KR101188836B1 - Integral Non-contact Electric Power Supplying System - Google Patents

Abstract

The integrated non-contact power supply system of the present invention, buried in the ground, at least one non-contact power supply unit for supplying power to the electric vehicle in a non-contact by using a magnetic field formed when the current is applied; And a current applying unit for applying current to at least one non-contact power supply unit, wherein the non-contact power supply unit includes: a power supply wire to which current is supplied from the current application unit; A plurality of ferrite cores disposed in parallel with the power supply wires and generating power by forming a magnetic field when a current is supplied to the power supply wires; And a position holding rail into which the power feeding wires and the plurality of ferrite cores are inserted to maintain the positions of the power feeding wires and the plurality of ferrite cores. According to the present invention, a power supply wire for supplying power and a plurality of ferrite cores can be firmly held in the ground, thereby reliably supplying power to a vehicle such as an electric vehicle.

Feeding, Ferrite Cores, Wires, Integrated, Rails, Electric Vehicles, Contactless, Power

Description

Integrated Non-contact Electric Power Supplying System

The present invention relates to an integrated non-contact power supply system, and more particularly, easy to install on the road, it can maintain the position firmly on the inside of the road when the installation is completed to smoothly supply power to a vehicle such as an electric vehicle in a non-contact It relates to an integrated non-contact power supply system that can be.

In recent years, in addition to vehicles using fossil fuels such as gasoline and diesel, experiments for continuously operating vehicles with alternative fuels such as electricity other than these fuels continue to be conducted, and are being developed and used in various fields. For example, electric vehicles using electricity as fuel are actually used in organizations such as government offices.

Such electric vehicles have several advantages over conventional vehicles using fossil fuels. Existing fossil fuels cannot be used permanently because they have a limited amount of landfill, and they have the disadvantage of polluting the environment because they inevitably generate pollutants. However, electricity used as fuel in an electric vehicle can be generated permanently, and because it does not generate pollutants, it is in the spotlight as the next generation fuel. Therefore, many studies have been carried out in the method for supplying electricity or the fuel usage time.

In general, the electric vehicle is driven using a charged battery, but it is difficult to commercialize due to the charging time, the weight of the battery and the high price. In order to overcome this disadvantage, the on-line electric vehicle, a new concept electric vehicle currently being developed by KAIST, is operated by receiving electric power by using a magnetic field generated from the road side. Therefore, in order for an electric vehicle to be driven, a structure for supplying electric power by generating a magnetic field, that is, a ferrite core and an electric wire, must be buried inside the road.

That is, when a ferrite core and an electric wire are embedded inside the road and a current is applied to the electric wire, a magnetic field is generated by the action of the ferrite core to supply electric power to the electric vehicle.

By the way, as mentioned above, in the conventional power supply system which supplies electric power to a vehicle, after the road was first excavated, the ferrite core and the electric wire were manually installed in the excavated portion, and then the laying was completed by pouring concrete. In this case, the work is cumbersome and time consuming due to the manual work, and it is also difficult to arrange the ferrite core at regular intervals.

In addition, when stress is concentrated from the surrounding area in the road area where the ferrite core and the wires are buried, the road may be damaged. When the road is flooded due to rain or snow, moisture is agglomerated around the electric wires, that is, safety accidents. May be generated.

Therefore, while maintaining the position of the ferrite core and wires, while the installation process is simple, and is resistant to the stress that can be generated from the outside, and the development of a power supply system of a new structure that can prevent the occurrence of electrical problems This is necessary.

An object of the present invention is that the electric wire for feeding and a plurality of ferrite cores are integrally coupled to the position holding rail and embedded in the road, whereby the electric feeding wire and the plurality of ferrite cores for power supply are firmly positioned in the ground. It is possible to maintain and, accordingly, to provide an integrated non-contact power supply system capable of reliably supplying power to a vehicle such as an electric vehicle.

In addition, another object of the present invention, the electric wire for feeding and a plurality of ferrite cores are integrally coupled to the position maintaining rail, and then embedded in the road, it is possible to execute the work process more easily than in the prior art to shorten the working time It is to provide an integrated non-contact power supply system that can be.

In addition, another object of the present invention is that the feed wire and the plurality of ferrite cores are coupled to the inside of the position maintaining rail, so that moisture generated by rain and snow, for example, directly affects the feed wire and the plurality of ferrite cores. It is possible to prevent the occurrence of, thereby providing an integrated non-contact power supply system that can prevent the occurrence of electrical safety accidents in advance.

An integrated non-contact power supply system according to an embodiment of the present invention, buried in the ground, at least one non-contact power supply unit for supplying power to the electric vehicle in a non-contact by using a magnetic field formed when the current is applied; And a current applying unit configured to apply current to the at least one non-contact power supply unit, wherein the non-contact power supply unit includes: a power supply wire to which current is supplied from the current application unit; A plurality of ferrite cores disposed in parallel with the power supply wires and generating power by forming a magnetic field when a current is supplied to the power supply wires; And a position maintenance rail into which the power supply wire and the plurality of ferrite cores are inserted to maintain positions of the power supply wire and the plurality of ferrite cores.

By such a configuration, the power supply wire for supplying power and the plurality of ferrite cores can be firmly held in the ground, thereby reliably supplying power to a vehicle such as an electric vehicle.

Here, the position maintaining rail, the rail body is provided long along the longitudinal direction; A wire insertion hole formed to penetrate long along the longitudinal direction of the rail body to insert the electric wire for feeding; And a core insertion hole formed to penetrate long along the longitudinal direction of the rail body to insert the plurality of ferrite cores, wherein the wire insertion hole and the core insertion hole may communicate with each other.

When the plurality of ferrite cores are inserted and arranged between the core insertion holes, a spacer for maintaining a spacing may be interposed between the ferrite cores so as to maintain the spacing of the plurality of ferrite cores. Cost savings can be realized compared to the continuous placement of ferrite cores.

The spacer for maintaining the gap may be manufactured in a shape corresponding to the shape of the ferrite core, but may be made of a non-conductive material.

The position maintaining rail may further include a drain pipe formed through the longitudinal direction at the lower end of the rail body in order to drain the liquid that can be introduced from the outside, so that the drainage operation is performed in the ground where the integrated non-contact power supply system is embedded. It can proceed smoothly.

The position maintaining rail further includes a shock absorbing part made of a rubber material that is coupled to an outer surface of the rail body and absorbs an impact given from the outside, so that an external force such as a strong shock or vibration from the outside is applied. Breakage can be prevented from occurring.

The lower end of the position maintaining rail has a relatively larger width than the upper end and the lower surface may be provided in a flat shape, thereby maintaining a stable state in the ground.

The position maintaining rail can be manufactured by extrusion molding, it can facilitate the production.

The position maintaining rail is made of a fiber reinforced plastic (FRP) material, and thus may have strong durability.

The at least one non-contact power supply unit may be a plurality of non-contact power supply units, and the plurality of non-contact power supply units may be arranged in two rows to be parallel to each other to supply power to the electric vehicle in a non-contact manner.

The at least one non-contact power supply unit may be a plurality of non-contact power supply units, and the plurality of non-contact power supply units may be arranged in parallel to each other in parallel to supply power to the electric vehicle in a non-contact manner.

The plurality of ferrite cores are inserted in two rows along the longitudinal direction of the position maintaining rail, and the non-contact power feeding unit is arranged in a zigzag direction between the plurality of ferrite cores in which the wires for feeding are arranged in two rows. It may further include a plurality of wire fixing member for fixing the electric wire for feeding.

In the integrated non-contact electric power feeding system according to the embodiment of the present invention, the electric wire for power supply and the plurality of ferrite cores are integrally coupled to the position maintaining rail, and then embedded in the road. Its position can be held firmly in the ground, thus reliably supplying power to vehicles such as electric vehicles.

In addition, the integrated non-contact electric power feeding system according to an embodiment of the present invention, the electric wire for power supply and a plurality of ferrite cores are integrally coupled to the position maintaining rail, and then embedded in the road, thereby making the work process easier than in the related art. Can shorten the working time.

In addition, the integrated non-contact power feeding system according to an embodiment of the present invention, the electric wire for feeding and the plurality of ferrite cores are coupled to the inside of the position holding rail, so that the moisture generated by rain and snow, for example, It is possible to prevent the direct influence of the ferrite cores of the dog, thereby preventing the occurrence of electrical safety accidents.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the configuration and operation according to an embodiment of the present invention. The following description is one of several aspects of the patentable invention and the following description forms part of the detailed description of the invention.

1 is a view showing a state in which the integrated non-contact power supply system is embedded in the road according to an embodiment of the present invention, Figure 2 is a perspective view of the combined contactless power supply unit shown in Figure 1, Figure 3 is an exploded view of Figure 2 4 is a perspective view, and FIG. 4 is a view illustrating various forms of the position maintaining rail shown in FIG. 3.

Referring to FIG. 1, the integrated non-contact power supply system 100 according to an embodiment of the present invention may be a non-contact power supply to an electric vehicle (not shown) by using a magnetic field embedded in the ground 103 and formed when an electric current is applied. A plurality of non-contact power supply unit 101 to supply and a current applying unit (not shown) for applying a current to the non-contact power supply unit 101.

That is, when a current is applied to the plurality of non-contact power supply units 101 by the current applying unit, electric power that can be supplied to the electric vehicle is generated by the action of the non-contact power supply unit 101, and the electric vehicle is charged by the electric power. It can be.

First, the non-contact power supply unit 101 will be described. As shown in FIGS. 2 and 3, the non-contact power supply unit 101 of the present embodiment is connected to an external current applying unit to supply electric current. And a plurality of ferrite cores 120 arranged in parallel with the power supply wires 110 to generate electric power by using a magnetic field formed when a current is applied to the power supply wires 110. A power supply wire 110 and a plurality of ferrite cores 120 are inserted to include a position maintaining rail 130 to firmly maintain their position.

Referring to each configuration, first, the power supply wire 110 is inserted along the length of the position maintaining rail 130 as a portion to which a current is applied.

In addition, the ferrite core 120 forms a magnetic field when a current is applied to the power supply wire 110 so that electric power can be supplied to the electric vehicle.

The position maintaining rail 130 is a portion into which the electric power feeding wire 110 and the ferrite core 120 are inserted and fixed. Therefore, the position maintaining rail 130 has a structure for firmly fixing the electric wire 110 and the ferrite core 120 for power supply. In this regard, the position maintaining rail 130 of the present embodiment has a rail body 131 which is provided to extend in the longitudinal direction, and is formed to penetrate long along the longitudinal direction of the rail body 131 to supply the aforementioned power supply wires. A wire insertion hole 132 into which the 110 is inserted and a core insertion hole 133 formed to penetrate long along the longitudinal direction of the rail body 131 are inserted into the ferrite core 120 described above.

However, the wire insertion hole 132 and the core insertion hole 133 are provided to be in communication with each other, rather than being spaced apart. Therefore, when a current is supplied to the power supply wire 110 inserted into the wire insertion hole 132, the ferrite core 120 inserted into the core insertion hole 133 may act electromagnetically to form a magnetic field. Accordingly, power may be supplied to the charging unit of the above-described electric vehicle.

Meanwhile, as shown in FIGS. 2 and 3, the power feeding wire 110 is continuously provided in the wire insertion hole 132, while the ferrite core 120 is not continuously provided. This is because the cost may increase when the ferrite cores 120 are continuously elongated. Therefore, the spacer for maintaining a gap between the ferrite cores 120 may maintain a predetermined distance between the ferrite cores 120. 140).

As shown in FIG. 3, the spacer 140 for maintaining the gap may be manufactured in a shape similar to that of the ferrite core 120, but may be formed of a non-conductive material. Thus, a current is applied to the power supply wire 110 so that the ferrite core may be formed. When the magnetic field is formed around the 120, the electromagnetic interference may be blocked by the spacer 140 for maintaining the gap.

On the other hand, the position retaining rail 130 of the present embodiment, the drain pipe 135 and the rail body 131 is formed to penetrate long in the longitudinal direction of the rail body 131 in the lower portion of the above-described insertion holes (132, 133) It may further include a shock absorbing portion 137 (see (I) of FIG. 4) coupled to the outer surface of the shock absorber to absorb the shock given from the outside.

As described above, in the related art, water (liquid) generated due to rain or snow penetrates into the ground and reacts with an electric wire to cause an electric safety accident. In this embodiment, such a problem is caused by the drain pipe 135. You can stop that.

The drain pipe 135 is formed to penetrate long along the longitudinal direction of the rail body 131 so that the water permeated into the ground 103 can flow along the inside thereof. The drain pipe 135 is connected to a tank (not shown) in which the liquid is collected, which causes the electric wire 110 or the ferrite core 120 inserted into the rail body 131 to contact the liquid (or water). This can prevent electrical safety accidents in advance.

However, such a drain pipe 135 may be selectively provided. That is, it is preferable that such a drain pipe 135 is installed in an area where rain and snow are abundant, or an area having a structural feature in which a lot of liquid is generated in the ground 103, but in an underground area where drainage is not required. The embedded position maintaining rail 130 may be provided without a drain pipe 135.

On the other hand, the shock absorbing portion 137 is provided along the circumference of the rail body 131, as shown in (I) of FIG. The shock absorbing part 137 may be provided with a rubber material having a cushioning property. Therefore, even if an external force such as a strong shock or vibration is applied from the outside, the external force is absorbed by the shock absorbing part 137, thereby preventing the integrated non-contact power supply system 100 according to the present embodiment from being damaged.

However, the shock absorber 137 may also be selectively provided. That is, it is preferable that such a shock absorbing part 137 be installed in an area where external force such as a strong shock or vibration is frequently generated from the outside, but the location is buried in the ground of an area where strong external force is not frequently generated. The rail 130 may be provided without the shock absorbing portion 137.

On the other hand, referring to Figure 4, the rail body 131 of the position maintaining rail 130 is provided with a wider width of the lower end than the upper end, the lower surface may be provided in a flat shape. As described above, in order to bury the integrated non-contact power supply system 100 in the present embodiment after the excavation work to bury the integrated non-contact power supply system 100 on the lower surface of the excavated underground 103, the concrete is poured. The lower end portion of the rail body 131 is wider than the upper end portion and provided with a flat surface in contact with the ground, thereby increasing stability of the installation.

And, the position maintaining rail 130 of the present embodiment, in order to stably protect the power supply wire 110 and the ferrite core 120 coupled to the inside, the external moisture and the like is the power supply wire 110 and In order to prevent contact with the ferrite core 120 or the like, it is made of a fiber reinforced plastic (FRP) material having strong durability.

Therefore, even if a large stress is concentrated in the part of the road where the integrated non-contact power feeding system 100 of the present embodiment is installed, the position maintaining rail 130 withstands such a stress, so that the power feeding wire 110 and the ferrite core coupled therein It is possible to prevent the 120 from being broken.

However, the material of the position maintaining rail 130 is not limited to the fiber-reinforced plastic material, and of course, it may be provided with other materials having durability and non-conductivity.

In addition, this position holding rail 130 is manufactured by extrusion molding. That is, the cross-sectional shape of the position maintaining rail 130 may be manufactured by extrusion molding, which is a relatively simple molding method since the cross-sectional shape of the position maintaining rail 130 is substantially the same in any part.

On the other hand, referring to Figure 4, the cross section of the position maintaining rail 130 according to an embodiment of the present invention may be provided in various shapes. One of the position maintaining rails 130 having various heights may be selected and applied according to the state or depth of the underground 103 to be buried. Also, the presence or absence of the drain pipe 135 may be selected according to the statistically drained drainage amount. In addition, in the region where external force such as shock and vibration are frequently generated from the outside, the position maintaining rail 130 having the shock absorbing portion 137 may be selected and applied.

For example, in an area where a lot of rain, snow, etc., a large amount of drainage, and frequent shocks or vibrations occur from the outside, among the (I) to (VI) position maintaining rail 130 shown in FIG. The position maintaining rail 130 of) should be applied, for example, the position maintaining rail 130 of (III) or (VI) may be applied in an area where the amount of drainage and little external force is generated.

That is, according to each condition, the position maintaining rail 130 can be produced simply by extrusion molding. However, any type of position maintaining rail 130 is inserted into the power supply wire 110 and the ferrite core 120 therein, and thus can smoothly supply electric power to an electric vehicle.

Hereinafter, a method of operating the integrated non-contact power supply system 100 having such a configuration will be described with reference to FIG. 1.

As shown in FIG. 1, the power feeding wire 110 penetrates one non-contact power supply unit 101 and then penetrates the other non-contact power supply unit 101 located on the side. Therefore, when a current is applied to the power supply wire 110, the applied current and the ferrite core 120 may electromagnetically react to form a magnetic field, and may supply power to a vehicle such as an electric vehicle.

When the non-contact power supply unit 101 is disposed long as shown in FIG. 1, a vehicle such as an electric vehicle may be powered while moving, thereby improving mobility and charging efficiency.

As such, according to the integrated non-contact power supply system 100 according to an embodiment of the present invention, the electric wire 110 and the plurality of ferrite cores 120 are integrally coupled to the position maintaining rail 130 and then the road. By being embedded inside, the power supply wire 110 and the plurality of ferrite cores 120 for power supply can be firmly maintained in the ground 103, thereby reliably supplying power to a vehicle such as an electric vehicle. There is an advantage to it.

In addition, since the electric wire for power supply 110 and the plurality of ferrite cores 120 are integrally coupled to the position maintaining rail 130 and embedded in the road, the work process can be executed more easily than before. It is possible to shorten, for example, it is possible to prevent the water generated due to rain and snow directly affect the power supply wire 110 and the plurality of ferrite cores 120 to prevent the occurrence of electrical safety accidents in advance. There is an advantage that can be prevented.

On the other hand, with reference to the accompanying drawings will be described with respect to the integrated non-contact power supply system according to another embodiment of the present invention. However, the same description as that described in the integrated non-contact power supply system according to an embodiment of the present invention will be omitted.

5 is a view showing a state in which the integrated non-contact power supply system is embedded in the road according to another embodiment of the present invention, Figure 6 is a combined perspective view and an exploded perspective view of the contactless power supply unit shown in Figure 5, Figure 7 is a view 6 is a cross-sectional view of the non-contact power feeding unit along the line VII-VII.

6 and 7, the non-contact power supply unit 201 according to another embodiment of the present invention, the position holding rail 230 having the wire insertion hole 232 and the core insertion hole 233, and the center The ferrite core 220 is inserted into the core insertion hole 233 so that a part is bent and inserted into the electric wire insertion hole 232 in two rows, and a part is interposed between the electric power feeding wire 210. Include.

Therefore, by the electric wire 210 of this structure, the current can flow in one direction and the other direction opposite thereto, thereby forming a magnetic field corresponding thereto to supply power to the charging part of the vehicle, such as an electric vehicle. .

Referring to FIG. 5, the non-contact power supply unit 201 may be arranged in parallel to the integrated non-contact power supply system 200 according to another embodiment of the present invention, and when a current is applied to each power supply wire 210. A magnetic field can be formed to generate power. Therefore, charging can be made when a vehicle such as an electric vehicle moves in the region where such a magnetic field is formed.

On the other hand, with reference to the accompanying drawings will be described an integrated non-contact power supply system according to another embodiment of the present invention. However, the same description as that described in the integrated non-contact power supply system according to one embodiment and the other embodiment of the present invention will be omitted.

8 is an exploded perspective view of a non-contact power supply unit provided in an integrated non-contact power supply system according to another embodiment of the present invention, Figure 9 is a cross-sectional view of the cross-sectional view in the state shown in Figure 8 combined.

As shown in these drawings, the non-contact power supply unit 301 according to another embodiment of the present invention, the electric wire for power supply 310, a plurality of ferrite cores 320, and the rail for holding the position ( 330, but in addition to these, the wire fixing members 315 for fixing the power feeding wire 310 may be arranged such that the power feeding wire 310 may be disposed in a zigzag direction between the ferrite cores 320. Include.

First, the position maintaining rail 330 is formed through the rail body 331 and the rail body 331 so as to be spaced apart from each other side by side to provide a pair of core insertion holes 333 into which the ferrite cores 320 are inserted. And, the power supply wire 310 includes a wire insertion hole 332 is inserted into the wire fixing member 315 is coupled in a zigzag (zigzag).

By such a configuration, between the ferrite cores 320 provided in the longitudinal direction in the upper and lower portions, the power feeding wire 310 is arranged in a zigzag, in which a current is applied to the power feeding wire 310 In this case, a magnetic field in one direction may be formed to smoothly supply power to a vehicle such as an electric vehicle, and may be charged.

As described above, according to the present exemplary embodiment, the ferrite cores 320 are arranged side by side in one position maintaining rail 330, and the electric power feeding wire 310 is arranged in a zigzag between them, such as an electric vehicle. The power supply can be reliably executed, and this structure also reduces the overall size.

In the above-described embodiment, a case in which a plurality of non-contact power supply units are arranged in two rows is described. In another embodiment, a case in which a plurality of non-contact power supply units are arranged in parallel is described, and in another embodiment, one The case where the integrated non-contact feeding system is implemented by the non-contact feeding unit of the present invention has been described, but is not limited thereto. The non-contact feeding units may be arranged in other arrangements as long as it can generate electric power for charging the electric vehicle. Of course.

In the present invention as described above has been described by the specific embodiments, such as specific components and limited embodiments and drawings, but this is provided to help a more general understanding of the present invention, the present invention is not limited to the above embodiments. For those skilled in the art, various modifications and variations are possible from these descriptions. Accordingly, the spirit of the present invention should not be construed as being limited to the embodiments described, and all of the equivalents or equivalents of the claims, as well as the following claims, belong to the scope of the present invention .

1 is a view showing a state in which an integrated non-contact power supply system is embedded in the road according to an embodiment of the present invention.

FIG. 2 is a combined perspective view of the contactless power supply unit shown in FIG. 1.

3 is an exploded perspective view of FIG. 2.

4 is a view showing various forms of the position maintaining rail shown in FIG.

5 is a view showing a state in which an integrated non-contact power supply system is embedded in the road according to another embodiment of the present invention.

6 is a combined perspective view and an exploded perspective view of the contactless power supply unit shown in FIG.

FIG. 7 is a cross-sectional view of the non-contact power supply unit taken along the line VII-VII shown in FIG. 6.

8 is an exploded perspective view of a non-contact power supply unit provided in an integrated non-contact power supply system according to another embodiment of the present invention.

FIG. 9 is a cross-sectional view taken along the cross-sectional view of the components illustrated in FIG. 8.

<Explanation of symbols for the main parts of the drawings>

100: integrated non-contact power supply system 101: non-contact power supply unit

110: power supply wire 120: ferrite core

130: rail for maintaining position 140: spacer for maintaining gap

Claims (12)

At least one non-contact power supply unit embedded in the ground and supplying electric power to the electric vehicle in a non-contact manner by using a magnetic field formed when an electric current is applied; And It includes a current applying unit for applying a current to the at least one non-contact power supply unit, The non-contact power supply unit, A power supply wire to which current is supplied from the current applying unit; A plurality of ferrite cores disposed in parallel with the power supply wires and generating power by forming a magnetic field when a current is supplied to the power supply wires; And A position-holding rail into which the power supply wires and the plurality of ferrite cores are inserted to maintain positions of the power supply wires and the plurality of ferrite cores; Integrated contactless power supply system comprising a. The method of claim 1, The rail for position maintenance, A rail body provided along the longitudinal direction; A wire insertion hole formed to penetrate long along the longitudinal direction of the rail body to insert the electric wire for feeding; And It is formed to penetrate long along the longitudinal direction of the rail body includes a core insertion hole into which the plurality of ferrite cores are inserted, And the wire insertion hole and the core insertion hole communicate with each other. 3. The method of claim 2, When the plurality of ferrite cores are inserted and arranged between the core insertion holes, an integrated non-contact power feeding system having a spacer for maintaining a gap between the ferrite cores so as to maintain the spacing of the plurality of ferrite cores. . The method of claim 3, The spacer for maintaining the spacing is an integral non-contact power supply system made of a non-conductive material. 3. The method of claim 2, The rail for position maintenance, The non-contact power supply system of claim 1, further comprising a drain pipe formed through the longitudinal direction in the lower end of the rail body for draining liquid that can be introduced from the outside. 3. The method of claim 2, The rail for position maintenance, An integrated non-contact power supply system coupled to the outer surface of the rail body, further comprising a shock absorbing portion of a rubber (rubber) material to absorb the shock given from the outside. 3. The method of claim 2, The lower end portion of the position maintaining rail has a relatively larger width than the upper end portion and the lower surface of the integrated non-contact power supply system is provided in a flat shape. 3. The method of claim 2, And said position retaining rail is produced by extrusion molding. 3. The method of claim 2, The position maintaining rail is an integral non-contact feeding system is provided of a fiber reinforced plastic (FRP, Fiber Reinforced Plastic) material. The method of claim 1, The at least one non-contact power supply unit is a plurality of non-contact power supply unit, And the plurality of non-contact power supply units are arranged in two rows in parallel with each other to supply power to the electric vehicle in a non-contact manner. The method of claim 1, The at least one non-contact power supply unit is a plurality of non-contact power supply unit, And the plurality of non-contact power supply units are arranged in parallel to each other in parallel to supply electric power to the electric vehicle in a non-contact manner. The method of claim 1, The plurality of ferrite cores are inserted in two rows along the longitudinal direction of the position maintaining rail, The non-contact power supply unit, And a plurality of electric wire fixing members for fixing the electric wire for feeding so that the electric wire for feeding can be arranged in a zigzag direction between the plurality of ferrite cores arranged in two rows.

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