WO2021212696A1 - 一种led滴胶灯带及其制作方法 - Google Patents

一种led滴胶灯带及其制作方法 Download PDF

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Publication number
WO2021212696A1
WO2021212696A1 PCT/CN2020/107910 CN2020107910W WO2021212696A1 WO 2021212696 A1 WO2021212696 A1 WO 2021212696A1 CN 2020107910 W CN2020107910 W CN 2020107910W WO 2021212696 A1 WO2021212696 A1 WO 2021212696A1
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WIPO (PCT)
Prior art keywords
glue
light strip
light
waterproof
strips
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PCT/CN2020/107910
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English (en)
French (fr)
Inventor
王定锋
徐文红
冉崇友
徐磊
宋健
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Wang Dingfeng
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Publication of WO2021212696A1 publication Critical patent/WO2021212696A1/zh

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21KNON-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
    • F21K9/00Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/90Methods of manufacture
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00Lighting devices or systems using a string or strip of light sources
    • F21S4/20Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
    • F21S4/22Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports flexible or deformable, e.g. into a curved shape
    • F21S4/24Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports flexible or deformable, e.g. into a curved shape of ribbon or tape form, e.g. LED tapes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00Fastening of light sources or lamp holders
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00Fastening of light sources or lamp holders
    • F21V19/001Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00Arrangement of electric circuit elements in or on lighting devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V31/00Gas-tight or water-tight arrangements
    • F21V31/04Provision of filling media
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING 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
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]

Definitions

  • the invention relates to the field of light strips, in particular to an LED epoxy light strip and a manufacturing method thereof.
  • the waterproof LED light strips in the industry usually adopt the following two methods for waterproofing.
  • One is to dispense glue on the front cover film of a single LED light strip circuit board and the soldered components to form a layer of more components.
  • the thick glue layer is much higher.
  • This method uses a large amount of glue, and the lamp strip circuit board must be covered with high-temperature and expensive PI to pass the reflow soldering, resulting in high material costs and low production efficiency for a single operation.
  • Another method is to waterproof a single LED strip with glue or sleeve. This method is also the method that the strip circuit board must be covered with high-temperature and expensive PI to pass reflow soldering, plus The material cost of encapsulation or casing is high, and the production efficiency of a single operation is very low.
  • the present invention adopts SMT welded components in a whole roll of conjoined lamp ribbons containing multiple bare lamp ribbons, and the entire roll of glue is applied, and the glue is controlled to be flush or close to the light-emitting surface of the lamp beads. After the glue is cured, it is cut into a single LED waterproof light strip, which replaces the LED light tape waterproof, the LED light tape waterproof, and the LED light tape sleeve waterproof in the current industry, and the material cost is low. , And multiple light strips are assembled together to produce and produce, which greatly improves the production efficiency.
  • the present invention relates to a method for manufacturing LED epoxy light strips. Specifically, a whole roll of conjoined flexible circuit boards containing multiple light strip circuit boards is used, and SMT components are pasted to form a whole roll containing multiple bare light strips.
  • One piece light strip, the whole roll of multiple pieces of one piece bare light strip has a board edge on each side, and the board edge is coated with a non-stick glue so that the glue after the glue does not flow from the board edge to the outside of the board.
  • the whole roll of glue the whole roll is opened and enters the horizontal adhesive conveyor belt under the glue device to stick the whole roll of light tape. Below the transmission belt is a horizontal platform with a flat adsorption.
  • the glue device is above the light tape, and the glue is glued.
  • the light strip is transported and moved forward, while the glue head continuously drops glue on one side, and it flows naturally into a whole and leveled, evenly distributed on the connected light strip, and enters under the drive of the conveyor belt.
  • Tunnel oven oven after baking dry, out of the tunnel oven oven, cut into individual strips, made into LED waterproof light strips.
  • a method for manufacturing LED epoxy light strips Specifically, a whole roll of conjoined flexible circuit boards containing multiple light strip circuit boards is used, and SMT components are pasted to form the entire roll containing multiple bare lights. Strip one-piece light strip, or use multiple single-piece flexible circuit boards containing multiple light strip circuit boards, SMT paste the components, and then weld the multiple single-pieces end-to-end to form a whole roll containing multiple bare lights.
  • the strip of one-piece light strip, the whole roll of multiple strips of one-piece bare light strip has a side on each side, and the side of the board is coated with a non-sticky glue so that the glue after dripping does not flow from the side of the board to the outside of the board.
  • the whole roll is dripped with waterproof glue, and the whole roll is opened and enters the horizontal adhesive conveyor belt under the glue dispenser to stick the entire roll of light tape.
  • a horizontal platform which is flat and flat, and the glue dispenser is above the light tape.
  • glue heads There are multiple glue heads on the glue dispenser. The number of light strips of the conjoined light strip plus 1 is the number of glue heads. Each glue head is aligned on the slitting line of the conjoined light strip.
  • On the upper side open the conveyor belt to absorb the light belt and move forward on the platform. At the same time, turn on all the glue heads.
  • the automatic controller controls the amount of glue for each glue head.
  • the light belt moves forward, and the glue head While continuously dripping waterproof glue, the light strip after dripping the waterproof glue enters the tunnel oven oven under the drive of the conveyor belt, and after drying, it exits the tunnel oven oven and detaches from the glue on the conveyor belt until the entire roll of conjoined light strips Drip the waterproof glue and bake it.
  • the board after the dripping of the waterproof glue is absorbed on the conveyor belt on the horizontal platform to keep it level.
  • the waterproof glue flows naturally to form a whole body and level, evenly distributed on the connected light strip.
  • the amount of waterproof glue dripping and adding glue is controlled so that the surface where the waterproof glue does not flow to the light-emitting surface of the lamp bead is the upper limit standard, and then the whole board with the waterproof glue cured is transferred to the slitting machine and cut into single strips
  • the light strip is divided into two longitudinal (long direction) sides of a single light strip.
  • the side of the circuit board on each side and the side of the cured glue are respectively on the same cutting surface.
  • an LED epoxy light strip including: a flexible circuit board; LED lamp beads or LED lamp beads and control elements; waterproof glue; characterized in that the flexible circuit board is a single-layer circuit board Or a double-layer circuit board, LED lamp beads or LED lamp beads and control components are soldered on the surface pads of the circuit board, the waterproof glue forms a cured soft waterproof glue, and the waterproof glue is glued to the upper surface of the circuit board.
  • the waterproof glue is glued to the bracket of the LED lamp beads or to the bracket of the LED lamp beads and the control components.
  • the waterproof glue is a colored waterproof glue that blocks the circuit board. When you look at the upper surface of the circuit board, you can no longer see it.
  • the packaging glue of the LED lamp beads is still exposed, so that the waterproof glue does not affect the light emission of the LED.
  • the surface and sides of the control element are fully covered by the waterproof glue, or the side of the control element is glued.
  • waterproof glue but the upper surface of the control element is not glued or not filled with waterproof glue.
  • the two sides of the light strip facing the longitudinal direction (long direction), the side of the flexible circuit board and the side of the waterproof glue on each side are respectively On the same cutting surface, the light strip is at any position avoiding the component.
  • the upper surface and two sides of the waterproof glue are flat, and the angles formed by the upper surface and the two sides are respectively All are greater than 75 degrees and less than 105 degrees, and the thickness of the waterproof glue of the light strip is greater than or equal to 0.05mm and less than or equal to 6.0mm.
  • the LED epoxy light strip is characterized in that the length of the LED waterproof light strip is greater than or equal to 0.5 meters.
  • the LED epoxy light strip is characterized in that the LED waterproof light strip is composed of a plurality of periodic circuits, each of which has the same circuit, and each periodic component
  • a metal connection point is designed at the cutting position.
  • the metal connection point is a connection point used for interconnection between multiple light strips. Or/and is the connection point used to connect to the power supply.
  • the metal connection point is on the front or/and back. When there is a metal connection point on the front, the metal connection point has been covered by waterproof glue. You can peel off or remove the waterproof glue when you need to use it. .
  • the LED epoxy light strip is characterized in that double-sided tape can be pasted on the back of multiple connected light strips, and then divided into single strips and double-sided tape. It plays a role of waterproof and moisture-proof, insulation and sticking and fixing during installation and use. On both sides of the longitudinal (long direction) of a single light strip, the sides of the waterproof glue, circuit board, and double-sided tape are respectively on a cutting surface.
  • the LED epoxy light strip is characterized in that the waterproof glue is a filling glue with light blocking and reflecting effects.
  • the LED epoxy light strip is characterized in that a layer of waterproof resin can be wrapped around the long direction of the light strip to make a higher-level waterproof light strip.
  • the LED epoxy light strip is characterized in that a layer of transparent waterproof glue can be applied on the top of the light strip to increase the waterproof level of the light strip.
  • Figure 1 is a schematic plan view of a flexible circuit board.
  • Fig. 2 is a schematic plan view of a plurality of connected bare light strips formed after the LED lights are soldered on the flexible circuit board.
  • Fig. 3 is a schematic cross-sectional view of a plurality of connected bare light strips formed after LED lamps are soldered on a flexible circuit board.
  • Fig. 4 is a three-dimensional schematic diagram of a plurality of connected bare light strips formed after LED lamps are soldered on a flexible circuit board.
  • Figure 5 is a schematic elevation view of the glue production line.
  • Figure 6 is a schematic side view of the glue production line.
  • Fig. 7 is a three-dimensional schematic diagram of a whole roll of multiple connected bare light strips after glue is applied.
  • Fig. 8 is a schematic cross-sectional view of a whole roll of multiple connected bare light strips after glue is glued.
  • Fig. 9 is a schematic cross-sectional view of a whole roll of multiple connected bare light strips with double-sided tape pasted on the back after the glue is applied.
  • Fig. 10 is a three-dimensional schematic diagram of the LED waterproof light strip cut into single strips.
  • Figure 11 shows that after cutting into a single LED waterproof light strip, on both sides of the light strip facing the longitudinal direction (long direction), the side of the flexible circuit board and the side of the waterproof glue on each side are on the same cutting surface.
  • Fig. 12 is a schematic cross-sectional view of wrapping a layer of waterproof resin around the long direction of the light strip to make a higher-level waterproof light strip.
  • Figure 13 is a schematic diagram of a transverse cross-section of a single LED waterproof light strip.
  • FIG. 14 is a schematic diagram of a transverse cross-section of applying a layer of transparent waterproof glue on the top of the LED waterproof light strip.
  • the flexible copper clad board is screen-printed circuit anti-corrosion ink, baked, cured, etched, film-removed, screen-printed front ink solder mask, exposed component pad 1.1 and metal connection point 1.2, baked and printed characters , Bake curing, OSP anti-oxidation surface treatment and other processes are made into a flexible circuit board 1 (as shown in Fig. 1).
  • the label 1 in Fig. 1 indicates that it is a flexible single-sided circuit board.
  • the double-sided flexible copper-clad board is drilled, copper-immersed, copper-plated, dry-filmed, exposed, etched, film-removed, and screen printed on the front ink solder mask to expose the component pad 1.1 and the metal connection point 1.2, and bake , Then screen printing the back ink solder mask, baking, characters, baking, OSP anti-oxidation surface treatment and other processes to make a flexible circuit board 1 (as shown in Figure 1), in this step, the mark 1 in Figure 1 indicates that it is flexible Double-sided circuit board.
  • the solder paste is printed on the component pad 1.1 of the flexible circuit board 1 with a stencil, and then the LED lamp beads 2.1 and resistor 2.2 are correspondingly mounted on the printed solder paste Solder the LED lamp beads 2.1 and resistor 2.2 to the flexible circuit board 1 by reflow soldering on the soldering pad 1.1 to make multiple connected bare strips with LED lamps (as shown in Figure 2, Figure 3, Shown in Figure 4).
  • Each glue head 5.1 in the middle is respectively aligned on the slitting line of the slitting single strip of the conjoined light strip, and the conveyor belt is turned on to absorb the light strip and move forward on the platform 5.3, and all the glue heads 5.1 are turned on at the same time.
  • the automatic controller respectively controls the dispensing volume of each dispensing head 5.1, the light strip moves forward while transporting, while the dispensing head 5.1 continuously drips glue, the light strip after dispensing is driven by the conveyor belt 5.2 to enter the tunnel Stove oven 5.4, after baking dry, exit the tunnel oven oven 5.4, detach from the glue of the conveyor belt 5.2 (as shown in Figure 5, Figure 6), until the entire roll of conjoined light strips are dripped with glue 3 and baked (such as As shown in Figure 7), in this process, the glued flexible circuit board 1 is adsorbed on the conveyor belt 5.2 on the horizontal platform 5.3 to keep it level, and the natural flow is connected into a whole and leveled and evenly distributed on the connected bare light strip.
  • FIG. 9 is a cross-sectional schematic diagram of a whole roll of bare light strips with glue on the entire roll of glue.
  • a single waterproof LED light strip as shown in FIG. 10 can be wrapped with a layer of waterproof resin 5 around the long direction to make a higher-level LED waterproof light strip (as shown in FIG. 12).
  • the present invention adopts a whole roll of multiple strips of conjoined bare light strips and glues the entire roll, controls the glue and the light-emitting surface of the lamp beads to be level or close to level, and after the glue is cured, it is then cut into a single LED waterproof light strip. It replaces the LED light strip waterproofing in the industry today, the LED light strip is waterproof, and the LED light strip sleeve is waterproof, the material cost is low, and multiple light strips are assembled together to produce and produce, which greatly improves the production. efficient.
  • a layer of transparent waterproof glue 4 is applied on the top of the LED waterproof light strip to cover the upper surface of the light strip to increase the waterproof level of the light strip (as shown in Figure 14).

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

Abstract

本发明涉及一种LED滴胶灯带及其制作方法,具体而言,用整卷含多条灯带线路板的连体柔性线路板,SMT贴上元器件成为整卷含多条裸灯带的连体灯带,整卷多条连体裸灯带的两边都各有一板边,板边涂有不粘胶水的不粘剂使滴胶水后的胶水不从板边流到板外,然后整卷滴胶,整卷打开进入滴胶器下面水平带胶粘性的传输带上粘住整卷灯带,传输带下面是水平的平台,吸附平整,滴胶器在灯带上方,滴胶器上有多个滴胶头,灯带往前一边传输移动,滴胶头一边连续不断滴胶,自然流动连成一体流平,均匀分布在连体灯带上,在传输带的带动下进入隧道炉烤箱,烤干后出隧道炉烤箱,分切成单条,制作成LED防水灯带。

Description

一种LED滴胶灯带及其制作方法 技术领域
本发明涉及灯带领域,具体涉及一种LED滴胶灯带及其制作方法。
背景技术
现如今行业里的防水LED灯带,通常都是采用以下两种方式进行防水的,一是在单条LED灯带线路板的正面覆盖膜及焊接的元器件上面滴胶,形成一层比元器件高出很多的厚胶层,这种方法胶水用量大,而且灯带线路板必须用耐高温的昂贵的PI做覆盖膜才能过回流焊焊接,导致材料成本高,加之单条作业生产效率很低。
另一种方法是将单条LED灯带采用包胶、或者包套管的方式进行防水,此方法同样是灯带线路板必须用耐高温的昂贵的PI做覆盖膜才能过回流焊焊接,加上包胶、或者包套管的材料成本高,并且是单条作业生产效率很低。
为了克服以上的缺陷和不足,本发明采用SMT焊有元器件的整卷含多条裸灯带的连体灯带、进行整卷滴胶,控制胶水与灯珠的发光面平齐或接近平齐,胶水固化后,再分切制作成单条的LED防水灯带,替代现如今行业里的LED灯带滴胶防水,LED灯带包胶防水,和LED灯带包套管防水,材料成本低,并且是多条灯带拼板在一起制作生产,大大提高了生产效率高。
发明内容
本发明涉及一种LED滴胶灯带的制作方法,具体而言,用整卷含多条灯带线路板的连体柔性线路板,SMT贴上元器件成为整卷含多条裸灯带的连体灯带,整卷多条连体裸灯带的两边都各有一板边,板 边涂有不粘胶水的不粘剂使滴胶水后的胶水不从板边流到板外,然后整卷滴胶,整卷打开进入滴胶器下面水平带胶粘性的传输带上粘住整卷灯带,传输带下面是水平的平台,吸附平整,滴胶器在灯带上方,滴胶器上有多个滴胶头,灯带往前一边传输移动,滴胶头一边连续不断滴胶,自然流动连成一体流平,均匀分布在连体灯带上,在传输带的带动下进入隧道炉烤箱,烤干后出隧道炉烤箱,分切成单条,制作成LED防水灯带。
根据本发明提供了一种LED滴胶灯带的制作方法,具体而言,用整卷含多条灯带线路板的连体柔性线路板,SMT贴上元器件成为整卷含多条裸灯带的连体灯带、或者用多个单张含多条灯带线路板的连体柔性线路板,SMT贴上元器件,然后将多个单张首尾焊接连成为整卷含多条裸灯带的连体灯带,整卷多条连体裸灯带的两边都各有一板边,板边涂有不粘胶水的不粘剂使滴胶水后的胶水不从板边流到板外,然后整卷滴防水胶,整卷打开进入滴胶器下面水平带胶粘性的传输带上粘住整卷灯带,传输带下面是水平的平台,吸附平整,滴胶器在灯带上方,滴胶器上有多个滴胶头,连体灯带的灯带数量加1就是滴胶头的数量,每个滴胶头都分别对准在连体灯带的分切单条的分切线上,打开传输带吸附住灯带在平台上朝前移动,同时打开所有滴胶头,自动控制器分别控制每个滴胶头的滴防水胶量,灯带往前一边传输移动,滴胶头一边连续不断滴防水胶,滴防水胶后的灯带在传输带的带动下进入隧道炉烤箱,烤干后出隧道炉烤箱,从传输带的胶上脱离,一直到整卷连体灯带都滴上防水胶并烤干,这个过程中,滴防水胶后的板吸附在水平平台上的传输带上保持水平,防水胶水自然流动连成一体并流平,均匀分布在连体灯带上,然后再进入隧道炉,防水胶滴加胶的量,控制在防水胶不流到灯珠的发光面的表面为上限标准,然后将防水胶已固化的整板转到分条机上分切成单条灯带,分切成的单条灯带的纵向(长方向)两个侧面,每个侧面的线路板的侧面及固化后的胶水的侧面都分别在同一个切刀面上。
根据本发明还提供了一种LED滴胶灯带,包括:柔性线路板;LED灯珠或者LED灯珠及控制元件;防水胶;其特征在于,所述柔性线路板是单层线路的线路板或者双层线路的线路板,,LED灯珠或者LED灯珠及控制元件焊接在线路板的表面焊盘上,防水胶形成固化了的软性防水胶,防水胶粘在线路板的上表面,防水胶粘在了LED灯珠的支架上或者粘在了LED灯珠的支架上及控制元件上,防水胶是有色的防水胶挡住了线路板,目视线路板的上表面时,已看不见线路板的上表面,LED灯珠的封装胶仍露出在外,使防水胶不影响LED的发光,当灯带上有控制元件时,控制元件表面及侧面被防水胶全覆盖,或者控制元件侧面粘有防水胶,但控制元件的上表面未粘防水胶或未粘满防水胶,灯带朝纵向(长方向)的两边侧面,每个侧面的柔性线路板的侧面及防水胶的侧面都分别在同一个切刀面上,灯带在避开元件处的任意位置,灯带在平直状态下,防水胶的上表面和两个侧面都是平面,而且上表面和两个侧面形成的角度分别皆是大于75度,小于105度,灯带的防水胶的厚度大于或等于0.05mm,小于或等于6.0mm。
根据本发明的一优选实施例,所述的一种LED滴胶灯带,其特征在于,LED防水灯带的长度大于或等于0.5米。
根据本发明的一优选实施例,所述的一种LED滴胶灯带,其特征在于,LED防水灯带是由多个周期电路组成,每个周期里有相同的电路,每个周期元器件相同,每个周期间设计有剪切位,在剪切位处可剪断使用,剪切位处设计有金属连接点,金属连接点是用于多条灯带之间互连使用的连接点,或/和是用于连接电源的连接点,金属连接点在正面或/和背面,当正面有金属连接点时,金属连接点已被防水胶覆盖,需要使用时可剥开或去掉防水胶使用。
根据本发明的一优选实施例,所述的一种LED滴胶灯带,其特征在于,可在多条连体灯带背面贴双面胶,然后再分切成单条灯带、双面胶起防水防潮、绝缘以及安装使用时粘贴固定作用,在单条灯带 的纵向(长方向)两边侧面,防水胶、线路板、以及双面胶的侧面都分别在一个切刀面上。
根据本发明的一优选实施例,所述的一种LED滴胶灯带,其特征在于,所述的防水胶是有挡光及反光作用的填补胶。
根据本发明的一优选实施例,所述的一种LED滴胶灯带,其特征在于,可在灯带的长方向的四周再包裹一层防水树脂,制成更高等级的防水灯带。
根据本发明的一优选实施例,所述的一种LED滴胶灯带,其特征在于,可在灯带的上面施加一层透光的防水胶,增加灯带的防水等级。
在以下对附图和具体实施方式的描述中,将阐述本发明的一个或多个实施例的细节。
附图说明
通过结合以下附图阅读本说明书,本发明的特征、目的和优点将变得更加显而易见,对附图的简要说明如下。
图1为柔性线路板的平面示意图。
图2为在柔性线路板上焊上LED灯后,形成多条连体的裸灯带的平面示意图。
图3为在柔性线路板上焊上LED灯后,形成多条连体的裸灯带的截面示意图。
图4为在柔性线路板上焊上LED灯后,形成多条连体的裸灯带的立体示意图。
图5为滴胶生产线的立面示意图。
图6为滴胶生产线的侧面示意图。
图7为多条连体的裸灯带整卷滴胶后的立体示意图。
图8为多条连体的裸灯带整卷滴胶后的截面示意图。
图9为多条连体的裸灯带整卷滴胶后,背面贴有双面胶的截面示意图。
图10为分切成单条的LED防水灯带的立体示意图。
图11为分切成单条LED防水灯带后,在灯带朝纵向(长方向)的两边侧面,每个侧面的柔性线路板的侧面及防水胶的侧面都分别在同一个切刀面上的截面示意图。
图12为在灯带的长方向的四周再包裹一层防水树脂,制成更高等级的防水灯带的截面示意图。
图13为单条LED防水灯带的横向截面示意图。
图14为在LED防水灯带的上面施加一层透光的防水胶的横向截面示意图。
具体实施方式
下面将以优选实施例为例来对本发明进行详细的描述。
但是本领域技术人员应当理解,以下所述仅仅是举例说明和描述一些优选实施方式,对本发明的权利要求并不具有任何限制。
采用传统的线路板制作工艺,将柔性覆铜板经丝印电路抗蚀油墨、烘烤固化、蚀刻、退膜、丝印正面油墨阻焊,露出元件焊盘1.1和金属连接点1.2,烘烤、印字符,烘烤固化、OSP防氧化表面处理等工艺制作成柔性线路板1(如图1所示),在此步骤中、图1中标识1表示是柔性单面线路板。
或者是将双面柔性覆铜板经钻孔、沉铜、镀铜、贴干膜、曝光显景、蚀刻、退膜、丝印正面油墨阻焊,露出元件焊盘1.1和金属连接点1.2,烘烤、再丝印背面油墨阻焊,烘烤、字符,烘烤、OSP防氧化表面处理等工艺制作成柔性线路板1(如图1所示),在此步骤中、图1中标识1表示是柔性双面线路板。
采用传统的SMT贴片工艺,在锡膏印刷机上,用钢网将锡膏印刷在柔性线路板1的元件焊盘1.1上,再将LED灯珠2.1和电阻2.2对应贴装到印了锡膏的焊盘1.1上,过回流焊焊接,将LED灯珠2.1和电阻2.2焊接到柔性线路板1上,制作成焊有LED灯的多条连体的裸灯带(如图2、图3、图4所示)。
将整卷的连体裸灯带展开,进入滴胶器下面水平带胶粘性的传输带5.2上粘住整卷连体裸灯带,传输带下面是水平的平台5.3,吸附平整,滴胶器在灯带上方,滴胶器上有多个滴胶头5.1,两边各有一个滴胶头5.1用于在板边滴低流动性的围坝胶,中间的多个滴胶头5.1滴胶水3,中间的每个滴胶头5.1都分别对准在连体灯带的分切单条的分切线上,打开传输带吸附住灯带在平台5.3上朝前移动,同时打开所有滴胶头5.1,自动控制器分别控制每个滴胶头5.1的滴胶量,灯带往前一边传输移动,滴胶头5.1一边连续不断滴胶,滴胶后的灯带在传输带5.2的带动下进入隧道炉烤箱5.4,烤干后出隧道炉烤箱5.4,从传输带5.2的胶上脱离(如图5、图6所示),一直到整卷连体灯带都滴上胶水3并烤干(如图7所示),这个过程中,滴胶后的柔性线路板1吸附在水平平台5.3上的传输带5.2上保持水平,自然流动连成一体流平,均匀分布在连体裸灯带上,然后再进入隧道炉5.4,胶水滴加胶水的量,控制在胶水3不流到灯珠2.1的发光面的表面为上限标准(如图8、图9所示),图8为多条连体的裸灯带整卷滴胶后的截面示意图,图9为多条连体的裸灯带整卷滴胶后,背面贴有双面胶的截面示意图。
将胶水3已固化的整板转到分条机上分切成单条LED防水灯带(如图10所示),分切成的单条LED防水灯带的纵向(长方向)两个侧面,即侧面1.3a和侧面1.3b,每个侧面上的柔性线路板1的侧面及固化后的胶水3的侧面都分别在同一个切刀面上(如图11、图13 所示)
根据需要,将如图10所示的单条LED防水灯带可在长方向的四周再包裹一层防水树脂5,制作成更高等级的LED防水灯带(如图12所示)。
本发明采用整卷多条连体裸灯带、进行整卷滴胶,控制胶水与灯珠的发光面平齐或接近平齐,胶水固化后,再分切制作成单条的LED防水灯带,替代现如今行业里的LED灯带滴胶防水,LED灯带包胶防水,和LED灯带包套管防水,材料成本低,并且是多条灯带拼板在一起制作生产,大大提高了生产效率高。
附图说明:在LED防水灯带的上面施加一层透光的防水胶4,覆盖住灯带的上表面,增加灯带的防水等级(如图14所示)。
以上结合附图将一种LED滴胶灯带的具体实施例对本发明进行了详细的描述。但是,本领域技术人员应当理解,以上所述仅仅是举例说明和描述一些具体实施方式,对本发明的范围,尤其是权利要求的范围,并不具有任何限制。

Claims (8)

  1. 一种LED滴胶灯带的制作方法,具体而言,用整卷含多条灯带线路板的连体柔性线路板,SMT贴上元器件成为整卷含多条裸灯带的连体灯带、或者用多个单张含多条灯带线路板的连体柔性线路板,SMT贴上元器件,然后将多个单张首尾焊接连成为整卷含多条裸灯带的连体灯带,整卷多条连体裸灯带的两边都各有一板边,板边涂有不粘胶水的不粘剂使滴胶水后的胶水不从板边流到板外,然后整卷滴防水胶,整卷打开进入滴胶器下面水平带胶粘性的传输带上粘住整卷灯带,传输带下面是水平的平台,吸附平整,滴胶器在灯带上方,滴胶器上有多个滴胶头,连体灯带的灯带数量加1就是滴胶头的数量,每个滴胶头都分别对准在连体灯带的分切单条的分切线上,打开传输带吸附住灯带在平台上朝前移动,同时打开所有滴胶头,自动控制器分别控制每个滴胶头的滴防水胶量,灯带往前一边传输移动,滴胶头一边连续不断滴防水胶,滴防水胶后的灯带在传输带的带动下进入隧道炉烤箱,烤干后出隧道炉烤箱,从传输带的胶上脱离,一直到整卷连体灯带都滴上防水胶并烤干,这个过程中,滴防水胶后的板吸附在水平平台上的传输带上保持水平,防水胶水自然流动连成一体并流平,均匀分布在连体灯带上,然后再进入隧道炉,防水胶滴加胶的量,控制在防水胶不流到灯珠的发光面的表面为上限标准,然后将防水胶已固化的整板转到分条机上分切成单条灯带,分切成的单条灯带的纵向(长方向)两个侧面,每个侧面的线路板的侧面及固化后的胶水的侧面都分别在同一个切刀面上。
  2. 一种LED滴胶灯带,包括:
    柔性线路板;
    LED灯珠或者LED灯珠及控制元件;
    防水胶;
    其特征在于,所述柔性线路板是单层线路的线路板或者双层线路 的线路板,,LED灯珠或者LED灯珠及控制元件焊接在线路板的表面焊盘上,防水胶形成固化了的软性防水胶,防水胶粘在线路板的上表面,防水胶粘在了LED灯珠的支架上或者粘在了LED灯珠的支架上及控制元件上,防水胶是有色的防水胶挡住了线路板,目视线路板的上表面时,已看不见线路板的上表面,LED灯珠的封装胶仍露出在外,使防水胶不影响LED的发光,当灯带上有控制元件时,控制元件表面及侧面被防水胶全覆盖,或者控制元件侧面粘有防水胶,但控制元件的上表面未粘防水胶或未粘满防水胶,灯带朝纵向(长方向)的两边侧面,每个侧面的柔性线路板的侧面及防水胶的侧面都分别在同一个切刀面上,灯带在避开元件处的任意位置,灯带在平直状态下,防水胶的上表面和两个侧面都是平面,而且上表面和两个侧面形成的角度分别皆是大于75度,小于105度,灯带的防水胶的厚度大于或等于0.05mm,小于或等于6.0mm。
  3. 根据权利要求1或2所述的一种LED滴胶灯带,其特征在于,LED防水灯带的长度大于或等于0.5米。
  4. 根据权利要求1或2所述的一种LED滴胶灯带,其特征在于,LED防水灯带是由多个周期电路组成,每个周期里有相同的电路,每个周期元器件相同,每个周期间设计有剪切位,在剪切位处可剪断使用,剪切位处设计有金属连接点,金属连接点是用于多条灯带之间互连使用的连接点,或/和是用于连接电源的连接点,金属连接点在正面或/和背面,当正面有金属连接点时,金属连接点已被防水胶覆盖,需要使用时可剥开或去掉防水胶使用。
  5. 根据权利要求1所述的一种LED滴胶灯带,其特征在于,可在多条连体灯带背面贴双面胶,然后再分切成单条灯带、双面胶起防水防潮、绝缘以及安装使用时粘贴固定作用,在单条灯带的纵向(长方向)两边侧面,防水胶、线路板、以及双面胶的侧面都分别在一个切刀面上。
  6. 根据权利要求1或2所述的一种LED滴胶灯带,其特征在于, 所述的防水胶是有挡光及反光作用的填补胶。
  7. 根据权利要求1或2所述的一种LED滴胶灯带,其特征在于,可在灯带的长方向的四周再包裹一层防水树脂,制成更高等级的防水灯带。
  8. 根据权利要求1或2所述的一种LED滴胶灯带,其特征在于,可在灯带的上面施加一层透光的防水胶,增加灯带的防水等级。
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