KR101768571B1 - LED Lighting Fixture - Google Patents

Abstract

The present invention relates to an LED lighting device, comprising: a case for forming an external appearance; one or multiple unit substrates mounted in the case and having a plurality of LED elements in a predetermined pattern; and a bridge connector electrically connecting the unit substrates adjacent to each other among the plurality of unit substrates. The present invention can discharge the heat inside the LED lighting device to the outside.

Description

{LED Lighting Fixture}

The present invention relates to an LED lighting device, and more particularly, to an LED lighting device capable of facilitating extending, connecting, and dissipating a PCB substrate.

Generally, indoor lighting includes a living room, a room, a kitchen, a toilet, and the like, and an incandescent lamp or a fluorescent lamp is used. Fluorescent lamps are also commonly used as light sources for lighting signage.

Currently, various types of fluorescent lamps, three-wavelength lamps, and LED lights are installed in various forms from incandescent lamps using filaments, and the lighting industry is continuously developing.

Meanwhile, compared with the above-described three-wavelength lamp, the light emitting diode (LED), which is a next generation light source that can be used semi-permanently and has excellent energy saving effect compared to the existing light source, is firmly established in the lighting industry.

As the luminance (brightness) problem, which was the limit of lighting using the LED, has been greatly improved in recent years, the application market is spreading throughout the industry, and a full-fledged LED era is foreseen.

It is an excellent device for low power consumption. It is a device that produces electrode terminals on both sides of p-type and n-type junctions, and when voltage is applied between terminals, current flows and emits light near the pn junction. .

Such an LED illumination device is largely used in a SMD (Surface Mount Device) type and a lamp type, and is also used as a light source constituting a conventional lighting signboard.

The LED illumination device according to the related art generally includes a main body case fixed to an interior ceiling surface or a ceiling of the main body case, an LED module provided inside the main body case and used as a light source, And a fixing frame for fixing the body case and the diffusion plate. At this time, a converter is provided in the upper part of the main body case to electrically convert the voltage to a predetermined voltage and to supply the voltage to the LED module.

Such an LED illumination device includes a PCB substrate and a plurality of LED elements mounted on the substrate, and the number, size, arrangement position, etc. of the substrate and the LED elements are designed and modified according to the size of the illumination and the purpose of use .

However, such an LED illumination device has a structure in which the shape and size of the substrate must be newly rewritten according to the shape and size of the lighting device, so that there is a problem that the manufacturing cost increases as the number of models increases.

Also, as the size of the substrate increases, the heat accumulation inside the LED illumination device shortens the lifetime.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a PCB And it is an object of the present invention to provide an LED lighting device which can discharge foreign substances and moisture from outside.

According to an aspect of the present invention, One or a plurality of unit substrates mounted in the case and having a plurality of LED elements in a predetermined pattern and a bridge connector electrically connecting the unit substrates adjacent to each other among the plurality of unit substrates, LED illumination device.

Wherein the bridge connector includes a first connection portion inserted into a connection hole formed in an edge portion of a first substrate disposed on one side of the plurality of unit substrates, and a second connection portion formed on a second side of the plurality of unit substrates, And a fixing unit interposed between the first connection unit and the second connection unit to maintain the coupled state between the first connection unit and the second connection unit.

The first connection portion and the second connection portion may include a fixed frame protruding downward from a portion where the first connection portion and the second connection portion face each other and a spaced groove formed to be spaced apart from each other between the fixed frames.

The fixing unit may include an engaging member inserted into the spacing groove such that the first connecting portion and the second connecting portion are spaced apart from each other when the fixing frame is inserted into the engaging hole formed in the case, And a pressing member provided so as to be movable.

The LED illumination device may further include a fastening part inserted into the fastening hole penetrating the unit substrate and coupling the unit substrate to the case.

The fastening portion may include an insertion member inserted into the fastening hole and a head member provided on the insertion member and adapted to elastically contact the upper surface of the unit substrate.

The insertion member may include an elastic supporting member elastically protruding in a direction perpendicular to a direction of insertion into the fastening hole to support a back surface of the case.

The LED illumination device may include a heat dissipation unit coupled to a heat dissipation hole formed on the unit substrate.

Wherein the heat dissipation unit is disposed on the unit substrate so as to correspond to the position of the heat dissipation hole and is formed integrally with the inflow member and inserted into the heat dissipation hole A discharge member which communicates with the outside of the case to discharge the air inside the case to the outside, and a filter member which is interposed between the inflow member and the discharge member to allow air to flow in and out and to prevent the inflow of foreign matter and moisture from the outside of the case, . ≪ / RTI >

The heat dissipation unit may include an O-ring that seals between the heat dissipation unit and the heat dissipation unit at an outer circumferential surface adjacent to the inflow member and the discharge member.

According to the LED illumination device of the present invention,

First, since it is easy to electrically connect a plurality of unit substrates through the bridge connector, the expandability of each model is increased according to the shape and size of the LED illumination device,

Second, if the expandability is increased, it is not necessary to separately manufacture an optimized PCB substrate for each model, so that the manufacturing cost can be reduced and the manufacturing process can be simplified.

Thirdly, assembling property of the LED illumination device is increased by uniting the unit substrates on the case through the fastening part in a one-touch manner,

Fourth, the heat air filled in the case inside the case can be naturally discharged to the outside, so that the heat dissipation of the unit substrate or the LED element can be smoothly performed,

Fifth, it is expected that the life expectancy of the LED lighting device is extended due to the smooth heat dissipation.

1 is an exploded perspective view of an LED illumination device according to an embodiment of the present invention.
2 is a partially enlarged reference view showing a bridge connector of the LED lighting apparatus shown in Fig.
3 is a cross-sectional view showing a side view of the bridge connector of the LED illumination device shown in Fig.
4 is a perspective view showing a fastening portion of the LED illumination device shown in Fig.
Fig. 5 is a sectional view showing the fastening portion of the LED illumination device shown in Fig. 2 from the side. Fig.
6 is a partial cross-sectional perspective view showing a heat dissipation portion of the LED illumination device shown in Fig.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. It should be noted that the drawings denoted by the same reference numerals in the drawings denote the same reference numerals whenever possible, in other drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. And certain features shown in the drawings are to be enlarged or reduced or simplified for ease of explanation, and the drawings and their components are not necessarily drawn to scale. However, those skilled in the art will readily understand these details.

Fig. 1 is an exploded perspective view of the LED lighting apparatus according to the embodiment of the present invention. Fig. 2 is a partial enlarged reference view of the bridge connector of the LED lighting apparatus shown in Fig. 1. Fig. FIG. 4 is a perspective view showing a fastening portion of the LED lighting device shown in FIG. 3, and FIG. 5 is a side view showing the fastening portion of the LED lighting device shown in FIG. And Fig. 6 is a partial cross-sectional perspective view showing a heat dissipation portion of the LED illumination device shown in Fig.

1 to 6, an LED illumination apparatus 100 according to an embodiment of the present invention includes a case 110, a unit substrate 120, and a bridge connector 130.

First, the case 110 forms an outer shape of the LED illumination device 100. [ A housing space 1301 is formed in the case 110 so as to accommodate the unit substrate 120 and the bridge connector 130. The housing space 1301 is opened at one side, Of light is emitted.

A separate cover 112 may be coupled to one side of the opened accommodation space 1301. The cover 112 may be provided with a diffusion means for scattering light of the light source in a lens type or a sheet type.

Further, the shape of the case 110 may be designed as a polygonal shape of a triangle or more, or a streamline shape such as a circular shape or an elliptical shape.

The unit substrate 120 is formed of a PCB substrate in which one or more general LED elements 121 are arranged. It goes without saying that a flexible FPCB can be applied according to the shape and structure of the case 110.

A plurality of LED elements 121 are provided on the unit substrate 120 in a predetermined pattern. Here, the pattern of the LED element 121 may be variously changed according to the arrangement position, color, and luminous intensity.

The pattern of the LED elements 121 is an edge type in which the LED elements 121 are arranged side by side in the corner portion of the case to indirectly irradiate light according to the arrangement position and a plurality of LED elements 121 are arranged on the upper surface of the unit substrate 120 at set intervals And can be installed in a direct-type type in which light is directly irradiated toward the open direction of the accommodation space 1301.

Also, the hue of the LED element 121 can be set in the range of about 3000K to 8000K according to the color temperature (K) value. Of course, various colors can be selectively lit, or they can be lit in colors close to white through a combination of colors.

The luminous intensity of the LED element 121 can be increased by increasing the luminous intensity or by increasing the luminous intensity by arranging the luminous intensity of each element narrower on the basis of the luminous intensity of each element. Also, the luminous intensity can be adjusted by arranging the reference luminous intensities of the respective LED elements 121 to be different from each other, and adjusting the current or voltage in the converter to implement the dimming function.

A plurality of unit substrates 120 are connected to each other through a circuit in the case 110.

For this purpose, each of the unit substrates 120 should be fixed to the inner surface of the case 110, and the unit substrates 120 in a fixed state must be electrically connected.

A first substrate 122 disposed on one side of a plurality of unit substrates 120 and a second substrate 123 disposed adjacent to the first substrate 122 are electrically connected to each other to constitute one circuit The bridge connector 130 is coupled.

The bridge connector 130 includes a first connection part 131 coupled to the first substrate 122, a second connection part 132 coupled to the second substrate 134, a first connection part 131 and a second connection part 132 132 to maintain their engaged state.

The first substrate 122 is provided with a terminal 1221 which contacts the first connection part 131 and a connection hole 1222 is formed so that a lower part of the first connection part 131 is inserted. The second substrate 123 is also provided with a terminal 1231 which contacts the second connection part 132 and a connection hole 1232 is formed so that a lower part of the second connection part 132 is inserted.

Here, the first connection part 131 and the second connection part 132 are preferably integrally formed, and the present invention is also applicable to a structure in which the first connection part 131 and the second connection part 132 are coupled to each other.

The first connecting part 131 and the second connecting part 132 are spaced apart from each other by a spaced apart groove 1312. The first connecting part 131 and the second connecting part 132 And a fixed frame 1311 is provided on the lower side.

The fixing part 133 is inserted into the spacing groove 1312 to provide a function of separating the first connection part 131 and the second connection part 132 further.

The first substrate 122 and the second substrate 123 are fixed to the case 110 and the first connection part 131 and the second connection part 132 are formed on the first substrate 122 and the second substrate 123, The fixing frame 1311 is inserted into the coupling hole 111 formed on the case 110 and the fixing portion 1311 is inserted into the separation groove 1312 so that the separation distance of the separation groove 1312 The coupling of the bridge connector 130 is performed. The bridge connector 130 again maintains the state where the first substrate 122 and the second substrate 123 are coupled to the case 110 and the first substrate 122 and the second substrate 123 So that they can be electrically connected. Further, the bridge connector 130 can be additionally connected according to the number of the unit boards 120. [

The fixing portion 133 includes a coupling member 1331 inserted into the spacing groove 1312 and a pressing member 1332 provided on the coupling member 1331 so as to be pressed by the user.

The fixing part 133 is formed in a substantially tapered shape so that the engaging member 1331 protruding downward is inserted into the spacing groove 1312 and the upper part of the engaging member 1331 is detachably attached to the upper part of the engaging member 1331 through the pressing member 1332. [ .

In order to fix the unit substrates 120 electrically connected to the case 110, the LED illumination device 100 further includes a fastening part 140.

The fastening part 140 is inserted into the fastening hole 124 penetrating the unit substrate 120 to fasten the unit substrate 120 and the case 110 at the same time. At this time, it is preferable that the fastening part 140 is formed before the bridge connector 130 before the unit board 120 and the case 110 are fastened.

The fastening part 140 includes an insertion member 141 inserted into the fastening hole 124 and a head member 142 provided on the insertion member 141 to be elastically contacted with the upper surface of the unit substrate 120 do.

The insertion member 141 also includes an elastic supporting member 1411 protruding in a direction perpendicular to the direction of insertion into the fastening hole 124 and supporting the back surface of the case 110.

The head member 142 is made of a synthetic resin such as natural rubber or synthetic rubber, and may also be made of silicon. Therefore, the head member 142 elastically presses the upper surface of the unit substrate 120, thereby reducing the vibration transmitted between the unit substrate 120 and the case 110. [

The insertion member 141 may be coupled to penetrate from the upper surface of the head member 142 or may be coupled to the bottom surface of the head member 142. The insertion members 141 protrude from the head member 142 in a separated plate shape so as to be gradually distanced from each other and are elastically disposed on the fastening holes 124. Therefore, the insertion members 141 are screwed together so as to be close to each other, inserted into the fastening holes 124, and then engaged with each other. At this time, the elastic supporting member 1411 further spreads in the same direction, that is, the direction in which the insertion member 141 is opened, while the insertion member 141 is flared with each other again. In other words, the insertion member 141 is projected in a direction perpendicular to the direction in which the insertion member 141 is inserted into the fastening hole 124. The elastic supporting member 1411 is supported on the back surface of the case 110 and is wider than the diameter of the fastening hole 124 to prevent the insertion member 141 from being detached from the fastening hole 124. On the contrary, at the time of detachment, the inserting member 141 and the elastic supporting member 1411 are pressed at the same time so that the engaging hole 141 is disengaged so that the engaging distance can be removed from the engaging hole 124.

Since the coupling unit 140 can couple the unit substrate 120 and the case 110 in a one-touch manner, the assembling process is easy and the manufacturing time can be shortened.

When the unit substrate 120 and the case 110 are assembled and the LED element 121 is turned on, the temperatures of the unit substrate 120 and the inside air in the case 110 rise. The temperature is raised by the radiating fins (not shown) separately installed outside the case 110. Since the heat air filled in the case 110 is not smoothly transferred by the heat radiating fins, the heat radiating part 150 is provided in the heat radiating hole 125 formed on the unit substrate 120.

The heat dissipation unit 150 has a function of discharging the heat air inside the case 110 to the outside and dissipating heat by being coupled to the unit heat dissipation hole 125 penetrating the unit substrate 120 and the case 110.

The heat dissipation unit 150 includes an inflow member 151 for introducing the heat air in the accommodation space 1301 inside the case 110 and a discharge member 151 for discharging the heat air supplied from the inflow member 151 to the outside of the case 110 A filter member 153 interposed between the inflow member 151 and the discharge member 152 in the heat dissipating unit 150 and an O-ring 152 for sealing between the heat dissipating unit 150 and the heat dissipating unit 125. [ (154).

First, the inflow member 151 is closely attached to the upper surface of the unit substrate 120, and is arranged to shield the air discharge hole 125. At least one inflow hole 1511 through which the hot air flows into the accommodation space 1301 is formed on the upper surface or the side surface of the inflow member 151. The height of the inflow member 151 projecting from the upper surface of the unit substrate 120 is formed to be smaller than the diameter or width of the inflow member 151 so as not to interfere with the light emitted from the LED element 121. The heat dissipation holes 125 are not exposed from the upper surface of the unit substrate 120 after the heat dissipation units 150 are coupled. Therefore, the heat air filled in the accommodation space 1301 is discharged to the outside through the heat dissipation unit 150 by the pressure balance. In addition, relatively low temperature air may be introduced through the heat dissipating unit 150 to compensate for the lowered pressure while the hot air is discharged.

And the discharge member 152 has a function of passage for transferring the heat air supplied from the inflow hole 1511 to the outside.

Here, while the inflow member 151 and the discharge member 152 communicate with each other, the filter member 153 filters air passing through the filter member 153 to allow only pure air to flow in and out. For example, the heat air passes through the filter member 153 and is discharged to the outside through the discharge hole 1521 in the housing space 1301. Conversely, when air is introduced from the outside of the case 110 through the discharge member 152, the filter member 153 introduces only pure air into the receiving space 1301, and filters out foreign substances such as moisture and dust to block the inflow do. Therefore, it is possible not only to block the inflow of pests but also to reduce the temperature difference between the inside and the outside of the LED illumination device 100, thereby preventing condensation.

Accordingly, since the LED lighting apparatus 100 can easily electrically connect the plurality of unit substrates 120 through the bridge connector 130, the expandability can be increased for each model according to the shape and size of the LED lighting apparatus 100 . If the expandability is increased, it is not necessary to separately manufacture an optimized PCB substrate for each model, so that the manufacturing cost can be reduced and the manufacturing process can be simplified. Further, the unit substrates 120 are coupled on the case 110 through the fastening part 140 in a one-touch manner, thereby enhancing the assemblability of the LED illumination device 100. In addition, the hot air filled in the accommodation space 1301 inside the case 110 can be discharged to the outside, so that the heat radiation of the unit substrate 120 or the LED elements 121 can be smoothly performed, It is expected that the life expectancy of the battery 100 is prolonged.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, And the like. Accordingly, such modifications are deemed to be within the scope of the present invention, and the scope of the present invention should be determined by the following claims.

100: LED illumination device
110: Case
120: unit substrate
130: Bridge connector
140:
150:

Claims (10)

A case forming an outer shape;
A plurality of unit substrates mounted in the case and having a plurality of LED elements in a predetermined pattern,
And a bridge connector for electrically connecting the unit substrates adjacent to each other among the plurality of unit substrates and coupling the unit substrates onto the case,
Wherein the bridge connector includes a first connection portion inserted into a connection hole formed in an edge portion of a first substrate disposed on one side of the plurality of unit substrates and a second connection portion formed on a second side of the plurality of unit substrates, And a fixing unit interposed between the first connection unit and the second connection unit to maintain the connection state of the first connection unit and the second connection unit,
Wherein the first connection portion and the second connection portion each include a fixed frame protruding downward from a portion where the first connection portion and the second connection portion face each other and a spacing groove formed to be spaced apart from each other between the fixed frames. Lighting device. delete delete The method according to claim 1,
The fixing unit includes:
An engaging member inserted into the spacing groove such that the first connecting portion and the second connecting portion are spaced apart from each other when the fixing frame is inserted into the engaging hole formed in the case;
And a pressing member provided on the coupling member so as to be able to be pressed by a user. The method according to claim 1,
Further comprising a fastening part inserted into a fastening hole penetrating the unit substrate and coupling the unit substrate to the case. The method of claim 5,
The fastening portion
An insertion member inserted into the fastening hole,
And a head member provided on the insertion member and adapted to elastically contact the upper surface of the unit substrate. The method of claim 6,
The insertion member
And an elastic support member elastically protruding in a direction perpendicular to the direction of insertion into the fastening hole to support the back surface of the case. The method according to claim 1,
And a heat dissipation unit coupled to the heat dissipation hole formed on the unit substrate. The method of claim 8,
The heat-
An inflow member disposed on the unit substrate so as to correspond to a position of the heat dissipation hole and having at least one inflow hole for allowing inflow of heat air inside the case;
A discharge member formed integrally with the inflow member and inserted into the air discharge hole and communicating with the outside of the case to discharge air inside the case to the outside,
And a filter member interposed between the inflow member and the discharge member to allow air to flow in and out, and to prevent the inflow of foreign matter and moisture from the outside of the case. The method of claim 9,
The heat-
And an O-ring for sealing the space between the heat dissipation unit and the heat dissipation unit at an outer circumferential surface adjacent to the inflow member and the discharge member.

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