KR20230168690A - Led search light having beam angle control - Google Patents

Abstract

An LED searchlight capable of adjusting the beam angle is disclosed. The LED searchlight capable of adjusting the beam angle of the present invention includes a main body provided with a base body and a cover member detachably coupled to the base body; An LED package provided on the base body and emitting an LED beam; An angle adjustment driving unit provided on the base body to adjust the angle of the LED beam; a lens unit provided on the base body to be disposed in front of the LED package and focus the LED beam; And a reflection unit provided in the angle adjustment drive unit to prevent loss of the LED beam transmitted from the LED beam to the lens unit, wherein the drive unit includes a drive motor provided in the base body and a drive connected to the drive motor to rotate. A gear, a plurality of driven gears that are engaged with the driving gear and rotated together with the driving gear, a helical screw portion with one end connected to the driven gear and rotating with the driven gear and a helical screw thread provided on an outer wall, and the helical screw portion. It is provided at the other end and is characterized by including a driving body to which the LED package is coupled.

Description

LED searchlight with adjustable beam angle {LED SEARCH LIGHT HAVING BEAM ANGLE CONTROL}

The present invention relates to a searchlight, and more specifically, to an LED searchlight capable of adjusting the beam angle so that it can be applied to a long or short distance.

In general, a searchlight refers to a lighting device that combines a powerful light source and a reflector to deliver an intense beam of light to high altitudes. It is used for aerial search, especially by illuminating enemy planes to combat friendly forces' ground anti-aircraft fire. It is to make it a target of empty fire. Recently, in addition to military purposes, it is also used for advertising and propaganda purposes.

In other words, as a military lighting system, it can be used for the purpose of searching for aircraft, ships, military units, etc. at night, and can also be applied as a lighting system for the purpose of observing a specific area, or as a lighting system for the purpose of observing a building, bridge, or specific object. This refers to a portable or fixed lighting device used as a lighting system or medical lighting system.

These searchlights include anti-aircraft searchlights, signal searchlights used on ships, battlefield lighting or coastal surveillance searchlights, surveillance searchlights in prisons or security companies, runway guidance lights for safe landings of airplanes in unsafe atmosphere and weather, and attached to vehicles. It can be used as a headlamp or as a submarine searchlight to observe certain objects in seawater.

Meanwhile, conventional searchlights are suitable for illuminating a long distance when used in correctional facilities or for security purposes, but when illuminating a short distance, the beam angle must be adjusted. Most of them do not have this function, and the beam angle cannot be adjusted conveniently and accurately. Therefore, improvement measures for this are required.

The technical configuration described above is background technology to aid understanding of the present invention, and does not mean that it is a conventional technology widely known in the technical field to which the present invention pertains.

Korean Patent Publication No. 10-1936821 (Good Eye Tech Co., Ltd.) 2019. 01. 03.

Therefore, the technical problem to be achieved by the present invention is an 800W or higher boundary searchlight that can be applied to long or short distances by accurately and uniformly adjusting the beam angle, and is capable of adjusting the beam angle manually and automatically. LED searchlight is provided.

According to one aspect of the invention, a main body provided with a base body and a cover member detachably coupled to the base body; An LED package provided on the base body and emitting an LED beam; An angle adjustment driving unit provided on the base body to adjust the angle of the LED beam; a lens unit provided on the base body to be disposed in front of the LED package and focus the LED beam on an object; And a reflection unit provided in the angle adjustment drive unit to prevent loss of the LED beam transmitted from the LED beam to the lens unit, wherein the drive unit includes a drive motor provided in the base body and a drive connected to the drive motor to rotate. A gear, a plurality of driven gears that are engaged with the driving gear and rotated together with the driving gear, a helical screw portion with one end connected to the driven gear and rotating with the driven gear and a helical screw thread provided on an outer wall, and the helical screw portion. An LED searchlight may be provided at the other end and includes a driving body to which the LED package is coupled.

The plurality of driven gears may be provided to circularly surround the driving gear.

The diameter of the helical thread portion may be smaller than the diameters of the driven gear and the driving body.

The reflector may be coupled to the driving body, rotate with the driving body, and be flexible.

The lens unit is provided with an aspherical lens or a Fresnel lens to maintain the angle of the LED beam, and a plurality of ventilation holes provided in the base body in an area where the helical thread part is located; a plurality of drain holes provided in the base body in an area where the driving gear is located; Tempered glass provided in front of the cover member; And it may further include a coupling means for detachably coupling the base body and the cover member.

Embodiments of the present invention can accurately and uniformly adjust the beam angle, and can adjust the beam angle manually and automatically.

Additionally, in this embodiment, the cover member can be detachably coupled to the base body using a coupling means including a ratchet, making maintenance convenient.

Furthermore, the heat dissipation efficiency of the LED can be increased by a plurality of ventilation holes provided in the base body in the area where the helical thread portion is located.

Additionally, liquid generated inside the base body due to condensation and external invasion can be discharged to the outside of the base body through a plurality of drain holes provided in the base body in the area where the driving gear is located.

Figure 1 is a diagram schematically showing an LED searchlight capable of adjusting the beam angle according to an embodiment of the present invention.
FIG. 2 is a diagram schematically showing the area of the driving unit shown in FIG. 1.

In order to fully understand the present invention, its operational advantages, and the objectives achieved by practicing the present invention, reference should be made to the accompanying drawings illustrating preferred embodiments of the present invention and the contents described in the accompanying drawings.

Hereinafter, the present invention will be described in detail by explaining preferred embodiments of the present invention with reference to the attached drawings. The same reference numerals in each drawing indicate the same member.

Figure 1 is a diagram schematically showing an LED searchlight capable of adjusting the beam angle according to an embodiment of the present invention, and Figure 2 is a diagram schematically showing the area of the driving unit shown in Figure 1.

As shown in these drawings, the LED searchlight 1 capable of adjusting the beam angle according to this embodiment includes a main body 100, an LED package 200 provided in the main body 100 and emitting an LED beam, An angle adjustment driving unit 300 provided in the main body 100 to adjust the angle of the LED beam, a lens unit 400 provided in the main body 100 to be placed in front of the LED package 200 to focus the LED beam, and , a reflection unit 500 is provided on the angle adjustment drive unit 300 to prevent loss of the LED beam transmitted from the LED beam to the lens unit 400.

As shown in FIG. 1, the main body 100 includes a base body 110, a cover member 120 coupled to the front of the base body 110, and the base body 110 and the cover member 120. A detachment means 130 for attachment and detachment, a tempered glass 140 provided in front of the cover member 120 to protect the lens unit 400, and a device provided on the cover body to supply electrical energy to components requiring electricity. Includes a power supply unit 150.

The base body 110 of the main body 100 may have a circular outer shape, as shown in FIG. 2 .

In this embodiment, the base body 110, as shown in FIG. 1, is provided with a plurality of ventilation holes 111 to cool the heat generated from the LED package 200. In this embodiment, the plurality of ventilation holes 111 may be provided to surround the base body 110 in a circular shape and may be arranged to maintain regular intervals. In this embodiment, the plurality of ventilation holes 111 may be provided in the base body 110 in the area where the helical thread portion 340 of the drive unit 300 is provided, as shown in FIG. 1.

In addition, in this embodiment, the base body 110, as shown in FIG. 1, is provided with a plurality of drain holes 112 to drain liquid generated inside the base body 110 due to condensation and external invasion. 110) can be discharged to the outside. In this embodiment, a plurality of drain holes 112 may be provided in the base body 110 in the area where the driving gear 320 is disposed, as shown in FIG. 1. That is, in this embodiment, the plurality of drain holes 112 may be provided in the base body 110 to be disposed behind the plurality of ventilation holes 111.

As shown in FIG. 1, the cover member 120 of the main body 100 is disposed in front of the base body 110 and can be detachably coupled to the base body 110 by a ratchet.

The detachment means 130 of the main body 100 is provided on the base body 110 and the cover member 120 to detachably couple the cover member 120 to the base body 110.

In this embodiment, the detachment means 130 may use a ratchet structure.

In addition, in this embodiment, the detachment means 130 may be a known detachment structure used in a searchlight, such as a screw connection, a fitting connection, or a locking structure.

As shown in FIG. 1, the tempered glass 140 of the main body 100 is provided at the forefront of the cover member 120 to prevent the lens unit 400 from being damaged by foreign substances.

In this embodiment, the tempered glass 140 may be transparent so as not to block the path of the LED beam emitted from the LED package 200.

As shown in FIG. 1, the power supply unit 150 of the main body 100 is provided on the base body 110 in the area where the drive motor 310 is provided and supplies electrical energy to the drive motor 310 and the LED package 200. can be supplied.

In this embodiment, the power supply units 150 are provided in pairs, so that one power supply unit 150 can supply electrical energy to the driving motor 310, and the other power supply unit 150 can supply electrical energy to the LED package 200. It can supply electrical energy.

As shown in FIG. 1, the LED package 200 is provided on the drive body 350 of the angle adjustment drive unit 300 and can radiate an LED beam to the lens unit 400.

In this embodiment, the LED package 200 is provided on each driving body 350 and can be moved in the front-back direction with respect to FIG. 1 like each driving body 350.

Additionally, in this embodiment, the LED beam emitted from the LED package 200 may be arranged to maintain a beam angle of 1.5 degrees at 2 miles.

Furthermore, in this embodiment, the plurality of LED packages 200 may receive electrical energy from the power supply unit 150.

The angle adjustment driver 300 is provided on the base body 110 of the main body 100 and can maintain the angle of the LED beam emitted from the LED package 200 at a set angle, for example, 1.5 degrees.

In this embodiment, the angle adjustment drive unit 300, as shown in FIG. 1, is provided in front of the drive motor 310 and the drive motor 310 provided inside the base body 110 and the drive motor ( A driving gear 320 connected to and rotated by 310), a plurality of driven gears 330 engaged with the driving gear 320 and rotated clockwise or counterclockwise, and connected to a plurality of driven gears 330. a helical threaded portion 340 that rotates like a plurality of driven machines and is provided with a helical threaded portion on the outer wall, and a driving body 350 on one side of which is connected to the helical threaded portion 340 and on the other side of which an LED package 200 is provided. Includes.

In this embodiment, when the drive motor 310 operates, one drive gear 320 connected to the drive motor 310 rotates, and when the drive gear 320 rotates, a plurality of driven gears engaged with the drive gear 320 Gear 330 also rotates in the same direction as driving gear 320. As a result, the plurality of helical threaded parts 340 connected to the plurality of driven gears 330 and the driving gear 320 connected to the plurality of helical threaded parts 340 are also rotated in the same direction as the driving gear 320. At this time, the driving body 350 is moved in the left and right directions with respect to FIG. 1 by the helical screw threads provided on the outer wall of the plurality of helical screw parts 340, and the LED package 200 provided in the driving body 350 is also moved to the driving body ( 350) can be moved in the same direction. As a result, the beam angle of the LED beam emitted from the LED package 200 can be adjusted. In this embodiment, the angle of the LED beam emitted from the LED package 200 can be greatly changed at a small elevation by the helical threads provided in the plurality of helical thread parts 340. Meanwhile, in this embodiment, a separate rotation means connected to the driving gear 320 is provided so that the user can manually rotate the driving gear 320. In this embodiment, the separate rotation means includes a rotation shaft rotatably provided in a hole provided in the base body 110, a plurality of rotations in which a gear is connected to the rotation shaft and rotates, and the gear disposed at the end is engaged with the driving gear 320. May include gears.

In this embodiment, a helical fin structure is provided on the outer wall of the driving body 350 to serve as a heat sink for the LED package 200.

And in this embodiment, a support portion is provided on the inner wall of the base body 110 to stably support the driving body 350 that rotates and moves left and right. In this embodiment, the support unit has a base support body (not shown) that has an inner wall shape corresponding to the outer wall of the driving body 350 and rotates like the driving body 350, and a rotatable support body that rotatably supports the outer wall of the base support body. Includes a support body (not shown). In this embodiment, the base support body and the rotation support body are each provided with screw threads having the same spacing as the above-mentioned helical screw threads, and the drive body 350 also moves left and right with respect to FIG. 1 in the same manner as the rotational movement distance of the helical screw portion 340. can be moved At this time, the base support body can be moved together with the driving body 350, and the rotation support body can maintain a fixed position.

As shown in FIG. 1, the lens unit 400 is provided to protrude at the front of the base body 110 and can guide the LED beam emitted from the LED package 200 to maintain a certain angle.

In this embodiment, the lens unit 400 can maintain the beam angle of 1.5 degrees at 2 miles for the LED beam emitted from the LED package 200. To this end, the lens unit 400 of this embodiment may include an aspherical lens or a Fresnel lens.

As shown in FIG. 1, the reflector 500 is provided at the front, or leftmost, of the driving body 350 on which the LED package 200 is installed, and is used to adjust the beam angle of the LED beam irradiated to the LED package 200. It plays a role in preventing light loss when the beam changes to a wide angle.

In this embodiment, the reflector 500 may have a narrow area in contact with the driving body 350 and may be provided with a wider width as it approaches the lens unit 400.

Additionally, in this embodiment, the reflector 500 is coupled to the driving body 350 and rotates together with the driving body 350, and may be made of a flexible material, for example, a material including heat-resistant soft plastic.

As seen above, this embodiment can accurately and uniformly adjust the beam angle. Additionally, in this embodiment, the cover member can be detachably coupled to the base body using a coupling means including a ratchet, making maintenance convenient. Furthermore, the heat dissipation efficiency of the LED can be increased by a plurality of ventilation holes provided in the base body in the area where the helical thread portion is located. Additionally, liquid generated inside the base body due to condensation and external invasion can be discharged to the outside of the base body through a plurality of drain holes provided in the base body in the area where the driving gear is located.

As such, the present invention is not limited to the described embodiments, and it is obvious to those skilled in the art that various modifications and changes can be made without departing from the spirit and scope of the present invention. Accordingly, such modifications or variations should be considered to fall within the scope of the claims of the present invention.

1: LED searchlight with adjustable beam angle
100: main body 110: base body
111: ventilation hole 112: drain hole
120: cover member 130: ratchet
140: Tempered glass 150: Power supply unit
200: LED package 300: Drive unit
310: drive motor 320: drive gear
330: driven gear 340: helical threaded portion
350: driving body 400: lens unit
500: Half birth

Claims (5)

A main body provided with a base body and a cover member detachably coupled to the base body;
An LED package provided on the base body and emitting an LED beam;
An angle adjustment driving unit provided on the base body to adjust the angle of the LED beam;
a lens unit provided on the base body to be disposed in front of the LED package and focus the LED beam; and
A reflection unit provided in the angle adjustment driving unit to prevent loss of the LED beam transmitted from the LED beam to the lens unit,
The driving unit includes a driving motor provided on the base body, a driving gear connected to and rotating with the driving motor, a plurality of driven gears engaged with the driving gear and rotating together with the driving gear, and one end connected to the driven gear. An LED searchlight comprising a helical thread portion that rotates with the driven gear and has a helical thread on an outer wall, and a driving body provided at the other end of the helical thread portion and to which the LED package is coupled. In claim 1,
An LED searchlight wherein the plurality of driven gears are provided to surround the driving gear in a circle. In claim 1,
An LED searchlight wherein the helical thread portion has a diameter smaller than the diameters of the driven gear and the driving body. In claim 1,
An LED searchlight where the reflector is coupled to the driving body and rotates with the driving body and is provided flexibly. In claim 1,
The lens unit is provided with an aspherical lens or Fresnel lens to maintain the angle of the LED beam,
a plurality of ventilation holes provided in the base body in an area where the helical thread portion is located;
a plurality of drain holes provided in the base body in an area where the driving gear is located;
Tempered glass provided in front of the cover member; and
An LED searchlight further comprising coupling means for detachably coupling the base body and the cover member.

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