KR20110000859A

KR20110000859A - Lighting device

Info

Publication number: KR20110000859A
Application number: KR1020090058161A
Authority: KR
Inventors: 공경일; 김화영
Original assignee: 엘지이노텍 주식회사
Priority date: 2009-06-29
Filing date: 2009-06-29
Publication date: 2011-01-06

Abstract

PURPOSE: A light illuminating apparatus is provided to effectively emit heat generated from light source by forming light emitting grooves on a first inclined surface and a second inclined surface. CONSTITUTION: A first socket part(41) and a second socket part(42) are formed in a housing. A reflector is installed in the housing. A light source part includes a first connection terminal(36) and a second connection terminal(37) which are combined with the first socket part and the second socket part. The light source part includes light emitting grooves(33) which are formed on the first inclined surface and the second inclined surface. A controlling part receives a driving signal and controls light source part.

Description

Lighting Device

Embodiments relate to a lighting device.

Light emitting diodes (LEDs) are a type of semiconductor device that converts electrical energy into light. Light emitting diodes have the advantages of low power consumption, semi-permanent life, fast response speed, safety and environmental friendliness compared to conventional light sources such as fluorescent and incandescent lamps. Accordingly, many researches are being conducted to replace existing light sources with light emitting diodes, and the use of light emitting diodes is increasing as a light source for lighting devices such as various lamps, liquid crystal displays, electronic displays, and street lamps that are used indoors and outdoors.

The lighting device according to the embodiment is free of glare and provides soft light.

Embodiments provide an illumination device that effectively emits heat generated by a light source.

The embodiment provides a lighting device that is easy to replace the light source.

The embodiment provides a lighting device including a control unit for receiving a driving signal and controlling a light source.

In one embodiment, a lighting apparatus includes: a housing in which a first socket part and a second socket part are formed; A reflector installed in the housing; And a light source unit including a first connection terminal and a second connection terminal coupled to the first socket unit and the second socket unit, and having a plurality of light emitting diodes emitting light toward the reflector. The shape of the connection terminal is different from that of the second connection terminal, and the shape of the first socket portion is different from the shape of the second socket portion.

The lighting device according to the embodiment is free of glare and may provide soft light.

Embodiments can provide a lighting device that effectively emits heat generated by the light source.

Embodiments can provide a lighting device that is easy to replace the light source.

The embodiment can provide a lighting device including a control unit for receiving a driving signal to control a light source.

In describing embodiments, where each layer, region or structure is described as being formed "on" or "under" of a substrate, each layer, region or structure, on "and" under "include both" directly "and" indirectly ". In addition, the criteria for the top or bottom of each layer will be described with reference to the drawings.

Hereinafter, lighting apparatuses according to embodiments will be described with reference to the accompanying drawings.

1 is a cross-sectional view of the lighting apparatus 100 according to the first embodiment, and FIG. 2 is a perspective view of the lighting apparatus 100 according to the first embodiment. 3 is a cross-sectional view of the light source unit 30 of the lighting apparatus 100 according to the first embodiment, and FIGS. 4 and 5 illustrate the separation and coupling states of the light source unit 30 and the socket portions 41 and 42, respectively. It is a figure.

1 and 2, the lighting device 100 includes a housing 10, a reflector 20, and a light source unit 30.

The housing 10 may be in the form of a box to accommodate the reflector 20, but is not limited thereto. The housing 10 has an opening 11 through which the reflecting surface 21 of the reflector 20 is exposed and the light is emitted.

2, 4, and 5, a first socket part 41 for supporting and fixing the light source unit 30 and supplying power to the light source unit 30 on an inner side surface of the housing 10; The second socket part 42 may be formed. That is, the first connection terminal 36 and the second connection terminal 37 formed at both ends of the light source unit 30 are coupled to the first socket part 41 and the second socket part 42, so that the light source unit 30 may be supported and fixed, and power may be supplied to the light source unit 30 through the first connection terminal 36 and the second connection terminal 37. This will be described later in detail.

The reflector 20 may be installed in the housing 10. The reflector 20 may have a parabola reflecting surface 21 having two parabolas. That is, the reflective surface 21 includes two parabolic reflective surfaces 21a and 21b. However, the shape of the reflecting surface 21 of the reflector 20 may be variously modified according to the design of the lighting device 100.

The two parabolic reflection surfaces 21a and 21b meet each other to form a boundary portion 22, and the boundary portion 22 is formed along the longitudinal direction of the lighting device 100, and the light source unit 30 and Overlap in the vertical direction.

The material and color of the reflector 20 may be modified according to the illumination to be implemented by the lighting device 100. For example, the reflector 20 may be formed of a white material having high reflection efficiency, or may be coated with silver (Ag) or aluminum (Al) on the surface.

1 to 5, the light source unit 30 may be formed along the longitudinal direction of the reflector 20 at the center of the opening 11. For example, the light source unit 30 may be formed along the boundary portion 22 of the reflector 20 in the opening 11 of the housing 10.

The light source part 30 is supported and fixed by the first socket part 41 and the second socket part 42 formed on the inner side surface of the housing 10.

The light source unit 30 extends in the longitudinal direction of the reflector 20, and includes a body 32 including a first inclined surface 38 and a second inclined surface 39, the first inclined surface 38 and a second inclined surface. The light emitting groove 33 formed on the inclined surface 39, the light emitting diode 31 mounted on the light emitting groove 33, the first connecting terminal 36 and the second connecting terminal formed at both ends of the body 32. (37).

The body 32 is preferably formed of a material that effectively releases heat, for example, aluminum (Al), tin (Sn), nickel (Ni), silver (Ag), copper (Cu), titanium ( It may be formed of a metal such as Ti), molybdenum (Mo), tungsten (W), gold (Au), platinum (Pt). Alternatively, the body 32 may be formed of various resin materials, but is not limited thereto.

In addition, the body 32 may be formed of a white material having high reflection efficiency, or the surface of the body 32 may be coated with silver (Ag) or aluminum (Al).

The body 32 may have a polygonal cross section and extend along the longitudinal direction of the reflector 20. 1 to 5, the body 32 is shown to have a cross section of a fan shape, but is not limited thereto.

1 and 3, both side surfaces of the body 32 may have the first inclined surface 38 and the second inclined surface 39 to face the reflecting surface 21 of the reflector 20. .

That is, both side surfaces of the body 32 have the first inclined surface 38 and the second inclined surface 39, and the first inclined surface 38 and the second inclined surface 39 are formed of the reflective surface 21. Two parabolas 21a and 21b can be seen respectively.

4 and 5, the light emitting grooves are formed on both side surfaces of the body 32, that is, the first inclined surface 38 and the second inclined surface 39 so as to extend along the longitudinal direction of the reflector 20. 33 can be formed.

The depth and width of the light emitting groove 33 may be variously adjusted according to the light distribution of the light emitting diode 31 mounted in the light emitting groove 33. At this time, the depth and width of the light emitting groove 33 is not emitted to the outside through the opening 11 directly to the light emitted from the light emitting diode 31 mounted in the light emitting groove 33, the reflector 21 After being reflected by) can be adjusted to be emitted to the outside through the opening (11).

The light emitting diode 31 is mounted in the light emitting groove 33. A plurality of the light emitting diodes 31 may be mounted in the array in the light emitting groove 33, and the arrangement and number of the light emitting diodes 31 are not limited.

The light emitting diode 31 may selectively use a light emitting diode emitting red, blue, green, or white light. In addition, a light emitting diode emitting light of various colors may be used.

The light emitted from the light emitting diode 31 emits light toward the reflecting surface 21 of the reflector 20, that is, the two parabolic reflecting surfaces 21a and 21b. Thus, the light emitted from the light emitting diodes 31 may not be directly provided to the user, but may be reflected by the reflector 20 and provided to the user. Accordingly, the user can be provided with a soft light without glare.

A substrate (not shown) is disposed in the light emitting groove 33, and the light emitting diode 31 is mounted on the substrate (not shown), so that the light emitting diode 31 may be electrically connected. Alternatively, a plurality of electrodes (not shown) may be disposed in the light emitting groove 33, and the light emitting diodes 31 may be electrically connected by the plurality of electrodes (not shown).

A lens (not shown) is disposed in the light emitting groove 33 to appropriately adjust a light distribution of light emitted from the light emitting diode 31. Alternatively, the light emitting groove 33 may be filled with a resin material (not shown), and the light distribution of light may be adjusted by the resin material (not shown). A phosphor may be added to the lens (not shown) or the resin material (not shown).

Unevenness 34 may be formed on a bottom surface of the body 32 of the light source unit 30, and the unevenness 34 may effectively release heat by increasing the surface area of the light source unit 30. The unevenness 34 may be formed to extend in the longitudinal direction of the light source unit 30.

4 and 5, the first connection terminal 36 and the second connection terminal 37 may be formed at both ends of the body 32 of the light source unit 30. The first connection terminal 36 and the second connection terminal 37 may be formed to correspond to the first socket portion 41 and the second socket portion 42 respectively formed on the inner surface of the housing 10. have.

The first connection terminal 36 and the second connection terminal 37 are coupled to the first socket part 41 and the second socket part 42, and thus the first socket part 41 and the second socket. The unit 42 supports and fixes the light source unit 30.

The first connection terminal 36 and the second connection terminal 37 receive power from the first socket part 41 and the second socket part 42, respectively, so that the light emitting diodes 31 emit light. Do it.

The first socket portion 41 is coupled to the first connection terminal 36 to form a first coupling portion, and the second socket portion 42 is coupled to the second connection terminal 37 to a second coupling portion. Form wealth.

At least one of the first coupling part and the second coupling part may include a control part which receives a driving signal to control and drive the light source part 30.

The controller may allow the light emitting diodes 31 to emit light of a desired color to selectively emit light, or control the current flowing through the light source unit 30 to adjust the brightness or color of the light emitting diodes 31. The plurality of light emitting diodes 31 mounted on the 30 may be controlled to provide various lights.

The light source part 30 is used after being used in combination with the first socket part 41 and the second socket part 42 by the first connection terminal 36 and the second connection terminal 37, and thus has a lifespan. Or, when a failure occurs, the first connection terminal 36 and the second connection terminal 37 can be easily replaced by separating from the first socket portion 41 and the second socket portion 42.

6 and 7 illustrate the coupling principle of the first and second connection terminals 36 and 37 and the first and second socket portions 41 and 42.

4 to 7, the shape of the first connection terminal 36 and the shape of the second connection terminal 37 may be different, and the shape of the first socket portion 41 and the second socket portion The form of (42) may also be different. Accordingly, when the user combines the light source unit 30 with the first socket portion 41 and the second socket portion 42, the user can accurately combine the light source unit 30 with no confusion.

For example, the first connection terminal 36 may include a block portion 36a and a protrusion portion 36b protruding downward from the block portion 36a, and the block portion 36a and the protrusion portion ( 36b) may be integrally formed.

The first socket part 41 may be formed in a form corresponding to the first connection terminal 36, and the protrusion 36b may be inserted into an insertion part formed in the first socket part 41. .

In this case, referring to FIG. 6A, a penetration hole 41a may be formed in the insertion portion, and the protrusion 36b may be inserted to penetrate the through hole 41a. Alternatively, referring to FIG. 6B, an insertion groove 41b may be formed in the insertion portion, and the protrusion 36 may be formed to be inserted into the insertion groove 41b.

Referring to FIG. 7, the second connection terminal 37 may include only the block portion 37a. The second socket part 42 may be formed in a form corresponding to the second connection terminal 37, so that the second connection terminal 37 may be inserted into and coupled to the second socket part 42. have.

The first and second connection terminals 36 and 37 and the first and second socket portions 41 and 42 are not limited to those shown in the drawings and may have various forms.

For example, the cross sections of the block portions 36a and 37a of the first and second connection terminals 36 and 37 may have a circular, elliptical, or polygonal shape, such as a triangle or a pentagon. In addition, the protrusion 36b may have a shape of a rectangle, a triangle, a circle, an oval, or the like. It does not limit to this.

In addition, the first and second connection terminals 36 and 37 may be formed in the same shape as each other, and the first and second connection terminals 36 and 37 may be formed with or without protrusions.

In addition, each of the first and second connection terminals 36 and 37 may be formed to include at least two pins, and the first and second socket parts 41 and 42 may include the at least two pins ( pin) is formed to have an insertion hole into which the first and second connection terminals 36 and 37 and the first and second socket portions 41 and 42 may be connected, but are not limited thereto. .

Second Embodiment

Hereinafter, the lighting apparatus according to the second embodiment will be described in detail with reference to components. In the description of the second embodiment, the same parts as those of the first embodiment will be referred to the first embodiment, and redundant description thereof will be omitted.

8 is a perspective view of a light source unit 130 of the lighting apparatus according to the second embodiment.

Referring to FIG. 8, the light source unit 130 of the lighting apparatus according to the second embodiment extends along the length direction of the reflector and has a body 132 having a first inclined surface and a second inclined surface, the first inclined surface and the second inclined surface. The light emitting groove 133 formed on the inclined surface, the light emitting diode 131 mounted on the light emitting groove 133, the first connection terminal 136 and the second connection terminal 137 formed at both ends of the body 132. It includes.

The light emitting groove 133 may be partially formed only at a position where the light emitting diodes 131 on both sides of the body 132 are mounted. That is, a plurality of light emitting grooves 133 may be spaced apart from the body 132. At this time, the upper surface of the light emitting groove 133 may have a circular shape, as shown in the view when viewed from above, may have a variety of shapes such as oval, polygonal.

A plurality of light emitting diodes 131 may be mounted in the array in the light emitting groove 133.

Third Embodiment

Hereinafter, the lighting apparatus according to the third embodiment will be described in detail with reference to components. In the description of the third embodiment, the same parts as those of the first embodiment are referred to the first embodiment, and redundant description thereof will be omitted.

9 is a perspective view of a lighting apparatus 200 according to a third embodiment.

Referring to FIG. 9, the lighting device 200 includes a light source unit 230, a reflector 220, and a support unit 210.

The support part 210 may have a bar shape, support the reflector 220 and the light source part 230, and transmit power to the light source part 230. The support unit 210 extends from an external support member on the reflector 220, such as a ceiling, and receives power from an external power source installed in the external support member, for example, a power supply unit (PSU). .

In addition, the support 210 is shown in two, but may be formed of one or a plurality, but is not limited thereto.

One end of the support part 210 is connected to an external power source, and the other end is connected to an upper surface of the light source part 230 through the reflector 220. For example, the other end of the support part 210 may be bonded to an upper surface of the light source part 230 by an adhesive or the like, or may be fastened by a screw or the like.

A wire may be formed in the support part 210 to allow current to flow, and the support part 210 may transmit power to the light source part 230.

A connection terminal (not shown) may be formed on the upper surface of the light source unit 230 to be connected to the support unit 210. The light source unit 230 may receive power from the support unit 210 through the connection terminal (not shown).

The reflector 220 may be penetrated by the support 210, and may be supported and fixed by the support 210. For example, the support part 210 may be firmly coupled to the support part 210 by an adhesive or the like while penetrating the reflector 220.

Alternatively, the reflector 220 may be connected to and supported by a separate support member, but is not limited thereto.

Hereinafter, the lighting apparatus according to the fourth embodiment will be described in detail with reference to components. In the description of the fourth embodiment, the same parts as those of the third and first embodiments are referred to the third and first embodiments, and redundant description thereof will be omitted.

10 is a perspective view of a lighting apparatus 200A according to a fourth embodiment.

Referring to FIG. 10, the lighting apparatus 200A includes a light source unit 230, a reflector 220, and a support unit 210.

The reflector 220 may be in the form of a housing having an opening. The socket 241 may transfer power to the light source 230 and support the light source 230 on the inner surface 222 of the reflector 220. ) May be formed.

The coupling relationship between the socket portion 241 and the connection terminal of the light source unit 230 and the operation thereof are the same as those described in the first embodiment, and thus a detailed description thereof will be omitted.

The support part 210 may have a bar shape, and support the reflector 220 and the light source part 230. The support unit 210 may extend from an external support member on the reflector 220, such as a ceiling, and may receive power from an external power source installed in the external support member, for example, a power supply unit (PSU). Received may be delivered to the socket portion 241 of the reflector 220.

One end of the support part 210 may be connected to the external power source, and the other end may be connected to an upper surface of the light source part 230 through the reflector 220. For example, the other end of the support part 210 may be bonded to an upper surface of the light source part 230 by an adhesive or the like, or may be fastened by a screw or the like.

A wire may be formed in the support part 210 to allow a current to flow, and the support part 210 may transmit power to the socket part 241 of the reflector 220.

The reflector 220 may be penetrated by the support 210, and may be supported and fixed by the support 210. For example, the support part 210 may be firmly coupled to the reflector 220 by an adhesive or the like while penetrating the reflector 220.

Hereinafter, the lighting apparatus according to the fifth embodiment will be described in detail with reference to components. In the description of the fifth embodiment, the same parts as those of the first embodiment are referred to the first embodiment, and redundant description thereof will be omitted.

11 is a perspective view of a lighting apparatus 300 according to a fifth embodiment.

Referring to FIG. 11, the lighting device 300 includes a light source 330, a reflector 320, and a support 310.

The support 310 may have a bar shape, is coupled to the reflector 320 and the light source 330 to support them, and transfers power to the light source 330. The support part 310 extends from an external support member under the light source 330, such as a bottom surface, to supply power from an external power source installed in the external support member, for example, a power supply unit (PSU). I receive it.

In addition, the support 310 is shown in two, but may be formed of one or a plurality, but is not limited thereto.

One end of the support part 310 is connected to an external power source, and the other end thereof is connected to a part of the reflective surface of the reflector 320. In this case, the other end of the support part 310 may be bonded to the reflector 320 by an adhesive or the like, or may be fastened and connected by a screw. The support part 310 may penetrate the light source 330 to allow the reflector 320 to be connected. ) Can be connected.

The support part 310 may penetrate the light source part 330 and be firmly coupled to and connected to the light source part 330. Can be supplied.

Sixth Example

Hereinafter, the lighting device according to the sixth embodiment will be described in detail with reference to components. In describing the sixth embodiment, the same parts as those of the fifth embodiment and the first embodiment will be referred to the fifth embodiment and the first embodiment, and redundant descriptions thereof will be omitted.

12 is a perspective view of a lighting apparatus 300A according to the sixth embodiment.

Referring to FIG. 12, the lighting device 300A includes a light source 330, a reflector 320, and a support.

The support part may include a first support part 310 and a second support part 315.

The first support part 310 includes a coupling part 312 coupled to a lower surface of the light source part, and a rod part 311 extending from an external support member under the light source part to provide power to the light source part.

The second support part 315 extends from an upper surface of the light source part to support the reflector.

13 is a diagram illustrating a coupling relationship between the light source unit 330 and the first support unit 310.

12 and 13, the rod part 311 of the first support part 310 has a bar shape, and the coupling part 312 has irregularities on the bottom surface of the body of the light source part 330. It may have a shape corresponding to and may be firmly coupled to the light source unit 330, but is not limited thereto.

The coupling part 312 of the first support part 310 may transfer power to the light source part 330.

The rod portion 311 of the first support portion 310 extends from an external support member under the light source unit 330, such as a bottom surface, and is provided with an external power source installed in the external support member, for example, a power supply unit (PSU). The power supply unit may receive power and transmit the power to the light source unit 330. In this case, power may be transmitted to the light source unit 330 by a wire formed to allow a current to flow in the first support unit 310.

The second support part 315 may extend from an upper surface of the light source part 330 to support and fix the reflector 320.

In addition, although the support is shown in two, it may be formed in one or a plurality, but is not limited thereto.

Seventh Example

Hereinafter, the lighting apparatus according to the seventh embodiment will be described in detail with reference to components. In describing the seventh embodiment, the same parts as those of the fifth embodiment and the first embodiment are referred to the fifth embodiment and the first embodiment, and redundant description thereof will be omitted.

14 is a perspective view of a lighting apparatus 300B according to the seventh embodiment.

Referring to FIG. 14, the lighting device 300B includes a light source 330, a reflector 320, and a support.

The reflector 320 may have a shape of a housing having an opening, and a socket part 341 may transfer power to the light source 330 and support the light source 330 on an inner surface 322 of the reflector 320. ) May be formed.

The coupling relationship between the socket portion 341 and the connection terminal of the light source unit 330 and the operation thereof are the same as those described in the first embodiment, and thus a detailed description thereof will be omitted.

13 and 14, the first support part 310 has a shape corresponding to the unevenness of the rod part 311 having a bar shape and the lower surface of the light source part 330 and the light source part 330. It may include a coupling portion 312 to be coupled.

The coupling part 312 of the first support part 310 may support and fix the light source part 330, and transmit power to the light source part 330.

Although the above description has been made based on the embodiments, these are merely examples and are not intended to limit the present invention, and those of ordinary skill in the art to which the present invention pertains should not be exemplified above without departing from the essential characteristics of the embodiments. It will be appreciated that many variations and applications are possible. For example, each component specifically shown in the embodiments may be modified. And differences relating to such modifications and applications will have to be construed as being included in the scope of the invention defined in the appended claims.

In addition, 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 may be combined or modified with respect to other embodiments by those 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.

1 to 14 are diagrams illustrating lighting devices according to embodiments.

Claims

A housing in which the first socket portion and the second socket portion are formed;

A reflector installed in the housing; And

A light source unit including a first connection terminal and a second connection terminal coupled to the first socket unit and the second socket unit, and having a plurality of light emitting diodes emitting light toward the reflector;

The shape of the first connection terminal is different from the shape of the second connection terminal, the shape of the first socket portion is different from the shape of the second socket portion.

The method of claim 1,

The first socket portion and the first connection terminal are coupled to form a first coupling portion, and the second socket portion and the second connection terminal are coupled to form a second coupling portion, the first coupling portion and the second coupling portion. At least one of the lighting unit includes a control unit for receiving a driving signal to control and drive the light source unit.

3. The method of claim 2,

And the control unit causes the plurality of light emitting diodes to selectively emit light.

3. The method of claim 2,

The control unit is a lighting device for adjusting the brightness and color of the plurality of light emitting diodes.

The method of claim 1,

The first connection terminal includes a block portion and a protrusion protruding downward from the block portion, and the second connection terminal includes a block portion,

And the first socket part and the second socket part include insertion parts into which the first and second connection terminals are inserted.

The method of claim 5,

The through hole is formed in the insertion portion of the first socket portion, the projection unit penetrates the through hole.

The method of claim 5,

The insertion portion of the first socket portion is formed with an insertion groove, the projection is disposed in the insertion groove lighting device.

The method of claim 5,

The block unit and the protrusion of the first connection terminal is formed integrally with the lighting device.

The method of claim 1,

The reflecting surface of the reflector is a parabolic light device comprising two parabolic reflecting surface.

The method of claim 1,

The light source unit includes a body including a first inclined surface and a second inclined surface, a light emitting groove formed on the first inclined surface and the second inclined surface, and a plurality of light emitting diodes installed in the light emitting groove.

The method of claim 10,

Illumination device is formed on the lower surface of the body of the light source unit irregularities.

The method of claim 10,

The light emitting groove is formed on both sides of the body extending along the longitudinal direction of the reflector.

The method of claim 10,

The light emitting groove is a plurality of lighting devices are disposed spaced apart from both sides of the body.

The method of claim 10,

The lens is disposed in the light emitting groove, or the lighting device filled with a resin.

A reflector installed in the housing; And

The lighting device has the same shape as that of the second connecting terminal.

The method of claim 15,

The first connection terminal and the second connection terminal includes a block portion,

The method of claim 15,

The first connection terminal and the second connection terminal includes a block portion and a protrusion protruding downward of the block portion,

The method according to claim 16 or 17,

The block portion and the protrusion is a lighting device having a shape of a circle, oval, polygon.

The method of claim 15,

The first connection terminal and the second connection terminal each comprises at least two pins, the first socket portion and the second socket portion includes a lighting device that the at least two pins are inserted.