WO2015142063A1

WO2015142063A1 - Led lighting device

Info

Publication number: WO2015142063A1
Application number: PCT/KR2015/002644
Authority: WO
Inventors: 김영완
Original assignee: 김영완
Priority date: 2014-03-18
Filing date: 2015-03-18
Publication date: 2015-09-24

Abstract

The present invention relates to an LED lighting device and, more specifically, to an LED lighting device for lighting using an LED element. Disclosed is an LED lighting device comprising: at least one metal plate; and at least one LED element installed on the surface of the metal plate. In the LED element, only one of a first electrode and a second electrode is coupled to the metal plate and the metal plate.

Description

LED lighting device

The present invention relates to an LED lighting device, and more particularly, to an LED lighting device for lighting using the LED element.

In general, the lighting device is widely used as a lighting means such as indoor or outdoor lighting, a traffic light, a warning light.

As a lighting device, a filament that emits light while being heated to a high temperature is used when a current is supplied, and in recent years, a lighting device using an LED (LED) that consumes less power, has excellent light brightness, and has a long lifespan is attracting attention. I am getting it.

However, the LED has a low light diffusion property due to the strong straightness of the light, and the side roughness is insufficient in the present situation is insufficient to replace the conventional lighting device using the filament.

1 and 2 show a conventional luminaire 1 having a bulb-shaped bulb 10 in an automobile, as shown, the conventional luminaire 1 functions like a headlamp or a fog lamp. It has a reflective member 20 optimized for.

In particular, the reflecting member 20 is a socket whose reflecting surface is coupled to the light emitting portion 11 of the bulb-shaped bulb 10, ie the position of the filament, for example in the luminaire 1, to the motor vehicle shown in FIG. 2. It is generally designed to correspond to the distance l from (12).

By the way, unlike the conventional bulb-type bulb 10 that is irradiated in almost all directions when the conventional lighting fixture (1) having the above structure to replace the LED luminaire due to the optical characteristics of the LED having a progressive in one direction In the conventional lighting device 1, the recycling of the reflective member 20 is impossible and requires a separately designed reflective member.

In the case of replacing the conventional lighting fixture having a bulb-type bulb with the LED lighting fixture, there is a problem in that the replacement cost, such as the redesign of the reflective member is high, thereby acting as an obstacle to the utilization effect and diffusion of the LED lighting fixture.

An object of the present invention is to provide an LED lighting device that can have a similar lighting effect without a separate structural change in the conventional lighting equipment.

Another object of the present invention is to provide an LED lighting device that can replace the existing bulb-type bulbs without additional structural changes in the existing lighting assembly, such as headlights, fog lights of automobiles using bulb bulbs.

Still another object of the present invention is to provide an LED lighting device that can have a similar lighting effect to a bulb-type bulb in a conventional lighting installation having a reflector etc. optimized for a bulb-type bulb.

It is still another object of the present invention to position LED elements corresponding to a light source positioned by a bulb-type bulb in a conventional lighting fixture having a reflector or the like optimized by two or more light sources in a bulb-type bulb. It is to provide an LED lighting device that can have a similar lighting effect to the bulb-type bulb without a separate structural change.

The present invention has been made to achieve the object of the present invention as described above, the present invention comprises at least one metal plate; At least one LED element provided on the surface of the metal plate, the LED element, discloses an LED lighting device, characterized in that any one of the first electrode and the second electrode is coupled to the metal plate and the metal plate. .

The invention also provides a metal plate; At least one LED element installed on the surface of the metal plate, and the LED element, the heat slug only discloses an LED lighting device, characterized in that coupled to the metal plate and the metal plate.

The present invention also includes a socket portion 230 for coupling with the structure to be installed LED lighting device; A pair of first metal plates 110-5 having one end coupled to the socket portion 230 and having first LED elements 120a respectively installed on opposite surfaces of the surfaces facing each other; Between the pair of first metal plates 110-5 parallel to the pair of first metal plates 110-5, one end of which is coupled to the socket part 230, and is opposite to each other. A pair of second metal plates 110-6 each having a second LED element 120b disposed on an opposite side thereof; Parallel to the pair of second metal plates 110-6 between the pair of second metal plates 110-6, one end of which is coupled to the socket portion 230, and the second metal At least one third metal plate (110-6) having a bent surface portion (113) bent to be perpendicular to the plate (110-6) and having a third LED element (120c) installed at the bent surface portion (113); Disclosed is an LED lighting apparatus comprising a spacing member 280 to which the other ends of the first to third metal plates are coupled to maintain the spacing between the first to third metal plates.

The first to

third LED elements

120a, 120b, and 120c may be coupled to each of the first to third metal plates so that only one of the first and second electrodes may be thermally conductive.

The first metal plate 110-5 has a cutout portion 310 formed therein so that the second LED element 120b installed on the second metal plate 110-6 positioned inside may be exposed to the outside. Can be.

The first LED element 120a and the second LED element 120b may be provided with different distances from the socket part 280.

The LED lighting device is installed in a vehicle headlight in place of a light bulb having two filaments so as to enable uplight and downlight by one light bulb, and the first LED element 120a and the second LED element 120b. One of which may be located at the position of the filament corresponding to the high beam, the other may be located at the position of the filament corresponding to the downlight.

A first terminal 237 installed in the socket 230 to connect any one of the first LED element 120a and the second LED element 120b and the third LED element 120c in series or in parallel; ) And the second terminal 238; A third terminal 239 installed in the socket 230 to connect the second terminal 238 to the other of the first LED element 120a and the second LED element 120b in series; In addition, the second terminal 238 may be shared and a power may be connected to at least one of the first terminal 237 and the third terminal 239.

The first to third metal plates may not be thermally conductive as the remaining electrodes such that only one of the first and second electrodes of each of the first to

third LED elements

120a, 120b, and 120c may be thermally conductive. Contact preventing means for preventing the contact may be formed at a position corresponding to the non-contact electrode.

The contact preventing means may be a through hole or a cutout formed in each of the first to third metal plates.

In the non-contact electrode, a power connection line for connection with a terminal of another LED element or a power supply line may be connected through the through hole or cutout.

The contact preventing means may be an insulating member formed on each of the first to third metal plates.

The socket portion is detachably coupled to the structure and the body made of a non-conductive material; A terminal connection part installed on the main body for electrical connection with a connection terminal installed on the structure; It may include a device power supply for electrically connecting the LED element and the terminal connecting portion.

The device power supply part includes a plurality of terminal parts electrically connected to the terminal connection part, a support substrate part coupled to the main body to support the metal plate, and at least one wire connecting the LED element and the terminal part. can do.

The LED lighting apparatus according to the present invention has an advantage that the structure is simple and efficient heat dissipation by having a structure that radiates heat generated by the LED element by transferring the metal plate by installing the LED element on at least one metal plate. .

In addition, the LED lighting device according to the present invention is composed of a pair of metal plates, each LED element is coupled to the outer surface of the opposite surface facing each other to have a light irradiation effect similar to the bulb-type bulb bulb is used By replacing the bulb-type bulb in the existing lighting device has the advantage that can maximize the utilization of the LED lighting device.

In particular, the existing lighting system using a bulb-type bulb is characterized in that the reflection shade is provided with a reflection shade is optimized in response to the light emitting portion of the bulb-type bulb, in particular bulb-type bulb, LED lighting apparatus according to the present invention, one or more It is composed by installing LED elements on the metal plate. By placing the LED element at the position corresponding to the light emitting part of the existing bulb type bulb, it has a light irradiation effect similar to the bulb type bulb, so that the bulb type bulb is used. By replacing the bulb bulb in the lighting device there is an advantage that can maximize the utilization of the LED lighting device.

As a specific example, the LED lighting apparatus according to the present invention has the advantages, such as when used in the headlights, fog lights, direction indicators for automobiles.

First of all, LED lighting device has different lighting characteristics from bulb-type bulbs.In the case of LED lighting devices, when used as lighting fixtures requiring special lighting effects such as headlights, fog lamps, direction indicator lamps, etc. There is a problem in that the design of the reflector must be changed.

However, the LED lighting device according to the present invention has a light irradiation effect similar to that of a bulb-type bulb by being positioned at a position corresponding to the light emitting portion of the existing bulb-type bulb, and bulb-type bulb in the existing lighting device using a bulb-type bulb By replacing the has the advantage that can maximize the utilization of the LED lighting device.

Furthermore, various lighting effects, for example, having two filaments with different positions, that is, the position of the light source, can correspond to the position of each light source in the existing lighting device that can simultaneously realize the high and the low light by a bulb bulb. Positioning the LED element has the advantage of maximizing the utilization of the LED lighting device by replacing the bulb-type bulb in the existing lighting device that the bulb-type bulb is used.

1 is a conceptual view showing a headlamp for a vehicle as a conventional lighting device having a bulb-shaped bulb.

FIG. 2 is a side view illustrating an example of a bulb bulb used in the headlight of the automobile of FIG. 1.

Figure 3a is a perspective view showing the LED lighting apparatus according to the first embodiment of the present invention.

3B is an exploded view showing a part of the LED lighting apparatus of FIG. 1.

4A is a side view of the LED lighting device of FIG. 3A.

4B is a plan view of the LED lighting apparatus of FIG. 3A.

FIG. 5 is a cross-sectional view taken along the line VV in FIG. 3A.

FIG. 6 is a cross-sectional view in the V-V direction showing a modification of FIG. 5.

7 is a side view showing an LED lighting apparatus according to a second embodiment of the present invention.

8 is a plan view of the LED lighting apparatus of FIG.

9 is a side view showing an LED lighting apparatus according to a third embodiment of the present invention.

10 is a plan view of the LED lighting apparatus of FIG.

11 is a perspective view showing an LED lighting apparatus according to a fourth embodiment of the present invention.

12 is an exploded perspective view showing the LED lighting device of FIG.

FIG. 13A is a plan view of the LED lighting apparatus of FIG. 11, and FIG. 13B is a side view of the LED lighting apparatus of FIG. 11.

14 is a conceptual diagram illustrating an example of an equivalent circuit diagram of the LED lighting apparatus of FIG. 11.

15 is a conceptual diagram illustrating an example in which the LED lighting device of FIG. 11 is installed in a conventional lighting device in which a bulb-type bulb is installed.

FIG. 16 is a perspective view illustrating an LED lighting apparatus according to a fifth embodiment of the present invention, in which a light blocking unit is additionally installed in the configuration of the fourth embodiment.

17A is a plan view of the LED lighting apparatus of FIG. 16, and FIG. 17B is a side view of the LED lighting apparatus of FIG. 16.

18 is a perspective view showing an LED lighting apparatus according to a sixth embodiment of the present invention.

19 is a plan view of the LED lighting apparatus of FIG.

20 is an exploded view of the LED lighting device of FIG. 18.

FIG. 21A is a plan view illustrating a first metal plate and a covering metal plate of the LED lighting apparatus of FIG. 18. FIG.

FIG. 21B is a plan view illustrating a second metal plate and a covering metal plate of the LED lighting apparatus of FIG. 18. FIG.

FIG. 21C is a plan view of an intermediate metal plate of the LED lighting apparatus of FIG. 18. FIG.

22 is a perspective view showing the LED lighting apparatus according to the seventh embodiment of the present invention.

FIG. 23 is a plan view of the LED lighting apparatus of FIG.

24 is an exploded view of the LED lighting device of FIG. 22.

FIG. 25A is a plan view illustrating a first metal plate and a heat radiation metal plate of the LED lighting apparatus of FIG. 22.

FIG. 25B is a plan view illustrating a second metal plate and a heat radiation metal plate of the LED lighting apparatus of FIG. 22.

FIG. 25C is a plan view of an intermediate metal plate of the LED lighting apparatus of FIG. 22.

26 is a perspective view showing the LED lighting apparatus according to the eighth embodiment of the present invention.

FIG. 27 is a perspective view of the LED lighting device of FIG. 26, seen from another direction. FIG.

FIG. 28 is an exploded perspective view of the LED lighting device of FIG. 26.

27A to 27B are side views showing the first metal plate, the second metal plate and the intermediate metal plate of the LED lighting apparatus of FIG. 26, respectively.

30 is a side view of the LED lighting device of FIG. 26.

FIG. 31 is a plan view of the LED lighting apparatus of FIG.

32 is an equivalent circuit diagram of the LED lighting device of FIG.

33 is a plan view showing a modification of the LED lighting apparatus according to the eighth embodiment of the present invention.

34 is a front view of the LED lighting device of FIG.

35 is a plan view illustrating a substrate of the LED lighting apparatus of FIG. 33.

36A to 36D are plan views illustrating a part of a manufacturing method of the LED lighting apparatus according to the present invention.

37 is a sectional view showing the LED lighting apparatus according to the ninth embodiment of the present invention.

38 is a perspective view showing the structure of a metal member in the LED lighting device of FIG.

FIG. 39 is a plan view illustrating a metal plate for manufacturing the metal member of FIG. 38.

40 is a cross-sectional view in the A-A direction of the metal member of FIG. 2.

41 is a perspective view of the LED lighting apparatus according to the tenth embodiment of the present invention.

FIG. 42 is a plan view illustrating a metal plate for manufacturing the metal member of FIG. 41.

43 is a bottom view showing the LED lighting apparatus according to the eleventh embodiment of the present invention.

FIG. 44 is a cross-sectional view taken along the B-B direction in FIG. 43.

45 is a bottom view showing the LED lighting apparatus according to the twelfth embodiment of the present invention.

FIG. 46 is a cross-sectional view taken along the C-C direction in FIG. 44.

Hereinafter, the LED lighting apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

LED lighting device according to the present invention, as shown in Figure 3a to Figure 46, one or more metal plate 110; It includes at least one LED element 120 installed on the surface of the metal plate (110).

The metal plate 110 has a plate shape so that the LED element 120 can be installed and supported, and any material as long as it has a high thermal conductivity such as aluminum, aluminum alloy, copper, copper alloy, and SUS to facilitate heat dissipation. It is possible.

In particular, the metal plate 110 is more preferably copper or a copper alloy in consideration of workability, thermal conductivity, and conductivity.

In addition, the thickness of the metal plate 110 is preferably minimized if possible without structural rigidity and manufacturing limitations.

In particular, the thickness of the metal plate 110 is preferably 0.01 mm to 0.5 mm, more preferably 0.1 mm to 0.4 mm. However, the thickness of the metal plate 110 is not limited to the above numerical value, of course, may have a variety of thickness depending on the design needs.

In addition, the metal plate 110 may be coated with a material having a high reflectance such as silver in order to increase a reflection effect of light irradiated from the LED device 120 on the surface thereof.

In addition, the metal plate 110 may be coated with an insulating material to impart insulating properties to at least a portion of its surface.

In addition, the metal plate 110, nickel may be plated on the surface. However, the heat dissipation of the heat of the metal plate 110 by nickel plating may be prevented and may be used without nickel plating.

In addition, the metal plate 110 is preferably coated in black with a material such as black epoxy paint to maximize the heat dissipation effect.

In this case, a part of the LED element 120 may not be coated for bonding, soldering, or the like.

In addition, the metal plate 110 may be attached or printed with a wire for power connection to the LED device 120.

In addition, the metal plate 110, a circuit may be formed in a pattern.

In addition, the metal plate 110 may be coupled to a board, such as FPCB on which the LED element 120 may be installed.

In addition, the metal plate 110 may be printed with a synthetic resin material for preventing the solder from escaping to a region other than the solder region for the manufacturing process, that is, for bonding with the LED element 120.

Meanwhile, the metal plate 110 may have various shapes in consideration of the heat radiating effect of the LED device 120 and the light irradiation effect of the LED device 120.

Specifically, as shown in FIGS. 3A and 3B, the metal plate 110 may have a flat plate shape and may have, for example, a planar shape similar to a bulb.

In addition, the metal plate 110, as shown in Figures 7 to 10, the mounting surface portion 112 is installed with the LED element 120, the bending surface portion 113 is bent and extended with the mounting surface portion 112 It may be composed of a bending metal plate (110-1) comprising.

The bent metal plate 110-1 includes a plurality of metal plates 110 and bent surface portions 113 coupled to the supporting structure such as the socket portion 230 to maximize the light irradiation effect of the LED device 120. And characterized in that it comprises an installation surface portion 112 formed integrally with.

At this time, the mounting surface portion 112 is a portion for determining the light irradiation direction of the LED element 120 is formed so that the normal line of the surface on which the LED element 120 is installed is parallel to the light irradiation direction of the LED element 120.

The bent surface portion 113 is formed integrally with the installation surface portion 112 to support the structure such as the socket portion 230 in parallel (most preferably), vertically, and inclined with the adjacent metal plate 110. Various configurations are possible as the combined configuration.

On the other hand, the metal plate 110 is preferably composed of a plurality, when a plurality of the plurality of metal plates 110, at least a portion of the surface on which the LED element 120 is installed is parallel or perpendicular to each other Or, it may be installed to make an inclination.

The metal plate 110 as described above, 1) the LED element 120 directly and firmly supported-for reference FPCB itself is not possible to support the LED element 120 itself, low thermal conductivity synthetic resin material It has a low heat dissipation effect. In the case of a metal PCB, heat is transmitted in the presence of an insulation layer for insulation between the printed circuit board and the metal layer (aluminum), specifically, an LED element 120, solder, copper wiring, an adhesive layer, an insulation layer, an adhesive layer, and an aluminum metal layer. And heat release effect is low, there is a bottleneck phenomenon during heat dissipation, there is a thick problem as a whole-can perform the role, 2) of the first terminal 121 and the second terminal 122 of the LED element 120 It is possible to perform the role of the electrical conductor for supplying power to the LED element 120 by being directly connected to any one, 3) the role of heat dissipation member that receives heat from the LED element 120, in particular the LED element 120 By at least one of the first terminal 121, the second terminal 122, the heat slug 124 of the heat dissipation can be effectively made by soldering, etc. 4) Bulb-type bulb despite the simple structure Was placed at the optimum position on the light-emitting portion (the filament) can increase the utilization effect utilizing the existing reflector.

The LED element 120 is an LED element that emits light by supplying DC power, and includes a white LED element that emits white light, a yellow LED element that emits yellow light, a blue LED element, a red LED element, and a green LED element. Various LED elements such as a tricolor LED chip in which a blue LED element, a red LED element, and a green LED element "are formed as one chip may be used.

In addition, the LED device 120, a chip containing one LED semiconductor device is preferable.

For example, as shown in FIG. 5, the LED device 120 may include a first electrode 121 and a second electrode 122 which are + and − terminals.

In addition, as shown in FIG. 5, the LED element 120 includes a heat slug 124 for heat dissipation in addition to the first electrode 121 and the second electrode 122, which are + and − terminals. It may further comprise.

The heat slug 124 is configured to dissipate heat generated from the LED element and may be integrally formed with the first electrode 121 and the second electrode 122 according to the structure thereof.

For reference, FIG. 5 is a structure for illustrating the first electrode 121, the second electrode 122, and the heat slug 124 in the LED device 120, which may be different from the structure of the actual LED device. Of course.

Meanwhile, the LED device 120 is coupled to the metal plate 110 such that only one of the first electrode 121 and the second electrode 122 can be thermally conductive with the metal plate 110 when the metal plate 110 is coupled with the metal plate 110. Can be.

In addition, when the LED element 120 further includes a heat slug 124, only the heat slug 124 may be coupled to the metal plate 110 to allow thermal conductivity with the metal plate 110.

In this case, the LED device 120 may be directly coupled to the metal plate 110 as shown in FIGS. 3A to 5.

In this case, only one of the first electrode 121 and the second electrode 122 of the LED element 120 needs to be energized with the metal plate 110. The electrode that is not energized with the metal plate 110 is made of metal. The plate 110 is installed to be electrically insulated.

In detail, the metal plate 110 corresponds to a non-contact electrode in which the other electrode is not thermally conductive so that only one of the first electrode 121 and the second electrode 122 of the LED device 120 is capable of thermal conduction. Contact preventing means 111 may be formed to prevent the contact at the position.

And the contact preventing means 111, as shown in Figure 5, may be formed as a through-hole formed in the metal plate 110, or as shown in Figs.

At this time, the non-contact electrode, as shown in Figure 5, the connection portion of the other LED element or the power supply line 250 for the connection with the power supply line, through-holes, or a portion formed in (7 and 9) Through the incision).

The power connection line 250 may be utilized to maintain the gap between the metal plates 110 arranged in parallel by being connected to each LED element 110 in the first embodiment to be described later. Here, the distance between the metal plates 110 arranged in parallel may be maintained by the gap maintaining member 280 described later.

Meanwhile, when connected to the LED element 120 installed in the adjacent metal plate 110 instead of the power connection line 250, the LED element 120 installed in the adjacent metal plate 110 by a piece of the metal plate 110 of the same material. ) May be electrically connected.

In addition, the contact preventing means 111, as another example, as shown in Figure 6, may be composed of an insulating member 111 formed on the metal plate 110.

The insulating member may be configured in various ways such as an insulating material coated on the surface of the metal plate 110, an attached insulating tape, and the like for electrical insulation between the LED element 120 and the metal plate 110.

Meanwhile, unlike the example of FIG. 5, only the heat slug 124 electrically insulated from the first electrode 121 and the second electrode 122 is coupled to the metal plate 110 to allow thermal conductivity with the metal plate 110. In this case, the LED device 120 is installed so that the first electrode 121 and the second electrode 122 are electrically insulated from the metal plate 110.

In addition, unlike the example of FIG. 5, the LED device 120 may be mounted on a printed circuit board (not shown) coupled to the metal plate 110, instead of being directly coupled to the metal plate 110. In the case of the printed circuit board, similarly to the case in which the LED device 120 is directly coupled to the metal plate 110, any one of the first electrode 121 and the second electrode 122 is thermally conductive with the metal plate 110. It may be coupled to the metal plate 110 to enable.

On the other hand, the LED element 120, a reflector may be installed around the periphery to improve the divergence angle and illumination of light.

Meanwhile, the LED lighting apparatus according to the present invention has a basic structure of a metal plate 110 to which the LED element 120 and the LED element 120 are coupled, and the metal plates 110 are arranged in parallel to each other, For example, the lighting apparatus having various lighting effects may be configured by various arrangement combinations such that some are arranged inclined to each other.

In particular, by configuring a plurality of the basic structure of the LED element 120 and the metal plate 110 coupled to the LED element 120 according to the present invention can be configured to have a lighting effect such as a bulb-type bulb, in particular bulb type It is possible to maximize the utilization effect of LED lighting device by replacing bulb type bulbs with lighting fixtures such as headlights, fog lights and turn signals for automobiles using bulbs.

Hereinafter, an LED lighting apparatus according to the present invention will be described by using an luminaire such as a headlamp, a fog lamp, a turn signal for automobiles.

The LED lighting apparatus according to the first embodiment of the present invention, as shown in Figure 3a to 5, and has a basic structure of the metal plate 110 to which the LED element 120 and the LED element 120 is coupled The metal plate 110 may be configured to include a first metal plate and a second metal plate on which one or more of the LED elements 120 are disposed on opposite surfaces of the metal plates 110 disposed in parallel to each other and facing each other.

One end of the pair of metal plates 110 may be coupled to a structure in which an LED lighting device is installed, that is, a socket 230 for coupling with a vehicle lighting fixture.

Here, the metal plate 110 may be coupled by various methods such as being fixedly coupled to the socket 230 or detachably coupled thereto.

The socket portion 230 may be configured in various ways depending on the structure of the LED lighting device is installed, that is, the coupling aspect with the structure to be installed as a configuration for coupling with the automotive lighting fixture.

As an example, the socket portion 230, the body 231 is detachably coupled to the structure; A terminal connector 240 installed at the body 231 for electrical connection with a connection terminal (not shown) installed in the structure; The device 120 may include an element power supply unit 260 electrically connected to the LED element 120 and the terminal connection unit 240.

The main body 231 may be composed of one or more members as a component for stably coupling the LED lighting device to the structure, and various configurations such as an insulating material or a combination of a metal and an insulating material are possible.

The terminal connection part 240 is installed in the main body 231 and is configured for electrical connection with a connection terminal (not shown) installed in the structure. Various configurations are possible according to the terminal connection method, and in some cases, the main body 231 It can be configured integrally.

The device power supply unit 260 is configured to electrically connect the LED element 120 and the terminal connection unit 240, and according to the connection structure between the terminal connection unit 240 and the LED element 120, a substrate, an electric wire, a conductive member, or the like. Various combinations are possible.

For example, as shown in FIGS. 4A and 4B, the device power supply unit 260 may be coupled to the metal plate 110 to support the metal plate 110 and to be coupled to the terminal connection unit 240. 261, and a connection portion 262 for supplying power to the LED device 120.

The metal plate 110 may be electrically connected to any one of the first electrode and the second electrode of the LED device 120.

The substrate 261 is supported by the metal plate 110 and coupled with the terminal connection unit 240. Various configurations are possible and an insertion hole into which at least one protrusion 119 of the metal plate 110 is inserted ( 261a) is formed, and a circuit pattern for conducting electricity between the terminal connector 240 and the LED element 120 is formed.

In addition, the substrate 261 may form part or the entirety of the main body 231 forming the socket part 230.

The connection portion 262 is a portion for supplying power to the LED element 120, as shown in Figures 4a and 4b, the solder portion, as shown in Figures 7 to 10, various configurations such as wires This is possible.

Meanwhile, as another configuration of the device power supply unit 260, as illustrated in FIGS. 7 to 10, a plurality of terminal units 265 electrically connected to the terminal connection unit 240 are formed and coupled to the main body 231. The substrate 261 supporting the metal plate 110 may include one or more wires 263 connecting the LED element 120 and the terminal unit 265 to each other.

Here, the electric wire 263 may be any electric conductive member such as a copper wire or an iron wire, in addition to a used electric wire in which copper wires are installed in a synthetic resin.

In particular, the wire 263 is more preferably copper, copper alloy material for heat dissipation in itself, and more preferably formed without coating of an insulating material on the outer surface.

Meanwhile, when one structure of the LED lighting device is installed at one end of the pair of metal plates 110, that is, when the socket part 230 for coupling with a vehicle lighting fixture is coupled, the other end of the pair of metal plates ( A gap maintaining member 280 may be additionally installed to maintain the gap between the gaps 110.

The gap maintaining member 280 is a configuration for maintaining a stable gap between the pair of metal plates 110, the through hole 281 into which the metal plate 110 can be inserted as an insulating member, such as a synthetic resin, PCB. The formed metal plate 110 may be inserted and fixedly coupled to the pair of metal plates 110.

On the other hand, the pair of metal plates 110, if coated with a material such as epoxy paint is electrically insulated bar may be installed to be interviewed with each other.

On the other hand, in the LED lighting apparatus according to the first embodiment of the present invention, the arrangement and position of the LED element 120 may vary depending on the characteristics of the bulb-shaped bulb of the luminaire to be replaced.

Specifically, the LED lighting apparatus according to the first embodiment of the present invention, is installed in any one of the headlight, fog light, direction indicator and tail light of the vehicle is installed bulb-shaped bulb, the LED element 120 is shown in Figure 4a As shown, when the bulb-type bulb is installed in the vehicle can be coupled to the metal plate 110 to be located at a position corresponding to the position of the light emitting portion, that is, the filament of the bulb-type bulb.

Specifically, in order to correspond to the distance l from the socket portion 12 to the light emitting portion 11 in the bulb bulb, the LED element 120, the distance (l) from the socket portion 230 in the metal plate 110 It can be installed to have.

On the other hand, the LED lighting device according to the present invention, when installed in any one of the headlight, fog light, direction indicator light and taillight of the vehicle in which the bulb-type bulb is installed, according to the light emitting structure, the light emission characteristics of the lighting fixture to be installed It is necessary to increase the light emission characteristics or to increase the light emission characteristics in the front direction.

Accordingly, the LED lighting apparatus according to the second and third embodiments of the present invention, in addition to the configuration of the first embodiment, as shown in Figure 7 to Figure 10, the mounting surface portion 112 is provided with the LED element 120 ) And one or more bent metal plates 110-1 including the bent surface portion 113 that is bent and extended with the installation surface portion 112.

At this time, as the second embodiment, when the coupling direction with the socket portion 230 in the longitudinal direction, the bent metal plate 110-1, as shown in Figs. 7 and 8, the installation surface portion 112 It may include one or more first bent metal plate perpendicular to the longitudinal direction, that is, the light emitting surface of the LED element 120 toward the side.

Further, as a third embodiment, when the engagement direction with the socket portion 230 in the longitudinal direction, the bent metal plate 110-1, the normal of the mounting surface portion 112 is parallel to the longitudinal direction, that is, The light emitting surface of the LED device 120 may include one or more second bent metal plates facing forward.

Meanwhile, when the metal plate 110 and the LED elements 120 are configured in plural, the equivalent circuits may be configured with various equivalent circuits such as a series, parallel, series-parallel combination based on each LED element 120.

Here, the metal plate 110 may be energized with a portion of an equivalent circuit, that is, any one of the first electrode and the second electrode of the LED element 120.

On the other hand, the LED lighting apparatus according to the present invention, it is possible to implement a variety of lighting effects by providing a plurality of metal plates installed with LED elements and by changing the relative position of the LED elements installed on each metal plate.

Hereinafter, the LED lighting apparatus according to the fourth embodiment will be described with reference to FIGS. 11 to 15. Here, the LED lighting apparatus according to the fourth embodiment is different in some configurations such as the arrangement of the metal plate, and the same or similar components as those in the first to third embodiments described above will be omitted for convenience.

LED lighting device according to a fourth embodiment of the present invention, as shown in Figure 11 to 15, the socket portion 230 for coupling with the structure to be installed LED lighting device; A pair of first metal plates 110-5, one end of which is coupled to the socket part 230 and each of which has a first LED element 120a disposed on opposite surfaces of the surfaces facing each other; Between the pair of first metal plates 110-5 parallel to the pair of first metal plates 110-5, one end of which is coupled to the socket portion 230 and on the opposite surface of the surface facing each other. A pair of second metal plates 110-6 each having a second LED element 120b installed thereon; In parallel with the pair of second metal plates 110-6 between the pair of second metal plates 110-6, one end thereof is coupled to the socket part 230, and the second metal plate 110-6 is parallel to the pair of second metal plates 110-6. At least one third metal plate 110-6 having a bent surface portion 113 bent to be perpendicular to 6) and having a third LED element 120c installed at the bent surface portion 113; And a spacing member 280 to which the other ends of the first to third metal plates are coupled to maintain the spacing between the first to third metal plates.

The first LED element 120a and the second LED element 120b are preferably provided with different distances from the socket 280 so as to be positioned at positions corresponding to the two light sources.

In addition, the first metal plate 110-5 has a cutout portion 310 formed therein so that the second LED element 120b installed on the second metal plate 110-6 positioned therein can be exposed to the outside. Can be.

In addition, the LED lighting device may be installed in the headlights of the automobile in place of the bulb having two filaments to enable the upper and lower lights by one bulb.

At this time, any one of the first LED element 120a and the second LED element 120b may be located at the position of the filament corresponding to the uplight, and the other may be located at the position of the filament corresponding to the downlight.

In addition, the vehicle headlight having a structure that can be up and down by one LED lighting device, includes a reflective member of a suitable structure to enable the down and up lights by one LED lighting device.

In addition, the socket part 230 may include a first terminal 237 and a first terminal 237 which connects any one of the first LED element 120a and the second LED element 120b and the third LED element 120c in series or in parallel. Two terminals 238; A third terminal 239 installed in the socket 230 to connect the second terminal 238 and the other of the first LED element 120a and the second LED element 120b in series may be further installed. Can be.

By sharing the second terminal 238 and the power connected to at least one of the first terminal 237 and the third terminal 239 by the configuration as described above, the first LED element (120a) and the first Independent on / off of each of the 2 LED elements 120b is possible.

Accordingly, any one of the first LED element 120a and the second LED element 120b, for example, the second LED element 120b and the third LED element 120c corresponds to a downward direction and the first LED element 120a ) And the second LED element 120b, for example, the first LED element 120a may correspond to an uplight to enable various lighting effects such that the uplight may be turned on or off according to independent on / off.

On the other hand, in the case of headlights of automobiles capable of functioning high and low light by one LED lighting device, the reflecting member is divided up and down, and the upper side functions as a reflecting member for the role of the lower light and the lower side as a reflecting member for the role of the high light. Function.

However, when one of the first LED element 120a and the second LED element 120b corresponds to the downward direction of the second LED element 120b and the third LED element 120c, for example, the third LED element 120c has a structure in which the generated light is directed upward, and faces the downlight region, but the second LED element 120b is an uplight region when the light functions downward toward the downlight region and the uplight region according to the emission angle of the device. There is a problem that some light is exposed.

Therefore, the LED lighting apparatus according to the fifth embodiment of the present invention, as shown in Figure 16 to 17b, the element corresponding to the down light of the first LED element 120a and the second LED element 120b, for example For example, the second LED device 120b may further include a light blocking member 390 for preventing the light from being irradiated to the upper light region.

The light blocking member 390 is one of the first LED element 120a and the second LED element 120b that the light corresponding to the downlight, for example, the light of the second LED element 120b is irradiated to the upper light region. Various configurations are possible as the configuration for preventing.

Here, the light blocking member 390 is a light of the first LED element 120a and the second LED element 120b corresponding to the downlight, for example, the light of the second LED element 120b is irradiated to the upper light area. It is formed to a size that can prevent it.

In addition, the light blocking member 390, as shown in Figures 16 to 17b, is preferably installed on the metal plate (110-5) located at the outermost.

In addition, as shown in FIGS. 16 to 17B, the light blocking member 390 is installed at the outermost metal plate 110-5, and the outermost metal plate 110-5 is disposed. A portion of the plate-like plate member may be formed at an angle, for example, 90 °, in a structure integrated in the plate member.

In addition, the light blocking member 390, in order to minimize the light reflection, the surface facing the second LED element 120b is preferably matte, it is preferably painted in black.

On the other hand, in the LED lighting apparatus according to the fourth embodiment and the fifth embodiment, as in the first to third embodiments, the first to

third LED elements

120a, 120b, 120c, the first electrode and the Only one of the two electrodes may be coupled to each of the first to third metal plates to enable thermal conductivity.

In addition, as in the first to third embodiments, the first to third metal plates may have thermal conductivity of only one of the first electrode and the second electrode of each of the first to

third LED elements

120a, 120b, and 120c, respectively. The contact preventing means for preventing the contact may be formed at a position corresponding to the non-contact electrode that is not made the heat conduction, the remaining electrode.

The non-contact electrode may be connected to a terminal of another LED element or a power supply line for connection with a power supply line through the through hole or cutout.

On the other hand, the LED lighting apparatus according to the first to the fifth embodiment, there is a problem that each LED element can not be positioned at the optimum position of the pre-designed reflection shade while the gap between the metal plate on which the LED element is installed is increased.

In particular, in the second to fifth embodiments, the LED element positioned at the outermost side with respect to the metal plate positioned at the center may not be positioned at an optimal position of the predesigned reflection shade.

In the following description of the LED lighting apparatus according to the sixth embodiment of the present invention, only the components different from the first embodiment will be described, and the same or similar components as those of the first embodiment will be omitted for convenience of description.

The LED lighting apparatus according to the sixth embodiment of the present invention, as shown in Figure 18 to Figure 21c, as a modification of the first embodiment, the metal plate 110 to which the LED element 120 and the LED element 120 is coupled On the other hand, the metal plate 110 includes a first metal plate and a second metal plate disposed in parallel with each other and one or more LED elements 120 are installed on opposite sides of the surfaces facing each other.

And the LED lighting apparatus according to the sixth embodiment of the present invention, a pair provided at intervals with each of the first metal plate and the second metal plate so that the LED element 120 is exposed from the surface side where the LED element 120 is installed Cover metal plate 910 of the.

As illustrated in FIGS. 21A and 21C, each of the pair of covered metal plates 910 includes a first metal plate and a second metal plate such that the LED elements 120 are exposed from the surface on which the LED elements 120 are installed. Various configurations are possible as the configuration is installed at intervals.

In particular, the pair of covered metal plates 910 may be formed with an opening 911 such that the LED device 120 is exposed from the surface on which the LED device 120 is installed.

The opening 911 is formed in the cover metal plate 910 so that the LED element 120 is exposed from the surface on which the LED element 120 is installed.

Meanwhile, the pair of covered metal plates 910 are connected to the front and rear ends of the first metal plate and the second metal plate and are generated in the LED device 120 installed at each of the first metal plate and the second metal plate. Will release heat.

In this case, an incision line 913 is formed near the boundary between the cover metal plate 910 and the first metal plate, and the boundary between the cover metal plate 910 and the second metal plate to bond the substrate 261. The protrusion 119 may be further formed.

Here, the substrate 261 is formed with one or more through holes into which the protrusion 119 may be inserted.

The protrusions 119 naturally form when bent at each other at the boundary between the covering metal plate 910 and the first metal plate, and at the boundary between the covering metal plate 910 and the second metal plate.

Meanwhile, the pair of covered metal plates 910 may have protrusions 914 formed at opposite sides of the first metal plate and the second metal plate to be coupled to the space keeping member 280. In this case, each of the first metal plate and the second metal plate may have a protrusion 915 for coupling with the spacer 280.

The pair of covered metal plates 910 may be integrated with the first metal plate and the second metal plate to more efficiently discharge heat generated from the LED device 120 to increase light emission characteristics of the LED device. .

In addition, the pair of covered metal plates 910, the end of the gap holding portion (971) protruding bent from the first metal plate and the second metal plate in order to maintain the gap between the first metal plate and the second metal plate. The insertion opening 972 may be formed.

Meanwhile, the first metal plate and the second metal plate on which the LED elements 120 are installed face each other, and heat generated from each of the LED elements 120 is transferred to each other, and thus, a heating effect needs to be prevented.

Therefore, an intermediate metal plate 930 installed in parallel with the first metal plate and the second metal plate may be additionally installed between the first metal plate and the second metal plate.

The intermediate metal plate 930 is installed between the first metal plate and the second metal plate to block heat transfer from each other, and preferably has the same material as the first metal plate and the second metal plate. .

Meanwhile, the intermediate metal plate 930 may have a cutout portion 931 in which portions of the intermediate metal plate 930 are cut in correspondence with portions where the LED elements are installed in the first metal plate and the second metal plate.

In addition, the intermediate metal plate 930 may be formed with one or more protrusions 939 to be inserted and fixed in the through hole formed in the substrate 261.

In addition, the first metal plate and the second metal plate, the covered metal plate 910 and the intermediate metal plate 930, it is to be coated in black with a material such as black epoxy paint to maximize the heat dissipation effect desirable.

In particular, the first metal plate, the second metal plate, the covered metal plate 910 and the intermediate metal plate 930, a black epoxy coating coating experiments as a result was confirmed that the heat dissipation effect is much higher.

Herein, the matter coated in black on the surface of the metal plate is applied to the first to eighth embodiments, of course.

On the other hand, the LED lighting device having the structure as described above, when the heat dissipation is not smooth, the lighting effect of the LED element 120 is reduced, the fan 940 may be additionally installed to increase the lighting effect.

The fan 940 is preferably installed in a direction perpendicular to the plane of the metal plate 110 to generate air flow to cool the LED element 120.

In this case, the metal plate 110, that is, the first metal plate, the second metal plate, the covered metal plate 910, and the intermediate metal plate 930 may include

openings

921, 922, and 923 for installing the fan 940. Can be formed.

The

openings

921, 922, and 923 are formed for the installation of the fan 940 and may have various shapes such as a hole shape or an opening groove shape.

In addition, the fan 940 is installed at the front or rear of the LED element 120 in the longitudinal direction connecting the front and rear ends of the metal plate 110, or as shown in Figure 18 to 20, 120 may be installed on the lower side.

In the LED lighting apparatus according to the sixth exemplary embodiment having the above configuration, the LED device 120 is minimized by minimizing a gap between the metal plate 110 having the LED device 120, that is, the first metal plate and the second metal plate. ) Can be positioned at the optimum position of the predesigned reflector.

In the following description of the LED lighting apparatus according to the seventh embodiment of the present invention, only the components different from the first embodiment will be described, and the same or similar components as those of the first and sixth embodiments, in particular the sixth embodiment The description is omitted for convenience of description.

The LED lighting apparatus according to the seventh embodiment of the present invention, as shown in Figures 22 to 25C, as a modification of the sixth embodiment, the metal plate 110 to which the LED element 120 and the LED element 120 is coupled On the other hand, the metal plate 110 includes a first metal plate and a second metal plate disposed in parallel with each other and one or more LED elements 120 are installed on opposite sides of the surfaces facing each other.

In addition, the LED lighting apparatus according to the seventh embodiment of the present invention is formed integrally with each of the first metal plate and the second metal plate on the side where the LED element 120 is installed and a pair of bent in a 'V' shape. Heat-dissipating metal plates 950.

The pair of heat-dissipating metal plate 950 is, as shown in Figure 25a and 25c, is provided with a spaced apart from each of the first metal plate and the second metal plate on the surface side on which the LED element 120 is installed Various configurations are possible.

In particular, the pair of heat-dissipating metal plate 950 is preferably formed short so as not to interfere with the illumination of the LED element 120 on the side of the LED element 120 is installed.

Here, the heat dissipation metal plate 950 is formed integrally with the first metal plate and the second metal plate to which the LED device 120 is coupled, so as to increase the heat dissipation effect, the first metal plate and the second metal plate as necessary. Various modifications are possible, such as being in close contact with or forming a long length.

On the other hand, the pair of heat-dissipating metal plate 950 is generated in the LED element 120 installed on each of the first metal plate and the second metal plate by being integrally connected to the front or rear ends of the first metal plate and the second metal plate. Will release heat.

In this case, an incision line 953 is formed near the boundary between the heat-dissipating metal plate 950 and the first metal plate, and the boundary between the heat-dissipating metal plate 950 and the second metal plate to bond the substrate 261. The protrusion 119 may be further formed.

The protrusion 119 is naturally formed when bent to each other at the boundary between the heat dissipation metal plate 950 and the first metal plate, and the boundary between the heat dissipation metal plate 950 and the second metal plate.

The protrusion 119 may be inserted into and fixed to the substrate 261 that supports the metal plate 110 and is coupled to the terminal connector 240.

Meanwhile, only one cut line 953 and one protrusion 119 may be formed, but as shown in FIGS. 22 to 25C, two cut lines 953 and the protrusion 119 may be more stably supported and fixed to the substrate 261.

The pair of heat-dissipating metal plates 950 may be integrally connected with the first metal plate and the second metal plate to more efficiently discharge heat generated from the LED device 120 to increase light emission characteristics of the LED device. .

Meanwhile, the first metal plate and the second metal plate on which the LED elements 120 are installed face each other, and heat generated from each of the LED elements 120 is transferred to each other, and thus a heating effect needs to be prevented.

The first metal plate and the second metal plate, the heat-dissipating metal plate 950 and the intermediate metal plate 930 are coated in black with a material such as black epoxy paint to maximize the heat dissipation effect. desirable.

In particular, the first metal plate, the second metal plate, the heat-dissipating metal plate 950 and the intermediate metal plate 930, the coating of black epoxy paints, the experiment was confirmed that the heat dissipation effect is much higher.

In this case, the metal plate 110, that is, the first metal plate, the second metal plate, the heat-dissipating metal plate 950, and the intermediate metal plate 930 are

openings

921, 922, and 923 for installing the fan 940. Can be formed.

The

openings

In addition, the fan 940 is installed at the front or rear of the LED element 120 in the longitudinal direction connecting the front and rear ends of the metal plate 110, or as shown in Figs. 22 to 25C, 120 may be installed on the lower side.

On the other hand, in the seventh embodiment of the present invention, it shows an example in which two LED elements 120 are installed, the number and location of the installation may be variously set according to the characteristics of the reflection shade used.

In addition, the electrode which is not coupled to the metal plate 110 among the electrodes of the LED element 120 is an auxiliary member that is separated from the metal plate 110 after the attachment of the LED element 120 in the manufacturing process of the metal plate 110 to be described later The power supply line (not shown) connected to the 960 and the auxiliary member 960 is connected to the terminal connector 240 or the terminal connector 240 through the substrate 261.

In the LED lighting apparatus according to the seventh exemplary embodiment having the above configuration, the LED device 120 is minimized by minimizing a gap between the metal plate 110 on which the LED device 120 is installed, that is, the first metal plate and the second metal plate. ) Can be positioned at the optimum position of the predesigned reflector.

In particular, the LED lighting apparatus according to the seventh embodiment may be installed in the headlight of the automobile in place of the bulb having two filaments to enable the up and down light by one bulb.

That is, the LED lighting apparatus according to the seventh embodiment is installed in a vehicle headlight instead of a light bulb having two filaments so as to enable up and down light by one light bulb, and the first LED element 120a and the One of the second LED elements 120b may be positioned at the position of the filament corresponding to the uplight, and the other may be positioned at the position of the filament corresponding to the downlight. At this time, each of the first LED plate and the second metal plate is provided with two LED elements of the first LED element 120a and the second LED element 120b.

The first LED element 120a and the second LED element 120b are installed in the first metal plate and the second metal plate, respectively, at different distances from the socket part 230 so as to be positioned at positions corresponding to the two light sources. This is preferred.

That is, any one of the first LED element 120a and the second LED element 120b may be located at the position of the filament corresponding to the uplight, and the other may be positioned at the position of the filament corresponding to the downlight.

In addition, the vehicle headlight having a structure that can be up and down by one LED lighting device, may include a light blocking member or a reflective member of a suitable structure to enable the down and up lights by one LED lighting device.

In the following description of the LED lighting apparatus according to the eighth embodiment of the present invention, only the components different from the first embodiment will be described, and the same or similar configuration as the first to seventh embodiments, in particular the seventh embodiment These are omitted for convenience of explanation.

In the LED lighting apparatus according to the eighth embodiment of the present invention, as shown in FIGS. 26 to 32, as a modification of the seventh embodiment, the LED device 120 and the LED device 120 are combined with the metal plate 110. On the other hand, the metal plate 110 is arranged in parallel with each other, the first metal plate (110-a) and the second metal is provided with at least one LED element 120 on the opposite side of the surface facing each other Plate 110-b.

In addition, the LED lighting apparatus according to the eighth embodiment of the present invention is formed integrally with each of the first metal plate 110-a and the second metal plate 110-b on the side where the LED element 120 is installed. It includes a pair of heat-radiating metal plates 950 bent in the U 'shape.

The first metal plate 110-a and the second metal plate 110-b have a structure similar to that of the metal plates of the first to seventh embodiments described above. When the opposite side is the outer side, the LED element 120 may be provided in one or more on the outer side.

Each of the first metal plate 110-a and the second metal plate 110-b includes an LED element 120 to block light to prevent the light emitted from the LED element 120 from being directed downward or upward. The

light blocking portions

975 and 976 installed at either one of the upper side and the lower side of) may be combined.

The

light blocking portions

975 and 976 are installed on either one of the upper and lower portions of the LED element 120 to be blocked to prevent the light emitted from the LED element 120 from being directed downward or upward. Various configurations are possible with the configuration.

In particular, the

light blocking portions

975 and 976 may be integrally formed at the time of forming the first metal plate 110-a and the second metal plate 110-b for the convenience of manufacture thereof. To increase, it can be bent at an appropriate angle such as 90 °.

Here, the

light blocking portions

975 and 976 may be combined with an adhesive or the like as a separate member instead of being formed integrally with the first metal plate 110-a and the second metal plate 110-b. .

In addition, the

light blocking parts

975 and 976 may not be coated with a black paint or a material having a high reflectance in consideration of a reflection effect in addition to the light blocking effect.

In addition, the

light blocking portions

975 and 976 may be formed with a plurality of through holes to bend easily when integrally formed with the first metal plate 110-a and the second metal plate 110-b. .

Meanwhile, when two or more LED devices 120 are installed on the first metal plate 110-a and the second metal plate 110-b, the light blocking unit 975 is provided only for at least some of the LED devices 120b. 976 may be installed.

In particular, when two LED elements 120 are installed in the first metal plate 110-a and the second metal plate 110-b, one LED element, for example, is located far from the socket portion 230.

Light blocking portions

975 and 976 may be provided only for the 120b.

As shown in FIGS. 29A and 29C, the pair of heat-dissipating metal plates 950 may include a first metal plate 110-a and a second metal plate 110-b on a surface where the LED element 120 is installed. A variety of configurations are possible as the components are installed at intervals from each other.

On the other hand, the pair of heat-dissipating metal plate 950 is connected to the front end or the rear end of the first metal plate 110-a and the second metal plate 110-b by being integrally connected to the first metal plate 110-a. And heat generated from the LED elements 120 installed on the second metal plates 110-b, respectively.

In this case, an incision line 953 is formed near the boundary between the heat dissipating metal plate 950 and the first metal plate 110-a and the boundary between the heat dissipating metal plate 950 and the second metal plate 110-b. One or more protrusions 119 may be further formed to be inserted into the substrate 261.

The protrusions 119 may be bent at each other at the boundary between the heat dissipating metal plate 950 and the first metal plate 110-a, and at the boundary between the heat dissipating metal plate 950 and the second metal plate 110-b. When it is formed naturally.

In particular, the protrusion 119 may be used as a connection terminal connected to the power connection line 250 to supply power to the LED element 120.

Meanwhile, one or more incision lines 953 and protrusions 119 may be formed.

The pair of heat dissipation metal plates 950 are connected to the first metal plate 110-a and the second metal plate 110-b, respectively, so that the heat generated from the LED element 120 may be more efficiently. By emitting the light emitting characteristics of the LED device can be improved.

Meanwhile, the pair of heat-dissipating metal plates 950 are connected to the first metal plate 110-a and the second metal plate 110-b, respectively, in FIGS. 26, 28, and 29a to 29a. As shown in 29c, a surface contact portion 958 may be formed in two places to be in surface contact with the substrate 261.

The surface contact portion 958 is a portion in which each of the pair of heat-dissipating metal plates 950 is integrally connected to the first metal plate 110-a and the second metal plate 110-b. Surface contact with the first metal plate 110-a and the second metal plate 110-b may be stably coupled to the substrate 261.

In particular, the surface contact portion 958 may have a screw hole 957 formed therein so that a screw (not shown) may penetrate and be screwed to at least one of the substrate 261 and the socket 260.

By the screw coupling as described above, the first metal plate 110-a and the second metal plate 110-b are installed at a predetermined angle based on at least one of the substrate 261 and the socket 260. The LED element 120 may be positioned in a predesigned position.

Meanwhile, the pair of heat dissipating metal plates 950 may be installed at intervals from each of the first metal plate 110-a and the second metal plate 110-b, but the ends thereof may be disposed at the first metal plate ( It may be bent or touched close to the surface of the 110-a) and the second metal plate (110-b).

On the other hand, the first metal plate 110-a and the second metal plate 110-b provided with the LED elements 120 face each other, so that the heat generated from each of the LED elements 120 is transferred to each other, thereby providing a heating effect. It is necessary to prevent this.

Therefore, an intermediate metal plate installed in parallel with the first metal plate 110-a and the second metal plate 110-b between the first metal plate 110-a and the second metal plate 110-b. 930 may be further installed.

The intermediate metal plate 930 is installed between the first metal plate 110-a and the second metal plate 110-b to block the transfer of heat to each other. It is preferable to have the same material as a) and the second metal plate 110-b.

Meanwhile, the intermediate metal plate 930 corresponds to a portion in which the LED elements 120 are installed in the first metal plate 110-a and the second metal plate 110-b, and a portion thereof is partially cut out 931. Can be formed.

Specifically, the cutout 931 may have the same outline as the outline of at least some of the portions in which the LED elements 120 are installed among the first metal plate 110-a and the second metal plate 110-b. Can be formed.

In addition, the intermediate metal plate 930 may include an inner surface of the first metal plate 110-a and the second metal plate 110-b so that the LED element 120 may be positioned at an optimal position of the predesigned reflection shade. It is preferable to be in close contact with.

In addition, the intermediate metal plate 930 may be adhered by an adhesive material having high heat resistance when in close contact with inner surfaces of the first metal plate 110-a and the second metal plate 110-b.

In addition, the intermediate metal plate 930 is formed in the through hole 261b formed in the substrate 261 in close contact with the inner surfaces of the first metal plate 110-a and the second metal plate 110-b. Preferably, the protrusion 939 to be inserted is formed.

The protruding portion 939 is inserted into the through hole 261b formed in the substrate 261, so that the protrusion 939 is in close contact with the inner surfaces of the first metal plate 110-a and the second metal plate 110-b. The 930 may be stably supported by the substrate 261.

In addition, the through hole 261b is preferably formed in a slot shape so that the protrusion 939 having a plate shape can be inserted therein.

Meanwhile, the first metal plate 110-a and the second metal plate 110-b, the heat dissipating metal plate 950, and the intermediate metal plate 930 may be formed of a black epoxy paint to maximize heat dissipation effect. It is preferable to coat black with the same material.

In particular, the first metal plate (110-a), the second metal plate (110-b), the heat-dissipating metal plate (950) and the intermediate metal plate (930), the heat dissipation as a result of experiments by coating a black epoxy paint The effect was found to be much higher.

Meanwhile, the first metal plate 110-a, the second metal plate 110-b, and the intermediate metal plate 930 block light in order to block light toward the front side from the opposite end coupled to the substrate 261. Member 973 may be further coupled.

The light blocking member 973 may be used in various ways, such as to block the light of the LED device 120 from being directly irradiated to the front.

The substrate 261 is similar in construction to those of the first to seventh embodiments.

In detail, the substrate 261 may have a structure that may be coupled to the socket 230, and one or more screw holes 261e may be formed to be coupled to the socket 230.

In addition, the substrate 261 may have a through hole 261b into which the protrusion 939 of the intermediate metal plate 930 is inserted.

In addition, the substrate 261 may be formed with one or more screw holes 261c that are screwed with screws passing through the screw holes 957 formed in the surface contact portion 958.

In addition, the substrate 261 may include an insertion hole 261a into which the protrusion 119 described above is inserted.

The insertion hole 261a may have any structure as long as the protrusion 119 is inserted into the protrusion 119 formed in the surface contact portion 958.

In addition, after the protrusion 119 is inserted into the insertion hole 261a, the protrusion 119 may be connected to the power connection line 250 and used as a connection terminal for supplying power to the LED element 120.

In this case, the protrusion 119 may be inserted into the insertion hole 261a and then fixed and soldered with the power connection line 250.

On the other hand, the LED lighting device having the structure as described above, when the heat dissipation is not smooth, the lighting effect of the LED element 120 is reduced, a fan (not shown) may be additionally installed to increase the lighting effect.

The fan is preferably installed in a direction perpendicular to the plane of the metal plate 110 to generate air flow to cool the LED element 120.

In this case, the metal plate 110, that is, the first metal plate 110-a, the second metal plate 110-b, the heat dissipating metal plate 950, and the intermediate metal plate 930 are openings for installing a fan. (Not shown) may be formed.

The opening is formed for the installation of the fan and may have various shapes such as a hole shape or an opening groove shape.

In addition, the fan is installed in the front or rear of the LED element 120 in the longitudinal direction connecting the front and rear ends of the metal plate (110-a, 110-b), or as shown in Figure 26 to 29c, It may be installed on the lower side of the LED element 120.

On the other hand, in the eighth embodiment of the present invention, it shows an example in which two LED elements 120 are installed, the installation number and position can be variously set according to the characteristics of the reflection shade used.

In addition, the electrodes that are not coupled to the metal plates 110-a and 110-b of the electrodes of the LED device 120 may be formed in the process of manufacturing the metal plates 110-a and 110-b to be described later. After attaching to the terminal member 240 or through the substrate 261 by a power supply line (not shown) connected to the auxiliary member 960 and the auxiliary member 960 separated from the metal plates 110-a and 110-b. It may be connected to the terminal connector 240.

Here, the auxiliary member 960, as shown in Figs. 26, 27 and 32, is utilized only for the electrical connection of the LED element 120, as described above, the protrusion formed on the surface contact portion 958 ( The power connection line 250 is connected to the 119 may be utilized as a connection terminal for supplying power to the LED element 120.

In particular, the auxiliary member 960 coupled to the first metal plate is electrically connected to the auxiliary member 960 and the solder 938 coupled to the second metal plate, as shown in FIGS. 26 and 27. LED devices 120 installed on the first metal plate and the second metal plate may be connected in series.

In addition, the auxiliary member 960 may be formed with a plurality of through holes 968 to increase the heat dissipation effect.

In the LED lighting apparatus according to the eighth embodiment having the configuration as described above, the LED device 120 by minimizing the distance between the metal plate 110, that is, the first metal plate and the second metal plate on which the LED element 120 is installed. ) Can be positioned at the optimum position of the predesigned reflector.

In particular, the LED lighting apparatus according to the eighth embodiment, similar to the seventh embodiment, may be installed in the vehicle headlights in place of the bulb having two filaments to enable the up and down lights by one bulb.

That is, the LED lighting apparatus according to the eighth embodiment is installed in the vehicle headlamp instead of the bulb having two filaments to enable the uplight and the downlight by one light bulb, the first LED element (120a) and the first One of the two LED elements 120b may be located at the position of the filament corresponding to the uplight, and the other may be located at the position of the filament corresponding to the downlight. In this case, two LED elements, that is, the first LED element 120a and the second LED element 120b are installed in each of the first metal plate 110-a and the second metal plate 110-b.

In addition, the first LED element 120a and the second LED element 120b may have different distances from the socket 230 so that the first LED element 120a and the second LED element 120b are located at positions corresponding to the two light sources. Preferably, the two LED elements 120b are provided.

In addition, the vehicle headlight having a structure that can be up and down by one LED lighting device, may include a light blocking unit (975, 976) of the appropriate structure to enable the down and up lights by one LED lighting device. have.

The

light blocking portions

975 and 976 have the configuration as described above, and are installed directly below the LED element 120b to block light to prevent the light emitted from the LED element 120b from being directed downward. Various configurations are possible with the configuration.

In particular, the

light blocking parts

975 and 976 may further include vertical extension parts 975a and 976b extending vertically to prevent light from being exposed to the side of the LED device 120b.

The vertical extension parts 975a and 976b may be separately installed in a 'b' shape in a configuration extending upward from the

light blocking parts

975 and 976 provided directly below the LED element 120b, or may be separately provided with a light blocking part ( 975, 976) and various configurations are possible.

In particular, the vertical extension parts 975a and 976b extend upward between the first LED element 120a and the second LED element 120b.

On the other hand, in the case of the headlights of the automobile, the light emitting region of the halogen bulb which is the light source together with the structure of the reflector is designed to be formed further downward when viewed from the front of the vehicle.

Accordingly, in order to reflect the above characteristics when the LED lighting apparatus according to the present invention is installed in the headlight of the vehicle, as shown in FIGS. 33 to 35, the substrate 261 when viewed from the front of the vehicle in the state of being mounted on the automobile The metal plate 110 coupled to the metal plate 110, that is, the first metal plate 110-a, the second metal plate 110-b, and the intermediate metal plate 930 have a predetermined angle θ in the clockwise direction thereof. It is preferable to be installed to have.

In other words, when the LED device 120 installed on the metal plate 110 is viewed from the front of the vehicle when the LED device 120 is mounted on the car, the LED device 120 is the metal plate 110, that is, the first metal plate 110-a. ) And the installation angle of the surface of the second metal plate 110-b is preferably installed to have a predetermined angle θ in the clockwise direction than the horizontal line.

On the other hand, the metal plate 110, which is coupled to the substrate 261 when viewed from the front of the vehicle in the state of being mounted on the vehicle, the surface of the constant angle (θ) in the clockwise direction, preferably 5 ° ~ 10 °, 8 It is more preferable that it is °.

Herein, the substrate 261 includes a metal plate 110 in which a through hole 261b into which the metal plate 110, in particular, the intermediate metal plate 930 is inserted, is coupled to the substrate 261. ) Is preferably formed of a slot whose surface is rotated in a clockwise direction at an angle θ, preferably 5 ° to 10 °, more preferably 8 °.

In addition, the screw holes 261e formed in the substrate 261 and for coupling with the socket 260 are formed in a horizontal direction in pairs.

In addition, the insertion hole 261a and the screw hole 261c related to the installation state of the metal plate 110 have a metal plate 110 coupled to the substrate 261 similar to the through hole 261b. It is preferably formed as a slot rotated in a clockwise direction at an angle θ, preferably 5 ° to 10 °, more preferably 8 °.

Meanwhile, the metal plate used in the LED lighting apparatus according to the first to eighth embodiments of the present invention may be manufactured by the following method.

Hereinafter, the LED lighting apparatus according to the sixth embodiment will be described with reference to the manufacturing method of the LED lighting apparatus according to the present invention.

As shown in Fig. 36A, a metal sheet 0 made of copper or copper alloy is prepared.

And as shown in Figure 36b, the upper surface and leaving the edge portion of the shape of the metal plate (110, 910, 930) to be formed in the shape of the metal plate (110, 910, 930) to be used for the metal sheet (0) An anti-etching film is formed on the bottom surface.

At this time, in consideration of mass production, an anti-etching film is formed on the metal sheet 0 to form a plurality of metal plates or a plurality of

metal plates

110, 910, and 930.

At this time, the anti-etching film prevents the

metal plates

110, 910, and 930 from being completely separated by etching in a subsequent etching process by forming the plurality of bridges 961.

The

metal plates

110, 910, 930 can be separated separately during subsequent processing.

In addition, a portion of the electrode of the LED element 120 coupled to the

metal plates

110, 910, and 930 corresponds to a portion corresponding to the non-contact electrode not coupled to the metal plate, and corresponds to the auxiliary member 960 separated from the metal plate. It is preferable that the etching prevention film is also coated.

When the auxiliary member 960 is formed together with the metal plate 110 on the metal sheet, the soldering member is attached in the soldering member attaching process described later, and then coupled to the metal plate of the LED elements through the LED element bonding process, that is, energization. Non-contact electrodes can be combined.

In this case, the auxiliary member 960 is not completely separated by an etching process and is maintained in a state of being connected to the metal plate 110 by at least one bridge 961.

When the non-contact electrode is coupled to the auxiliary member 960 by the soldering member as described above, when the metal plate is separated and then assembled for the manufacture of the LED lighting device, the power supply for the connection with the terminals of the other LED elements described above or the power supply line There is an advantage in that the connection line 250 is easily connected (see FIGS. 5 and 18).

After forming the anti-etching film on the top and bottom of the metal sheet (0) and then immersed in an etchant such as acid, the portions where the anti-etching film is not formed are corroded to form

metal plates

110, 910, and 930 to be used.

After the etching process, the metal sheet 0 may be coated with silver, nickel, or the like after removal of the protective film. In particular, plating with nickel is most preferable. However, the heat dissipation of the heat of the metal plate 110 by nickel plating may be prevented and may be used without nickel plating.

As shown in FIG. 36C, the metal sheet 0 which has undergone the etching process and the plating process may be soldered only to a position where the LED element 120 is to be bonded, that is, a certain region (the region shown in black in FIG. 24). A partition line may be printed which partitions the solder joint area (the area marked in black in FIG. 24) so that it can be printed.

On the other hand, the metal sheet (0) through the etching process, plating process, the soldering member is attached to the position where the LED element is coupled so that the LED element 120 can be coupled.

Here, the method of attaching the soldering member is a method in which a laser is used as a factory, an opening is formed only at the position where the LED element 120 is to be coupled, and a soldering member mixture in which a soldering member such as solder is mixed with a binder in a powder form through the opening is made of metal. It can be attached on the sheet.

Meanwhile, as shown in FIG. 36D, after the soldering member is attached to the metal sheet 0, the LED device 120 is coupled. At this time, it is preferable that the soldering member is attached and the LED element 120 is coupled in an oven to form a heated environment so that the LED element 120 can be coupled to the metal sheet 0 by melting the soldering member.

In addition, after the attachment of the soldering member and the combination of the LED element 120 in the oven is discharged to the outside of the oven, the LED element 120 is firmly coupled to the metal sheet by cooling.

On the other hand, after the LED element 120 is coupled to the metal sheet (0) by cutting the bridge (961) is separated into individual metal plates (110, 910, 930) and assembled in the structure described above.

At this time, each LED element 120 is assembled using a jig or the like so that it can be located at an appropriate position.

On the other hand, only the case by the etching process when forming the individual metal plate in the metal sheet has been described, but can be made by a variety of methods, such as laser processing, press working.

In addition, when the

individual metal plates

110, 910, and 930 are formed in the metal sheet 0, holes, cutouts, etc. are formed on the main surface of the metal plates to maximize heat emission from the LED element 120. desirable.

In particular, it is more preferable that the edges of the

individual metal plates

110, 910, and 930 formed in the metal sheet 0 are formed as holes, cutouts, or the like, particularly at the edges at which the LED elements are coupled.

Meanwhile, the lighting apparatus may be configured by a plurality of metal plates formed through an etching process on the metal sheet 0 as described above. In this case, each metal plate may be configured according to a predesigned structure in a state in which the plurality of metal plates are not separated. By folding the connection portion of the plate there is an advantage that can be manufactured LED lighting device of various shapes.

Meanwhile, although the LED lighting apparatus according to the first to eighth embodiments of the present invention has been described with reference to embodiments used in automobiles, the LED lighting apparatus may be applied to other lighting apparatuses such as incandescent lamps.

That is, the LED lighting apparatuses according to the first to eighth embodiments of the present invention may be used for general lighting devices instead of being used for automobiles.

In addition, as shown in Figures 5 and 6, the structure in which the LED element is installed on the metal plate as a basic structure can be variously modified as a lighting device.

As an example, in the LED lighting apparatus according to the ninth to tenth embodiment of the present invention, as shown in Figure 37 to 40, the planar metal plate 610 is bent to form a polyhedral structure each It includes a metal member 600 is provided with at least one LED element 120 on the surface.

Here, the polyhedron constituting the metal member 600 may have various shapes such as a rectangular parallelepiped having one surface open as shown in FIG. 37 and a hexahedron having one surface opened as shown in FIG. 42.

The metal member 600 is installed on the main body 2 and the planar metal plate 610 is bent to form a polyhedral structure, and one or more LED elements 120 are installed on each surface.

The metal plate 610 has a structure similar to that of the first embodiment, but the first electrode 121 and the second electrode 122 of the LED element 120 at a predetermined position in consideration of forming a polyhedron in a bent state. The contact preventing means for preventing the contact may be formed at a position corresponding to the non-contact electrode that is not made of the other electrode, the heat conduction so that only one of the heat conduction.

And the contact preventing means, as shown in Figures 38 to 44, may be a through hole 611 formed in the metal plate 610, or may be composed of a cutout.

At this time, the non-contact electrode, similar to the configuration as shown in Figure 5, the power connection line 650 for connecting to the terminal of the other LED element or the power supply line may be connected through the through hole.

As described above, the auxiliary member 960 separated from the metal plate 610 may be used to be connected to the power connection line 650 to form the through hole 611 as the contact preventing means. The connection can be facilitated.

In addition, the metal plate 610, it is preferable that a cutout portion 619 is partially formed at the boundary line bent to form a polyhedron.

When the cutout 619 is bent to form a polyhedron, the cutout is maintained as it is to protrude outward, thereby maximizing a heat dissipation effect when the LED device 120 emits light.

In addition, the metal plate 610 may be further formed with a protrusion 618 inserted into the substrate 651 to fix one end.

Meanwhile, in the LED lighting apparatus according to the ninth and tenth embodiments of the present invention, a converter circuit (not shown) for converting AC into direct current, a stable circuit (not shown) for stabilizing voltage, and the like may be installed.

In addition, in the LED lighting apparatuses according to the ninth and tenth embodiments of the present invention, the fan 940 described in the sixth embodiment may also be installed.

LED lighting device according to the present invention having the structure as described above has the advantage that can be used to significantly increase its use, such as being used in place of incandescent lamps in the conventional lighting device in which incandescent lamps are used.

Meanwhile, the LED lighting apparatus according to the ninth and tenth embodiments of the present invention may have various structures and shapes according to the use of the lighting apparatus.

Specifically, the LED lighting apparatus according to the ninth embodiment of the present invention may have a structure similar to the conventional incandescent lamp structure.

In addition, the LED lighting apparatus according to the tenth embodiment of the present invention, may have a structure similar to the conventional fluorescent lamp structure.

Here, when the LED lighting device has a structure similar to that of a fluorescent lamp, the LED device 120 has been described as an example including one metal plate 610 installed to face downward, but the LED device 120 is described below. Of course, the metal plate 610 installed to face may be installed in pairs.

In the meantime, in the LED lighting apparatus according to the ninth and tenth embodiments of the present invention, the substrate 651 on which one end of the metal plate 610 is fixed is coupled to the socket 670 for connection with an external power source. ) May be included.

The socket portion 670 is configured to be connected to an external power source to supply power to the LED device 120 is possible in a variety of structures according to the power connection structure.

In addition, the LED lighting apparatus according to the ninth embodiment of the present invention further includes a cover member 652 made of a transparent or translucent material to diffuse the light emitted from the LED element 120 or to protect the metal plate 610. can do.

The cover member 652 may have any structure as long as the cover member 652 has a transparent or translucent material to diffuse the light emitted from the LED element 120 or to protect the metal plate 610.

In addition, the cover member 652, a plurality of openings (not shown) may be formed to increase the cooling efficiency.

The LED lighting device having the above configuration has the advantage of maximizing the utilization effect of the existing lighting system by having a structure as close as possible to the conventional incandescent light structure.

That is, according to the LED lighting device according to the present invention, the light emitted in a form similar to incandescent lamps can be maximized by using the optimized reflector when the incandescent lamps are installed, the lighting effect can be maximized when using the same amount of LED elements.

On the other hand, the LED lighting device according to the present invention, unlike the ninth and tenth embodiment, the metal plate 610 may be supported and installed in the cover member 652 without bending.

That is, the LED lighting apparatus according to the eleventh embodiment and the twelfth embodiment of the present invention, the socket portion 670 for the connection to the external power source, the cover member coupled to the socket portion 670 and the inner space is formed ( 652 and a plurality of metal members 610 supported by the cover member 652 and installed in the inner space.

Here, the LED lighting apparatus according to the eleventh and twelfth embodiments of the present invention may have a tubular structure such as a conventional fluorescent lamp structure.

The socket portion 670 may be configured in various ways as a configuration for connection with an external power source.

The cover member 652 may be configured in a variety of configurations of a transparent or translucent material to diffuse the light emitted from the LED element 120 or to protect the metal plate 610.

The cover member 652 may be utilized as a support member of the metal plate 610 while protecting the metal plate 610.

In detail, the cover member 652 may include an insertion part 353 into which a part of the edge of the metal plate 610 is inserted to support the metal plate 610.

The inserting portion 353 may have any structure as long as a portion of the edge of the metal plate 610 is inserted to support the metal plate 610.

Meanwhile, the cover member 652 may have various structures according to the structure of the LED lighting device, preferably having a tubular structure, and the LED lighting device may have a structure similar to the fluorescent lamp structure.

At this time, the LED lighting apparatus according to the eleventh embodiment of the present invention has been described as an example including a metal plate 610 installed so that the LED element 120 is directed downward as a straight structure, LED element 120 ) May be installed in pairs of metal plates 610 installed to face downward.

In addition, when the LED lighting device has a structure similar to a fluorescent lamp, the socket 670 may be installed at both ends in addition to the straight pipe shape.

In addition, the cover member 652, a plurality of openings 654 may be formed to increase the cooling efficiency.

Unlike the ninth and eleventh embodiments, the metal plate 610 is similar in configuration except that the metal plate 610 is not bent.

Since the above has been described only with respect to some of the preferred embodiments that can be implemented by the present invention, the scope of the present invention, as is well known, should not be construed as limited to the above embodiments, the present invention described above It will be said that both the technical idea and the technical idea which together with the base are included in the scope of the present invention.

Claims

One or more metal plates; At least one LED element installed on the surface of the metal plate,

The LED device, the LED lighting device, characterized in that any one of the first electrode and the second electrode is coupled to the metal plate and the metal plate.
The method according to claim 1,

The LED element is mounted on a printed circuit board coupled to the metal plate,

The printed circuit board of the LED lighting device, characterized in that any one of the first electrode and the second electrode is coupled to the metal plate and the metal plate.
The method according to claim 1,

One end of the metal plate LED lighting device, characterized in that the socket portion for coupling with the structure to be installed LED lighting device is coupled.
The method according to any one of claims 1 to 3,

The metal plate, LED lighting device, characterized in that at least a part comprises a plurality of metal plates installed so that the surface on which the LED element is installed to be inclined with each other.
A socket part for coupling with the structure in which the LED lighting device is installed;

A pair of first metal plates, one end of which is coupled to the socket part and each of which has first LED elements disposed on opposite surfaces of the surfaces facing each other;

A pair of pairs of first LED plates parallel to the pair of first metal plates between the pair of first metal plates, one end of which is coupled to the socket portion, and a second LED element is installed on an opposite surface of the surface opposite to each other; Second metal plates;

The bent surface portion parallel to the pair of second metal plates between the pair of second metal plates and having one end coupled to the socket portion and bent to be perpendicular to the second metal plate; At least one third metal plate provided with a third LED element;

LED lighting device, characterized in that it comprises a spacing member to which the other ends of the first to third metal plates are coupled to maintain the gap between the first to third metal plates.