KR20100082394A - Pcb block and led module comprising the same - Google Patents

Abstract

PURPOSE: A printed circuit board(PCB) block and a block type light emitting diode(LED) module including the same are provided to manufacture an integrated type PCB and LED module by suitably arrange the PCB blocks according to the types, the pitches, the number and/or the arrangement of LED devices. CONSTITUTION: An LED module(1) includes a plurality of PCB blocks(10) and a plurality of LED devices(20) which is mounted on the upper side of the PCB blocks. The PCB blocks form an electric circuit which drives the LED devices. A PCB block includes grooves(12) and protrusions(11), which are engaged with other grooves and protrusions of a neighboring PCB block, on the lateral sides. Terminals for electrical connection are arranged on the grooves and the protrusions of the PCB block.

Description

PCB block and block type LED module including the same {PCB BLOCK AND LED MODULE COMPRISING THE SAME}

The present invention relates to an LED module, and more particularly, it is possible to easily design and manufacture the type, pitch, number and / or arrangement of the LED elements or the overall shape and size of the PCB on which the LED is mounted as desired. It relates to a block type LED module.

LED (Light Emitting Diode) is basically composed of p-type and n-type semiconductor junction, and is a device using a light emitting semiconductor that emits energy corresponding to the band gap of the semiconductor in the form of light by combining electrons and holes when voltage is applied. Such LEDs have many advantages, such as high power characteristics at low current requirements, fast responsiveness, long life, and rigid package construction.

LED modules in which several LED devices are mounted on a PCB are known. In the known LED module, a package type LED element, that is, an LED package, or a bare chip type LED element, that is, an LED chip is mounted. In addition, depending on the size, type, shape, use, or application of the LED module, various types of LED elements are mounted on the PCB in various desired pitches, numbers and arrangements.

However, in the related art, whenever a desired LED module is manufactured, there is a problem of redesigning the PCB every time according to the type, pitch, number, and / or arrangement of the LED elements. Even in the pre-production stage of the LED module, in order to accurately test the wavelength and brightness of the designed LED module, there is even the need to redesign the PCB every time. This is especially true for UV LED modules or AC LED modules.

The technical problem of the present invention is an LED module that can be easily designed and manufactured by changing the type, pitch, number and / or arrangement of the LED elements or the overall shape and size of the PCB on which the LED is mounted, and the PCB used therein. To provide a block.

According to an aspect of the present invention, there is provided an LED module including a plurality of PCB blocks capable of electrical connection while being arranged side by side against each other, and an LED element mounted on any one of the PCB blocks. At this time, it is most preferable that the connection terminals are provided on the side surfaces of the PCB blocks, but only in claims 1 and 8 of the claims, the 'electrical connection' or the 'electrical connection' is limited to the electrical connection at the side. Rather, connecting additional terminals on the other sides of the PCB block using additional connection means (eg, wiring).

According to an embodiment of the present invention, the plurality of PCB blocks may be composed of only main PCB blocks on which the LED device is mounted.

According to another embodiment of the present invention, the plurality of PCB blocks may include a plurality of main PCB blocks on which the LED device is mounted and at least one secondary PCB block without the LED device.

According to an embodiment of the present invention, each of the PCB blocks may be provided on the side of the intaglio portion or the other embossed portion to be fitted to the intaglio portion of the neighboring PCB block. More preferably, each of the PCB blocks And a terminal for electrical connection to the intaglio or embossed parts.

According to an embodiment of the present invention, a plurality of LED elements mounted on the main PCB blocks may constitute an AC LED array.

According to an embodiment of the present invention, the plurality of PCB blocks may include a PCB block directly connected to an external power source. Here, "directly connected" means "connected to a power source without going through another PCB block."

According to another aspect of the invention, a PCB block for an LED module constituting an integrated PCB in which at least one LED is mounted together with at least one other PCB block, the PCB block having a plurality of sides, at least one of the plurality of sides A PCB block for an LED module, which is arranged side by side with another neighboring PCB block at the side of and electrically connected to the neighboring PCB block, is provided.

According to embodiments of the present invention, according to the type, pitch, number and / or arrangement of the LED elements, by appropriately placing the appropriate PCB blocks, it is possible to easily manufacture the desired integrated PCB and the LED module mounted thereon. This can be used for the production of the actual LED module, especially in the experimental stage before mass production, it can be usefully used to test the wavelength and brightness of the LED module. In addition, the present invention provides a very wide range of applications, such as being made of block toys.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are provided as examples to ensure that the spirit of the present invention to those skilled in the art will fully convey. Accordingly, the present invention is not limited to the embodiments described below and may be embodied in other forms. And, in the drawings, the width, length, thickness, etc. of the components may be exaggerated for convenience. Like numbers refer to like elements throughout.

1 is a plan view illustrating an LED module according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along line AA ′ of FIG. 1.

1 and 2, the LED module 1 according to the present embodiment includes a plurality of PCB blocks 10 and a plurality of LED elements 20 mounted on an upper surface of each of the plurality of PCB blocks 10. Include them. Here, the LED element 20 may be an LED package or a bare LED chip. In addition, the PCB block 10 is preferably formed by forming an electrode pattern or the like in the plastic injection molding, but is not necessarily limited thereto.

Each of the plurality of PCB blocks 10 is disposed to face each other with neighboring PCB blocks 10, and by such arrangement, one integrated PCB may be configured. In addition, each of the PCB blocks 10 is electrically connected to each of the neighboring PCB blocks 10, whereby the PCB blocks 10 may constitute an electrical circuit for operating the LED elements 20. have.

As shown in FIG. 1, the PCB block 10 has four sides, two sides of which are embossed portions 11 fitted to the intaglio portions 12 of other neighboring PCB blocks 10. In addition, the remaining two sides are provided with the intaglio portion 12 to be fitted to the embossed portion 11 of the other PCB blocks 10 neighboring. The embossed portion 11 and the engraved portion 12 each have a “T” shape, allowing vertical insertion and removal, but not insertion and separation in the horizontal direction, such that the PCB blocks 10 are sided. It makes it possible to combine them. For a tighter bond between the PCB blocks, additional adhesive may be used, or an additional frame supporting the entire PCB blocks outward may be used.

As shown in FIG. 2, each of the PCB blocks 10 has first and second connection terminals 13 and 14 on its side surfaces. More specifically, the relief portion 11 of the PCB block 10 is provided with a first connection terminal 13, the intaglio portion 12 of the PCB block 10 is provided with a second connection terminal (14). do. Thus, when one PCB block 10 and the other PCB block 10 are connected by their embossed portion 11 and the engraved portion 12 and arranged side by side to each other, the embossed portion 11 and the engraved portion By the contact of the first and second connection terminals 13 and 14 provided in (12), the neighboring PCB blocks 10 are electrically connected to each other.

In addition, the PCB block 10 includes a mounting groove 16 on an upper surface on which the LED device 20 is mounted. Electrode patterns electrically connected to the lead terminals of the LED device 20 are located at the bottom of the mounting groove 16. The LED device 20 may be coupled into the mounting groove 16 by an adhesive method or a soldering method. Alternatively, the LED device 20 may be assembled by itself to fit the mounting groove 16. In addition, it may also be considered that the LED element 20 and the PCB block 10 are electrically connected.

3A and 3B show a left side view and a right side view of the PCB block 10 shown in FIGS. 1 and 2. Referring to FIG. 3A, a second connection terminal 14 is formed on the intaglio portion 12 on the left side of the PCB block 10, and an embossed portion on the right side of the PCB block 10. First connecting terminals 13 are formed at 11. The first connection terminal 13 of the PCB block 10 is in contact with a second connection terminal of another neighboring PCB block, and the second connection terminal 13 of the PCB block 10 is formed of another neighboring PCB. 1 Make contact with the connecting terminal.

Although not shown, any one of the PCB blocks shown in FIG. 1 may include a power connection terminal directly connected to a power source, with a connection terminal connected to a neighboring PCB.

4 is a plan view showing another LED module according to another embodiment of the present invention. Referring to FIG. 4, the LED module 1 according to the present embodiment includes a main PCB block 10 on which the LED element 20 is mounted, and a sub PCB block 10 on which the LED element 20 is not mounted. ') The secondary PCB block 10 'may be useful when a large pitch spacing is required between the LED elements 20, and the secondary PCB block 10', like the primary PCB block 10, is adjacent to the neighboring PCB. It may include an embossed portion and a negative portion for mechanical coupling with the PCB block, and may also include a terminal connected directly to the power supply and / or connection terminals for electrical connection with the neighboring PCB block.

PCB blocks equipped with the LED element 20 may be connected to each other to make an LED module. In contrast, PCB blocks may be connected to each other to produce an integrated PCB, and then the corresponding PCB convex 10 may be formed. The LED module 20 of the desired type may be mounted to make an LED module. At this time, the electrode pattern of the PCB block 10 and the electrodes of the LED element 20 is of course electrically connected.

FIG. 5 is a plan view illustrating an LED module according to another embodiment of the present invention. In the LED module 1 illustrated in FIG. 5, an embossed portion 11 and a recessed portion 12 of each PCB block 10 may be formed. It has a "Ω" type.

The embossed portion and the engraved portion may have various shapes such that the embossed portion and the engraved portion do not fall with respect to each other, in addition to the "T" type of the previous embodiment to the "Ω" type of the present embodiment.

6A and 6B illustrate some of the various forms of a deformable PCB block.

Referring to FIG. 6A, unlike the PCB block of the previous embodiment, in which the embossed portion or the engraved portion is provided on four sides, the PCB block 10 has no embossed portion and the engraved portion on one side of the four sides, and among the three sides. Two sides are provided with the intaglio portion 12 and the other side is provided with an embossed portion (11). At this time, the power connection terminal 17 which is directly connected to the power source may be provided on the other side without the embossed portion and the intaglio portion.

Referring to FIG. 6B, the PCB block 10 includes an embossed portion 11 and an engraved portion 12 on each of two opposite sides, and does not include an embossed portion or an engraved portion on the remaining two sides. Such a PCB block 10 would be useful for applications where the LED elements are arranged in a long row on an elongated PCB.

FIG. 7A is a view showing an AC LED module according to another embodiment of the present invention, and FIG. 7B is an equivalent circuit diagram of the AC LED module shown in FIG. 7A.

7A and 7B, the AC LED module is connected to an AC power supply 30 to receive an AC voltage from the AC power supply 30. At this time, the LED elements 20a, 20b, and 20c mounted on the PCB blocks 10a, 10b, and 10c, respectively, are connected in series to form a first series array. In addition, the LED elements 20d, 20e, and 20f mounted on the other PCB blocks 10d, 10e, and 10f are connected in series to form a second series array.

Both ends of the first and second series arrays are connected to an AC power source 30 and ground. The first series array and the second series array are inversely connected between the AC power supply 30 and the ground. Therefore, when the AC power source 30 is in a positive phase, when the LED elements 20a, 20b, and 20c included in the first series array are turned on, and the AC power source 30 is in a negative phase. The LED elements 20d, 20e, and 20f included in the second series array are turned on.

Although not shown, an AC LED module may be implemented using a series rectifier and a bridge rectifier of LED elements. In addition, as one LED element mounted on each PCB block, an AC LED chip having a plurality of light emitting cells operable by an AC power source can be used.

Although the drawings show that only PCB blocks having the same shape are connected to form an integrated PCB, the present invention is not limited thereto. The PCB blocks having different shapes may be connected to form an integrated PCB. It is in range.

1 is a plan view showing an LED module according to an embodiment of the present invention.

2 is a sectional view taken along the line AA ′ of FIG. 1;

3A and 3B are a left side view and a right side view of the PCB block 10 shown in FIGS. 1 and 2.

Figure 4 is a plan view showing another LED module in another embodiment of the present invention.

5 is a plan view showing an LED module according to another embodiment of the present invention.

6 (a) and (b) are views for explaining various types of PCB blocks.

7A is a plan view illustrating an AC LED module according to an embodiment of the present invention.

7B is an equivalent circuit diagram of the AC LED module shown in FIG. 7A.

Claims (12)

A plurality of PCB blocks electrically connected to each other and arranged side by side between neighbors; And LED module comprising an LED element mounted to any one of the PCB blocks. The LED module as set forth in claim 1, wherein the plurality of PCB blocks includes only main PCB blocks on which the LED device is mounted. The LED module of claim 1, wherein the plurality of PCB blocks comprises a plurality of main PCB blocks on which the LED element is mounted and at least one secondary PCB block without the LED element. The LED module according to claim 1, wherein each of the PCB blocks has another embossed portion or embossed portion fitted to a side portion of the neighboring PCB block. The LED module according to claim 4, wherein each of the PCB blocks has a terminal for electrical connection to the intaglio or embossed portions. 4. The LED module according to claim 2 or 3, wherein a plurality of LED elements mounted on the main PCB blocks constitute an AC LED array. The LED module of claim 1, wherein the plurality of PCB blocks comprises a PCB block directly connected to an external power source. A PCB block for an LED module comprising an integrated PCB on which at least one LED is mounted together with at least one other PCB block, A PCB block for an LED module having a plurality of side surfaces, the sides of the plurality of sides of the plurality of sides and the other PCB blocks neighboring the neighboring PCB block is disposed, and electrically connected to the neighboring PCB block. The PCB block for an LED module according to claim 8, wherein a connection terminal electrically connected to a PCB block neighboring at least one of the plurality of side surfaces is located. The PCB block for an LED module according to claim 9, wherein at least one of the plurality of side surfaces includes an embossed portion or an embossed portion fitted to an engraved portion or an embossed portion of a neighboring PCB block. The PCB block for an LED module according to claim 10, wherein the connection terminal is located in the relief portion or the relief portion. The PCB block for an LED module according to claim 8, wherein a power connection terminal is directly connected to a power source on the other side of the plurality of side surfaces.

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