WO2021036820A1

WO2021036820A1 - Elongated flexible panel light and manufacturing method therefor

Info

Publication number: WO2021036820A1
Application number: PCT/CN2020/109166
Authority: WO
Inventors: 王定锋; 徐文红; 冉崇友; 徐磊; 琚生涛
Original assignee: 王定锋
Priority date: 2019-09-01
Filing date: 2020-08-14
Publication date: 2021-03-04
Also published as: CN112524504A

Abstract

An elongated flexible panel light and a manufacturing method therefor. The method comprises: continuously extruding a transparent flexible resin by using a plastic extruder to form an elongated light-transmitting plate strip; providing a rolling embossing machine at an outlet of the extruder, or mounting a printer to print light guide ink, or mounting a laser texturing machine behind the extruder; producing light guide points (3.1) to manufacture an elongated flexible light guide plate strip (3); attaching a flexible light bar to which LED lamp beads (2.1) are welded to one side or two sides of the flexible light guide plate strip (3); attaching a reflective film (4) to a surface of the light guide plate strip (3) where reflection is required; then entering a double-material extruder to simultaneously extrude a light-transmitting resin and a light-blocking resin, and wrapping the flexible light guide plate strip (3) to which the LED flexible light bar and the reflective film (4) are attached, wherein a surface of the light-transmitting resin is tightly attached to a surface of the light guide plate strip (3) where no reflective film (4) is provided, so as to form a light-exiting surface; light emitted by an LED enters the light guide plate strip (3) and is uniformly emitted from the wrapping light-transmitting resin layer by means of multiple reflections and refractions under the action of the light guide plate strip (3) and the reflective film (4).

Description

Long strip flexible panel lamp and manufacturing method thereof

Technical field

The invention relates to the field of LED lighting, in particular to a long strip flexible panel light and a manufacturing method thereof.

Background technique

Traditional LED panel lights are divided into direct light-emitting panel lights and side-emitting panel lights. Direct light-emitting is that the LED light bar is installed on the back of the panel light, and the LED light-emitting surface faces the front and directly hits the diffuser plate of the panel light through the diffuser plate. After the light is diffused, the light is transmitted. This direct type must maintain a long distance between the LED and the diffuser to make the diffused light more uniform. Therefore, the panel lights produced are very thick, bulky, and more The individual components and the shell are assembled with many gaps and cannot be waterproof. They can only be used indoors. They are rigid panel lights and cannot be bent at any position during use.

Another type of side-emitting panel light is also made of rigid materials. The light guide plate, diffuser plate and housing are all made of rigid materials. Although the light bar is also on the side facing the light guide plate to achieve a thinner volume, it is because they are all rigid Material assembly makes it impossible to make a very long panel light. At present, it can be made up to 2 meters long, and it is assembled from a variety of structural parts, and it cannot be fully enclosed and fully waterproof. It can only be used indoors, and the materials used are mostly rigid materials. As a result, it is impossible to make a panel light that can be bent intentionally during use, and due to the assembly of multiple structural parts, the assembly efficiency is low and the assembly cost is high. Moreover, it is not a closed waterproof structure and can only be used indoors.

In order to overcome the above shortcomings and many deficiencies, the panel light becomes flexible, ultra-thin, and ultra-long. It can be bent at will during use, and it can be cut at any set position at any time during production. It can be produced automatically and continuously, and it is a fully enclosed waterproof panel light. The present invention fully solves the above problems. A continuous automatic extrusion molding machine is used to continuously extrude the transparent flexible resin into a long light-transmitting strip, and then the guide is manufactured. The light spot is made into a long flexible light guide strip, and LED flexible light strips are attached to the side of the flexible light guide strip. The flexible light strip is equipped with multiple periodic cutting positions, which can be cut at any cutting position for use. A reflective film is attached to one side of the light guide strip, and then it enters into a two-material automatic extruder to extrude a diffused flexible light-transmitting resin and another light-blocking resin at the same time, and wrap the LED flexible light bar. The flexible light guide strip with reflective film, the diffused flexible light-transmitting resin surface is closely attached or glued to the non-reflective film side of the light guide strip to form a light emitting surface. The light emitted by the LED enters the light guide strip and reflects on the light guide plate. Under the action of the film, it emits uniformly from the colored light-transmitting resin surface through various reflections and refractions, making an ultra-long flexible panel light that can be bent at will, and it is a fully waterproof panel light, and it is ultra-thin Panel light, and it is a panel light that can be cut arbitrarily at multiple set cutting positions.

Summary of the invention

The invention relates to a long flexible panel light and a manufacturing method thereof. Specifically, a plastic extruder is used to continuously extrude a transparent flexible resin into a long light-transmitting strip, and a rolling embossing machine is provided at the exit of the extruder , Or install a printer to print light guide ink, or install a laser engraving machine behind the extruder to process the light guide points to make a long flexible light guide strip, on one side or two sides of the flexible light guide strip At the same time, paste the flexible light bar with the LED lamp beads, paste the reflective film on the surface of the light guide strip that needs to reflect, and then enter the two-material extruder to simultaneously extrude a transparent resin and a light-blocking resin , Wrap the flexible light guide strip with LED flexible light bar and reflective film, the light-transmitting resin surface is closely attached to the non-reflective film side of the light guide strip to form a light-emitting surface, and the light emitted by the LED enters the light guide strip. Under the action of the light guide plate and the reflective film, it emits uniformly from the outer light-transmitting resin layer through multiple reflection and refraction.

According to the present invention, there is provided a method for manufacturing a long flexible panel light. Specifically, a plastic extruder is used to continuously extrude a flexible resin with high light transmittance into a long light-transmitting strip, and the extruder exits Equipped with a rolling embossing machine to press the light guide strip into a continuous light guide point, or behind the extruder, a printer is equipped with a printing light guide ink to print the light guide point, or a laser is installed behind the extruder The engraving machine engraves the light guide point to make a long flexible light guide strip. On the side of the flexible light guide strip, paste the flexible light strip that has been welded on the circuit board containing the LED lamp beads, and the LED lamp beads have a tight luminous surface Paste the side of the flexible light guide plate with a reflective film on the surface that needs to be reflective, and then enter the two-material extruder to extrude and wrap a flexible light-transmitting resin with diffusion and a flexible resin that blocks light at the same time LED flexible light bar, reflective film and flexible light guide strip. After extrusion, the two resins are at the junction to form a fully enclosed outsourcing structure with interface fusion. The diffused flexible light-transmitting resin is attached or glued to the light guide strip. It is pasted or glued on the side of the light guide plate with non-reflective film to form a light-emitting surface. After power on, the light emitted by the LED enters the light guide plate and is subjected to multiple reflections and refractions under the action of the light guide plate and the reflective film. , And then enter the flexible light-transmitting resin layer with diffusion, and then send out, that is, a long flexible panel light is made. From the perspective of the panel light, the light starts from the LED lamp bead and then exits from the surface of the panel light. , The direction of light irradiation has completely turned the direction.

According to the present invention, there is also provided a long-strip flexible panel light, including: a bottom layer and a light-blocking flexible resin layer on both sides; a reflective film; an LED flexible light bar; a flexible light guide strip; a flexible light-transmitting resin layer with diffusion on the front; It is characterized in that the function of the light-blocking flexible resin layer on the flexible panel lamp is to block the back and the two sides in the longitudinal direction (long direction), so that light does not leak from these positions, and the light-blocking flexible resin layer and the front belt diffuse The flexible light-transmitting resin layer is completely fused and connected at the junction between the resins. On the flexible panel light, it not only supports and protects the package, but also plays a waterproof role in the long direction (longitudinal). The reflective film Clamped in the light-blocking flexible resin layer, so that the light transmitted to the reflective film, after being fully reflected, causes more light to be transmitted from the front, and then transmitted to the flexible light-transmitting resin layer with diffusion on the front, and then sent out, flexible The light guide strip is on the upper and lower sides, and is sandwiched between the diffused flexible light-transmitting resin layer and the reflective film on the front. There are many light guide points on the surface of the flexible light guide strip. The light guide points are uneven formed by the resin itself. Light guide points, or light guide points made of light guide ink, the LED flexible light bar is on one side or two sides of the flexible light guide strip, and the light-emitting surface of the LED lamp bead on the flexible light bar faces the flexible guide In the light plate belt, the light emitted by the lamp beads after power-on enters the flexible light guide plate belt, and then passes through the light guide plate and the reflective film, and through the common reflection and refraction of each material layer, so that the light can be transmitted to the front side with a diffuse and flexible transmission. The light resin layer passes through the flexible light-transmitting resin layer diffused on the front side, and then is emitted outwards. From the perspective of the overall panel light, the light starts from the LED lamp bead and is emitted from the surface of the panel light. The light irradiation direction is completely changed. Direction, the strip-shaped flexible panel light can be made into an ultra-long flexible panel light, the length is greater than or equal to 0.3 meters, less than or equal to 300 meters, and can be bent at any position when used.

According to a preferred embodiment of the present invention, the elongated flexible panel light is characterized in that the LED flexible light bar is a flexible light bar made of a flexible circuit board, and the flexible circuit board has multiple sides on both sides. The narrowed circuit board, or the circuit board with multiple narrowing on one side, is convenient for the flexible panel light to be bent and used, and the flexible light bar can bend along the bending direction of the panel light and is not easy to break.

According to a preferred embodiment of the present invention, the elongated flexible panel light is characterized in that the LED flexible light bar is a flexible light bar made of a flexible circuit board, and the flexible circuit board has multiple locations in the middle. Cut seams or circuit boards with more hollows, or circuit boards with many hollows or slits and multiple narrowings, so that the flexible light bar can bend along the bending direction of the panel light when the flexible panel light is used. Not easy to break.

According to a preferred embodiment of the present invention, the elongated flexible panel light is characterized in that the LED flexible light bar is a flexible light bar made of a flexible circuit board, and the flexible circuit board is approximately "Great Wall" "Or similar to the "saw-shaped" circuit board, the LED is on the "Great Wall", or on the "sawtooth", the whole circuit board is bent so that the cross section at the bend is approximately "L-shaped", with lamp beads The part is on the side of the light guide strip, and the part of the circuit board without lamp beads is on the other side of the light guide strip. This structure is convenient for the flexible light bar to bend along the bending direction of the panel light when the flexible panel light is used in bending, and it is not easy to be broken.

According to a preferred embodiment of the present invention, the elongated flexible panel light is characterized in that the LED flexible light bar is a flexible light bar made of a flexible circuit board, a circuit board with lamp beads and The lamp beads are on the side of the flexible light guide strip, and the circuit board on the side of the light guide strip is hollowed out. The side of the circuit board without the lamp beads is the main part of the circuit board with the main line, which is bent on the light guide strip. The other side or/and bend on the reflective film, this structure is convenient for the flexible light bar to bend along the bending direction of the panel light when the flexible panel light is used in bending, and it is not easy to be broken.

According to a preferred embodiment of the present invention, the elongated flexible panel light is characterized in that the flexible light bar is a flexible light bar made of a flexible circuit board, and the middle of the flexible circuit board is affixed with lamp beads. There are multiple gaps or hollows formed in the middle of the circuit board. The two sides of the flexible circuit board are main body connectors. The main body connectors on both sides of the circuit board without lamp beads are respectively bent to make the circuit board form a "U"-shaped groove structure. The area with the lamp bead in the middle is on the side of the light guide strip. The "U"-shaped groove structure sandwiches the side of the light guide or the side of the light guide and the reflective film, which is convenient for the flexible light bar to bend along the direction of the panel light when the flexible panel light is used. , Not easy to break.

According to a preferred embodiment of the present invention, the elongated flexible panel light is characterized in that the flexible light bar is a flexible light bar made by welding with a flexible metal wire that contains LED lights. The surface of the wire is insulated by insulating resin. There are many places between the wires and the wires are separated and not connected together. The lamp beads of this flexible light bar are attached to the side of the light guide strip. This structure is convenient for flexible panel lights when they are bent and used. The light bar can be bent along the bending direction of the panel light, and it is not easy to break.

According to a preferred embodiment of the present invention, the elongated flexible panel light is characterized in that the flexible circuit board of the flexible light bar is a straight strip and is a long circuit with approximately the same width at all positions. The width of the circuit board is greater than or equal to 2mm and less than or equal to 12mm.

According to a preferred embodiment of the present invention, the elongated flexible panel light is characterized in that the reflective film is wrapped in the bottom surface, or both the bottom surface and the side surface.

According to a preferred embodiment of the present invention, the elongated flexible panel lamp is characterized in that the lamp beads of the flexible light bar are side-emitting lamp beads, and the lamp beads are soldered on the circuit board. It emits light toward the side of the circuit board, and the light-emitting surface of the lamp bead faces the flexible light guide strip. This structure is convenient for the flexible panel light to bend and use, the flexible light bar can bend along the direction of the panel light, and it is not easy to bend and break.

According to a preferred embodiment of the present invention, the elongated flexible panel light is characterized in that the LED flexible light bar is a flexible light bar made of a flexible circuit board, and the flexible circuit board is a layered board. , A layered board is a layered structure in which a two-layer circuit or a three-layer circuit is a partial layered structure.

According to a preferred embodiment of the present invention, the elongated flexible panel light is characterized in that the LED flexible light bar is located on one side or two sides of the light guide strip, when the flexible light bar On one side, it is a flexible light bar. The light bar is on either side of the light guide strip. The light emitted by the LED lamp beads irradiates into the light guide strip from one side of the light guide strip. When the flexible light strip is on two There are two light bars on the side. The light bars are on the two sides of the light guide strip. The light emitted by the LED lamp beads is irradiated from the side of the light guide strip into the light guide strip, and the LEDs on the two light strips emit The light irradiates into the light guide strip, and shoots each other in pairs.

According to a preferred embodiment of the present invention, the elongated flexible panel light is characterized in that the LED flexible light bar is a circuit board light bar designed periodically, and the flexible light bar is composed of multiple identical The design function of the short periodic light bar is connected into a long light bar, and there are cut positions between each periodic light bar, which can be cut at any cutting position, so that the flexible panel light can also be used at these cutting positions. Cut to use.

According to a preferred embodiment of the present invention, the elongated flexible panel light is characterized in that the all-circumferentially closed outsourcing structure forms a circle around the length of the panel light (longitudinal). The closed waterproof structure.

In the following description of the drawings and specific embodiments, details of one or more embodiments of the present invention will be explained.

Description of the drawings

The features, purposes and advantages of the present invention will become more apparent by reading this specification in conjunction with the following drawings. A brief description of the drawings is as follows.

Fig. 1 is an LED flexible light bar, and the circuit board used is a schematic plan view of a straight flexible circuit board.

Figure 2 is a schematic plan view of the LED flexible light bar, the circuit board used in it, which is narrowed in multiple places on both sides of the flexible circuit board.

Fig. 3 is a schematic plan view of the LED flexible light bar, which uses a circuit board and is narrowed in multiple places on one side of the flexible circuit board.

Figure 4 is a schematic plan view of the LED flexible light bar, which uses a circuit board similar to the "Great Wall shape".

Figure 5 is a schematic plan view of the LED flexible light bar, which uses a circuit board that is approximately "saw-shaped".

Figure 6 is an LED flexible light bar, which uses a circuit board similar to another "saw-blade" plan view.

Figure 7 shows the LED flexible light bar. The circuit board used is folded into an approximate "L shape". The welding lamp bead part is on one side of the "L shape", and the circuit board on this side is provided with hollow holes, and the circuit board is not attached to the light. One side of the bead is a schematic plan view of the main part of the circuit board.

Fig. 8 is a schematic plan view of the LED flexible light bar with multiple slits in the middle of the circuit board.

Fig. 9 is an LED flexible light bar. The circuit board used in it is a schematic plan view with more hollows in the middle.

Fig. 10 is an LED flexible light bar, which uses a circuit board with lamp beads in the middle, a plurality of hollows are formed in the middle of the flexible circuit board, and the two sides of the flexible circuit board are schematic plan views of the main body connecting body.

Fig. 11 is a schematic plan view of the LED flexible light bar, the circuit board used is a straight long circuit board, and the light-emitting lamp beads on the welding side of the circuit board.

Fig. 12 is a schematic plan view of a flexible copper wire lamp with LED lamp beads welded on a copper wire.

Fig. 13 is a schematic plan view of processing light guide points on a long light-transmitting strip.

Fig. 14 is a schematic cross-sectional view of a flexible panel light made by attaching the LED flexible light bar of "Fig. 1, or Fig. 2, or Fig. 3" to the side of the flexible light guide strip.

Fig. 15 is a schematic cross-sectional view of a flexible panel light made by attaching the LED flexible light bar of "Fig. 4, or Fig. 5, or Fig. 6, or Fig. 7" to the side of the flexible light guide strip.

Fig. 16 is a schematic cross-sectional view of a flexible panel light made by attaching the LED flexible light bar of "Fig. 8, or Fig. 9, or Fig. 10" to the side of the flexible light guide strip.

Fig. 17 is a schematic cross-sectional view of a flexible panel light made by attaching the LED flexible light bar of "Fig. 8, or Fig. 9, or Fig. 10" to both sides of the flexible light guide strip.

Figure 18 is a schematic cross-sectional view of a flexible panel light made by attaching the "Figure 11" LED flexible light bar to the side of the flexible light guide strip.

Figure 19 is a schematic cross-sectional view of a flexible panel light made by attaching the "Figure 12" LED flexible light bar to the side of the flexible light guide strip.

Figure 20 shows that when the long strip flexible panel light is energized and used, the light emitted by the LED lamp beads enters the light guide plate and is turned about 90 degrees under the action of the light guide point and the reflective film, and then diffuses from the flexible light transmission. A schematic cross-sectional view of the resin layer emanating outward.

Figure 21 shows that when the long flexible panel light is energized and used, the light emitted by the LED lamp beads enters the light guide plate and is turned about 90 degrees under the action of the light guide point and the reflective film, and then diffuses from the flexible light transmission. A three-dimensional schematic diagram of the resin layer emitting outwards.

detailed description

Hereinafter, the present invention will be described in detail by taking a preferred embodiment as an example.

However, those skilled in the art should understand that the following descriptions are merely examples to illustrate and describe some preferred embodiments, and do not impose any limitation on the claims of the present invention.

The production of flexible circuit boards:

Using traditional circuit board production technology, according to different engineering design materials, the flexible copper clad board is screen printed circuit corrosion-resistant ink, baking curing, etching, film removal, silk screen solder mask, printing characters, baking curing, OSP anti-oxidation surface Processing, forming and other processes are made into the required flexible circuit boards, such as:

Manufactured into a straight flexible circuit board 1.1 (as shown in Figure 1).

Or, it can be made into a flexible circuit board 1.2 narrowed in multiple places on both sides of the circuit board (as shown in Figure 2).

Or, it can be made into a flexible circuit board 1.3 narrowed in multiple places on one side of the circuit board (as shown in Figure 3).

Or, it can be made into a flexible circuit board 1.4 with a circuit board similar to the "Great Wall shape", which is characterized by: the soldering LED pads are set on the "Great Wall Stack" 1.4b, and the whole circuit board is along the bending line 1.4 when used in the subsequent sequence. The cross-section at a is approximately "L-shaped" (as shown in Figure 4).

Or, make the circuit board into a "saw-shaped" flexible circuit board 1.5, which is characterized by: the soldering LED pad is set on the "sawtooth" 1.5b, and in the subsequent use, the whole circuit board is along the bending line 1.5a The cross section is approximately "L-shaped" (as shown in Figure 5).

Or, make a circuit board similar to another "saw-shaped" flexible circuit board 1.6, which is characterized by: the soldering LED pad is set on the "sawtooth" 1.6b, and the circuit board is bent along the whole when used in the subsequent sequence. The line 1.6a is bent into a cross-section that is approximately "L-shaped" (as shown in Figure 6).

Or, the fabricated circuit board 1.7 is bent along the bending line 1.7a into a cross-section that is approximately "L-shaped" during subsequent use, and the soldering LED pad is set on one side of the "L-shaped", and this side The circuit board is provided with a hollow hole 1.7b, and the side of the circuit board without lamp beads is the main part of the circuit board (as shown in Figure 7),

Alternatively, a flexible circuit board 1.8 with multiple slits 1.8a in the middle of the circuit board can be made to facilitate bending along the slits 1.8a during subsequent use (as shown in Fig. 8).

Alternatively, a flexible circuit board 1.9 with more hollow holes 1.9b in the middle of the circuit board can be made to facilitate bending along the hollow holes 1.9b and the bending line 1.9a during subsequent use (as shown in FIG. 9).

Or, it is made into a circuit board 1.10, the soldering LED pad is set in the middle, and a plurality of hollow holes 1.10b are formed in the middle of the circuit board. The two sides of the flexible circuit board are the main body connectors. In the subsequent use, the main body on both sides The connecting body is respectively bent along the bending line 1.10a to make the circuit board form a "U"-shaped groove structure. The area with lamp beads in the middle is on the side of the light guide plate, and the main structure areas on both sides are on the upper and lower surfaces of the edge of the light guide plate. When the flexible panel light is bent in use, the flexible light bar can bend along the bending direction of the panel light (as shown in Figure 10 and Figure 16).

Or, it is made into a straight long circuit board, and the circuit board is a flexible circuit board 1.11 with welding side light-emitting lamp beads (as shown in Fig. 11).

The production of LED flexible light bar:

Using the traditional SMT patch process, the solder paste is printed on the flexible circuit board with a stencil on the solder paste printer, and then the LED lamp beads 2.1 are correspondingly mounted on the solder paste printed pad, and soldered by reflow soldering. , Weld the EED lamp beads 2.1 to the flexible circuit board to make a flexible light bar with LED lights (as shown in Figure 1, Figure 2, Figure 3, Figure 4, Figure 5, Figure 6, Figure 7, Figure 8, Figure 9, Figure 10, Figure 11), or the flexible light bar is the LED lamp 2.1 is welded on the enameled copper wire 1.12 to make the LED copper wire flexible light bar, the wire surface of the light bar is insulated with insulating resin, and the wire There are many places between the lines and the lines are separated and not connected together (as shown in Figure 12).

Production of flexible light guide strip:

The high-light-transmitting PVC resin pellets with a light transmittance of 92% are heated to 180 degrees on the extruder to melt, and then extruded into a light-transmitting strip with a width of 100mm and a thickness of 3mm through an extrusion die made according to the design. After the water tank is water-cooled and dried, the intaglio plate with the designed light guide dots is made on the gravure printing machine, and the light guide ink is printed on the light-transmitting plate belt to produce the light guide point 3.1, which enters the tunnel furnace with Celsius It is dried at a temperature of 80 degrees to produce a rectangular, transparent flexible light guide strip 3 (as shown in Figure 13) with a light guide pattern and light guide points on one side.

Or, the high light transmittance PVC resin pellets with a light transmittance of 92% are heated to 180 degrees on an extruder to melt, and then extruded into a light transmissive plate with a width of 100mm and a thickness of 3mm through an extrusion die made according to the design. The belt, before cooling, enters the double rollers of the embossing machine to press and guide the light pattern on both sides to produce the light guide point 3.1, and then it is water-cooled and shaped in a sink, and dried, and the cross-section is rectangular, transparent, and double-sided. A flexible light guide strip 3 with light guide patterns and light guide points 3.1 (as shown in Figure 13).

Or, the high light transmittance PVC resin pellets with a light transmittance of 92% are heated to 180 degrees on an extruder to melt, and then extruded into a light transmissive plate with a width of 100mm and a thickness of 3mm through an extrusion die made according to the design. The belt is shaped by water cooling in the sink, and dried, and then enters the laser engraving machine to engrave the light guide pattern light guide point 3.1 on one side, and the cross section is rectangular, transparent, and one side has a light guide pattern light guide point. Flexible light guide strip 3 (as shown in Figure 13).

Production of long flexible panel lights:

On the side of the flexible light guide strip 3 with light guide points 3.1, paste the LED flexible light bar as shown in Figure 1, or paste the LED flexible light strip as shown in Figure 2, or paste it on the side as shown in Figure 3. As shown in the LED flexible light bar, the light-emitting surface of the LED lamp beads 2.1 is close to the side of the flexible light guide strip 3, and a reflective film 4 is attached to the surface that needs to be reflected, and then enters the mold of the double-material extruder, and then the transparent Put the light resin 6 into one bin of the dual extruder, and put the light blocking resin 5 into the other bin of the dual extruder. After heating and melting, they are extruded from the mold to wrap the LED flexible lamp. Strips, reflective film 4, and flexible light guide strip 3, the light-transmitting resin 6 is pasted on one side of the non-reflective film 4 of the light guide strip 3 to form a light-emitting surface, and the light-blocking resin 5 wraps the light guide strip 3 with a reflective film One side of 4 and the two sides of the light-emitting surface on the side prevent light from leaking from these positions. The light-blocking resin 5 and the light-transmitting resin 6 are completely integrated at the contact interface, which can support and protect the flexible panel light. It also plays the role of waterproofing the package. After the sink is water-cooled and dried, a long flexible panel light is made (as shown in Figure 14). When the long flexible panel light is energized and used, the LED lamp beads 2.1 emit The light 7 enters the light guide strip 3 under the action of the light guide point 3.1 and the reflective film 4, and becomes the light 8 that has rotated about 90 degrees, and then it is emitted from the flexible light-transmitting resin 6 with diffusion (as shown in Figure 20). , Shown in Figure 21).

Or, the flexible LED strip as shown in Figure 4, or Figure 5, or Figure 6, or Figure 7 is bent into an L shape by 90 degrees along the bending line, and one side of the LED lamp bead 2.1 is attached To the side of the light guide strip 3, the LED lamp bead 2.1 faces into the light guide strip 3, and the side of the main body containing the main wire is attached to the back of the light guide strip 3, and a reflective film 4 is attached to the surface that needs to reflect, and then enter the double material In the die of the extruder, put the light-transmitting resin 6 into one bin of the two-material extruder, and put the light-blocking resin 5 into the other bin of the two-material extruder, and heat and melt them separately. Extrude from the die to wrap the LED flexible light bar, the reflective film 4, and the flexible light guide strip 3, and the light-transmitting resin 6 is pasted on the side of the non-reflective film 4 of the light guide strip 3 to form a light-emitting surface and light-blocking resin 5 Wrap the light guide strip 3 on the side of the light-reflecting film 4 and the two sides of the light-emitting surface on the side to prevent light from leaking from these positions. The light-blocking resin 5 and the light-transmitting resin 6 are completely fused and connected at the contact interface. The flexible panel light not only supports the package and protects it, but also plays the role of waterproofing the package. It is water-cooled and shaped by a sink and dried to make a long flexible panel light (as shown in Figure 15). The long flexible panel light is energized. When working and using, the light 7 emitted by the LED lamp beads 2.1 enters the light guide strip 3 under the action of the light guide point 3.1 and the reflective film 4, and becomes the light 8 rotated about 90 degrees, and then diffuses from the flexible transparent strip. The optical resin 6 is emitted outward (as shown in FIG. 20 and FIG. 21).

Or, bend the flexible LED strip as shown in Figure 8, or Figure 9, or Figure 10 along the slit 1.8a or the bending line 1.9a or 1.10a into a U shape, and the LED lamp bead is in the U shape. Then, on one side of the light guide strip 3, stick the light-emitting surface of the LED lamp bead 2.1 to one side of the light guide strip 3. The lamp bead faces the light guide strip 3, and the main body containing the main line is attached to both sides The front and back of the light guide strip 3, or on the two sides of the light guide strip 3, respectively attach the light-emitting surface of the LED lamp beads 2.1 to the two sides of the light guide strip 3, and the lamp beads face the light guide strip 3 , The two sides of the main body containing the main wires are pasted to the front and back of the light guide strip 3, a reflective film 4 is pasted on the surface that needs to reflect, and then it enters the mold of the double-material extruder, and then the light-transmitting resin 6 is put into the double-material extruder. Put the light-blocking resin 5 into the other material box of the double-material extruder in one material box of the machine, and extrude from the mold after being heated and melted to wrap the LED flexible light bar, the reflective film 4, and the flexible The light guide strip 3 and the light-transmitting resin 6 are pasted on the side of the non-reflective film 4 of the light guide strip 3 to form a light-emitting surface. The light-blocking resin 5 wraps the light-shielding strip 3 on the side with the reflective film 4 and the light from the side The two sides of the surface prevent light from leaking from these positions. The light-blocking resin 5 and the light-transmitting resin 6 are completely fused and connected at the contact interface, which not only supports and protects the flexible panel light, but also plays the waterproof role of the package. The sink is water-cooled and shaped and dried to make a long flexible panel light (as shown in Figure 16 and Figure 17). When the long flexible panel light is energized and used, the light 7 emitted by the LED lamp beads 2.1 enters the light guide plate Under the action of the light guide point 3.1 and the reflective film 4, the belt 3 becomes the light 8 that has rotated about 90 degrees, and then it is emitted from the flexible light-transmitting resin 6 diffused by the belt (as shown in Figure 20 and Figure 21) ).

Or, attach the light-emitting surface of the LED lamp beads 2.1 of the LED copper wire flexible light bar as shown in Figure 12 to the side of the flexible light guide strip 3, paste a reflective film 4 on the surface that needs to reflect, and then enter the double-material extrusion In the mold of the machine, put the light-transmitting resin 6 into one bin of the double-material extruder, and put the light-blocking resin 5 into the other bin of the double-material extruder. Extruding and wrapping the LED flexible light bar, the reflective film 4, and the flexible light guide strip 3, the light-transmitting resin 6 is pasted on the side of the non-reflective film 4 of the light guide strip 3 to form a light-emitting surface, and the light-blocking resin 5 is wrapped The light guide strip 3 has one side of the light-reflecting film 4 and the two sides of the light-emitting surface on the side to prevent light from leaking from these positions. The light-blocking resin 5 and the light-transmitting resin 6 are completely fused and connected at the contact interface. The light not only supports the package and protects it, but also plays the role of waterproofing the package. It is water-cooled and shaped by the sink and dried to make a long strip of flexible panel light (as shown in Figure 18). The strip of flexible panel light is energized and used for working When the light 7 emitted by the LED lamp bead 2.1 enters the light guide strip 3, under the action of the light guide point 3.1 and the reflective film 4, it becomes the light 8 rotated about 90 degrees, and then diffuses from the flexible light-transmitting resin 6 Send out (as shown in Figure 20 and Figure 21).

Or, paste the LED flexible light strip as shown in Figure 11 on the side of the flexible light guide strip 3 of the light guide point, and the light-emitting surface of the LED lamp beads 2.2 is close to the side of the flexible light guide strip 3, on the surface that needs to reflect. Paste a reflective film 4, and then enter the mold of the two-material extruder, then put the light-transmitting resin 6 into a bin of the two-material extruder, and put the light-blocking resin 5 into the other of the two-material extruder. In a material box, they are respectively heated and melted and extruded from the mold to wrap the LED flexible light bar, the reflective film 4, and the flexible light guide strip 3, and the transparent resin 6 is pasted on the non-reflective film 4 of the light guide strip 3 On one side, a light-emitting surface is formed. The light-blocking resin 5 wraps the side of the light guide strip 3 with the light-reflecting film 4, and the two sides of the light-emitting surface of the side, so that light does not leak from these positions. The light-blocking resin 5 and the light-transmitting resin 6 are in The contacting interface is completely integrated and integrated, which not only supports the package and protects the flexible panel light, but also plays the role of waterproofing the package. It is water-cooled and shaped by the sink, and dried to make a long strip of flexible panel light (as shown in Figure 19). Show), when the long strip flexible panel light is energized and used, the light 7 emitted by the LED lamp beads 2.2 enters the light guide strip 3, and under the action of the light guide point 3.1 and the reflective film 4, it turns into a 90-degree direction The light 8 is then emitted from the flexible light-transmitting resin 6 with diffusion (as shown in Fig. 20 and Fig. 21).

The specific embodiment of a strip-shaped flexible panel light has been described in detail above in conjunction with the accompanying drawings. However, those skilled in the art should understand that the above descriptions are merely examples to illustrate and describe some specific embodiments, and do not impose any limitation on the scope of the present invention, especially the scope of the claims.

Claims

A method for manufacturing a long flexible panel light. Specifically, a plastic extruder is used to continuously extrude a flexible resin with high light transmittance into a long light-transmitting strip, and a rolling embossing pattern is installed at the exit of the extruder The light guide strip is pressed out of the continuous light guide point, or behind the extruder, a printer is installed to print the light guide ink to print the light guide point, or a laser engraving machine is installed behind the extruder to engrave The light guide point is made into a long flexible light guide strip. The flexible light guide strip plays the role of guiding and evenly distributing the light. On the side of the flexible light guide strip, paste a circuit board containing LED lamp beads that has been soldered Flexible light bar, the light-emitting surface of the LED lamp bead is closely attached to the side of the flexible light guide plate, and a reflective film is attached to the surface that needs to reflect, and then enters the two-material extruder to combine a diffused flexible light-transmitting resin and a barrier The light flexible resin is extruded at the same time to wrap the LED flexible light bar, reflective film and flexible light guide strip. After extrusion, the two resins form a closed outer structure with interface fusion at the junction, that is, in the long direction (longitudinal) A fully enclosed waterproof structure is formed on the upper surface. The flexible light-transmitting resin with diffusion is affixed or adhered to the light guide plate tape, and is attached or adhered to the side of the light guide plate with non-reflective film to form a light-emitting surface. After power on, The light emitted by the LED enters the light guide plate under the action of the light guide plate and the reflective film, and after various reflections and refractions, it then enters the flexible light-transmitting resin layer with diffusion, and then emits outwards to form a long flexible From the perspective of the panel light as a whole, the light is emitted from the LED lamp bead and is emitted from the surface of the panel light. The direction of light irradiation is completely changed.
A long strip flexible panel light, including:

The bottom layer and the light-blocking flexible resin layer on both sides;

Reflective film

LED flexible light bar;

Flexible light guide strip;

Flexible light-transmitting resin layer with diffusion on the front side;

It is characterized in that the function of the light-blocking flexible resin layer on the flexible panel lamp is to block the back and the two sides in the longitudinal direction (long direction), so that light does not leak from these positions, and the light-blocking flexible resin layer and the front belt diffuse The flexible light-transmitting resin layer is completely fused and connected at the junction between the resins. On the flexible panel light, it not only supports and protects the package, but also plays a waterproof role in the long direction (longitudinal). The reflective film Clamped in the light-blocking flexible resin layer, so that the light transmitted to the reflective film, after being fully reflected, causes more light to be transmitted from the front, and then transmitted to the flexible light-transmitting resin layer with diffusion on the front, and then sent out, flexible The light guide strip is on the upper and lower sides, and is sandwiched between the diffused flexible light-transmitting resin layer and the reflective film on the front. There are many light guide points on the surface of the flexible light guide strip. The light guide points are uneven formed by the resin itself. Light guide points, or light guide points made of light guide ink, the flexible light guide strip plays the role of guiding and evenly distributing the light, and the LED flexible light bar is on one side of the flexible light guide strip or on both sides At the same time, the light-emitting surface of the LED lamp beads on the flexible light bar faces the flexible light guide strip. The light emitted by the lamp beads enters the flexible light guide strip after power-on, and then passes through the light guide plate and the reflective film as well as through the common reflection of each material layer. Refraction function, which can fully transmit the light to the diffused flexible light-transmitting resin layer on the front side, and pass through the diffused flexible light-transmitting resin layer on the front side, and then emit outwards. From the perspective of the integral panel light, the light starts from the LED lamp beads. When the light is emitted from the surface of the panel light, the direction of light irradiation is completely changed. The long flexible panel light can be made into an ultra-long flexible panel light with a length greater than or equal to 0.3 meters and less than or equal to 300 meters. Bent and use in any position.
The elongated flexible panel light according to claim 1 or 2, wherein the LED flexible light bar is a flexible light bar made of a flexible circuit board, and the flexible circuit board is narrowed in multiple places on both sides The circuit board, or the circuit board with multiple narrowing on one side, is convenient for the flexible panel light to be bent and used. The flexible light bar can bend along the bending direction of the panel light and is not easy to break.
The elongated flexible panel light according to claim 1 or 2, characterized in that, the LED flexible light bar is a flexible light bar made of a flexible circuit board, and the flexible circuit board has multiple slits or slits in the middle. There are more hollow circuit boards, or circuit boards with multiple hollows or slits and multiple narrowing points, so that the flexible light bar can bend along the bending direction of the panel light when the flexible panel lamp is bent and used, and it is not easy to break.
The elongated flexible panel light according to claim 1 or 2, wherein the LED flexible light bar is a flexible light bar made of a flexible circuit board, and the flexible circuit board is approximately "Great Wall" or similar For the "saw-shaped" circuit board, the LED is on the "Great Wall" or on the "sawtooth". The circuit board is bent as a whole so that the cross section at the bend is approximately "L-shaped", and the part with lamp beads is guiding On the side of the light strip, the part of the circuit board without lamp beads is on the other side of the light guide strip. This structure is convenient for the flexible light strip to bend along the bending direction of the panel light when the flexible panel light is bent and used, and it is not easy to be broken.
A long strip flexible panel light according to claim 1 or 2, characterized in that, the LED flexible light bar is a flexible light bar made of a flexible circuit board, and the circuit board with the lamp bead part and the lamp bead are in The side of the flexible light guide strip, and the circuit board on the side of the light guide strip is hollowed out. The side of the circuit board without lamp beads is the main part of the circuit board with the main line, which is bent on the other side of the light guide strip or/ And bend on the reflective film, this structure is convenient for the flexible light bar to bend along the bending direction of the panel light when the flexible panel light is used for bending, and it is not easy to be broken.
The elongated flexible panel light according to claim 1 or 2, wherein the flexible light bar is a flexible light bar made of a flexible circuit board, the middle of the flexible circuit board is pasted with lamp beads, and the middle of the flexible circuit board Multiple gaps or hollows are formed. The two sides of the flexible circuit board are main body connectors, and the main body connectors on both sides of the circuit board without lamp beads are respectively bent, so that the circuit board forms a "U"-shaped groove structure with lights in the middle. The bead area is on the side of the light guide strip, and the "U"-shaped groove structure sandwiches the light guide plate or the light guide plate and the reflective film, which is convenient for the flexible light strip to bend along the bending direction of the panel light when the flexible panel light is used, and it is not easy to break .
The elongated flexible panel light according to claim 1 or 2, characterized in that, the flexible light bar is a flexible light bar made by welding flexible metal wires containing LED lights, and the wire surface of the light bar It is insulated with insulating resin. There are many places between the wires and the wires are separated and not connected. The lamp beads of this flexible light bar are attached to the side of the light guide strip. This structure is convenient for the flexible light bar to be used when the flexible panel light is bent. Bending along the bending direction of the panel light, it is not easy to break.
The long flexible panel light according to claim 1 or 2, characterized in that the flexible circuit board of the flexible light bar is a straight strip, and is a long circuit board with approximately the same width at all positions. The board width is greater than or equal to 2mm and less than or equal to 12mm.
The elongated flexible panel light according to claim 1 or 2, wherein the reflective film is wrapped in the bottom surface, or both the bottom surface and the side surface.
The elongated flexible panel light according to claim 1 or 2, wherein the lamp beads of the flexible light bar are side-emitting lamp beads, and the lamp beads are soldered on the circuit board and face the circuit. The side of the board emits light, and the light-emitting surface of the lamp bead faces the flexible light guide strip. This structure is convenient for the flexible panel light to bend and use, the flexible light bar can bend along the direction of the panel light, and is not easy to bend and break.
The elongated flexible panel light according to claim 1 or 2, wherein the LED flexible light bar is a flexible light bar made of a flexible circuit board, and the flexible circuit board is a layered board. The board is a two-layer circuit or a three-layer circuit is a layered structure in which some areas are layered.
The elongated flexible panel light according to claim 1 or 2, characterized in that, the LED flexible light bar is on one side or two sides of the light guide strip, when the flexible light bar is on one side When the side is a flexible light bar, the light bar is on either side of the light guide strip, the light emitted by the LED lamp bead is irradiated from one side of the light guide strip into the light guide strip, when the flexible light strip is on two sides There are two light bars. The light bars are on the two sides of the light guide strip. The light emitted by the LED lamp beads illuminates into the light guide strip from the side of the light guide strip, and the light emitted by the LEDs on the two light strips illuminates Go into the light guide strip and shoot each other in pairs.
A long strip flexible panel light according to claim 1 or 2, characterized in that, the LED flexible light bar is a circuit board light bar designed periodically, and the flexible light bar is composed of a plurality of similarly designed functions. The short periodic light bars are connected into a long light bar, and there are cut positions between each periodic light bar, which can be cut and used at any cutting position, so that the flexible panel light can also be cut and used at these cutting positions.
The elongated flexible panel light according to claim 1 or 2, characterized in that, the all-circumferentially closed outsourcing structure is a surrounding closed type facing the length direction (longitudinal) of the panel light. The waterproof structure.