KR100997746B1 - Led light device equipped with adjusting function for irradiation angle - Google Patents

Abstract

PURPOSE: An LED illumination device is provided to vary a projection angle by adjusting the gap between an LED and a lens. CONSTITUTION: An LED assembly unit is mounted in a housing(H) and is arranged in front of the LED assembly unit which is comprised of a fixed panel and lens elements. A displacement unit moves the fixing panel of the lens assembly unit back and forth. A back side heat-sinking member, a lateral heat-sinking member(53), and front side heat-sinking member(51) are arranged in a housing. An angle adjusting unit(40) is mounted in the housing and controls the projection angle of the LED assembly unit. The angle adjusting unit is comprised of a horizontal angle adjustment part(A1) and a vertical angle adjustment part(A2).

Description

LED lighting device capable of varying the irradiation angle

The present invention relates to an LED lighting device capable of varying the irradiation angle through a change in the distance between the light source LED and the lens,

In more detail, the irradiation angle can be changed through the forward and backward movement of the lens assembly, in which lens elements are mounted on the fixed panel, and furthermore, the irradiation angle can be adjusted and the heat dissipation performance is excellent. It is about.

Recently, LEDs having a small size, light weight, low heat generation, a reflection configuration, a high-speed response characteristic, a pulse operable characteristic, a light output control characteristic by a current, etc. have been spotlighted as a light source of an illumination device.

Prior art related to the change of irradiation angle among the lighting device using such LED is Patent No. 0811061 (February 29, 2008) [Light fixture using high brightness LED],

The patent is arranged in a matrix in which a plurality of high-brightness LEDs are connected in series or in parallel, and attached to a lens plate in which a plurality of high-transparency optical acrylic injection lenses having 1: 1 curvature and a constant curvature are installed in front of the LEDs. In order to have a constant and improved illuminance, and the LEDs arranged on the edge side of the LEDs are installed to be located inward from the center of the lens from the center of each lens corresponding to the front to improve the light distribution angle of the illumination,

In addition, by introducing the lens control member that can adjust the distance between the LED and the lens to propose a technology that allows the light distribution angle is changed to illuminate the desired area.

However, the patent is inconvenient to adjust the distance between the LED and the lens, and there is much room for improvement in connection with a more precise and convenient gap adjusting method.

In addition, regarding the heat dissipation problem, which is one of the biggest problems in the LED lighting device, there is a patent No. 0899089 (May 18, 2009) [small no fan LED light fixture],

The patent is provided with a heat dissipation frame spaced apart around the heat dissipation housing body to expand the heat dissipation area and to form a ventilation path so that the hot air rises and the new air at room temperature continuously flows into the elevated position. By activating the new room temperature air through the linear bridge and the main body as well as the heat radiating frame, the entire surface is operated as an effective heat exchange area so that the heat dissipation can be effectively and quickly performed without a fan in a non-ventilated space. The technology is presented.

However, the heat dissipation structure of the patent does not provide a means for directly dissipating the heat of the LED chip, which is a heat source, and it is difficult to say that the actual airflow is formed in spite of the irritating and colorful investigation, and thus, an additional heat dissipation structure is needed. Do.

Accordingly, an object of the present invention is to provide an LED lighting apparatus that enables the irradiation angle variation to be made in a precise and stable manner through a displacement means for advancing or moving the lens assembly or the LED assembly, or both.

In addition, the present invention introduces the angle adjusting means to the housing housing the LED assembly, and by adjusting the left and right angles and up and down angles in advance through the simulation according to the situation of the installation place by displaying the scale on the site, only fine adjustment after mounting in the field The purpose of the present invention is to provide an LED lighting device that can drastically reduce the cost and time required for the final aiming work when used as a floodlight.

Furthermore, the present invention further extends the heat dissipation area for the introduction of a more perfect heat dissipation structure, and also allows the front heat dissipation member to pass outside air, as in the structure of a jet engine, and a rear heat dissipation member that can directly dissipate heat from the LED chip. The purpose of the present invention is to provide a LED lighting device that introduces a side heat dissipation member, and the outside air guided through the induction path of the front heat dissipation member can be transmitted to the side and rear heat dissipation members. do.

LED lighting device capable of varying the irradiation angle according to the present invention to achieve the above object

housing;

An LED assembly mounted to the housing;

A lens assembly mounted to the housing and provided in front of the LED assembly; And

Displacement means for advancing the lens assembly or the LED assembly, or both;

It is made, including.

In the LED lighting device capable of varying the irradiation angle according to the present invention

The displacement means includes a female screw member provided in the lens assembly, coupled to the housing so as to be rotatable, and a male screw member coupled to the female screw member.

The displacement means is provided with a plurality of guide pins on the outside for the forward and backward advance of the stable lens assembly,

The housing is further provided with an angle adjusting means,

The housing is provided with a rear heat dissipation member, a side heat dissipation member and a front heat dissipation member,

The front heat dissipation member is provided in a radial shape on the housing rim, it is preferable to have an induction path for guiding air to the side heat dissipation member.

As described above, the LED lighting apparatus capable of varying the irradiation angle according to the present invention can be made in a precise and stable manner through the lens assembly or the LED assembly, or a displacement means for advancing and reversing them all. Introducing the angle adjusting means to the built-in housing, and displays the scale on it to adjust the left and right angles and up and down angles in advance through simulation to suit the situation of the installation place, so that only the fine adjustment after installation in the field is used as a floodlight In this case, the cost and time required for the final aiming work can be drastically reduced, and furthermore, the front surface which can pass outside air like the structure of a jet engine while increasing the heat dissipation area for the introduction of more perfect heat dissipation structure. A heat dissipation member, and a rear heat dissipation member capable of directly dissipating heat from the LED chip; Introduces a side heat dissipation member, and outside air guided through the induction path of the front heat dissipation member can be transmitted to the side and rear heat dissipation members, thereby enabling organic cooperation between the heat dissipation members, and thus, a new LED lighting device having excellent product competitiveness. Can be provided.

1 is an external perspective view of an LED lighting apparatus according to the present invention.
2 is a front, side and plan view of the LED lighting apparatus according to the present invention.
FIG. 3 is a cross-sectional view taken along line AA of FIG. 2 and lines AA, BB, and CC. FIG.
Figure 4 is a view of the bracket forming the angle adjusting means of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings.

The present invention may be modified in various ways and may have various forms, and thus embodiments (or embodiments) will be described in detail in the text. However, this is not intended to limit the present invention to the specific form disclosed, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

In each of the drawings, the same reference numerals, in particular, the tens and ones digits, or the same digits, tens, ones, and alphabets refer to members having the same or similar functions, and unless otherwise specified, each member in the figures The member referred to by the reference numeral may be regarded as a member conforming to these criteria.

The terminology used herein is for the purpose of describing particular embodiments (suns, aspects, and embodiments) (or embodiments) only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms “comprises” or “consists” are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

First, as shown in FIGS. 1 to 3, the LED lighting device L capable of varying the irradiation angle according to the present invention includes a housing H having a translucent external lens H1 on a front surface thereof, which is embedded in the housing. LED assembly 10, the lens assembly 20 arranged in front of the LED assembly, and the displacement means 30 for adjusting the distance between the lens assembly and the LED assembly.

As shown in FIG. 1, which shows the perspective views [A] and [B] respectively viewed from front and rear surfaces, the inner lens assembly 20, which should be seen through the translucent outer lens H1, is not shown for convenience.

The housing (H) is integrally provided with front and side heat dissipation members (51) (53), and the front heat dissipation member (51) is provided in a radial shape at the edge of the housing (H).

The front heat dissipation member 51 is for inducing outside air to the rear as if it were a jet engine, in addition to the basic function of widening the heat dissipation area, and for this purpose, the side and rear heat dissipation members 53 and 55 at the end including the side wall of the housing. An induction furnace 51A for guiding air to the furnace is formed.

The rear heat dissipation member is manufactured separately from the housing (H), and the structure is fixed to the rear of the housing by bolting the flange (55B), because it is mounted on the rear of the lighting device (L) is not seen well, so it may hurt the aesthetics. At least, the heat radiation fins of the rear heat dissipation member are formed as long as possible, and the PCB 13 having the LED chip 11 of the LED assembly 10 mounted thereon, as can be seen in the enlarged circle below [B] of FIG. It has a structure that is suitable to remove heat directly from the LED chip in contact with the metal PCB with high thermal conductivity.

In Fig. 3 composed of [A], [B] and [C] which are sectional views cut along the "A-A" line, the "B-B" line, and the "C-C" line of FIG.

The LED assembly 10 is embedded in a housing (H), a plurality of LED chips 11 are mounted on a PCB, particularly a metal PCB 13 having high thermal conductivity, and a converter 15 for supplying stable driving power. Can be connected to the PCB 13 via a wire W having a port for assembly convenience (see below in enlarged circle in FIG. 3B). The converter 15 is mounted on the lower surface of the upper plate 41A of the fixing bracket 41 forming the fixing and angle adjusting means 40 of the lighting device L.

The PCB 13 has a hexagonal shape for aesthetic appearance, but the shape of the exposed lens assembly 20 is important, and the shape of the lens assembly is also hexagonal.

The lens assembly 20 is mounted to the housing (H) and arranged in front of the LED assembly 10,

As can be seen in FIGS. 2A and 3A and B, the lens elements 23 have a fixed panel 21 arranged in a predetermined shape, and each lens element 23 has an LED chip. Corresponds to (11) one-to-one.

Next, the displacement means, which is one of the cores of the present invention, is implemented in such a manner that the lens assembly, the LED assembly, or both are moved forward and backward so that the irradiation angle of the LED chip 11, which is a light source, can be varied so that the luminance of the irradiation zone is increased. It can help improve.

In particular, as shown in Figure 3, the displacement means 30 of the present invention has a configuration capable of advancing the lens assembly 20 forward and backward.

To this end, the male screw member 31 and the female screw member 33 are introduced.

The male screw member 31 is inserted into the through hole 55A at the center of the rear heat dissipation member 55 and is fixed to the rear heat dissipation member 55 through the lock washer 31a coupled to the front annular groove 31A. It is configured to be possible.

In addition, the female screw member 33 coupled to the front of the male screw member 31 is fixed inside the groove 25 (see FIG. 3B) in the upper enlarged circle of the center of the fixing panel 21 of the lens assembly 20). It is.

Accordingly, when the head 31B of the male screw member 31 is turned by using a tool, the male screw member rotates in place, and the female screw member 33 moves forward and backward according to the rotational direction, so that the fixing panel 21 moves forward and backward. The distance between the chip 11 and the lens element 23 is adjusted, so that the irradiation angle may be varied (for example, in the range of 5 to 20 degrees on one side).

In addition, as shown in Figure 2 [A] and Figure 3 [C], it is preferable that the guide means is provided separately for the stable forward and backward movement of the lens assembly 20,

As can be seen in Figure 2 [A], the guide means is provided at four corners of the hexagonal lens assembly 20,

As can be seen in Figure 3 [C], the specific configuration of the guide pin 35 fixed to the housing (H), the slider 35A fixed to the fixing panel 21, the guide pin is coupled through And a coil spring 35B which provides a predetermined tension so that the fixing panel 21 moves forward and backward as a whole and is coupled to the guide pin 35 to support the slider 35A. The front end of the coil spring 35B is structured to be seated in the annular groove of the slider 35A.

The arrangement position and the number of the guide means having such a configuration can be selected as needed, but it is preferable that the arrangement is arranged in a symmetrical position to enable a stable retreat guide of the fixed panel 21 possible.

In addition, the degree of forward and backward movement of the lens assembly 20 (for example, 2 to 3 mm), in particular, the degree of advancement is preferably limited to such that the male and female screws 33 and 31 are not separated from each other. Can be done,

For example, by extending the end of the guide pin 35 to implement in a manner to prevent the departure of the slide (35A),

Both ends of the coil spring are fixed to the slider 35A and the housing H, so that the male and female screws may be prevented from being separated.

Subsequently, the housing H, which is another core of the LED lighting device L according to the present invention, looks at the angle adjusting means 40 which enables selection of the irradiation direction of the LED assembly 10.

In particular, the angle adjusting means 40 is composed of a left and right angle control unit (A1) and a vertical angle control unit (A2), including the scale (G1) (G2) through the simulation to suit the structure and situation of the installation place After adjusting and transporting the left and right angles and the up and down angles of the lighting device in each installation position, the final aiming work when used as a floodlight by using only fine adjustment (for example, about 1 ~ 2 degrees) after installation in the field This is to drastically reduce the time and cost required for the system.

The angle adjusting means 40 is introduced into the brackets 41 and 43 for fixing the housing H of the lighting device L to the installation place.

As can be seen in FIGS. 1, 2 and 4, the fixing bracket 41 has side plates 41B which are bent downward on both sides of the upper plate 41A, and are installed at the installation place through the side plates 41B. It is fixed.

In addition, the connecting bracket 43 has a side plate 43B bent upward on both sides of the lower plate 43A, and the lower plate 43A is fixed to the upper plate 41A of the fixing bracket through the shaft bolt 45A. It is made,

The side plate 43B is bent in an inclined direction rather than a vertical direction with respect to the lower plate 43A, so that when the angle is adjusted, the bottom edge portion of the housing H, that is, the front heat dissipation member 51 and the side plate 43B The contact angle is prevented from occurring so that the up and down angle adjustment is not disturbed.

First, the left and right angle adjustment unit (A1) is provided between the upper and lower plates 41A and 43A of both brackets 41 and 43,

The upper surface of the lower plate (43A) is provided with a scale (G1) can quantify the angle of displacement, for smooth rotation

Cross-sectional enlarged view of the right "AA" line in FIG. 4B, and the upper left view (left side is a top view, the middle is a section cut along the "CC" line of the top view, and the right is a cut along the "DD" line of the top view) As shown in

Between the upper and lower plates 41A and 43A, a separate hinge plate 45 is interposed.

The hinge plate 45 is formed with a shaft hole 45a to which the shaft bolt 45A is coupled, and a projection 45b is formed around the shaft hole 45a to be coupled to the through hole 43h1 of the lower plate 43A. ,
Fixing of the hinge plate 45 through the bolt hole 41a of the upper plate 41A , as can be seen in the lower right one-dotted line circle, which is an enlarged cross-sectional view of the right "AA" line in FIG. 4B . The hinge plate 45 is fixed to the upper plate 41A through a bolt coupled to the ball 45d, in particular a flat head bolt B.

In addition, the lower plate 43A around the scale G1 is provided with two arc-shaped slots 43a on both sides of the shaft bolt 45A, and the left and right angles when adjusting the left and right angles of the housing as shown in FIG. The degree of displacement can be confirmed because the graduation position changes as the connecting bracket 43 is rotated left and right with respect to the fixing bolt 45B fixed to the upper plate 41A so as to be positioned at the center of the slot 43a.

The fixing bolt (45B) also serves as a guide to ensure the pivoting movement of the stable connecting bracket 43, and the angle adjustment state can be fixed by tightening the fixing bolt (45B) after completion of the angle adjustment also serves as a fixing means. to do,

The specific binding type is a 4 [B] of the "BB" to check in a lower center cross-sectional view taken along a line standing space to fill the space between the upper and lower plate (41A) (43A) due to the hinge plate 45 45s is interposed.

Next, the vertical angle adjustment unit (A2) is provided on both side plates (43B) of the connecting bracket 43,

An arc-shaped slot 43b is formed in each side plate 43B, and a hinge plate 47 is interposed to ensure stable and smooth rotational movement.

The upper left view of FIG. 4B can be used as the hinge plates 45 and 47 for both the left and right and up and down angle adjustment portions A1 and A2, so that if the Arabic numerals 45 and 47 are the same, the lowercase letters are the same. Corresponds to a component that performs the same function.

The shaft bolt 47 A is coupled to the shaft hole 47a of the hinge plate 47 on the side plate 43B side, and the protrusion 47b having the shaft hole 47a formed therein is a through hole 43h2 of the side plate 43B. ),
The structure coupled to the housing H is not shown, but similarly to the structure shown in the lower right dashed line, which is an enlarged cross-sectional view of the right "AA" line in FIG. 4B.
Fixing the side wall of the housing H of the hinge plate 47 is such that the bolt, in particular the flat head bolt B, is passed through the fixing hole 47d of the hinge plate 47 to be embedded in the side wall of the housing H.

Another fastening hole (47c)
(When used as a hinge plate 45 for the left and right angle control unit (A1) fastening hole 45c is not utilized , the shape of the fixing hole 45d is also different (right "AA" in Fig. 4 [B]) In the lower right dashed line with a line-specific cross-sectional view) )
The fixing bolt 47B is coupled.

As shown in FIG. 2C, the hinge plate 47 is pivoted together along the housing when the housing H is rotated up and down, and the fixing bolt 47B is also embedded in the fastening hole 47c, so that the fixing bolt 47B is rotated. Since the position of the scale (G2) indicated by) changes, it is possible to check the degree of angular displacement.

In the above description, when used as an LED, a light emitter, or a light emitter, conventionally known techniques related to the irradiation angle control simulation method, etc. are omitted, but those skilled in the art can easily infer, infer, and reproduce the same.

In addition, in the above description of the present invention with reference to the accompanying drawings with reference to the accompanying drawings having a specific shape and structure, the present invention can be variously modified, changed and replaced by those skilled in the art, such modifications, changes and substitutions It should be interpreted as falling within the protection scope of the present invention.

H: housing 10: LED assembly
11: LED chip 13: PCB
20: lens assembly 21: fixed panel
23: lens element 30: displacement means
31: male thread member 33: female thread member
35: guide pin 40: angle adjusting means
41: fixing bracket 43: connecting bracket
45,47: hinge plate 45a, 47a: hinge plate
45b, 47b: Shaft hole 45A, 45B, 47A, 47B: Bolt
A1, A2: angle adjusting part 51, 53, 55: heat dissipation member

Claims (4)

A housing H;
LED assembly (10) mounted to the housing (H);
A lens assembly (20) mounted to the housing and provided in front of the LED assembly and comprising a fixed panel (21) in which lens elements (23) are arranged ; And
Displacement means for advancing the lens assembly 20 forward and backward;

The displacement means 30 advances the fixed panel 21 of the lens assembly 20 forward and backward,
Female screw member 33 provided on the fixing panel 21 of the lens assembly 20,
Is coupled to the housing (H) rotatably, and includes a male screw member 31 coupled to the female screw member,

In the housing (H)
The rear heat dissipation member 55, the side heat dissipation member 53 and the front heat dissipation member 51 are provided,
The front heat dissipation member 51 is provided in a radial shape at the edge of the housing (H), and has an induction path 51A for guiding air to the side heat dissipation member 53,

The housing (H) is further provided with an angle adjusting means,
The angle adjusting means 40
A fixing bracket 41 having an upper plate 41A, side plates 41B bent downward on both sides of the upper plate, and fixed to an installation place through the side plates 41B;
It has a lower plate 43A and side plates 43B which are bent upward on both sides of the lower plate, and the lower plate 43A is fixed to the upper plate 41A of the fixing bracket through a shaft bolt 45A. Including a connecting bracket (43),
The side plate 43B of the connecting bracket 43 is bent in an inclined direction rather than a vertical direction with respect to the lower plate 43A, so that the front heat dissipation member 51 of the housing H is the side plate 43B when the angle is adjusted. LED lighting device capable of varying the irradiation angle, characterized in that the up and down angle adjustment is not hindered to prevent the situation in contact with the contact. The method of claim 1, wherein in the displacement means (30)
The male screw member 31 is inserted into the through hole 55A at the center of the rear heat dissipation member 55 and is fixed to the rear heat dissipation member 55 through the lock washer 31a coupled to the front annular groove 31A. Is configured to enable
The female screw member 33 coupled to the front of the male screw member 31 is fixed inside the groove 25 in the center of the fixing panel 21 of the lens assembly 20.
When the head 31B of the male screw member 31 is turned by using a tool, the male screw member rotates in place and the female screw member 33 moves forward and backward according to the rotational direction, and accordingly, the fixing panel 21 moves forward and backward. 10, the distance between the LED chip 11 and the lens element 23 of the lens assembly 20 is adjusted, and the irradiation angle is changed accordingly,

Further comprising a guide means for the stable forward and backward of the lens assembly 20,
The guide means is provided at the edge of the lens assembly 20,
The guide pin 35 fixed to the housing H, the slider 35A fixed to the fixed panel 21 and coupled to the guide pin, and the fixed panel 21 are moved forward and backward as a whole. LED lighting device capable of varying the irradiation angle, characterized in that it comprises a coil spring (35B) coupled to the guide pin (35) to hold the slider (35A). The method according to claim 1 or 2,
The angle adjusting means 40 includes a left and right angle adjusting unit (A1) and the vertical angle adjusting unit (A2),

The left and right angle adjustment unit (A1) is provided between the upper and lower plates 41A and 43A of both brackets 41 and 43,
The upper surface of the lower plate (43A) is provided with a scale (G1) can quantify the angle of displacement, and a separate hinge plate 45 is interposed between the upper and lower plates (41A, 43A) for smooth rotation. The hinge plate 45 is formed with a shaft hole 45a to which the shaft bolt 45A is coupled, and a projection 45b is formed around the shaft hole 45a to the through hole 43h1 of the lower plate 43A. The hinge plate 45 is fixed to the upper plate 41A through the bolt B coupled to the fixing hole 45d of the hinge plate 45 by passing through the bolt hole 41a of the upper plate 41A. It becomes the structure that becomes

The vertical angle adjusting portion (A2) is provided on both side plates (43B) of the connecting bracket 43, each side plate (43B) is formed with an arc-shaped slot (43b), and is also stable Hinge plate 47 is interposed to ensure smooth rotational movement,
The shaft bolt 47 A is coupled to the shaft hole 47a of the hinge plate 47 at the side plate 43B, and the protrusion 47b having the shaft hole 47a is formed in the through hole 43h2 of the side plate 43B. (H) side wall of the hinge plate 47 is fixed in the form that the bolt (B) is passed through the fixing hole (47d) of the hinge plate 47 to be embedded in the side wall of the housing (H). LED lighting device capable of varying the irradiation angle. delete

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