A road sound insulation screen for generating electricity using the wind energy of vehicle flow

Abstract

The present invention discloses a road sound insulation screen for generating electricity by using the wind energy of vehicle flow, which relates to the technical field of sound insulation screens and includes a sound insulation screen body and a wind energy power generation mechanism. A plurality of wind energy power generation mechanisms are arranged side by side in a row, and a sound insulation screen body is arranged at the air inlet and / or the rear of each wind energy power generation mechanism. The wind energy power generation mechanism can generate electricity by using the vehicle flow wind, and the sound insulation screen body can reduce the noise of the vehicle flow wind. The present invention combines road wind power generation with a sound insulation screen, which can not only isolate the noise generated by high-speed vehicles, but also collect the wind energy generated by the vehicle flow, realize the effective utilization of wind energy power generation in the transportation field, practice the development concept of transportation integration, and reduce the carbon emissions and air pollution problems of thermal power generation.

Description

Technical Field

[0001] The present invention relates to the technical field of sound insulation screens, and particularly to a road sound insulation screen that utilizes the wind energy of vehicle flow for power generation. Background Art

[0002] With the rapid development of social economy, the connection between the two major fields of transportation and energy has become increasingly close. As an emerging development concept, the integration of transportation and energy deeply integrates the two major fields of transportation and energy, comprehensively utilizes transportation infrastructure and energy facilities, and realizes the efficient utilization of resources and the sustainable development of the environment.

[0003] The elevated sound insulation barrier is a sound insulation and noise reduction facility installed on both sides of urban elevated roads to isolate or reduce noise, so as to reduce the impact of the noise on the residents' living and daily life on both sides of the road. The existing traditional sound insulation barriers mainly consist of a sound absorption screen body - an acrylic sound insulation screen body and columns, with a single function, only having a noise reduction effect, and the functional effect is relatively single. The vehicles traveling at high speed strongly interfere with the air and transmit energy to the front and wake of the vehicle in the form of local wind energy. If this wind energy can be collected and utilized, it will endow the sound insulation screen with new functions and can also be used as a practice of the development concept of the integration of transportation and energy. Summary of the Invention

[0004] The purpose of the present invention is to provide a road sound insulation screen that utilizes the wind energy of vehicle flow for power generation, so as to solve the problems existing in the above-mentioned prior art, enable the wind energy of vehicle flow to be utilized for power generation, and practice the development concept of the integration of transportation and energy.

[0005] To achieve the above purpose, the present invention provides the following solutions:

[0006] The present invention provides a road sound insulation screen that utilizes the wind energy of vehicle flow for power generation, including a sound insulation screen body and a wind energy power generation mechanism. A plurality of the wind energy power generation mechanisms are arranged side by side in a row, and at least one of the air inlets and the rear of each of the wind energy power generation mechanisms is provided with the sound insulation screen body. The wind energy power generation mechanism can utilize the vehicle flow wind for power generation, and the sound insulation screen body can reduce the noise of the vehicle flow wind;

[0007] Sealing covers are provided at the upper ends of both the sound insulation screen body and the wind energy power generation mechanism, and the lower ends of both are inserted into a base. The wind energy power generation mechanism includes a magnetic induction power generation component and a wind cavity. The magnetic induction power generation component is arranged at the bottom of the wind cavity. The air inlet of the wind cavity faces the road, and the air outlet is located on one side of the magnetic induction power generation component. The air outlet is communicated with the air outlet channel in the base.

[0008] Preferably, the sound insulation screen body includes a perforated metal plate, glass fiber, and a metal back plate arranged in sequence, and the perforated metal plate is the windward surface.

[0009] Preferably, the sound insulation screen body and the air cavity are integrally arranged in an inverted L shape, and the power generation component of the wind energy power generation mechanism is located in the vertical section of the inverted L-shaped air cavity.

[0010] Preferably, the base is a concrete base, and the air outlet channel is poured in the concrete base. The air outlet channel is located below the magnetic induction power generation component.

[0011] Preferably, the air cavity includes an air inlet, a cyclone cavity and a rear channel. The width of the air inlet is smaller than that of the cyclone cavity. An arc-shaped partition is arranged between the cyclone cavity and the rear channel. A plurality of the magnetic induction power generation components stacked vertically are clamped in the rear channel.

[0012] Preferably, the magnetic induction power generation component includes a stator, a rotor and an induction coil. Both ends of the rotor are rotatably connected to one of the stators respectively. The induction coil covers the outside of the rotor. Both ends of the induction coil are respectively clamped in the card slots on the stator. The rotor is a propeller blade, and permanent magnets are arranged on the propeller blade. The induction coil is electrically connected to a current collection device.

[0013] Preferably, the cross section of the propeller blade is S-shaped, the permanent magnets are embedded in the edges of each blade, the induction coil includes two spliced metal rings and a plurality of metal rods, and a plurality of the metal rods are evenly distributed along the circumference between the two metal rings.

[0014] Preferably, a triboelectric power generation component is further arranged on the stator and the rotor. The triboelectric power generation component includes copper electrodes and a friction rotor. A plurality of the copper electrodes are clamped on each stator at equal intervals along the circumference. The friction rotor is fixedly connected to the top of the propeller blade, and the friction rotor and the copper electrodes can achieve surface contact and sliding friction.

[0015] Preferably, the material of the stator is an acrylic board, the material of the propeller blade is an insulating material, a friction negative film is pasted on the friction surface of the friction rotor, the friction negative film is a polytetrafluoroethylene material, and a printed circuit board with a gate structure is pasted on the stator.

[0016] Preferably, the copper electrodes are fan-shaped and have a thickness of 20 μm. The minimum distance between two adjacent copper electrodes is not less than 4 mm. There are 12 copper electrodes, and the centers of the copper electrodes are all electrically connected to a current collection device through a slip ring.

[0017] The present invention has achieved the following technical effects compared with the prior art:

[0018] The present invention combines road wind power generation with a sound insulation screen, which can not only isolate the noise generated by vehicles traveling at high speed, but also collect the wind energy generated by the traffic flow, realizing the effective utilization of wind energy power generation in the transportation field, practicing the development concept of transportation integration, and reducing the carbon emissions and air pollution problems of thermal power generation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 Structural schematic diagram of a road sound insulation screen for generating electricity using traffic flow wind energy in an embodiment of the present invention Figure 1 ;

[0021] Figure 2 Structural schematic diagram of a road sound insulation screen for generating electricity using traffic flow wind energy in an embodiment of the present invention Figure 2 ;

[0022] Figure 3 Structural schematic diagram of a road sound insulation screen for generating electricity using traffic flow wind energy in an embodiment of the present invention Figure 3 ;

[0023] Figure 4 Cross-sectional structural schematic diagram of a road sound insulation screen for generating electricity using traffic flow wind energy in an embodiment of the present invention;

[0024] Figure 5 Structural schematic diagram of a wind energy power generation mechanism in an embodiment of the present invention Figure 1 ;

[0025] Figure 6 Structural schematic diagram of a wind energy power generation mechanism in an embodiment of the present invention Figure 2 ;

[0026] Figure 7 In an embodiment of the present invention Figure 6 Partial structural schematic diagram at I;

[0027] Figure 8 Structural schematic diagram of a wind energy power generation mechanism in an embodiment of the present invention Figure 3 ;

[0028] Figure 9 Structural schematic diagram of a wind energy power generation mechanism in an embodiment of the present invention Figure 4 ;

[0029] Figure 10 Structural schematic diagram of multiple wind energy power generation mechanisms stacked in an embodiment of the present invention;

[0030] Figure 11 This is a schematic structural diagram of the rotor in the embodiment of the present invention;

[0031] Figure 12 This is a schematic structural diagram of the stator in the embodiment of the present invention;

[0032] In the figure: 1 - sound insulation screen body, 2 - base; 3 - wind energy generation mechanism, 31 - air inlet, 32 - air cyclone chamber, 33 - rear channel, 34 - arc-shaped partition; 4 - magnetic induction power generation component, 41 - stator, 411 - acrylic disc, 412 - copper electrode, 413 - slip ring, 42 - rotor, 421 - propeller blade, 422 - permanent magnet, 423 - rotating shaft, 424 - friction rotor, 43 - induction coil; 5 - air outlet channel. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0035] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0036] The object of the present invention is to provide a road sound insulation screen that utilizes the wind energy of vehicle flow to solve the problems existing in the prior art, enabling the wind energy of vehicle flow to be utilized for power generation and practicing the development concept of integrating transportation and energy.

[0037] In order to make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] Embodiment 1

[0039] As Figures 1 to 12 shown, in this embodiment, a road sound insulation screen that utilizes the wind energy of vehicle flow is provided, including a sound insulation screen body 1 and a wind energy power generation mechanism 3. A plurality of wind energy power generation mechanisms 3 are arranged side by side in a row. The air inlets 31 of each wind energy power generation mechanism 3 and at least one position behind are provided with a sound insulation screen body 1. The wind energy power generation mechanism 3 can utilize the vehicle flow wind for power generation, and the sound insulation screen body 1 can reduce the noise of the vehicle flow wind. The wind energy power generation mechanism 3 and the front row of sound insulation screen bodies 1 first generate power and reduce noise for the wind energy, and the rear row of sound insulation screen bodies 1 further reduces the noise of the remaining wind energy.

[0040] In this embodiment, sealing covers are provided at the upper ends of both the sound insulation screen body 1 and the wind energy power generation mechanism 3, and the lower ends are inserted into a base 2. The wind energy power generation mechanism 3 includes a magnetic induction power generation component 4 and a wind cavity. The magnetic induction power generation component 4 is arranged at the bottom of the wind cavity. The air inlet 31 of the wind cavity faces the road, and the air outlet is located on one side of the magnetic induction power generation component 4. The air outlet is communicated with an air outlet channel 5 in the base 2. This embodiment is preferably used on an elevated bridge. The air outlet channel 5 is located below the base 2 and is communicated with the outside atmosphere under the elevated bridge. The wind cavity is preferably composed of ceramic plate materials to further improve the sound insulation and noise reduction effect.

[0041] As an alternative solution, in this embodiment, the sound insulation screen body 1 includes a perforated metal plate, glass fiber, and a metal back plate arranged in sequence. The perforated metal plate is the windward surface, and the perforated metal plate and glass fiber can be used to reduce the noise of the vehicle flow wind.

[0042] As an alternative solution, in this embodiment, the sound insulation screen body 1 and the wind cavity are integrally arranged in an inverted L shape, and the power generation component of the wind energy power generation mechanism 3 is located in the vertical section of the inverted L-shaped wind cavity. In this embodiment, the setting of the inverted L-shaped structure, the inclined section above the inverted L-shaped structure can block part of the rainwater and enable the rainwater to flow down along the stream, avoiding rainwater backflow.

[0043] As an alternative solution, in this embodiment, the base 2 is a concrete base, and an air outlet channel 5 is poured in the concrete base. The air outlet channel 5 is located below the magnetic induction power generation component 4.

[0044] As an alternative, in this embodiment, the air cavity includes an air inlet 31, a cyclone cavity 32, and a rear channel 33. The width of the air inlet 31 is smaller than that of the cyclone cavity 32. An arc-shaped partition 34 is provided between the cyclone cavity 32 and the rear channel 33. A plurality of vertically stacked magnetic induction power generation components 4 are clamped in the rear channel 33. The height of each group of magnetic induction power generation components 4 is 10 cm - 50 cm, preferably 25 cm, and they are arranged in vertical segments. It can collect wind energy from different heights and different wind speeds, generate electricity at different speeds according to the wind speeds at different heights, can maximize the collection of wind energy, and the utilization of wind energy is more efficient. When a car passes by, the airflow generated by the vehicle flow enters from the air inlet 31, forms a cyclone in the cyclone cavity 32. After the cyclone is formed, a stable airflow is generated. When the airflow passes through the rear channel 33, it will accelerate and rotate the magnetic induction power generation component 4 to generate electricity. The arc-shaped partition 34 provided between the cyclone cavity 32 and the rear channel 33 in this embodiment has an airflow guiding effect, which is convenient for guiding the airflow from the cyclone cavity 32 to the rear channel 33 for wind power generation. According to the principle of the air multiplier, the airflow generated by the vehicle is accelerated through the cyclone cavity 32 and the rear channel 33, and then pushes the rotor 42 of the magnetic induction power generation component 4 at a high speed, thereby generating electric energy; this design can avoid designing additional fan blade generators on the road, making both sides of the road simpler and more beautiful.

[0045] As an alternative, in this embodiment, the magnetic induction power generation component 4 includes a stator 41, a rotor 42, and an induction coil 43. The two ends of the rotor 42 are respectively rotatably connected to a stator 41 through a rotating shaft 423. The induction coil 43 covers the outside of the rotor 42. The two ends of the induction coil 43 are respectively clamped in the card slots on the stator 41. The rotor 42 is a propeller blade 421. A permanent magnet 422 is provided on the propeller blade 421. The induction coil 43 is electrically connected to a current collection device. Among them, the blade of the propeller blade 421 is made of non-crystalline copolyester (PETG) material, which not only ensures toughness but also has the characteristics of being light, thin, and heat-resistant. The propeller blade 421 rotates with the permanent magnet 422, and the induction coil 43 cuts the magnetic induction lines generated by the permanent magnet 422, thereby generating an electric current in the induction coil 43.

[0046] As an alternative, in this embodiment, the cross-section of the propeller blade 421 is S-shaped. The permanent magnet 422 is embedded in the edge of each blade. The induction coil 43 includes two spliced metal rings and a plurality of metal rods. A plurality of metal rods are evenly distributed along the circumferential direction between the two metal rings, forming two semi-circular metal cages. The metal rods are used to cut the magnetic induction lines generated by the induction coil 43. Among them, the induction coil 43 includes two semi-cylindrical tubes that can be spliced into a cylinder. Each semi-cylindrical tube includes two upper and lower semi-circular rods and a plurality of metal rods. A plurality of metal rods are provided between the two semi-circular rods.

[0047] In this embodiment, an upgrade of the traditional sound insulation screen is realized. By adding a wind power generation mechanism 3 to the sound insulation screen body 1, it not only has the noise reduction effect of sound absorption and insulation and blocking the propagation of noise, but also can convert wind energy into electrical energy for wind power generation, maximizing resource utilization and having extremely high economic and social benefits.

[0048] Embodiment 2

[0049] As shown in Figures 10 to 12 the figure, different from Embodiment 1, as an alternative solution, a triboelectric power generation component is further provided on the stator 41 and the rotor. The triboelectric power generation component includes a copper electrode 412 and a friction rotor 424. A plurality of copper electrodes 412 are circumferentially and equidistantly clamped on each stator 41. A friction rotor 424 is fixedly connected to the top of the propeller blade 421. The friction rotor 424 and the copper electrode 412 can achieve surface contact and sliding friction. Among them, the friction negative electrode on the friction rotor 424 and the copper electrode 412 can generate electricity by friction.

[0050] As an alternative solution, in this embodiment, the stator 41 is made of acrylic board. The stator 41 is preferably an acrylic disc 411, and an annular clamping groove is provided at the edge for clamping and positioning the induction coil 43. The propeller blade 421 is made of insulating material. A friction negative electrode film is pasted on the friction surface of the friction rotor 424. The friction negative electrode film is made of polytetrafluoroethylene material (PTFE). The insulating material can protect other structures from charge interference. A printed circuit board with a grid structure (PCB grid board) is pasted on the stator 41. A copper foil is pasted on the surface of the printed circuit board. The copper electrode 412 is welded to the component leads of the PCB grid board. The PCB grid board can achieve precise control, real-time monitoring, fault protection, efficiency optimization and design simplification, improving the performance and reliability of the generator. The amount of transferred charge generated when polytetrafluoroethylene (PTFE film) rubs against the copper electrode 412 is very large, so it is preferably used as the material for triboelectric power generation. The non-friction surface of the friction rotor 424 can also be pasted with a polyimide (PI) insulating film for insulation.

[0051] As an alternative solution, in this embodiment, the copper electrode 412 is fan-shaped and has a thickness of 20 μm. The minimum distance between two adjacent copper electrodes 412 is not less than 4 mm. There are 12 copper electrodes 412. The centers of the copper electrodes 412 are all electrically connected to a current collection device through a slip ring 413. The current collected by the current collection device is connected to the power grid after conversion and can also be used to supply power to the infrastructure on the road, such as street lights.

[0052] In this embodiment, the power generation principles of the magnetic induction power generation component 4 and the triboelectric power generation component are as follows: When the air flow passes through the rear channel 33, the rotor 42 rotates. The rotor 424 is pasted with a triboelectric negative electrode. When the rotor rotates, it rubs against the triboelectric positive electrode (copper electrode 412) of the stator 41. Relative movement occurs on the surfaces of the two electrode materials, which leads to charge separation. Electrons on the surface of the material of the triboelectric positive electrode are transferred to the surface of the material of the triboelectric negative electrode, making the surface of the triboelectric negative electrode carry negative charges and the surface of the triboelectric positive electrode carry positive charges, generating a potential difference and charge accumulation. When there is relative displacement or disconnection of contact between the two surfaces of the triboelectric positive electrode (copper electrode 412) and the triboelectric negative electrode film, charges will flow through the external circuit, thus generating current and power output. At the same time, when the rotor 42 rotates, the permanent magnet 422 on the rotor 42 will generate a continuously changing magnetic field, and the induction coil 43 will induce an electromotive force. The induced electromotive force will cause charges to move in the conductor coil, thereby generating current.

[0053] In this embodiment, road wind power generation is combined with a sound insulation screen, which can not only isolate the noise generated by vehicles driving at high speed, but also collect the wind energy generated by the traffic flow, realizing the effective utilization of wind energy power generation in the transportation field, being able to practice the development concept of transportation integration, and reducing the carbon emissions and air pollution problems of thermal power generation; it has a high-efficiency composite collection power generation method that combines triboelectric nanogeneration and electromagnetic induction power generation, comprehensively considering the output characteristics of triboelectric nanogenerators with high voltage and high impedance and electromagnetic induction generators with low voltage and low impedance, and has the characteristics of high efficiency and low power consumption. By connecting road wind turbines to road infrastructure such as street lights, an independent self-powered monitoring system is formed, avoiding the costs brought by cable laying and maintenance.

[0054] In the present invention, specific examples are used to elaborate on the principles and implementation manners of the present invention. The descriptions of the above embodiments are only used to help understand the method and its core idea of the present invention. At the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A road sound insulation screen for generating electricity by using the wind energy of vehicle flow, characterized in that: It includes a sound insulation screen body and a wind energy power generation mechanism. A plurality of the wind energy power generation mechanisms are arranged side by side in a row, and the sound insulation screen body is provided at least at one of the air inlets and the rear of each wind energy power generation mechanism. The wind energy power generation mechanism can generate electricity by using the traffic flow wind, and the sound insulation screen body can reduce the noise of the traffic flow wind. Sealing covers are provided at the upper ends of both the sound insulation screen body and the wind energy power generation mechanism, and the lower ends of both are inserted into a base. The wind energy power generation mechanism includes a magnetic induction power generation component and a wind cavity. The magnetic induction power generation component is arranged at the bottom of the wind cavity. The air inlet of the wind cavity faces the road, and the air outlet is located on one side of the magnetic induction power generation component. The air outlet is communicated with the air outlet channel in the base. The wind cavity includes an air inlet, a cyclone cavity and a rear channel. The width of the air inlet is smaller than the width of the cyclone cavity. An arc-shaped partition is provided between the cyclone cavity and the rear channel. A plurality of the magnetic induction power generation components stacked vertically are clamped in the rear channel.

2. The road sound insulation screen for generating electricity by using the wind energy of vehicle flow according to claim 1, wherein: The sound insulation screen body includes a perforated metal plate, fiberglass and a metal back plate arranged in sequence. The perforated metal plate is the windward surface.

3. The road sound insulation screen for generating electricity using the wind energy of vehicle flow according to claim 1, characterized in that: Both the sound insulation screen body and the wind cavity are arranged in an inverted L shape, and the power generation component of the wind energy power generation mechanism is located in the vertical section of the inverted L-shaped wind cavity.

4. The road sound insulation screen for generating electricity by using the wind energy of vehicle flow according to claim 1, characterized in that: The base is a concrete base, and the air outlet channel is poured in the concrete base. The air outlet channel is located below the magnetic induction power generation component.

5. The road sound insulation screen for generating electricity by using the wind energy of vehicle flow according to claim 1, wherein: The magnetic induction power generation component includes a stator, a rotor and an induction coil. The two ends of the rotor are respectively rotatably connected to a stator. The induction coil covers the outside of the rotor. The two ends of the induction coil are respectively clamped in the card slots on the stator. The rotor is a propeller blade, and a permanent magnet is provided on the propeller blade. The induction coil is electrically connected to a current collection device.

6. The road sound insulation screen for generating electricity by using the wind energy of vehicle flow according to claim 5, characterized in that: The cross section of the propeller blade is S-shaped, the permanent magnet is embedded at the edge of each blade, and the induction coil includes two spliced metal rings and a plurality of metal rods. A plurality of the metal rods are evenly distributed along the circumference between the two metal rings.

7. The road sound insulation screen for generating electricity by using the wind energy of vehicle flow according to claim 5, characterized in that: A triboelectric power generation component is also provided on the stator and the rotor. The triboelectric power generation component includes a copper electrode and a friction rotor. A plurality of the copper electrodes are clamped on each stator at equal intervals along the circumference. The friction rotor is fixedly connected to the top of the propeller blade. The friction rotor and the copper electrode can achieve surface contact and sliding friction.

8. The road sound insulation screen for generating electricity by using the wind energy of vehicle flow according to claim 7, characterized in that: The material of the stator is acrylic board, the material of the propeller blade is insulating material, a friction negative film is pasted on the friction surface of the friction rotor, the friction negative film is made of polytetrafluoroethylene material, and a printed circuit board with a grid structure is pasted on the stator.

9. The road sound insulation screen for generating electricity by using the wind energy of vehicle flow according to claim 7, characterized in that: The copper electrode is fan-shaped and has a thickness of 20μm. The minimum distance between adjacent two copper electrodes is not less than 4mm. There are 12 copper electrodes, and the centers of the copper electrodes are all electrically connected to the current collection device through a slip ring.

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