KR20160009304A - LED lamp for ships - Google Patents

Abstract

The present invention relates to a ship LED lamp of 36 W which protects an LED and power supply from over voltage, over current, and surge which are caused by unstable power of a ship, can endure temperature change, which can be generated by sailing for a long time, vibration generated by wind, water, and salt, and can be operated stably as total harmonics distortion (THD) is reduced. The ship LED lamp includes at least one LED module, a heat dissipating plate, a diffusion cover, a globe, a reflection plate, a power circuit, a reflection plate coupling bracket, and a fixation bracket. The power circuit includes: a circuit which is arranged in parallel in input current power and attenuates surge instant over voltage or surge current which is applies from power; and a circuit which senses over current and adjusts or limits the over current into rated current.

Description

LED lamp for ships with overvoltage, overcurrent, surge and power supply protection,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an LED lighting device, and more particularly, to an LED lighting device capable of generating an LED light with a long time while being protected from overvoltage, overcurrent, surge, Which can withstand vibration, waterproofing, salt and the like due to temperature change, air volume, and the like, and can lower the harmonic content (THD) and operate the lighting stably.

Generally, in the residential area of the ship, the ceiling or the wall of the engine room, the deck area, etc., there is a lighting lamp that can illuminate the ship. However, the incandescent lamp, which was used as general light for ships, was easily destroyed due to engine room vibration. I have also introduced an earthquake-resistant incandescent lamp, but after long-distance voyages, many lights were replaced with new ones, which made maintenance costs expensive. In particular, the fluorescent lamps have a high power consumption, which is disadvantageous to use in trading vessels operating for several tens of days.

In the meantime, as the development and distribution of LED lighting has spread and become active in the 21st century, the interest in LED lighting for ships has increased. Most of marine luminaires, It is incomplete without taking into consideration the special situation of marine use, and it is impossible to obtain various types of marine type approval.

Particularly, since the light weight of the lighting must be low due to the vibration of the ship and the influence of the waves due to the influence of the ship such as the LED lighting for ships, the LED chips are accumulated, and the heat dissipation Unique heat dissipation design that differentiates from structure is needed.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems of the prior art. SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a vibration control device and a vibration control method thereof that can prevent vibration due to a temperature change and a wind amount that can be generated due to a long voyage while protecting an overdrive, , Waterproof, saline, and the like, and can reduce the harmonic content (THD) and operate the lighting stably.

Technical Solution In order to accomplish the above object, the present invention provides a ship LED illumination device comprising a housing having one side opened and a receiving portion formed on the inside thereof, a hollow portion of a power socket to be connected to an external power source, A power supply circuit for supplying a driving power, an LED module, and a plurality of through holes formed in the LED module, wherein the plurality of through holes are formed in the LED module, An LED heat sink for fixing the power supply circuit and the LED module by being electrically connected to a terminal provided on the power supply circuit located on the other side through the through hole and a light emitting diode coupled to one side of the housing, And a diffusion cover for diffusing and discharging the electric power to the outside, It is configured in parallel to the force which the AC power supply may include a circuit for controlling or limiting to the rated current to detect an over-current circuit and to attenuate the instantaneous over-voltage and surge current that is applied from the AC power source.

The housing may have a plurality of coupling grooves formed along a side edge thereof, and the diffusion cover may include a plurality of coupling tabs to be fitted into the coupling grooves along a side edge.

The junction of the housing and the diffusion cover may further include a ring-shaped gasket.

Wherein the fixing bracket includes a body plate having a hollow portion of a power socket to be connected to the external power source and having both ends vertically extended toward the housing and having a through hole formed in the vertically extended portion, A side plate, a spring, and a bolt.

In the fixing bracket, a bolt combined with the spring may be engaged with the slide handle through the housing, the body plate, and the side plate within the housing.

The fixing bracket may further include a mountain bracket that is fixed so as to be suspended on a ceiling of a ship or the like.

The fixing bracket may be coupled with the slide handle through bolts coupled with the spring through the housing, the body plate, the mountain bracket, and the side plate within the housing.

In the fixing bracket, the mountain bracket may be screwed to both sides of the housing.

The power supply circuit includes an AC stabilization module that transmits AC power input through a commercial power supply to a power supply device, a power supply device that converts AC power from the AC stabilization module to DC power, And a DC stabilization module that supplies driving power to the LED module.

The AC stabilization module includes a current limiting unit for attenuating overvoltage and surge, a current sensing unit for sensing a current of an input AC power source, and a controller for controlling a current of the AC power source according to a sensing signal from the current sensing unit, And a current control unit for outputting the current control signal.

The surge absorber may include a surge absorber configured in parallel with the input AC power source to reduce an instantaneous overvoltage or a surge current of an instantaneous overvoltage or a surge current applied from the power source, And may include a varistor for absorbing a momentary overvoltage or a surge current from an instantaneous overvoltage or a surge current applied from a power source, and a line filter for removing noise from an input AC power source.

The current limiting unit includes three surge absorbers (Ab1 to Ab3) arranged in parallel to the input AC power sources (AC_L and AC_N), and at least one or more of the surge absorbers And a line filter for eliminating noise from the varistors (MOV1 to MOV10) and the 10KV / 5KA class circuit including the line filter.

The current limiting unit includes a 15KV / 7.5KA class circuit including varistors (MOV1 to MOV18) formed of at least one AC power source AC_L and AC_N in parallel and two line filters for removing noise, Lt; / RTI >

The current control unit may include at least two capacitors (capacitors) configured in parallel.

The power supply may be designed as a flyback converter, and may include a one-stage PFC circuit and an LC series resonant filter.

The DC stabilization module includes a driving power sensing unit formed corresponding to each of the output terminals connected to the plurality of driving power supply lines and sensing a connection state of the driving power supply lines, And a driving power controller for controlling whether the driving power is output to the LED module.

In the ship LED light according to the present invention, the heat sink having the LED module fixed thereto is seated in the housing, and the diffusion cover is closely contacted and engaged with the housing, and a gasket It is resistant to vibration due to air volume and the like, and can withstand water, salt, and the like. Also, it can be combined easily and quickly without assembly error, and it is easy to maintain by one-touch type LED illumination replacement method.

In addition, it is possible to rectify the AC power input from the commercial power supply, to remove the noise, to stabilize the power supply circuit from surges caused by natural phenomena such as lightning, lightning, and overvoltages caused by external electrical work or unstable power supply And the rated life can be maintained.

Furthermore, the harmonic content (THD) is greatly reduced to improve the stability of the power supply circuit and LED lighting. The PFC circuit and the PWM circuit design, which minimizes the reactive power consumption, prevent power loss and prevent power failure, power supply instability, It prevents reverse voltage and reverse current caused by cause.

1 is an external perspective view of a ship LED illumination according to an embodiment of the present invention.
2 is an exploded view of a ship LED illumination according to an embodiment of the present invention.
3 is an exploded view of a fixing bracket according to an embodiment of the present invention.
4 is an internal block diagram of a power circuit of a ship LED illumination according to an embodiment of the present invention.
5 is an internal configuration diagram of the AC stabilization module shown in FIG.
6 is a circuit diagram of a 10KV / 5KA class overvoltage, overcurrent, and surge protection module according to an embodiment of the present invention.
7 is a circuit diagram of a 15KV / 7.5KA class overvoltage, overcurrent, and surge protection module according to an embodiment of the present invention.
8 is a circuit diagram of a 36 W power supply (SMPS) according to an embodiment of the present invention.
9 is an internal configuration diagram of the DC stabilization module shown in FIG.
FIG. 10 is a chart showing the result after a test on a 36W-class ship LED illumination according to an embodiment of the present invention was conducted by the Korea Institute of Lighting Research.

The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text.

It should be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. The terms first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprising" or "having ", and the like, are intended to specify the presence of stated features, integers, steps, operations, elements, parts, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, parts, or combinations thereof.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is an external perspective view of a ship LED light according to an embodiment of the present invention. FIG. 2 is an exploded view of a ship LED light according to an embodiment of the present invention. Fig.

As shown in FIGS. 1 and 2, the ship LED illumination of the present invention includes a fixing bracket 100 for fixing LED lights to be suspended on a ceiling of a ship, a housing 200 for forming a space for accommodating a plurality of components, A power supply circuit (not shown), an LED heat sink 400, an LED module 500, a diffusion cover 600 coupled to the upper side of the housing 200, and a connection portion 600 of the housing 200 and the diffusion cover 600 And a gasket (300) for maintaining airtightness of the gasket (300).

The fixing bracket 100 of the present invention includes a main body plate 110 for supporting a ship LED illumination, a mountain bracket 120 for fixing the main body plate 110 so as to be suspended on a ceiling of a ship, And includes a slide handle 130, a side plate 140, a spring 150,

The body plate 110 is formed with a hollow 112 of a power socket to be connected to an external power source and has both ends vertically extended toward the housing 200 and a through hole do. 3, the body plate 110 according to the embodiment of the present invention is provided with a slide handle 130 and a side plate 140 on the outside of a vertically extended portion of the body plate 110 And a bolt 160 coupled to the spring 150 are coupled to the slide handle 130 through the housing 200, the body plate 110, and the side plate 140 in the housing 200 .

A mount bracket 120 is inserted between the side plate 140 and the main body plate 110 so that the housing 200 and the main body blades 110 are inserted into the housing 200 by the bolts 160. [ The mountain bracket 120 and the side plate 140 so as to be coupled to the slide handle 130. Only the mountain bracket 120 may be screwed on both sides of the housing.

Accordingly, the fixing bracket 100 according to the embodiment of the present invention has a structure in which the main body plate 110 and the mountain bracket 120 are easily attached to and detached from both sides of the housing 200, It is also strong against vibration due to air volume and so on.

The housing 200 is opened at one side and a hollow 210 of a power socket for connecting to an external power source is formed at the center of the other side. In addition, the housing 200 is formed with a plurality of coupling grooves (not shown) along the side surface thereof for fastening with the diffusion cover 600. The housing 200 may have a rectangular parallelepiped shape, but the shape of the housing 200 is not limited thereto.

The power supply circuit converts an AC power supplied from the outside into a DC power and supplies it to the LED module 500. In particular, the power supply circuit of the present invention includes a circuit that is formed in parallel with an input AC power source and that attenuates an instantaneous overvoltage or surge current applied from a power source, and a circuit that detects an overcurrent and adjusts or restrains the rated current, Surge and power supply protection.

The LED module 500 is coupled to the LED heat sink 400 to generate light, and a plurality of LEDs may be mounted on the upper surface of the LED module 400 to be designed as an independent unit module.

The LED heat sink 400 is formed to have a size corresponding to the upper end of the housing 200 and at least one through hole 410 is formed to allow the LED module 500 to pass through the LED heat sink 400 And is connected to the power supply circuit. That is, the LED module 500 is located at the upper portion of the LED heat sink 400, the power supply circuit is located at the lower portion of the LED heat sink 400, and the terminals provided in the LED module 500 through the holes 410 The power supply circuit and the LED module 500 are fixed to the LED heat sink 400 by being electrically connected to terminals provided on the power supply circuit through the LED heat sink 400.

As described above, in the marine LED lighting according to the present invention, the power supply circuit is provided in the illumination, and the terminal provided in the power supply circuit is connected to the terminal provided in the LED module 500, The wiring structure can be remarkably simplified, and the LED module 500 and the power supply circuit are fixed to the LED heat sink 400, which is advantageous in that the LED module 500 and the power supply circuit are resistant to vibration due to airflow and the like.

The LED heat sink 400 is fixedly coupled to the housing 200 by fitting fittings (not shown) formed inside the housing 200 with fitting grooves 420 formed at regular intervals along the outer circumference of the body . The LED heat sink 400 is preferably made of a special aluminum alloy material having excellent thermal conductivity.

The diffusion cover 600 is coupled to the housing 200 to seal the inside of the housing 200 from the outside and diffuses light emitted from the LED module 500 to the outside and emits the light. Accordingly, the light radiated to the front portion of the LED module 500 is uniformly illuminated by the diffusion cover 600, so that stable surface light emission is performed, thereby reducing glare caused by point light emission. The diffusion cover 600 is preferably a transparent or semi-transparent synthetic resin, preferably polycarbonate (PC).

The diffusion cover 600 is provided with a plurality of coupling protrusions 610 along the side surface thereof to be fitted into the coupling groove (not shown) of the housing 200 to be fitted into the housing 200. At this time, since the engaging jaw 610 is provided at predetermined intervals, the contact pressure of the contact surface between the engaging groove and the engaging jaw is uniformly generated, thereby improving the waterproof efficiency.

In addition, a gasket (300) is provided on the joint between the diffusion cover (600) and the housing (200) so as to prevent water from flowing into the interior of the vessel in order to further increase the waterproof efficiency from moisture or seawater in the vessel.

Hereinafter, a method of assembling a ship LED light according to an embodiment of the present invention will be described.

First, the connection terminal of the LED module 500 is inserted into the through hole 410 of the LED heat sink 400 and connected to a power supply circuit located on the other side of the LED heat sink 400. Next, the LED heat sink 400 is mounted on the housing 200 to be inserted into the housing 200, and the diffusion cover 600 and the housing 200 are fitted to each other.

Accordingly, the LED heat sink 400 is fitted to the housing 200 in a state of being seated, and the diffusion cover 600 is tightly coupled with the housing 200 in a form of being engaged with the housing 200, , Waterproofing, salt and so on. In addition, it is possible to easily and quickly join without an assembly error, and maintenance is easy.

Hereinafter, a power supply circuit of a ship LED illumination according to an embodiment of the present invention will be described.

In order to develop a 36W-class power supply circuit used in shipboard LED lighting of the present invention, it is necessary to control the output voltage and the current according to the LED drive voltage and to protect the power supply circuit 10KV / 5KA protection circuit or 15KV / 7.5KA protection circuit shall be constructed.

To this end, the present invention applies a one-stage method in order to realize high efficiency in a 36 W power supply circuit, and is designed using a flyback method in order to reduce the size of the circuit. In addition, the AC stabilization module rectifies the AC power supply and eliminates noise. By designing to generate a constant output by adopting the current mode method through the PWM control, the overvoltage, the overcurrent, and the surge ) Designed to protect the power supply and LED module.

4 is an internal block diagram of a power supply circuit of a ship LED illumination according to an embodiment of the present invention, FIG. 5 is an internal configuration diagram of the AC stabilization module shown in FIG. 4, FIG. 7 is a circuit diagram of a 15KV / 7.5KA class overvoltage, overcurrent and surge protection module according to an embodiment of the present invention. FIG. 7 is a circuit diagram of an overvoltage, overcurrent, and surge protection module of 15KV / FIG. 8 is a circuit diagram of a 36 W power supply SMPS according to an embodiment of the present invention, and FIG. 9 is an internal configuration diagram of the DC stabilization module shown in FIG.

4, the power supply circuit 700 of the present invention includes an AC stabilization module 710 and an AC stabilization module 710 for transmitting AC power input through a commercial power supply to the power supply 720 And a direct current stabilization module 730 for supplying the drive power outputted from the power supply unit 720 to the LED module 500. The power supply unit 720 converts AC power to DC power,

First, the AC stabilization module 710 attenuates and absorbs an instantaneous overcurrent, overvoltage, or surge current generated from the AC power supplied from the commercial power supply, protects the power supply circuit 700, and adjusts the current of the output voltage to be constant. 5, the AC stabilization module 710 includes a current limiting unit 712 for attenuating overvoltage and surge, a current sensing unit 714 for sensing an input current, and a current sensing unit 714, And a current control unit 716 for controlling the current of the AC power according to a detection signal from the AC power source.

The current limiting unit 712 includes three overvoltage protection surge absorbers Ab1 to Ab3, which are arranged in parallel to the AC power sources AC_L and AC_N input as shown in FIG. 6 at 10KV / 5KA class, (MOV1 to MOV10, varistor) for overvoltage protection constituted in parallel with at least one AC power source constituted and input at the rear of each surge absorber, and a line filter for removing noise.

The surge absorbers Ab1 to Ab3 attenuate the initial instantaneous overvoltage or surge current in the instantaneous overvoltage or surge current applied from the power source and the varistors MOV1 to MOV10 attenuate the instantaneous overvoltage or surge current from the overvoltage or surge current applied from the power source, It absorbs current and protects circuit of power supply circuit.

The surge current is a very short time, but the waveform and amplitude vary according to the flowing time. At first, the waveform is high and the amplitude is small. However, as time passes, the waveform becomes low and the amplitude becomes large. Accordingly, since the surge absorbers Ab1 to Ab3 have a faster reaction speed than the varistors MOV1 to MOV10, they are disposed in front of the varistors MOV1 to MOV10 to attenuate the surge current input to the AC stabilization module 710 first, The varistors (MOV1 to MOV10) absorb the surge current that flows without being attenuated in the absorbers (Ab1 to Ab3). That is, among the input surge currents, the surge currents of the initial surge currents, that is, the surge currents with high peak and short cycle are attenuated in the surge absorbers Ab1 to Ab3, the surge currents in which the latter peak is low, The MOV 10 absorbs and absorbs the surge current input to the AC stabilization module 710 completely.

7, a varistor for overvoltage protection (MOV1 to MOV18, varistor) constituted by at least one or more AC power sources AC_L and AC_N in parallel, as shown in FIG. 7, and two line filters Line Filter).

The current sensing unit 716 senses the current of the AC power input to the AC stabilization module 710 and transmits a sensing signal to the current control unit 714. In particular, when the overcurrent is input from the commercial power source due to a cause such as a lightning strike, a lightning strike, an external electrical operation, unstable power supply, or the like, the current sensing unit 716 senses an overcurrent input, (714).

The current control unit 714 controls the current value of the AC power output to the power supply unit 720 based on the sensing signal input from the current sensing unit 716. For example, when the current detection unit 716 detects that the overcurrent is inputted from the commercial power supply, the current control unit 714 adjusts or limits the input overcurrent to the rated current and outputs the overcurrent to the power supply unit 720 .

5 to 7, the current control unit 714 is disposed behind the current limiting unit 712 and controls the AC currents AC_L and AC_N applied from the current limiting unit 712 with respect to the AC currents AC_L and AC_N, And supplies the current to the power supply 720 by dropping and finely adjusting the voltage so as to meet the appropriate load capacity. To this end, the current controller 714 includes a plurality of capacitors C1 and C2 or C3 and C4 configured in parallel.

The current control unit 714 is a part for lowering the AC input voltage with the capacitor as the main axis. The current control unit 714 is capable of adjusting the voltage value that decreases according to the capacitance of the capacitor. The current control unit 714 is composed of a plurality of capacitors such as a capacitor for fine adjustment of the drop voltage. The alternating current applied to the current control unit 714 is stored in the capacitor C1 and charged. The excess current remaining in the capacitor C1 is stored in the capacitor C2 and charged. That is, when the capacitor of the current control unit is Cn, the capacitor C1, the capacitor C2, and the capacitor Cn are sequentially charged in that order. When the charged alternating current becomes a certain value or more, And the electric current is supplied to the power supply unit 720 connected to the rear of the AC stabilization module 710.

Accordingly, the AC stabilization module 710 rectifies the AC power input from the commercial power supply, removes noise, and generates surges caused by natural phenomena such as lightning, lightning, and overvoltages caused by external electrical work or unstable power supply And the overcurrent, the power supply circuit can be stably protected and the rated life can be maintained. Also, the circuit is controlled in the current mode to generate a constant output to the power supply 720.

The switching power supply SMPS supplies a commercial power source (for example, 220 V or 110 V AC power) supplied from the AC stabilization module 710 to a driving power source (not shown) for driving the LED of the LED module 500 For example, a DC power supply). A circuit diagram of a 36 W power supply (SMPS) according to an embodiment of the present invention is shown in FIG.

As shown in Fig. 8, the 36W power supply of the present invention is designed as a flyback converter. The flyback converter has a smaller number of elements than other converters, it is easy to vary the output voltage by changing the winding ratio of the transformer, and the power supply and the load are electrically insulated by the transformer. In addition, a one-stage PFC circuit with its own power factor correction and constant voltage output characteristics was included for 90% or more power factor. In addition, the LC resonance filter was applied to greatly reduce the ripple component on the output side.

The DC stabilization module 730 transmits the DC driving power output from the power supply unit 720 to the LED module 300. The DC stabilization module 730 may include a driving power sensing unit 732 and a driving power control unit 734 as shown in FIG. The driving power sensing unit 732 is connected to each of the output terminals connected to the plurality of driving power supply lines and senses the connection state with the driving power supply lines and transmits a sensing signal to the driving power control unit 734 do. The driving power control unit 734 controls whether or not the driving power is outputted according to the sensing signal transmitted from the driving power sensing unit 732. [ The driving power control unit 734 stabilizes the DC level of the power output while preventing the overvoltage or the overcurrent of the DC applied from the power supply unit 720. The DC stabilization module 730 may be included in the power supply 720 and implemented.

As described above, the ship LED light according to the present invention can be applied to various types of ship lighting, such as a temperature change that can be caused by a long voyage while protecting an overvoltage, an overcurrent, an LED from a surge, Can withstand the vibration, waterproof, salt and the like due to the air flow rate, and can lower the harmonic content (THD) and operate the lighting stably.

Fig. 10 is a graph showing the results of the experiment of opening and closing the 36W class ship LED light according to the embodiment of the present invention, the surge resistance (overvoltage / overcurrent prevention efficiency), the SMPS power factor, the enclosure protection degree (IP65) And a temperature test was conducted by the Korea Institute of Lighting Research (KIET).

As shown in the charts, the shipboard LED lighting of the present invention showed a lighting appliance efficiency of 86% or more and is suitable for opening and closing test and surge resistance, and has an SMPS power factor of 0.94 or more, an illuminance of 8,540 or more, / W or more. Also, it conforms to IP65 certification standard of outer enclosure protection grade, and it is confirmed that it is resistant to vibration due to air flow rate, waterproof, salt and so on in conformity with the results of the resistance test and LED defect rate test results. In addition, it can be seen that the internal illumination temperature is less than 42 degrees during driving, and the structure is designed to efficiently emit heat.

As a result, it can be utilized not only as a room for a cabin, a steering room, a bedroom, but also as a light source for a heavy chemical plant, a power plant working room, a subterranean bunker lighting, a subway history,

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. Therefore, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents. It will be obvious to those of ordinary skill in the art.

100: Fixing bracket 110: Body plate
112, 210: Hollow 120 of the power socket: Mountain bracket
130: slide handle 140: side plate
150: spring 160: bolt
200: housing 300: gasket
400: LED heat sink 410: through hole
420: fitting groove 500: LED module
600: diffusion cover 610: coupling jaw
700: power supply circuit 710: AC stabilization module
712: current limiting unit 714: current control unit
716: current detection unit 720: power supply unit
730: DC stabilization module 732: Driving power detection unit
734: Driving power control unit

Claims (16)

A housing having one side opened and forming a receiving portion inside;
At least one hollow of a power socket to be connected to an external power source is formed on the other backside of the housing and both ends of the hollow are vertically extended and joined to the housing by bolts;
A power supply circuit for supplying driving power;
LED module;
An LED heat sink for fixing the power supply circuit and the LED module by being electrically connected to a terminal of the power supply circuit located on the other side through the through hole; And
And a diffusion cover coupled to one side of the housing and diffusing light emitted from the LED module to the outside,
The power supply circuit includes:
A circuit for reducing an overvoltage and a surge current generated by the AC power source in parallel with the input AC power source, and a circuit for detecting and overcurrent limiting or limiting the rated current by detecting an overcurrent. Ship LED light with power supply protection.
The method according to claim 1,
In the housing,
A plurality of coupling grooves are formed along the side edge,
In the diffusion cover,
And a plurality of coupling tails for fitting the coupling groove into the coupling groove along the side edge.
The method according to claim 1,
At the joining portion of the housing and the diffusion cover,
Characterized in that the gasket further comprises a ring-shaped gasket.
The method according to claim 1,
The fixing bracket includes:
A body plate having a hollow portion of a power socket to be connected to the external power source and having both ends vertically extended to the housing side and having a through hole formed in the vertically extended portion,
A side plate, a spring, and a bolt for fixing the main body plate to both sides of the housing, respectively; and a ship LED light having an overvoltage, an overcurrent, a surge, and a power supply protection function.
5. The method of claim 4,
The fixing bracket includes:
And a bolt coupled with the spring penetrates through the housing, the body plate, and the side plate in the housing to engage with the slide handle. The ship LED light with overvoltage, overcurrent, surge, and power supply protection function.
5. The method of claim 4,
The fixing bracket includes:
And further comprising a mountain bracket which is fixed to be suspended from the ceiling of the ship.
The method according to claim 6,
The fixing bracket includes:
Characterized in that a bolt combined with the spring is engaged with the slide handle through the housing, the body plate, the mountain bracket and the side plate inside the housing. Ship LED lighting.
The method according to claim 6,
The fixing bracket includes:
And the mountain bracket is screwed to both sides of the housing. The ship LED light having overvoltage, overcurrent, surge and power supply protection function.
The method according to claim 1,
The power supply circuit includes:
An AC stabilization module for transmitting an AC power input through a commercial power supply to a power supply;
A power supply unit for converting AC power supplied from the AC stabilization module to DC power; And
And a DC stabilization module for supplying a driving power output from the power supply unit to the LED module.
10. The method of claim 9,
The AC stabilization module includes:
A current limiter for attenuating overvoltage and surge;
A current sensing unit for sensing a current of an input AC power; And
And a current control unit for controlling the current of the AC power source according to a detection signal from the current sensing unit and outputting the current to the power supply unit, wherein the ship LED light having overvoltage, overcurrent, surge and power supply protection functions.
11. The method of claim 10,
Wherein the current-
A surge absorber configured in parallel with the input AC power source to attenuate an instantaneous overvoltage or surge current in the instantaneous overvoltage or surge current applied from the power source,
A varistor for absorbing a momentary overvoltage or a surge current in an instantaneous overvoltage or a surge current applied from a power source,
And a line filter for removing noise of the input AC power. The ship LED light having overvoltage, overcurrent, surge and power supply protection function.
12. The method of claim 11,
Wherein the current-
Three surge absorbers Ab1 to Ab3 constituted in parallel to the input AC power sources AC_L and AC_N and varistors MOV1 to MOV3 constituted in parallel with at least one AC power source constituted and inputted at the rear of each surge absorber, MOV10), and a line filter for removing noise. A ship LED light with overvoltage, overcurrent, surge and power supply protection function.
12. The method of claim 11,
Wherein the current-
And is a 15KV / 7.5KA class circuit including varistors (MOV1 to MOV18) formed in parallel with at least one AC power source (AC_L, AC_N) to be input and two line filters for removing noise Ship LED lights with overvoltage, overcurrent, surge and power supply protection.
11. The method of claim 10,
The current control unit includes:
Wherein the at least two capacitors are formed of at least two capacitors arranged in parallel with each other.
10. The method of claim 9,
The power supply device includes:
Designed as a flyback converter,
Wherein the light source includes a one-stage PFC circuit and an LC series resonance filter.
10. The method of claim 9,
The DC stabilization module includes:
A driving power sensing unit formed corresponding to each of the output terminals connected to the plurality of driving power supply lines for sensing a connection state of the driving power supply lines,
And a driving power controller for controlling whether the driving power is output to the LED module according to a sensing signal transmitted from the driving power sensing unit.

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