KR101238352B1 - Led assemblies adjusting asymmetric light distribution, led assembly blocks of attachable and detachable type using the same, and led lighting apparatus having block assembly structure of attachable and detachable type - Google Patents

Abstract

The present invention relates to an LED assembly for adjusting an asymmetric light distribution curve, and an LED lighting device having a removable LED assembly block and a removable block assembly structure using the same. The lens of the LED package is implemented as an asymmetric lens and is tilted and irradiated according to the irradiation distance. The LED assembly adjusts an asymmetric light distribution curve for intensively irradiating the road with light irradiated unnecessarily to the surrounding area of the road or the other lane area by providing an individual light distribution curve through the spin of an elliptical light distribution along with the orient. The present invention provides a removable LED assembly block and a removable LED lighting device having a block assembly structure.
To this end, the present invention is an LED package in which the LED chip is built into the primary and secondary lenses; A movable support having the LED package mounted on an upper surface and having a ball joint at a lower side thereof; And a fixed support part in which the ball joint of the movable support part is movably supported, wherein the movable support part is tilted according to the irradiation distance by the ball joint coupling with the fixed support part and an orient according to the irradiation direction ( orientation is performed, and the asymmetric secondary lens is set to be spinable around an optical axis.

Description

LED ASSEMBLIES ADJUSTING ASYMMETRIC LIGHT DISTRIBUTION, LED ASSEMBLY BLOCKS OF ATTACHABLE AND DETACHABLE TYPE USING THE SAME, AND LED LIGHTING BLOCK ASSEMBLY STRUCTURE OF ATTACHABLE AND DETACHABLE TYPE}

The present invention relates to an LED assembly for adjusting the light distribution angle, and an LED lighting device having a removable LED assembly block and a removable block assembly structure using the same. More specifically, the lens of the LED package is implemented as an asymmetric lens and according to the irradiation distance. Adjust the asymmetric light distribution curve to focus the light unnecessarily on the surrounding area or the opposite lane area of the road by providing the individual light distribution curve through the rotation of the elliptical light distribution with the orient according to the tilt and irradiation direction. It relates to an LED lighting device having a LED assembly and a removable LED assembly block and a removable block assembly structure using the same.

In general, light distribution mainly used for road lighting uses light distribution curves of the first to fifth types. Accordingly, the street lamp is designed to efficiently illuminate the road surface through the light distribution having such a light distribution curve and installed on the road.

Recently, street lamps employing high-brightness LEDs (Light Emitting Diodes), which consume little power and emit light with high brightness, have been developed. These high-brightness LEDs have a strong straightness and are packaged with dual lenses to illuminate large areas. In other words, high-brightness LEDs are secondary lenses (for example, 12 ° lens, 25 ° lens, 30 ° lens) in addition to the primary lens when packaging the LED chip to disperse the light emitted from the LED chip into various irradiation ranges 40 ° lens or the like).

On the other hand, LED lighting device is disclosed in Republic of Korea Patent Publication No. 2009-78712. That is, the LED lighting device disclosed in Korean Patent Laid-Open Publication No. 2009-78712 has a structure in which a plurality of LED modules are mounted on each of a plurality of inclined block members set to have different inclination angles so that a desired light distribution curve can be easily designed. At this time, the LED lighting device is formed along the outer circumference of the circular upper plate integrally formed with a housing member having a bowl shape, and a plurality of LED modules inside the inner side of the housing member, the lower side of the upper plate and the inside of the side portion, respectively. The structure equipped with this is disclosed. In addition, the LED lighting device has a structure in which a plurality of LED modules are mounted on each of the plurality of inclined block members set to have different inclination angles so as to easily design a desired light distribution curve.

However, such a conventional LED lighting device has a technical difficulty in manufacturing a large housing member, and since a plurality of LED modules are mounted inside the housing member, productivity is obtained by manually connecting a plurality of power gap wiring and control signal wiring. Falls.

In addition, the conventional LED lighting device is arranged in a variety of combinations (for example, a set of 12 inclined block members in various combinations) according to the installation location (for example, local government, country) and the type of light distribution curve. It is required to increase the die casting mold manufacturing costs accordingly.

In addition, the conventional LED lighting device is difficult to automate assembly due to the screw assembly of the metal PCB in which a plurality of LEDs are mounted on one inclined block member and the screw assembly of the plurality of inclined block members with respect to the housing member. Ten or more screws are required to disassemble the glass cover, the inclined block and the top PCB for replacement, so it is difficult to maintain easily.

In addition, in the conventional LED lighting device, three LEDs are mounted on each of the LED mounting metal PCBs assembled to one inclined block member. At this time, since all three LEDs are packaged in one direction, the LEDs are applied in a multi-layer multi-spot method, which is recognized as a single light source. none.

Such a conventional LED lighting device is produced by the LED mounting surface of the inclined block member at a predetermined angle, so that the light of the LED as a single light source regularly illuminates the road surface, glare (glare) by the amount of light directly irradiated directly to the driver and pedestrians There are many.

In particular, the conventional LED lighting device may damage by irradiating light to an area outside the road, such as residential neighborhoods, farmland around the road. In other words, people may experience inconvenience due to sleep disorders due to the light of road lighting on the residential area around the road. In addition, crops around the road can be hampered. For example, long-day plants (eg, barley, spinach, etc.) that bloom and bear fruit when the length of the day is longer than the length of the night, may not be able to nourish and grow fast due to faster flowering and reversal. In the case of plants (eg, rice, beans, etc.), damage occurs because the flowering time is delayed or the flowering itself does not progress.

Therefore, the conventional LED lighting device is required to prevent the light pollution caused by the street light to prevent unnecessary light is irradiated to the peripheral area of the road.

Therefore, the conventional streetlight as described above has a problem of causing light pollution by irradiating unnecessary light to the peripheral area of the road, it is a problem of the present invention to solve this problem.

Therefore, the present invention implements the lens of the LED package as an asymmetric lens and provides a separate light distribution curve through the elliptical light distribution spin with the tilt according to the irradiation distance and the orientation according to the irradiation direction, so that it is unnecessary in the peripheral area of the road or the opposite lane area. An object of the present invention is to provide an LED assembly for adjusting an asymmetric light distribution curve for intensively irradiating light to a road and an LED lighting device having a removable LED assembly block and a removable block assembly structure using the same.

The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention which are not mentioned can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. It will also be readily apparent that the objects and advantages of the invention may be realized and attained by means of the instrumentalities and combinations particularly pointed out in the appended claims.

In order to achieve the above object, the LED assembly of the present invention, the LED package in which the LED chip is embedded in the primary and secondary lenses; A movable support having the LED package mounted on an upper surface and having a ball joint at a lower side thereof; And a fixed support part in which the ball joint of the movable support part is movably supported, wherein the movable support part is tilted according to the irradiation distance by the ball joint coupling with the fixed support part and an orient according to the irradiation direction ( orientation is performed, and the asymmetric secondary lens is set to be spinable around an optical axis.

In this case, the asymmetric secondary lens is characterized in that it has an elliptical light distribution curve.

In addition, the asymmetric secondary lens is characterized in that the movable support portion is rotated around an optical axis to spin.

In addition, the asymmetric secondary lens is characterized in that to set the long axis of the elliptical light distribution curve to match the traveling direction of the vehicle.

In addition, the asymmetric secondary lens is made of an eight-shaped hemispherical lens, the LED package further comprises a metal substrate is a metal PCB on which the LED chip and the primary and asymmetric secondary lenses are mounted.

The fixed support portion includes a connection groove having a spherical inner circumferential portion into which the ball joint is inserted, and the fixed support portion prevents the connection groove from being opened due to heat concentration generated in the movable support portion. After inserting the joint into the connecting groove characterized in that the cogging process of the inlet of the connecting groove.

On the other hand, the LED assembly block of the present invention, the block body having a plurality of heat radiation fins on the outer surface; A plurality of LED assemblies arranged on the inner circumferential surface of the block body in a plurality of rows, the plurality of LED assemblies each having an individual orientation angle; And a protective cover coupled to the block body to surround the plurality of LED assemblies, wherein each of the plurality of LED assemblies includes: an LED package having an LED chip embedded in the primary and secondary lenses; A movable support part mounted on an upper surface and having a ball joint at a lower side thereof, and a fixed support part on which the ball joint of the movable support part is movably supported, wherein the movable support part is irradiated with a ball joint coupling with the fixed support part; Tilt according to the orientation according to the irradiation direction is made, the asymmetric secondary lens is characterized in that it is set to spin around the optical axis.

In this case, the asymmetric secondary lens is an asymmetric lens having an elliptical light distribution curve, characterized in that it is set so that the traveling direction of the vehicle and the long axis of the elliptical light distribution curve coincide.

On the other hand, LED assembly of the present invention, the LED package in which the LED chip is embedded in the primary and secondary lenses; A movable support having the LED package mounted on an upper surface and having a ball joint at a lower side thereof; And a fixed support part in which the ball joint of the movable support part is movably supported, wherein the movable support part is tilted according to the irradiation distance by the ball joint coupling with the fixed support part and an orient according to the irradiation direction ( orient), and the secondary lens is set to be spinable around an optical axis.

On the other hand, LED assembly block of the present invention, the block body; A plurality of LED assemblies which are arranged detachably on the inner circumferential surface of the block body and have individual orientations with three-way induction of tilt, orient and spin; And a protective cover coupled to the block body to surround the plurality of LED assemblies.

At this time, each of the plurality of LED assembly, the LED package in which the LED chip is embedded in the primary and secondary lenses; A movable support having the LED package mounted on an upper surface and having a ball joint at a lower side thereof; And a fixed support part in which the ball joint of the movable support part is movably supported, wherein the movable support part has a tilt according to the irradiation distance and an orientation according to the irradiation direction by the ball joint coupling with the fixed support part. The asymmetric secondary lens is characterized in that it is set to spin around the optical axis.

In addition, the asymmetrical secondary lens is an asymmetric lens having an elliptical light distribution curve, characterized in that the traveling direction of the vehicle and the long axis of the elliptical light distribution curve is set to match.

On the other hand, LED lighting device of the present invention, the housing body; And a plurality of LED assembly blocks detachably coupled to the outer circumference of the housing body, the plurality of LED assemblies having individual orientations sealed by a plurality of protective covers, wherein each of the plurality of LED assembly blocks comprises: the housing body. Block body detachably coupled to the outer periphery of; A plurality of LED assemblies which are arranged detachably on the inner circumferential surface of the block body and have individual orientations with three-way induction of tilt, orient and spin; And a protective cover coupled to the block body to surround the plurality of LED assemblies.

At this time, each of the plurality of LED assembly, the LED package in which the LED chip is embedded in the primary and secondary lenses; A movable support having the LED package mounted on an upper surface and having a ball joint at a lower side thereof; And a fixed support part in which the ball joint of the movable support part is movably supported, wherein the movable support part has a tilt according to the irradiation distance and an orientation according to the irradiation direction by the ball joint coupling with the fixed support part. The secondary lens is characterized in that for adjusting the light distribution angle, characterized in that the spin set around the optical axis.

In addition, each of the plurality of LED assembly, the LED package in which the LED chip is embedded in the symmetrical primary lens and the asymmetrical secondary lens; And a ball joint support means for supporting the LED package such that the tilt, orient and spin can be supported by a ball joint coupling structure.

The secondary lens of the asymmetric structure has an elliptical light distribution curve, and the secondary lens is set so that the traveling axis of the vehicle and the long axis of the elliptical light distribution curve coincide with each other.

In addition, each of the plurality of LED assemblies, the tilt angle and the orient angle is set according to the irradiation distance and the irradiation direction of the plurality of light distribution area, and the spin angle is set so that the long axis of the light distribution curve and the traveling direction of the vehicle It is done.

As described above, the present invention provides a light distribution curve of a lighting device (luminaire) in accordance with the setting of the various alignment angles, respectively, in which a plurality of LED assemblies each adopt a ball joint support structure within a plurality of LED assembly blocks set at different orientation angles. It is easy to design and, as a result, the uniformity can be maximized.

In addition, in the present invention, by adopting a fully removable assembly structure between a plurality of LED assembly and the block body, a plurality of LED assembly block and the housing body, the assembly and maintenance is easy and productivity and workability can be greatly improved.

Furthermore, in the present invention, as each component is miniaturized and has a simple structure, as well as reducing the production cost, the LED assembly adopts a ball joint support structure, so that standardization can be easily made and easy to maintain.

In addition, according to the present invention, it is easy to set various orientation angles of each LED assembly to randomly arrange the illumination position of each light source to reflect the amount of light transmitted to the driver's and pedestrian's eyes at night, especially in the rain. By reducing glare can be minimized.

In addition, the present invention can solve the problem of light pollution to the peripheral area of the road by preventing the unnecessary light is irradiated to the peripheral area or the other lane area of the road.

In addition, the present invention implements a lens of the LED package as an asymmetric lens and by providing an individual light distribution curve through the rotation of the elliptical light distribution with the orient according to the irradiation distance, the tilt according to the irradiation distance, to the surrounding area or the opposite lane area of the road There is an effect of intensively irradiating unnecessary light on the road.

1 is a perspective view of an embodiment of an LED assembly according to the present invention;
2 is a side view of the LED assembly of FIG.
Figure 3a is a side view of the LED package of Figure 1,
Figure 3b is a longitudinal cross-sectional view of the LED package of Figure 3a,
Figure 3c is a rear view of the LED package of Figure 3a,
4 is a block diagram of an LED assembly block equipped with the LED assembly of FIG.
5 is a block diagram of an LED assembly block without the LED assembly of Figure 1,
Figure 6a is a perspective view of a first embodiment of the LED lighting device to which the LED assembly block is applied,
Figure 6b is a cross-sectional view of the LED lighting device of Figure 6a,
Figure 6c is a perspective view of a second embodiment of the LED lighting device to which the LED assembly block is applied,
7A and 7B are explanatory diagrams of a light distribution structure to which spin is applied to an asymmetric secondary lens by a movable supporter;
7C is an explanatory view of a light distribution structure to which an orient and a tilt are applied by the movable supporter.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, It can be easily carried out. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of an embodiment of the LED assembly according to the invention, Figure 2 is a side view of the LED assembly of Figure 1, Figure 3a is a side view of the LED package of Figure 1, Figure 3b is the LED of Figure 3a 3 is a longitudinal cross-sectional view of the package, and FIG. 3C is a rear view of the LED package of FIG. 3A.

As illustrated in FIGS. 1 to 3C, the LED assembly 100 largely includes an LED package 110, a movable support 120, and a fixed support 130.

First, the LED package 110 includes an LED chip 111 therein and is mounted on the metal substrate 140. At this time, the metal substrate 140 is made of a metal printed circuit board (PCB) of star shape (☆) protruding regularly radially for heat dissipation.

In addition, the LED package 110 includes a primary lens 112 and a secondary lens 113 surrounding the primary lens 112 for dispersing strong straightness emitted from the LED chip 111 on the upper side. .

In particular, the secondary lens 113 is an asymmetric lens and is an eight-shaped hemispherical lens, in which one rhombus groove is formed symmetrically along the lens surface at the waist. At this time, the secondary lens 113 forms an elliptical light distribution curve of light irradiated through the LED chip 111 by the lens characteristics as described above, and rotates to variably apply the angle of the elliptical light distribution emitted on the road. can do.

By the way, the secondary lens 113 is not directly rotated to spin (spin), but by the rotation of the movable support 120. The secondary lens 113 forms a pair of rotating protrusions 113a and 113b at the bottom to be fixed and coupled to the metal substrate 140. At this time, the secondary lens 113 is fixed to the rotating projections (113a, 113b) to the metal substrate 140, coupled, and then rotates about the optical axis penetrating the movable support unit 120 to be described later below the LED chip 111 The spin can be formed, and the secondary lens 113 can spin in place.

As described above, the secondary lens 113 may be set to match the long axis of the elliptical light distribution curve with respect to the vehicle traveling direction. For example, when the secondary lens 113 forms an oval light distribution of 45 ° with respect to the vehicle traveling direction, a part of the light may be irradiated to the peripheral area of the road (see FIG. 8A to be described later). By setting the long axis of the elliptical light distribution curve to match the vehicle traveling direction so that most of the light is concentrated on the road, it is possible to form an elliptical light distribution of 0 ° with respect to the vehicle traveling direction (see FIG. 8B to be described later).

The movable support part 120 fixes the metal substrate 140 on which the LED package 110 is mounted on the upper part, and forms a ball joint 121 on the lower part to couple the movable support part 130 to the fixed support part 130. . That is, the movable support 120 is a ball joint 121 through the three-way induction of the orientation (orient) to set the irradiation direction, the tilt (tilt) to set the irradiation distance, the spin (spin) to set the direction of the elliptical light distribution curve ), The individual orientation of the LED package 100 can be set.

Here, 'tilt' indicates the degree of inclination (ie, 0 ° to 90 °) at an angle with respect to a horizontal line parallel to the ground, and 'orient' refers to an arbitrary point based on an arbitrary point in a horizontal plane parallel to the ground. The degree of angular spread (ie, 0 ° to 360 °) is represented, and 'spin' represents the degree of rotation in place about the optical axis. However, the orientation angle may include a desired irradiation direction through 90 ° rotation when the horizontal axis of the road is the reference axis (0 °) when light distribution is performed on one side of the left and right sides of the street lamp. 90 ° of rotation is sufficient.

This, the movable support 120 may reset the light distribution angle as needed, and may increase the leveling agent to at least three or more compared to the prior art.

Additionally, the movable support 120 may be automatically adjusted for the fixed support 130 through control by an automatic light distribution angle setting device (not shown), and a plurality of LEDs may be used when the operator selects a desired light distribution curve. Assembly 100 may be automatically set to a predetermined light distribution angle.

The fixed support 130 forms a connection groove 132 coupled to the ball joint 121 of the movable support 120 at the top. Here, the connection groove 132 has a spherical inner circumferential groove shape corresponding to the ball joint 121 so that the ball joint 121 can slide in contact with the ball joint 121. In this case, a thermal grease is filled between the outer circumference of the ball joint 121 and the connection groove 132 to increase the heat transfer efficiency.

In addition, the connection groove 132 is preferably inserted into the ball joint 121 of the movable support 120, and then finishing the connection by cogging (cogging) the inlet 133 of the connection groove 132.

The reason for performing such coking process is as follows. That is, heat concentration may occur in the center 122 of the movable support 120 that is recessed. At this time, in the inlet 133 of the connection groove 132, when high heat generated by heat concentration is transferred from the center 122 of the adjacent movable support 120, a phenomenon that occurs to the outside may occur. When the inlet 133 of the connecting groove 132 is open in this manner, the coupling between the ball joint 121 and the connecting groove 132 is loose, and thus the movable support 120 is difficult to fix. The preset orientation angle may be changed by the weight of 120. Therefore, in the LED assembly 100 of the present invention, a problem due to heat concentration between the movable support 120 and the fixed support 130 may be prevented through the coking process as described above.

Additionally, in the LED assembly 100 of the present invention, the ball joint 121 is formed in the movable support 120, and the connection groove 132 is formed in the fixed support 130, but the movable support 120 is reversed. The connection grooves 132 may be formed in the above and the ball joint 121 may be formed in the fixed support 130. However, the detailed description thereof will be omitted since it can be easily understood by those skilled in the art, and the description will be limited to the following description as shown in FIGS. 1 to 4.

In addition, the fixed support portion 130 forms a pair of coupling protrusions 131 for snap coupling to the LED assembly block 200 of FIGS.

Meanwhile, the movable supporter 120 and the fixed supporter 130 form communication holes 124 and 134 communicating with each other. In this case, the power supply wiring L is connected to the LED chip 111 from the connector 135 of the fixed support part 130 through the communication holes 124 and 134.

In addition, the movable support unit 120 and the fixed support unit 130 is a metal material (for example, Al alloy, Mg alloy, Al graphite alloy, Cu alloy excellent in thermal conductivity in order to transfer the heat emitted from the LED chip 111 to the outside) , Ag alloy, etc.).

As such, the LED assembly 100 can be used as a single light source, respectively, and when the light is irradiated to the ground, by setting the orientation angle freely to irradiate randomly within the light distribution curve, the glare due to the reflected light of the road surface while maintaining the same amount of light as before. Not only can it reduce, but the road's uniformity can be improved.

FIG. 4 is a configuration diagram of an LED assembly block equipped with the LED assembly of FIG. 1, and FIG. 5 is a configuration diagram of an LED assembly block without the LED assembly of FIG. 1.

As shown in FIG. 4 and FIG. 5, the LED assembly block 200 includes a block body 210 and a mounting unit 220.

The block body 210 supports a plurality of LED assemblies 100 simultaneously with a heat sink function for dissipating heat emitted from the plurality of LED assemblies 100. To this end, the block body 210 integrally protrudes a plurality of heat dissipation fins 211 on the outside, and forms a mounting portion 220 for elastically coupling and fixing the plurality of LED assemblies 100 on the inside.

Here, a brief look at the heat dissipation structure of the LED assembly 100 and the LED assembly block 200, the heat generated from the LED chip 111 of the LED assembly 100 is the metal substrate 140 of the LED assembly 100, It is released to the outside through the start support 120 and the fixed support 130, the block body 210 and the heat dissipation fin 211 of the LED assembly block 200.

In addition, the block body 210 is provided with a protective cover 212 surrounding the mounting portion 220 to protect the plurality of LED assembly 100. The protective cover 212 has a pair of coupling tabs 212a protruding from both sides, and the coupling tab 212a is a coupling hole for snap coupling with the coupling hooks 212c protruding from both sides of the block body 210. 212b).

The block body 210 has a connection connecting portion 213a disposed on an upper end in close contact with the mounting surface of the housing body of the street light, and a fixing nut 213b is disposed on an outer circumference of the connection connecting portion 213a. At this time, the fixing nut 213b easily assembles and separates the block body 210 from the housing body, and prevents the interconnection between the connection connecting portion 213a and the housing body from being separated.

In addition, the block body 210 forms a pair of assembling protrusions 214a and 214b on both sides of the connection connecting portion 213a. In this case, the pair of assembling protrusions 214a and 214b may be inserted into one side of the housing body to prevent the block body 210 from tilting or changing posture by external force such as shock or vibration applied to the street lamp. This allows the block body 210 to maintain the posture set once, so that the street light can be accurately illuminated in the desired area with the light distribution curve set once.

The mounting unit 220 is an area for fixing the plurality of LED assemblies 100 to the block body 210 and includes a plurality of seating grooves 221 and a plurality of elastic wires 222a and 222b. Here, the mounting unit 220 is arranged in three rows by configuring three LED assemblies 100 in one row. The number and total number of columns per column of the LED assembly 100 can be freely set in consideration of various conditions such as the lighting area of the street lamp, the installation place, etc. In the present embodiment, when the total nine LED assemblies 100 are mounted This will be described.

The seating recesses 221 are arranged in total to correspond to the arrangement of the plurality of LED assembly 100, each seating recess 221 is a shape corresponding to the bottom surface of the fixed support 130 of the LED assembly 100 described above Is done. As described above, the fixed support 130 of the LED assembly 100 forms a pair of coupling protrusions 131 snap-coupled to the elastic wires (222a, 222b) on both sides of the lower end.

On both sides of the seating groove 221, a pair of extension grooves 221a for inserting the coupling protrusions 131 protruding on both sides of the lower end of the fixed support 130 of the LED assembly 100 are formed to extend on both sides. . In this case, the extension groove 221a may be prevented from rotating in the mounting groove 221 as the shape of the fixed support 130 of the LED assembly 100 is substantially circular.

The pair of elastic wires 222a and 222b are disposed adjacent to the seating grooves 221 so as to cover the extension grooves 221a in each row. Each elastic wire 222a, 222b is fixed to the block body 210 by a plurality of fasteners (222c). At this time, the pair of elastic wires (222a, 222b) allows the LED assembly 100 to be elastically mounted in the mounting groove 221. The elastic wires 222a and 222b may be made of a material such as a piano wire.

The power distribution unit 223 includes a constant current substrate 223a, a plurality of power patterns 223b, and a bus bar 223c.

The constant current substrate 223a is installed at one side of the mounting unit 220 and is connected to the connection connection unit 213a to supply DC power supplied from an external power source to the LED assembly 100 through the housing body.

In the present embodiment, the constant current substrate 223a may selectively use a substrate capable of providing a corresponding voltage of 3V to 3.2V, respectively, corresponding to the number of LED assemblies 100 assembled to the mounting unit 220. For example, the constant current substrate 223a uses a substrate capable of applying a voltage of 9V when the three LED assemblies 100 are used for the block body 210, and 20V when the six LED assemblies 100 are used. Use a substrate that can apply a voltage of. In particular, the constant current substrate 223a has a boost up circuit to supply a uniform voltage of 3 to 3.2V, respectively, when using the nine LED assemblies 100 as in the present embodiment, and can apply a voltage of 28V. Adopt a substrate. At this time, the boost-up circuit increases the voltage of 24V applied from an external power source to 28V and supplies stable power to nine LED assemblies 100.

The plurality of power patterns 223b are disposed across the plurality of seating grooves 221 along each row. Here, each mounting groove 221 is provided with a connection terminal 222d for connection with the LED assembly 100, a plurality of power supply pattern 223b is electrically connected to the connection terminal 222d, respectively.

In particular, the connection terminal 222d is electrically connected to the connector 134 disposed inside the fixed support 130 of the LED assembly 100 without any manipulation when the LED assembly 100 is mounted on the mounting unit 220. . This is because the mechanical and electrical connection is made in a single operation through the snap coupling of the fixed support 130 of the LED assembly 100 through the elastic wires (222a, 222b), the operator can quickly and easily the LED assembly 100 This is to allow the block body 210 to be installed.

The bus bar 223c is disposed at a right angle with respect to the plurality of power patterns 223b on one side of the mounting part 220. At this time, the bus bar 155 is electrically connected to the plurality of power patterns 223b in order to distribute the power applied from the constant current substrate 223a to the plurality of power patterns 223b.

Figure 6a is a perspective view of a first embodiment of the LED lighting device to which the LED assembly block is applied, Figure 6b is a sectional view of the LED lighting device of Figure 6a.

6A and 6B, the LED lighting device 300 of one embodiment forms the housing body 301 into a polygon (for example, a octagon). In this case, the plurality of LED assembly blocks 200 are detachably assembled along the outer circumference of the housing body 301.

First, the housing body 301 is composed of an upper plate 301a and a lower plate 301b having a space formed therebetween.

The top plate 301a of the housing body 301 is divided into a number of sectors 302, for example twelve sectors 302. One recess 303 is formed at each end of each sector 302, and each sector 302 is inclined downward from the center toward the recess 303. In addition, the plurality of sectors 302 are curved inwardly to form valleys as they move away from the boundary portion 304 of each sector 302 which is in line contact with each other.

As described above, the structure in which the inclined downward toward the groove 303 toward the groove 303 from the center of each sector 302 and the valley formed in the central portion is inclined of the plurality of sectors 302 without accumulation of water on the top plate when it is snowing or raining. Rainwater flows along to guide the drain through the groove (303). As a result, the rain water naturally flows to the outside of the protective cover 212 located below the recess 303 to clean the protective cover 212 to prevent the light transmittance of the protective cover 212 from being lowered by dust or foreign matter. It can maintain transparency.

On the other hand, the housing body 301 is made of an angle corresponding to the number of the plurality of LED assembly blocks 200 assembled along the outer periphery. Here, 12 mounting surfaces are provided along the outer circumference so that the 12 LED assembly blocks 200 are coupled thereto, but the present invention is not limited thereto.

Each of the twelve mounting surfaces is assembled with the upper one side of the LED assembly block 200 in a surface contact state. In this case, each of the twelve mounting surfaces has grooves 303 formed therein, and the grooves 303 have protrusion terminals 305a connected to the connection connecting portions 213a of the LED assembly block 200. Four connection terminals 305a are formed to be connected to a pair of power supply wires and a pair of control signal wires connected to a circuit board, respectively, and are connected to the connection connection part 213a of the LED assembly block 100. Power is applied to the constant current substrate 223a. In addition, the connection terminal 305a is surrounded by a cylindrical fastening protrusion 305b having a thread formed on its outer circumference, and the fastening protrusion 305b is fastened to the fixing nut 213b of the LED assembly block 200.

In addition, a pair of assembling grooves 306a and 306b are formed at both sides of the twelve mounting surfaces, respectively, around the connection terminal 305a. The pair of assembly protrusions 214a and 214b of the LED assembly block 200 is inserted into and fixed to the assembly grooves 306a and 306b to suppress left / right flow. At this time, when the LED assembly block 200 is assembled to the housing body 301, as the assembly protrusions 214a and 214b are inserted into the assembly grooves 306a and 306b, the LED assembly block 200 is inserted into the housing body 301. After coupling, the LED assembly block 200 may be prevented from inclining in one direction and in the opposite direction about the fastening protrusion 305b.

Next, the housing body 401 has a plurality of fastening holes 307 formed at the top plate 401 a to which the pieces are fastened when connected to an arm (not shown) of the street lamp, and a through hole 308 is formed at the center thereof. The through hole 308 of the top plate 401a passes a wire for power supply from an external AC power source. At this time, the upper plate 401a of the housing body 401 is made of a metal material having excellent thermal conductivity, such as Al, or the upper plate 401a is preferably made of an insulator in order to protect against lightning. Insulators are preferably made of engineering plastics so that) may have a certain stiffness together.

In addition, a power supply device 309 is provided on the lower surface of the upper plate 301a. The power supply device 309 has a circuit wiring electrically connected to the LED assembly block 200 at an outer side of the circuit board 309a, and an AC / DC converter 309b at the center thereof. At this time, the circuit wiring disposed on the outer circumferential portion of the circuit board 309a is composed of a power supply wiring and a control signal wiring, and is electrically connected to the AC / DC converter 309b. The power supply wiring and the control signal wiring are connected to the connection terminal 305a connected to the connection connecting portion 213a of the plurality of LED assembly blocks 200 coupled to the outer circumference of the housing body 401 to connect the plurality of LED assembly blocks ( 200) to supply power and control signals. In addition, the AC / DC converter 309b may preferably use a switching mode power supply (SMPS), for example, and the SMPS of the present embodiment may supply voltage to nine LED assemblies 200. Take this as 24V.

Through this, in the present invention, when AC power is applied from the outside, the AC power supply unit 309 performs AC / DC conversion so that the DC power supply and the control signal are connected to each LED assembly block through the connection terminal 405a and the connection connection unit 213a. Applied to the constant current substrate 223a of the (200), power is supplied from the constant current substrate 223a to the plurality of LED assemblies 200 through the bus bar (223c) and the power supply pattern (223b) to the LED chip 111 Driven.

Figure 6c is a perspective view of a second embodiment of the LED lighting device to which the LED assembly block is applied.

LED lighting device 400 of the embodiment shown in Figure 6c is made of a bar type housing body 401 has a predetermined length. In this case, the plurality of LED assembly blocks 200 are detachably assembled along the longitudinal direction of both sides of the housing body 401.

6C is different from the shape of the housing body 401 and the arrangement of the plurality of LED assembly blocks 200 in comparison with the LED lighting device 300 of the first embodiment, but all other configurations same. Therefore, the detailed configuration of the second embodiment is omitted.

7A and 7B are explanatory views of a light distribution structure in which spin is applied to an asymmetric secondary lens by a movable supporter.

The LED lighting device 500 for road lighting may adjust the angle of the elliptical light emitted by the road by applying spin to the asymmetric secondary lens 113 through rotation about the optical axis of the movable support 120. First, when the LED lighting device 500 performs elliptical light distribution at approximately 45 ° with respect to the vehicle traveling direction as shown in FIG. 7A, the LED lighting device 500 is limited to the peripheral area of the road (here for convenience of description). Irradiate part of the elliptical light distribution. In the general LED lighting device, due to light distribution as shown in FIG. 7A, light is irradiated to the peripheral area 510 of the road. This may cause a problem such as light pollution by irradiating light to the surrounding area 510 irrelevant to the road lighting.

In the present invention, by mounting the LED assembly 100 of Figure 1 in the LED lighting device 500, it is possible to concentrate the irradiation of the light of the elliptical light emitted to the peripheral area 510 to the road. As described above, the LED assembly 100 of FIG. 1 includes the LED package 110 to which the asymmetric secondary lens 113 is applied, so that the angle of elliptical light distribution can be adjusted with respect to the vehicle traveling direction. That is, the LED lighting device 500 sets the secondary lens 113 of the LED assembly 100 to form an elliptical light distribution at approximately 0 ° with respect to the vehicle traveling direction as shown in FIG. 7B, so that the light of the elliptical light distribution is illuminated by the road. Most of the time. Through this, the LED lighting device 500 is set to limit the light irradiated to the peripheral area 510 of the road unnecessarily, to implement a light distribution structure in which the light pollution problem that may occur in the peripheral area 510 is eliminated. Can be.

As described above, in the present invention, in the plurality of LED assembly blocks 200 set to different orientation angles, the plurality of LED assemblies 100 adopt ball joint support structures, respectively, so that the lighting apparatuses can be set according to individual various orientation angle settings. The light distribution curve of the (luminaire) can be easily designed, and as a result, the uniformity can be maximized.

7C is an explanatory view of a light distribution structure to which an orient and a tilt are applied by the movable supporter.

Although the LED lighting apparatuses 600a and 600b of FIG. 7C form a light distribution structure for the left and right regions of the road, a light distribution structure will be described by applying an orient and tilt only to the right region for convenience of description. do. At this time, the LED lighting device (600a, 600b) is a total of 54 LED assembly 100 for the light distribution structure for the left and right areas of the road (that is, 27 LED assembly 100 is assigned to each of the left and right areas) It is assumed that the case of accommodating.

In addition, in the present invention, the right area of the road is divided into nine unit areas of the same area. In this case, the unit area is displayed in a matrix form for convenience and represented by rows (ie, A1, A2, A3) and columns (ie, B1, B2, B3), and the lower layers are (A1, B1), (A1, B2), ( A1, B3), the intermediate layers are (A2, B1), (A2, B2), (A2, B3), and the upper layers are (A3, B1), (A3, B2), (A3, B3).

On the other hand, Figure 7c shows an 'orient application line' showing the case where the orient is applied by the LED lighting device 600a, which is the LED lighting device 600a on the horizontal plane of the LED lighting device 600a located at a predetermined height The light distribution curve formed by) is shown. At this time, the orient application line of FIG. 7C shows a case where the application direction is changed while changing the irradiation direction by 10 ° by the LED lighting device 600a (that is, 0 ° to 90 °).

In addition, FIG. 7C shows a 'tilt application line' indicating a case where tilt is applied by the LED lighting device 600b, which is a vertical surface of the LED lighting device 600b positioned at a predetermined height. The light distribution curve formed by) is shown. In this case, the tilt application line of FIG. 7C shows a case where the irradiation distance is changed by 10 ° by the LED lighting device 600b (that is, 0 ° to 90 °).

In general, the illumination is inversely proportional to (irradiation distance) ² - that is, the illuminance = 1 / (irradiation distance) ^2]. In other words, even if the unit area of the right side of the road area is the same as each other, the degree of placement of the tilt application line is different depending on the irradiation distance, the closer the irradiation distance is concentrated and the farther the irradiation distance is rarely disposed. For example, when four tilt application lines are arranged in the unit areas A1 and B1 corresponding to the distance 1, one half of the unit areas A1 and B1 are located in the unit areas A1 and B2 corresponding to the distance 2. Two tilt application lines corresponding to are arranged.

For this reason, the LED lighting devices 600a and 600b allocate 27 LED assemblies 100 (that is, three LED assembly blocks 200) to each unit area according to the irradiation distance.

Specifically, a light distribution curve is set by allocating a total of six LED assemblies 100 to a unit region corresponding to column B1 (that is, (A1, B1), (A2, B1), and (A3, B1)). 2 units per unit area), and 9 LED assemblies 100 are allocated to the unit area corresponding to column B2 (that is, (A1, B2), (A2, B2), and (A3, B2)). (I.e., assign three to each unit area), and total 12 LED assemblies (100) in the unit areas corresponding to column B3 (ie, (A1, B3), (A2, B3), and (A3, B3)). ) To set the light distribution curve (that is, assign three to each unit area). At this time, the far place is irradiated by applying a lens (for example, 25 ° lens) with a small angle to the LED package 110 as a light source, the near place is a lens (for example, 42 ° lens) with a large angle to the LED package 110 ) Is applied as a light source. This is to implement the light distribution curve to increase the uniformity in the road area.

In the present invention, the three-way induction of the tilt, orient and spin can be individually aligned to implement a light distribution curve for the road area.

In addition, according to the present invention, as a totally removable assembly structure is employed between the plurality of LED assemblies 100 and the block body 210, the plurality of LED assembly blocks 200, and the housing bodies 301 and 401, the assembly and maintenance are easy. Productivity and workability can be greatly improved.

In addition, in the present invention, as each component is miniaturized and has a simple structure, as well as reducing the production cost, the LED assembly 100 adopts a ball joint support structure so that standardization can be easily made and easy to maintain.

In the present invention, it is easy to set a variety of individual orientation angles of each of the LED assembly 100 by randomly placing the illumination position of each light source, the amount of light that is reflected on the road surface at night, especially in rainy weather and transmitted to the eyes of drivers and pedestrians In addition to minimizing glare by reducing the amount of light, it is possible to solve the problem of light pollution to the area around the road by preventing unnecessary light is irradiated to the area around the road.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limited to the embodiments set forth herein. Various changes and modifications may be made by those skilled in the art.

100: LED assembly 110: LED package
111: LED chip 112: primary lens
113: secondary lens 120: movable support portion
121: ball joint 122: center
124 and 134: communication hole 130: fixed support
131: engaging projection 132: connecting groove
133: inlet 135: connector
140: metal substrate 200: LED assembly block
210: block body 211: heat radiation fins
212a: engaging tab 212b: engaging hole
212c: coupling hook 213a: connection connection
213b: fixing nut 214a, 214b: assembly protrusion
220: mounting portion 221: seating groove
222a, 222b: elastic wire 222c: fastener
222d: connection terminal 223: power distribution
223a: constant current substrate 223b: power supply pattern
223c: bus bar 300, 400: LED lighting device
301 and 401: housing body 301a: top plate
301b: bottom plate 302: sector
303: groove 304: boundary portion
305a: connection terminal 305b: fastening protrusion
306a, 306b: assembly groove 307: fastening hole
308: through hole 309: power supply
309a: circuit board 309b: AC / DC inverter

Claims (17)

LED package with LED chip inside primary and asymmetric secondary lens;
A movable support having the LED package mounted on an upper surface and having a ball joint at a lower side thereof; And
And a fixed support part in which the ball joint of the movable support part is fluidly supported.
The movable support part has a tilt according to the irradiation distance and an orientation according to the irradiation direction by ball joint coupling with the fixed support part, and the asymmetric secondary lens spins around an optical axis. LED assembly for adjusting the asymmetric light distribution curve, characterized in that possible set. The LED assembly of claim 1, wherein the asymmetrical secondary lens has an elliptical light distribution curve. The LED assembly of claim 1, wherein the asymmetric secondary lens is rotated by rotating the movable supporter about an optical axis. The LED assembly of claim 1, wherein the asymmetric secondary lens sets the long axis of the elliptical light distribution curve to match the traveling direction of the vehicle. The method of claim 1, wherein the asymmetrical secondary lens is made of an eight-shaped hemispherical lens, the LED package further comprises a metal substrate is a metal PCB on which the LED chip and the primary and asymmetric secondary lenses are mounted. LED assembly to adjust the asymmetric distribution curve. The method of claim 1, wherein the fixed support portion has a connection groove having a spherical inner peripheral portion into which the ball joint is inserted, the fixed support portion, the connection groove is opened due to heat concentration generated in the movable support portion LED assembly for adjusting the asymmetric light distribution curve, characterized in that for cogging the inlet of the connection groove after inserting the ball joint into the connection groove. Block body having a plurality of heat radiation fins on the outer surface;
A plurality of LED assemblies arranged on the inner circumferential surface of the block body in a plurality of rows, the plurality of LED assemblies each having an individual orientation angle; And
A protective cover coupled to the block body to surround the plurality of LED assemblies;
Each of the plurality of LED assemblies,
An LED package in which an LED chip is embedded in the primary and asymmetric secondary lenses, a movable support portion having the LED package mounted on an upper surface and having a ball joint at a lower side thereof, and a ball joint of the movable support portion are fluidly supported. And a fixed support portion, wherein the movable support portion is tilted according to an irradiation distance and an orient according to an irradiation direction by a ball joint coupling with the fixed support portion, and the asymmetric secondary lens is rotatable about an optical axis. LED assembly block, characterized in that set. 8. The LED assembly block according to claim 7, wherein the asymmetric secondary lens has an elliptical light distribution curve and is set such that the traveling direction of the vehicle coincides with the long axis of the elliptical light distribution curve. LED package in which the LED chip is embedded in the primary and secondary lenses;
A movable support having the LED package mounted on an upper surface and having a ball joint at a lower side thereof; And
And a fixed support part in which the ball joint of the movable support part is fluidly supported.
The movable support part has a tilt according to the irradiation distance and an orient according to the irradiation direction by ball joint coupling with the fixed support part, and the secondary lens spins around an optical axis. LED assembly, characterized in that set possible. Block body;
A plurality of LED assemblies which are arranged detachably on the inner circumferential surface of the block body and have individual orientations with three-way induction of tilt, orient and spin; And
LED assembly block comprising a protective cover coupled to the block body to surround the plurality of LED assemblies. 11. The method of claim 10,
Each of the plurality of LED assemblies,
LED package with LED chip inside primary and asymmetric secondary lens;
A movable support having the LED package mounted on an upper surface and having a ball joint at a lower side thereof; And
And a fixed support part in which the ball joint of the movable support part is fluidly supported.
The movable support portion, by the ball joint coupling with the fixed support portion is made in accordance with the tilt and irradiation direction according to the irradiation distance, the asymmetric secondary lens, characterized in that the asymmetrical secondary lens is set to spin around the optical axis LED assembly block. 12. The LED assembly block according to claim 11, wherein the asymmetrical secondary lens has an elliptical light distribution curve and is set such that the traveling direction of the vehicle coincides with the long axis of the elliptical light distribution curve. A housing body; And
Removably coupled to the outer periphery of the housing body and a plurality of LED assembly is a plurality of LED assembly block is formed by a plurality of protective cover is made of an individual orientation,
Each of the plurality of LED assembly blocks,
A block body detachably coupled to an outer circumference of the housing body;
A plurality of LED assemblies which are arranged detachably on the inner circumferential surface of the block body and have individual orientations with three-way induction of tilt, orient and spin; And
LED lighting device comprising a protective cover coupled to the block body to surround the plurality of LED assemblies. The method of claim 13,
Each of the plurality of LED assemblies,
LED package in which the LED chip is embedded in the primary and secondary lenses;
A movable support having the LED package mounted on an upper surface and having a ball joint at a lower side thereof; And
And a fixed support part in which the ball joint of the movable support part is fluidly supported.
The movable support part is formed by tilting according to the irradiation distance and an orientation according to the irradiation direction by the ball joint coupling with the fixed support part, and the secondary lens is set to be spinable around an optical axis. LED lighting device, characterized in that for adjusting the angle. The method of claim 13,
Each of the plurality of LED assemblies,
An LED package in which an LED chip is embedded in a symmetric primary lens and an asymmetric secondary lens; And
LED lighting device characterized in that it comprises a ball joint support means for supporting the LED package to be tiltable, orient and spin by a ball joint coupling structure. 16. The LED lighting apparatus according to claim 15, wherein the secondary lens of the asymmetric structure has an elliptical light distribution curve, and the secondary lens is set to coincide with the long axis of the elliptical light distribution curve of the vehicle. The method of claim 13, wherein each of the plurality of LED assembly, the tilt angle and the orient angle is set according to the irradiation distance and the irradiation direction of the plurality of light distribution area, the spin angle so that the traveling axis of the vehicle and the long axis of the light distribution curve coincide LED lighting device, characterized in that set.

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