Dynamic wireless charging road system and layout process thereof

Abstract

The invention discloses a dynamic wireless charging road system and a layout process thereof, and belongs to the field of road engineering materials and road infrastructures. The road system comprises a plurality of wind-solar-storage integrated power supply devices, a road surface, a plurality of underground working spaces, an accumulated water diversion trench and a drainage pipeline. Wherein the underground working space is a rectangular foundation pit, a transmitting coil is laid at the bottom of the foundation pit, and a cover plate is arranged at the top and is in the same plane with the pavement; the drainage pipeline is arranged below the foundation pit; the accumulated water diversion trench is formed in the side edge position of the bottom of the foundation pit and communicates with the drainage pipeline; a plurality of drainage holes are formed in the side edge, adjacent to the accumulated water diversion trench, of the cover plate; the wind and light storage integrated power supply device comprises a wind driven generator, a solar cell panel, street lamp lighting equipment, an energy storage battery and a main supporting rod. The system can avoid the adverse effects of the heat effect generated by the transmitting coil and road surface accumulated water on rainy days on vehicle driving and the charging system, and realizes energy self-consistent, green and clean, and cost reduction and efficiency improvement of wireless charging of the highway vehicles.

Description

Technical Field

[0001] The present invention belongs to the field of road engineering materials and road infrastructure, and particularly relates to a dynamic wireless charging road system and a layout process thereof. Background Art

[0002] With the in-depth practice of the global concept of sustainable development and green travel, the popularization of electric vehicles has become an irresistible trend. However, the driving range and charging convenience of electric vehicles have always been the key factors restricting their wide application. As an innovative solution, dynamic wireless charging technology realizes real-time charging of electric vehicles during driving by laying wireless charging facilities on the road, greatly improving the use convenience and driving range performance of electric vehicles.

[0003] In the practical application of dynamic wireless charging technology, the design of the charging device and its layout process are crucial. Most traditional charging devices use a slotless or multi-slot scheme to lay the transmitting coil, and ordinary concrete is mostly used as the road surface material. However, these schemes have certain limitations in electromagnetic transmission efficiency. Ordinary concrete will interfere with the magnetic field generated by the transmitting coil, and the inductance and magnetic induction coefficient of the slotless and multi-slot laying schemes are relatively low, so the charging efficiency will be significantly reduced and the energy loss will be increased.

[0004] In addition to the design of the transmitting coil, the heat dissipation and rainwater treatment system of the charging device are also important links that cannot be ignored. Existing research shows that during the charging process, the thermal effect of the coil is significant, and high temperatures of 30°C - 70°C are possible. In an environment with a large traffic flow and long-term operation of the coil, the long-term high-temperature environment will affect the road surface structure and the working state of electronic components, including causing road surface cracking and electronic component malfunctions. Currently, there are few application cases considering the thermal effect of wireless charging. At the same time, considering that the coil is buried below the road surface, excessive rainwater infiltration during rainy days will cause circuit breakage and component corrosion, so it is necessary to timely treat the accumulated water on the road surface. Currently, there is no relatively mature case of a combined treatment plan for the thermal effect and road surface water treatment.

[0005] Existing dynamic road wireless charging models commonly use centralized solar and wind power stations beside the road for power supply. The energy supply and storage facilities are concentrated and single. These facilities also need to occupy a certain amount of land, and due to centralized power generation, a relatively long power supply line needs to be laid along the highway, increasing power supply losses, making it difficult to troubleshoot during faults, having insufficient stability, and weak anti-risk ability. Some wireless charging systems rely on the urban power grid for power supply. Today, when thermal power still accounts for the main position, the energy-saving and environmental protection performance of this scheme is not significant enough. Therefore, it is necessary to design a set of wireless charging road facilities that can adapt to a relatively long section of the highway. Summary of the Invention

[0006] To solve the above technical problems, the purpose of the present invention is to provide a dynamic wireless charging road system and its laying process. This system can well handle the heat effect generated by the transmitting coil during the dynamic wireless charging of electric vehicles, as well as the adverse effects of road surface water accumulation on vehicle driving and the charging system during rainy days. At the same time, it realizes energy self-consistency, green and clean, and also realizes cost reduction and efficiency improvement in highway vehicle wireless charging, meeting various charging and endurance requirements of electric vehicles.

[0007] To achieve the above purpose, the present invention adopts the following technical solutions: Provide a dynamic wireless charging road system, which successively includes from top to bottom: multiple integrated wind-solar-storage power supply devices, road surface, multiple underground working spaces, water accumulation diversion grooves, and drainage pipes; where: The underground working space is a rectangular foundation pit, and a transmitting coil is laid at the bottom of the rectangular foundation pit; a cover plate is provided at the top of the rectangular foundation pit, and the cover plate is on the same plane as the road surface; The drainage pipe is arranged below the rectangular foundation pit; The water accumulation diversion groove is arranged at the side position of the bottom of the rectangular foundation pit and is connected to the drainage pipe; the cover plate is provided with a plurality of drainage holes at the side adjacent to the water accumulation diversion groove; The integrated wind-solar-storage power supply device includes a wind turbine, a solar panel, a street lamp lighting device, a storage battery, and a main support pole; the wind turbine is arranged at the top of the main support pole, the street lamp lighting device is arranged at the upper part of the main support pole, the solar panel is arranged on the street lamp lighting device, the storage battery is arranged at the grounding position of the main support pole and is respectively connected to the wind turbine, the solar panel, and the street lamp lighting device; the integrated wind-solar-storage power supply device is connected to the transmitting coil through a wire.

[0008] According to the above scheme, one integrated wind-solar-storage power supply device is equipped for 30 - 70 underground working spaces.

[0009] According to the above scheme, the transmitting coil unit is made of 250 - 1000 0.1mm dividend litz wire, the cross-sectional diameter of the coil wire is 2 - 4mm, wound into a rectangle, and wound 10 - 15 turns. The transmitting coil adopts a rectangular coil layout method, which has a better magnetic conduction effect during dynamic wireless charging, and has a simple shape, which is convenient for manufacturing, transportation, installation and laying, and quality control.

[0010] According to the above scheme, the closest distance between the adjacent sides of two adjacent underground working spaces is 800 - 1200mm.

[0011] According to the above scheme, the depth of the rectangular foundation pit is 5 - 10cm.

[0012] According to the above scheme, the center of the cross-section of the drainage pipe is 110 - 130 cm away from the road surface. Preferably, the radius of the drainage pipe is 40 - 60 cm.

[0013] According to the above scheme, the closest distance between the inner side of the port of the water accumulation diversion trough at the bottom of the rectangular foundation pit and the edge of the transmitting coil is 100 - 150 mm.

[0014] According to the above scheme, for each underground working space, one water accumulation diversion trough is provided on each of the two opposite sides of the rectangular foundation pit, for a total of two.

[0015] Preferably, one diversion trough is provided in front of and behind the vehicle in the driving direction.

[0016] According to the above scheme, 3 - 5 drainage holes are provided on the side of the cover plate adjacent to the water accumulation diversion trough.

[0017] Preferably, the holes on the cover plate are evenly distributed.

[0018] Preferably, the radius of the holes is 20 - 30 mm.

[0019] According to the above scheme, the thickness of the cover plate is 2 - 4 cm.

[0020] According to the above scheme, the cover plate is a road surface magnetic concrete.

[0021] According to the above scheme, the foundation pit is square with a side length of 800 - 1200 mm; the transmitting coil is rectangular with a length of 600 - 1000 mm and a width of 400 - 800 mm.

[0022] According to the above scheme, the cross-section of the water accumulation diversion trough is rectangular, with a width of 50 - 100 mm and a length of 800 - 1200 mm.

[0023] According to the above scheme, the wind turbine is provided with a total of 3 fan blades, and the length of each fan blade is 40 - 60 cm, and the maximum through diameter is 5 - 7 cm.

[0024] According to the above scheme, the solar panel is laid at an angle of 30 - 45° with the horizontal plane, and the illumination plane is rectangular, with a length of 50 - 70 cm and a width of 40 - 60 cm.

[0025] According to the above scheme, the street lamp lighting device has an illumination power of 30 - 50 W and a working voltage of 10 - 16 V.

[0026] According to the above scheme, there are two street lamp lighting devices, which are respectively on both sides of the upper part of the main support pole.

[0027] According to the above scheme, the energy storage battery is installed at the grounding point of the main support pole and in the central green belt of the road surface, with a storage capacity of 250 - 400 kWh.

[0028] According to the above solution, in the integrated wind-solar-storage power supply device, LED lights are installed near the solar panels and wind turbines respectively to display the working status and fault conditions of each component, facilitating fixed-point inspection and maintenance.

[0029] According to the above solution, the connecting wires in the integrated wind-solar-storage power supply device are laid inside each support rod, and the power facilities of the integrated wind-solar-storage power supply device are connected to the transmitting coil through underground wires.

[0030] According to the above solution, the underground working space is arranged in the middle of the dynamic wireless charging road.

[0031] According to the above solution, the integrated wind-solar-storage power supply device is connected to the urban power grid. In case of extreme weather and other situations, temporary power supply can be carried out through the urban power grid to ensure the reliability of the device.

[0032] Provide a layout process for the above dynamic wireless charging road system, including the following steps: 1) Laying the basic road surface structure: Normally complete the construction of the lower, middle, and upper layers under the dedicated dynamic wireless charging lane. When constructing the lower layer, reserve space for the drainage pipeline and lay the drainage pipeline; normally construct the middle and upper layers to form a flat road surface; 2) Constructing the underground working space: On the flat road surface of the upper road structure, excavate a rectangular foundation pit according to the design position of the underground working space, and excavate a water accumulation diversion groove on the side of the foundation pit, penetrating downward through the middle road structure to the drainage pipeline; reserve pores on the side of the rectangular foundation pit for subsequent wire connection; 3) Laying the transmitting coil at the bottom of the rectangular foundation pit, and pulling out the transmitting coil wires through the pores reserved in step 2); 4) Repeating the construction of the underground working space structure: Repeat steps 2) and 3), and repeat the construction of the underground working space until reaching the end of the lane to be laid; 5) Installing the integrated wind-solar-storage power supply device; 6) Connecting the wires of the transmitting coil pulled out in step 3) to the integrated wind-solar-storage power supply facilities obtained in step 5); 7) Correctly installing the precast cover plate on the top of the underground working space to form a flat driving road surface, and the construction is completed.

[0033] According to the above solution, in step 1), the construction of the lower, middle, and upper layers of the dedicated dynamic wireless charging lane is normally completed in accordance with the "Construction and Acceptance Standards for Highway Pavement Engineering" GB 50306-2010.

[0034] According to the above solution, in step 2), pores are reserved on one side of the foundation pit close to the green belt.

[0035] According to the above solution, in step 3), the wire of the transmitting coil is towed to the green belt area.

[0036] According to the above solution, in step 5), one integrated wind-solar-storage power supply facility is equipped for every 30 - 70 underground working spaces.

[0037] According to the above solution, in step 5), the installation is carried out in the order of "main support rod - street lamp lighting equipment - solar panel - wind turbine - LED lamp - energy storage battery".

[0038] According to the above solution, in step 6), the wire of the transmitting coil is connected to the energy storage battery of the integrated wind-solar-storage power supply facility obtained in step 5).

[0039] According to the above solution, in step 6), the cover plate is made of road magnetic concrete.

[0040] According to the above solution, the dynamic wireless charging road is set at one lane closest to the central green belt in each direction of the highway; preferably, it is marked with dark green paint.

[0041] According to the above solution, the dynamic wireless charging road is applicable to the dynamic charging of new energy vehicles.

[0042] According to the above solution, the distance between the transmitting coil and the vehicle-mounted receiving coil is 18 - 22 cm.

[0043] The present invention provides a dynamic wireless charging road system, comprising: a plurality of integrated wind-solar-storage power supply devices, a road surface, a plurality of underground working spaces, a water accumulation diversion trough, and a drainage pipe; wherein the underground working space further has a cover plate provided with drainage holes. On the one hand, the heat generated by the coil can be dissipated into the air in time through the drainage holes, ensuring that the temperature of the underground working space is consistent with the ambient temperature, avoiding local overheating of the road surface or electronic components caused by the thermal effect during coil power supply, and further avoiding affecting the working condition of the electronic components and the road surface safety. On the other hand, during rainy days, the accumulated water can directly flow into the water accumulation diversion trough along the drainage holes, preventing the accumulated water from seeping into the coil area, and further avoiding short circuits or corrosion and rust of the circuit. Through the combined diversion path of the drainage holes - water accumulation diversion trough, rainwater is prevented from flowing into the transmitting coil, ensuring the safety of the system. At the same time, the present invention also adopts an integrated wind-solar-storage power supply facility, which integrates wind power generation, solar power generation, street lighting, and electric energy storage, greatly saving the occupied space and improving the adaptability in various highway application scenarios. During the day, the energy generated by the solar panels, and the energy generated by the wind turbines on windy days, are simultaneously converted into static energy reserves in the energy storage battery, effectively avoiding the unstable power supply caused by the dynamic nature of the weather, providing a basis for long-term and stable power supply. When a vehicle enters the corresponding section, the wireless charging unit consumes the energy storage, passes a regularly changing current, and generates a stable charging effect to meet the actual dynamic charging requirements.

[0044] Furthermore, by controlling the spacing between adjacent underground working spaces, the spacing of each transmitting coil is made reasonable to ensure relatively stable current during the charging process of new energy vehicles; at the same time, one integrated wind-solar-storage power supply device is equipped for every 30 - 70 underground working spaces, which better fits the road surface lighting requirements and the power supply requirements of each transmitting coil, making the energy supply level match the coil power consumption level, and achieving long-term dynamic and stable charging.

[0045] The beneficial effects of the present invention are as follows: 1. The present invention provides a dynamic wireless charging road system. The cover plate on the top of the underground working space is provided with drainage holes. While effectively dissipating heat, the accumulated water during rain can flow into the water accumulation diversion trough through the drainage holes in a timely manner and finally flow into the drainage pipeline, which can avoid the thermal effect during coil power supply and the infiltration of rainwater into the coil, effectively ensuring the circuit safety. At the same time, multiple integrated wind-solar-storage power supply devices are configured, integrating wind power generation, solar power generation, street lighting, and electric energy storage. An energy flow path of "dual-source clean power generation of wind and solar - dynamic electric energy storage and utilization - long-distance stable coil charging output" is designed, which can ensure power supply under various environmental conditions such as sunny days (abundant solar energy) and rainy days (abundant wind power or using battery power supply), realizing a self-consistent supply of green energy, basically getting rid of the dependence on external power grids, avoiding the use of traditional energy sources, and being green and environmentally friendly. At the same time, the road design of the present invention can cover the whole process of "power supply - storage - transmission - utilization" of electric energy, realizing the decentralization and independence of power supply and transmission devices along the road direction. Any construction road surface unit can independently achieve energy self-consistency, without interference with each other, easy to repair, and greatly improving stability, having important application prospects.

[0046] 2. The present invention provides a layout process for a dynamic wireless charging road system, designing a one-time and integrated construction process. Through systematic design, the integrated construction of the drainage system and the heat dissipation system is realized, eliminating the need for separate construction of auxiliary structures, avoiding the impact on existing structures caused by repeated excavation and construction, and also avoiding the cumbersome problems such as the need for separate layout of the power supply system, energy storage system, and wireless charging road surface device, different implementation standards, and incompatibility. Finally, a wireless charging lane applicable to urban roads and highways is obtained. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 It is a general schematic diagram of the dynamic wireless charging road system described in the embodiment of the present invention.

[0048] Figure 2 It is a distribution schematic diagram of the underground working space, water accumulation diversion trough, drainage pipeline, etc. in the wireless charging road system of the embodiment of the present invention; wherein: 101 - transmitting coil, 102 - underground working space, 201 - drainage pipeline, 202 - water accumulation diversion trough, 203 - cover plate.

[0049] Figure 3 It is a schematic diagram of the integrated wind-solar-storage power supply device of the embodiment of the present invention; wherein: 301 - solar panel, 302 - street lighting equipment, 303 - wind turbine, 304 - energy storage battery.

[0050] Figure 4 It is a top view of the construction plan for the layout of the underground working space in Embodiment 3 of the present invention, with the unit of mm.

[0051] Figure 5This is the road profile along the driving direction in Embodiment 3 of the present invention, with the unit being mm. Detailed implementation manners

[0052] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0053] An embodiment of the present invention provides a dynamic wireless charging road system, as Figures 1-3 shown, which successively includes from top to bottom: a plurality of integrated wind-solar-storage power supply devices, a road surface, a plurality of underground working spaces, a water accumulation diversion groove and a drainage pipe; wherein: The underground working space is a rectangular foundation pit, and a transmitting coil is laid at the bottom of the rectangular foundation pit; a cover plate is provided at the top of the rectangular foundation pit, and the cover plate is on the same plane as the road surface; The drainage pipe is arranged below the rectangular foundation pit; The water accumulation diversion groove is arranged at the side position of the bottom of the rectangular foundation pit and is communicated with the drainage pipe; a plurality of drainage holes are provided on the side of the cover plate adjacent to the water accumulation diversion groove.

[0054] The integrated wind-solar-storage power supply device includes a wind turbine, a solar panel, a street lamp lighting device, a storage battery and a main support rod; the wind turbine is arranged at the top of the main support rod, the street lamp lighting device is arranged at the upper part of the main support rod, the solar panel is arranged on the street lamp lighting device, the storage battery is arranged at the grounding position of the main support rod and is respectively communicated with the wind turbine, the solar panel and the street lamp lighting device; the integrated wind-solar-storage power supply device is communicated with the transmitting coil through a wire.

[0055] In one embodiment, one integrated wind-solar-storage power supply device is equipped for 30 - 70 underground working spaces.

[0056] In one embodiment, the transmitting coil unit is made of 250 - 1000 0.1 mm litz wire, the cross-sectional diameter of the coil wire is 2 - 4 mm, wound into a rectangle, and wound 10 - 15 turns.

[0057] In one embodiment, the closest distance between the adjacent sides of two adjacent underground working spaces is 800 - 1200 mm.

[0058] In one embodiment, the depth of the rectangular foundation pit is 5 - 10 cm.

[0059] In one embodiment, the center of the cross-section of the drainage pipe is 110 - 130 cm away from the road surface.

[0060] In one embodiment, the minimum distance between the inner side of the port at the bottom of the rectangular foundation pit and the edge of the transmitting coil is 100 - 150 mm.

[0061] In one embodiment, for each underground working space, one water accumulation diversion groove is provided on each of the two opposite sides of the rectangular foundation pit, for a total of two. Preferably, one diversion groove is provided in the front and one in the rear along the driving direction of the vehicle.

[0062] In one embodiment, the cover plate is provided with 3 - 5 drain holes on the side adjacent to the water accumulation diversion groove. Preferably, the holes on the cover plate are evenly distributed; the hole radius is 20 - 30 mm.

[0063] In one embodiment, the thickness of the cover plate is 2 - 4 cm; the cover plate is a road magnetic concrete.

[0064] In one embodiment, the foundation pit is square, with a side length of 800 - 1200 mm; the transmitting coil is rectangular, with a length of 600 - 1000 mm and a width of 400 - 800 mm.

[0065] In one embodiment, the cross-section of the water accumulation diversion groove is rectangular, with a width of 50 - 100 mm and a length of 800 - 1200 mm.

[0066] In one embodiment, the wind turbine is provided with a total of 3 fan blades, each fan blade having a length of 40 - 60 cm and a maximum diameter of 5 - 7 cm.

[0067] In one embodiment, the solar panel is laid at an angle of 30 - 45° with the horizontal plane, and the illuminated plane is rectangular, with a length of 50 - 70 cm and a width of 40 - 60 cm.

[0068] In one embodiment, the street lamp lighting device has a lighting power of 30 - 50 W and a working voltage of 10 - 16 V.

[0069] In one embodiment, there are two street lamp lighting devices, respectively on both sides of the upper part of the main support pole.

[0070] In one embodiment, the energy storage battery is installed at the grounding point of the main support pole and in the central green belt of the road surface, with a power storage capacity of 250 - 400 kWh.

[0071] In one embodiment, in the integrated wind-solar-storage power supply device, LED lights are installed near the solar panel and the wind turbine respectively to display the working status and fault conditions of each component, facilitating fixed-point inspection and maintenance.

[0072] In one embodiment, the connecting wires in the integrated wind-solar-storage power supply device are laid inside each support rod, and the power facilities of the integrated wind-solar-storage power supply device are connected to the transmitting coil through underground wires.

[0073] In one embodiment, the underground working space is located in the middle of the dynamic wireless charging road.

[0074] In the following embodiments, the magnetic concrete used adopts high-performance permanent magnet materials such as strontium ferrite and barium ferrite (accounting for 10% of the target product quality), cement (accounting for 30% of the target product quality), fine aggregate (sand, accounting for 30% of the target product quality), coarse aggregate (stones, accounting for 25% of the target product quality), and water (accounting for 5% of the target product quality).

[0075] Embodiment 1 The dynamic wireless charging road provided in this embodiment is applied to the dynamic charging of new energy vehicles on highways. The road width is 3.75 m, and the designed speed is 100 km / h. The specific construction process includes the following steps: 1) Normally complete the construction of the middle and lower layers of the special road surface for new energy vehicle charging according to the "Construction and Acceptance Standards for Highway Pavement Engineering" GB 50306-2010, and embed drainage pipes in the subgrade of the lower layer. The radius of the drainage pipe is 40 cm, and the center of its cross-section is 110 cm below the driving road surface.

[0076] 2) Excavate a rectangular foundation pit, and respectively excavate water accumulation diversion grooves on the front and rear sides along the driving direction, which are connected to the drainage pipes; reserve pores at the connection with the green belt for subsequent wire connection. The rectangular foundation pit is square, with a side length of 800 mm and a depth of 5 cm. The cross-section of the water accumulation diversion groove is rectangular, with a width of 75 mm and a length of 800 mm.

[0077] 3) Lay the Litz wire according to the dimension standard to obtain the transmitting coil, and pull the transmitting coil wire to the ground of the green belt through the reserved pores. The diameter of the Litz wire is 2 mm, and it is wound 10 turns; the transmitting coil is wound into a rectangle, with a length of 600 mm and a width of 400 mm.

[0078] 4) Repeatedly construct the underground working space structure, where the shortest distance between adjacent sides of adjacent underground working spaces is 800 mm until reaching the end of the lane to be paved.

[0079] 5) One integrated wind-solar-storage power supply facility is equipped for every 50 underground workspaces, and the installation is carried out in the order of "main support pole - street lamp lighting equipment - solar panel - wind turbine - LED lamp - energy storage battery". Among them, for the wind turbine, there are 3 fan blades, each fan blade is 40 cm long, the maximum diameter is 5 cm, and it is set at the top of the main support pole; for the street lamp lighting equipment, its power is 30 W, the working voltage is 12 V, and there are two, which are respectively set on both sides of the upper part of the main support pole; for the solar panel, 1 piece is installed on each of the two street lamp lighting equipment, its laying plane forms an angle of 30° with the horizontal plane, 50 cm long and 40 cm wide; for the energy storage battery, its storage capacity is 250 kWh, and it is installed at the grounding place of the main support pole. Connect the circuit connections of each electronic component in the integrated wind-solar-storage power supply facility, and connect the energy storage battery to each transmitting coil unit through the reserved pores.

[0080] 6) Correctly install the precast road surface magnetic concrete cover on the top of the underground work space to form a flat driving road surface. For the road surface magnetic concrete cover, its shape is a cuboid, with a length and width of 800 mm each and a thickness of 2 cm, and the material is magnetic concrete. For each road surface magnetic concrete cover, 3 drainage holes are provided on each of the opposite sides, and when installing, ensure that the side with drainage holes is adjacent to the water accumulation diversion groove. The radius of a single drainage hole is 20 mm; for the holes on the same side, the centers of the holes are 200 mm apart.

[0081] After road surface detection and energy analysis, the energy utilization situation of this system embodiment is shown in Table 1, the drainage performance is shown in Table 2, and the road lighting coverage and the continuity of charging supply are shown in Table 3.

[0082] Embodiment 2 The dynamic wireless charging road provided in this embodiment is applied to the dynamic charging of new energy vehicles on highways. The road width is 3.75 m, and the designed speed is 100 km / h. The specific construction process includes the following steps: 1) Normally complete the construction of the middle and lower layers of the special road surface for new energy vehicle charging in accordance with the "Code for Construction and Acceptance of Highway Pavement Engineering" GB 50306-2010, and embed drainage pipes in the subgrade. The radius of the drainage pipe is 60 cm, and the center of its cross-section is 130 cm below the driving road surface.

[0083] 2) Excavate a rectangular foundation pit, and respectively excavate water accumulation diversion grooves on the front and rear sides along the driving direction, and connect them to the drainage pipes; reserve pores for connecting the green belt for subsequent wire connection. The concrete groove is square, with a side length of 1200 mm and a depth of 10 cm. The cross-section of the water accumulation diversion groove is rectangular, with a width of 75 mm and a length of 1200 mm.

[0084] 3) Lay the Litz wire according to the size standard to obtain the transmitting coil, and draw the coil wire to the ground of the green belt through the reserved pores. The diameter of the Litz wire is 4 mm, and it is wound 15 turns; the coil is wound into a rectangle with a length of 1000 mm and a width of 800 mm.

[0085] 4) Repeat the construction of the underground working space structure, where the shortest distance between adjacent side edges of adjacent underground working spaces is 1200 mm, until reaching the end of the lane to be paved.

[0086] 5) Equip each 50 underground working spaces with 1 integrated wind-solar-storage power supply facility, and install it in the order of "main support pole - street lamp lighting equipment - solar panel - wind turbine - LED lamp - energy storage battery". Among them, for the wind turbine, there are 3 fan blades, each fan blade is 60 cm long, the maximum diameter is 7 cm, and it is set on the top of the main support pole; for the street lamp lighting equipment, its power is 50 W, the working voltage is 12 V, and there are two, which are respectively set on both sides of the upper part of the main support pole; for the solar panel, 1 piece is installed on each of the two street lamp lighting equipment, its laying plane forms a 30° angle with the horizontal plane, 70 cm long and 40 cm wide; for the energy storage battery, its storage capacity is 400 kWh, and it is installed at the grounding place of the main support pole. Connect the circuit connections of each electronic component in the integrated wind-solar-storage power supply facility, and connect the energy storage battery to each transmitting coil unit through the reserved pores.

[0087] 6) Correctly install the precast road surface magnetic concrete cover on the top of the underground working space to form a flat driving road surface. For the road surface magnetic concrete cover, its shape is a cuboid, with a length and width of 1200 mm each and a thickness of 4 cm, and the material is magnetic concrete. For each road surface magnetic concrete cover, there are 3 drainage holes on each of the opposite sides, and when installing, ensure that the side with drainage holes is adjacent to the water accumulation diversion groove; for the holes on the same side, the centers of the holes are 300 mm apart, and the radius is 30 mm, with a total of 6 holes.

[0088] After road surface detection and energy analysis, the energy utilization situation of this system embodiment is shown in Table 1, the drainage performance is shown in Table 2, and the road lighting coverage and the continuity of charging supply are shown in Table 3.

[0089] Example 3 The dynamic wireless charging road provided in this embodiment is applied to the dynamic charging of new energy vehicles on highways. The road width is 3.75 m, the designed speed is 100 km / h, and the structure is shown in Figure 4 and 5 , and the specific construction process includes the following steps: 1) Normally complete the construction of the middle and lower layers of the road surface for special lanes of new energy vehicle charging in accordance with the "Construction and Acceptance Standards for Highway Pavement Engineering" GB 50306-2010, and embed drainage pipes in the roadbed. The radius of the drainage pipe is 50 cm, and the center of its cross-section is located 120 cm below the driving road surface.

[0090] 2) Excavate a rectangular foundation pit, and excavate water accumulation diversion channels on the front and rear sides along the driving direction respectively, connecting them to the drainage pipes; reserve pores at the connection with the green belt for subsequent wire connection. The concrete channel is square, with a side length of 1000 mm and a depth of 7.5 cm. The cross-section of the water accumulation diversion channel is rectangular, with a width of 75 mm and a length of 1000 mm.

[0091] 3) Lay the Litz wire according to the size standard to obtain the transmitting coil, and pull the coil wire through the reserved pores to the ground of the green belt at the green belt. The diameter of the Litz wire is 3 mm, and it is wound 12 turns; the coil is wound into a rectangle, with a length of 800 mm and a width of 600 mm.

[0092] 4) Repeat the construction of the underground working space structure, where the shortest distance between adjacent sides of adjacent underground working spaces is 1000 mm until reaching the end of the lane to be paved.

[0093] 5) Equip 1 integrated wind-solar-storage power supply facility for every 50 underground working spaces, and install it in the order of "main support pole - street lamp lighting equipment - solar panel - wind turbine - LED lamp - energy storage battery". Among them, for the wind turbine, there are 3 fan blades, each fan blade is 50 cm long, with a maximum diameter of 6 cm, and it is set at the top of the main support pole; for the street lamp lighting equipment, its power is 40 W, the working voltage is 12 V, and there are two, which are respectively set on both sides of the upper part of the main support pole; for the solar panel, 1 piece is installed on each of the two street lamp lighting equipment, and its laying plane forms an angle of 30° with the horizontal plane, with a length of 60 cm and a width of 40 cm; for the energy storage battery, its storage capacity is 325 kWh, and it is installed at the grounding place of the main support pole. Connect the circuit connections of each electronic component in the integrated wind-solar-storage power supply facility, and connect the energy storage battery to each transmitting coil unit through the reserved pores.

[0094] 6) Correctly install the precast road surface magnetic concrete cover on the top of the underground working space to form a flat driving road surface. For the road surface magnetic concrete cover, its shape is a cuboid, with a length and width of 1000 mm each and a thickness of 3 cm, and the material is magnetic concrete. For each road surface magnetic concrete cover, there are 3 holes on each side of the opposite sides. When installing, ensure that the side with holes is adjacent to the water accumulation diversion channel; for the holes on the same side, the centers of the holes are 250 mm apart, and the radius is 25 mm, with a total of 6 holes.

[0095] After pavement detection and energy analysis, the energy utilization of the system embodiment is shown in Table 1, the drainage performance is shown in Table 2, and the road lighting coverage and charging supply continuity are shown in Table 3.

[0096] Comparative Example 1 The pavement provided in this comparative example is applied to a highway with a lane width of 3.75 m and a design speed of 100 km / h. The specific steps are the same as those in Example 1. The difference from Example 1 is that there is no solar panel in the integrated wind-solar-storage power supply device.

[0097] After pavement detection and energy analysis, the energy utilization of the system in the comparative example is shown in Table 1, the drainage performance is shown in Table 2, and the road lighting coverage and charging supply continuity are shown in Table 3.

[0098] Comparative Example 2 The pavement provided in this comparative example is applied to a highway with a lane width of 3.75 m and a design speed of 100 km / h. The specific steps are the same as those in Example 1. The difference from Example 1 is that there is no wind turbine in the integrated wind-solar-storage power supply device.

[0099] After pavement detection and energy analysis, the energy utilization of the system in the comparative example is shown in Table 1, the drainage performance is shown in Table 2, and the road lighting coverage and charging supply continuity are shown in Table 3.

[0100] Comparative Example 3 The pavement provided in this comparative example is applied to a highway with a lane width of 3.75 m and a design speed of 100 km / h. The specific steps are the same as those in Example 1. The difference from Example 1 is that there is no energy storage battery in the integrated wind-solar-storage power supply device.

[0101] After pavement detection and energy analysis, the energy utilization of the system in the comparative example is shown in Table 1, the drainage performance is shown in Table 2, and the road lighting coverage and charging supply continuity are shown in Table 3.

[0102] Comparative Example 4 The pavement provided in this comparative example is applied to a highway with a lane width of 3.75 m and a design speed of 100 km / h. The specific steps are the same as those in Example 1. The difference from Example 1 is that the traditional pavement dynamic wireless charging facility layout method is adopted, there is no pavement magnetic concrete cover installation process, and instead, concrete pouring cover sealing is used.

[0103] After pavement detection and energy analysis, the energy utilization of the system in the comparative example is shown in Table 1, the drainage performance is shown in Table 2, and the road lighting coverage and charging supply continuity are shown in Table 3.

[0104] Comparative Example 5 The road surface provided in this comparative example is applied to a highway with a lane width of 3.75m and a design speed of 100km / h. The specific steps are the same as those in Example 1. The difference from Example 1 is that the spacing between adjacent underground working spaces is increased to 1600mm, and one wind, solar and storage integrated power supply facility is configured for every 100 underground working spaces.

[0105] After road surface testing and energy analysis, the system's proportional energy utilization is shown in Table 1, drainage performance is shown in Table 2, and road lighting coverage and charging supply continuity are shown in Table 3.

[0106] Table 1. Energy utilization test results of the embodiments and comparative examples

[0107] Among them: Energy self-consistency rate without energy storage / clean energy contribution ratio (%) = total daily power generation of the device / daily power demand (the device generates all electricity from clean energy, so the energy self-consistency rate is equal to the clean energy contribution ratio).

[0108] A higher energy self-consistency rate indicates less dependence on the external power grid; at 100%, it can operate completely independently of the external grid. The clean energy contribution ratio reflects the green performance of the device's energy structure. The above data are calculated without energy storage. Even without energy storage, full energy self-consistency can be achieved in some situations. With the addition of an energy storage system, self-consistent energy supply can be achieved in more weather conditions.

[0109] Table 2. Drainage performance test results of Examples and Comparative Examples

[0110] Table 3. Test results of road lighting coverage and charging supply continuity in the examples and comparative examples (According to common car models, the chassis receiving coil width is 600mm)

[0111] Charging continuity = charging current supply time / total driving time. This reflects how long the charging current is supplied during driving. A higher degree of continuity means less frequent current fluctuations, which promotes more stable operation of related components.

[0112] As can be seen from Examples 1-3, in terms of energy utilization, the pavement structure and energy system of the present invention can fully achieve self-consistent energy supply on windy days, and completely use clean energy without relying on the external power grid. At the same time, it can efficiently charge the energy storage battery; on sunny days, if the wind speed is small, the energy self-consistent supply can be maintained through dual-channel power supply of solar power generation and energy storage battery, greatly reducing the dependence on external traditional energy. At the same time, it has remarkable results in green carbon reduction. The annual carbon emission reduction of an integrated wind-solar-storage power supply facility is equivalent to that of a new energy vehicle (about 0.9-2.25 tons of CO2 emission reduction); after large-scale application on highways, the emission reduction effect is more excellent.

[0113] As can be seen from Examples 1-3, in terms of drainage performance, the drainage capacity of the pavement structure of the present invention can cope with all levels of rainfall under normal conditions (the lower limit of extremely heavy rainfall is 64 mm / h, which is much lower than the lowest value of 633.6 mm / h in the examples), and can also take into account the drainage needs of adjacent ordinary high-speed lanes.

[0114] As can be seen from the comparison between Example 1 and Comparative Example 1, the solar panels significantly reduce the dependence of the system on existing energy storage and external energy under windless conditions; on sunny days, by installing solar panels, the energy self-consistent ability is significantly increased from 0 to 33; after installing solar panels, the carbon emission reduction efficiency can be increased by 23.58%.

[0115] As can be seen from the comparison between Example 1 and Comparative Example 2, the wind turbine significantly improves the power generation effect of the system on windy days. By installing the wind turbine, the power generation capacity under the maximum wind speed condition can be increased from -2 kWh to 5.09 kWh, which is an important power supply component for the self-consistent operation of the device; after installing the wind turbine, the carbon emission reduction efficiency can be increased by 424.02%.

[0116] As can be seen from the comparison between Example 1 and Comparative Example 3, the energy storage battery can ensure that the excess produced energy is stored in time without being wasted, and can participate in power supply when the self-produced energy is insufficient, reducing the dependence on external energy. The capacity of the energy storage battery is large, and the energy can be dynamically adjusted for more than 100 days to cope with different seasonal climate situations.

[0117] As can be seen from the comparison between Example 1 and Comparative Example 4, the pavement magnetic concrete cover endows the pavement with strong drainage capacity, eliminating the need for additional drainage systems.

[0118] By comparing Example 1 with Comparative Example 5, it can be seen that the layout spacing of the underground working space determined by the implementation plan and the configuration plan of the integrated wind-solar-storage power supply facilities are reasonable, and the energy supply level matches the coil power consumption level; according to the general driving distance between vehicles on the highway, the lighting coverage is better able to meet the requirements; at the same time, the charging continuity is above 75%, showing a more excellent continuous charging performance compared with 33.3% in the comparative example.

[0119] Although the implementation plans of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and implementation manners. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily made. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to specific details.

Claims

1. A dynamic wireless charging road system, characterized in that, From top to bottom, it successively includes: a plurality of integrated wind-solar-storage power supply devices, a road surface, a plurality of underground working spaces, a water accumulation diversion trough, and a drainage pipe; wherein: The underground working space is a rectangular foundation pit, and a transmitting coil is laid at the bottom of the rectangular foundation pit; a cover plate is provided at the top of the rectangular foundation pit, and the cover plate is on the same plane as the road surface; The drainage pipe is arranged below the rectangular foundation pit; The water accumulation diversion trough is arranged at the side position of the bottom of the rectangular foundation pit and is communicated with the drainage pipe; a plurality of drainage holes are provided on the side of the cover plate adjacent to the water accumulation diversion trough; The integrated wind-solar-storage power supply device includes a wind turbine, a solar panel, a street lamp lighting device, a storage battery, and a main support rod; the wind turbine is arranged at the top of the main support rod, the street lamp lighting device is arranged at the upper part of the main support rod, the solar panel is arranged on the street lamp lighting device, the storage battery is arranged at the grounding position of the main support rod and is respectively communicated with the wind turbine, the solar panel, and the street lamp lighting device; the integrated wind-solar-storage power supply device is communicated with the transmitting coil through a wire.

2. The dynamic wireless charging road system according to claim 1, wherein One integrated wind-solar-storage power supply device is equipped for every 30 - 70 underground working spaces; the closest distance between the adjacent sides of two adjacent underground working spaces is 800 - 1200 mm.

3. The dynamic wireless charging road system according to claim 1, wherein The depth of the rectangular foundation pit is 5 - 10 cm; the center of the cross-section of the drainage pipe is 110 - 130 cm away from the road surface.

4. The dynamic wireless charging road system according to claim 1, characterized in that The closest distance between the inner side of the port at the bottom of the rectangular foundation pit where the water accumulation diversion trough is located and the edge of the transmitting coil is 100 - 150 mm.

5. The dynamic wireless charging road system according to claim 1, characterized in that, There are 3 - 5 drainage holes on the side of the cover plate adjacent to the water accumulation diversion trough.

6. The dynamic wireless charging road system according to claim 1, characterized in that For each underground working space, one water accumulation diversion trough is provided on each of the two opposite sides of the rectangular foundation pit.

7. The dynamic wireless charging road system according to claim 1, characterized in that The foundation pit is square, with a side length of 800 - 1200 mm; the transmitting coil is rectangular, with a length of 600 - 1000 mm and a width of 400 - 800 mm; the cross-section of the water accumulation diversion trough is rectangular, with a width of 50 - 100 mm and a length of 800 - 1200 mm.

8. The dynamic wireless charging road system according to claim 1, characterized in that The wind turbine has a total of 3 fan blades, each fan blade has a length of 40 - 60 cm, and the maximum diameter is 5 - 7 cm; the solar panel has a laying plane at an angle of 30 - 45° with the horizontal plane, and the lighting plane is rectangular, with a length of 50 - 70 cm and a width of 40 - 60 cm; the street lamp lighting device has a lighting power of 30 - 50 W and a working voltage of 10 - 16 V; the storage battery is installed at the grounding position of the main support rod, and the electricity storage capacity is 250 - 400 kWh.

9. The dynamic wireless charging road system according to claim 1, characterized in that In the integrated wind-solar-storage power supply equipment, LED lights are installed near the solar panel and the wind turbine respectively to display the working status and fault conditions of each component, facilitating fixed-point inspection and maintenance; the connecting wires in the integrated wind-solar-storage power supply equipment are laid inside each support rod, and the power facilities of the integrated wind-solar-storage power supply equipment are connected to the transmitting coil through underground wires.

10. A layout process for the dynamic wireless charging road system according to any one of claims 1-9, characterized in that, It includes the following steps: 1) Laying the basic road structure: Normally complete the construction of the lower, middle, and upper layers of the dedicated lane for dynamic wireless charging. When constructing the lower layer, reserve space for the drainage pipeline and lay the drainage pipeline; construct the middle and upper layers normally to form a flat road surface; 2) Constructing the underground working space: On the flat road surface of the upper road structure, excavate a rectangular foundation pit according to the design points of the underground working space, and excavate a water accumulation diversion groove on the side of the foundation pit, penetrating downward through the middle road structure to the drainage pipeline; reserve pores on the side of the rectangular foundation pit for subsequent wire connection; 3) Laying the transmitting coil at the bottom of the rectangular foundation pit and pulling out the transmitting coil wire through the pores reserved in step 2); 4) Repeating the construction of the underground working space structure: Repeat steps 2) and 3), and repeat the construction of the underground working space until reaching the end of the lane to be laid; 5) Installing the integrated wind-solar-storage power supply device; 6) Connecting the wire of the transmitting coil pulled out in step 3) to the integrated wind-solar-storage power supply device obtained in step 5); 7) Correctly installing the precast cover plate on the top of the underground working space to form a flat driving road surface, and the construction is completed.

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