KR20110109007A - Flexible led module - Google Patents

Abstract

The present invention relates to a flexible LED module, comprising: a plurality of LED packages having an LED chip and two or more leads extending corresponding to each polarity from the LED chip; And a plurality of connection frames provided between the LED packages to electrically connect and support two neighboring LED packages, wherein each connection frame includes a first polar lead of any one of the neighboring LED packages inserted therein. A first connection portion having a first cut portion fixed therein and a second connection portion having a second cut portion into which the second polarity lead of the other LED package is inserted and fixed; And a connection part provided between the first connection part and the second connection part to electrically connect and support each other. When the LED package is fixed at the upper part of the connection part, the leads push out the respective cutouts. Afterwards, it is bent together with each of the cutouts, and is fixed to the lower portion of each of the connection parts.
As a result, the LED packages are sequentially electrically connected and supported by the connecting frame, thereby enabling the implementation of a planar as well as a non-planar structure as a whole. In addition, the leads of each LED package are fixed to each connecting frame through an adhesive structure such as soldering. Not only is it environmentally friendly, it also has the advantage that it can be easily replaced when some LED packages need to be replaced.

Description

Flexible LED Module {FLEXIBLE LED MODULE}

The present invention relates to a flexible LED module, and when fixing a plurality of LED packages in order to implement a variety of non-planar structure, such as curves, and eco-friendly by avoiding the fixing method, such as soldering, of some damaged LED package The replacement also relates to a flexible LED module that can be easily performed.

LED (Light Emitting Diode) is a semiconductor device for generating light of various colors when a current is applied. These LEDs have a number of advantages, such as long life, low power, excellent initial driving characteristics, high vibration resistance, and high tolerance for repetitive power interruptions, compared to other light emitting devices based on filaments. .

In response to this trend, LEDs have recently been widely used in light source assemblies such as automotive indicators and stop lights in the form of modules. In particular, since the indicator and stop lamps based on the existing incandescent lamp occupy a lot of rear space, there is an advantage that the rear space can be efficiently used when the light emitting diode assembly is used as the indicator and / or stop lamp.

In this case, the light source assembly needs to be implemented in various non-planar shapes such as curved shapes as necessary.

In general, a printed circuit board is generally used for mounting a semiconductor device such as an LED. Since a printed circuit board is mainly made of a material having a lack of ductility due to many restrictions on bending, such as epoxy or bakelite resin, Easy to break Accordingly, when the LED is mounted on the printed circuit board, it is impossible to implement the LED in the form as described above.

Moreover, since most solders are used when LEDs are mounted, there is a disadvantage that they may have a detrimental effect on people or the environment during the manufacture or disposal of such substrates.

To this end, conventionally, two busbars corresponding to each polarity of the LEDs are prepared, and each lead of the LEDs is melted by using a laser device on each busbar to melt the corresponding areas, or the leads and busbars are pressed. It can be combined by locking clamping (clinching) (US Patent No. 5,404,282), or by forming a hook on a lead or busbar and forcing the other one to be fixed (Korean Patent Registration No. 0558454). It became.

However, in the case of the first method, it is very difficult to separate the combined LED again, so when some LEDs are broken, the entire LED module needs to be replaced, and since the laser device is expensive, the module configuration is expensive.

In addition, in the case of the second method, the clinching operation cannot be reworked, and thus there is a disadvantage that other methods such as laser welding described above should be used when replacing some LEDs.

Also in the third method, since it is necessary to form hooks on the LED-side leads, it is not generally applicable. In addition, when the coupling is forced to accommodate the other to the hook forcibly, because the capacity of the hook is proportional to the fixing force of the LED inevitably increase the capacity, in this case, if the capacity is greater than the deformation force of the terminal It was not bent to be accommodated, and on the contrary, if the accommodation was low, there was a disadvantage that the LED could not be firmly fixed after the reception.

In addition, in each of the above-described methods, since two bus bars support the LED elements in parallel, there is a disadvantage in that it is impossible to form various non-planar structures only by bending in one direction.

Accordingly, an object of the present invention is to be able to be bent in one or multiple directions between the connecting frame or the connecting frame itself, so that when the multiple LED packages are fixed in sequence, a flexible LED module that can implement a variety of non-planar structure, such as curve To provide.

In addition, while replacing the damaged LED is easy to replace, while providing a flexible LED module that can be firmly supported mechanically and electrically.

The object is, according to an embodiment of the present invention, a plurality of LED package having an LED (LED) chip and at least two leads extending corresponding to each polarity from the LED chip; And a plurality of connection frames provided between the LED packages to electrically connect and support two neighboring LED packages, wherein each connection frame includes a first polar lead of any one of the neighboring LED packages inserted therein. A first connection portion having a first cut portion fixed therein and a second connection portion having a second cut portion into which the second polarity lead of the other LED package is inserted and fixed; And a connection part provided between the first connection part and the second connection part to electrically connect and support each other. When the LED package is fixed at the upper part of the connection part, the leads push out the respective cutouts. It is then achieved by a flexible LED module that is bent together with each cutout and pressed against the bottom of each contact.

The first connection part, the second connection part and the connection part may be provided in a plate shape, and the connection part may be provided to have a smaller width than the first connection part and the second connection part.

The connection part may be provided by a wire.

The connection part may be provided with a flexible material to bend.

The cutout may be provided in a 'c' shape.

Each lead may have a stopper protruding in a horizontal direction in a longitudinal direction such that the LED package is spaced apart and fixed to the upper portion of the connection frame at a predetermined interval.

On the other hand, the object is, according to another embodiment of the present invention, a plurality of LED package having an LED (LED) chip and at least two leads extending corresponding to each polarity from the LED chip; And a plurality of connection frames provided between the LED packages to electrically connect and support two neighboring LED packages, wherein each of the connection frames has a cylindrical shape at both ends thereof, and among the adjacent LED packages. A third connecting portion for accommodating one of the first polar leads, a fourth cylindrical portion having an open end at both ends, and a second connecting portion for accommodating the second polar lead of the other LED package; and the third connecting portion and the fourth connecting portion A flexible LED module is also provided, which includes flexible flexible wires provided between the connecting portions to electrically connect and support each other, so that the ends of the leads and the flexible wires are respectively accommodated in the respective connecting portions, and then compressed and fixed together. Can be.

The third connector, the fourth connector and the flexible wire may be integrally provided.

The flexible LED module according to the first embodiment of the present invention, by providing a connecting frame for supporting two neighboring LED packages physically and electrically mutually, thereby bending in one or multiple directions between the connecting frames or in the connecting frame itself. This makes it possible to implement various non-planar structures such as curves when sequentially fixing multiple LED packages.

In addition, since the manufacturing of the connecting frame and the fixing of the LED package can be produced by the sequential work has the advantage of excellent mass production and workability.

1 is an exploded perspective view of a flexible LED module according to an embodiment of the present invention;
Figure 2 is a cross-sectional view showing the main part showing the insertion and fixing process of the lead and the cut in the flexible LED module according to an embodiment of the present invention,
3 is a perspective view illustrating a connection frame according to various embodiments of the present disclosure;
Figure 4 is a plan view showing the manufacturing and connection state of the flexible LED module according to an embodiment of the present invention,
5 and 6 are side views of the flexible LED module according to another embodiment of the present invention.

Hereinafter, each embodiment of the present invention will be described in detail with reference to the drawings.

Prior to the description, the present invention is described by taking an LED package as an example, but the present invention is not limited thereto, and it is apparent that the present invention may be applied to various semiconductor devices including the LED without limitation.

First, the flexible LED module according to the first embodiment of the present invention includes a plurality of LED packages 100 and a plurality of connection frames 30, each of the connection frame 30 and the first connection portion 31 And a second connecting portion 32 and a connecting portion 35.

The LED package 100 includes an LED chip 101 and two or more leads 102a and 102b extending from the LED chip 101 corresponding to each polarity.

The leads 102a and 102b may be provided in various ways as necessary. For example, two leads 102a and 102b may be provided corresponding to the positive electrode and the negative electrode. As shown in FIG. 1, four leads are provided at two polarities. May be

The connection frame 30 is provided between each LED package 100 to electrically connect and support two adjacent LED packages 100.

The connecting frame 30 includes a first connecting portion 31, a second connecting portion 32, and a connecting portion 35 provided between the first connecting portion 31 and the second connecting portion 32.

The first connecting portion 31 and the second connecting portion 32 respectively fix the LED packages 100 by inserting the leads 102a and 102b of the adjacent LED packages 100.

To this end, the first connecting portion 31 is formed with a first cutout portion 36 into which the first polar lead 102b of any of the neighboring LED packages 100 is inserted and fixed, and in the second connecting portion 32. A second cutout 37 into which the second polar lead 102a of the other LED package 100 is inserted and fixed is formed.

Each cutout 36 or 37 may be provided in various shapes. For example, as shown in FIG. 1, the cutouts 36 and 37 may be provided in a 'c' shape. Alternatively, the shape is not particularly limited as long as the polygonal shape such as a triangle or the circular shape such as the leads 102a and 102b is bent downward to be bent and fixed together with the leads 102a and 102b.

Hereinafter, the fixing process of each of the cutouts 36 and 37 and the leads 102a and 102b will be described using the second cutout 37 and the lead 102a shown in FIGS. 2A to 2C as an example.

First, as shown in (a) of FIG. 2, the second cutout 37 is provided on one side of the second connection part 35 corresponding to the number and positions of the leads 102b.

Next, when the lead 102b is inserted downward from the upper portion of the connecting frame 30, the second cutout 37 is pushed downward by being pushed by the lead 102b. Then, as shown in (c) of Figure 2, through the bending process again bent together with the lead 102b is fixed to the lower surface of the connecting frame 30.

Here, each of the cutouts 36 and 37 may be configured in the form of a hole in the connecting portions 31 and 32 without being folded. In this case as well, the lead 102b will be bent after passing through the cutout 37 to be crimped and fixed under the second connecting part 32. In the case of including the lead 102b is compressed between the second connecting portion 32 and the second cutout 37 and fixed, thereby improving the reliability of the crimp fixing or the electrical connection.

Meanwhile, bending of the lead 102b and the second cutout 37 may be performed in various ways. For example, after the insertion of the lead 102b, each may be bent using a separate device such as a hammer, or after inserting a support between the inserted lead 102b and the connecting frame 30 to fix the separation distance. The die to be bent may be pressurized downward so as to be bent together.

Alternatively, as shown in FIG. 4, when the connecting frame 30 is formed from a disc coil through a press operation, the LED package 100 from the top in the state in which the connecting frame 30 is still fixed to the scrap 200 or the like. After inserting, a plurality of concave bent portions for bending may be formed in the lower molds corresponding to the positions of the cut portions 36 and 37 by varying the bending angle, and may be sequentially pressed through the bent portions to be crimped.

In this case, the scrap 200 may be made in various forms as shown in (c) or (d) of FIG. 4 by removing the connection frame 30 and the LED package 100 through a cutting process after being fixed to each other. The method has a merit that mass production is possible because the manufacturing of the connecting frame 30 and the fixing work with the LED package 100 are sequentially performed through the press work.

Meanwhile, as shown in FIG. 2D, a stopper 105 may be further provided in each of the leads 102a and 102b. This is because the insertion depths of the leads 102a and 102b inserted into the cutouts 36 and 37 are the same, so that when the LED packages 100 are fixed to the connecting frame 30, the LED packages 100 are connected. It is spaced at the same distance from the frame 30 and fixed.

The stopper 105 may be provided in various shapes and positions. For example, as shown in FIG. 2D, the stopper 105 may be provided at the front and rear sides of the leads 102a and 102b (ie, the connection frame 30). In the longitudinal direction) or as shown in FIG. 1.

Alternatively, the stopper 105 may be provided in each of the leads 102a and 102b, or may be provided only in part.

The connection part 35 is provided between the first connection part 31 and the second connection part 32 to electrically connect and support each other.

The connection part 35 may be provided in various shapes. For example, as shown in FIG. 1, the connection part 35 may be provided in the same width and shape as the first connection part 31 and the second connection part 32. As shown in 3 (a), it may be provided with a smaller width, as shown in (b) of Figure 2, may be provided with a wire.

The connection part 35 supports the first connection part 31 and the second connection part 32 physically or electrically, and is provided with a flexible material so that the LED module can be flexibly bent in a predetermined direction.

That is, in the flexible LED module according to the present invention, since the respective connecting frames 30 are spaced apart from each other, the flexible LED module can be bent by the spaced apart structure, as well as the connecting frame 30 itself. In this aspect, in the case of Figure 3 (a), there is an advantage that the bending of the connection portion 35 is much easier, and in the case of Figure 3 (b) it is possible to bend in various directions unlike the other examples described above There is an advantage.

Here, the above-described first connecting portion 31, the second connecting portion 32 and the connecting portion 35 is of course provided with an electrically conductive material.

Hereinafter, as described above, in the flexible LED module according to the first embodiment of the present invention, the connection frame 30 is provided by providing a connection frame 30 that physically and electrically supports two adjacent LED packages 100. Since it is possible to bend in one direction or multiple directions between the 30 or in the connection frame 30 itself, it is possible to implement a variety of forms, such as curves when sequentially fixing a plurality of LED package 100.

In addition, since the production of the connection frame 30 and the fixing of the LED package 100 can be produced by the sequential work has the advantage of excellent mass production and workability.

The flexible LED module according to the second embodiment of the present invention includes an LED package 100 and a connection frame 30, wherein the connection frame 30 includes a third connector 33 and a fourth connector 34. And a flexible wire 40.

Unlike the previous embodiment, the flexible LED module according to the present embodiment, after the third connecting portion 33 and the fourth connecting portion 34 receives the leads 102a and 102b, is pressed and connected to each other, and the connecting portion 35 There is a difference in that the flexible wire 40 is provided so as to be able to be bent in multiple directions.

To this end, the third connection portion 33 has a cylindrical shape at both ends thereof, and the first polar lead 102b of any one of the adjacent LED packages is accommodated, and the fourth connection portion 34 has a cylindrical shape at both ends thereof. It has a shape and accommodates the second polar lead 102a of the other LED package 100.

The third connecting portion 33 or the fourth connecting portion 34 may have a space for accommodating the leads 102a and 102b therein, and may be crimped and fixed in a state where the leads 102a and 102b are accommodated. It may be provided in various shapes as long as it exists. For example, as shown in Figure 5, it may be provided in a cylindrical shape, may be provided in a polygonal shape, or if necessary, as well as both ends may be provided in an open shape. .

In addition, as shown in FIG. 5, the third connecting portion 33 or the fourth connecting portion 34 may be provided integrally with the flexible wire 40, or as shown in FIG. 6. May be

The flexible wire 40 is flexible and is provided between the third connecting portion 33 and the fourth connecting portion 34 to electrically connect and support each other.

In the flexible LED module according to each of the above-described embodiments, the LED packages are electrically connected and supported by the connecting frames in sequence, so that not only the planar but the non-planar structure can be implemented as a whole, and the leads of each LED package are connected to the respective connecting frames. Since it is not fixed through an adhesive structure such as soldering, it is not only environmentally friendly but also has an advantage that it can be easily replaced even when some LED packages need to be replaced.

30: connecting frame 31: first connection
32: second connection part 33: third connection part
34: fourth connection part 35: connection part
35 ': wire 36: first incision
37: second incision 40: flexible wire
100: LED package 101: LED chip
102a, 102b: Lead 105: Stopper

Claims (8)

A plurality of LED packages having an LED chip and at least two leads extending corresponding to each polarity from the LED chip;
And a plurality of connection frames provided between each LED package to electrically connect and support two adjacent LED packages.
Each connection frame,
A first connection portion having a first cutout portion into which a first polar lead of any one of the adjacent LED packages is inserted and fixed;
A second connection portion having a second cutout portion into which the second polarity lead of the other LED package is inserted and fixed;
And a connection part provided between the first connection part and the second connection part to electrically connect and support each other.
When the LED package is fixed on the upper portion of each of the connecting portion, each lead is pushed through each of the incision, and then bent together with each of the incision is flexible to be fixed to the lower portion of the connecting portion ( Flexible) LED module. The method of claim 1,
The first connector, the second connector and the connecting portion is provided in a plate shape, the connecting portion is a flexible LED module, characterized in that the width is provided narrower than the first and second connecting portion. The method of claim 1,
The flexible LED module, characterized in that the connection portion is provided with a wire (wire). 4. The method according to any one of claims 1 to 3,
The flexible LED module, characterized in that the connecting portion is provided with a flexible material to enable bending. The method of claim 1,
The cut-out LED module, characterized in that provided in the 'c' shape. The method of claim 1,
Each of the leads has a flexible LED module, characterized in that the LED package has a stopper protruding in the horizontal direction in the longitudinal direction so as to be spaced apart fixed at a predetermined interval on the upper portion of the connecting frame. A plurality of LED packages having an LED chip and at least two leads extending corresponding to each polarity from the LED chip;
And a plurality of connection frames provided between each LED package to electrically connect and support two adjacent LED packages.
Each connection frame,
A third connection portion having a cylindrical shape at both ends and accommodating a first polar lead of any one of the adjacent LED packages;
A fourth connection portion having a cylindrical shape at both ends and accommodating a second polar lead of the other LED package;
Including a flexible flexible wire provided between the third connection portion and the fourth connection portion to electrically connect and support each other,
The flexible LED module, characterized in that the ends of the lead and the flexible wire is accommodated in each of the connecting portion and then compressed together. The method of claim 7, wherein
The flexible LED module, characterized in that the third connecting portion, the fourth connecting portion and the flexible wire are provided integrally.

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