DE102011007039A1 - Lamp body unit for e.g. lighting tower, installed at e.g. airport, to enhance night vision, has lighting modules receiving operating current and emitting light, and operating circuit dividing current supplied through individual cable - Google Patents

Abstract

The body unit (110) has an operating circuit dividing direct current (DC) current supplied through an individual cable (C) with an individual positive wire and an individual negative wire. The divided DC current is supplied to multiple power lines and converted into operating current for lighting operation. Multiple lighting modules receive operating current of the operating circuit and emit light. The operating circuit comprises a division unit that receives the DC current of a current transmission unit through the cable and divides the received DC current. An independent claim is also included for a lighting device comprising a lamp body holding unit.

Description

The present application claims the priority of Korean Patent Application No. 2010-0034234 filed with the Korean Patent Office on April 14, 2010, which is hereby incorporated by reference in its entirety.

The present invention relates to a lamp body unit for a lighting device and a lighting device, and more particularly to a lamp body unit for a lighting device and a lighting device that transmit power from a control housing unit to the lamp body unit via a single power cable, split the power, and divide the divided power into a plurality of lighting modules the lamp body unit can be prevented, wherein prevents the power cable between the control housing unit and the lamp body unit obstructing a raising and lowering of the lamp body unit.

Lighting devices are generally among the indispensable tools for everyday life. Examples of lighting devices include street lights or lighting towers. Street lights are used as night lights and are installed on roadsides or on one or both sides of paths to improve visibility at night and protect pedestrians or vehicles from accidents. Lighting towers are installed at airports, ports or docks to improve visibility at night.

Examples of the lamps used in street lights or lighting towers include incandescent lamps, mercury lamps and sodium lamps.

Although such lamps provide excellent lighting performance, but are disadvantageous because of their high power consumption.

In addition, such lamps can not sufficiently dissipate the heat, thereby shortening their life.

Furthermore, such lamps contain dangerous substances. Therefore, pollutants are produced during production and the products must be specially disposed of after use.

In recent years, the LED technology has been greatly developed. An LED has an advantageously compact structure, is environmentally friendly, has a low power consumption because the LED is a monochromatic light source, and has a longer life than other lamps.

In order to use an LED as a light source, power must be supplied to each individual LED module. Generally, the power may be supplied from a control box unit installed at or near the lamp holding unit of a street lamp, a lighting tower, etc.

To supply power from the control housing unit to each LED module, the LED modules may be associated with a plurality of power cables that supply power to the LED modules. Each of the plurality of power cables must have a predetermined sectional area to maintain the voltage level of the supplied power. For example, a plurality of power to eighteen LED modules supplying power cables each have a diameter of about 80 π.

The lamp body unit is constructed so that it can be raised and lowered to allow maintenance or to change the lighting position. However, the plurality of thick power cables reduces the flexibility, thereby obstructing movement of the lamp body unit up or down.

According to one aspect of the present invention, there is provided a lamp body unit for a lighting device and a lighting device that can supply power from a control housing unit via a single power cable to a lamp body unit, divide the power, and supply the divided power to a plurality of lighting modules in the lamp body unit preventing the power cable between the control housing unit and the lamp body unit from obstructing and lowering the lamp body unit.

According to one aspect of the present invention, there is provided a lamp body unit for a lighting apparatus, the lamp body unit comprising: an operation circuit that divides a direct current supplied via a single power cable having a single positive wire and a single negative wire, the divided direct current to a plurality of power lines feeds and converts the divided direct current into an operating current for the lighting operation; and a plurality of lighting modules that receive the operating current from the operating circuit and emit light.

The operation circuit may include: a split part that receives the direct current through the single power cable from a power conversion part, divides the received direct current, and supplies the divided direct current to a plurality of power lines; and a variety of Operating modules, each receiving the split by the dividing part direct current and supply an operating current for the operation of a corresponding lighting module of the plurality of lighting modules.

Each of the plurality of operation modules may include: an operation part that converts the direct current divided by the dividing part into an operating current and transmits the converted operating current to the corresponding lighting module; a detection part that detects the state of the divided current supplied to each of the plurality of lighting modules; and a control part that controls the supply of the operating current in accordance with the state detected by the detecting part of the current supplied to the lighting module.

The lamp body unit may further include a communication part that receives and sends signals from the outside and controls the operation of the control part.

The plurality of lighting modules may each include a plurality of LED modules that receive the operating power from the plurality of operating modules and emit light.

According to another aspect of the present invention, there is provided a lighting apparatus comprising: a lamp body unit having an operation circuit that divides the DC power supplied through a single single-core and single-negative wire into a split DC power line to a plurality of power lines and convert the divided direct current to an operating current for the lighting operation, and a plurality of lighting modules that receive the operating current from the operating circuit and emit light; a lamp body holding unit that holds the lamp body unit; and a control housing unit that supplies the DC power to the lamp body unit via the single cable.

The lamp body unit can be raised and lowered along the lamp body holding unit.

The control housing unit may include a power conversion part that converts an external alternating current into a direct current and transmits the converted direct current through the single cable to the lamp body unit.

The operation circuit may include: a split part that receives the direct current from the power conversion part via the single cable, divides the received direct current, and supplies the divided direct current to the plurality of power lines; and a plurality of operation modules, each receiving the divided by the dividing part direct current and supply the operating current to a corresponding light module of the plurality of light modules.

The plurality of lighting modules may each include a plurality of LED modules that receive the operating power from the plurality of operating modules and emit light.

The plurality of operation modules may each include: an operation part that converts the direct current divided by the dividing part into the operating current, and transmits the converted operating current to the corresponding lighting module; a detection part that detects the state of the divided direct current supplied to each of the plurality of lighting modules; and a control part that controls the supply of the operating current in accordance with the state detected by the detecting part of the current supplied to the lighting module.

The lamp body unit may further include a communication part that receives and sends signals from the outside and controls the operation of the control part.

These and other aspects, features, and advantages of the present invention will become more apparent from the following detailed description made with reference to the accompanying drawings.

1 FIG. 10 is a schematic view showing a lighting device according to an exemplary embodiment of the present invention. FIG.

2 FIG. 12 is a schematic view showing the internal configuration of a lighting device according to an exemplary embodiment of the present invention. FIG.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings. However, the invention can be implemented in other ways and is not limited to the embodiments described below. The following description serves to illustrate the invention to those skilled in the art. In the drawings, the thicknesses of layers and regions are shown enlarged for the sake of clarity. Throughout, like reference numerals are used to designate corresponding parts, with no repeated description of these parts.

As in 1 shown, a lighting device 100 According to an exemplary embodiment of the invention, a lamp body unit 110 , a lamp body holding unit 120 and a control housing unit 130 include.

The lamp body unit 110 includes at least one light module and can emit light when powered.

The lamp body holding unit 120 may extend to a predetermined height of a few meters or several tens of meters, and may be the lamp body unit 110 hold. The lamp body unit 110 can along the lamp body holding unit 120 be raised or lowered to facilitate maintenance or to change the lighting position.

The control housing unit 130 can be at a predetermined distance from the lamp body holding unit 120 spaced apart or may be integral with the lamp body holding unit 120 be educated. The control housing unit 130 can supply power via a cable C to the lamp body unit 110 respectively. In this case, the power from the control housing unit 130 to the lamp body unit 110 transmitting cables C may be configured as a single cable having a single positive wire and a single negative wire. Accordingly, a direct current from the control housing unit 130 via the cable C to the lamp body unit 110 transferred, and divided over a plurality of power lines to a plurality of lighting modules in the lamp body unit 110 in which a reduction of the cross-sectional area of the single cable is achieved compared to a structure in which power from the control box unit 130 is supplied to each of the plurality of lighting modules. Furthermore, the cable obstructs the lifting and lowering of the lamp body unit 110 Not.

A lighting device according to an exemplary embodiment of the present invention may be configured to use the single cable C described above.

As in 2 shown, the lamp body unit 110 the lighting device 100 an operating circuit 111 . 112 and a variety of light modules 113 include.

The operating circuit 111 . 112 can be a partition part 111 and a variety of operating modules 112 include.

The partition part 111 may be one of the control housing unit 130 Distribute DC power transmitted through the cable C and the split power to each of the plurality of operation modules 112 respectively. The partition part 111 can divide a current and the split current to each of the plurality of operating modules 122 while maintaining the voltage of the DC current.

The variety of operating modules 112 each converts the through the partition part 111 divided DC to an operating current and transmits the converted current to the plurality of lighting modules 113 so that they emit light.

The variety of operating modules 112 can each have an operating part 112a , a detection part 112b and a control part 112c include.

The operating part 112a can by the partition part 111 divided DC to an operating current with a voltage level suitable for the operation of the LEDs and transmits the converted current to a corresponding one of the plurality of light emitting modules 113 ,

The detection part 112b may be a condition of the operating part 112a to a variety of LED modules of the light module 113 detect the supplied operating current. For example, the detection part 112b capture if that of the operating part 112a to the plurality of LED modules transmitted operating current is in a normal or in an abnormal state.

The control part 112c can by the operating part 112a Control the power transmission. In this case, the control of the control part 112c on the basis of by the detection part 112b detected state of the current take place.

In addition, the control part 112c the through the operating part 132 control power transmission in accordance with an external control signal. A communication part 114 may be a control signal from a control circuit A to the control part 112c transmitted by communicating wirelessly or by wire with the control circuit A.

The control signal from the control circuit A may be wireless or wired to the communication part 114 be transmitted. Wireless communication does not require a cable. But even if the control signal is sent over a wired connection, the data cable for the transmission of the data has little effect on the raising and lowering of the lamp body unit 110 because it has a small cross-sectional area compared to that of the single cable C.

The control housing unit 130 can be a power conversion part 131 include.

The power conversion part 131 can convert an incoming alternating current to a direct current with a predetermined voltage level. The converted direct current becomes the division part via the single cable C. 111 the lamp body unit 110 transfer.

As described above, according to exemplary embodiments of the present invention, power is transmitted from a control housing unit to a lamp body unit using a single cable, and then the power is divided and supplied to each of a plurality of lighting modules in the lamp body unit, whereas in the prior art Technique power is transmitted from a control housing unit via a plurality of power cables to a lamp body unit. Thus, according to the present invention, the loading and lowering of the lamp body unit is not hindered by a reduced flexibility due to the thickness of the cable.

As described above, according to exemplary embodiments of the present invention, power is supplied from a control housing unit to a lamp body unit via a single power cable, the power then being split and supplied to each of a plurality of lighting modules in the lamp body unit, the power cable being connected between the control housing unit and the control unit Lamp body unit does not hinder the lifting and lowering of the lamp body unit. In this way, the lamp body unit can be easily raised and lowered.

While the invention has been described above by way of exemplary embodiments, it should be apparent to those skilled in the art that various modifications and variations can be made to the embodiments described without departing from the scope of the invention as defined by the following claims.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• KR 2010-0034234 [0001]

Claims (12)

A lamp body unit for a lighting device, the lamp body unit comprising: an operation circuit ( 111 . 112 ) which divides a direct current supplied through a single cable (C) having a single positive wire and a single negative wire, supplies the divided direct current to a plurality of power lines, and converts the divided direct current into an operating current for lighting operation, and a plurality of Illuminated modules ( 113 ), which measures the operating current from the operating circuit ( 111 . 112 ) and emit light. Lamp body unit according to claim 1, characterized in that the operating circuit comprises: a partitioning part ( 111 ), which receives the direct current from a power conversion part ( 131 ) receives across the single cable (C), divides the received DC power and supplies the split DC power to the plurality of power lines, and a plurality of operating modules (C); 112 ), each by the subdivision part ( 111 ) receive divided DC and the operating current for the operation of a corresponding light module ( 113 ) from the plurality of light modules ( 113 ) respectively. Lamp body unit according to claim 2, characterized in that the plurality of operating modules ( 112 ) each comprise: an operating part ( 112a ) passing through the subdivision part ( 111 ) divided direct current to the operating current and the converted operating current to the corresponding light module ( 113 ) transmits a detection part ( 112b ) having a state of being connected to each of the plurality of lighting modules ( 113 ) and a control part ( 112c ), the supply of the operating current in accordance with the by the detection part ( 112b ) detected state of the light module ( 113 ) supplied power controls. A lamp body unit according to claim 3, further characterized by a communication part ( 114 ), which receives signals from outside and sends them there and the operation of the control part ( 112c ) controls. Lamp body unit according to claim 1, characterized in that the plurality of lighting modules ( 113 ) each comprise a plurality of LED modules which supply the operating current from the plurality of operating modules ( 112 ) and emit light. A lighting device, comprising: a lamp body unit ( 110 ) with an operating circuit ( 111 . 112 ) which divides a direct current supplied through a single single-core single-negative-wire cable, supplies the divided direct current to a plurality of power lines, and converts the divided direct current into a lighting operation current, and a plurality of lighting modules (Figs. 113 ), which measures the operating current from the operating circuit ( 111 . 112 ) and emit light, a lamp body holding unit ( 120 ), the lamp body unit ( 110 ), and a control housing unit ( 130 ) which supplies the direct current via the single cable to the lamp body unit ( 110 ) feeds. Lighting device according to claim 6, characterized in that the lamp body unit ( 110 ) along the lamp body holding unit ( 120 ) is raised and lowered. Lighting device according to claim 6, characterized in that the control housing unit ( 130 ) a power conversion part ( 131 ) which converts an external alternating current into a direct current and converts the converted direct current via the single cable (C) to the lamp body unit (10). 110 ) transmits. Lighting device according to claim 8, characterized in that the operating circuit comprises: a division part ( 111 ), which receives the direct current from the power conversion part ( 131 ) receives across the single cable (C), divides the received DC power and supplies the split DC power to the plurality of power lines, and a plurality of operating modules (C); 112 ), each by the subdivision part ( 111 ) receive divided DC and the operating current for the operation of a corresponding light module ( 113 ) from the plurality of light modules ( 113 ) respectively. Lighting device according to claim 9, characterized in that the plurality of lighting modules ( 113 ) each comprise a plurality of LED modules which receive the operating current from the plurality of operating modules ( 112 ) and emit light. Lighting device according to claim 10, characterized in that the plurality of operating modules ( 112 ) each comprise: an operating part ( 112a ) passing through the subdivision part ( 111 ) divided direct current to the operating current and the converted operating current to the corresponding light module ( 113 ) transmits a detection part ( 112b ) having a state of being connected to each of the plurality of lighting modules ( 113 ) supplied split electricity, and a control part ( 112c ), the supply of the operating current in accordance with the by the detection part ( 112b ) detects the detected state of the current supplied to the lighting module. A lamp body unit according to claim 11, further characterized by a communication part ( 114 ), which receives signals from outside and sends them there and the operation of the control part ( 112c ) controls.

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