KR20130096994A - Method for connecting resonant capacitor with power supply module and resonant capacitor unit therefor - Google Patents

Abstract

PURPOSE: A connection method for a resonant capacitor of a power feed module, and a resonant capacitor unit thereof are provided to remove the constraint of an installation space inside a power feed module by arranging the resonant capacitor unit between power feed modules to reduce the costs of production and maintenance by reducing the size of the power feed module. CONSTITUTION: A power feed module (200) includes a main body (201), multiple pipes (203), a power feed core (205), and a feeder cable (310). The main body is composed of a shielding material and a U-shaped gutter form. The multiple pipes pass through the inside of the main body, and are provided for a common wire. The feed core is accommodated inside the main body, and installed on the pipes for the common wire. The feeder cable passes through one of the multiple pipes for the common wire; is wound in between vertical cores (205b, 205c) on the feeder core; and forms a magnetic field according to power supply.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a resonant capacitor connecting method for a feed module, and a resonant capacitor unit for the resonant capacitor.

The present invention relates to a resonant capacitor connection method of a power supply module and a resonant capacitor unit therefor. More particularly, the present invention relates to a power feeding module for dividing a power feeding path (or a power feeding rail) into a plurality of power feeding segments and allowing a plurality of power feeding lines to supply power for each power feeding segment, And a resonance capacitor unit for the resonance capacitor.

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 power to the feed road, a large number of inverters should be provided, and since the inverter increases in price depending on the capacity, it is necessary to wire the feed line efficiently so as to supply a small amount of power to one inverter as possible.

The present applicant proposes a power feeding module that divides the power feeding path into a plurality of power feeding segments and allows a plurality of power feeding lines to supply power to each power feeding segment, thereby increasing the power supply efficiency of the inverter and reducing the capacity of the inverter Respectively.

However, when the resonance capacitor is installed in such a power supply module, the installation space is very limited and the installation is limited. In order to solve this problem, the size of the power supply module is inevitably increased and the manufacturing cost of the power supply module is increased .

Moreover, if the resonance capacitor is installed in the power supply module, there is a problem that it is difficult to maintain and repair due to a narrow space.

The present invention relates to a power feeding module for dividing a power feeding path into a plurality of power feeding segments and for supplying power to a plurality of power feeding lines for each power feeding segment, A coupling method and a resonant capacitor unit therefor are provided.

A method of connecting a resonant capacitor of a power supply module according to the present invention is characterized in that a plurality of resonant capacitors are accommodated in a unit body and then a bus bar is connected to the resonant capacitor and the bus bar protrudes through the unit body, Arranging the resonant capacitor unit between the power supply modules, and connecting the protruded bus bars to a feeder line or a common line each extending from the feeder modules.

A resonance capacitor unit according to the present invention comprises a unit body made of an insulating material and having a plurality of through holes formed in both side walls thereof, a plurality of resonance capacitors housed in the unit body, and a resonance capacitor connected to the resonance capacitor, And a plurality of bus bars protruding from the unit body through the bus bar.

As described above, according to the present invention, by disposing the resonance capacitor unit between the power supply modules, it is possible to eliminate the restriction of the installation space in the power supply module, and in particular, it is possible to reduce the size of the power supply module, .

In addition, according to the present invention, by disposing the resonance capacitor unit between the power supply modules, the accessibility to the resonance capacitor is improved, thereby achieving a subsidiary effect that the maintenance of the resonance capacitor can be conveniently performed.

FIG. 1 is a perspective view showing a state in which power feeding modules to which the resonance capacitor unit and the resonance capacitor unit according to the present invention are applied.
FIG. 2 is a perspective view showing the arrangement relationship between the power supply module and the resonance capacitor unit shown in FIG. 1 in more detail.
FIG. 3 is a plan view of the resonant capacitor unit according to the present invention shown in FIGS. 1 and 2 without a cover. FIG.
4 is a side view and a plan view showing a connection relationship of the resonant capacitor for a common line shown in FIG.
5 is a side view and a bottom view showing the connection relationship of the resonant capacitor for the feeder line shown in FIG.
FIG. 6 is a schematic view of the resonant capacitor unit according to the present invention in an exaggerated manner in order to illustrate the wiring relationship between the resonant capacitor unit and the common line.
FIG. 7 is a schematic view showing the resonance capacitor unit according to the present invention in an exaggerated manner in order to show a connection relation between a feeder line and a feeder line.

Hereinafter, embodiments of the present invention will be described in detail with reference to exemplary drawings. In adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are assigned to the same components as much as possible even though 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.

FIG. 1 is a perspective view showing a state in which power feeding modules to which the resonance capacitor connecting method and the resonance capacitor unit according to the present invention are applied, and FIG. 2 is a perspective view showing the arrangement relationship between the power feeding module and the resonance capacitor unit shown in FIG. Fig.

As shown in these drawings, the power supply module 200 includes a main body 201 having a substantially U-shaped trough shape made of a material for magnetic shielding, a plurality of common lines 203 passing through the main body 201 A feed core 205 accommodated in the main body 201 and disposed on the common wire pipe 203 and a plurality of vertical cores 205b and 205c on one of the common feed pipes 203, And a power supply line 310 that is wound in a space between the power supply lines 310 and 310 to form a magnetic field according to the supply of electric energy.

The main body 201 is made of a material such as aluminum, ferrite, or the like, so that the amount of electromagnetic field (hereinafter referred to as EMF) generated in the periphery can be reduced. Generally, EMFs are generated on feeder rails or feed rails. These EMFs can have a negative impact on people and electronics around them, so there is a need for a means to block EMF from common lines and feeder lines.

The main body 201 may be positioned within a power feeding rail on which the power feeding module 200 is to be installed. In particular, when used for high-speed trains, a rail 400 In the longitudinal direction. However, the present invention is not necessarily limited thereto, but may be embedded in, for example, a feeder road for electric vehicles.

A separate cover (not shown) is covered on the main body 201 so that the aesthetics can be improved and a protective function and an EMF shielding function can be added. In particular, a cover is essential when embedded in a feedway. Also, the main body 201 may be connected to a ground (not shown).

Further, a cooling pipe 207 extending in the longitudinal direction may be additionally mounted on the outer side wall of the main body 201. The refrigerant passing through the cooling pipe 207 may be water, air, carbon dioxide, liquefied gas, or the like. The coolant may be supplied from the outside. Further, when the cooling pipe 207 is made of a magnetic shielding material such as aluminum, it serves to reduce EMF that can not be shielded by the side vertical cores 205b on both sides of the power supply core 205. [ In addition, the cooling pipe 207 also functions as a ground on both sides, thereby securing safety.

The plurality of common lines pipes 203 are made of a magnetic shielding material such as aluminum or ferrite, for example, so that the amount of EMF generated in the surroundings can be reduced. The common line pipe 203 is prepared in units of a certain length or arbitrary length partitioned by the power supply module 200.

The power feeding core 205 is entirely made of ferrite. The power feeding core 205 made of ferrite takes a form having an "E" shaped cross section which is generally sideways, and is arranged long along the lengthwise direction of the power feeding rail. A plurality of fixing brackets 209 may be installed in the main body 201 in order to support and fix the power supply core 205 in the main body 201. These fixing brackets 209 are adhered or fixed within the main body 201 with a predetermined gap therebetween so that the power supply core 205 is mounted on the main body 201 while being separated from the bottom surface of the main body 201.

The power feeding core 205 includes a horizontal core 205a, a pair of side vertical cores 205b positioned around both ends of the horizontal core 205a, and an intermediate vertical core 205c positioned in the middle thereof do. The longitudinal length of the middle vertical core 205c is somewhat shorter than the longitudinal length of the side vertical cores 205b. Further, the middle vertical core 205c is thicker than the side vertical cores 205b by about twice the thickness. Between the horizontal cores 205a and the vertical cores 205b and 205c, a feed line 310 for supplying a magnetic field and supplying electric energy is disposed and wound.

The feeder line 310 is located above the feed core 205 in the feed module 200 as described above. For example, the feeder line 310 connected to the inverter (not shown) from which the feeder line 310 is formed forms one turn so as to completely surround the middle vertical core 205c of the feed core 205, The feeder line 310 is formed adjacent to the side vertical cores 205b on one side of the feed core 205 and forms two turns. These feeder lines are positioned below the feed core 205 and pass through the common wire pipe 203 and pass through the feed module 200 to constitute the common wire 320. [ Each of the feeder lines constituting the common line is connected to each of the corresponding inverters, so that power is supplied from each inverter.

One or more feed line resonant capacitors 110 (see FIG. 7) may be connected to each of the feed lines. Naturally, one or more common line resonant capacitors 120 (see FIG. 6) can be connected as well as a common line. The common line resonant capacitor 120 is connected to a common line between the cut ends of the common line pipe 203 and installed outside the main body 201 of the power supply module 200.

The resonance capacitors may be provided in the same number with respect to the feeder line or the common line, and the resonance capacitors may be paired to be adjacent to each other at the same point in the longitudinal direction of the feeder line or the common line. In addition, in providing the resonance capacitor, the resonance capacitors connected to the feed line or the common line may have the same capacitance.

Due to the length of the feeder line, there is a self-inductance component of the feeder line, and due to the inductance component, the voltage increases along the feeder line. A plurality of resonant capacitors are installed to compensate for the voltage due to the inductance in the feeder line You can give.

FIG. 3 is a plan view showing the resonance capacitor unit according to the present invention without a cover, FIG. 4 is a side view and a plan view showing a connection relationship of the resonance capacitor for common line shown in FIG. 3, FIG. 2 is a side view and a bottom view showing the connection relationship of the resonant capacitor for use in the present invention.

The resonance capacitor unit 100 according to the present invention includes a unit body 101 formed of an insulating material and having a plurality of through holes 102 formed on both side walls thereof, a plurality of resonance capacitors 110 And a plurality of bus bars 130 and 140 connected to the resonance capacitors 110 and 120 so as to protrude from the unit body 101 through the through holes 102.

The unit main body 101 is made of an insulating material such as plastic, wood, ceramics or the like, so that it is electrically insulated and does not affect the magnetic field flow from the feeder line. The unit main body 101 may be substantially box-like, but is not limited thereto and may be provided with a cover (not shown).

A plurality of resonance capacitors 110 and 120 are arranged in parallel in the unit body 101 and each resonance capacitor 110 and 120 is connected to the bus bars 130 and 140.

The bus bars 130 and 140 are surrounded by insulating coatings or coated with insulating coatings except for the ends, which also electrically isolate the respective bus bars 130 and 140 and affect the magnetic field flow from the feeder lines. It is not to give. (Not shown) of the feeder line 310 or the common line 320 via fasteners (not shown) made of bolts and nuts, as will be described later, ).

Hereinafter, a method of connecting the resonance capacitor to the power feeding module using the resonance capacitor unit according to the present invention will be described.

A method of connecting a resonant capacitor of a power supply module according to the present invention is characterized in that a plurality of resonant capacitors 110 and 120 are accommodated in a unit body 101 and bus bars 130 and 140 are connected to the resonant capacitors 110 and 120, And completing the resonance capacitor unit 100 by causing the bus bars 130 and 140 to protrude through the unit body 101. This resonance capacitor unit 100 is connected between the power supply modules 200 And connecting the protruded bus bars 130 and 140 to the feed line 310 or the common line 320 extending from the feed modules 200, respectively.

When connecting each of the feeder lines 310 or each common line 320 to the corresponding bus bars 130 and 140, the lugs on the respective feeder lines 310 or the common lines 320 and the end portions of the bus bars 130 and 140 (Not shown) made of bolts and nuts are used to connect them to each other.

When connecting the common line resonant capacitor 120 to the common line 320 through the common bus bar 140, the first common line resonant capacitor 121 is formed on the upper surface of the first common bus bar 141 And the resonance capacitor 121 for the first common line is connected to the lower surface of the bus bar 142 for the second common line. The first common bus bar 141 and the second common bus bar 142 extend through the through hole 102 in the opposing side wall of the unit main body 101 and extend out of the unit main body 101 do. Here, the vertical positions of the first common bus bar 141 and the second common bus bar 142 may be mutually different.

4, in the case where the common lines 320 are stacked in a multilayer structure in the power supply module 200, the first common bus bar 141 is formed on the upper surface of the first common bus bar 141, The resonance capacitor 121 is connected and the resonance capacitor 121 for the first common line is connected to the lower surface of the bus bar 142 for the second common line. At the same time, a resonance capacitor 122 for a second common line is connected on the upper surface of the third common bus bar 143, and the resonance capacitor 122 for the second common line is connected to the fourth common bus bar 144 As shown in FIG. At this time, the first common bus bar 141 to the fourth common bus bar 144 do not lie on the same plane. More specifically, the horizontal height of the first common bus bar 141 The third common bus bar 143 is positioned substantially horizontally between the horizontal height of the second common bus bar 142 and the fourth common bus bar 142 is positioned at a position higher than the second common bus bar 142, (144) is positioned horizontally.

Here, the upper and lower positions of the first common bus bar 141 and the second common bus bar 142 and the upper and lower positions of the third common bus bar 143 and the fourth common bus bar 144 are exchanged It is acceptable. 4, the fourth common bus bar 144 is positioned substantially horizontally between the horizontal height of the first common bus bar 141 and the horizontal height of the second common bus bar 142 , And the third common bus bar 143 may be located at a position lower than the first common bus bar 141.

Particularly, in the case of stacking in a multi-layered structure, the second common bus bar 142 and the fourth common bus bar 143, which extend horizontally between the first common bus bar 141 and the third common bus bar 143, It is preferable that an insulating member 160 is interposed between the bus bars 144 to prevent electrical connection. The insulating member 160 made of an insulating material can be adhesively fixed to the side surface of each of the bus bars to be touched with an adhesive.

By arranging the resonance capacitors and the bus bars in this manner, the resonance capacitor unit becomes lower than the height of the sum of the two resonance capacitors, so that the resonance capacitor unit reduced in size can be manufactured.

5, when the resonance capacitor 110 for the feeder line is connected to the feeder line 310 via the feeder bus bar 130, the first feeder bus bar 131 and the second feeder bus bar 132 are connected to a resonance capacitor for a first feeder line 111 and a resonance capacitor for a second feeder line 112 on an upper surface or a lower surface of the end portion, respectively. When the first feeder line resonance capacitor 111 is placed on the upper surface at the end of the first feeder bus bar 131, the resonance capacitor for the second feeder line 112 is formed on the upper surface of the end portion of the second feeder bus bar 132, Or when the resonance capacitor for the first feeder line 111 is connected to the lower surface at the end of the first feeder line bus bar 131, the end of the second feeder line bus bar 132 is connected to the lower surface of the second feeder line A resonant capacitor 112 must be connected.

In this state, the auxiliary bus bar 150 may be installed to connect the resonant capacitor 111 for the first feeder line and the resonant capacitor 112 for the second feeder line. That is, when the first feeder bus bar 131 and the second feeder bus bar 132 are connected to the lower part of the resonant capacitor 111 for the first feeder line and the resonant capacitor 112 for the second feeder line, The auxiliary bus bar 150 is connected to the upper part of the resonant capacitor 111 for the feeder line and the resonant capacitor 112 for the second feeder line and the resonant capacitor 111 for the first feeder line and the resonant capacitor 112 for the second feeder line, The first feeder bus bar 131 and the second feeder bus bar 132 are connected to the upper part of the first feeder line resonant capacitor 111 and the second feeder line resonant capacitor 112, A bus bar 150 is connected.

The first feeder bus bar 131 and the second feeder bus bar 132 extend through the through hole 102 on the opposing side wall of the unit main body 101 and extend out of the unit main body 101 do. Here, the left and right positions of the first feeder bus bar 131 and the second feeder bus bar 132 may be exchanged with each other. One of the first feeder bus bar 131 and the second feeder bus bar 132 may be longer than the other.

6 is a schematic view showing a connection relation between a resonant capacitor unit and a common line according to the present invention. Actually, although a plurality of common lines 320 pass through the feed module 200 through the common line pipe 203 (see FIG. 2) while being positioned below the feed core 205 (see FIGS. 1 and 2) 6, the common line 320 is schematically shown. However, both ends of the common line 320 are connected to the corresponding common bus bars 140 of the resonance capacitor unit 100 positioned opposite to each other, thereby electrically connecting to the common line resonance capacitors 120 Can be clearly seen.

7 is a schematic view showing a connection relation between a resonant capacitor unit and a feeder line according to the present invention. As shown and described above, the feeder line 310 is located on top of the feed core 205 in the feed module. The feeder line 310 surrounding the middle vertical core 205c of the feed core 205 is connected to one of the feeder bus bars 130 of the resonant capacitor unit 100. [ The other bus bar 130 for the feeder line is electrically connected to the common bus bar 140 connected to the corresponding inverter via the auxiliary wire 330 to receive power from the inverter.

According to the present invention, by disposing the resonance capacitor unit between the power supply modules, it is possible to eliminate the restriction of the installation space in the power supply module. Especially, when the common lines can be stacked in multiple layers, So that the manufacturing cost can be reduced.

In addition, according to the present invention, since the resonance capacitor unit is disposed between the power supply modules, the accessibility to the resonance capacitor is improved, so that a subsidiary effect that the maintenance of the resonance capacitor can be conveniently performed can be obtained.

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 resonance capacitor unit 100 of the present invention is described as being mounted on a power supply rail, but the present invention is not limited thereto. For example, the resonance capacitor unit 100 may be buried in a power supply path for an electric vehicle. In the case of being buried in the feeding path, a separate protecting member for sealingly connecting the power feeding module 200 and the resonance capacitor unit 100 may be further required.

The unit body 101 of the resonance capacitor unit 100 is first disposed between the power supply modules 200 and then a plurality of resonance capacitors 110 and 120 are inserted into the unit body 101. The resonance capacitor 110 The bus bars 130 and 140 protruding through the unit main body 101 after connecting the bus bars 130 and 140 to the feeder lines 310 and 140 extending from the feed modules 200, May be connected to the common line 320, and the lid may be covered.

Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe 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.

100: resonance capacitor unit 110: resonance capacitor for feeder
120: resonance capacitor for common line 130: bus bar for feed line
140: common bus bar 150: auxiliary bus bar
160: Insulation member 200: Feed module
310: feeder line 320: common line
330: auxiliary wire 400: rail

Claims (18)

A plurality of resonance capacitors are accommodated in the unit body, respectively, a bus bar is connected to the resonance capacitor, and the bus bar protrudes through the unit body to complete the resonance capacitor unit,
Placing the resonant capacitor unit between the power supply modules, and
Connecting the projected bus bars to feed lines or common lines extending from the feed modules, respectively
Resonant capacitor connection method of the power supply module comprising a. The method of claim 1,
The feed line is connected to the resonant capacitor of the feed module to form a turn is located on the top of the feed core in the feed module. The method of claim 1,
Wherein the common line is located below the feed core in the feed module and passes through the feed line through the common line pipe. The method of claim 3,
In the step of completing the resonance capacitor unit, a resonance capacitor for a first common line is connected on the upper surface of the bus bar for the first common bus, and the resonance capacitor for the first common bus is connected to the lower surface To the resonant capacitor of the power feeding module. The method of claim 3,
When the common lines are arranged in a plurality of layers in the power supply module, in the step of completing the resonance capacitor unit, a first common line resonance capacitor is connected to an upper surface of the first common line bus bar, and The first common line resonant capacitor is connected to the lower surface of the second common line bus bar, and the second common line resonant capacitor is connected to the upper surface of the third common line bus bar, and the second common line resonance The capacitor is connected to the lower surface of the fourth common line bus bar, the first common line bus bar to the fourth common line bus bar is a resonance capacitor connection method of the power supply module does not lie on the same plane with each other. The method of claim 3,
Wherein both ends of the common line are connected to corresponding bus bars of a common bus of the resonance capacitor unit located opposite to each other. The method of claim 2,
In the step of completing the resonance capacitor unit, the bus bar for the first feeder line and the bus bar for the second feeder line are respectively connected to the resonance capacitor for the first feeder line and the resonance capacitor for the second feeder line on the upper surface or the lower surface,
And the auxiliary bus bar is connected to connect the resonant capacitor for the first feeder line and the resonant capacitor for the second feeder line. The method of claim 2,
The feeder line is connected to one of the bus bars for the feeder line of the resonant capacitor unit and the remaining bus bar for the feeder line is connected to the resonator capacitor connection method of the feeder module via the auxiliary wire to the bus bar for the common line connected to the inverter . The method according to any one of claims 1 to 8,
Connection of the bus bar and the feed line or the common line is connected to the resonant capacitor of the feed module is made by a fastener. Disposing the unit body between the power supply modules,
Inserting a plurality of resonant capacitors into the unit body and connecting bus bars to the resonant capacitors, respectively;
Connecting the bus bars protruding through the unit body to feed lines or common lines respectively extending from the feed modules; and
Covering the cover to the unit body
Resonant capacitor connection method of the power supply module comprising a. A unit body made of an insulating material and having a plurality of through holes formed in both side walls thereof,
A plurality of resonant capacitors housed in the unit body, and
A plurality of bus bars connected to the resonance capacitor and protruding from the unit body through the through holes,
Resonant capacitor unit comprising a. 12. The method of claim 11,
Wherein the plurality of resonant capacitors are arranged in parallel in the unit body,
Wherein each of the resonant capacitors is connected to a corresponding bus bar. 12. The method of claim 11,
Wherein the bus bar has an outer circumferential surface covered with an insulating coating material or coated with an insulating paint except for the end portion. 12. The method of claim 11,
The bus bar is a resonant capacitor unit connected to a feed line or a common line extending from the feed module and the fastener. 15. The method of claim 14,
When the common lines are arranged in a plurality of layers in the power supply module, a first common line resonant capacitor is connected to an upper surface of a first common line bus bar, and the first common line resonant capacitor is used for a second common line. The second common line resonant capacitor is connected to the lower surface of the bus bar, and the second common line resonant capacitor is connected to the upper surface of the third common line bus bar. A resonant capacitor unit connected to the first common bus bus bar and the fourth common bus bus bar, which are not disposed on the same plane. 16. The method of claim 15,
And an insulating member for preventing electrical connection is provided between the first common bus bar and the third common bus bar or between the second common bus bar and the fourth common bus bar. 15. The method of claim 14,
When the bus bar is connected to the feed line, the first feed line bus bar and the second feed line bus bar are respectively connected to a resonant capacitor for a first feed line and a resonant capacitor for a second feed line on an upper surface or a lower surface of an end thereof.
And a supplementary bus bar provided to connect the resonant capacitor for the first feeder line and the resonant capacitor for the second feeder line. 18. The method of claim 17,
Wherein the feeder line is connected to one of the bus bars for the feeder line and the remaining bus bar for the feeder line is connected to the busbar for the common line connected to the inverter through an auxiliary wire.

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