Wireless charging fabricated pavement and construction method thereof

Abstract

The invention relates to a wireless charging fabricated pavement and a construction method thereof.The pavement comprises a prefabricated concrete pavement base plate, a prefabricated transmitting coil module, an asphalt mixture thin layer and a transmitting coil control system, and the prefabricated concrete pavement base plate is arranged on the bottom layer; the prefabricated transmitting coil module is installed on the prefabricated concrete pavement base plate and communicated with the prefabricated concrete pavement base plate to form a continuous structure, and the asphalt mixture thin layer is laid on the surface layer of the continuous structure to form a wireless charging pavement traveling layer. And the transmitting coil control system is connected with the precast concrete pavement substrate through a cable. Compared with the prior art, the invention has the advantages of rapid assembly, stable operation, convenient maintenance and the like of the wireless charging road surface.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of road engineering, in particular to a wireless charging assembly type pavement and a construction method thereof. BACKGROUND

[0002] With the rapid development of new energy vehicle industry, vehicle endurance and charging convenience have become the key factors restricting its popularization. Dynamic wireless charging technology realizes real-time charging during vehicle driving by integrating energy emitting devices in the pavement, which provides an effective way to solve this problem. At the same time, assembly type pavement is gradually widely used in road engineering due to its advantages such as fast construction, controllable quality and small impact on traffic, but there are many deficiencies in the combination of existing wireless charging pavement and assembly type pavement. The existing wireless charging pavement mostly uses site-poured concrete base, which has a long construction period and affects traffic, and the on-site installation precision of coil module is difficult to guarantee, which is easy to be damaged due to complex environment; the pavement structure splicing relies on traditional mechanical connection, and is not integrated with electrical connection design, the on-site connection process of cable is complicated and is easy to be affected by environment to cause poor contact, etc., and the mechanical connection is also easy to cause joint loosening under vehicle load, which affects the charging efficiency and pavement life.

[0003] In addition, the existing wireless charging coil is not optimized for pavement bearing characteristics, and the combination with the concrete base is simple, which is easy to displace, wear and even break under vehicle load, and the heat dissipation and anti-electromagnetic interference ability are insufficient, the multi-coil collaborative control is complex, and there are problems such as low magnetic field coupling efficiency; when the pavement fails, large-area excavation repair is needed, which has high cost and affects traffic, and the structure lacks modular design, which is difficult to flexibly expand coil module or adjust the layout, and has poor adaptability. Therefore, it is an urgent need to develop a wireless charging assembly type pavement with fast construction, stable structure, reliable electrical connection and convenient maintenance, which is of great significance to break through the technical bottleneck of existing technology and promote the engineering application of dynamic wireless charging technology. SUMMARY

[0004] The purpose of the present application is to provide a wireless charging assembly type pavement and a construction method thereof which can realize fast assembly.

[0005] The purpose of the present application can be realized by the following technical solutions:

[0006] A wireless charging assembly type pavement, comprising a precast concrete pavement base plate, a precast transmitting coil module, an asphalt mixture thin layer and a transmitting coil control system, the precast concrete pavement base plate is placed on the bottom layer, the precast transmitting coil module is installed on the precast concrete pavement base plate, and the precast concrete pavement base plate and the precast transmitting coil module are connected to form a continuous structure, the asphalt mixture thin layer is laid on the surface layer of the continuous structure to form a wireless charging pavement driving layer, and the transmitting coil control system is connected with the precast concrete pavement base plate through a cable.

[0007] Further, the surface of the prefabricated concrete pavement base plate is provided with mounting slots, which longitudinally penetrate the entire prefabricated concrete pavement base plate along the driving direction and are provided with bolt fixing positions inside, for fixing the prefabricated transmitting coil module on the mounting slots by bolts.

[0008] Further, the prefabricated concrete pavement base plate is provided with a plurality of cable channels for embedding connecting cables, part of which are main channels and the rest are auxiliary channels, the main channels are arranged along the length direction of the prefabricated concrete pavement base plate, and the auxiliary channels are perpendicular to the main channels and communicate with the ends of the mounting slots.

[0009] Further, the prefabricated concrete pavement base plate is provided with a plurality of plates, and each end joint of adjacent prefabricated concrete pavement base plates is provided with a mechanical fixing and electrical conduction connecting component, which is connected with the main channel of the adjacent prefabricated concrete pavement base plate.

[0010] Further, the mechanical fixing and electrical conduction connecting component includes a parent structure, a connecting bolt and a cover plate, the side of the parent structure is provided with a hollow to connect with the cable channel, the inside of the parent structure is provided with a groove for reserving a cable plug to connect the cables of adjacent prefabricated concrete pavement base plates, the connecting bolt is used to connect the parent structures of adjacent prefabricated concrete pavement base plates, and the cover plate is installed on the parent structure and its top surface is flush with the top surface of the prefabricated concrete pavement base plate.

[0011] Further, a plurality of lifting and leveling components are provided at each corner and midpoint of the long side of the prefabricated concrete pavement base plate, the inside of the lifting and leveling component is provided with a thread for lifting and leveling operation by adjusting bolts, so as to control the elevation of the prefabricated concrete pavement base plate by controlling the screwing depth.

[0012] Further, the prefabricated transmitting coil module is a multi-layer structure, and the multi-layer structure is bonded by epoxy resin material, wherein the multi-layer structure includes a rubber bottom plate, a glass fiber reinforced epoxy base plate, a ferrite plate, an electromagnetic coil, a rubber cover plate and a glass fiber reinforced epoxy top plate from bottom to top.

[0013] Further, a plurality of prefabricated transmitting coil modules are installed on each prefabricated concrete pavement base plate, and the plurality of prefabricated transmitting coil modules are connected in series by continuous arrangement.

[0014] Further, the transmitting coil control system comprises a coil control module and a system control assembly connected therewith, the coil control module is installed at a road side or embedded in the prefabricated concrete pavement base plate, a coupling mechanism matching module is arranged in the transmitting coil control system, for controlling a magnetic field of each transmitting coil, and a control box in the system control assembly is connected with each prefabricated transmitting coil module through a power grid, for performing power conversion, rectification and voltage regulation control.

[0015] The application further provides a construction method of the wireless charging assembled pavement, comprising the following steps:

[0016] A plurality of prefabricated concrete pavement base plates are poured and spliced, wherein the hoisting and leveling component and the mechanical fixing and electrical conduction connecting component are embedded, the installation groove is formed by a mold, and the cable channel is embedded by a PVC pipe;

[0017] A plurality of prefabricated transmitting coil modules are made, the prefabricated transmitting coil modules are arranged in series after being connected in series, and the prefabricated transmitting coil modules are fixed on the installation groove of the prefabricated concrete pavement base plate by bolts;

[0018] The cables are passed through the reserved cable channels, the prefabricated transmitting coil modules are connected, and the gaps between the prefabricated transmitting coil modules in the installation groove are filled with epoxy resin until the prefabricated transmitting coil modules are flush with the prefabricated concrete pavement base plate;

[0019] The prefabricated concrete pavement base plate provided with the prefabricated transmitting coil module is installed on the top surface of the road base layer by hoisting, the height of the prefabricated concrete pavement base plate is adjusted by the hoisting and leveling component, the top elevations of the adjacent prefabricated concrete pavement base plates are aligned at the joint, and the adjacent prefabricated concrete pavement base plates are connected by the connecting pins;

[0020] A thin layer of asphalt mixture is laid on the top surface of the continuous structure formed by the prefabricated concrete pavement base plate and the prefabricated transmitting coil module, and the cables in the adjacent prefabricated concrete pavement base plates are connected or the cable ends are led out and connected to the transmitting coil control system for networking.

[0021] Compared with the prior art, the application has the following beneficial effects:

[0022] (1) The prefabricated transmitting coil module is arranged on the prefabricated concrete pavement base plate, and the transmitting coil is controlled by the transmitting coil control system to control the electric energy, and the wireless charging assembled pavement can be quickly assembled by prefabricating each part structure, and the construction efficiency is improved.

[0023] (2) The mounting groove, bolt fixing position, mechanical fixing-electrically conductive connecting component and lifting-leveling component provided on the prefabricated concrete pavement base plate can improve the reliability of the structure between the prefabricated concrete pavement base plate and the prefabricated transmitting coil module and the installation efficiency of the wireless charging pavement, and realize stable operation and convenient maintenance.

[0024] (3) The prefabricated concrete pavement base plate of the application is provided with a cable channel for laying cables, and the mechanical fixing-electrically conductive connecting component can improve the structural and electrical connection reliability.

[0025] (4) The prefabricated assembly construction of the wireless charging pavement is realized, which greatly shortens the construction period and reduces the interference to traffic; through the integrated mechanical fixing and electrical connection design, the overall performance of the pavement structure and the cable connection reliability are improved; the optimized prefabricated transmitting coil module structure and transmitting coil control system ensure the charging efficiency and stability; the modular design facilitates the later maintenance and function expansion, and significantly improves the engineering applicability of the wireless charging pavement. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a schematic diagram of the wireless charging assembly pavement of the application;

[0027] Figure 2 is a schematic diagram of the prefabricated transmitting coil module of the application;

[0028] Figure 3 is a top view of the mechanical fixing-electrically conductive connecting component of the application;

[0029] Figure 4 is a wireless charging assembly pavement containing multiple prefabricated concrete base plates of the application;

[0030] Figure 5 is a construction method flow chart of the wireless charging assembly pavement of the application. DETAILED DESCRIPTION

[0031] The application will be described in detail below in combination with the drawings and specific embodiments. The embodiments are implemented on the basis of the technical solutions of the application, and detailed implementation methods and specific operation processes are given, but the protection scope of the application is not limited to the following embodiments.

[0032] Unless otherwise defined, technical terms and scientific terms used in the present application shall have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. The terms "a", "an", "the" and similar referents in the context of describing the application are to be construed to be open-ended, meaning one or more, unless otherwise noted. The terms "comprising", "comprise", "comprised of", "comprise of", "containing", "contain", "contains" and any variations thereof are intended to cover a non-exclusive inclusion such that a process, method, system, product or apparatus that comprises a list of steps or units (elements) not only comprises those steps or units but can also comprise other steps or units not expressly listed or inherent to such process, method, system, product or apparatus. The terms "connected", "coupled", "linking", and similar referents in the context of this application are to be construed as not necessarily present a direct and instant connection or coupling, but can also include an indirect and / or a direct coupling or connection. The term "plurality" means two or more. The term "and / or" describes association between associated objects, indicating that there can be three relationships, for example, "A and / or B" can mean that A exists alone, A and B exist together, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects. The terms "first", "second", "third", and the like merely distinguish similar objects, and do not represent a specific order for the objects.

[0033] Embodiment 1

[0034] The embodiment provides a wireless charging assembly pavement to solve the problems of low construction efficiency, insufficient structural and electrical connection reliability, poor coil module adaptability and high maintenance cost of the existing wireless charging pavement, and realizes rapid assembly, stable operation and convenient maintenance of the wireless charging pavement. Specifically, as shown in the figure, the pavement comprises a prefabricated concrete pavement base plate 1, a prefabricated transmitting coil module 2, an asphalt mixture thin layer 3 and a transmitting coil control system 4. Figure 1

[0035] ​The prefabricated concrete pavement base plate 1 is the core bearing and installation foundation, the thickness of which is 15-30 cm, the size is 400 cm long and 350 cm wide, and the inside is configured with single or double layers of double-direction HRB400 grade steel bars (the upper layer of steel bars is spaced 15 cm, and the lower layer of steel bars is spaced 20 cm) to ensure the structural strength; the surface is pre-provided with accurate installation slots 11, which penetrate the prefabricated concrete pavement base plate 1 along the longitudinal direction of the driving direction, the depth is 2-3 cm, the transverse size (101 cm x 41 cm) is longer than the outer diameter of the electromagnetic coil by 1-5 mm in length and width, which is used to provide a flat and stable installation plane for the prefabricated transmitting coil module 2, and four M12 stainless steel fixing bolt positions are reserved. The prefabricated concrete pavement base plate 1 is also pre-provided with six Φ50 mm PVC cable channels 12, including four main channels connecting adjacent mechanical fixing-electrically conductive connecting components 14 and two auxiliary channels communicating with the head and tail of the installation slots 11, which facilitate the embedded connection cable, wherein the main channels are also arranged below the steel bar layer along the length direction of the prefabricated concrete pavement base plate 1, and the auxiliary channels are perpendicular to the main channels; six hoisting-leveling components 13 are embedded at the four corners and the midpoint of the long side of the prefabricated concrete pavement base plate 1, which are made of Q235 steel, have threads inside, are M50 in specification, and have a diameter of 4-6 cm, and are fixed between the double-layer steel bar mesh through short steel bars, which can be screwed into the hoisting components for hoisting, and can be screwed into the leveling bolts and the depth of the screwing is adjusted to control the elevation of the prefabricated concrete pavement base plate 1 to ensure the installation accuracy. One set of mechanical fixing-electrically conductive connecting components 14 is arranged at the joint of the prefabricated concrete pavement base plate 1, as shown in Figure 3 The mechanical fixing-electrically conductive connecting component 14 is composed of a parent structure, a connecting bolt and a cover plate, the parent structure is made of cast iron and has a cuboid structure (30 cm long x 15 cm wide x 10 cm high), is welded to the steel bar mesh inside the prefabricated concrete pavement base plate 1 through four Φ10 mm short steel bars, the side hole (Φ50 mm) is connected with the cable channel 12, the internal recess (depth 8 cm) reserves the cable plug head to realize the quick connection of the cables of adjacent prefabricated concrete pavement base plates 1, the connecting bolt is H-shaped (material 45 steel, length 40 cm, can withstand a transverse tensile force of not less than 50 kN after being inserted into the recess of the adjacent parent structure), dumbbell-shaped or mallet-shaped, and is matched with the recess of the adjacent parent structure to realize mechanical fixing, and the cover plate is made of steel plate (thickness 5 mm), is sprayed with anti-rust paint on the surface, is installed on the parent structure and has a top surface flush with the top surface of the prefabricated concrete pavement base plate 1, and can prevent foreign matters from entering the recess.

[0036] As shown in Figure 2 The prefabricated transmitting coil module 2 has a six-layer composite structure, the size is 100 cm x 40 cm x 2 cm, and from bottom to top, it is composed of:

[0037] A rubber bottom plate 21: thickness 3 mm, which is used as a buffer layer between the prefabricated concrete pavement base plate 1 and the transmitting coil to avoid the fracture of the transmitting coil base plate;

[0038] Glass fiber reinforced epoxy substrate 22: thickness 2mm, tensile strength ≥ 300MPa, as the carrier layer of the transmitting coil;

[0039] Ferrite plate 23: thickness 5mm, permeability μ ≥ 2000, covering part of the transmitting coil area, so that the magnetic induction lines are more concentrated;

[0040] Electromagnetic coil 24: Φ8mm Litz wire is wound 12 turns to form a round rectangular anti-resonance coil, with an outer diameter of 100cm x 40cm, and the resonant frequency is tested to be 85kHz;

[0041] Rubber cover plate 25: thickness 3mm, same material as rubber bottom plate 21;

[0042] Glass fiber reinforced epoxy top plate 26: thickness 2mm, same material as precast concrete pavement substrate 1.

[0043] Each layer is bonded as a whole by epoxy resin material (shear strength ≥ 15MPa), and the overall compressive strength after curing is ≥ 20MPa; wherein the electromagnetic coil 24 adopts a round rectangular anti-resonance coil, with an outer diameter length and width of 100cm and 40cm, the number of turns is not less than 10 turns, the cable is selected from Litz wire, and the resonant frequency is controlled between 80-90kHz to ensure efficient energy transmission. After multiple precast transmitting coil modules 2 are spliced and placed in the precast concrete pavement substrate 1 installation slot 11, they are fixed by bolts, and the gaps are filled with soft glue to ensure the structural integrity.

[0044] The asphalt mixture thin layer 3 is 3cm-10cm thick, and is laid on the surface after the continuous structure is formed by mechanically fixing and electrically conducting the connection member 14 of multiple precast concrete pavement substrates 1 and precast transmitting coil modules 2, to form a complete wireless charging pavement driving layer.

[0045] The transmitting coil control system 4 includes a coil control module 41 and a system control component 42. The coil control module 41 is installed on the roadside or embedded in the precast concrete pavement substrate 1, and contains a coupling mechanism matching module inside, which is used to independently control the magnetic field of each transmitting coil; the system control component 42 usually adopts a control box, which is connected with the power grid and each precast transmitting coil module 2, and has the functions of power conversion, rectification and voltage regulation, etc., to realize efficient management and distribution of electric energy.

[0046] Through the above splicing and installation of multiple precast concrete pavement substrates 1 and multiple precast transmitting coil modules 2, and laying asphalt mixture thin layer 3 thereon, and finally connecting the network by the transmitting coil control system 4 for electric energy control, a multiple wireless charging assembly pavement as shown in Figure 4 is obtained.

[0047] Example 2

[0048] The wireless charging assembly type pavement provided in Embodiment 1, the present embodiment provides a construction method for the wireless charging assembly type pavement, as shown in the figure, the method comprises the following steps: Figure 5

[0049] Step 1. Pouring the prefabricated concrete pavement base plate 1 and transporting it to the construction site, pre-burying the lifting-leveling component 13 and the mechanical fixing-electrically conducting connecting component 14 (welded to the internal reinforcement net fixing), installing the groove 11 through the mold structure, and using PVC pipe to pre-bury the cable passage 12.

[0050] During construction, the four-corner lifting-leveling component 13 is hoisted to the top surface of the road base layer (which has been compacted and has a bearing capacity of ≥150kPa), the lifting-leveling component 13 at the midpoint of the long side is screwed into the M50 leveling bolt, the elevation of the top surface of the prefabricated concrete pavement base plate 1 is adjusted to the design elevation (error ≤±2mm), and the top surface of the joint between adjacent prefabricated concrete pavement base plates 1 is ensured to be flush.

[0051] Step 2. Make a plurality of prefabricated transmitting coil modules 2, connect the first, second, …, Nth in series after continuous arrangement, and fix them in the installation groove 11 of the prefabricated concrete pavement base plate 1 through bolts.

[0052] Arrange 4 groups of prefabricated transmitting coil modules 2 in series in the installation groove 11 of the single prefabricated concrete pavement base plate 1, fix them through the pre-set bolts in the groove, and fill the gap between the modules with epoxy resin to flush with the top surface of the prefabricated concrete pavement base plate 1.

[0053] Step 3. Thread the cable into the reserved cable passage 12, connect it with the first and Nth prefabricated transmitting coil modules 2 respectively, and fill the gap between the prefabricated transmitting coil modules 2 with epoxy resin to flush with the prefabricated concrete pavement base plate 1.

[0054] Thread the copper core cable with a cross-sectional area of 10mm 2 into the auxiliary cable passage, connect the terminals of the first and fourth groups of prefabricated transmitting coil modules 2 at both ends (use plug-in connectors, contact resistance ≤5mΩ), and thread the main cable with a cross-sectional area of 25mm 2 into the main cable passage to connect the prefabricated transmitting coil modules 2 of adjacent prefabricated concrete pavement base plates 1.

[0055] Step 4. Hoist the prefabricated concrete pavement base plate 1 with prefabricated transmitting coil modules 2 to the top surface of the road base layer, adjust the elevation through the lifting-leveling component 13 to align the joint between adjacent plates, use the connecting pin to fix adjacent plates and connect the internal cable, or lead out the cable end to connect to the transmitting coil control system 4 networking (the coils are connected to the power grid in series-parallel combination).

[0056] ​The H-shaped connecting plug is inserted into the groove in the female structure of the adjacent precast concrete pavement base plate 1 to complete mechanical fixation; at the same time, the main cable is connected through the plug-in head in the groove in the female structure to realize electrical conduction and form a continuous coil array (4 precast concrete pavement base plates 1, 16 groups of precast transmitting coil modules 2, connected in a "4 in series and 6 in parallel" mode).

[0057] Step 5. A thin layer 3 of asphalt mixture is laid on the top surface of the adjacent precast concrete pavement base plate 1, and the transmitting coil control system 4 is connected to the power grid to complete the construction.

[0058] A 5cm-thick AC-13 asphalt mixture thin layer 3 is laid on the top surface of the precast concrete pavement base plate 1, and the surface flatness after rolling and forming is ≤3mm. A system control box (size 80cm×60cm×40cm) is arranged on the roadside, and an internal rectifier (input AC380V, output DC400V), an inverter (output frequency 85kHz) and a PLC controller are integrated; the coil control module 41 is embedded in the reserved groove on the side edge of the precast concrete pavement base plate 1 and connected to the system control box and the precast transmitting coil module 2 through a cable.

[0059] Step 6: Connect the system control box to the municipal power grid, and after debugging, the coil array can output a magnetic field strength of 50-100μT to realize dynamic charging of electric buses, electric vehicles and other vehicles (receiving power 5kW) equipped with receiving coils, and the energy transmission efficiency is ≥85%.

[0060] If the above functions are realized in the form of software function units and sold or used as independent products, they can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application essentially or the parts that contribute to the prior art or parts of the technical solutions can be embodied in the form of software products, which are stored in a storage medium and include a number of instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in various embodiments of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, and various program code storage media.

[0061] Those skilled in the art will appreciate that embodiments of the present application can be readily used as software, hardware, or a combination of software and hardware. In a software embodiment, the methods can be tangibly embodied in a machine-readable storage medium having stored thereon instructions that can be used to program a computer to perform any of the methods. The software implementation can be initialized by loading and executing a set of instructions arranged to perform one of the methods into the computer's memory. Alternatively, hard-wired circuitry can be used in place of, or in combination with, software instructions. Thus, the

[0062] The present application is described in reference to the drawings using a flowchart and / or a block diagram of the method, apparatus (system) and computer program product according to embodiments of the application. It will be understood that each block of the flowchart and / or block diagram, and combinations of blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processing device or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart and / or block diagram block or blocks. Figure 1 Figure 1

[0063] These computer program instructions can also be stored in a computer- readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instructions which implement the flowchart and / or block diagram block or blocks. Figure 1 Figure 1

[0064] These computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the flowchart and / or block diagram block or blocks. Figure 1 Figure 1

[0065] While preferred embodiments of the application have been described, those skilled in the art will appreciate that additional modifications and variations to the preferred embodiments are possible in light of the above teachings. It is, therefore, intended that the appended claims be construed to cover all such modifications and variations as fall within the true spirit and scope of the present application. ​​​​​​

[0066] It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application cover modifications and variations of this application provided they come within the scope of the appended claims and their equivalents.

Claims

1. A wireless charging modular pavement, characterized by, The application relates to a prefabricated concrete pavement base plate (1), a prefabricated transmitting coil module (2), an asphalt mixture thin layer (3) and a transmitting coil control system (4), the prefabricated concrete pavement base plate (1) is arranged on a bottom layer, the prefabricated transmitting coil module (2) is arranged on the prefabricated concrete pavement base plate (1) and is connected with the prefabricated concrete pavement base plate (1) to form a continuous structure, the asphalt mixture thin layer (3) is arranged on a surface layer of the continuous structure to form a wireless charging pavement driving layer, and the transmitting coil control system (4) is connected with the prefabricated concrete pavement base plate (1) through a cable.

2. The wireless charging modular pavement of claim 1, wherein, The prefabricated concrete pavement base plate (1) is provided with an installation groove (11) on the surface, the installation groove (11) is longitudinally arranged through the whole prefabricated concrete pavement base plate (1) along a driving direction and is provided with a bolt fixing position in the installation groove (11), and the prefabricated transmitting coil module (2) is fixed on the installation groove (11) by bolts.

3. The wireless charging modular pavement of claim 2, wherein, The prefabricated concrete pavement base plate (1) is internally provided with a plurality of cable channels (12) for pre-embedded connecting cables, part of the cable channels (12) are main channels, and the rest are auxiliary channels; the main channels are arranged along the length direction of the prefabricated concrete pavement base plate (1); and the auxiliary channels are perpendicular to the main channels and are connected with the installation groove (11) at the head and tail ends.

4. The wireless charging modular pavement of claim 3, wherein, The prefabricated concrete pavement base plate (1) is provided with a plurality of mechanical fixing and electrical conduction connecting components (14) at the end joints of adjacent prefabricated concrete pavement base plates (1); and the mechanical fixing and electrical conduction connecting components (14) are connected with the main channels.

5. The wireless charging modular pavement of claim 4, wherein, The mechanical fixing and electrical conduction connecting component (14) comprises a parent structure, a connecting bolt and a cover plate; the parent structure is provided with a hollow on the side edge to be connected with the cable channel (12); the parent structure is internally provided with a groove for reserving a cable plug head to be connected with the cable of the adjacent prefabricated concrete pavement base plate (1); the connecting bolt is used to connect the parent structure of the adjacent prefabricated concrete pavement base plate (1); and the cover plate is arranged on the parent structure and the top surface of the cover plate is flush with the top surface of the prefabricated concrete pavement base plate (1).

6. The wireless charging modular pavement of claim 1, wherein, A plurality of lifting and leveling components (13) are arranged at the corners and the middle points of the long edges of the prefabricated concrete pavement base plate (1); the lifting and leveling components (13) are internally provided with threads to be lifted and leveled by adjusting bolts, so that the elevation of the prefabricated concrete pavement base plate (1) is controlled by controlling the screwing depth.

7. The wireless charging modular pavement of claim 1, wherein, The prefabricated transmitting coil module (2) is a multilayer structure, and the multilayer structure is bonded by using an epoxy resin material; the multilayer structure comprises, from bottom to top, a rubber bottom plate (21), a glass fiber reinforced epoxy base plate (22), a ferrite plate (23), an electromagnetic coil (24), a rubber cover plate (25) and a glass fiber reinforced epoxy top plate (26).

8. The wireless charging modular pavement of claim 1, wherein, A plurality of prefabricated transmitting coil modules (2) are arranged on each prefabricated concrete pavement base plate (1), and the plurality of prefabricated transmitting coil modules (2) are connected in series after being arranged in series.

9. The wireless charging modular pavement of claim 1, wherein, The transmitting coil control system (4) comprises a coil control module (41) and a system control component (42) connected thereto, the coil control module (41) is installed on the roadside or embedded in the precast concrete pavement base plate (1), a coupling mechanism matching module is arranged inside the transmitting coil control system (4) for controlling the magnetic field of each transmitting coil, and the control box inside the system control component (42) is connected with each precast transmitting coil module (2) through the power grid for power transformation, rectification, voltage regulation and control.

10. A construction method of a wireless charging modular pavement according to any one of claims 1 to 9, characterized in that, The method comprises the following steps: Pouring a plurality of precast concrete pavement base plates (1) and splicing, wherein the hoisting-leveling component (13) and the mechanical fixing-electrically conductive connecting component (14) are embedded, the installation groove (11) is constructed by a mold, and the cable channel (12) is embedded by a PVC pipe; A plurality of precast transmitting coil modules (2) are made, all the precast transmitting coil modules (2) are arranged in series after being arranged in series, and are fixed on the installation groove (11) of the precast concrete pavement base plate (1) by bolts; The cables are passed through the reserved cable channel (12), all the precast transmitting coil modules (2) are connected, and the gaps between the precast transmitting coil modules (2) in the installation groove (11) are filled with epoxy resin until they are flush with the precast concrete pavement base plate (1); The precast concrete pavement base plate (1) provided with the precast transmitting coil module (2) is installed on the top surface of the road base layer by hoisting, the height of the precast concrete pavement base plate (1) is adjusted by the hoisting-leveling component (13), so that the top elevations of adjacent precast concrete pavement base plates (1) are aligned at the joint, and then the adjacent precast concrete pavement base plates (1) are connected by the connecting pins; A thin layer of asphalt mixture (3) is laid on the top surface of the continuous structure formed by the precast concrete pavement base plate (1) and the precast transmitting coil module (2), and the cables inside the adjacent precast concrete pavement base plates (1) are connected, or the cable ends are led out and connected to the transmitting coil control system (4) for networking.

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