WO2021057312A1 - Bande lumineuse à del permettant une installation de tournage multidirectionnel et son procédé de fabrication - Google Patents

Bande lumineuse à del permettant une installation de tournage multidirectionnel et son procédé de fabrication Download PDF

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Publication number
WO2021057312A1
WO2021057312A1 PCT/CN2020/109000 CN2020109000W WO2021057312A1 WO 2021057312 A1 WO2021057312 A1 WO 2021057312A1 CN 2020109000 W CN2020109000 W CN 2020109000W WO 2021057312 A1 WO2021057312 A1 WO 2021057312A1
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WO
WIPO (PCT)
Prior art keywords
circuit board
layer
light strip
layered
layer circuit
Prior art date
Application number
PCT/CN2020/109000
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English (en)
Chinese (zh)
Inventor
王定锋
徐文红
冉崇友
徐磊
琚生涛
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王定锋
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Application filed by 王定锋 filed Critical 王定锋
Publication of WO2021057312A1 publication Critical patent/WO2021057312A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/90—Methods of manufacture
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00—Lighting devices or systems using a string or strip of light sources
    • F21S4/20—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the invention relates to the field of LED light strips and advertising signs, in particular to an LED light strip that can be installed in multi-directional turns and a manufacturing method.
  • the existing technology makes multi-directional turning light strips, which are mainly used in the advertising sign luminous character industry and the light box industry.
  • the existing technology is used in the multi-directional turning flexible circuit board light strips in this industry. The following solutions are used:
  • the light strip is made with multiple narrowing on both sides of a single-layer circuit board.
  • the purpose of the narrowing is to make it easy to turn on a plane.
  • the industry is called an S-shaped light strip.
  • the biggest problem of this kind of circuit board is due to multiple shrinkage. Narrow, the main line of the long light strip from the beginning to the end is also on the first line, and the main line becomes smaller because of the narrowing.
  • the light strip as a whole cannot be too wide, too wide and difficult to turn, and it is installed when making small prints
  • the space is limited, therefore, some locations on relatively narrow lines have to be narrowed, resulting in a small layout of the main line, resulting in a large voltage drop between the head and tail of the light strip and a decrease in the brightness of the tail end.
  • the industry uses this kind of light strips to make advertising characters, they must add wires to supplement the electricity to reduce the voltage drop, and the installation workload is large! The overall cost is very high.
  • the other is to use double-layer circuit boards to make light strips.
  • the two sides of the double-layer circuit boards are narrowed in many places. The purpose of the narrowing is to make it easy to turn on a plane.
  • the industry is called S-shaped light strips.
  • This kind of circuit board Although the main line is enlarged by making two layers, it brings another problem. When the double-sided light strip turns and bends, the upper and lower copper layers will top each other, which will easily break the line. Therefore, the copper thickness cannot be used. Thicker, thicker, harder, easier to top off when turning.
  • the light strip of the present invention is designed to have a multi-layered structure on the circuit board of the light strip.
  • the upper single-layer circuit board has multiple narrowed or hollowed out structures, and the lower layer is wired corresponding to the upper layer. There are gaps in the narrowed position of the board, or in the low empty position.
  • the above structure is convenient for the multi-directional turning and installation of the LED light strip when in use.
  • the single-layer circuit board on the upper layer and the cable on the lower layer pass through the The adhesive of the middle layer is designed to be intermittently bonded at multiple locations to form multiple layered double-layer circuit boards.
  • the upper single-layer circuit Multiple narrowed structures are provided on the board, or/and multiple hollowed structures are provided in the middle of each of the upper circuit boards, and at the narrowed or/and hollowed out (not limited to the narrowed and hollowed out) It forms a layered structure with the cables of the lower layer.
  • the cables of the lower layer are provided with gaps at the narrow positions corresponding to the upper circuit board, and the components containing LED lamp beads are soldered on the upper layer of the multi-layered double-layer circuit board.
  • an LED light strip that can be installed in multiple directions is formed.
  • the single-layer circuit board on the upper layer and the cable on the lower layer are designed to be intermittently bonded at multiple positions through the adhesive in the middle layer to form multiple layered double-layer circuit boards, and in the layered position ( But not limited to the layered position) is provided with hollows, and in the middle of each single circuit board in the conjoined circuit board, there are multiple hollowed holes, and the components containing LED lamp beads are welded to multiple layered double
  • the upper single-layer circuit board of the multi-layer circuit board forms an LED light strip that can be installed in multiple directions.
  • the circuit board of this light strip is provided with multiple layered and hollow structures, which is convenient for the multi-directional turning and installation of the LED light strip. .
  • the present invention solves the problem that the back cable has been stratified at the turning point, and the positive and negative poles are cut and separated. When turning, they do not squeeze or top each other.
  • the cable can be enlarged to meet the load requirements, and it is equivalent to using when installing The external wires of the worm were brought and integrated together, which did not increase the cost of the copper wires. Instead, the layers were integrated, the installation efficiency was high, the overall cost was greatly reduced, and there was no messy wiring in the advertisement.
  • the invention relates to an LED light strip that can be installed in a multi-directional turn and a manufacturing method. Specifically, a single-layer conjoined flexible circuit board containing multiple light strip circuit boards is produced, and an adhesive is intermittently applied on the back of the circuit board. Use a mold to punch out multiple holes, and then use a film with glue to paste parallel wires to make a flat cable. There are multiple conductors exposed on the flat cable. The circuit board and the flat cable are aligned and pasted together to form a flat cable.
  • the conjoined double-layer circuit board with multiple lights and circuit boards is welded on the conjoined double-layer circuit board with SMT process to solder the components containing the LED lights, and the single-layer circuit board and the flat wire are welded and connected to conduct the manufacturing.
  • the LED light strips can be turned and installed in multiple directions.
  • the circuit boards of this light strip are layered in many places, and there are many single-layer circuit boards on the front. When the LED light belt is used, it is convenient for multi-directional turning and installation at the narrowed or hollowed out layered place.
  • a method for manufacturing LED light strips that can be installed in a multi-directional turn. Specifically, a flat cable is produced.
  • the flat cable is a conjoined flat cable containing multiple strips of light, and a film with glue is used. Paste parallel wires to make a flat cable. There are multiple metal wires exposed on the flat cable. Then cut the flat cable into multiple gaps to make a single-layer circuit board.
  • the circuit board is a conjoined circuit with multiple light strip circuit boards.
  • Double-layer circuit board This double-layer circuit board is a multi-layered circuit board.
  • the front single-layer circuit board is narrowed in many places, or/and There are multiple hollows formed in the middle of the front circuit board, and the narrowing or/and hollowing (not limited to the narrowing and hollowing) of the front circuit board and the back cable form a layered structure, and the back cable is being retracted.
  • the narrow part or/and the hollow part have their own gaps.
  • a LED light strip that can be installed in multiple directions is made.
  • the circuit board of this light strip is layered in multiple places, and the front side is a single layer.
  • the circuit board is narrowed or/and hollowed out in many places, so that when the LED light belt is used, it is convenient for multi-directional turning and installation at the narrowed or/and hollowed out and layered places.
  • an LED light strip that can be installed in a multi-directional turn, including: an element containing LED lamp beads; a single-layer circuit board on the upper layer; an adhesive on the middle layer; a cable on the lower layer; It is that the single-layer circuit board on the upper layer and the cable on the lower layer are intermittently bonded at multiple locations through the adhesive in the middle layer to form multiple layered double-layer circuit boards.
  • each single-layer circuit board there are multiple narrowed structures on the upper single-layer circuit board, or/and multiple hollow structures are provided in the middle of each circuit board on the upper circuit board , And at the narrowing or/and hollowing (not limited to the narrowing and hollowing) and the lower layer of the wiring form a layered structure, the lower layer of wiring is at the corresponding narrowing or/and hollowing position of the upper circuit board There are gaps, and the components containing LED lamp beads have been soldered on the upper single-layer circuit board of the multi-layered double-layer circuit board.
  • the upper and lower layers of the circuit have been welded and connected at the position that needs to be connected to form a Multi-directional turn-installed LED light strips.
  • the circuit board of this light strip is provided with multiple layered structures.
  • the upper single-layer circuit board has multiple narrow or/and hollowed structures.
  • the lower layer is wired in the corresponding upper layer.
  • the narrow or/and hollow position of the circuit board is provided with a gap, and the above structure is convenient for the multi-directional turning and installation of the LED light strip when in use.
  • a method for manufacturing LED light strips that can be installed in a multi-directional turn.
  • a single-layer circuit board is manufactured, and the single-layer circuit board is a conjoined flexible circuit board containing multiple light strip circuit boards.
  • Make another cable and glue the parallel wires with a film with glue to make a conjoined cable with multiple light ribbon cables.
  • Adhesive is intermittently glued to the board to form multiple spaced adhesive layers.
  • the circuit board and the cable are aligned and pasted together to form a conjoined double-layer circuit board with multiple light strip circuit boards.
  • This double-layer circuit board It is a multi-layered circuit board, and then cut at the layered place to make each circuit board into multiple hollows, but it is not limited to the hollowed out at the layered position, and the components containing the LED lights are soldered by SMT process in the conjoined
  • the single-layer circuit board and the flat cable need to be connected through welding and connection to make a connected light strip with multiple light strips.
  • an LED light strip that can be installed in a multi-directional turn, including: an element containing LEDs; a single-layer circuit board on the upper layer; an adhesive on the middle layer; a cable on the lower layer; The single-layer circuit board on the upper layer and the cable on the lower layer are intermittently bonded at multiple positions through the adhesive in the middle layer to form multiple layered double-layer circuit boards, and in the layered position (but not limited to The layered position) is provided with hollows and multiple hollows.
  • the components containing LED lamp beads are soldered on the upper circuit board of the layered double-layer circuit board, and conduction is required between the upper circuit board and the lower cable
  • the position of the lamp has been welded and connected to form an LED light strip that can be installed in multiple directions.
  • the circuit board of this light strip is provided with multiple layered and hollow structures.
  • the LED light strip that can be installed in a multi-directional turn is characterized in that the cable is composed of multiple twisted wires or multiple single strands juxtaposed Aligned to form.
  • the LED light strip that can be installed in a multi-directional turn is characterized in that the single-layer circuit board is a circuit board made of wires or made of copper foil circuit board.
  • the LED light strip that can be installed in a multi-directional turn is characterized in that in the welding position of the LED (but not limited to the position of the LED lamp), the middle layer of the board is arranged directly opposite There is adhesive.
  • Fig. 1 is a schematic plan view of a single-layer circuit board on the upper layer, with a through hole provided at the conductive soldering position, and exposed front circuit pads of the upper circuit board on the side of the through hole.
  • FIG. 2 is a schematic plan view of a plurality of hollow holes formed by punching a die on the upper-layer conjoined single-layer circuit board.
  • Fig. 3 is a schematic plan view of the adhesive printed at multiple locations on the back of the upper single-layer circuit board with multiple hollow holes.
  • Fig. 4 is a schematic plan view of a plurality of juxtaposed flat wires covered on a backside adhesive film.
  • Fig. 5 is a schematic plan view of a cover film with a window covering the front surface of the juxtaposed flat wires, and the juxtaposed flat wires are exposed from the windows to form solder joints to form a lower-layer cable.
  • Fig. 6 is a schematic plan view showing that a plurality of gaps are punched out with a die between two adjacent flat wires of the lower layer cable.
  • Figure 7 shows the upper single-layer circuit board with multiple hollow holes and the lower layer of the wiring board through the adhesive of the middle layer to form intermittent adhesion, intermittent layering, and multiple conjoined double-layer circuit boards.
  • Fig. 8 is a schematic cross-sectional view of an upper single-layer circuit board with a plurality of hollow holes bonded to a lower-layer cable through the adhesive of the middle layer to form an intermittently bonded, intermittently layered double-layer circuit board.
  • Figure 9 shows that the upper single-layer circuit board is glued together with the lower layer cable through the adhesive of the middle layer to form intermittent adhesion, intermittent layering, multiple conjoined double-layer circuit boards, in the conjoined double-sided circuit board
  • Figure 10 is a schematic plan view of a connected light strip containing multiple light strips after SMT welding of LED lamp beads on the multiple conjoined double-layer circuit board expressed in "Figure 7".
  • Figure 11 is a cross-sectional schematic diagram of a connected light strip containing multiple light strips after SMT welding LED lamp beads on the multiple conjoined double-layer circuit board expressed in " Figure 7".
  • Figure 12 is a schematic plan view of a single LED light strip that can be turned and installed in multiple directions after being cut into single strips of the conjoined light strips expressed in "Figure 10".
  • Fig. 13 is a schematic plan view of a conjoined light strip containing multiple light strips after SMT welding LED lamp beads on the multiple conjoined double-layer circuit board of "Figure 9".
  • Fig. 14 is a schematic plan view of a single LED light strip that can be installed in a multi-directional turn after being cut into a single piece of the conjoined light strip of multiple light strips expressed in "Figure 13".
  • the single-sided flexible copper clad board is screen-printed with circuit corrosion-resistant ink, baked, cured, etched, and film-removed to make the front circuit, drill positioning holes, and then test and align the cover film with the window. Press on the circuit, expose the pad 1.1 from the window, print the characters, bake and cure, and then punch out the via hole 1.2 with a mold. The hole edge of the via hole 1.2 has the front circuit pad 1.3 exposed, and it is made as The upper single-layer circuit board 1 shown in FIG. 1.
  • the flat copper wire 3.1 is laminated and pasted with the PI film 1 with glue. (As shown in Figure 4), at the same time, the other side of the flat copper wire 3.1 is laminated and pasted with the cover film with the pad window.
  • the flat copper wire 3.1 is exposed from the pad window to form a metal solder joint 3.1a, and the flat copper
  • the line 3.1 is sandwiched in the middle to make a flat line (as shown in Figure 5), and then the flat line is placed on a punching machine with a die, and multiple slits 3.2 are punched out according to the pre-designed position (as shown in Figure 6).
  • This double-layer circuit board is a multi-layered circuit board (as shown in Figure 8) , At the edge of each single-layer circuit board in the double-layer circuit board, the single-layer circuit board on the front is narrowed in many places (as shown in Figure 12), and at the narrowing place (not limited to the narrowing place) and the back
  • the flat cable forms a layered structure, and the rear flat cable has a gap in the narrowed area.
  • a single LED strip made of this circuit board can be easily used at the narrowed layered area when the back is pasted on a flat surface. Turning installation.
  • the single-sided flexible copper clad laminate is screen printed with circuit anti-corrosion ink, baked, cured, etched, and filmed to make the front circuit, drilled with positioning holes, and then tested, and the cover film with a window is opened Align and press on the circuit, expose the pad 1.1 from the window, print characters, bake and cure, and then punch out the via hole 1.2 with a mold.
  • the hole edge of the via hole 1.2 exposes the front circuit pad 1.3, making The upper single-layer circuit board 1 as shown in FIG. 1 is formed.
  • the flat copper wire 3.1 is laminated and pasted with the PI film 1 with glue. (As shown in Figure 4), at the same time, the other side of the flat copper wire 3.1 is laminated and pasted with the cover film with the pad window.
  • the flat copper wire 3.1 is exposed from the pad window to form a metal solder joint 3.1a, and the flat copper
  • the line 3.1 is sandwiched in the middle and made into a flat line (as shown in Figure 5).
  • This double-layer circuit board is a multi-layered circuit board (as shown in Figure 8). In the double-layer circuit board In the middle of each strip, there are multiple hollow holes 1.5 (as shown in Figure 14). A single LED light strip made of this circuit board, when the back is pasted on a flat surface, is convenient for turning and installation at the hollow layered place.
  • the multiple conjoined double-layer circuit boards as shown in Figure 7 adopt the traditional SMT patch process.
  • the solder paste is printed on the LED lamp bead pad 1.1 with a steel mesh, and the metal Solder joint 3.1a and circuit pad 1.3 are printed with solder paste, and then the LED lamp beads 4 are respectively mounted on the LED lamp bead pad 1.1 printed with solder paste using an SMT placement machine, and soldered by a reflow soldering machine.
  • the LED lamp bead 4 is soldered to the circuit board, and at the same time, the single-layer circuit board and the flat wire are welded and connected to make a connected light strip with multiple light strips (as shown in Figure 10 and Figure 11), and then divide the The strip machine is divided into single strips to make LED light strips that can be installed in multiple directions (as shown in Figure 12).
  • the circuit boards of this light strip are layered in many places, and the single-layer circuit boards on the front are narrowed or hollowed out in many places. When the LED light belt is used, it is convenient for multi-directional turning installation at the narrow or hollow layered place.
  • the multiple conjoined double-layer circuit boards as shown in Figure 9 are printed on the LED lamp bead pad 1.1 with a stencil on the solder paste printing machine using the traditional SMT patch process, and at the same time Print the solder paste on the metal solder joint 3.1a and the circuit pad 1.3, and then use the SMT placement machine to respectively mount the LED lamp beads 4 to the LED lamp bead pad 1.1 printed with the solder paste, and solder through the reflow soldering machine , Weld the LED lamp beads 4 to the circuit board, and at the same time connect the single-layer circuit board and the flat wire welding connection to make a connected light strip with multiple light strips (as shown in Figure 13, Figure 11), and then Use a slitting machine to cut into single strips to make LED light strips that can be installed in multiple directions (as shown in Figure 14).
  • the circuit board of this light strip is layered and hollowed out in many ways, which is convenient for the use of LED light strips. Layers and hollows are convenient for multi-directional turning installation.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Led Device Packages (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Abstract

L'invention concerne une bande lumineuse à DEL permettant une installation de tournage multidirectionnel et son procédé de fabrication, et plus particulièrement : la fabrication d'une carte de circuit imprimé jointe souple à une seule couche (1) contenant de multiples cartes de circuit imprimé de bande lumineuse, l'application d'un adhésif (2) par intermittence sur la surface arrière de la carte de circuit imprimé (1) et, dans de multiples positions, à l'aide d'une matrice pour poinçonner de multiples trous (1.2) ; l'utilisation d'un film avec un adhésif pour faire adhérer des fils parallèles (3.1) pour fabriquer un câble plat (3), le fil métallique étant exposé à de multiples endroits sur le câble plat (3) ; l'alignement et la fixation de la carte de circuit imprimé (1) et du câble plat (3) ensemble pour former une carte de circuit imprimé à double couche jointe contenant de multiples cartes de circuit imprimé à bandes lumineuses ; l'utilisation d'un procédé SMT pour fixer et souder des éléments (4) contenant une lumière de DEL sur la carte de circuit imprimé à double couche jointe, et simultanément le soudage et la connexion conductrice de la carte de circuit imprimé à une seule couche (1) et du câble plat (3) pour fabriquer une bande lumineuse conjointe contenant de multiples bandes lumineuses ; et, après le refendage avec une machine à refendre, la fabrication d'une bande lumineuse à DEL permettant une installation de tournage multidirectionnel ; la carte de circuit imprimé de la bande lumineuse est stratifiée à de nombreux endroits, et la carte de circuit imprimé monocouche (1) à l'avant est rétrécie ou creusée à de nombreux endroits, ce qui facilite l'installation du tournage multidirectionnel aux endroits en couches rétrécies ou évidées lorsque la bande lumineuse à LED est utilisée.
PCT/CN2020/109000 2019-09-27 2020-08-13 Bande lumineuse à del permettant une installation de tournage multidirectionnel et son procédé de fabrication WO2021057312A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910961578.6A CN112576951A (zh) 2019-09-27 2019-09-27 一种可多向转弯安装的led灯带及制作方法
CN201910961578.6 2019-09-27

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WO2021057312A1 true WO2021057312A1 (fr) 2021-04-01

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201797655U (zh) * 2010-08-24 2011-04-13 张�林 用并置扁平导线制作的双面线路板
CN201928520U (zh) * 2010-08-24 2011-08-10 张�林 用绝缘层和阻焊层粘附的并置扁平导线制作的双面线路板
US20120228645A1 (en) * 2011-03-11 2012-09-13 Ming-Te Tu Led lamp strip and manufacturing process thereof
CN106413249A (zh) * 2016-08-09 2017-02-15 王定锋 一种含多功能铝箔制成的led灯带线路板模组及制造方法
CN206291099U (zh) * 2016-12-29 2017-06-30 东莞市蓝盾机电设备科技有限公司 一种uv快门灯罩
CN107990177A (zh) * 2017-12-16 2018-05-04 中山市富大照明科技有限公司 一种柔性led灯带
CN211059848U (zh) * 2019-09-27 2020-07-21 王定锋 一种组装式的led长灯带

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201797655U (zh) * 2010-08-24 2011-04-13 张�林 用并置扁平导线制作的双面线路板
CN201928520U (zh) * 2010-08-24 2011-08-10 张�林 用绝缘层和阻焊层粘附的并置扁平导线制作的双面线路板
US20120228645A1 (en) * 2011-03-11 2012-09-13 Ming-Te Tu Led lamp strip and manufacturing process thereof
CN106413249A (zh) * 2016-08-09 2017-02-15 王定锋 一种含多功能铝箔制成的led灯带线路板模组及制造方法
CN206291099U (zh) * 2016-12-29 2017-06-30 东莞市蓝盾机电设备科技有限公司 一种uv快门灯罩
CN107990177A (zh) * 2017-12-16 2018-05-04 中山市富大照明科技有限公司 一种柔性led灯带
CN211059848U (zh) * 2019-09-27 2020-07-21 王定锋 一种组装式的led长灯带

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