KR101958164B1 - High luminous led searchlight possible to adjust a focus - Google Patents

Abstract

The present invention relates to a high-intensity LED search light with an adjustable focus, comprising: a housing; a plurality of search light modules located in the housing; a driving unit adjusting a focus of light irradiated from an LED by rotating a rotating unit of each of the search light modules and moving lenses connected to each moving unit; and a radiating unit emitting heat generated from a plurality of LED modules to the outside of the housing. Accordingly, the LED modules are connected through a gear configuration to enable each of the LED modules to be focused at the same time. Therefore, light can be intensively irradiated to a search area to be searched in a ship to perform rescue, lifesaving, or coastal defense.

Description

HIGH LUMINOUS LED SEARCHLIGHT POSSIBLE TO ADJUST A FOCUS "

The present invention relates to an LED searchlight, and more particularly, to an LED searchlight mounted on a ship and capable of operating in a special situation such as a lightning strike, a lifesaving operation, or coast guard.

Halogen / Xenon searchlight, which is widely used as a light source for search lights, has high power consumption, low light conversion efficiency, and is very vulnerable to vibrations and shocks generated by ships. Its life span is as short as 2,000 hours based on Xenon lamps. This is a big burden.

In order to overcome these disadvantages of halogen and xenon lamps, there is a trend to replace the light source of the searchlight for ships with LEDs. Unlike halogen and xenon lamps, LED searchlights require multiple LEDs in order to secure high output. Without appropriate optical components, the LEDs are capable of outputting about 30% of the output power of the same output xenon lamp due to diffuse reflection. It has not yet completely replaced halogen or xenon detectors. Also, when an LED searchlight is installed on a ship, there is a problem in that LED life due to heat is significantly reduced due to the use of a large number of high-output and high-density integrated LEDs in order to increase the light output or to cause defects due to inundation due to seawater have.

According to the prior art related to the present invention, an LED searchlight for a ship having an efficient light collecting structure of Korean Patent Registration No. 10-1479768 has a case having a space inside and a front side opened; a case built in the case, And at least one light emitting part formed at an equal interval with respect to the center of the case and having a space therein and having one end opened and the case inserted therein and the other end emitting from the light emitting part, The light condensing lid on which the convex lens for converging the light to the target point is formed and the condensing lid on which the convex lens is formed through the adjusting means can be easily transferred in the forward and backward directions to adjust the focus position of the light focused by the convex lens So that the light source can be irradiated to a desired point by the user.

In the prior art, a plurality of light-emitting units are disposed in one case, and the focusing means on the outer surface of the one case has a complicated structure composed of a deceleration motor, a control shaft, a fixed bearing, As the light condensing lid is moved, it is infiltrated by the seawater into the thread gaps between the case and the condensing lid, so that the waterproofing problem can not be solved. The heat dissipating structure is not disclosed at all.

Therefore, it will be necessary to develop a new LED searchlight with focus adjustment function, waterproof function and heat dissipation structure so that it can be used in special situations such as distress, lifesaving, and coast guard by using a plurality of LED light sources.

Korean Registered Patent No. 10-1479768 (Feb.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a high intensity light source which is mounted on a ship using a plurality of LED light sources and can be focused for special situations such as a distress, LED searchlight.

It is another object of the present invention to provide an LED searchlight which is installed on a ship to prevent defects due to seawater flooding and to use a plurality of LEDs integrated with high power and high density to increase the output of light, And to provide a high-intensity LED searchlight having a heat dissipating structure for maintaining a service life.

According to an aspect of the present invention, there is provided a high-intensity LED searchlight including a housing, a plurality of searchlight modules positioned inside the housing, and a rotary part of each searchlight module, A driving unit for moving a connected lens to adjust a focus of light emitted from the LED, and a heat radiating unit for radiating heat generated from the LED module to the outside of the housing.

The searchlight module according to an embodiment of the present invention is inserted into a plurality of searchlight module through holes formed in the searchlight module module mounting plate and is connected to the housing through a screw connection by a fastening hole in a state of being inserted into the searchlight module module connection hole. .

The searchlight module mounting plate according to an embodiment of the present invention includes a searchlight module through hole through which a searchlight module is inserted and guided, a motor shaft through hole in a center portion, and a driven gear shaft insertion hole Is formed.

The searchlight module according to an embodiment of the present invention includes a cylindrical portion having an opening formed on a side surface thereof and having a rail and a thread formed on the inner surface thereof, a guide connected to the rail, a sawtooth and a threaded portion connected to the driven gear through the opening, And a moving part connected to the lens and having a screw thread and connected to the thread of the cylindrical part and the rotating part and horizontally moving according to the rotation of the rotating part.

The driving unit according to an embodiment of the present invention is characterized in that the motor is mounted on one surface of the searchlight module module mounting plate and the motor shaft is penetrated through the motor shaft through hole and connected to one center gear located on the other surface of the searchlight module module mounting plate, And a control unit for controlling the number of revolutions and the direction of rotation of the motor according to the distance sensed by the distance sensor.

The heat dissipating unit according to an embodiment of the present invention includes an LED module mounting plate on which the LED module is mounted and a heat sink and LED module mounting plate extending from the LED module mounting plate to discharge heat generated from the LED module to the outside And a heat dissipation groove formed on a bottom surface of the LED module mounting plate. The LED module mounting plate has a cable through hole through which a cable for power supply and control can be passed through the LED module.

According to the present invention as described above, since a plurality of searchlight modules are arranged through the searcher module module mounting plate, the focus of the LED light irradiated from each searchlight module can be adjusted simultaneously through the gear structure, It is possible to carry out distress and rescue or coastal expenses by intensively investigating light in the search area.

In addition, since the driving section including the motor, the center gear and the plurality of driven gears is located at the center of the searchlight module module mounting plate, the number of the searchlight module penetration holes of the searchlight module module mounting plate can be simply changed according to the LED output required for the search, There is an advantage that it is easy.

In addition, when the LED searchlight is mounted on the ship, each LED module is located inside each searchlight module and housing, and it is structured to be completely watertight and vibrationproof from seawater and vibration, thus saving LED maintenance life can do.

1A and 1B are perspective views of an LED search lamp according to an embodiment of the present invention.
2A and 2B are sectional views of an LED search lamp according to an embodiment of the present invention.
3A to 3C are views showing a housing for a waterproof and dustproof case to which a plurality of searchlight modules according to an embodiment of the present invention are attached.
4A to 4D are a perspective view, a cross-sectional view, and an exploded view of a searchlight module according to an embodiment of the present invention.
5A and 5B are views illustrating an LED module and a heat dissipation unit installed in a searchlight module according to an embodiment of the present invention.
FIG. 6 is a cross-sectional view illustrating a structure for adjusting the focus of light emitted from each of the searchlight modules according to an exemplary embodiment of the present invention. Referring to FIG.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. The effects and features of the present invention and methods of achieving them will be apparent with reference to the embodiments described in detail below with reference to the drawings. However, the present invention is not limited to the embodiments described below, but may be implemented in various forms. In the following embodiments, the terms first, second, and the like are used for the purpose of distinguishing one element from another element, not the limitative meaning. Also, the singular expressions include plural expressions unless the context clearly dictates otherwise. Also, the terms include, including, etc. mean that there is a feature, or element, recited in the specification and does not preclude the possibility that one or more other features or components may be added. Also, in the drawings, for convenience of explanation, the components may be exaggerated or reduced in size. For example, the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of explanation, and thus the present invention is not necessarily limited to those shown in the drawings.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals refer to like or corresponding components throughout the drawings, and a duplicate description thereof will be omitted .

FIGS. 1A and 1B are perspective views of an LED search lamp according to an embodiment of the present invention, and FIGS. 2A and 2B are sectional views of an LED search lamp according to an embodiment of the present invention, and FIGS. Fig. 2 is a view showing a housing for a waterproof and dustproof case in which a plurality of searchlight modules according to an example are mounted.

Referring to FIGS. 1A to 3B, the LED search lamp 1000 includes a housing 10 in which rain, snow, and seawater are mounted on a ship or the like so that the searchlight module 100 does not penetrate the module installed therein, A plurality of searchlight modules 100 installed in the main body 100 and irradiating light by the LED light source and a driving unit 200 for rotating the rotation part of the searchlight module 100 to adjust the focus of the light.

The side housing 11 has a latching protrusion 11a for supporting the search module module mounting plate 15 and the rear housing 12 is connected to the outside of the housing by inserting the heat dissipating unit 400 of the searchlight module 100. [ A searchlight module connection port 12b that can connect the searchlight module 100 to the housing 10 through screw connection by the fastening hole 12a in the exposed state can be formed. That is, the searchlight module 100 is screwed into the searchlight module module through hole 15a formed in the searchlight module module mounting plate 15 and inserted into the searchlight module module connector 12a at the same time, The LED search lamp 1000 can be connected to the LED search lamp 1000 through the LED lamp. The front surface 13 of the housing 10 is connected to the windshield so that the inside of the housing 10 is completely hermetically sealed with the outside to prevent water from penetrating into the plurality of searchlight modules 100 installed inside, Since the plurality of searchlight modules 100 are connected to the housing 10 while being supported by the searchlight module module mounting plate 15 and the rear housing 12, the vibration due to ship operation is minimized to increase the waterproof and dustproof effect .

The searchlight module mounting plate 15 includes a searchlight module through hole 15a through which the searchlight module 100 can be inserted and guided, a motor shaft through hole 15b at the center thereof, and a driven gear An axial insertion hole 15c can be formed. The searchlight module mounting plate 15 may be formed with a through hole (not shown) through which a cable for power supply and control may pass. On both sides of the center of the searchlight module module mounting plate 15, a driving unit 200 for rotating the cylindrical portion of the searchlight module can be located.

The driving unit 200 includes a motor for generating a rotational force, a center gear 210 connected to the motor shaft, a plurality of driven gears 220 connected to the center gear 210, And a control unit (not shown) that can control the rotation of the motor according to a control signal. The control unit (not shown) may be a microcontroller (MCU) for controlling the motor. The motor rotation information according to the control signal stored in advance may be stored in a memory, and the stored motor rotation The motor can be controlled to rotate as much as the information. On the other hand, the controller receives the distance information from the target by the distance sensor, calculates a correction distance according to the difference between the current focal distance and the target distance, So that the focus of the LED searchlight can be controlled so that the search is automatically performed. The distance sensor may output a distance signal according to reflection of an infrared ray, a laser or an RF signal to the controller, and the controller may generate distance information to the target according to the distance signal inputted from the distance sensor. The controller generates correction distance information by calculating the difference between the generated distance information and the currently set focal length, and then compares the correction distance information with previously stored motor rotation information to move the focus by a correction distance. It is possible to control the number of revolutions and the direction of rotation.

The driven gear 220 is connected to the teeth 121 formed on the rotary part 120 of the searchlight module 100 and rotates the rotary part 120 in accordance with rotation of the center gear 210, Can be controlled. Although the center gear is connected to the motor shaft of the driving unit 200, a predetermined speed reducer may be connected to the motor to control the moving distance of the lens by the rotation ratio of the motor and the rotation of the rotation unit. The focus control operation structure of the LED light by the rotation of the rotation unit will be described in detail with reference to FIGs. 4A to 4C. The driving unit 200 includes a motor mounted on one side of the searchlight module module mounting plate 15 and a motor shaft penetrated through the motor shaft through hole 15b to form one center gear 210 located on the other side of the searchlight module module mounting plate 15. [ And a plurality of driven gears 220 can be connected to the center gear 210. That is, unlike halogen and xenon lamps, the LED searchlight 1000 uses a plurality of searchlight modules 100 to secure a high output power, and it is necessary to simultaneously control the focus of the LED lights irradiated from the plurality of searchlight modules . For this purpose, the searchlight module module mounting plate 15 rotates a plurality of driven gears 220 by rotation of one central gear 210 located at the center, thereby rotating a plurality of searchlight module through holes 15a The focus can be controlled by rotating the rotation part 120 of each of the searchlight module 100 inserted into the light source module 100 (see FIG. 6). The LED search lamp 1000 is configured such that the driving unit including the motor, the center gear 210 and the plurality of driven gears 220 is located at the center of the searchlight module module mounting plate 15, Only the number of the search lamp module through holes 15a of the plate 15 can be changed.

4A to 4D are a perspective view, a cross-sectional view, and an exploded view of a searchlight module according to an embodiment of the present invention.

4A to 4D, the searchlight module 100 includes a cylindrical portion 110, a rotation portion 120 connected to the inside of the cylindrical portion and rotated by the force of the driven gear, A moving part 130 which moves according to rotation, and a heat radiating part 400 connected to one end of the cylindrical part 110.

The cylindrical portion 110 is formed with an opening 111 through which the teeth 121 of the rotary portion 120 are exposed to the outside and connected to the driven gear 220. The guide portion 122 of the rotary portion 120 is formed on the inner surface of the cylindrical portion 110, And the guide 122 can be stably rotated along the rail 112 when the rotation unit rotates. One end of the cylindrical portion 110 is connected to the heat dissipating unit 400 so that the heat emitted from the LED located inside the cylindrical unit can be discharged to the outside of the housing 10 through the heat dissipating unit 400. A part of the inner surface of the other end of the cylindrical part 110 is connected to a thread line 131 formed on the outer surface of the moving part 130 by forming a screw thread 131 so that the moving part 130 moves horizontally Can be guided. Here, the screw thread 131 is formed on the inner surface of the cylindrical portion, both surfaces of the moving portion and the inner surface of the rotating portion, and is connected to the screw thread 131 formed with the cylindrical portion 110, the moving portion 130, and the rotating portion 120, The moving part 130 can be guided by the screw thread 131 and horizontally moved.

The rotary part 120 has a circular saw tooth 121 formed at one edge thereof and the saw tooth 121 is connected to the driven gear 220 through the opening 111 to be rotated by receiving a rotational force. The outer surface of the rotary part 120 is connected to a screw thread 131 formed on the inner surface of the moving part 130 by forming a screw thread 131 so that the moving part 130 horizontally moves along the screw thread as the rotary part 120 rotates .

One end of the moving part 130 is connected to the lens 114 and the moving part 130 moves horizontally along the threaded part according to the rotation of the rotating part 120 to rotate the lens 114 and the LED light source The focus can be adjusted as the distance from the subject becomes closer or closer to the subject.

5A and 5B are views illustrating an LED module and a heat dissipation unit installed in a searchlight module according to an embodiment of the present invention.

5A and 5B, the heat dissipating unit 400 includes an LED module mounting plate 410 and an LED module mounting plate 410 on which the LED module 300 is mounted. And a heat dissipation groove 430 formed on a bottom surface of the heat sink plate 420 and the LED module installation plate 410, which are formed in a structure for widening a thermal contact area, to increase heat efficiency. The LED module mounting plate 410 may have a cable through hole 411 through which a cable for supplying and controlling power to the LED module can pass. Although not shown, the heat dissipating unit 400 may include a plurality of heat dissipating plates 420 exposed to the outside of the housing 10 and a heat dissipating fan capable of circulating external air in the heat dissipating grooves 430, Can be installed on one side of the rear housing (12). The LED searchlight has a structure in which the heat radiating part 400 of each searchlight module 100 is exposed to the outside of the housing to rapidly radiate heat generated from a plurality of LEDs to the outside, .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, I will understand.

Therefore, the scope of the present invention should not be limited to the above-described embodiments, but should be determined by equivalents to the appended claims, as well as the appended claims.

10: housing 11: side housing
12: rear housing 12a: fastening hole
12b: Searchlight module connection port 15: Searchlight module module mounting plate
15a: search lamp module penetration port 15b: motor shaft penetration port
15c: driven gear shaft insertion hole 100: search lamp module
110: cylinder part 111: opening
112: rail 114: lens
120: rotation part 121: tooth
122: guide 130: moving part
131: thread line 200:
210: center gear 220: driven gear
221: motor shaft connection groove 230: drive gear
300: LED module 310: LED
400: heat dissipating unit 410: LED module mounting plate
411: Cable passage hole 420: Heat sink
430: Heat sink groove 1000: LED searchlight

Claims (6)

housing,
A plurality of searchlight modules located inside the housing,
A driver for rotating the rotating parts of the respective searchlight module and simultaneously moving the lenses connected to the respective moving parts to adjust the focus of the light emitted from the LEDs;
And a heat dissipation part for dissipating heat generated from the LED module to the outside of the housing,
The search lamp module
A cylindrical portion having an opening formed on a side surface thereof and having a rail and a thread on the inner surface thereof,
A guide connected to the rail, a serration formed with teeth and a thread connected to the driven gear through the opening,
And a moving part connected to the lens at one end and formed with a screw thread and connected to a screw thread of the cylindrical part and the rotary part and horizontally moving according to the rotation of the rotary part.
The method according to claim 1,
Wherein the searchlight module is connected to the plurality of searchlight module through holes formed in the searchlight module module mounting plate and is connected to the housing through a screw connection by a fastening hole while being inserted into the searchlight module module connection hole. Possible high-intensity LED searchlight.
3. The method of claim 2,
Wherein the searchlight module mounting plate includes a searchlight module through hole through which the searchlight module is inserted and a driven gear shaft insertion hole through which a motor shaft through hole and a driven gear shaft are inserted and fixed. Adjustable high-intensity LED searchlight.
delete The method according to claim 1,
The driving unit
A motor is mounted on one side of the searchlight module module mounting plate and the motor shaft is penetrated through the motor shaft through hole and connected to one center gear located on the other side of the search module mounting plate, and a plurality of driven gears Connected,
And a controller for controlling the number of revolutions and the direction of rotation of the motor according to the distance sensed by the distance sensor.
The method according to claim 1,
The heat-
And a heat dissipating groove formed on a bottom surface of the LED module mounting plate and extending from the LED module mounting plate to discharge heat generated from the LED module to the outside,
Wherein the LED module mounting plate has a cable through hole through which a cable for supplying and controlling power to the LED module is formed at one side thereof.

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