CN107938462B

CN107938462B - Wireless charging road

Info

Publication number: CN107938462B
Application number: CN201711292194.7A
Authority: CN
Inventors: 蔡乾; 王中照; 宋久福; 刘叶峰; 储开龙
Original assignee: Suzhou Jk Energy Technology Co ltd
Current assignee: Suzhou Jingkong Energy Technology Co ltd
Priority date: 2017-12-08
Filing date: 2017-12-08
Publication date: 2020-05-19
Anticipated expiration: 2037-12-08
Also published as: CN107938462A

Abstract

A wireless charging highway comprises a pavement system and a wireless charging system, wherein the pavement system comprises a resin layer, a solar cell panel layer, a pavement layer and a roadbed layer from top to bottom, the pavement system is divided into a plurality of wireless charging lanes according to the width of the pavement of the highway, and the wireless charging system is arranged at the central line position of each lane and embedded in the solar cell panel layer and the pavement layer; the wireless charging system comprises a power supply grid and a wireless charging panel, wherein the power supply grid is arranged below the wireless charging panel, and the wireless charging panel is an array formed by a plurality of rectangular wireless charging panels with arc-shaped convex surfaces and used for transmitting electric energy; compared with the prior art, the wireless charging road provided by the invention has the advantages that the distance between the electric energy transmitting end and the electric energy receiving end of the electric vehicle wireless charging road is shortened as much as possible, the energy loss is small, the energy transmission efficiency is high, the charging speed is high, a large amount of electric energy can be charged in a short time, and the wireless charging road has the advantages of simplicity in maintenance, long service life and the like.

Description

Wireless charging road

Technical Field

The invention belongs to the field of wireless charging, and particularly relates to a wireless charging road.

Background

The electric automobile is an automobile which takes a vehicle-mounted power supply as power and drives wheels by a motor to run, and meets various requirements of road traffic and safety regulations. Electric automobile uses the battery to provide kinetic energy, compares with traditional diesel engine car and has energy saving, noise low, advantage such as power is strong, simple structure, maintenance cost hang down: it has no waste gas produced by internal combustion engine and no exhaust pollution, and is beneficial to environmental protection and air cleaning, and the pollution caused directly is almost zero.

When the storage battery is insufficient in power, the storage battery needs to be charged in time, the current mainstream charging mode adopts a wired charging pile and charger to charge the electric vehicle, the wired charging mode is adopted, the operation is troublesome, part of charging devices are heavy and labor-consuming, the large potential safety hazard is usually caused, electric leakage and electric shock accidents are easy to occur, the maintenance is troublesome, the fault rate is high, the current wireless charging technology is gradually mature, the wireless charging mode is adopted to charge the electric vehicle, the convenience and quickness are realized, the safety is improved, the maintenance is convenient, and the fault rate is reduced.

With the use of electric vehicles increasing, the problem of charging electric vehicles is a problem which puzzles people for a long time, and how to flexibly charge electric vehicles in real time to prolong the service mileage of the electric vehicles becomes a technical problem to be solved urgently in society. The wireless charging technology utilizes the electromagnetic induction principle to charge the battery of the electric automobile, and is a direction and idea for solving the charging problem of the current electric automobile in the future.

One of the current problems is that the distance between an electric energy transmitting end and a receiving end of the conventional electric vehicle wireless charging road is not shortened as much as possible, the energy loss is large, the energy transmission efficiency is low, and the charging speed is slow.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a wireless charging road which comprises a road surface system and a wireless charging system, wherein the road surface system comprises a resin layer, a solar cell panel layer, a road surface layer and a road base layer from top to bottom, the road surface system is divided into a plurality of wireless charging lanes according to the width of the road surface, and the wireless charging system is arranged at the center line position of each lane and embedded in the solar cell panel layer and the road surface layer; the wireless charging system comprises a power supply grid and a wireless charging panel, wherein the power supply grid is arranged below the wireless charging panel, and the wireless charging panel is an array formed by a plurality of rectangular wireless charging panels with arc-shaped convex surfaces and used for transmitting electric energy.

The power supply grid comprises a power supply source, an energy storage power station and grid exchange equipment, wherein the grid exchange equipment comprises an optical coupling isolation circuit, a shaping circuit, a differential circuit, a power conversion circuit and a full-bridge circuit; the optical coupling isolation circuit and the differential circuit are respectively connected with the shaping circuit; the power conversion circuit is respectively connected with the shaping circuit and the full-bridge circuit; the power conversion circuit is implemented by using IR 211O; the full-bridge circuit is realized by adopting MOSFET tubes.

And the electric energy generated by the solar cell panel layer is merged into a power supply.

Preferably, the wireless charging highway, wherein: the solar cell panel layer comprises a metal grid and a polycrystalline silicon solar cell panel embedded in the metal grid.

Preferably, the wireless charging highway, wherein: and the surface of the polycrystalline silicon solar cell panel is attached with an UHMWPE ultra-high molecular weight polyethylene plate.

Preferably, the wireless charging highway, wherein: expansion joints are arranged in the metal grids.

Preferably, the wireless charging highway, wherein: the road base layer is an earth-rock roadbed subjected to waterproof treatment.

Preferably, the wireless charging highway, wherein: the pavement layer is of an asphalt stone substructure or a concrete stone substructure.

Preferably, the wireless charging highway, wherein: the wireless charging panel is provided with a drainage channel which is flush with the road surface every 5-10 meters.

Preferably, the wireless charging highway, wherein: the resin layer is prepared by adding 4-6% of dibenzoyl peroxide initiator and nano SiO into MMA resin₂Silica sol with the content of more than 40 percent is sprayed on a clean road surface by a large airless sprayer.

Has the advantages that:

compared with the prior art, the wireless charging road provided by the invention has the advantages that the distance between the electric energy transmitting end and the electric energy receiving end of the electric vehicle wireless charging road is shortened as much as possible, the energy loss is small, the energy transmission efficiency is high, the charging speed is high, a large amount of electric energy can be charged in a short time, and the wireless charging road has the advantages of simplicity in maintenance, long service life and the like.

Drawings

Fig. 1 is a fragmentary schematic view of a wirelessly charged highway traffic lane.

Fig. 2 is a schematic cross-sectional view of a wireless charging highway.

Fig. 3 is a schematic diagram of a vehicle traveling on a wireless charging highway.

Fig. 4 is a schematic diagram of a power supply grid configuration.

Detailed Description

The invention is further described with reference to the following figures and specific embodiments.

Example 1

As shown in fig. 2, a wireless charging road comprises a road surface system and a wireless charging system, wherein the road surface system comprises a resin layer 8, a solar cell panel layer 5, a road surface layer 6 and a road base layer 7 from top to bottom, the road surface system is divided into a plurality of wireless charging lanes according to the width of a road surface, and the wireless charging system is arranged at the central line position of each lane and embedded in the solar cell panel layer 5 and the road surface layer 6; wherein: the wireless charging system comprises a power supply grid 4 and a wireless charging panel 1, wherein the power supply grid 4 is arranged below the wireless charging panel 1, and the wireless charging panel 1 is an array formed by a plurality of rectangular wireless charging panels with arc-shaped convex surfaces and used for transmitting electric energy.

The power supply grid 4 comprises a power supply source, an energy storage power station and grid exchange equipment, wherein the grid exchange equipment comprises an optical coupling isolation circuit, a shaping circuit, a differential circuit, a power conversion circuit and a full-bridge circuit; the optical coupling isolation circuit and the differential circuit are respectively connected with the shaping circuit; the power conversion circuit is respectively connected with the shaping circuit and the full-bridge circuit; the power conversion circuit is implemented by using IR 211O; the full-bridge circuit is realized by adopting MOSFET tubes; the power grid structure shown in fig. 4 is formed, and high-power, high-frequency and high-efficiency transmission of electric energy is realized.

The electric energy generated by the solar cell panel layer 5 is merged into a power supply.

As shown in fig. 1 and 2, the solar cell panel layer 5 includes a metal grid 3 and a polycrystalline silicon solar cell panel assembly 2 embedded in the metal grid, and the metal grid 3 plays a role in protecting and fixing the polycrystalline silicon solar cell panel assembly 2, and is also convenient for arrangement of a power grid line; the polycrystalline silicon solar panel assembly 2 comprises a polycrystalline silicon solar panel 202 and an UHMWPE ultrahigh molecular weight polyethylene plate 201 attached to the surface of the polycrystalline silicon solar panel 202, and the UHMWPE ultrahigh molecular weight polyethylene plate 201 has a protection effect on the polycrystalline silicon solar panel 202 due to excellent wear resistance in a natural environment temperature range and can provide sufficient friction force for a vehicle.

Be equipped with expansion joint 301 in the metal mesh 3, can guarantee that wireless charging highway is indeformable under frequent expend with heat and contract with cold, does not ftracture.

The roadbed 7 is an earth-rock roadbed which is subjected to waterproof treatment.

The pavement layer 6 is of an asphalt stone structure.

The road shoulder 9 is a road shoulder of a wireless charging road traffic lane.

The wireless charging panel 1 is an array formed by a plurality of rectangular wireless charging panels with arc-shaped convex surfaces, and a plurality of annular transmitting coils 101 are arranged on the wireless charging panel 1 and used for transmitting electric energy; the wireless charging board is provided with a drainage groove 102 which is flush with the road surface every 10 meters.

Adding 6 percent of dibenzoyl peroxide initiator and nano SiO into MMA resin₂Uniformly mixing silica sol with the content of more than 50% at normal temperature, and spraying the silica sol on the surfaces of a clean solar cell panel layer and a wireless charging panel by adopting a large airless sprayer produced by Graco company to form a resin layer, wherein the resin layer has the effects of resisting abrasion, preventing water seepage and prolonging the service life of a wireless charging road; the addition of silica sol can improve the wear resistance of the resin layer by more than 20 percent.

Example 2

As shown in fig. 3, when the electric vehicle travels on a wireless road surface, the electric vehicle should travel with the charging belt formed by the wireless charging plate 1 as a central line, the electric energy receiving device wirelessly charged on the chassis of the vehicle is exposed above the wireless charging plate 1, the wireless charging plate 1 protruding in an arc shape shortens the distance between the electric energy transmitting end and the electric energy receiving end of the wireless charging road of the electric vehicle as much as possible, the energy loss is small, the energy transmission efficiency is high, the charging speed is high, and a large amount of electric energy can be injected in a short time.

Example 3

Different radians and high-low positions of the wireless charging plate can be set according to the heights of the chassis of different vehicles, and the set heights ensure that the corresponding vehicles can smoothly change lanes; the charging lane can be divided into a small-sized automobile charging lane, a cross-country vehicle charging lane and a truck charging lane, so that the charging efficiency is improved.

Claims

1. A wireless charging highway comprises a pavement system and a wireless charging system, wherein the pavement system comprises a resin layer, a solar cell panel layer, a pavement layer and a roadbed layer from top to bottom, the pavement system is divided into a plurality of wireless charging lanes according to the width of the pavement of the highway, and the wireless charging system is arranged at the central line position of each lane and embedded in the solar cell panel layer and the pavement layer; the method is characterized in that: the wireless charging system comprises a power supply grid and a wireless charging panel, wherein the power supply grid is arranged below the wireless charging panel, and the wireless charging panel is an array formed by a plurality of rectangular wireless charging panels with arc-shaped convex surfaces and used for transmitting electric energy; different radians and high-low positions of the wireless charging panel are arranged, and the height enables the corresponding vehicle to smoothly change lanes.

2. The wireless charging highway of claim 1, wherein: the power supply grid comprises a power supply source, an energy storage power station and grid exchange equipment, wherein the grid exchange equipment comprises an optical coupling isolation circuit, a shaping circuit, a differential circuit, a power conversion circuit and a full-bridge circuit; the optical coupling isolation circuit and the differential circuit are respectively connected with the shaping circuit; the power conversion circuit is respectively connected with the shaping circuit and the full-bridge circuit; the power conversion circuit is implemented by using IR 211O; the full-bridge circuit is realized by adopting MOSFET tubes.

3. The wireless charging highway of claim 1, wherein: and the electric energy generated by the solar cell panel layer is merged into a power supply.

4. The wireless charging highway of claim 1, wherein: the solar cell panel layer comprises a metal grid and a polycrystalline silicon solar cell panel embedded in the metal grid.

5. The wireless charging highway of claim 4, wherein: and the surface of the polycrystalline silicon solar cell panel is attached with an UHMWPE ultra-high molecular weight polyethylene plate.

6. The wireless charging highway of claim 4, wherein: expansion joints are arranged in the metal grids.

7. The wireless charging highway of claim 1, wherein: the road base layer is an earth-rock roadbed subjected to waterproof treatment.

8. The wireless charging highway of claim 1, wherein: the pavement layer is of an asphalt stone substructure or a concrete stone substructure.

9. The wireless charging highway of claim 1, wherein: the wireless charging panel is provided with a drainage channel which is flush with the road surface every 5-10 meters.

10. The wireless charging highway of claim 1, wherein: the resin layer is prepared by adding 4-6% of dibenzoyl peroxide initiator and nano SiO into MMA resin₂Silica sol with the content of more than 40 percent is sprayed on a clean road surface by a large airless sprayer.