KR101897153B1

KR101897153B1 - Structure for wireless power transfer of harbor rtgc

Info

Publication number: KR101897153B1
Application number: KR1020160174372A
Authority: KR
Inventors: 이병송; 이준호; 김명룡; 이수길; 이경표; 이건복
Original assignee: 한국철도기술연구원
Priority date: 2016-12-20
Filing date: 2016-12-20
Publication date: 2018-09-13
Also published as: WO2018117332A1; KR20180072012A

Abstract

The present invention relates to a wireless power transmission structure of a port RTGC with a modular power collecting device, In order to supply electric power to the port RTGC, a coil for supplying power to the coreless feeder is installed for power transmission to the ground. When the magnetic energy of the power supply coil is transmitted to the port RTGC through the gap in a non-contact manner And a modular power collecting device provided with an iron core and a collecting coil so as to be connected to each other and to be converted into electric energy.
According to the present invention, it is possible to increase the durability by installing a coreless feeder line that does not use a separate core (iron core) on the ground while transmitting electric power in a noncontact manner by a resonance type electromagnetic induction method, There is an effect that the installation can be made easier.

Description

[0001] STRUCTURE FOR WIRELESS POWER TRANSFER OF HARBOR RTGC [0002] BACKGROUND OF THE INVENTION [0003]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless power transmission structure of a port RTGC having a modular power collecting device, and more particularly, to a wireless power transmission structure of a port RTGC having a power source, The invention relates to a wireless power transmission structure of a port RTGC having a feeder line using only a coil and a modular power collecting device corresponding to the feeder line in a port RTGC.

Generally, the harbor type RTGC (Rubber-Tired Grantry Crane) is a yard crane equipped with a rubber wheel.

At this time, the harbor type RTGC, which uses electric power as the power source, is driven by receiving electric power in a non-contact manner. No. 10-1489405 (Reference) has been proposed as an example of such a noncontact power supply method of a crane. [0001] The present invention relates to a tire-type gantry crane for supplying electric power in a non-contact manner, the tire-type gantry crane comprising a rechargeable battery for supplying power from the inside thereof and a power supply Wherein the power supply control unit further comprises a power supply control unit for controlling power supply of the tire-type gantry crane, wherein the power supply control unit includes: The gantry cranes control the supply of power through the rechargeable battery and the power feeder, which are formed in the tire type gantry crane according to the operation state of the tire type gantry crane. The tire type gantry crane controls the movement direction of the rope, Wherein the power control unit further comprises: Wherein the power supply control unit controls the power supply to supply power to the load based on a moving direction of the rope and a tension magnitude of the rope, And supplies power from the rechargeable battery and the power feeder to a motor that operates as a load when the moving direction of the rope is a landing direction and the tension applied to the rope is equal to or greater than a reference value, When the moving direction of the rope is a lifting direction and the tension applied to the rope is less than a reference value or when the moving direction of the rope is a landing direction and the tension applied to the rope is less than a reference value, To a motor that operates as a load, and the power from the power feeder Illumination is characterized in that for use in charging the battery.

However, in the conventional non-contact power feeding system including the above references, a core is usually disposed at a predetermined interval in the feeder coil, and if the core is installed on the road surface, it may interfere with the traveling of the transportation system, The system is not obstructed but the space for the core arrangement should be ensured rather than the case of embedding only the coil and the core may be broken when the transportation system is stepped on, There was a difficult problem.

The conventional power collecting device is disadvantageous in that the coils, cores, and capacitors, which are components of the conventional power collecting device, are disposed in the enclosure, cooling of the enclosure itself is disadvantageous, There is a disadvantage in that deflection may occur and a rectifier is separated and is also vulnerable to an electromagnetic field (EMF) problem.

Reference literature: Registration No. 10-1489405

Accordingly, the present invention has been made to solve the above problems, and it is an object of the present invention to provide a feeder line on the floor for wirelessly supplying electric power during operation of port RTGC using power as a power source, The present invention provides a wireless power transmission structure of a port RTGC.

Particularly, the present invention can easily install a modular power collecting device and avoids using a core (iron core) as a feed line buried in the ground, so that the installation can be simplified and durability can be improved. And to provide a wireless power transmission structure of a port RTGC having a modular power collecting device capable of solving the problem of occurrence of a power generation problem.

Further, the present invention is not limited to the port RTGC having a modular power collecting device capable of easily disposing the modular power collecting device under the port RTGC and also having a rectifier in the modular power collecting device to solve the EMF problem The object of the present invention is to provide a wireless power transmission structure.

In order to solve such a technical problem,

In order to supply electric power to the port RTGC, a coil for supplying power to the coreless feeder is installed for power transmission to the ground. When the magnetic energy of the power supply coil is transmitted to the port RTGC through the gap in a non-contact manner The present invention provides a wireless power transmission structure of a port RTGC having a modular power collecting device, wherein a modular power collecting device having an iron core and a collecting coil is provided for linkage and conversion into electric energy.

In this case, the modular current collector is installed at a lower portion of the wheel mounting portion where the rubber wheel of the port RTGC is installed.

In addition, brackets are provided on the front and rear sides of the wheel mounting portion, supporting rods are provided to the left and right sides of the bracket, downward jigs are fixed to both ends of the supporting rods, and the modular dust collecting device is fixed to the jig .

At this time, the lower end of the jig and the modular dust collecting device are integrally fixed by fastening means.

In addition, the support bar is formed of two bars so that the length of the support bar can be adjusted.

The modular current collector includes a top plate and a bottom plate, a heat sink case disposed between the top plate and the bottom plate and having a space portion formed therein, and an iron core installed in the space portion, A core and an accumulating coil, a capacitor for holding resonance, and a heat-dissipative epoxy filling an empty space of the space.

At this time, the core core is formed in a plate shape, and the upper and lower plates are made of heat-dissipative epoxy resin, and the heat-radiating plate case is made of aluminum.

The modular power collecting apparatus further includes a rectifier for converting the AC power induced in the power collecting coil into a direct current.

According to the present invention, it is possible to increase the durability by installing a coreless feeder line that does not use a separate core (iron core) on the ground while transmitting electric power in a noncontact manner by a resonance type electromagnetic induction method, There is an effect that the installation can be made easier.

According to the present invention, since the jig is provided in the wheel mounting portion where the rubber wheel is installed, the modular power collecting device can be firmly installed in the lower portion, and the modular power collecting device is slimly manufactured to reduce the thickness of the upper and lower portions, The EMF problem can be solved by providing a rectifier.

In addition, the present invention provides a structure in which only a coil having no core is provided on the primary side to increase heat dissipation performance, and a core is formed in a flat shape on the secondary side, and the core is wrapped with a heat sink case made of a heat- The heat radiation performance is improved.

1 is a perspective view showing a wireless power transmission structure of a port RTGC having a modular power collecting device according to the present invention.
2 is a perspective view showing an assembly state of the module type power collector and the jig installed in the port RTGC according to the present invention.
3 is a view showing a jig of a port RTGC according to the present invention.
4 is a view showing an assembled state of the module type power collector installed in the port RTGC according to the present invention.
5 is a view showing an internal structure of a module type power collector installed in a port RTGC according to the present invention.
6 is an exploded perspective view of a module type power collector installed in a harbor RTGC according to the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It should be understood that various equivalents and modifications may be present.

1 to 6, a wireless power transmission structure of a port RTGC having a modular power collecting device according to the present invention is a wireless power transmission structure of a harbor type RTGC, which is connected to a coreless feed line (10) is installed to enable electric power collection in a non-contact manner through a modular power collecting device (100) installed in a harbor type RTGC by a resonance type electromagnetic induction operation, Which is the limit of conventional contact type power collecting device, while eliminating the advantages of the conventional contact type current collecting device capable of collecting electric power for the RTGC and the arc, air Friction and other electrical, environmental, and damage components to be effectively removed from the port.

Of course, the wireless power transmission structure can be used for power supply of various electric vehicles such as RMGC, YT and electric railway RTGC in addition to the port RTGC.

The coreless feeder line 10 is powered by supplying power to the modular power collecting device 100 of the port RTGC only by removing the core and embedding only the coil 12 for feeding into the general road surface, This makes it possible to stably apply it to container transportation equipment of ports such as RTGC and YT without causing interference to running.

The wireless power transmission structure of the port RTGC having the modular power collecting device according to the present invention is configured such that only the power supply coil 12 without core (iron core) is buried in the ground 1 as power supply line for power transmission, A modular power collector 100 having an iron core core 110 and a collector coil 120 for converting the magnetic energy of the power supply coil 12 to an RTGC through a gap in a non- Respectively.

In this case, in order to increase the transmission efficiency of the radio power transmitted from the power supply coil 12 on the primary side installed on the ground to the power collecting coil 120 of the modular power collecting apparatus 100 for radio power transmission, It is desirable to increase the frequency of the power using a high frequency inverter (not shown) and supply the power to the power supply coil 12 to perform high frequency resonance type wireless power transmission.

The modular power collector 100 of the secondary side mounted on the harbor RTGC is provided with a coreless feeder line 10 made of only the power supply coil 12 without the cores Magnetic energy is transmitted to the iron energy path through the gap and magnetic energy is interlinked between the iron core 110 and the collecting coil 120 of the modular power collecting apparatus 100 to be converted into electric energy, And generates the necessary electric energy.

Hereinafter, the installation structure of the module type power collector 100 of the port RTGC will be described in detail.

First, the modular power collecting apparatus 100 is fixed by a jig 30 adjacent to a rubber wheel 20 of a harbor RTGC so that only the power supply coil 12 without a core (iron core) And is supplied with power from the coreless feeder line 10.

At this time, a bracket 24 is provided on the front and rear sides of the wheel mounting portion 22 where the rubber wheel 20 of the port RTGC is installed, the bracket 24 is provided with a support rod 40 penetrating right and left, A jig 30 downward is fixed to both ends of the support rod 40 by a connecting member 50 and the modular dust collecting apparatus 100 is fixed to the jig 30. [

In this case, the jig 30 protrudes to the lower left and right sides of the wheel mounting portion 22, and the modular dust collecting device 100 is disposed at the lower portion of the wheel mounting portion 22, The dust collecting apparatus 100 is fixed. In this case, the lower end of the jig 30 and the modular dust collecting apparatus 100 are firmly and integrally fixed by fastening means such as screws.

The support rods 40 are composed of two rods 41 and 42 so that the length of the support rods 40 can be adjusted. Therefore, the support rods 40 can be installed in the RTGCs of various sizes while being adjusted in length.

On the other hand, the modular power collecting apparatus 100 is installed with a gap in the magnetic energy path of the coreless feeder line 10 buried in the ground, particularly in the running road of the port RTGC, and is supplied with electric power.

In the modular power collecting apparatus 100, a core is separated by providing a gap in the magnetic energy path of the first and second sides, and the core core 110 and the collecting coil 120 on the secondary side are separated from each other by 1 The power is collected while the port RTGC is operating while maintaining a gap of a predetermined distance from the power supply coil 12 constituting the coreless power supply line 10 on the vehicle side.

The module type power collector 100 includes an upper plate 111 and a lower plate 112 formed of a heat dissipative epoxy resin material and a space portion 113a located inside the upper plate 111 and the lower plate 112 An iron core 110 and an accumulating coil 120 installed in the space portion 113a and connected to each other to be converted into electrical energy when magnetic energy is transferred thereto, A capacitor 130 for maintaining resonance, and a heat-dissipative epoxy filling a space of the space 113a.

At this time, the core core 110 is formed into a plate shape, and the core core 110 is wrapped with a heat sink case 113 made of a heat-dissipative epoxy resin, an upper plate 111, a lower plate 112 and aluminum. , And can be made slim by lowering the vertical height.

The modular power collecting apparatus 100 may be entirely installed at the lower portion of the wheel mounting portion 22 where the rubber wheel 20 of the port RTGC is installed. At this time, a screw hole 113b is formed at both side edges of the heat sink case 113 so that the lower end of the jig 30 can be easily fixed to the fastening means 31 such as a screw.

A rectifier 140 for converting an AC power induced in the collecting coil 120 into a DC current is provided at an end of the modular power collecting apparatus 100 to solve the EMF (Electromagnetic Field) problem of other devices by the magnetic field . In this case, the rectifier 140 may be installed at the end of the heat sink case 113.

Hereinafter, the power collection principle through the wireless power transmission structure of the port RTGC having the modular power collecting apparatus according to the present invention will be described with reference to FIG. 1 to FIG.

The modular power collecting apparatus 100 collects electricity using a resonance type electromagnetic induction system. In order to constitute a coreless feeder line 10 on the primary side, which is a primary side, The module type power collector 100 as a secondary side is fixedly installed using a jig 30 at the lower portion of the wheel mounting portion 22 of the port RTGC, And is supplied with electric power from the coreless feeder line 10 during traveling. The concrete action of this will be described as follows.

The structure of the modular power collector 100 includes a power supply coil 12 buried in a traveling path and can be roughly divided into two parts as in the first and second sides of a conventional transformer. That is, there is a power supply coil 12 for supplying energy to the primary side, and a collecting coil 120 for supplying energy to the secondary side.

Unlike the primary side coil of a general transformer, the coreless feeder line 10 buried in the lower side of the primary side ground is not wound around the iron core, and a coil having a required number of turns for transmitting power proportional to the feed power When high-frequency alternating-current power is applied to the primary-side coreless feeder line 10 as a linearly arranged structure, the high-frequency alternating-current power is supplied to the alternating-current power supply line 10 through the alternating current integration law of Ampere as shown in the following equation (1) The magnetic flux is generated around the power supply coil 12 through which the current flows. The generated magnetic flux causes electric power to be generated from the power supply coil 12 on the primary side to the modular power collector 100 on the secondary side.

-------------------(One)

The AC power of the collecting coil 120 of the modular power collecting apparatus 100 is converted to DC through the rectifier 140 and supplied to various loads of the port RTGC.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. The scope of protection of the present invention should be construed under the following claims, and all technical ideas within the scope of equivalents thereof should be construed as being included in the scope of the present invention.

1: ground 10: coreless feeder line
12: power supply coil 20: rubber wheel
22: Wheel mounting part 24: Bracket
30: jig 40: support rod
50: connecting member 100: modular collector
110: core core 111: top plate
112: lower plate 113: heat sink case
120: Collector coil 130: Capacitor
140: rectifier

Claims

In order to supply electric power to the port RTGC, a coil for supplying power to the coreless feeder is installed for power transmission to the ground. When the magnetic energy of the power supply coil is transmitted to the port RTGC through the gap in a non-contact manner A modular power collecting device provided with an iron core and a collecting coil for interlinking and converting into electric energy is provided,
The modular current collector is installed at a lower portion of the wheel mounting portion where the rubber wheel of the port RTGC is installed,
The brackets are provided on the front and rear sides of the wheel mounting portion. The brackets are provided with support rods extending to the right and left sides. Downward jigs are fixed to both side ends of the support rods. The modular power collecting device is fixed to the jig,
Wherein the support rods are made of two-step rods so that the length of the support rods can be adjusted. The wireless power transmission structure of the port RTGC having the modular power collecting device.

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The method according to claim 1,
Wherein the lower end of the jig and the modular power collecting device are integrally fixed by means of fastening means.

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The method according to claim 1,
The modular power collecting apparatus includes an upper plate and a lower plate, a heat sink case disposed between the upper plate and the lower plate and having a space formed therein, an iron core disposed in the space, A power collecting structure of a harbor RTGC having a collector coil, a capacitor for maintaining resonance, and a heat-dissipative epoxy filling an empty space of the space.

The method according to claim 6,
Wherein the core core is in the form of a plate, the upper and lower plates are made of a heat-dissipating epoxy resin, and the heat sink case is made of aluminum.

The method according to claim 6,
Wherein the modular power collecting apparatus further comprises a rectifier for converting the AC power induced in the collecting coil to DC, and a modular power collecting apparatus.