KR101357546B1 - Power supply module for dividing line into segment - Google Patents

Abstract

One embodiment of the present invention relates to a feed module for a separate wiring, a main body made of a material for magnetic shield, a plurality of common lines pipe passing through the main body, a plurality of common lines, the main body penetrating through the common line pipe An inverter including a feeder core accommodated therein and installed on a common line pipe, and a feeder busbar connected to one of the common lines and disposed in a space between vertical core portions on the feeder core to form a magnetic field in accordance with the supply of electrical energy. Increasing the power supply efficiency of the inverter significantly reduces the capacity of the inverter, effectively dissipates the heat generated, and can be easily assembled, ultimately greatly reducing the installation process and cost of the feeder or feed rail. It is effective.

Description

Power supply module for dividing line into segment

An embodiment of the present invention relates to a power supply module for separate wiring. More specifically, by dividing the feed route into a plurality of feed segments and by allowing a plurality of feed lines to supply power to each feed segment, a separate wiring is realized to increase the power supply efficiency of the inverter and reduce the capacity of the inverter as much as possible. By using the bus bar as a feeder line, it is possible to effectively dissipate heat generated from the feeder line, and also relates to a feeder module that can be easily assembled.

As an alternative to pollution prevention and reliance on petroleum energy, hybrid cars have been developed that selectively use electricity-driven electric vehicles and electric and internal combustion engines.

However, the electric vehicles and plug-in hybrid vehicles developed so far must be connected to an external power supply device for a long time by using a plug or the like in order to charge the battery, and the distance that can be operated by only one charge is very limited .

Therefore, in recent years, as an alternative to an electric vehicle using a battery, a magnetic induction type electric vehicle has been highlighted.

A self-induction type electric vehicle essentially requires a feed path (or a feed rail) for supplying electricity. In order to charge the electric power required for the electric vehicle (or electric train) of this type, it is sufficient to travel on the power supply road. That is, when electric power of high frequency is supplied to the feeder line while the vehicle runs on the feeder road, electric power is supplied to the electric vehicle by the principle of electromagnetic induction between the feeder cable and the current collector installed in the electric vehicle.

In order to supply electric power to such a feeder road, a large number of inverters must be provided. Since the inverter has a large price depending on the capacity, it is necessary to efficiently wire the feeder line so as to supply a small amount of electric power to one inverter.

On the other hand, the feeder is to use a cable coated with a thick insulating material, the heat generation due to the coating in the feeder of this configuration has emerged as a serious problem. In addition, although a cable feed line should be wound around the feed core, there is also a problem that its handling is not easy.
Korean Patent No. 1040662 (2011.06.03) filed and filed by the present applicant discloses a technology related to an ultra-thin power feeding device and current collector for a non-contact electric vehicle, which solves heat generation of the power feeding device or current collector. Means for doing so are not considered.
In addition, Korean Patent No. 1104813 (2012.01.04), filed by the present applicant, discloses a technology related to a power feeding device for an electric vehicle, which is protected by a concrete structure. There is no means.

The present invention divides the feeder road into a plurality of feed segments and enables a plurality of feeder bus bars to supply power to each feed segment, thereby improving the power supply efficiency of the inverter to implement a separate wiring to reduce the capacity of the inverter as much as possible. The main purpose is to provide a feed module.

In addition, another object of the present invention is to provide a power supply module that is capable of effectively dissipating heat generated from a plurality of feeder bus bars, and can be easily assembled.

A power supply module according to an embodiment of the present invention includes a main body made of a magnetic shielding material, a cover for covering the main body, a plurality of common lines pipe passing through the main body, and a plurality of common lines passing through the common line pipe. A feeder bus bar that is accommodated in the main body and installed on the common line pipe and connected to one of the plurality of common lines and disposed on the feeder core to form a magnetic field according to supply of electrical energy; A guide member disposed across the width direction of the main body on the upper surface of the bus bar, a blower provided on both sides in the longitudinal direction of the feeding core, and a filter unit installed through the side wall of the main body, wherein the blower includes external air. Blows into the space between the cover and the feeder bus bar in the main body, The outside air cools the feeder bus bar and the feed core and is guided by the guide member and discharged to the outside of the main body through the filter unit.

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As described above, according to the exemplary embodiment of the present invention, the power supply efficiency of the inverter may be increased to significantly reduce the capacity of the inverter.

In addition, by using the bus bar as a feed line, it is possible to effectively discharge the generated heat, and also there is an effect that can be easily assembled.

In addition, by modularizing the separate wiring, the effect that can ultimately significantly reduce the installation process and cost of the feed road or feed rail is obtained.

1 is a schematic block diagram illustrating an example of a power supply system to which a power supply module according to an embodiment of the present invention may be applied.
FIG. 2 is a circuit diagram illustrating a connection relationship between each inverter and a feeder bus bar to explain a power supply method of the power supply system shown in FIG. 1.
3 is a perspective view showing a state in which a power supply module is installed according to an embodiment of the present invention.
4 is a perspective view showing the power supply module shown in FIG. 3 in more detail, with the cover omitted.
5 is a schematic diagram illustrating a connection relationship between a feeder bus bar and a common line of a power supply module according to an embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail through exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

For reference, in the present specification, the feed segment is used as a term referring to a unit or a length constituting a feed path (or a feed rail). The feed segment is used as a term including a plurality of feed modules. For clarity, for example, a 1 km feed road (or feed rail) includes 5 feed segments with a length of 200 m, and each feed segment contains 10 feed modules with a length of 20 m. can do.

FIG. 1 is a schematic block diagram illustrating an example of a power supply system to which a power supply module according to an embodiment of the present invention may be applied. FIG. 2 is a view illustrating a power supply method of the power supply system shown in FIG. 1. A circuit diagram showing a connection relationship between an inverter and a feeder bus bar.

A power supply system of a power supply road (or a power supply rail) may include N power feeding segments 110 to 150 and an inverter unit 200 (where N is a natural number of 1 or more). 1 and 2 show an example where N is 5.

The DC power supply 300 may supply DC to the inverter unit 200 by receiving, for example, a single phase AC power and converting the DC power to output the DC.

The inverter unit 200 includes M inverters 201 to 210 (where M is one or more natural numbers), and each inverter may supply power to the power supply bus bus bars 401 to 410, respectively. These feeder bus bars 401 to 410 are connected to the respective inverters 201 to 210 through the common line 400.

As shown in FIG. 2, the first inverter 201 supplies power to the first feeder bus bar 401, and the second inverter 202 supplies power to the second feeder busbar 402. The Mth inverter supplies power to the Mth feeder busbars, respectively. 2 shows an example in which M is 10.

Each of the feed segments 110 to 150 may include M feed modules 500 including a feed core 505 and corresponding feeder bus bars 401 to 410, where M is one or more natural numbers. These feed modules 500 are actually aligned in their longitudinal direction within each feed segment 110 to 150 at intervals of several tens of centimeters.

Feeder bus bars 401 to 410 are located on the top of the feed core 505 in the feed module 500. Specifically, as shown in Figure 2, the first feeder bus bar 401 is the first feed module of the first feed segment 110, the first feed module of the second feed segment 120, ... The first feed module of the fifth feed segment 150 is wound on the upper portion of the feed core 505. In addition, one or more resonant capacitors 450 may be connected to the first feeder bus bar 401.

The bus bar 402 for the second feeder has a second feed module of the first feed segment 110, a second feed module of the second feed segment 120, a second feed of the fifth feed segment 150, and the like. The module is wound on top of the feed core 505. In addition, one or more resonant capacitors 450 may be connected to the second feeder bus bar 402.

Similarly, the bus bar for the M th feed line is the M th feed module of the first feed segment 110, the M th feed module of the second feed segment 120, ... from the M th feed module of the fifth feed segment 150 The winding is positioned above the feed core 505, and one or more resonant capacitors 450 may be connected to the feeder bus bar. As a result, it can be seen that the bus bars for each feeder line are located in the feed core on the feed module in each feed segment.

In FIG. 2, although portions of the feeder bus bars 401 to 410 wound on the feed core 505 are illustrated in a coil shape, the electric vehicle generates a magnetic flux and travels on a feeder road (or a feed rail). Alternatively, it means that charging power is provided to a current collector mounted on an electric train, and may actually be configured as a straight bus bar as shown in detail in FIG. 4. However, it is not necessarily limited thereto.

In FIG. 2, a circuit between A1 and A2 of the first feeder bus bar 401 is omitted and similarly, some circuits of the other feeder busbars 402 to 410 are omitted.

1 illustrates an example in which a plurality of feed segments 110 to 150 including a plurality of feed modules 500 are installed between a pair of rails 600. As described above, the longitudinal feed rail is composed of N feed segments and each feed segment is composed of M feed modules 500, if the length of the feed segment runs on the feed rail (eg High-speed train) (e.g. about 200 m) and consists of 10 feed modules 500 and each feeder busbar supplies 1 MW of power, one electric train has 10 feeder busbars The electric trains located in the feed segment are simultaneously supplied with power of 10 MW.

In this way, in supplying 10 MW of power, the feeder road (or feed rail) is divided into a plurality of feed segments, and a plurality of feeder bus bars can supply power to each feed segment, thereby increasing the power supply efficiency of the inverter. The capacity can be reduced. The efficiency of such power supply can be further increased, for example, when the length of the high speed train is designed to be equal to the length of one feed segment.

3 is a perspective view illustrating a power supply module installed state according to an embodiment of the present invention, Figure 4 is a perspective view showing the power supply module shown in Figure 3 in more detail, without the cover.

As shown in these drawings, the power feeding module 500 according to the embodiment of the present invention includes a main body 501 having a substantially 'U' trough shape made of a magnetic shielding material, and the inside of the main body 501. A plurality of common line pipes 503 passing through, a plurality of common lines 400 penetrating through these common line pipes 503, a power feeding core 505 accommodated in the main line pipe 503 while being accommodated in the main body 501 And a bus bar for a feeder line connected to one of the plurality of common lines 400 and disposed in a space between the vertical cores 505b and 505c on the feed core 505 to form a magnetic field according to the supply of electrical energy (FIG. In the example 4, the bus bar 401 for the first feeder wire is representatively positioned above the feed core 505.

The main body 501 is made of a material such as aluminum or ferrite, for example, and can reduce the amount of electromagnetic fields (hereinafter referred to as EMF) to the surroundings. EMFs typically occur on feedways or feed rails, which can adversely affect the people and electronics that pass through them, preventing the EMF from common lines 400 and feeder busbars. Means are needed.

The main body 501 may be located in a feed rail to which the feed module 500 of the present invention is installed. In particular, when used for a high-speed train may be disposed parallel to the longitudinal direction of the rail 600 on the sleeper 610 between a pair of rail (600). However, the present invention is not necessarily limited thereto, but may be embedded in, for example, a feeder road for electric vehicles.

The cover 506 may be covered on the main body 501 so that the aesthetics and the protection function can be added. In particular, a cover is necessary when it is buried in the feeder road. The cover 506 is preferably formed of an insulating material such as plastic or wood. The cover 506 may be sag due to its own weight, and a plurality of cover supports 508 may be installed to prevent such sag. Description of the lid support 508 will be described later.

The body 501 may be connected to a ground (not shown).

In addition, when the power supply module 500 of the present invention is used for a high-speed train, when the high-speed train stops on the platform in the history, there is a fear that a lot of heat due to the power supply during the stop time. In order to solve this problem, a cooling tube 507 extending in the longitudinal direction may be further mounted on the outer sidewall of the main body 501. As the refrigerant passing through the cooling tube 507, water, air, carbon dioxide, liquefied gas, or the like may be used. The refrigerant may be supplied from the outside. Further, when the cooling tube 507 is made of a magnetic shielding material such as aluminum, for example, it serves to reduce EMF that is not shielded at the side vertical cores 505b on both sides of the power feeding core 505. In addition, the cooling pipe 507 also plays a role of grounding on both sides, thereby ensuring safety.

Many common line pipes 503 are made of a material for magnetic shielding, such as aluminum and ferrite, for example, so that the amount of EMF generated to the surroundings can be reduced. The common line pipe 503 is prepared in a predetermined length or a predetermined length unit partitioned by the power supply module 500. The common line pipe 503 may include a separate coupling (not shown) to be connected to the common line pipe 503 of another power supply module 500 adjacent in the longitudinal direction, and the common line pipe 503 In consideration of the expansion or contraction in the longitudinal direction due to thermal expansion, it is preferable that the ends of the common line pipes 503 adjacent to each other in the coupling are spaced apart from each other.

A plurality of common lines 400 are arranged to penetrate through the common line pipe 503 in pairs. The feed module is alternately arranged at a predetermined interval, and there is one corresponding feed module per feed segment. As described with reference to FIG. 2, each common line 400 is capable of supplying power to the feeder busbars 401 to 410 from the respective inverters 201 to 210.

In the power supply module 500 of the present invention, the common line pipes 503 through which the common lines 400 pass may be stacked in a plurality of layers. In this case, the width of the power supply module 500 may be reduced in size. The cost can be reduced.

The feed core 505 is entirely made of ferrite. The feed core 505 made of ferrite generally has a shape having an 'E' cross section lying sideways, and is disposed long along the length of the feed road or the feed rail. In order to fix the power feeding core 505 in the main body 501, a plurality of fixing brackets 509 may be installed in the main body 501. These fixing brackets 509 are bonded or fixed to the main body 501 at predetermined intervals, so that the power feeding core 505 is mounted to the main body 501 while being spaced apart from the bottom surface of the main body 501.

The feed core 505 has a horizontal core 505a, a pair of side vertical cores 505b positioned around both front ends of the horizontal core 505a, and an intermediate vertical core 505c positioned in the middle thereof. do. The longitudinal length of the intermediate vertical core 505c is equal to or slightly shorter than the longitudinal length of the lateral vertical cores 505b. A feeder bus bar 401 is disposed between the horizontal core 505a and the space formed by the vertical cores 505b and 505c to supply electric energy to form a magnetic field.

The feeder bus bar 401 is located above the feed core 505 in the feed module 500 as described above. More specifically, the feeder bus bar 401 is formed in a plate shape and is disposed on the horizontal core 505a to form one turn. The feeder bus bar 401 is made of a metal having excellent electrical conductivity, for example, copper, and is preferably coated with a protective film or paint on the outer circumferential surface in order to prevent oxidation and rust.

One or more resonant capacitors 450 may be connected to both ends of each feed line bus bar 401. The resonant capacitor 450 may be provided in the same number of feeder bus bars 401, and the resonant capacitor 450 may be paired to be adjacent to each other at the same point in the longitudinal direction of the feeder busbar. . In addition, in installing the resonant capacitor 450, for the convenience, the resonant capacitor 450 connected to the feeder bus bar 401 may be configured to have the same capacity.

Naturally, one or more resonant capacitors 450 may be connected to the common line 400 as well. At this time, the resonant capacitor 450 is connected to the common line 400 between the cut ends of the common line pipe 503 is installed.

Due to the length of the bus bar or the common line, the inductance component of the bus bar or the common line may exist as well as the voltage may increase along the bus bar or the common line due to the inductance component, and the plurality of resonant capacitors 450 By being installed, it is possible to compensate and lower the voltage due to inductance in the busbar or common line.

5 is a schematic diagram illustrating a connection relationship between a feeder bus bar and a common line of a power supply module according to an embodiment of the present invention. As shown in FIG. 5, resonant capacitors 450 are provided in series at both ends of a feeder bus bar 401. Connected. One side of the resonant capacitor 450 is connected and fixed to the feeder bus bar 401, and the other side of the resonant capacitor 450 is connected and fixed to the connection bus bar 420. The connection bus bar 420 is electrically connected to the common line 400 connected to the corresponding inverter among the plurality of common lines 400 through an auxiliary wire 430, and ultimately, a bus bar for feeders 401 is supplied with power from the inverter. The connection bus bar 420 may extend downward through the extension of the fixing bracket 509, and an opening (not shown) may be formed in the extension of the fixing bracket 509.

In addition, a plurality of cover supports 508 may be arranged on the top surface of each feeder bus bar 401 to prevent the cover 506 from sagging by its own weight. These cover supports 508 are formed of an insulating material, such as plastic or wood, and preferably consist of a rod having a substantially rectangular cross section. The length of the lid supporter 508 is shorter than half the length of the feeder bus bar 401. Since the lid support 508 is formed of an insulating material, the magnetic field flow from the feeder bus bar 401 is not affected.

In addition, the power supply module 500 according to an embodiment of the present invention, a blower (511) installed on both sides of the power supply core 505, the side vertical core (505b) and the main body of the power supply core 505 ( The filter unit 512 provided through the side wall of the 501 is included.

As shown in FIG. 4, the blower 511 is installed on an extension of the fixed bracket 509 supporting the feed core 505 to cover the outside air of the feed module 500 with the cover 506 and the feed line. Blow into the space between the bus bars 401. In this case, a plurality of cover supports 508 are arranged in the space between the cover 506 and the feeder bus bar 401, and the introduced outside air flows between the cover supports 508. In this way, the blower 511 forcibly introduces external air, so that low-temperature air cools the feeder bus bar 401 and the feed core 505. The blower 511 is connected to a separate power source to receive power.

The air heated up through the feeder bus bar 401 and the feed core 505 passes through the side wall of the feed core 505 and the side wall of the main body 501. Through it is discharged to the outside of the feed module 500 again. Since the length of the lid support 508 ends near the filter portion 512, the air flowing between the lid supports 508 is able to merge its flow from the inside to the filter portion 512.

Here, a guide member 513 disposed to cross the width direction of the feed module 500 may be provided on an upper surface of the feeder bus bar 401 to allow the heated air to move toward the filter unit 512. The guide member 513 is provided between both filter portions 512 in the space between the cover 506 and the feeder bus bar 401. The guide member 513 is also formed of an insulating material such as plastic or wood, for example, and may be composed of a rod or plate member having a substantially rectangular cross section.

The filter unit 512 may discharge hot air, but prevents the inflow of moisture or fine dust from the outside. Since the filter unit is already well known, a detailed description thereof will be omitted herein.

As described above, according to an embodiment of the present invention, by using the bus bar as a feed line, it is possible to effectively discharge heat generated than a feed line in the form of a cable, as well as the effect that can be easily assembled. do. Moreover, by having a blower for forced air cooling, the heat dissipation effect can be further increased.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention.

In the present specification, the power supply module 500 of the present invention has been described with reference to an example installed on a power supply rail, but is not necessarily limited thereto. For example, the power supply module 500 may be buried in a power supply road for an electric vehicle.

Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

110 to 150: power supply segment 200: inverter unit
300: DC power supply 400: common line
401 to 410: Busbar for feeder 450 450: Resonant capacitor
500: power supply module 501: main body
503: common pipe 505: feed core
506: cover 507: cooling tube
508: cover support 509: fixing bracket
511: blower 512: filter unit
513: guide member 600: rail

Claims (18)

Body made of magnetic shielding material,
A cover for covering the main body,
A plurality of common pipes passing through the body,
A plurality of common lines passing through the common line pipe,
A feeding core accommodated in the main body and installed on the common line pipe,
A feeder bus bar connected to one of the plurality of common lines and disposed on the feed core to form a magnetic field according to supply of electric energy;
A guide member placed across the width direction of the main body at an upper surface of the feeder bus bar,
A blower respectively installed at both sides in the longitudinal direction of the feeding core, and
A filter part installed through the side wall of the main body,
The blower blows outside air into the space between the cover and the feeder bus bar in the main body, and the introduced outside air cools the feeder busbar and the feed core and is guided by the guide member. A power supply module characterized in that discharged to the outside of the main body through a filter unit. The method of claim 1,
Cooling tubes extending in the longitudinal direction is mounted on the outer side wall of the main body,
A power supply module, characterized in that the refrigerant passes through the cooling tube. The method of claim 1,
The plurality of common lines are disposed through the pair of common lines in pairs,
The feed module, characterized in that the common line pipes are arranged in a multi-layer stack. Claim 4 has been abandoned due to the setting registration fee. The method of claim 1,
A feeding module, characterized in that a fixing bracket is installed in the main body to fix the feeding core in the main body. The method of claim 1,
The feeding core includes a horizontal core, a pair of side vertical cores positioned at both ends of the horizontal core, and an intermediate vertical core positioned in the middle of the side vertical cores, wherein the longitudinal length of the intermediate vertical core is A feed module, characterized in that it is equal to or shorter than the longitudinal length of the side vertical cores. The method of claim 1,
A feed module, characterized in that a resonant capacitor is connected in series between the feeder bus bar and one of the plurality of common lines. The method according to claim 6,
One side of the resonant capacitor is connected and fixed to the feeder bus bar, the other side of the resonant capacitor is connected and fixed to the connection bus bar,
The connection bus bar is a power supply module, characterized in that connected to one of the plurality of common lines via an auxiliary wire. delete Claim 9 has been abandoned due to the setting registration fee. The method of claim 1,
A feed module, characterized in that a plurality of cover supports are arranged on an upper surface of the feeder bus bar to support the cover to prevent sagging. Claim 10 has been abandoned due to the setting registration fee. 10. The method of claim 9,
Feeding module, characterized in that the cover or the cover support is made of an insulating material. Claim 11 was abandoned when the registration fee was paid. 10. The method of claim 9,
Feeding module, characterized in that the length of the cover support is shorter than half the length of the feeder bus bar. 6. The method of claim 5,
And the filter unit is installed through the side vertical core of the feed core and the side wall of the main body when the feed core includes a pair of side vertical cores. Claim 13 has been abandoned due to the set registration fee. 5. The method of claim 4,
The blower is a power supply module, characterized in that installed on the extension of the fixing bracket. delete delete delete delete delete

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