KR101873547B1 - Illumination system - Google Patents

Abstract

The present invention provides a light emitting device package including a light emitting module including a light emitting device package, a socket in which a power module for generating driving power consumed by the light emitting device package is disposed, an opening to be coupled with the socket, A lighting device including a light-transmitting case is provided.

Description

[0001] Illumination system [0002]

An embodiment relates to a lighting device.

BACKGROUND ART Light emitting devices such as light emitting diodes and laser diodes using semiconductor materials of Group 3-5 or 2-6 group semiconductors have been widely used for various colors such as red, green, blue, and ultraviolet And it is possible to realize a white light beam having high efficiency by using a fluorescent material or combining colors.

Such a light emitting device has advantages such as low power consumption, semi-permanent lifetime, quick response speed, safety, and environmental friendliness compared to conventional light sources such as fluorescent lamps and incandescent lamps, It is important to increase the efficiency of the light emitting device as the brightness required for a lamp used in daily life and a light for a structural signal is increased.

The embodiment provides an illuminating device which can easily emit indirect light to be used for interior illumination, and easily emit heat of the light emitting module.

A lighting apparatus according to an embodiment of the present invention includes a light emitting module including a light emitting device package, a socket in which a power module for generating a driving power consumed by the light emitting device package is disposed, an opening to be coupled with the socket, And a translucent case formed with a seated part.

The illuminating device according to the embodiment can emit reflected light for the light emitted from the light emitting device package, can exhibit the effect of reflected light, that is, indirect light, can provide soft light to the user, .

Further, the illumination device according to the embodiment has an advantage in that a film containing at least one of the phosphor and the light diffusion material is disposed on at least one of the outer surface and the inner surface of the light-transmissive case to prevent the lifetime of the fluorescent particles from being lowered .

Further, in the illuminating device according to the embodiment, the light emitting module is disposed in the seating portion opened on the outer surface of the light transmitting case, so that the heat generated in the light emitting module can be dissipated to the outside.

1 is a perspective view showing a lighting apparatus according to a first embodiment.
2 is an exploded perspective view showing the illumination device shown in Fig.
3 is a cross-sectional view showing the illumination device shown in Fig.
FIGS. 4 and 5 are plan views before and after the light emitting device package is disposed on the first substrate included in the light emitting module shown in FIG. 3 according to the embodiment.
6 is an exploded perspective view showing the first substrate shown in FIG.
7 is a perspective view showing an embodiment of the light emitting device package shown in FIG.
8 is a control block diagram of a power module for supplying driving power to the light emitting module shown in FIG.
9 is a simplified circuit diagram of the power module shown in Fig.
10 is a perspective view showing a lighting apparatus according to the second embodiment.
11 is an exploded perspective view showing the illumination device shown in Fig.
12 is a cross-sectional view showing the illumination device shown in Fig.
13 is a perspective view showing a lighting apparatus according to the third embodiment.
14 is an exploded perspective view showing the illumination device shown in Fig.
14 is a cross-sectional view showing the illumination device shown in Fig.

In the description of the present embodiment, in the case where one element is described as being formed "on or under" of another element, the upper (upper) or lower (lower) on or under includes both the two elements being directly contacted with each other or one or more other elements being indirectly formed between the two elements. Also, when expressed as "on or under", it may include not only an upward direction but also a downward direction with respect to one element.

In the drawings, the thickness and size of each layer are exaggerated, omitted, or schematically illustrated for convenience and clarity. Therefore, the size of each component does not entirely reflect the actual size.

Further, the angles and directions referred to in the description of the structure of the illumination device in this specification are based on those described in the drawings. In the description of the structure constituting the illumination device in the specification, reference points and positional relationship with respect to angles are not explicitly referred to, refer to the related drawings.

FIG. 1 is a perspective view showing a lighting device according to a first embodiment, FIG. 2 is an exploded perspective view showing the lighting device shown in FIG. 1, and FIG. 3 is a sectional view showing the lighting device shown in FIG.

1 to 3, the lighting apparatus 100 includes a light transmitting case 110, a light emitting module 120, a reflector 130, a power module 140, a socket 150, and an outer case 160 can do.

The light transmissive case 110 may reflect light emitted from the light emitting module 120 to the front or rear surface of the illumination device 100 through reflection, refraction, or the like.

The translucent case 110 may be formed in a bulb shape, a semicircular shape, and a polygonal shape, and may have other shapes, but is not limited thereto.

The outer case 160 can determine the outline of the lighting apparatus 100 by enclosing the power module 140 and the socket 150.

However, although the outer case 160 is shown as forming the outer appearance of the lighting device 100 in the embodiment, the outer case 160 may not be formed, and the present invention is not limited thereto.

Hereinafter, components of the illumination device 100 according to the embodiment will be described in detail.

The transparent case 110 has an opening G1 to be coupled with the socket 150. At least one of the inner surface and the outer surface of the transparent case 110 is coated with at least one of a fluorescent material, , A film (not shown) including at least one of a light dispersing agent and a light diffusing material may be disposed, but is not limited thereto.

Here, since the transparent case 110 is made of a glass material or may be weak in weight or external impact, a polymethylmethacrylate (PMMA) or a transparent acrylic resin having good light resistance, heat resistance, And may be a light guide plate made of a flat type or a wedge type.

Further, a reflective member (not shown) including at least one of silver, gold, copper, and nickel may be disposed on at least one of the inner and outer surfaces of the transparent case 110, and a light transmitting pattern may be formed. Do not limit.

The above-mentioned transparent acrylic resin has a high strength, is less deformed, is light, and has high transmittance of visible light.

The light transmitting case 110 may have a seating portion G2 on which the light emitting module 120 is disposed.

The seating part G2 is shown as being overlapped with the opening part G1 and the vertical axis A in the embodiment but the seating part G2 has the light transmitting case 110 which is not overlapped with the opening part G1 and the vertical axis A, But it is not limited thereto.

Here, at least one of the protrusion v and the groove (not shown) to be coupled with the light emitting module 120 may be formed on a part of the inner surface of the transparent case 110. In this embodiment, the protrusion v ) Is formed.

At this time, the seating part G2 may be formed as a flat surface or a curved surface in a part overlapping one surface of the light emitting module 120, but is not limited thereto.

That is, when the light emitting module 120 is fixedly coupled to the protrusion v, the seating part G2 is formed so that the surfaces of the parts overlapping the surface of the light emitting module 120 are staggered Can be formed.

A detailed description of the seating portion G2 will be described later.

The light emitting module 120 may include a first substrate 121 and at least one light emitting device package 124 disposed on the first substrate 121.

The light emitting device package 124 includes the first and second light emitting device packages 122 and 123 that emit light of different colors. However, the first and second light emitting device packages 122 and 123, Can emit light of the same color to each other, and the number and type are not limited.

In the embodiment, the first substrate 121 is shown as having a disk shape, and is not limited thereto.

The first substrate 121 may be a printed circuit board, a flexible printed circuit board, or a metal core PCB (MCPCB). In the case of the printed circuit board, a printed circuit board A printed circuit board (PCB), a printed circuit board (PCB), a printed circuit board (PCB) having a plurality of layers, and the like. In the embodiment, the PCB is a printed circuit board.

In addition, the first substrate 121 may be formed of a material that efficiently reflects light, or may be formed of a color whose surface is efficiently reflected, for example, white, silver, or the like.

The first light emitting device package 122 is disposed at the center of the first substrate 121 and the second light emitting device package 123 is disposed radially around the first light emitting device package 122, Do not limit.

Here, the first and second light emitting device packages 122 and 123 may include a light emitting device (not shown) including a light emitting diode (LED), and may include red, green, blue, white, Can emit light having at least one color, and can also use UV LEDs, but is not limited thereto.

However, each of the first and second light emitting device packages 122 and 123 may emit different first and second colors of light so that the color emitted from the lighting device 100 can be varied by the user .

Here, the first substrate 121 includes a first surface (not shown) where the first and second light emitting device packages 122 and 123 are disposed, and a second surface (not shown) opposite to the first surface and adjacent to the seating portion G2 Not shown).

The first substrate 121 may be provided with a groove h to be fastened to at least a part of the projection v and may be formed with a screw or the like in order to fix the first substrate 121 and the seating portion G2 to the groove h. Threads may be formed so as to be coupled by the bolts n, and may be joined in a hook manner or in a rivet manner, but are not limited thereto,

An adhesive (not shown) or an adhesive tape (not shown) may be disposed between the second surface and the seating portion G2, but is not limited thereto.

The light emitting module 120 will be described in detail later.

The power module 140 may include a plurality of components 142 disposed on the second substrate 141 and the second substrate 141.

Here, the plurality of components 142 may include, for example, a power conversion unit (not shown) for converting an external power source into driving power consumed in the first and second light emitting device packages 122 and 123, A power supply unit (not shown) for supplying the driving power converted by the power supply unit to at least one of the first and second light emitting device packages 122 and 123, a light emitting module unit 120, And an electrostatic discharge (ESD) protection device for preventing ESD (Electrostatic Discharge) from being supplied to the light emitting module unit 120, but the present invention is not limited thereto.

The power conversion unit, the power supply unit, and the control unit will be described in detail later.

The socket 150 may include an insertion portion 151 where the power module 140 is disposed and a connection terminal 152 electrically connected to the power source.

The socket 150 may be formed of a material having excellent insulation and durability, and may be formed of, for example, a resin material, but is not limited thereto.

The insertion portion 151 may be formed in a hollow cylindrical shape, a polygon such as a triangle, a square, or the like.

The connection terminal 152 may be connected to the power source, for example, in a socket manner.

That is, the connection terminal 152 may include an insulating member 155 between the first electrode 153 and the second electrode 154 at the side portion, the first and second electrodes 153 and 154, The first and second electrodes 153 and 154 may be powered by the power source.

However, the shape of the connection terminal 152 may be variously modified according to the design of the illumination device 100, and thus the shape is not limited thereto.

At this time, the second substrate 141 may be arranged in a direction perpendicular to one surface of the first substrate 131 to smoothly flow the air in the socket 150, but is not limited thereto.

Meanwhile, the second substrate 141 may be disposed in the socket 150 in a direction perpendicular to the longitudinal direction of the socket 150, but is not limited thereto.

The power module 140 may be electrically connected to the connection module 152 of the light emitting module 120 and the socket 150 by the first connection member 143 and the second connection member 144, respectively.

In the embodiment, the first and second connecting members 143 and 144 are shown as being connected by a line-shaped connecting line, but they may be connected by a connector, but are not limited thereto.

More specifically, the second connecting member 144 is electrically connected to the first and second electrodes 153 and 154 of the connection terminal 152, and can receive the power.

At least one of the inside and the top of the socket 150 may be provided with a reflection plate 130

The reflection plate 130 is disposed to face the light emitting module 120 disposed on the seating portion G2, but may be disposed on the side surface of the light transmitting case 110, but is not limited thereto.

That is, although the reflection plate 130 is shown as being formed as a flat surface, it may be formed to be inclined from the center to the side direction, or inclined from the side to the other side direction, but is not limited thereto.

The reflection plate 130 may include at least one of silver, aluminum, copper, and gold, or an alloy thereof. The cross-sectional shape of the reflection plate 130 may be a horn shape, a polygonal shape, or a semicircular shape. Do not.

A hole 132 is formed in the center of the reflector 130 so that the first connecting member 143 connecting the light emitting module 120 and the power module 140 can be inserted.

That is, the first connection member 143 may include a first connection line (not shown) to which (+) power is applied and a second connection line (not shown) to which a negative power is applied. I do not.

The first connecting member 143 may be soldered to the light emitting module 120 and the power module 140 by soldering or may be formed at both ends of a ring type so that the light emitting module 120 and the power module 140 or may be inserted into holes formed in the light emitting module 120 and the power module 140 so that both ends thereof are formed as a pin type, It is not limited to this.

The outer case 160 may be coupled with the socket 150 to accommodate the light emitting module 120, the power module 140, and the like.

The outer case 160 may include a ring structure 162, a cone shaped body portion 161 opened inwardly, and a connection portion 163 physically connecting the ring structure 162 and the body portion 161 .

Although the body portion 161 is shown as having a cone shape, it is not limited thereto.

The connection portion 163 includes a plurality of ribs, and an opening G3 may be formed between the plurality of ribs, but is not limited thereto.

Also, the outer case 160 may be formed of a material having excellent insulation and durability, for example, a resin material.

4 and 5 are plan views after the light emitting device package is disposed on the first substrate included in the light emitting module shown in FIG. 3 according to the embodiment, FIG. 6 is an exploded perspective view showing the first substrate shown in FIG. 4 And FIG. 7 is a perspective view showing an embodiment of the light emitting device package shown in FIG.

Referring to FIGS. 4 and 7, the light emitting module 120 may include a first substrate 121 and a first and second light emitting device packages 122 and 123.

The first light emitting device package 122 shown in FIGS. 4 and 5 is disposed at the center of the first substrate 121 and the second light emitting device package 123 is disposed at the center of the first light emitting device package 122 Four types of the first and second light emitting device packages 122 and 123 are radially disposed adjacent to the outer surface of the first substrate 121. However, the type, number, and arrangement of the first and second light emitting device packages 122 and 123 are not limited.

In an embodiment, the light emitting module 120 includes a first light emitting device package 122 emitting light of a first color and a second light emitting device package 123 emitting light of a second color different from the first color The first and second colors of light may be of the same color, but are not limited thereto.

The light emitting module 120 may emit light of the first, second, and third colors different from the first and second colors under the control of the power module 140, but is not limited thereto .

First, the first light emitting device package 122 emits blue light, and the second light emitting device package 123 emits yellow light. However, the present invention is not limited thereto.

Here, the first substrate 121 includes a base layer 121a, a copper foil layer 121b disposed on the base layer 121a, and first and second light emitting device packages 122 and 123 disposed on the copper foil layer 121b And an insulating layer 121c, which is partially opened.

Although the first substrate 121 is flat in the embodiment, the portion where the second light emitting device package 123 is disposed may be formed at a predetermined inclination from the portion where the first light emitting device package 122 is disposed, It is not limited to this.

For example, when the first substrate 121 is inclined, when the second light emitting device package 123 is disposed at an inclined portion of the first substrate 121, the illuminating device 100 may include first, The first and second color mixing regions, which are emitted from the two light emitting device packages 121 and 122, respectively, are formed close to the upper surface of the first light emitting device package 121, Uniformity of light of three colors can be increased.

The base layer 121a is made of FR-4 material, but is not limited thereto.

At least one hole v may be formed in the base layer 121a to engage with the projection v formed on the seating portion G2.

The copper foil layer 121b is disposed on the base layer 121a having an insulating property and includes first to fourth wiring patterns 31 to 34 connected to the first wiring 143, The first to fourth electrode patterns 35 to 38 and the first to fourth electrode patterns 35 to 38 on which the packages 122 and 123 are disposed and the first to fourth wiring patterns 31 to 34 A connection pattern 39 may be included.

The first and second wiring patterns 31 and 32 of the first to fourth wiring patterns 31 to 34 are electrically connected to the first and second electrode patterns 35 and 36 in which the first light emitting device package 122 is disposed, (39) to supply driving power when the first light emitting device package (122) is disposed.

The third and fourth wiring patterns 33 and 34 of the first to fourth wiring patterns 31 to 34 are electrically connected to the third to fourth electrode patterns 37 and 37 in which the four second light emitting device packages 123 are disposed. 38 and the connecting pattern 39 to supply driving power when the second light emitting device package 123 is disposed.

The driving power supplied to the first to fourth wiring patterns 31 to 34 may be supplied to at least one of the first and second light emitting device packages 122 and 123 under the control of the power module 140 , And a detailed description thereof will be described later.

The copper foil layer 121b may be exposed so that the first and second light emitting device packages 122 and 123 are disposed by etching after the insulating layer 121c is disposed on the base layer 121a and the copper foil layer 121b .

The insulating layer 121c is disposed on the base layer 121a and the copper foil layer 121b to prevent breakage of the copper foil layer 121b due to short-circuit and moisture infiltration.

The insulating layer 121c may be made of a material having high reflectivity and may reflect light incident on the insulating layer 121c to the outside when the first and second light emitting device packages 122 and 123 emit light.

The insulating layer 121c may be a film type or an ink type, and is not limited in thickness.

The insulating layer 121c may be a PSR film and a PSR ink, and may be disposed on a part of the upper surface of the base layer 121, but is not limited thereto.

7 is a perspective view of the first light emitting device package 122 of the first and second light emitting device packages 122 and 123. In the embodiment, the first and second light emitting device packages 122 and 123 are of the same type However, the first and second light emitting device packages 122 and 123 may be arranged in a top view type, a side view type, and a COB type, But it is not limited thereto.

The first light emitting device package 122 may be a COB type and the second light emitting device package 123 may be a top view type.

7 is a perspective view of a portion of the first light emitting device package 122, which is a top view type.

The first light emitting device package 122 may include a body 20 having a light emitting element 10 and a light emitting element 10 disposed thereon.

The body 20 may include a first partition 22 disposed in a first direction (not shown) and a second partition 24 disposed in a second direction (not shown) that intersects the first direction And the first and second barrier ribs 22 and 24 may be integrally formed with each other, and may be formed by injection molding, etching, or the like, but are not limited thereto.

That is, the first and second barrier ribs 22 and 24 are made of a resin material such as polyphthalamide (PPA), silicon (Si), aluminum (Al), aluminum nitride (AlN), AlO _x , liquid crystal polymer , photo sensitive glass), polyamide 9T (PA9T), new geo syndiotactic polystyrene (SPS), metal materials, sapphire (Al ₂ O _3), beryllium oxide (BeO), ceramic, and a printed circuit board (PCB, printed circuit board ). ≪ / RTI >

The shape of the upper surface of the first and second barrier ribs 22 and 24 may have various shapes such as a triangular shape, a square shape, a polygonal shape, and a circular shape depending on the use and design of the light emitting device 10.

The first and second barrier ribs 22 and 24 form a cavity s in which the light emitting device 10 is disposed and the cavity s may have a cup shape or a concave shape. The first and second barrier ribs 22 and 24 forming the cavity s may be inclined downward.

The plane shape of the cavity s may have various shapes such as a triangular shape, a square shape, a polygonal shape, and a circular shape, but is not limited thereto.

The first and second lead frames 13 and 14 may be formed of a metal material such as titanium (Ti), copper (Au), chrome (Cr), tantalum (Ta), platinum (Pt), tin (Sn), silver (Ag), phosphorus (P) And may include one or more materials or alloys of indium (In), palladium (Pd), cobalt (Co), silicon (Si), germanium (Ge), hafnium (Hf), ruthenium (Ru) .

The first and second lead frames 13 and 14 may be formed to have a single layer or a multilayer structure, but are not limited thereto.

The inner surfaces of the first and second barrier ribs 22 and 24 are inclined at a predetermined inclination angle with respect to any one of the first and second lead frames 13 and 14, The reflection angle of the emitted light can be changed, and thus the directivity angle of the light emitted to the outside can be controlled. The concentration of light emitted to the outside from the light emitting device 10 increases as the directivity angle of light decreases, while the concentration of light emitted from the light emitting device 10 to the outside decreases as the directivity angle of light increases.

The inner surface of the body 20 may have a plurality of inclination angles, but is not limited thereto.

The first and second lead frames 13 and 14 are electrically connected to the light emitting element 10 and are respectively connected to positive and negative poles of an external power source ). ≪ / RTI >

In the embodiment, the light emitting element 10 is disposed on the first lead frame 13, the second lead frame 14 is separated from the first lead frame 13, Bonded with the first lead frame 13 and wire-bonded with the second lead frame 14 by a wire (not shown), so that power can be supplied from the first and second lead frames 13 and 14.

Here, the light emitting element 10 may be bonded to the first lead frame 13 and the second lead frame 14 with different polarities.

Further, the light emitting element 10 can be wire-bonded or die-bonded to the first and second lead frames 13 and 14, and the connection method is not limited.

In the embodiment, the light emitting element 10 is disposed on the first lead frame 13, but the present invention is not limited thereto.

Then, the light emitting element 10 can be adhered to the first lead frame 13 by an adhesive member (not shown).

Here, between the first and second lead frames 13 and 14, an insulating dam 16 for preventing electrical short-circuiting of the first and second lead frames 13 and 14 may be formed.

In an embodiment, the insulation dam 16 may be formed in a semicircular shape at the top, but is not limited thereto.

A cathode mark (17) may be formed on the body (13). The cathode mark 17 distinguishes the polarity of the light emitting element 10, that is, the polarity of the first and second lead frames 13 and 14 so that when the first and second lead frames 13 and 14 are electrically connected, Lt; / RTI >

The light emitting device 10 may be a light emitting diode. The light emitting diode may be, for example, a colored light emitting diode that emits light such as red, green, blue, or white, or a UV (Ultra Violet) light emitting diode that emits ultraviolet light. However, A plurality of light emitting devices 10 may be mounted on the frame 13 and at least one light emitting device 10 may be mounted on the first and second lead frames 13 and 14, 10 and the mounting position of the semiconductor device.

The body 20 may include a resin material 18 filled in the cavity s. That is, the resin material 18 may be formed in a double molding structure or a triple molding structure, but is not limited thereto.

The resin material 18 may be formed in a film shape, and may include at least one of a phosphor, a light dispersing agent, and a light diffusing material, and a translucent material not containing a phosphor and a light diffusing material may be used. Do not limit.

FIG. 8 is a control block diagram of a power supply module for supplying driving power to the light emitting module shown in FIG. 5, and FIG. 9 is a simplified circuit diagram of the power supply module shown in FIG.

Figs. 8 and 9 are explained using the same reference numerals for the components shown and described in Figs. 1 to 7. Fig.

8 and 9, the power supply module 140 is connected to the first and second light emitting device packages (first and second light emitting device packages) A power conversion section 42 for converting the driving power source vd converted by the power conversion section 42 into a driving power source vd driven by the light emitting module section 122, And a control unit 46 for controlling the power supply unit 44. The control unit 46 controls the power supply unit 44 and the power supply unit 44,

Here, the power converter 42 includes a rectifying circuit 42a for outputting the driving power vd rectified by the dc power source if the power source vac is the ac power source, and a rectifying circuit 42b for applying ESD (Electrostatic Discharge) Prevention circuit 42b that includes an ESD protection element that prevents the ESD protection device from being supplied.

The power supply unit 44 may include first and second switches 44a and 44b connected in parallel to the power conversion unit 42. [

That is, the first switch 44a is connected to at least one of the first wiring 143 and the first and second wiring patterns 31 and 32 so that the first driving power source vd1 is connected to the first light emitting device package 122, Can be supplied or cut off.

The second switch 44b is connected to at least one of the first wiring 143 and the third and fourth wiring patterns 33 and 34 so that the second driving power source vd2 is connected to the second light emitting device package 123, Can be supplied or cut off.

Here, the first and second driving power sources vd1 and vd2 may be the driving power source vd and may be a power source having a different voltage level. In the embodiment, the first and second driving power sources vd1 and vd2 are the same as the driving power source vd. 2 drive power supplies (vd1, vd2).

The first and second switches 44a and 44b may be controlled by the control unit 46, or may be interlocked with switches connected to the outside, but are not limited thereto.

Although the first and second switches 44a and 44b are shown as FETs, the first and second switches 44a and 44b may be devices capable of performing a switching operation such as a relay and the like, but are not limited thereto.

In the embodiment, the first and second switches 44a and 44b are described as being operated by the control unit 46. [

That is, the control unit 46 switches the first and second switches 44a and 44b according to a preset value to switch the first and second driving power sources vd1 and vd2 to the first and second light emitting device packages 122 and 122, 123 to be supplied or blocked.

In this case, the predetermined value is a value obtained by dividing the first color light emitted from the first light emitting device package 122 and the second color light emitted from the second light emitting device package 123 by operating the first and second light emitting device packages 122 and 123 The first and second light emitting device packages 122 and 123 may emit light of a third color mixed with the light of the second color or may be time values such that only one of the first and second colors may be emitted by the first and second light emitting device packages 122 and 123, It is not limited to this.

The control unit 46 outputs first and second control signals sc1 and sc2 to the first and second switches 44a and 44b for individually switching the first and second switches 44a and 44b according to the preset values. .

At this time, the first and second light emitting device packages 122 and 123 may emit the first and second colors of light according to the switching operation of the first and second switches 44a and 44b.

Therefore, the illumination device 100 according to the embodiment can emit at least one of the first, second color light, and the third light mixed with the first and second colors, so that the user can experience various colors for the user And can experience light of different colors depending on the user's taste or time of day.

The light emitting module 120 and the power module 140 shown in FIGS. 4 to 9 are one embodiment and the first to fourth wiring patterns 31 to 34 shown in the light emitting module 120 and the first to fourth Each of the electrode patterns 35 to 38 can be represented by two wiring patterns and electrode patterns. In the circuit diagram shown in Fig. 9, the first and second switches 44a and 44b may not be applied, but are not limited thereto.

FIG. 10 is a perspective view showing a lighting device according to a second embodiment, FIG. 11 is an exploded perspective view showing the lighting device shown in FIG. 10, and FIG. 12 is a sectional view showing the lighting device shown in FIG.

10 to 12 are applied to the same reference numerals for the duplicated configurations in FIGS. 1 to 3, and a brief description thereof will be omitted.

10 to 12, the lighting device 200 includes a light transmitting case 110, a light emitting module 120, a reflection plate 130, a light diffusion member 170, a power module 140, a socket 150, And may include an outer case 160.

Description of the light transmitting case 110, the light emitting module 120, the reflector 130, the power module 140, the socket 150 and the outer case 160 will be omitted from FIGS. 1 to 3 do.

That is, the light diffusion member 170 may be disposed between the reflection plate 130 and the light emitting module 120, and may be a cylinder, a prism, a cylinder, or a square cylinder.

At this time, the light diffusion member 170 is made of a light-transmitting material and can be colored. A film (not shown) containing at least one of a phosphor, a light dispersing agent and a light diffusing material may be disposed on the side surface of the light diffusing member 170.

The light diffusion member 170 may have a circular column shape and an insertion hole 172 penetrating the central region.

That is, the insertion hole 172 is connected to the power module 140 through the hole 132 formed in the reflector 130, and the other end is connected to the light emitting module 120 Can be connected.

In other words, the light diffusion member 170 prevents the first connection member 143 from being exposed to the outside and the light generated from the first and second light emitting device packages 122 and 123 of the light emitting module 120 The light efficiency can be improved.

At this time, the insertion hole 172 may be formed wider than the maximum width of the first connection member 143, but is not limited thereto.

Although the first connecting member 143 is shown as being inserted into the insertion hole 172 formed in the light diffusion member 170 in the embodiment, it may be disposed on the side surface of the light diffusion member 170.

For example, when the first connecting member 143 is disposed on the side surface of the light diffusing member 170, the light diffusing member 170 is formed such that a groove (not shown) in which the first connecting member 143 is disposed is formed And is not limited to this.

The first light emitting device package 122 is disposed at the center of the light emitting module 120 so that the light diffusing member 170 is adjacent to one side of the first light emitting device package 122 .

The light diffusion member 170 may be formed of at least one.

If there are two light diffusion members 170, the first connection member 143 may be disposed on any one of the two light diffusion members 170, or the first connection member 143 may be provided on each of the two light diffusion members 170. [ The first and second connection lines included in the first connection line 143 may be disposed one by one, but are not limited thereto.

In the embodiment, the light diffusion member 170 is formed to have the same upper width and lower width, but the upper width and the lower width may be different from each other, but are not limited thereto.

FIG. 13 is a perspective view showing the illumination device according to the third embodiment, FIG. 14 is an exploded perspective view showing the illumination device shown in FIG. 13, and FIG. 14 is a sectional view showing the illumination device shown in FIG.

13 to 15, the lighting device 300 includes a light transmitting case 210, a light emitting module 220, a reflector 230, a power module 240, a socket 250 and an outer case 260 can do.

The light transmissive case 210 may reflect light emitted from the light emitting module 220 to the front or rear surface of the illumination device 300 through reflection and refraction.

The light-transmissive case 210 may be formed in a bulb shape, a semicircular shape, and a polygonal shape, and may have other shapes, but is not limited thereto.

The outer case 260 can determine the outline of the lighting device 300 by enclosing the power module 240 and the socket 250.

Although the outer case 260 is shown as forming the outer appearance of the lighting device 300 in the embodiment, the outer case 260 may not be formed.

Hereinafter, components of the lighting apparatus 300 according to the embodiment will be described in detail.

The transparent case 210 has an opening G1 to be coupled with the socket 250. At least one of the inner and outer surfaces of the transparent case 210 is coated with at least one of a phosphor, a light dispersing agent, and a light diffusing material, , A film (not shown) including at least one of a light dispersing agent and a light diffusing material may be disposed, but is not limited thereto.

Since the transparent case 210 is made of a glass material or may be weak in weight or external impact, it is preferable to use a polymethylmethacrylate (PMMA) or a transparent acrylic resin having good light resistance, heat resistance, And may be a light guide plate made of a flat type or a wedge type.

Further, a reflective member (not shown) including at least one of silver, gold, copper, and nickel may be disposed on at least one of the inner and outer surfaces of the light transmitting case 210, and a light transmitting pattern may be formed. Do not limit.

The above-mentioned transparent acrylic resin has a high strength, is less deformed, is light, and has high transmittance of visible light.

In addition, the light transmitting case 210 may have a seating portion G2 on which the light emitting module 220 is disposed.

The seating part G2 is shown as being overlapped with the opening part G1 and the vertical axis A in the embodiment but the seating part G2 includes the transparent case 210 which is not overlapped with the opening G1 and the vertical axis A, But it is not limited thereto.

Here, the seating part G2 has a shape that is opened to overlap with the opening part G1 on the vertical axis A, and the light emitting module 220 can be disposed on the side surface of the seating part G2.

At this time, a step may be formed on the side of the seating part G2, that is, the side of the light-transmissive case 210, and the light emitting module 220 may contact the stepped part.

A groove (not shown) may be formed in the stepped portion, and a hole (not shown) corresponding to the groove may be formed in the light emitting module 220.

At this time, a first connecting member 243 to be described later is disposed in the hole and the groove, and can be coupled by a screw n1.

The first and second pattern grooves pa1 and pa2 may be formed on at least one of the outer surface and the inner surface of the transparent case 210. In this embodiment, The grooves pa1 and pa2 are formed, but the present invention is not limited thereto.

At this time, a first connecting member 243 to be described later may be disposed in any one of the first and second pattern grooves pa1 and pa2, and the first connecting member 243 ), But is not limited thereto.

In the embodiment, the first connecting member 243 is described as being disposed in the first pattern groove pa1.

The first pattern groove pa1 may be filled with at least one of ink, film, insulating material and metal including a reflective material after the first connecting member 243 is disposed, but is not limited thereto.

The second pattern groove pa2 may be filled with at least one of ink, film, insulating material and metal including the reflective material.

At this time, at least one of the first and second pattern grooves pa1 and pa2 may be represented by at least one of a pattern, a number, a symbol, and a character different from the first pattern groove pa1.

In the embodiment, although the first and second pattern grooves pa1 and pa2 are shown as two, they may be one or two or more, but are not limited thereto.

The light emitting module 220 may include a first substrate 221 and at least one light emitting device package 224 disposed on the first substrate 221.

Although the light emitting device package 224 is shown as including the first and second light emitting device packages 222 and 223 that emit light of different colors, the first and second light emitting device packages 222 and 223, Can emit light of the same color to each other, and the number and type are not limited.

In the embodiment, the first substrate 221 is shown as having a disk shape, but is not limited thereto.

The first substrate 221 may be a printed circuit board, a flexible printed circuit board, or a metal core PCB (MCPCB). In the case of the printed circuit board, a printed circuit board A printed circuit board (PCB), a printed circuit board (PCB), a printed circuit board (PCB) having a plurality of layers, and the like. In the embodiment, the PCB is a printed circuit board.

In addition, the first substrate 221 may be formed of a material that efficiently reflects light, or may be formed of a color whose surface is efficiently reflected, for example, white, silver, or the like.

The first light emitting device package 222 is disposed at the center of the first substrate 221 and the second light emitting device package 223 is disposed radially around the first light emitting device package 222, Do not limit.

Here, the first and second light emitting device packages 222 and 223 may include a light emitting device (not shown) including a light emitting diode (LED), and the first and second light emitting device packages 222 and 223 may include red But is not limited to, emit light having at least one color.

However, each of the first and second light emitting device packages 222 and 223 emits different first and second colors of light so that the color emitted by the lighting device 300 can be varied by the user .

The first substrate 221 has a first surface (not shown) in which the first and second light emitting device packages 222 and 223 are disposed and a part of which contacts a stepped portion of the seating portion G2, And a second surface (not shown) which is opposite to the second surface and is exposed to the outer surface of the transparent case 210.

In addition, the cover 220 may be covered with the seating part G2 and a cover (not shown) on the second surface, and the cover may use a material that easily dissipates heat generated from the light emitting module 220 to the outside, The module 220 can be protected.

The power module 240 may include a second substrate 241 and a plurality of components 242 disposed on the second substrate 241.

Here, the plurality of components 242 include, for example, a power conversion unit (not shown) for converting an external power source into driving power consumed by the first and second light emitting device packages 222 and 223, A power supply unit (not shown) for supplying the driving power converted from the power supply unit to at least one of the first and second light emitting device packages 222 and 223, a light emitting module 220, and a controller And an ESD protection element for preventing ESD (Electrostatic Discharge) from being supplied to the light emitting module 220, but the present invention is not limited thereto.

The socket 250 may include an insertion portion 251 where the power module 240 is disposed and a connection terminal 252 that is electrically connected to the power source.

The socket 250 may be formed of a material having high insulation and durability and may be formed of, for example, a resin material, but is not limited thereto.

The insertion portion 251 may have a hollow cylindrical shape.

The connection terminal 252 may be connected to the power source, for example, in a socket manner.

That is, the connection terminal 252 may include a first electrode 253 on a side surface portion, a second electrode 254 on a vertex portion, and an insulation member 155 between the first and second electrodes 253 and 254, The first and second electrodes 253 and 254 may be powered by the power source.

However, the shape of the connection terminal 252 may be variously modified according to the design of the illumination device 300, and thus the shape is not limited thereto.

At this time, the second substrate 241 may be arranged in a direction perpendicular to one surface of the first substrate 231 to smooth the airflow in the socket 250, but is not limited thereto.

On the other hand, the second substrate 241 may be disposed in the socket 250 in a direction perpendicular to the longitudinal direction of the socket 250, but is not limited thereto.

The power module 240 may be electrically connected to the connection terminal 252 of the light emitting module 220 and the socket 250 by the first connection member 243 and the second connection member 244, respectively.

In the embodiment, although the first and second connecting members 243 and 244 are shown as being connected by a line-shaped connecting line, they may be connected by a connector, but are not limited thereto.

More specifically, the second connection member 244 is electrically connected to the first and second electrodes 253 and 254 of the connection terminal 252, and can receive the power.

At least one of the inside and the top of the socket 250 may be provided with a reflection plate 230

Although the reflector 230 is shown as being disposed to face the light emitting module 220 disposed on the seating portion G2, the reflector 230 may be disposed on the side of the light transmitting case 210, but is not limited thereto.

That is, although the reflection plate 230 is shown as being formed as a flat surface, it may be formed to be inclined from the center to the side, or inclined to the other side from one side, but not limited thereto.

The reflection plate 230 may include at least one of silver, aluminum, copper, and gold. The cross-sectional shape of the reflection plate 230 may be a horn shape, a polygonal shape, or a semicircular shape.

The first connection member 243 may include, but is not limited to, a first connection line (not shown) to which positive power is applied and a second connection line (not shown) to which a negative power is applied .

The first connecting member 243 may be soldered to the light emitting module 220 and the power module 240 such as a connector or may be formed at both ends of a ring type so that the light emitting module 220 and power module 240 or both ends may be formed in a pin type so as to be inserted into a hole (not shown) formed in the light emitting module 220 and the power module 240, It is not limited to this.

The first connecting member 243 is connected to the light emitting module 220 on one side and is disposed in the first pattern groove pa1 of the light transmitting case 210 to be inserted into the socket 250, And the other side can be connected to the power module 240 through the hole pa3.

Although the first connecting member 243 is shown inserted into the insertion hole pa3 and connected to the power module 240 in the embodiment, the present invention is not limited thereto.

The outer case 260 may be coupled to the socket 250 to accommodate the light emitting module 220, the power module 240, and the like.

The outer case 260 may include a ring structure 262, a cone shaped body portion 261 that is open inside and a connection portion 263 that physically connects the ring structure 262 and the body portion 261 .

Although the body portion 261 is shown as having a cone shape, it is not limited thereto.

The connection portion 263 includes a plurality of ribs, and an opening G3 may be formed between the plurality of ribs, but is not limited thereto.

Also, the outer case 260 may be formed of a material having excellent insulation and durability, for example, a resin material.

Accordingly, the illumination device according to the embodiment can emit at least one of the first, second color light, and the third light mixed with the first and second colors, thereby allowing the user to experience various colors And can experience light of different colors depending on the user's taste or time of day.

Further, in the illumination device according to the embodiment, the light emitting module is disposed on the upper portion of the light-transmissive case, so that the heat is easily emitted.

The features, structures, effects and the like described in the embodiments are included in at least one embodiment of the present invention and are not necessarily limited to only one embodiment. Furthermore, the features, structures, effects and the like illustrated in the embodiments can be combined and modified by other persons skilled in the art to which the embodiments belong. Therefore, it should be understood that the present invention is not limited to these combinations and modifications.

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 taken by way of illustration, It will be appreciated that various modifications and applications are possible without departing from the scope of the present invention. For example, each component specifically shown in the embodiments can be modified and implemented. It is to be understood that all changes and modifications that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims (25)

A light emitting module including a light emitting device package;
A socket in which a power module for generating a driving power consumed by the light emitting device package is disposed;
A transparent case having an opening to be coupled with the socket and a seating part in which the light emitting module is disposed; And
And a light diffusion member disposed between the light emitting module and the power module. The method according to claim 1,
And a reflector disposed on at least one of the inside and the top of the socket,
The reflector includes:
And is formed to be inclined from the center to the lateral direction,
And is inclined from one side to the other side,
Silver, at least one of aluminum, copper, and gold, or an alloy containing the same,
The cross-
Shaped, polygonal, or semicircular shape. delete delete delete delete delete The light-emitting device according to claim 1,
A cylinder, a prism, a cylinder, a square cylinder, and a translucent material,
On the side surface of the light diffusing member,
A film comprising at least one of a phosphor, a light dispersing agent and a light diffusing material is disposed. delete delete The method according to claim 1,
And a connection member for supplying the driving power to the light emitting module,
The connecting member
And a light emitting module connected to the power module and the light emitting module through a reflector disposed in at least one of the socket and the top,
A light diffusing member disposed between the light emitting module and the power module,
Or an outer surface of the light diffusion member,
And a light emitting module connected to the power module and the light emitting module through an insertion hole formed in a side surface of the socket,
Wherein at least one side of both sides of the connecting member is a ring type or a pin type which is directly connected. delete delete delete The light-transmissive case according to claim 1,
First and second pattern grooves spaced apart from each other are formed on at least one of an outer surface and an inner surface,
Wherein at least one of the first and second pattern grooves has,
A connecting member for supplying the driving power to the light emitting module is disposed,
Film, and metal containing a reflective material,
The lighting device being formed in at least one of a symbol, a number, a character, and a pattern. delete delete delete delete The seat according to claim 1,
A portion of the opening is vertically overlapped with the opening, and is formed on the inner surface of the transparent case,
At least one of a protrusion and a groove coupled with the light emitting module is formed,
The portion where the light emitting module is disposed may form a flat surface,
Or the portion where the light emitting module is disposed is a curved surface,
The light-emitting module is inserted and arranged in a part of the transparent case,
The opening side surface of the seat portion is formed with a step,
On the stepped surface of the opening side surface,
Wherein one surface of the light emitting module is contacted,
And a cover covering the seat portion. delete delete delete delete delete

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