KR101185253B1 - Led illumination apparatus - Google Patents

Abstract

PURPOSE: An LED device is provided to supply light with proper brightness by providing driving power according to a light emitting channel even though a part of LEDs is damaged. CONSTITUTION: A first light emitting unit has a first wire board(11) and a first conductive pattern. The first conductive pattern is formed on a first wire board. A plurality of second light emitting units have a second wire board(21) and a second conductive pattern. The second conductive pattern is formed on the second wire board. Driving power is provided according to a plurality of light emitting channels(CH1-CH5).

Description

LED lighting device {LED ILLUMINATION APPARATUS}

The present invention relates to an LED lighting device, and more particularly, to provide an illumination light of appropriate brightness even when a problem such as breakage of some LED elements occurs, and to easily change and replace parts, and is suitable for application to a street lamp device. It relates to an LED lighting device.

In general, incandescent lamps or fluorescent lamps are widely used as indoor or outdoor lighting lamps, and these incandescent lamps or fluorescent lamps have a short life and have a problem of frequent replacement.

In order to solve this problem, lighting fixtures using LEDs (Light Emitting Diodes), which have excellent controllability, fast response speed, high electro-optical conversion efficiency, long life, low power consumption and high brightness, have been developed. Reached.

LED has the advantage of low power consumption because of high photoelectric conversion efficiency and fast turn on / off speed because no preheating time is required because it is not thermally discharged light emission. In addition, since LED is free from gas or filament, it is strong and safe against shock, and it adopts stable DC lighting method to reduce power consumption, high repetition and pulse movement, and to reduce optic nerve fatigue. The lighting effect of various colors can be produced, and the small size of the light source can be used.

Because of these various advantages, the LED is used as a light source in many fields. In particular, recently, in the field of lighting, lighting fixtures employing semiconductor light emitting devices are rapidly being widely used to replace conventional incandescent lamps or fluorescent lamps.

In contrast to the various advantages described above, the LED has a narrow feature of directing light emitted from the device itself, so that a large number of LED devices are used to apply to a large lighting that needs to irradiate a large area such as an outdoor street light. shall.

Various electrical connection is made between multiple LED elements used for lighting. If one LED element is broken, all LED elements connected in series with the corresponding LED element do not emit light, and thus, sufficient brightness cannot be obtained. do. In particular, since the LED elements are often surface-mounted on the substrate, it is not easy to replace only one LED element that is broken while the lighting is installed, and the entire substrate on which the LED is mounted must be separated and repaired or replaced. A problem arises.

The present invention has been conceived to solve the above-described problem, and it is a technical object of the present invention to provide an LG lighting device that can maintain illumination of appropriate brightness even when a problem such as breakage of an LED element occurs. .

In addition, the present invention is a technical problem to solve the problem to provide an LED lighting device that is easy to maintain, and particularly suitable for large area lighting, such as street light devices can be changed or replaced parts.

According to an aspect of the present invention,

A first conductive pattern formed on the first wiring board such that a ring-shaped first wiring board, a plurality of first LED elements disposed on an upper surface of the first wiring board, and the plurality of first LED elements are connected in series; A first light emitting unit having; And

A plurality of second wiring substrates having a rectangular shape, a plurality of second LED elements disposed on an upper surface of the second wiring board, and a second conductive pattern formed on the second wiring board to interconnect the second LED elements in series; A second light emitting unit of

A plurality of light emitting channels including light emitting channels including the first LED elements connected to each other in series and a light emitting channel formed by connecting the second LED elements included in at least some of the plurality of second light emitting units in series with each other;

Driving power is provided for each of the plurality of light emitting channels, and the first light emitting part extends to form a predetermined angle with a plane formed by the plane part from a plurality of polygonal plane parts and a plurality of sides of the plane part, respectively. It is disposed on the outer surface of the flat portion of the frame portion having a portion, and the second light emitting portion is provided on the outer surface of the inclined portion provides an LED lighting device.

In one embodiment of the present invention, the first light emitting unit includes a plurality of first connection units for connection with the second light emitting unit, a power input terminal to which the driving power is input, the power input terminal and the plurality of first electrodes. And a third conductive pattern formed between the connecting portions and at least some of the plurality of first connecting portions to form an electrical connection structure according to the plurality of light emitting channels, wherein each of the plurality of second light emitting portions includes the second conductive pattern. The display device may further include a second connection part connected to the first connection part, and a connection lead part electrically connecting the first connection part and the second connection part.

In one embodiment of the present invention, the first connecting portion and the second connecting portion are female connectors having a socket structure, and the connecting lead portions are two male connectors respectively inserted into the female connectors to form an electrical connection, and the two It may include a conductive wire for electrically connecting the male connector.

In one embodiment of the present invention, the power input terminal is composed of two connecting terminals through which current is input and output, and the third conductive pattern is formed to connect both ends of the plurality of light emitting channels and the two connecting terminals, respectively. Can be.

In one embodiment of the present invention, the power input terminal includes a plurality of pairs of connection terminals each comprising two connection terminals through which current is input and output, and the third conductive pattern includes the plurality of connection terminal pairs and the plurality of light emission. It may be formed to connect one end of each of the channel.

In one embodiment of the present invention, the plurality of light emitting channels may be connected to one power input terminal and driven by the same driving power.

In one embodiment of the present invention, the plurality of light emitting channels may be connected to different power input terminals, respectively, and may be driven by different individual driving powers.

According to an embodiment of the present invention, light of different colors may be output for each of the plurality of light emitting channels.

In this embodiment, the light emitting channel including the first LED element outputs white light, and the plurality of light emitting channels including the second LED element may include a plurality of light emitting channels respectively outputting red light, green light, and blue light. Can be.

In one embodiment of the present invention, the second light emitting portion may be disposed adjacent to the outer circumference of the first light emitting portion. In this embodiment, the second light emitting portion may be disposed radially from the first light emitting portion, or may be disposed to have a slope of a predetermined angle with a plane formed by the first light emitting portion.

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In one embodiment of the present invention, the plurality of inclined portions may be formed integrally.

In one embodiment of the present invention, the body frame may further include a groove portion recessed to a predetermined depth at the boundary between the planar portion and the inclined portion.

In one embodiment of the present invention, the conductive line may be seated in the groove portion.

According to the present invention, by dividing a plurality of LED elements into a plurality of light emitting channels and providing driving power for each light emitting channel, even when a problem occurs in some LED elements, an appropriate illumination light can be provided by light emission of another light emitting channel. There is.

In addition, according to the present invention, by separating a plurality of LED elements on a plurality of wiring boards, and forming an electrical connection between each wiring board through a connector having a socket structure, when a problem occurs in a part of the lighting device Only the part of the board can be selectively changed or replaced, so the maintenance is very easy.

In addition, according to the present invention, the LED element disposed in the center portion and the LED element disposed in the form extending outward from the center portion is very suitable for lighting of a large area, in particular, the effect is very suitable for lighting, such as street lamps There is.

1 is a plan view of an LED lighting apparatus according to an embodiment of the present invention.
2 and 3A are circuit diagrams illustrating an electrical connection structure of an LED element of the LED lighting apparatus of FIG. 1.
3B is an embodiment showing the circuit configuration.
4 and 5 are an enlarged plan view and a perspective view of a part of the LED lighting apparatus of FIG.
6 is a perspective view of a frame portion included in an embodiment of the present invention.
FIG. 7 is a perspective view of the LED lighting apparatus to which the frame unit of FIG. 6 is applied.
FIG. 8 is an enlarged view of a portion of the LED lighting apparatus of FIG. 7.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, embodiments of the present invention may be modified in various other forms, and the scope of the present invention is not limited to the embodiments described below. The embodiments of the present invention are provided to more fully describe the present invention to those skilled in the art. In addition, in describing the present invention, the defined terms are defined in consideration of the functions of the present invention, and they may be changed depending on the intention or custom of the technician working in the field, so that the technical components of the present invention are limited It will not be understood as meaning.

1 is a plan view of an LED lighting apparatus according to an embodiment of the present invention,

Referring to FIG. 1, an LED lighting apparatus according to an embodiment of the present invention includes a first light emitting unit 10 and a second light emitting unit 20. In addition, the LED lighting apparatus according to the embodiment of the present invention may further include a connection lead portion 30.

The first light emitting part 10 includes a ring-shaped first wiring board 11, a plurality of first LED elements 12 and a plurality of first LED elements disposed on an upper surface of the first wiring board 11. And a first conductive pattern (not shown) formed on the first wiring board 11 so as to connect 12 in series with each other.

In addition, the first light emitting part 10 may further include a first connection part 13 to which the connection lead part 30 for electrical connection is coupled with the second light emitting part 20 which will be described later. In addition, the first light emitting unit 10 further includes a power input terminal 15 formed on the first wiring board 11 and connected to a power supply conductor 14 for providing power for driving an LED element from the outside. can do.

A first conductive pattern (not shown) formed on the upper surface of the first wiring board 11 connects the first LED elements 12 in series. The first LED element 12 electrically connected in series by the first lead pattern (not shown) on the first wiring board 11 constitutes the first light emitting channel CH1.

On the other hand, the connection relationship of the first conductive pattern (not shown) is a third conductive pattern (not shown) formed for the electrical configuration between the arrangement of the first LED element 12 or other light emitting channels CH2-CH5 described later. It can be formed in a variety of shapes according to the shape of the si), since the shape can be easily determined in a variety of forms as required by those skilled in the art will be omitted to show a specific form through the drawings.

On the other hand, the first connector 13 may be a socket-type female connector to be easily attached to and detached from the connection lead portion 30.

The second light emitting unit 20 includes a second wiring board 21 having a rectangular shape, a plurality of second LED devices 22 and the second LED devices 22 disposed on an upper surface of the second wiring board 21. ) May include a second conductive pattern (not shown) formed on the second wiring board 21 so as to be connected in series with each other. A plurality of second light emitting units 20 may be formed to enable illumination of a large area.

The plurality of second light emitting units 20 may be disposed along an outer circumference of the first light emitting unit 10 having a ring shape. For example, the second light emitting part 20 is radially disposed on the same plane as the plane formed by the first wiring board 11 of the first light emitting part 10 and has a circular light irradiation area. A surface light source can be formed. In another example, the second light emitting part 20 may be disposed to have a slope of a predetermined angle with a plane formed by the first light emitting part 10. In this example, a larger light irradiation area may be secured by differently setting a region where the first light emitter 10 emits light and a region where the second light emitter 20 emits light.

Similar to the first light emitting part 10, a connection lead part 30 for electrical connection with the first light emitting part 10 is formed on an upper surface of the second wiring board 21 of the second light emitting part 20. The second connecting portion 23 to be coupled may be formed. Similar to the first connector 13, the second connector 23 may be a female connector in the form of a socket to facilitate attachment and detachment with the connection lead 30.

The connection lead part 30 electrically and physically connects the first light emitting part 10 and the second light emitting part 20.

The plurality of second light emitting units 20 may form a plurality of light emitting channels CH2-CH5. The second LED elements included in each of the second light emitting units belonging to one light emitting channel may be connected in series. That is, the LED elements in one light emitting channel may be connected in series.

The second LED element included in the second light emitting part 20 forming one light emitting channel may form a mutual series connection structure by a third conductive pattern (not shown) formed on the first light emitting part 10. have. That is, the third conductive pattern (not shown) is connected between the second LED elements of the second light emitting part belonging to one light emitting channel by appropriately connecting the first connection part 13 to which the second light emitting part of each light emitting channel is connected. It is possible to form a series connection. In addition, the third conductive pattern (not shown) forms an electrical connection between the power input terminal 15 formed in the first light emitting unit 10 and the LED elements of each light emitting channel, so that the LED elements of each light emitting channel emit light. Can be driven.

The connection structure of the second conductive pattern and the connection structure of the third conductive pattern may be formed in various shapes according to the surrounding environment, such as the first conductive pattern, and the shape thereof may be easily determined in a wide variety of shapes as needed by those skilled in the art. Since it is possible to show the specific form through the drawings will be omitted.

2 and 3A are circuit diagrams illustrating an electrical connection structure of an LED element of the LED lighting apparatus of FIG. 1.

In the connection example of FIG. 2, the LED elements of each light emitting channel CH 1 -CH 5 are connected in series with each other, and each light emitting channel CH 1 -CH 5 is commonly connected to one power input terminal 15. The power input terminal 15 may include a pair of connection terminals including a connection terminal through which a driving current is input to the LED element, and a connection terminal through which the driving current passing through the LED is output.

According to such a connection relationship, some LED elements connected to one light emitting channel are broken so that even if the serial connection state is opened, the driving of other light emitting channels is not affected. That is, even when some light emitting channels become impossible to emit light, continuous illumination is possible by light emission of other light emitting channels. In particular, since each driving channel (CH1-CH5) forms an electrical parallel connection with each other, when one light emitting channel is opened when the driving current provided is constant, the current provided to the other light emitting channel increases, so The amount of light emitted may further increase. This may partially compensate for a decrease in the amount of light caused by the light emitting channel in the non-driven state.

Subsequently, in the connection example of FIG. 3A, the LED elements of each of the light emitting channels CH1 to CH5 do not form a connection relationship with each other, and each of them may be individually connected to the plurality of connection terminal pairs 15a-15e. That is, each of the light emitting channels CH1 to CH5 may be driven by different driving power sources.

According to such a connection relationship, not only is not affected by the inability of other light emitting channels, but it is possible to provide driving power suitable for the characteristics of each channel. For example, by controlling the size of the driving power provided to each pair of connectors, it is possible to control the brightness of a part of the lighting, and even if the characteristics or the number of LED elements included in each channel is different, the appropriate driving for the corresponding light emitting channel. Power can be provided.

As described above, when driving power is provided for each of the light emitting channels, the light may be applied to the landscape by outputting light of different colors for each light emitting channel.

In order to output light of different colors for each light emitting channel, an LED device for outputting light of different colors should be applied to each light emitting channel. In this case, since the LED elements for outputting light of different colors may have different characteristics, the driving power to be provided may have different magnitudes. Therefore, in the example of outputting light of different colors for each light emitting channel, it may be more preferable to apply a connection structure of an LED device that provides driving power having different sizes for each light emitting channel as shown in FIG. 3A.

For example, a light emitting channel configured by the first LED elements 12 included in the first light emitting unit 10 applies an LED element for outputting white light, and a second LED included in the second light emitting unit 20. The plurality of light emitting channels configured by the elements 22 may be configured to include a plurality of light emitting channels emitting red light, green light, and blue light. In this case, as shown in FIG. 1, the plurality of light emitting channels of the second LED elements 22 do not have a structure in which the second light emitting units 20 arranged in succession form one light emitting channel. And the second light emitting part 20 for outputting red light, green light, and blue light are arranged so that different colors are adjacent to each other, and the third conductive pattern is formed on the first wiring board 11 of the first light emitting part 10 in the same color. It is preferable to configure the light emitting channel by forming a series connection between the second light emitting unit 20 for outputting the. In the lighting device having the configuration of the light emitting channel, white light is dimmed under the light emitting channel by the first LED element 12. In addition, in the adjacent portion of the light emitting channel by the second LED element 22 is made of the dimming of each color can see all three colors with the naked eye, but a predetermined distance from the light emitting channel by the second LED element 22 In the case of observing at the abnormally spaced position, light of another color may be observed by mixing light of different colors emitted from neighboring light emitting channels by the direction angle of the second LED element 22. Finally, the light of the light emitting channels by the second LED element 22 can be observed to be white at a sufficient distance to allow the mixing of the three colors.

As such, when LED elements of different colors are applied to each emission channel, light of various colors can be observed according to the distance from the illumination, and thus, it can be applied as a landscape for pursuing an aesthetic element.

3B is a diagram showing one embodiment of the configuration of a circuit in relation to the present invention.

4 is an enlarged plan view of a part of the LED lighting apparatus of FIG. 1 in detail. 5 is an enlarged perspective view showing a part of the LED lighting apparatus of FIG. 1 in detail.

As shown in FIG. 4 and FIG. 5, the connection lead part 30 includes a first female connector (first connection part) 13 and a second light emitting part 20 of the first light emitting part 10. Two male connectors 32 respectively inserted in the second female connector 23 and forming electrical connections, and a conductive line 31 electrically connecting the two male connectors 32. Can be configured.

The first and second female connectors 13 and 23 have a space in which the male connector 32 is inserted and seated, and a conductive pin 131 inserted into the conductive hole 321 formed in the male connector 32. Has The male connector 32 of the connection wire 30 has a conductive hole 321 having a space into which the conductive pin 131 is inserted. The conductive hole 321 is electrically connected to the conductive line 31.

For example, the first female connector 13 of the first light emitting unit 10 may be electrically connected to the power input terminal 15 through a conductive pattern, and the second female connector of the second light emitting unit 20 may be 23 may be electrically connected to the LED element 22 of the second light emitting part 20 through a conductive pattern. The male connector 32 disposed at one end of the connecting lead 30 is inserted into the first female connector 13, and the male connector 32 disposed at the other end of the connecting lead 30 is the second light emitting part 20. When inserted into the second female connector 23, the power supply power provided from the power input terminal 15 is provided to the LED element 22 of the second light emitting unit 20 to emit light.

As described above, according to the exemplary embodiment of the present invention, the LED elements are dividedly disposed on the plurality of substrates, including the first light emitting portion 10 and the plurality of second light emitting portions 20. In addition, the first light emitting unit 10 and the second light emitting unit 20 form an electrical connection through a male and female connector such as a socket structure. Through the configuration of the first and second light emitting units 10 and 20, when a problem such as impossibility of emitting light occurs such that an LED element disposed in some light emitting units is damaged, only the light emitting unit having a problem is easily changed. , Can be replaced. Through this, one embodiment of the present invention is very easy to maintain.

On the other hand, the LED lighting apparatus according to an embodiment of the present invention is disposed in the frame as shown in Figure 6 it is easy to be applied to large area lighting, such as street lights.

6 is a perspective view showing an example of a frame portion that can be applied to an embodiment of the present invention.

The frame portion 40 shown in FIG. 6 is formed to have a flat portion 41 formed into a flat surface, a plane portion 41 extending from the flat portion 41, and an inclination of a plane formed by the flat portion 41 and a predetermined angle. It may include a plurality of inclined portion 42, and the edge portion 43 formed at the end of the inclined portion 42. The flat part 41 and the edge part 43 are formed in parallel horizontal planes, and the inclined part 42 is disposed with a predetermined inclination therebetween, so that the frame part 40 has a bristled hat shape. Can be. On the other hand, the frame portion 40 is made of a material that is easy to heat dissipation can be effectively released heat generated from the LED element.

In the example of FIG. 6, the planar portion 41 may have a planar shape of which is formed in a octagonal shape. That is, the planar portion 41 may have a total of 12 sides at the boundary with the inclined portion 42. Accordingly, a total of twelve inclined portions 42 extending from the flat portion 41 at a predetermined angle may be formed.

As the inclined portion 42 extends upward at a predetermined angle from the edge of the twelve sides of the flat portion 41, the inclined portion 42 is formed in a total of twelve faces. That is, as the inclined portion 42 extends from the end of the flat portion 41 toward the edge portion 43, the inner diameter thereof is enlarged, and each surface has a trapezoidal shape when viewed from the side, and the plurality of inclined portions The part 42 may be formed in one piece instead of being separated from each other.

A plurality of grooves 44 having a shape recessed to a predetermined depth may be formed at the boundary between the planar portion 41 and the inclined portion 42. The groove 44 may be formed at each boundary area where 12 sides of the planar portion 41 and 12 surfaces of the inclined portion 42 meet each other. The groove portion 44 is a conductive line 31 of the connection line 30 forming a connection between the first light emitting portion 10 and the second light emitting portion 20 disposed on the outer surface of the frame portion 40 Can be seated.

FIG. 7 is a perspective view illustrating an example in which the LED lighting apparatus of one embodiment of the present invention described in FIGS. 1 to 5 is installed on an outer surface of the frame portion 40.

As shown in FIG. 7, the first light emitting portion 10 is disposed on the outer surface of the flat portion 41, and the plurality of second light emitting portions 20 are disposed on the outer surface of the inclined portion 42, respectively. Can be. The first wiring board 11 of the first light emitting unit 10 and the second wiring board 21 of the second light emitting unit 20 may be connected using a coupling method conventional in the art, such as a screw coupling method. It may be attached to the frame portion 40.

The LED lighting apparatus shown in FIG. 7 may be used as a street lamp. When used as a street light, the flat portion 41 of the frame portion 40 may be disposed parallel to the ground so as to face the ground. Accordingly, the first light emitting part 10 disposed on the flat part 41 emits light in a direction directly under the lighted position, and the second light emitting part 20 disposed on the inclined part 42 is directly Light is irradiated to the surrounding area of the lower part.

FIG. 8 is an enlarged view of a part of the LED lighting apparatus of FIG. 7, more specifically, the groove 44 of the frame portion 40.

As described above, the first light emitting unit 10 and the second light emitting unit 20 are electrically connected through the connection wiring 30. As shown in FIG. 8, the conductive line 31 of the connection line 30 is recessed to a predetermined depth at the boundary between the planar portion 41 and the inclined portion 42 of the frame portion 40. Each of the grooves 44 formed may be seated. In this manner, the conductive wires 31 may be seated in the grooves 44 to prevent the conductive wires 31 from being exposed to the outside. As a result, the conductive line 31 may prevent the interference of the light emitted from the LED elements 11 and 21 and may prevent the conductive line 31 from interfering with the first and second light emitting units 10 and 20. It can further solidify the bond state with.

10: first light emitting portion 11: the first wiring board
12: LED element 13: first connection portion (first female connector)
20: second light emitting unit 21: second wiring board
22: LED element 23: second connection portion (second female connector)
30: connection line 31: conductive line
32: male connector 40: frame portion
41: flat part 42: inclined part
43: edge 44: groove
CH1-CH5: light emitting channel

Claims (16)

A first conductive pattern formed on the first wiring board such that a ring-shaped first wiring board, a plurality of first LED elements disposed on an upper surface of the first wiring board, and the plurality of first LED elements are connected in series; A first light emitting unit having; And
A plurality of second wiring substrates having a rectangular shape, a plurality of second LED elements disposed on an upper surface of the second wiring board, and a second conductive pattern formed on the second wiring board to interconnect the second LED elements in series; A second light emitting unit of
A plurality of light emitting channels including a light emitting channel including the first LED elements connected in series with each other and a light emitting channel formed by connecting the second LED elements included in at least some of the plurality of second light emitting units in series are formed; Driving power is provided for each of the plurality of light emitting channels.
The first light emitting portion is disposed on an outer surface of the flat portion having a polygonal flat portion and a frame portion having a plurality of inclined portions extending from a plurality of sides of the flat portion to form a predetermined angle with a plane formed by the flat portion. And the second light emitting part is disposed on an outer surface of the inclined part.
The method of claim 1,
The first light emitting part may include a plurality of first connection parts for connection with the second light emitting part, a power input terminal through which the driving power is input, between the power input terminal and the plurality of first connection parts, and the plurality of first connections. Further having a third conductive pattern formed between the at least some of the connecting portion to form an electrical connection structure according to the plurality of light emitting channels,
Each of the plurality of second light emitting parts further includes a second connection part connected to the second conductive pattern,
LED lighting device further comprises a connecting lead portion for electrically connecting the first connecting portion and the second connecting portion.
The method of claim 2,
The first connector and the second connector is a female connector having a socket structure,
The connecting lead portion includes two male connectors each inserted into the female connector to form an electrical connection, and an LED lighting device comprising a conductive wire electrically connecting the two male connectors.
The method of claim 2,
The power input terminal is composed of two connection terminals through which current is input and output, respectively, wherein the third conductive pattern is formed to connect both ends of the plurality of light emitting channels and the two connection terminals, respectively.
The method of claim 2,
The power input terminal includes a plurality of pairs of connection terminals each including two connection terminals through which current is input and output, and the third conductive pattern connects the plurality of connection terminal pairs and both ends of the plurality of light emitting channels, one by one. LED lighting apparatus, characterized in that formed.
The method of claim 1,
And the plurality of light emitting channels are connected to one power input terminal and driven by the same driving power.
The method of claim 1,
And the plurality of light emitting channels are connected to different power input terminals, respectively, and are driven by different individual driving powers.
The method of claim 1,
LED lighting device, characterized in that for outputting light of different colors for each of the plurality of light emitting channels.
The method of claim 8,
The light emitting channel including the first LED element outputs white light,
The plurality of light emitting channels including the second LED element comprises a plurality of light emitting channels for outputting red light, green light and blue light, respectively.
The method of claim 1,
And the second light emitting part is disposed adjacent to an outer circumference of the first light emitting part.
The method of claim 10,
And the second light emitting part is disposed radially from the first light emitting part.
The method of claim 10,
And the second light emitting part is disposed to have a slope of a predetermined angle with a plane formed by the first light emitting part.
delete The method of claim 1,
LED lighting device, characterized in that the plurality of inclined portion formed integrally.
The method of claim 1, wherein the body frame,
LED lighting device further comprises a groove recessed to a predetermined depth at the boundary between the planar portion and the inclined portion.
16. The method of claim 15,
Each of the first light emitting part and the second light emitting part includes a first connection part and a second connection part for electrical connection, and the first connection part and the second connection part are connected by a conductive line.
And the conductive wire is seated in the groove.

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