WO2011081479A2

WO2011081479A2 - Non-contact segment block for electric vehicle

Info

Publication number: WO2011081479A2
Application number: PCT/KR2010/009569
Authority: WO
Inventors: 서남표; 장순흥; 조동호; 임재하
Original assignee: 한국과학기술원
Priority date: 2009-12-30
Filing date: 2010-12-30
Publication date: 2011-07-07
Also published as: KR20110078216A; WO2011081479A3; KR101177552B1

Abstract

The present invention opens a feeding segment for electric vehicles. In more detail, the present invention relates to a non-contact feeding segment block for online electric vehicles, wherein the segment block and a main power supply means for supplying power to the same are embodied in a non-contact method without using a connector in a method for supplying power to an electric vehicle in a magnetic induction method with one or more feeding segment blocks embedded under the road. The feeding device of an online electric vehicle comprises a main power line segment block which is connected to an inverter and generates a magnetic field when recognizing the moving of the vehicle; and a feeding segment block which is installed in the upper part of the main power segment block at a fixed distance and supplies power for the magnetic field to the vehicle. According to the embodiment of the present invention, it is able to facilitate installation and minimize failure, and reduce operation costs since various sizes of the feeding segment block can be mass-produced at a factory and a mechanical connection means such as a connector can be minimized according to the request of the customer by physically separating the segment feeding block and the main power line of a conventional online electric vehicle for the formation of the main power segment block.

Description

Contactless segment blocks for electric vehicles

The present invention relates to a feed segment for an electric vehicle, and more particularly, in a method of supplying power to an electric vehicle in a self-induced manner by at least one feed segment block embedded under a road, The present invention relates to a non-contact feed segment block for an online electric vehicle for an electric vehicle in which the main power supply means is implemented in a contactless manner without using a connector.

As an alternative energy vehicle that is being developed to replace existing vehicles operating on fossil fuels that cause environmental pollution problems, online electric vehicles install a power feeding device under the road and charge the battery in a self-inducing manner. Such a self-induction electric vehicle has an advantage of being driven by the charging power of the mounted battery when the power supply is interrupted from the power feeding device.

In the initial feeding device, the electric power supply line was extended along the entire road, and the electric power was supplied to the entire feeding device, but recently, a method of implementing a segment block, which is a predetermined unit module for feeding, has been proposed.

1 is a diagram illustrating the structure of a conventional online electric vehicle and a power supply segment block.

As shown, in the conventional electric power feeding system of the online electric vehicle, a power feeding segment block 200 divided into one or more unit modules is buried along the road under the road on which the vehicle 100 runs. When the information transceiver 120 of the vehicle 100 provides the vehicle information to the power supply segment block, and the vehicle detection sensor 220 installed in the power supply segment block 200 recognizes that the vehicle 100 passes, the inverter ( 400 applies a voltage to the feed segment block 200 via the main power line 300. At this time, the electric power is induced by the induced electromotive force 170 between the feed segment block 200 and the current collector 110 provided in the vehicle under the control of the switch 230 connected through the feed segment block 200 and the connector 260. It is a way to charge.

In the case of the online electric vehicle and its power supply system having the above-described structure, especially in the urban area, it is desirable to build a power supply system so that the segment block is as short as possible in order to satisfy the domestic and international standards related to electromagnetic waves and to ensure the health and safety of citizens. desirable. The technical problem to be solved is to use a main power feeder for supplying power to each feed segment block, and a large power connector having a large number of expensive waterproof functions to connect the feeder in each feed segment block, It is necessary to design and install expensive structures in order to prepare for vibration and rainfall. If there are many mechanical connections using the above connectors, the mean time between failures (MTBF) of the entire system is shortened, causing frequent failures of the system. Accordingly, there is a problem in that it takes a long time when replacing a broken segment, and the maintenance and repair costs increase.

The present invention has been made to solve the above-described problems, in order to more efficiently improve the electric power feed segment block for an online electric vehicle, the existing feed segment block and the main power line is composed of a segment feed block and the main power feed block, The power transfer between the two blocks is easy to maintain the whole system by minimizing the number of mechanical fastening parts without using a mechanical connection device such as a connector, and also to replace the failed feed segment block more easily. The purpose is to provide a non-contact feed segment block system for an electric vehicle.

In order to achieve the above object, a power supply device for an electric vehicle according to a preferred embodiment of the present invention, the main power segment block is connected to the inverter to generate a magnetic field when the vehicle recognizes the driving; And a power feeding segment block disposed below the road at a predetermined distance and supplying power to the vehicle corresponding to the magnetic field.

The main power segment block may include: a main power line connected to the inverter to transfer current between each main power segment; A main power coil for generating a collector field in response to the current flowing through the main power line; And a main power magnetic material that focuses and strengthens the main electric field coil and transfers it to the power supply segment block.

The main power segment block may further include a shielding network that cancels the current collector field to the outside of the main power magnetic material.

The power feeding segment block may include a current collecting magnetic material that focuses a power feeding magnetic field transmitted from the main power segment block; A current collector coil configured to be provided inside the current collector magnetic material and convert the focused electromagnetic field into electric power; A current collecting line provided inside the current collecting magnetic material to transfer a current corresponding to the electric power between each feeding segment block; A feeder for generating a segment feeder field in response to a current flowing through the current collector; A power switch connected to the current collecting line and the feeding line to conduct and cut off current; A communication module for controlling the power switch according to the movement of the vehicle; And a feeding magnetic body positioned above the current collecting magnetic material and focusing and strengthening the feeding electromagnetic field generated from the feeding line provided inside.

The switch may be a relay circuit or an electronic switch for power.

The main power magnetic material, the current collecting magnetic material and the feeding magnetic material is characterized in that composed of ferrite.

The main power segment block and the feed segment block is characterized in that mounted in an enclosure of a solid material.

The enclosure is characterized in that the concrete material.

In order to achieve the above object, a power supply segment block of an electric vehicle according to a preferred embodiment of the present invention, a current collecting magnetic body for generating electric power corresponding to the main power feed magnetic field from the magnetic field generating means connected to the inverter; A feeding magnetic material connected to the current collecting magnetic material to generate a segment feeding magnetic field corresponding to the electric power; A power switch connecting the current collecting magnetic material and the feeding magnetic material; And a communication module for controlling the power switch.

The current collector magnetic body may include a current collector coil configured to convert the main power feed magnetic field into electric power; And a current collecting line configured to transfer a current corresponding to the electric power converted by the current collecting coil between each feeding segment block.

The feed magnetic material may include a feed line connected to the current collector coil to generate a segment feed magnetic field corresponding to the current.

The feed segment block may include: a power switch connected to the current collecting line and the feed line to conduct or cut off the current; And, characterized in that it comprises a communication module for controlling the power switch.

The power switch is a relay circuit or a power electronic switch.

The current collecting magnetic material and the feeding magnetic material are characterized by consisting of ferrite.

The feed segment block is mounted in an enclosure of a solid material.

The enclosure is characterized in that the concrete material.

In order to achieve the above object, the main power segment block of the electric vehicle according to a preferred embodiment of the present invention, the main power magnetic body is connected to the inverter to transfer the power supply magnetic field to the power supply segment block for supplying power to the vehicle and The main power magnetic material is located inward and receives power from the inverter; And a main power coil for generating the feed magnetic field corresponding to the power.

The main power segment block may further include a shielding network that cancels the feeding magnetic field to the outside of the main power magnetic material.

The main power magnetic material is characterized by consisting of ferrite.

The main power segment block is mounted in an enclosure of a solid material.

The enclosure is characterized in that the concrete material.

According to a preferred embodiment of the present invention, by forming a segment system by physically separating the segment feed block and the main power line of the existing online electric vehicle, it is possible to mass-produce the feed segment block in various sizes at a factory inexpensively according to the needs of customers. By minimizing mechanical connections, such as connectors, it is possible to minimize failure points and reduce operating costs.

In addition, when installing the power supply system, segment system construction can be performed by stacking the power supply segment block to the upper part after installing the main power segment block, thus simplifying the existing complex segment system construction work to reduce work time and construction cost in the field. It has the effect of reducing it.

In addition, according to the blockage of the power supply and the main power device, if an error occurs in one segment block, simply replace the segment block with a new segment block and operate the system again without additional field adjustment process. Therefore, there is an effect that can significantly reduce the maintenance cost and time of the system.

2 is a diagram illustrating an on-line electric vehicle and a contactless feeding segment block according to a preferred embodiment of the present invention.

3 is a cross-sectional view of a power supply segment block and a main power segment block according to a preferred embodiment of the present invention.

100: vehicle 110: current collector

120: information transmitter 200: feed segment block

275: current collector 500: main power segment block

Hereinafter, a magnetic field shielding device of an electric vehicle feeder and a collector according to a preferred embodiment of the present invention will be described with reference to the drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. On the basis of the principle that can be defined should be described in the meaning and concept corresponding to the technical idea of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

As shown, in the present invention, the main power segment block 500 is installed under the power supply segment block 200 and the power supply segment block 200 buried under the road on which the vehicle 100 travels. Specifically, the power supply segment block 200 is configured to supply power to the current collector 110 of the vehicle 100, and the main power segment block 500 is configured to supply power to the power supply segment block 200. According to this configuration, the information transceiver 120 of the vehicle 100 provides the vehicle information to the power supply segment block 200, and the vehicle detection sensor 220 installed in the power supply segment block 200 is passed through the vehicle. When recognizing, the power supply segment block 200 is applied with a voltage according to the magnetic field 275 induced from the main power segment block 500 and supplies power to the current collector 110 of the vehicle 100.

The above-described installation method of the power supply segment block 200 and the main power segment block 500, first install the main power segment block 500 at the bottom grooved on the road where the system will be installed, and then the designer If the number of the number of feed segment blocks 200 are independently arranged as a prefabricated block above the main power segment block 500, the installation of the non-contact segment feed road for the electric vehicle is completed.

The length of the above-described main power segment block may vary depending on the designer's intention, but it is preferably several times longer than the unit length of the feed segment block to be installed together. In general, the length of the feed segment block may vary from 1m, 2m, 3m or 10m, etc., depending on the intention of the designer, and can be mass produced in the same size in the production plant. Accordingly, for example, when constructing a feed road having a length of 600 m, if the length of the main power segment is determined to be 40 m for optimal efficiency due to the characteristics of the power feeding inverter, 15 main power feeding blocks are required. If the optimal feed segment block length determined by the designer on top of the main power segment block is 4m, 10 feed segment blocks are installed on the main power segment.

As shown, the present invention is a main power segment including a feed segment block 200 including a feed magnetic material 210 and a current collecting magnetic material 240 buried beneath the road asphalt 190, and a main power magnetic material 520 It is composed of a segment block 500.

In more detail, the feeding magnetic material 210 of the aforementioned feeding segment block 200 includes a segment feeding line 211 that supplies electric power to a current collector of the vehicle by using a magnetic field inward, and drives the power switch ( 213 and the communication module 215.

The power switch 213 receives a control signal from the communication module 215 and performs a function of connecting or disconnecting the segment feed line 211 and the current collector line 242 in response thereto. The power switch 213 may be implemented as a relay circuit or an electronic switch for power.

The current collector magnetic body 240 is connected to the power switch 213 inward, and receives the power from the main power segment block 500, and collects the current collector line 242 and the current collector coil 244 to supply the segment feed line 211. Include.

The current collector magnetic body 240 may be connected in the form of three “工” characters, and the current collector line 242 and the current collector coil 244 are positioned inside the center portion.

The main power segment block 500 may include a main power magnetic body 510 including a main power line 522 and a main power coil 524, and a magnetic field shielding network that shields a magnetic field generated from the main power magnetic material 510. 520).

The main power magnetic body 510 is in the form of an “industrial” character, and the main power line 522 and the main power coil 524 are positioned inward, and the upper portion thereof is positioned to correspond to the lower portion of the current collector magnetic body 240.

In addition, the magnetic field shielding network 520 minimizes the magnetic field generated on the side of the main power magnetic material 210 in the main power segment block 200 and affects the magnetic field related to other steel structures or electrical facilities installed nearby, As shielding means for shielding magnetic field radiation, it is preferable to use a copper mesh or an aluminum mesh. The magnetic field shielding network 520 is provided in a form of being embedded together in a concrete enclosure while maintaining a proper spacing necessary to avoid induction heating of the main power line 522.

Here, the aforementioned feeding magnetic material 210, current collecting magnetic material 240 and main power magnetic material 510 is preferably made of ferrite or the like.

The feed segment block 200 and the main power segment block 500 is preferably surrounded by an enclosure of a solid material such as concrete.

Referring to the driving of the power supply segment block 200 and the main power segment block 500 having the above-described structure, the magnetic field generated by the main power line 522 in the main power segment block 500 is generated by the main power magnetic material 510. It is reinforced and focused and delivered to the feed segment block 200. The current collecting magnetic material 240 of the power feeding segment block 200 focuses the focused magnetic field sent from the main power segment block 500 toward the current collecting coil 244, and the current collecting coil 244 is focused by the current collecting magnetic material 240. Converts a magnetic field into power

Then, the power converted through the current collector coil 244 is provided to the current collector provided in the vehicle on the power supply road via the segment feed line 211, according to the control signal of the communication module 215 in the power supply segment block 200. Electric power for propulsion of the vehicle is transmitted to the current collector of the electric vehicle in a non-contact manner. That is, the power input to the segment feed line 211 through the switch 213 is converted back to a magnetic field, concentrated and reinforced through the segment magnetic material 210 and transmitted to the current collector of the vehicle running on the road 190 in a non-contact manner. do. Although not shown, the current collector of the vehicle focuses and receives a magnetic field again using its own magnetic material, converts the received magnetic field into AC power, and uses the driving power of the vehicle.

According to the above-described driving, it is possible to charge the online electric vehicle without using a mechanical connection device such as a connector by sending the necessary AC power from the main power segment block to the feed segment block through the magnetic field in a non-contact manner through the magnetic field. .

As mentioned above, although this invention was demonstrated by the limited Example and drawing, this invention is not limited by this and this invention and the technical thought, and the following by those of ordinary skill in the art to which this invention belongs. Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

Claims

In the electric power feeding device of the electric vehicle,

A main power segment block connected to the inverter and generating a magnetic field when the vehicle recognizes driving; And,

A power supply segment block under the road spaced apart a predetermined distance from the top, and supplies electric power corresponding to the magnetic field to the vehicle.

Contactless segment block for an electric vehicle comprising a.
The method of claim 1,

The main power segment block,

A main power line connected to the inverter to transfer current between each main power segment;

A main power coil for generating a collector field in response to the current flowing through the main power line; And,

A main power magnetic material that focuses and strengthens the main electric coil and collects the electric field to the power supply segment block.

Non-contact segment block for an electric vehicle comprising a.
The method of claim 1,

The main power segment block,

The non-contact segment block for an electric vehicle, further comprising a shielding net that offsets the current collector field to the outside of the main power magnetic material.
The method of claim 1,

The feed segment block,

A current collecting magnetic body that focuses a feeding magnetic field transmitted from the main power segment block;

A current collector coil configured to be provided inside the current collector magnetic material and convert the focused electromagnetic field into electric power;

A current collecting line provided inside the current collecting magnetic material to transfer a current corresponding to the electric power between each feeding segment block;

A feeder for generating a segment feeder field in response to a current flowing through the current collector;

A power switch connected to the current collecting line and the feeding line to conduct and cut off current;

A communication module for controlling the power switch according to the movement of the vehicle; And,

A magnetic feeder that is located above the current collector magnetic body and focuses and strengthens the electromagnetic field generated from the feeder line provided therein to the vehicle.

Non-contact segment block for an electric vehicle comprising a.
The method of claim 4, wherein

The switch is a non-contact segment block for an electric vehicle, characterized in that the relay circuit (power relay) or an electronic switch for power.
The method according to claim 2 or 4, wherein

The main power magnetic material, the current collector magnetic material and the feed magnetic material is a non-contact segment block for an electric vehicle, characterized in that consisting of ferrite.
The method of claim 1,

The main power segment block and the feed segment block is a non-contact segment block for an electric vehicle, characterized in that mounted in a solid material enclosure.
The method of claim 7, wherein

The enclosure is a non-contact segment block for an electric vehicle, characterized in that the concrete material.
As a feed segment block of an electric vehicle,

A current collecting magnetic body for generating electric power corresponding to the main electric power feeding magnetic field from the magnetic field generating means connected to the inverter;

A feeding magnetic material connected to the current collecting magnetic material to generate a segment feeding magnetic field corresponding to the electric power;

A power switch connecting the current collecting magnetic material and the feeding magnetic material; And,

Communication module for controlling the power switch

Contactless segment block for an online electric vehicle comprising a.
The method of claim 9,

The current collector magnetic material,

A current collecting coil for converting the main electric power feeding magnetic field into electric power; And,

Current collecting line for transferring the current corresponding to the power converted by the current collector coil between each feed segment block

Non-contact segment block for an electric vehicle comprising a.
The method of claim 9,

The feeding magnetic material,

And a feeder line connected to the current collector coil to generate a segment feed magnetic field corresponding to the current.
The method of claim 11,

The feed segment block may include: a power switch connected to the current collecting line and the feed line to conduct or cut off the current; And,

Communication module for controlling the power switch

Non-contact segment block for an electric vehicle comprising a.
The method of claim 12,

The power switch is a non-contact segment block for an electric vehicle, characterized in that the relay circuit (relay circuit) or a power electronic switch.
The method of claim 9,

The current collecting magnetic material and the feeding magnetic material is a non-contact segment block for an electric vehicle, characterized in that composed of ferrite.
The method of claim 9,

The feed segment block is a non-contact segment block for an electric vehicle, characterized in that mounted in an enclosure of a solid material.
The method of claim 15,

The enclosure is a non-contact segment block for an electric vehicle, characterized in that the concrete material.
As the main power segment block of electric vehicles,

A main power magnetic material connected to an inverter to transfer a feed magnetic field to a feed segment block for supplying power to a vehicle,

The main power magnetic material is located inward and receives power from the inverter; And,

A main power coil for generating said fed magnetic field corresponding to said power;

Contactless segment block for an electric vehicle comprising a.
The method of claim 17,

The main power segment block,

The non-contact segment block for an electric vehicle, characterized in that it further comprises a shielding net to cancel the power supply magnetic field outside the main power magnetic material.
The method of claim 17,

The main power magnetic material is a non-contact segment block for an electric vehicle, characterized in that consisting of ferrite.
The method of claim 17,

The main power segment block is a non-contact segment block for an electric vehicle, characterized in that mounted in an enclosure of a solid material.
The method of claim 20,

The enclosure is a non-contact segment block for an electric vehicle, characterized in that the concrete material.