WO2020209571A1

WO2020209571A1 - Lens-attached flexible led strip light, device for manufacturing same, and method for manufacturing same

Info

Publication number: WO2020209571A1
Application number: PCT/KR2020/004667
Authority: WO
Inventors: 신종업
Original assignee: 주식회사 아이엘이에스
Priority date: 2019-04-08
Filing date: 2020-04-07
Publication date: 2020-10-15

Abstract

The present invention provides a lens-attached flexible led strip light comprising: a tray; a printed circuit board disposed inside the tray; an LED light source disposed on the upper part of the printed circuit board; a support disposed on the upper part of the printed circuit board in the periphery of the LED light source; a lens disposed on the upper part of the LED light source; a reflective cup surrounding the LED light source and the lens; and a filling material disposed on the upper part of the printed circuit board inside the tray, other than on the support and the part surrounded by the reflective cup.

Description

Lens-attached flexible LED strip lighting, manufacturing apparatus and manufacturing method thereof

The present invention relates to a lens-attached flexible LED strip lighting, and in particular, a flexible LED strip lighting having a waterproof function by aligning various types of lenses on the top of the LED light source, and sealing and curing by injecting a silicone filler between them. It relates to a process of manufacturing and a mechanical device that performs the process.

The conventional technology is a product without a lens on the top of the LED light source, and a general flexible LED strip light in which the radiation angle of the light source spreads at a certain angle, and a rod-shaped LED strip with a rigid lens such as polycarbonate (PC) or glass on the top of the LED. There are lights.

1 and 2 are photographs showing conventional flexible LED strip lighting and rod-shaped LED strip lighting, respectively.

As shown in FIGS. 1 and 2, in flexible LED strip lighting without a lens, it is impossible to adjust the radiation angle of the light source and light efficiency is low, and rigid lens consistency is destroyed in rod-shaped LED strip lighting with a lens. Or, the degree of flexible bending in the normal direction is limited, and it is difficult to reduce the size of the component, thereby increasing the volume of the finished product. In addition, a lenticular lens array cover or a diffusion plate cover may be placed on the top of the LED light source to obtain uniform light. In this case, a mechanism structure that is not flexible is provided. In other words, there is a disadvantage in that the mobility for manufacturing a long product is also inferior because the bulky and rigid rod-shaped configuration is inevitable at high cost.

As described above, the conventional flexible LED strip lighting has flexibility, but it is difficult to change the radiation angle of the light source or maximize the light efficiency due to the absence of a lens. And, in the case of the conventional rod-shaped LED strip lighting, it is possible to adjust the light efficiency and the radiation angle by attaching a lens to the light source, but the lens is made of a hard material, so it functions as a stick-shaped hard strip lighting. There is a difficulty in that there is no flexibility to bend it to the right or to give it left or right movement. In addition, due to the complex structure and size of the lens, which is an optical unit, and the shape of the light source of the LED element in the form of a package, the structure of the finished product is complicated and there are restrictions on miniaturization.

As a solution to these problems or limitations, in the present invention, 1) a soft silicon lens is adopted, 2) a lens having various structures such as circular, elliptical, polygonal, etc. for adjusting the radiation angle is applied, and 3) a simple and reduced structure Adoption of support (base), reflective cup (Boat), liquid silicon injection (silicon filler) to obtain flexibility, 4) aluminum coating inside reflective cup/high reflective silicon material tinted treatment application to maximize light efficiency, 5) Addition of an integrated reflective cup to increase productivity and reduce manufacturing cost by simplifying the process, 6) The completeness of the product is represented by the alignment and consistency of the LED point light source and the center of the lens. Adoption of Chip Scale Package LED for application of, 8) Surface treatment technology (random pattern, sand blast treatment, diffusion sheet application) at the lower part of the lens to make the light distribution uniform. The final product, a linear flexible LED light with integrated lenses, was produced.

The present invention is to solve this problem, in the lens-attached flexible LED strip lighting including an LED light source with a symmetrical/asymmetrical, spherical/aspherical lens, etc., improving the consistency and alignment between the lens and the LED element It is an object of the present invention to provide a lens-attached flexible LED strip lighting that optimizes light efficiency and irradiation uniformity, and a manufacturing apparatus and manufacturing method thereof.

In order to achieve the above object, the present invention, a tray; A printed circuit board disposed inside the tray; An LED light source disposed on the printed circuit board; A support disposed on the printed circuit board around the LED light source; A lens disposed above the LED light source; A reflection cup surrounding the LED light source and the lens; It provides a lens-attached flexible LED strip lighting including a filler disposed on the printed circuit board inside the tray excluding a portion surrounded by the support and the reflective cup.

In addition, the lens may be made of silicon.

In addition, the lens may have a circular, elliptical or asymmetric polygonal shape.

In addition, a scattering pattern may be formed on a rear surface of the lens to which light from the LED light source is incident.

In addition, the inner surface of the reflective cup may be coated with aluminum or white colored silicon.

In addition, the support and the reflective cup may be integrally formed.

On the other hand, the present invention, the loading unit for placing each of the printed circuit board and the support on which the LED light source is mounted in a fixed frame; An alignment attachment part for aligning the center of the LED light source with the center of the support and attaching the support to the printed circuit board using an adhesive; An adhesive applicator for applying the adhesive to an upper surface of the printed circuit board; A control unit that transfers the printed circuit board and the fixing frame on which the support is placed, applies the adhesive to the upper surface of the printed circuit board, and adsorbs the support to transfer and align the fixing frame from the fixing frame to the upper side of the printed circuit board. It provides an LED strip assembly device for a lens-attached flexible LED strip lighting including a.

In addition, alignment of the LED light source and the support, application of the adhesive, and attachment of the printed circuit board and the support may be performed automatically and sequentially.

In addition, the alignment attachment part may match the reflective cup to the support and insert a lens into the upper portion of the LED light source inside the reflective cup.

On the other hand, the present invention includes a loading unit for placing an LED strip on which an LED light source is attached to a printed circuit board, a support, a lens, and a reflective cup on the support plate; A robot unit for transferring the base plate on which the LED strip is placed; A coating unit for applying a filler on the printed circuit board; A lamp unit supplying light for curing the filler material; It provides a filler injection curing apparatus for lighting a lens-attached flexible LED strip including a control unit for controlling the loading unit, the robot unit, the application unit, and the lamp unit.

In addition, the lamp unit may supply infrared rays or ultraviolet rays.

On the other hand, attaching a support to the peripheral portion of the LED light source above the printed circuit board disposed inside the tray; Matching a reflective cup to the support; Inserting a lens onto the LED light source inside the reflection cup; It provides a method of manufacturing a lens-attached flexible LED strip lighting comprising the step of applying a filler to an upper portion of the printed circuit board inside the tray excluding a portion surrounded by the support and the reflective cup.

In addition, the manufacturing method of the lens-attached flexible LED strip light may further include curing the filler applied on the printed circuit board using infrared or ultraviolet rays.

The present invention is to produce a new structure of a flexible LED strip light with a lens using a silicon lens and maximize product productivity, improve target light efficiency by concentrating light sources for specific application areas, automate product manufacturing, and compact product integration through process integration. , It has the effect of improving the matching/alignment of the lens and the LED light source, and selectively irradiating light to a specific target area.

1 and 2 are photographs showing a conventional flexible LED strip lighting and a rod-shaped LED strip lighting, respectively.

3 is an exploded perspective view of a lens-attached flexible LED strip light according to an embodiment of the present invention.

4 is a perspective view of another lens-attached flexible LED strip light according to an embodiment of the present invention.

5 is a cross-sectional view taken along line V-V of FIG. 4.

6 shows a) a support, b) a reflective cup (before coating a reflective material), c) a lens, d) a tray, e) a printed circuit board and an LED light source of a lens-attached flexible LED strip light according to an embodiment of the present invention. Photo showing.

7 is a photograph showing a) an integrated printed circuit board and a reflection cup, b) a finished product of a lens-attached flexible LED strip lighting according to an embodiment of the present invention.

8 is a photograph showing a) a rigid rod-shaped finished product, b) a lighting state, c) a power supply device, d) a finished product before cutting of a lens-attached flexible LED strip lighting according to an embodiment of the present invention.

9 is a view showing an LED strip assembly device for a lens-attached flexible LED strip lighting according to an embodiment of the present invention.

10 is a) a top view, b) a front view, c) a side view, d) a perspective view showing an LED strip assembly apparatus for a lens-attached flexible LED strip lighting according to an embodiment of the present invention.

11 and 12 are diagrams and flowcharts illustrating a process of assembling an LED strip of a lens-attached flexible LED strip light according to an embodiment of the present invention, respectively.

13 is a view showing a filler injection curing apparatus for a lens-attached flexible LED strip lighting according to an embodiment of the present invention.

14 is a view showing an aluminum plate as a support plate of a filler injection curing apparatus for a lens-attached flexible LED strip lighting according to an embodiment of the present invention.

15 is a view showing an application portion of a filler injection curing apparatus for a lens-attached flexible LED strip lighting according to an embodiment of the present invention.

16 is a view showing a lamp part of a filler injection curing apparatus for a lens-attached flexible LED strip lighting according to an embodiment of the present invention.

17 is a flow chart showing a filler injection curing process of a lens-attached flexible LED strip lighting according to an embodiment of the present invention.

18 is a flowchart illustrating a manufacturing process of a lens-attached flexible LED strip light according to an embodiment of the present invention.

19 is a cross-sectional view of a) a symmetrical tray and b) an asymmetrical tray of a lens-attached flexible LED strip lighting according to an embodiment of the present invention.

20 is a rear view, a top view, and a perspective view of a) a circular support, b) an oval support, c) a polygon support of a lens-attached flexible LED strip lighting according to an embodiment of the present invention.

21 is a top view, perspective view, and two side views of a) circular reflective cup, b) oval reflective cup, c) asymmetric polygonal reflective cup of a lens-attached flexible LED strip light according to an embodiment of the present invention.

22 is a top view and a side view of an integrated support and a reflection cup of a lens-attached flexible LED strip lighting according to an embodiment of the present invention.

23 is a top view, perspective view, and two side views of a) a circular lens, b) an elliptical lens, c) an asymmetric polygonal lens of a lens-attached flexible LED strip light according to an embodiment of the present invention.

24 is a) a plan view, b) a perspective view of a printed circuit board of a lens-attached flexible LED strip lighting according to an embodiment of the present invention.

25 is a circuit diagram of a) a standard constant current method, b) a voltage division constant current method, c) a constant voltage method, d) a constant current method of a lens-attached flexible LED strip lighting according to an embodiment of the present invention.

26 is a view showing a) a lens, b) a scattering pattern of a lens-attached flexible LED strip light according to an embodiment of the present invention.

27 is a view showing a) intensity according to a beam angle, b) intensity according to a radiation angle of a circular lens of a lens-attached flexible LED strip light according to an embodiment of the present invention.

28 is a view showing a) intensity according to a beam angle, b) intensity according to a radiation angle of an elliptical lens of an LED strip lighting according to an embodiment of the present invention.

29 is a view showing a) intensity according to a beam angle, b) intensity according to a radiation angle of an asymmetric polygonal lens of an LED strip lighting according to an embodiment of the present invention.

30 is a view showing a lens into which a diffusion sheet of a lens-attached flexible LED strip light is inserted according to an embodiment of the present invention.

31 is a view showing a) a lens and b) a reflection cup of a lens-attached flexible LED strip light according to an embodiment of the present invention.

FIG. 32 is a view showing a) a lens of a first example, a reflective cup, a support, and b) a lens, a reflective cup, and a support of a second example of a lens-attached flexible LED strip light according to an embodiment of the present invention.

33 is a view showing a) circular, b) elliptical, c) polygonal reflection cup of a lens-attached flexible LED strip lighting according to an embodiment of the present invention.

Hereinafter, the present invention will be described with reference to the accompanying drawings.

3 is an exploded perspective view of a lens-attached flexible LED strip light according to an embodiment of the present invention, FIG. 4 is a perspective view of another lens-attached flexible LED strip light according to an embodiment of the present invention, and FIG. 5 is a cut in FIG. It is a cross-sectional view along the line VV.

3, 4, and 5, the lens-attached flexible LED strip lighting 110 according to the embodiment of the present invention, various types of lenses 124 are aligned on the top of the LED light source 122 It is an LED strip product that has a waterproof function by injecting a silicone filler 134 in between and sealing and curing. It controls the directionality of the LED light source 122 by adopting a symmetric/asymmetric, spherical/aspherical lens 124, etc. As a new product, it is a product that responds to the needs of consumers that have evolved one step further from the existing standard type.

The length of the product is continuously connected and is designed to be cut to the required length.

To this end, the lens-attached flexible LED strip lighting 110, a printed circuit board (PCB) 120, an LED light source (LED chip) 122, a lens 124, a filler 134, a base (base) 140, a tray 142, and a reflective cup (boat) 144.

Specifically, the printed circuit board 120 is disposed inside the tray 142 made of a silicon material, and a plurality of LED light sources 122 spaced apart at predetermined intervals are disposed on the printed circuit board 120.

A diode 126, a driver 128, and a resistor 130 may be further disposed on the printed circuit board 120, and a connector 132 may be disposed at an end of the printed circuit board 120.

On top of each LED light source 122, a lens 124 made of a soft material such as silicon, polycarbonate (PC), or a hard material such as glass is disposed, and each LED light source 122 ) On the upper portion of the printed circuit board 120 at the periphery (circumference), a support 140 made of silicon is disposed, and the support 140 helps align the LED light source 122 and the lens 124 Plays a role.

On the upper portion of the printed circuit board 120 around each LED light source 122, a support 140, an LED light source 122, and a reflection cup 144 surrounding the lens 124 are disposed, the reflection cup 144 It serves to reflect the light of the LED light source 122 in a specific direction in the front.

To this end, the reflective cup 144 may be coated with a reflective material on its inner surface, or may be made of white colored silicon.

On the upper portion of the printed circuit board 120 inside the tray 142 except for the portion surrounded by the support 140 and the reflective cup 144 (including the LED light source 122), a filler 134 made of silicon is The filler material 134 may be cured by infrared or ultraviolet rays, and the sidewall of the tray 142 serves as a dam preventing the filler material 134 from overflowing. The filler material 134 is ultraviolet rays and ultraviolet rays. It may contain a two-component or one-component silicone that is resistant to moisture penetration.

Although not shown, a silicon layer may be disposed on the top layer of the lens-attached flexible LED strip light 110, and by mixing a dye material that enables wavelength shifting in the silicon layer, light of blue wavelength harmful to human eyes is removed. can do.

Accordingly, for the red LED light source, it is possible to manufacture lighting that emits light of a specific wavelength necessary for plant growth.

The main components of such a lens-attached flexible LED strip light, its manufacturing apparatus, and its manufacturing method are 1) a wall (Dam) that prevents overflow of the silicon filler 134 injected by both side walls of the silicon tray 142 Function, 2) a function of injecting and curing material to fix the support 140, which is located around the LED light source 122 and helps to align the lens 124 with the center of the LED light source 122, 3) A function of matching the reflection cup 144 and the lens 124 that includes a reflective film and allows the lens 124 to be seated, 4) a function of irradiating an infrared heat source or an ultraviolet light source, 5) measuring electrical characteristics And 6) measuring optical properties. In conclusion, it is a technical configuration for an automated manufacturing method and apparatus including the above main functions.

6 shows a) a support, b) a reflective cup (before coating a reflective material), c) a lens, d) a tray, e) a printed circuit board and an LED light source of a lens-attached flexible LED strip light according to an embodiment of the present invention. 7 is a photograph showing a) an integrated printed circuit board and a reflective cup, b) a finished product of a lens-attached flexible LED strip light according to an embodiment of the present invention, and FIG. 8 is a diagram of the present invention. This is a photograph showing a) a rigid rod-type finished product, b) a lighting state, c) a power supply device, and d) a finished product before cutting of the lens-attached flexible LED strip lighting according to the embodiment.

9 is a view showing an LED strip assembly device for a lens-attached flexible LED strip light according to an embodiment of the present invention, Figure 10 is a LED strip assembly device for a lens-attached flexible LED strip light according to an embodiment of the present invention A) a top view, b) a front view, c) a side view, and d) a perspective view, which will be described with reference to FIGS. 3 to 5 together.

9 and 10, in the manufacturing step by the LED strip assembly device 310, the loss of the LED light source 122 only when the center of the LED light source 122 and the center of the light incident portion of the lens 124 match. There is no, and the light efficiency of the product can be maximized. Therefore, it serves to attach the support 140 to hold the reflective cup 144 surrounding the lens 124 on the printed circuit board 120 on which the LED light source 122 is mounted, at the correct position.

Specifically, the LED strip assembly device 310, the support loading unit 320, the first and second

PCB loading units

322, 324, the adhesive application unit 326, the alignment attachment unit 328, the application control unit ( 330, a display unit 332, first and

second switches

334 and 336, a control unit 338, and an air supply unit 340.

The support loading part 320 places the support 140 in the fixing frame, and the first and second

PCB loading parts

322 and 324 place the printed circuit board 120 in the fixing frame, and the support loading part 320 ) And the first and second

PCB loading units

322 and 324 may be arranged side by side in parallel.

Alignment attachment part 328 is arranged so that the center of the LED light source 122 mounted on the printed circuit board 120 and the center of the support 140 are aligned, and the support 140 is adsorbed and transferred using an adhesive. ) Is attached to the printed circuit board 120.

The adhesive application unit 326 applies an adhesive such as epoxy, silicone, or an instant adhesive to a designated area on the upper portion of the printed circuit board 120.

The control unit 338 transfers the fixing frame on which the support 140 is placed and the fixing frame on which the printed circuit board 120 is placed, applies an adhesive to the upper portion of the printed circuit board 120, and adsorbs the support 140 It performs a general control function to transfer and align.

This LED strip assembly device 310 automatically sequentially proceeds with the alignment of the printed circuit board 120 and the support 140, applying an adhesive, and attaching the printed circuit board 120 and the support 140 in order to increase productivity. Can be improved.

11 and 12 are diagrams and flowcharts illustrating an LED strip assembly process of a lens-attached flexible LED strip light according to an embodiment of the present invention, respectively, and will be described with reference to FIGS. 3 to 5, respectively.

As shown in FIGS. 11 and 12, a printed circuit board 120 on which an LED light source 122 is electrically mounted (SMT) is loaded on the tray 142 (st112), and a support 140 is placed on the fixing plate. After loading (st114), and applying an adhesive (epoxy, instant adhesive, silicone, etc.) to the outer display of the LED light source 122 in order to align and attach the support 140 (st116), and the support 140 on the fixing plate ) Is adsorbed with an adsorber, moved to the printed circuit board 120, aligned and attached (st118), and the adhesive is cured with heat or light (st120).

Thereafter, the support 140 and the reflective cup 144 may be aligned by inserting the lens 24 in a matched state.

13 is a view showing a filler injection curing apparatus for a lens-attached flexible LED strip lighting according to an embodiment of the present invention, and FIG. 14 is a filler injection curing apparatus for a lens-attached flexible LED strip lighting according to an embodiment of the present invention. It is a view showing an aluminum plate, which is a base plate of, and FIG. 15 is a view showing an application part of a filler injection curing apparatus for a lens-attached flexible LED strip lighting according to an embodiment of the present invention, and FIG. It is a view showing the lamp part of the filler injection curing device of the lens-attached flexible LED strip lighting, and FIG. 17 is a flow chart showing the filler injection curing process of the lens-attached flexible LED strip lighting according to an embodiment of the present invention, FIG. It will be described with reference to 3 to 5 together.

13 to 17, the filler injection curing device 510 is attached to the LED strip after combining the lens 124 and the reflective cup 144 inserted on the printed circuit board 120 inside the tray 142. The printed circuit board 120, the LED light source 122, the base 140, the reflective cup 144, and the lens 124 are integrated with a liquid transparent silicone filler 134 to form an integrated structure. It can be cured to complete the lens-attached flexible LED strip lighting.

Specifically, the filler injection curing device 510 includes a loading unit 520, a robot unit 524, an application unit 526, a lamp unit 528, an unloading unit 530, a control unit 532, and a display unit ( 534).

Although not shown, the filler injection curing device 510 may further include a distribution unit equipped with a vacuum pump for supplying a filler 134 such as silicone and suppressing the generation of bubbles in the supplied filler 134. When two-component silicone is used as the filler 134, the filler injection and curing apparatus 510 may further include a mixing unit supplied at a predetermined ratio using a gear.

The loading unit 520 includes an assembled tray 142, a printed circuit board 120, an LED light source 122, a support 140, a lens 124, and an LED strip of the reflective cup 144. ).

The application unit 526 may include a mixer unit that helps mixing the supplied filler material 134 and a nozzle for discharging the filler material 134, and applies a certain amount of the filler material 134 at a certain position for a certain time. do.

In the base plate 522, the integrated tray 142, the printed circuit board 120, the LED light source 122, the base 140, the lens 124, and the LED strip of the reflective cup 144 are mounted and applied. It serves to improve the flatness and uniformity of the filled filler 134, and can be used as a loading and unloading auxiliary device that improves workability and facilitates position control when applying the filler 134 to various products. It may be made of oxidized aluminum.

Although not shown, the filler injection curing device 510 may further include an electric device having an automatic control function to set and operate a supply amount, a position, and a coating time when the filler 134 is injected.

The robot unit 524 transfers the support plate 522 on which the LED strip is seated before and after the filler 134 is applied, and may include a roller.

The lamp unit 528 supplies infrared rays for curing the filler 134, and may include an infrared heating wire arranged in parallel on the base plate 522, and the controller 532 is configured to set the temperature to the filler 134 ) It can deliver uniform temperature to the entire surface.

In another embodiment, the lamp unit 528 may supply ultraviolet rays to cure the heat/photo-curable filler (liquid silicone/urethane) 134, while the filler 134 may be fixed or moved while the ultraviolet rays are supplied. , It is possible to cure the filler 528 within a relatively short time. In addition, the size or volume of the lamp unit 528 may be reduced by using an ultraviolet LED array and a movable conveyor.

Although not shown, the filler injection curing device 510 is disposed adjacent to the unloading unit 530 and measures the electrical and optical properties of the lens-attached flexible LED strip lighting 110 after the filler 134 is cured. It may further include a measurement evaluation unit. The tray 142 integrated through the loading unit 520, the printed circuit board 120, the LED light source 122, the support 140, the lens 124, the reflection cup ( After loading the base plate 522 on which the LED strips of 144 are arranged (st210), waiting for the buffer zone (st212), and surrounded by the base 140 and the reflection cup 144 through the application unit 526, the LED light source A filler 134 is applied (st214) on the upper portion of the printed circuit board 120 inside the tray 142 outside the portion including the 122 and the lens 124, and infrared rays are applied through the lamp unit 528. After irradiation on 134) to dry the filler 134 (st216), waiting for the buffer zone (st218), the tray 142 integrated and coated with the filler 134, the printed circuit board 120, the LED light source 122 , The support 140, the lens 124, and the support plate 522 on which the reflection cup 144 is disposed is unloaded (st220).

The manufacturing process of such a lens-attached flexible LED strip light will be described with reference to the drawings.

18 is a flowchart illustrating a manufacturing process of a lens-attached flexible LED strip light according to an embodiment of the present invention, and will be described with reference to FIGS. 3 to 5.

As shown in FIG. 18, the lens-attached flexible LED strip lighting 110 according to an embodiment of the present invention largely includes a lens module assembly step (st314), a strip assembly step (st324), a filler coating and curing step (st330). It is manufactured through.

First, an inspection is performed on the printed circuit board 120 to which the LED light source 122 is attached (st310), and if a defect occurs, rework is performed (st312).

Thereafter, the support 140 having both side walls is formed (st316), the formed support 140 is inspected (st320), and if a defect occurs, rework is performed (st322).

Then, the lens 124 is disposed above each LED light source 122 to assemble the lens module (st314), and performs an inspection on the assembled lens module (st318), and if a defect occurs, rework is performed ( st322).

Specifically, electrical elements such as an LED light source 122, a diode 126, a driver 128, and a resistor 130 are mounted on the printed circuit board 120. In order to secure flexible characteristics, the printed circuit board 120 ) May have a thickness of 0.3mm or less or a flexible substrate may be used.

In the case of manufacturing a rod-shaped (rigid) strip light having durability against high heat, a substrate having a thickness of 1 mm to 1.6 mm made of aluminum metal or FR4 may be used as a printed circuit board.

After the printed circuit board 120 is prepared, the center of the support 140 is positioned around the LED light source 122 so that the lens 124 can be aligned with the center of the LED light source 122 Align it to the center of (122) and fix it with an instant adhesive.

The reflective cup 144 can be fastened to the upper part of the base 140, and the inner surface of the reflective cup 144 may be coated with aluminum or white silicone to increase light efficiency, and the reflective cup 144 It may be made of silicon having this white color.

The reflective cup 144 of white silicon may have a reflectance 3% to 5% higher than that of the reflective cup 144 coated with aluminum.

The lens 124 is mounted inside the reflective cup 144, and the lens 124 is fixed to the reflective cup 144 by coating a material such as silicon on the lower outer surface of the lens 124 and the lower inner surface of the reflective cup 144. , The lower part of the combination of the lens 124 and the reflective cup 144 may be fastened to the upper part of the support 140 to be fixed.

This lens module assembly step (st314) is a first process of matching the center of the LED light source 122 with the lower center of the lens 124 and electrically and mechanically completing the unit corresponding to the minimum unit of the completed lighting product. , It may be performed in the support assembly 310.

Thereafter, a plurality of printed circuit boards 120 of the smallest unit on which the LED light source 122 and the lens 124 are mounted are connected to each other using the male and female connectors 132 at both ends, and fixed by pressing with a fixing means such as a clip. , Arranged inside the tray 142 to assemble the LED strip (st324), the assembled tray 142, the printed circuit board 120, the LED light source 122, the lens 124, the LED of the base 140 The strip is inspected (st326), and if a defect occurs, rework is performed (st328).

Here, in order to improve durability, a transparent film (PC, PET) or metal strip (stainless steel) of a predetermined length may be inserted between the tray 142 and the printed circuit board 120 as a back wrap film. .

In addition, the LED strip of the tray 142, the printed circuit board 120, the LED light source 122, the lens 124, and the support 140 has a power supply wire connected to one end and a dummy connector at the other end. It is connected to prevent the filling material 134 from entering and applying.

In another embodiment, a plurality of LED strips may be connected by soldering.

Meanwhile, barrier walls for preventing the flow of the filler 134 may be formed at both ends of the LED strip, and the barrier walls may be made of silicone, heat resin, or a solid flow prevention kit.

Thereafter, the inside of the tray 142 is surrounded by the support 140 and the reflective cup 144 on the upper portion of the printed circuit board 120 and the filler 134 on the outside of the portion including the LED light source 122 and the lens 124 And cured (st330), the tray 142 on which the filler 134 is applied, the printed circuit board 120, the LED light source 122, the lens 124, and the support 140 are inspected. (st332), if a defect occurs, rework is performed (st334).

Specifically, the tray 142 having both side walls is disposed on the base plate 522 in a certain arrangement, and the filler 134 can be applied while skipping each lens 124, the step of applying and curing the filler 134 (st330) may be performed in the filler coating and curing device 510.

For example, the application part 526 of the filler coating and curing device 510 in which two-liquid silicone is mixed and air bubbles are minimized may apply a fixed amount of filler 134 at regular time intervals. In this case, the tray 142 ) And the structure of the lens 124, the discharge amount and discharge time of the filler 134 may be determined.

In addition, after one or multiple application operations, the entire base plate 522 is moved to a region where an infrared heat source is arranged, and the liquid filler 134 is cured using a heat source.

This curing is repeated two or three times depending on the case, so that the air bubbles inside the filler 134 can be effectively removed.

In addition, the filler 134 may be a Sylgard 184 elastomer two-component silicone and a substitute thereof, and may have a characteristic without discoloration or deterioration even when exposed to ultraviolet rays for a long time. In addition, when a primer (e.g., OS1200), which is strong against waterproofing and dustproofing, is added to the filler 134 or applied to the outer surface of the reflective cup 144, the inner surface of the tray 142, and the upper surface of the printed circuit board 120, a metal thin film or plastic The interfacial adhesion between the injection product and the filler 134 may be strengthened.

Thereafter, the completed lens-attached flexible LED strip lighting is packaged (st336) and shipped (st338).

A specific configuration of such a lens-attached flexible LED strip lighting will be described with reference to the drawings.

19 is a cross-sectional view of a) a symmetrical tray and b) an asymmetrical tray of a lens-attached flexible LED strip lighting according to an embodiment of the present invention, and will be described with reference to FIGS. 3 to 5 together.

As shown in FIG. 19, both side walls of the tray 142 of the lens-attached flexible LED strip light 110 are of the same shape and height, depending on the role of the wall to prevent the filling material 134 from overflowing. It can be formed in asymmetrical shape and different heights.

20 is a rear view, a top view and a perspective view of a) a circular support, b) an elliptical support, c) a polygonal support of a lens-attached flexible LED strip light according to an embodiment of the present invention, and FIGS. 3 to 5 It will be described with reference to together.

As shown in FIG. 20, the support 140 of the lens-attached flexible LED strip light 110 has a circular, elliptical, or polygonal shape according to the shape and arrangement of the LED light source 122 and the lens 124. I can.

21 is a top view, perspective view, and two side views of a) circular reflective cup, b) oval reflective cup, c) asymmetric polygonal reflective cup, of a lens-attached flexible LED strip lighting according to an embodiment of the present invention. FIGS. This will be explained with reference to 5 together.

As shown in FIG. 21, the reflection cup 144 of the lens-attached flexible LED strip light 110 may have a circular, elliptical, or asymmetric polygonal shape according to the shape or illumination direction of the LED light source 122.

22 is a top view and a side view of an integrated support and a reflection cup of a lens-attached flexible LED strip light according to an embodiment of the present invention, and will be described with reference to FIGS. 3 to 5.

As shown in FIG. 22, the support 140 and the reflection cup 144 of the lens-attached flexible LED strip light 110 may be integrally formed to simplify the manufacturing process.

If the base 140 and the reflective cup 144 are formed separately, the manufacturing process becomes complicated and the manufacturing time and manufacturing cost may increase, and if the reflective cup 144 is coated with a reflective film of a metallic material, defects may increase. I can.

On the other hand, when the support 140 and the reflective cup 144 are integrally formed of white silicon, the manufacturing process is simplified, manufacturing time and manufacturing cost are reduced, and reflection efficiency may be improved by 3% or more.

23 is a top view, a perspective view, and two side views of a) a circular lens, b) an elliptical lens, c) an asymmetric polygonal lens of a lens-attached flexible LED strip lighting according to an embodiment of the present invention, and FIGS. 3 to 5 together It will be described with reference

As shown in FIG. 23, the lens 124 of the lens-attached flexible LED strip light 110 may have a circular, elliptical, or asymmetric polygonal shape depending on the shape or illumination direction of the LED light source 122.

The symmetrical tray 142 of FIG. 19 may be applied to a) a circular reflecting cup or b) an oval reflecting cup of FIG. 21, and a) a circular lens or b) an elliptical lens of FIG. 23, and the asymmetric tray 142 is It can be applied to c) an asymmetric polygonal reflection cup of FIG. 21 and c) an asymmetric polygonal lens of FIG. 23.

24 is a) a plan view and b) a perspective view of a printed circuit board of a lens-attached flexible LED strip lighting according to an embodiment of the present invention, and will be described with reference to FIGS. 3 to 5.

As shown in FIG. 24, a plurality of LED light sources 122 spaced apart from each other are disposed on the printed circuit board 120 of the lens-attached flexible LED strip lighting 110.

25 is a circuit diagram of a) standard constant current method, b) voltage division constant current method, c) constant voltage method, d) constant current method of a lens-attached flexible LED strip lighting according to an embodiment of the present invention, and FIGS. 3 to 5 are also shown. It will be described with reference.

As shown in FIG. 25, in the lens-attached flexible LED strip lighting 110, seven LED light sources 122 to which a constant current is applied to a power voltage of 24V are connected in series, or a constant current is applied to the distributed power voltage of 24V. The applied 7 LED light sources 122 are connected in series, or the 7 LED light sources 122 are connected in series with a constant voltage applied to a power voltage of 140V, or 14 LED light sources applied with a constant current applied to a power voltage of 48V (122) may have a circuit configuration connected in series.

Specifically, a) the standard constant current circuit is designed to have a product protection function against external voltage and current influences for each printed circuit board 120 of the basic unit, and a voltage of 24 V DC and a constant current of 250 mA are applied to It has a configuration to supply, and basically can be configured as a series arrangement of 6 to 8 3V starting LED light source 122, the fluctuation of the constant current value can be adjusted by the resistance value (R1).

b) Voltage division constant current type circuit has a configuration for protection of the product when overvoltage flows from the power supply device, and a method of lowering the maximum voltage by dividing the voltage in two can be used. Two resistors (R2, R3) Can be configured by adding.

c) The circuit of the constant voltage method may have a configuration in which the voltage applied to the product is constant and the current flowing through it is changed. It may be used when a large amount of LED light sources 122 are to be driven with a single power supply, and 140V ~ When the DC voltage of 170V is applied, 300 LED light sources 122 of 4.5A can be driven.

d) The constant current circuit may have a structure in which the supply voltage is increased and the number of connected LED light sources 122 is increased, and 14 LED light sources 122 can be driven with a DC voltage of 48V.

The lens-attached flexible LED strip lighting 110 has a unit length of 1.5m to 3m, and can be used by connecting or cutting such a unit length.

In addition, the plurality of LED light sources 122 of the lens-attached flexible LED strip lighting 110 may have a uniformity of 1.5 steps or less.

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26 is a view showing a) a lens and b) a scattering pattern of a lens-attached flexible LED strip light according to an embodiment of the present invention, and will be described with reference to FIGS. 3 to 5 together.

As shown in FIG. 26, in the lens-attached flexible LED strip lighting 110, uniformity is achieved by scattering the light of the LED light source 122 on the rear surface of the lens 124 into which the light of the LED light source 122 is incident. To improve, a scattering pattern (random pattern, sandblasting, microlens structuring, etc.) composed of a plurality of protrusions may be formed.

FIG. 27 is a view showing a) intensity according to a beam angle, b) intensity according to a radiation angle of a circular lens of a lens-attached flexible LED strip lighting according to an embodiment of the present invention, see FIGS. 3 to 5 together This will be explained.

As shown in FIG. 27, the light of the LED light source 122 incident on the circular lens of the lens-attached flexible LED strip lighting 110 according to the embodiment of the present invention may have a radiation angle of 15 degrees, and the circular lens Light passing through may have a relatively narrow and symmetrical intensity depending on the directivity and radiation angles.

28 is a view showing a) intensity according to a beam angle, b) intensity according to a radiation angle of an elliptical lens of an LED strip lighting according to an embodiment of the present invention, and will be described with reference to FIGS. 3 to 5.

As shown in FIG. 28, the light of the LED light source 122 incident on the elliptical lens of the lens-attached flexible LED strip lighting 110 according to the embodiment of the present invention may have a radiation angle of 20 degrees to 45 degrees. , Light passing through the elliptical lens may have a relatively wide and symmetrical intensity depending on the beam angle and the radiation angle.

FIG. 29 is a diagram showing a) intensity according to a beam angle, b) intensity according to a radiation angle of an asymmetric polygonal lens of an LED strip lighting according to an embodiment of the present invention, and will be described with reference to FIGS. 3 to 5. .

As shown in FIG. 29, the light of the LED light source 122 incident on the asymmetric polygonal lens of the lens-attached flexible LED strip lighting 110 according to the embodiment of the present invention may have a radiation angle of 0 degrees to 60 degrees. In addition, the light passing through the asymmetric polygonal lens may have a relatively wide and asymmetrical intensity according to the beam angle and the radiation angle.

30 is a diagram illustrating a lens into which a diffusion sheet of a lens-attached flexible LED strip light is inserted according to an exemplary embodiment of the present invention, and will be described with reference to FIGS. 3 to 5 together.

As shown in FIG. 30, in the lens-attached flexible LED strip lighting 110 according to the embodiment of the present invention, a diffuser 146 is disposed between the LED light source 122 and the lens 124. Uniformity may be improved by effectively scattering light emitted from the LED light source 122.

31 is a view showing a) a lens and b) a reflection cup of a lens-attached flexible LED strip light according to an embodiment of the present invention, and will be described with reference to FIGS. 3 to 5 together.

As shown in FIG. 31, in the lens-attached flexible LED strip lighting 110 according to the embodiment of the present invention, an undercut is formed on the lower outer surface of the lens 124, and the lower part of the reflective cup 144 An undercut is formed on the inner surface.

Accordingly, when the lens 124 is inserted into the place where the support 140 and the reflection cup 144 are fastened, the protrusion of the lens 124 is fixed to the bump of the reflection cup 144, so that the lens 124 is It can be prevented from being easily separated from the reflective cup 144.

The distance between the outer diameter of the lens 124 and the inner diameter of the reflection cup 144 may be 1 mm or less.

FIG. 32 is a view showing a) a lens of a first example, a reflective cup, and a support, b) a lens of a second example, a reflective cup, and a support of a lens-attached flexible LED strip light according to an embodiment of the present invention. It will be described with reference to 3 to 5 together.

As shown in Fig. 32, in the lens-attached flexible LED strip lighting 110 according to the embodiment of the present invention, the lens 124, the reflection cup 144, and the outer surface or the inner surface of the support 140 of the first example There are no holes, protrusions, etc. formed in the second example, whereas protrusions of the protrusions are formed on the lower outer surface of the lens 124 of the second example, and the protrusions of the bump are formed on the lower inner surface of the reflection cup 144 of the second example A hole may be formed in the water 140, and the lens 124, reflection on the printed circuit board 120 by aligning the projection of the lens 124, the projection of the reflection cup 144, and the hole of the support 140 The cup 144 and the support 140 can be aligned.

The lower outer surface of the reflective cup 144 and the upper inner surface of the support 140 may have a square shape to prevent rotation, and the square-shaped corners may have a round shape.

Although not shown, a protrusion (boss) is formed on the lower surface of the support 140, a hole is formed on the upper surface of the printed circuit board 120, and the protrusion of the support 140 is inserted into the hole of the printed circuit board 120 The support 140 and the printed circuit board 120 may be aligned.

33 is a view showing a) circular, b) oval, c) polygonal reflection cup of a lens-attached flexible LED strip light according to an embodiment of the present invention, and will be described with reference to FIGS. 3 to 5.

As shown in FIG. 33, in the lens-attached flexible LED strip lighting 110 according to the embodiment of the present invention, aluminum for increasing the reflectance may be coated on the inner surface of the reflection cup 144, which is an injection-molded product, and A sputtering method of metal coating can be additionally adopted in the evaporation method so that the adhesion is strong while being high.

The reflective cup 144 may have a mechanism structure that considers rotation prevention when fastening, fixing, and aligning with the support 140, and the outer shape of the reflective cup 144 is the adhesive strength after applying the filler 134, which is a subsequent process. You can have a wing structure to enhance the durability and

In this way, when the lens-attached flexible LED strip light 110 is bent or twisted, the adhesive strength between the light source unit including the reflective cup 144 and the filler 134 that surrounds and supports it is improved by the wing structure to improve the reflective cup ( It is possible to prevent the separation between the 144 and the filler 134 or tearing of the filler 134.

Such a lens-attached flexible LED strip light 110 can be applied as a light source for architectural interior lighting, a light source of a liquid crystal display device, a light source for medical equipment and measurement devices, a light source for plant growth, etc. It has possible features and can be used as indirect lighting for architectural interiors by utilizing various auxiliary equipment.

In addition, the lens-attached flexible LED strip light 110 has an air layer on the top of the lens 124 and forms a silicon layer, a film layer, or a sheet layer containing a material that shifts the wavelength, thereby It can be applied to light sources of devices and measuring instruments, bio-friendly, plant growth and image display devices.

In addition, the lens-attached flexible LED strip lighting 110 can be used as a light source for external exposure by applying a silicone material having excellent waterproof and dustproof effects.

Claims

With a tray;

A printed circuit board disposed inside the tray;

An LED light source disposed on the printed circuit board;

A support disposed on the printed circuit board around the LED light source;

A lens disposed above the LED light source;

A reflection cup surrounding the LED light source and the lens;

A filler disposed on the printed circuit board inside the tray excluding a portion surrounded by the support and the reflective cup

Lens-attached flexible LED strip lighting comprising a.
The method of claim 1,

The lens is a lens-attached flexible LED strip light made of silicone.
The method of claim 1,

The lens is a flexible LED strip light attached to a lens having a circular, oval or asymmetric polygonal shape.
The method of claim 1,

Lens-attached flexible LED strip lighting in which a scattering pattern is formed on a rear surface of the lens to which light from the LED light source is incident.
The method of claim 1,

The inner surface of the reflective cup is coated with aluminum or white silicone, and is a lens-attached flexible LED strip lighting.
The method of claim 1,

The support and the reflective cup are integrally formed with a lens attached flexible LED strip lighting.
A loading unit for placing each of the printed circuit board and the support on which the LED light source is mounted in the fixing frame;

An alignment attachment part for aligning the center of the LED light source with the center of the support and attaching the support to the printed circuit board using an adhesive;

An adhesive applicator for applying the adhesive to an upper surface of the printed circuit board;

A control unit that transfers the printed circuit board and the fixing frame on which the support is placed, applies the adhesive to the upper surface of the printed circuit board, and adsorbs the support to transfer and align the fixing frame from the fixing frame to the upper side of the printed circuit board.

LED strip assembly device for lens-attached flexible LED strip lighting comprising a.
The method of claim 7,

Alignment of the LED light source and the support, the application of the adhesive, and the attachment of the printed circuit board and the support are automatically sequentially performed in an LED strip assembly device for a lens-attached flexible LED strip lighting.
The method of claim 7,

The alignment attachment unit, a lens-attached flexible LED strip assembly device for fitting a reflective cup to the support, and inserting a lens on the top of the LED light source inside the reflective cup.
A loading unit for placing an LED strip assembled with an LED light source attached thereto, a support, a lens, and a reflective cup on an upper part of the support plate;

A robot unit for transferring the base plate on which the LED strip is placed;

A coating unit for applying a filler on the printed circuit board;

A lamp unit supplying light for curing the filler material;

A control unit that controls the loading unit, the robot unit, the application unit, and the lamp unit

A filler injection curing device for lighting a lens-attached flexible LED strip comprising a.
The method of claim 10,

A filler injection curing device for lighting a lens-attached flexible LED strip that supplies infrared or ultraviolet rays to the lamp unit.
Attaching a support to the periphery of the LED light source above the printed circuit board disposed inside the tray;

Matching a reflective cup to the support;

Inserting a lens onto the LED light source inside the reflection cup;

Applying a filler to the upper portion of the printed circuit board inside the tray excluding the portion surrounded by the support and the reflective cup

Method of manufacturing a lens-attached flexible LED strip lighting comprising a.
The method of claim 12,

A method of manufacturing a lens-attached flexible LED strip light further comprising the step of curing the filler applied on the printed circuit board using infrared or ultraviolet rays.