WO2011078552A2

WO2011078552A2 - Current-collecting apparatus including an active emf-shielding function for an online electric vehicle

Info

Publication number: WO2011078552A2
Application number: PCT/KR2010/009155
Authority: WO
Inventors: 서남표; 조동호; 임춘택; 김종우; 정구호; 허진; 이경훈; 손영동; 최주영; 박은하; 조양진; 장지철; 김윤호; 김형국
Original assignee: 한국과학기술원
Priority date: 2009-12-21
Filing date: 2010-12-21
Publication date: 2011-06-30
Also published as: WO2011078552A3; KR101038759B1

Abstract

The present invention relates to a current-collecting apparatus including an active EMF-shielding function for an online electric vehicle, and more particularly, to a current-collecting apparatus including an active EMF-shielding function for an online electric vehicle, in which a current-collecting coil is wound in the direction opposite to a secondary current-collecting coil so as to enable current to flow in the direction opposite to the direction of the current flowing along the secondary current-collecting coil, thereby reducing EMFs. According to the present invention, a sudden increase in EMFs is prevented even when the current-collecting apparatus for an electric vehicle consumes electric power in addition to an operation of a power-supplying apparatus, and delivers the electric power to a load, thereby operating the online electric vehicle in a safer and more efficient manner.

Description

Current electric vehicle current collector for ELF with active shielding function

The present invention relates to a current collector for on-line electric vehicles including an EMF active shielding function, and more particularly, to rewind the current collector coil in a direction opposite to the current collector coil on the secondary side, in a direction opposite to the current flowing in the secondary coil. The present invention relates to a current collector for an on-line electric vehicle including an active shielding function to reduce an EMF by flowing an electric current.

On-line electric vehicle feeder line shows excellent EMF characteristics even when the feeder is operated only at the reference measurement position. However, when the current collector is arranged and power consumption is generated in the current collector, the EMF around the track increases rapidly. In this case, the intensity of the generated EMF increases in proportion to the amount of current consumption on the secondary side, and when the current collector delivers power to the load, there is a problem in that the EMF around the current collector is very large.

The present invention was devised to solve such a problem, and generates power consumption in the current collector of the electric vehicle together with the operation of the power feeding device, thereby preventing the EMF from rapidly increasing even if the current collector delivers power to the load. The purpose is to enable safer and more efficient operation of on-line electric vehicles.

In order to achieve the above object, a feed core having a plurality of magnetic poles disposed at regular intervals along the road traveling direction according to the present invention, and having a width perpendicular to the road traveling direction is less than one-half the distance between the magnetic poles; A current collector for an electric vehicle, which is powered by a self-induction method from an electric vehicle feeder including a feeder line in which magnetic poles of neighboring power supply cores adjacent to each other along a road traveling direction have different polarities, is fed to a lower portion of the electric vehicle. A collector core installed spaced apart from the apparatus at a predetermined interval; A current collector coil wound around the current collector core in a loop shape; And a shielding coil wound around the current collecting core in a direction opposite to the current collecting coil to offset the EMF generated during current collection.

The current collector core may have a flat plate structure.

The current collector core may be installed in a direction perpendicular to the traveling direction of the road.

The current collector coil may be installed in a loop shape above or below the current collector core.

The current collector coil may be connected to a battery of the electric vehicle to supply power for charging the battery while the electric vehicle is running.

According to another aspect of the invention, the central core extending in the longitudinal direction of the road, respectively extending in parallel with the central core while maintaining the same distance as the width of the central core on both sides of the central core, An electric vehicle powered by a self-induction method from an electric vehicle feeder including two outer cores having the same width and a feed line disposed along a space provided between the center core and each of the outer cores and supplied with AC power. The current collector for the present invention comprises: a current collector core having a center core positioned in the center and extending in the front-rear direction, and two outer cores disposed parallel to the center core on both sides of the center core at equal intervals; A current collector coil disposed in a shape surrounding the central core in a space provided between the center core and each outer core of the current collector core; And a shielding coil wound around the current collecting core in a direction opposite to the current collecting coil to offset the EMF generated during current collection.

According to another aspect of the invention, the device for shielding the EMF using the shielding coil in the current collector, the rectifier comprising a bridge diode; A current collector coil entering the bridge diode; And a shielding coil which opens the current collector coil and winds in a direction opposite to the current collector coil to enter the rectifier.

According to the present invention, it is possible to prevent the sudden increase of the EMF even when the power supply device is operated, and the power consumption is generated in the current collector of the electric vehicle, and the power is delivered to the load. There is an effect to enable the operation of the electric vehicle.

1 is a plan view of a shielded dual type current collector using a dual type power feeder and a horizontal coil of an online electric vehicle.

2 is a front view of a shielded dual type current collector using a dual type power feeder and a horizontal coil of an online electric vehicle.

3 is a plan view of a shielded I-shaped current collector using an I-shaped power supply device and a horizontal coil of an online electric vehicle.

4 is a front view of an I-shaped current collector shielded using an I-shaped power supply device and a horizontal coil of an online electric vehicle.

Figure 5 is a circuit diagram as an embodiment for implementing a shielding method using a horizontal coil in a dual type current collector.

Figure 6 is a circuit diagram as another embodiment implementing a shielding method using a horizontal coil in a dual type current collector.

Figure 7 is a circuit diagram as an embodiment for implementing a shielding method using a horizontal coil in the I-shaped current collector.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying 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. Based on the principle that can be defined, it should be interpreted as 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.

1 is a plan view of a dual type power supply device 110 and a dual type current collector 120 shielded using a horizontal coil of an online electric vehicle.

The dual type power feeding device 110 is embedded and installed on the road, and includes a power feeding core 111 and a power feeding line 112 for generating a magnetic field through the power feeding core 111 as current flows. In the case of the dual type, the current in the opposite direction flows through the two feed lines 112 as shown in the figure.

The dual type current collector 120 is installed at the bottom of the electric vehicle, and the flat current collector core 121 and the current collector core 121 are installed in a direction perpendicular to the traveling direction of the road while being spaced apart from the power supply device 110 by a predetermined distance. ) A current coil (124.1, 124.2) wound up or down in a loop shape and connected to a battery of the electric vehicle to supply power for charging the battery while the electric vehicle is traveling, and to offset the EMF generated during the current collection. A shielding coil 125 wound around the current collector core 121 in a direction opposite to the current collector coils 124.1 and 124.2.

As shown in FIG. 2, the current shield 126 of the two current coil loops 124.1 and 124.2 is applied to the shielding coil 125 to cancel the EMF generated during the current collection. .

FIG. 2 is a front view of the dual type power supply device 110 and the dual type current collector 120 of the online electric vehicle shown in FIG.

The current collector core 121 includes a current collector core plate 121.1, a central core 121.2, and an outer core 121.3.

3 is a plan view of an I-shaped power supply device 210 and an I-shaped current collector 220 shielded using a horizontal coil of an on-line electric vehicle.

FIG. 1 is a view showing an embodiment of an I shape slim type power feeding device 210 and a current collecting device 220. The width 215 of the power feeding device 210 embedded in a road is very small. That is, one embodiment when the stimulus interval is less than one half. The magnetic pole spacing refers to the interval between the centers of the power feeding core magnetic poles 212 arranged in the road progression direction, and the width 215 of the power feeding device means the power feeding core 211 including the power feeding line 213. Means a length occupying in a direction perpendicular to the road traveling direction, and is used in the same meaning in all the drawings below. The magnetic pole 212 is a part of the power feeding core 211, and means a portion in which the magnetic field comes out, and the term 'feeding core' below, the power feeding core 211 and the magnetic pole 212 of the figure as a whole It will be written in the term.

The reason for using the name 'I-shape' is that the shape of the front view showing the cross-section of the feed core cut into a cross section perpendicular to the road progression direction is' I'-shape. Although the front view is not shown in this figure, referring to FIG. 4, it is clearly shown that the shape of the power feeding core 211 is 'I' shaped in the front view 210.

A feed line 213 is provided on the feed core 211 so that magnetic poles of the magnetic pole lines 212 of the feed core 211 are alternately formed with the N pole and the S pole, and if there is one feed line, the monorail, Two is equivalent to a dual rail. In the case of the dual rail, currents in opposite directions flow through the two feed lines, and this drawing illustrates an embodiment of a dual rail in which two feed lines 213 are installed. In this way, the width 215 of the power feeding device can be reduced to 10 cm or less, even if it is, the gap between the upper end of the pole 212 of the power feeding device embedded in the road and the current collector 220 installed in the lower part of the vehicle, that is, the gap gap. There is no problem to make more than 20cm. From the side, the feeder's construction direction is almost the same as the road progression direction, so the feeder and feeder cores are almost embedded in the road progression direction. However, even if the width 215 of the power feeding device is reduced, the power delivered is not directly proportional to the width of the power feeding line. If the power reduction is smaller than the area of the feeder line, it is advantageous in terms of cost-effectiveness.

In the case of this drawing, the magnetic pole 212 in the I-shaped current collector in order to increase the area of the magnetic pole 212 in the case of extending the road in the direction of the road showing an embodiment. In this case, the magnetic flux from the power feeding device 210 is focused by the width 226 of the current collecting module, which is twice or more wider than the gap, thereby reducing the resistance of the magnetic circuit. That is, even if the width 215 of the power feeding device is narrow, the length of the magnetic pole in the road progression direction can be smoothly delivered to the power.

In addition, the feeder may be slightly wider, perhaps 10-20 cm, if necessary to increase power delivery efficiency. However, as mentioned above, the increase in power transfer capacity due to the widening of the feeder is not significant, and is only effective for reducing the saturation magnetic flux density of the core.

The I-shaped current collector 220 is installed at the bottom of the electric vehicle, the plate-shaped current collector core 221 is installed in a direction perpendicular to the traveling direction of the road while being spaced apart from the power supply device 210 and a current collector core ( 221) a current collector coil 222 wound up or down and connected to a battery of the electric vehicle to supply power for charging the battery while the electric vehicle is running, and the current collector to offset the EMF generated during the current collection A shielding coil 223 wound around the core 221 in a direction opposite to the current collector coil 222 is included.

In addition, as illustrated, the EMF generated during current collection is canceled by an active shielding scheme in which a current 225 in a direction opposite to the current direction 224 of the current collecting coil 222 flows to the shielding coil 223.

4 is a front view of the I-shaped power supply device 210 and the I-shaped current collector 220 shielded using a horizontal coil of the online electric vehicle shown in FIG.

The feed core 211 is installed in an I-shape, and the feed line 213 is wound around the feed core 211 in a zigzag shape and inserted into the FRP (fiber reinforced plastic) tube 214. The common line and signal line cable 216 may be inserted into the FRP pipe under the feeder module. In some cases, the road may be further inserted by digging deeply into the road. In particular, in the case of a modular feeder, each modular feeder segment (feeder core module) can be individually turned on and off via the common line 216, reducing unnecessary power waste and reducing the electromagnetic field (EMF). The impact can be minimized.

5 is a circuit diagram as an embodiment of implementing a shielding method using a horizontal coil in a dual type current collector.

This is a circuit diagram of the shielding method using the horizontal coil 531 of the current collector. For this purpose, the secondary current collector coil entering the bridge diodes of the

rectifiers

510 and 520 is opened and additionally wound the coil in the opposite direction to the secondary current collector coil. The rectifier was entered.

Two current collecting coil loops 124.1 and 124.2 shown in FIG. 1 correspond to current

collecting coil loops

511 and 521 of FIG. 5 and a shielding coil 125 shown in FIG. Corresponds to the shielding coil 531 of 5). Accordingly, as illustrated in FIG. 1, the current 127 in the opposite direction to the current direction 126 of the current collector coil loops 124.1 and 124.2 flows through the shielding coil 125 to cancel the EMF generated during current collection. A current 532 in the opposite direction to the

current directions

512 and 522 of the two

current coil loops

511 and 521 of FIG. 5 is shown flowing in the shielding coil 531.

FIG. 6 is a circuit diagram of another embodiment of a shielding method using a horizontal coil in a dual type current collector. FIG.

As shown in FIG. 5, a circuit diagram of a method of shielding using a horizontal coil 631 of a current collector is performed. Additionally wound the coil to enter the rectifier.

The two current collecting coil loops 124.1 and 124.2 shown in FIG. 1 correspond to the current

collecting coil loops

611 and 621 of FIG. 6 and the shielding coil 125 shown in FIG. It corresponds to the shielding coil 631 of 6). Accordingly, as illustrated in FIG. 1, the current 127 in the opposite direction to the current direction 126 of the current collector coil loops 124.1 and 124.2 flows through the shielding coil 125 to cancel the EMF generated during current collection. It is shown that the current 632 in the opposite direction to the

current directions

612 and 622 of the two

current coil loops

611 and 621 of 6 flows through the shielding coil 631.

FIG. 7 is a circuit diagram as an example of implementing a shielding method using a horizontal coil in an I-shaped current collector. FIG.

This is a circuit diagram of the shielding method using

horizontal coils

731 and 741 of the current collector. For this purpose, the secondary current collector coil which enters the bridge diode of the rectifier 700 is opened and additionally wound the coil in the opposite direction to the secondary current collector coil. The rectifier was entered.

The

current directions

712 and 722 of the two

current coil loops

711 and 721 and the

currents

732 and 742 in opposite directions, respectively, flow in the shielding coils 731 and 741 to cancel the EMF generated during current collection.

Claims

A plurality of magnetic poles arranged at regular intervals along the road traveling direction, the feed core having a width perpendicular to the road traveling direction less than one-half the distance between the magnetic poles and the power feeding cores adjacent to each other along the road traveling direction; A current collector for an electric vehicle, which is powered by a magnetic induction method from a power feeding device for an electric vehicle, the feeder including a feeder line arranged to have a different polarity.

A current collector core installed at a lower distance from the power supply device at the bottom of the electric vehicle;

A current collector coil wound around the current collector core in a loop shape; And

Shielding coil wound in the opposite direction to the current collector coil around the current collector core to offset the EMF generated during current collection

Electric vehicle current collector comprising a.
The method according to claim 1,

The current collector core is a current collector for an electric vehicle, characterized in that the flat structure.
The method according to claim 1,

The current collector core is a current collector for an electric vehicle, characterized in that installed in a direction perpendicular to the traveling direction of the road.
The method according to claim 1,

The current collector coil is a current collector device for an electric vehicle, characterized in that installed in a loop form above or below the current collector core.
The method according to claim 1,

The current collector coil is connected to a battery of an electric vehicle to supply power for charging the battery while the electric vehicle is driving.

Current collector for an electric vehicle, characterized in that.
Central cores extending along the longitudinal direction of the road, each of the two outer cores extending in parallel with the central core while maintaining the same distance as the width of the central core on both sides of the central core, and having the same width as the central core A current collector for an electric vehicle, the electric power being supplied in a self-induction manner from a power feeding device for an electric vehicle, which is disposed along a space provided between the central core and each of the outer cores and is supplied with an AC power source.

A current collector core having a center core positioned in the center and extending in the front-rear direction, and having two outer cores disposed parallel to the center core on both sides of the center core at equal intervals;

A current collector coil disposed in a shape surrounding the central core in a space provided between the center core and each outer core of the current collector core; And

Shielding coil wound in the opposite direction to the current collector coil around the current collector core to offset the EMF generated during current collection

Electric vehicle current collector comprising a.
The method according to claim 6,

The current collector coil is connected to a battery of an electric vehicle to supply power for charging the battery while the electric vehicle is driving.

Current collector for an electric vehicle, characterized in that.
A device for shielding an EMF using a shielding coil in a current collector,

A rectifier comprising a bridge diode;

A current collector coil entering the bridge diode;

A shielding coil that opens the current collector coil and winds in the opposite direction to the current collector coil to enter a rectifier.

EMF shielding device using a shielding coil comprising a.