WO2022001688A1 - 一种可多方向弯曲的led灯带及其灯串结构 - Google Patents

一种可多方向弯曲的led灯带及其灯串结构 Download PDF

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Publication number
WO2022001688A1
WO2022001688A1 PCT/CN2021/100774 CN2021100774W WO2022001688A1 WO 2022001688 A1 WO2022001688 A1 WO 2022001688A1 CN 2021100774 W CN2021100774 W CN 2021100774W WO 2022001688 A1 WO2022001688 A1 WO 2022001688A1
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Prior art keywords
led light
area
core wire
light string
smd
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PCT/CN2021/100774
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English (en)
French (fr)
Inventor
刘昌贵
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深圳市科利尔照明有限责任公司
惠州市科利尔照明有限责任公司
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Priority to GBGB2211731.1A priority Critical patent/GB202211731D0/en
Priority to AU2021302026A priority patent/AU2021302026B2/en
Priority to EP21834630.2A priority patent/EP4177514A4/en
Publication of WO2022001688A1 publication Critical patent/WO2022001688A1/zh
Priority to US17/885,526 priority patent/US11655945B2/en

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    • 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
    • F21S4/22—Lighting 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
    • F21S4/24—Lighting 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
    • 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
    • F21S4/22—Lighting 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
    • 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
    • F21S4/10—Lighting devices or systems using a string or strip of light sources with light sources attached to loose electric cables, e.g. Christmas tree lights
    • 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
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • 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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/005—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips for several lighting devices in an end-to-end arrangement, i.e. light tracks
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/001—Arrangement of electric circuit elements in or on lighting devices the elements being electrical wires or cables
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/001—Arrangement of electric circuit elements in or on lighting devices the elements being electrical wires or cables
    • F21V23/002—Arrangements of cables or conductors inside a lighting device, e.g. means for guiding along parts of the housing or in a pivoting arm
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003—Arrangement 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
    • F21V23/004—Arrangement 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 arranged on a substrate, e.g. a printed circuit board
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
    • 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
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • 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
    • F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
    • F21Y2107/70—Light sources with three-dimensionally disposed light-generating elements on flexible or deformable supports or substrates, e.g. for changing the light source into a desired form
    • 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 display, in particular to an LED light strip LED light string structure that can be bent in multiple directions.
  • Figures 1 to 4 show an existing flexible light strip.
  • the figure shows a core wire 1' made of soft elastic plastic or silica gel.
  • At least two main wires 20' and 21' of the same length as the light strip are preset in the core wire 1'.
  • the main wire is on the same horizontal line and parallel to the surface of the light strip; and in the middle position, a core wire slot 8' of the same length as the core wire is reserved;
  • Figure 2 shows a light string 3', which includes a light source 5', electronic components 6' and connecting wires 7', the light string 3' will be embedded in the core wire slot 8' in Figure 1, and then connect the head and tail of the light string to the main wire 20', 21' in parallel.
  • a light strip is usually composed of several light string units.
  • a layer of soft elastic plastic or silica gel is coated to form a complete light strip 4', as shown in Figure 4.
  • the existing light strip can only be bent in one direction (as shown in Figure 5). And if it is bent in the other direction, one of its main wires 20' will be compressed, and the other wire 21' will be stretched. Although the elastic plastic or silicone can be stretched or compressed, the light strip produces There is not enough force to shorten and elongate the metal wire; therefore, this arrangement of the metal wire prevents the lamp strip from bending in this direction.
  • the technical problem to be solved by the present invention is to provide an LED light strip and its LED light string structure that can be bent in multiple directions, so as to realize the multi-directional bending of the light strip and expand the application range and convenience of use of the product.
  • an aspect of the embodiments of the present invention provides an LED light string structure for use in an LED light strip that can be bent in multiple directions, including: a plurality of LED light strings, each LED light string including at least an LED The light source, the electronic components and the connecting parts connecting the LED light source and the electronic components, the head and tail connecting parts of each LED light string are connected in parallel between the two main wires of the core wire of the LED light strip,
  • the main line is a helical curve structure.
  • At least part of the connecting line is a helical curve structure.
  • the plurality of light strings are arranged on the FPCB board;
  • the FPCB board includes a plurality of device welding areas arranged at intervals, and a connection area between adjacent device welding areas; wherein, the device welding areas are welded with SMD LED light sources or/SMD electronic components, and the connection areas are A connection area connecting part is formed to connect each SMD LED light source and SMD electronic components, and the connecting parts at the head and tail of each LED light string adopt connecting wires.
  • the connecting part of the connecting area is a flexible board connecting structure in a curved shape.
  • the device bonding area is rectangular, and at least part of the connection area connecting components between the adjacent device bonding areas is a zigzag line connection structure.
  • an LED light strip that can be bent in multiple directions, which includes:
  • a core wire which has a core wire slot arranged in the direction of the lamp strip in the middle, and at least two main wires are arranged in the core wires on both sides of the core wire slot;
  • each LED light string at least includes an LED light source, electronic components and connecting parts connecting the LED light source and the electronic components, and the end of each LED light string is connected. components are connected in parallel between the two main conductors;
  • the two main lines are of helical curve structure.
  • the connecting member is a connecting line, and at least part of the connecting line is a helical curve structure.
  • the plurality of light strings are arranged on the FPCB board;
  • the FPCB board includes a plurality of device welding areas arranged at intervals, and a connection area between adjacent device welding areas; wherein, the device welding areas are welded with SMD LED light sources or/SMD electronic components, and the connection areas are A connection area connecting part is formed to connect each SMD LED light source and SMD electronic components, and the connecting parts at the head and tail of each LED light string adopt connecting wires.
  • the device bonding area is rectangular, and the connection area between adjacent device bonding areas is at least a long strip, the width of which is smaller than the width of the device bonding area;
  • the connecting part of the connecting area is a flexible board connecting structure in a curved shape.
  • the device bonding area is rectangular, and at least part of the connection area connecting components between the adjacent device bonding areas is a zigzag line connection structure.
  • the core wire and the insulating wrapping layer are made of soft plastic material or silica gel material;
  • the main wire is made of copper, aluminum, steel or alloys of the above materials.
  • the two main wires in the light string adopt a spiral curve structure, which can improve the bending resistance of the light strip, so that it can be bent in multiple directions;
  • the connecting parts connecting the LED light source and the electronic components are connecting wires
  • some of the connecting wires have a spiral curve structure, which further improves the bending resistance of the light strip, so that it can be bent in multiple directions;
  • the connecting parts in the connection area are arranged in a curved soft board connection structure, or in a folded line connection structure, which can also improve the bending resistance of the light strip in different directions. .
  • FIG. 1 is a schematic diagram of a core wire structure of an existing flexible light strip
  • FIG. 2 is a schematic diagram of a light string structure of an existing flexible light strip
  • Fig. 3 is the principle schematic diagram after the assembly of Fig. 1 and Fig. 2;
  • Fig. 4 is the structural schematic diagram after coating a layer of soft elastic plastic or silica gel on the basis of Fig. 3;
  • Fig. 5 is the schematic diagram that Fig. 4 is bent in one direction
  • FIG. 6 is a schematic structural diagram of a metal wire used in an implementation of the present invention.
  • Fig. 7 is the schematic diagram of the core wire of the first embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of assembling a light string in the core wire of FIG. 7 according to the implementation of the present invention.
  • FIG. 9 is a schematic structural diagram of the electrical connection between a light string and a spiral metal wire according to the present invention.
  • FIG. 10 is a schematic structural diagram of assembling a light string in the core wire of FIG. 7 according to Embodiment 2 of the present invention.
  • FIG. 11 is a schematic structural diagram of the electrical connection between the second light string and the spiral metal wire according to the present invention.
  • FIG. 12 is a top-view structural schematic diagram of three FPCB light strings implemented by the present invention.
  • FIG. 13 is a schematic cross-sectional structure diagram of a three-FPCB light string implemented by the present invention.
  • FIG. 14 is a schematic three-dimensional structure diagram of three FPCB light strings implemented in the present invention.
  • FIG. 15 is a schematic structural diagram of assembling the FPCB light string shown in FIG. 14 in the core wire of FIG. 7 in the third embodiment of the present invention.
  • 16 is a schematic structural diagram of the electrical connection between three FPCB light strings and spiral metal wires according to the present invention.
  • FIG. 17 is a schematic structural diagram of an FPCB light string according to Embodiment 4 of the present invention.
  • FIG. 18 is a schematic structural diagram of assembling the FPCB light string shown in FIG. 17 in the core wire of FIG. 7 according to Embodiment 4 of the present invention.
  • 19 is a schematic structural diagram of the electrical connection between four FPCB light strings and spiral metal wires according to the present invention.
  • FIG. 20 is a schematic diagram of a bending form of the multi-directional bending LED light strip of the present invention.
  • FIG. 21 is a schematic diagram of another bending form of the multi-directional bending LED light strip of the present invention.
  • the multi-directionally bendable LED light strip includes:
  • the core wire 1, in this embodiment, has a substantially concave cross-section, but it can be understood that it is not limited to this in other embodiments; there is a core wire slot 8 in the middle of the core wire, which is arranged in the direction of the lamp strip.
  • the core wires on both sides of the core wire slot 8 are provided with at least two main wires. In this embodiment, two main wires 20 and 21 are shown. It can be understood that in other embodiments, two main wires can also be used. the leading line above;
  • a plurality of LED light strings 3 are arranged in the core wire slot 8 at intervals, which at least include LED light sources 5, electronic components 6 and connecting parts 7 connecting the LED light sources and electronic components.
  • the connection The components are connecting wires, and the head-to-tail connecting members 7 (connecting wires) of each LED light string are connected in parallel between the two main wires 20 and 21; in this embodiment, the structure of the LED light string 3 can refer to FIG. 2 As shown, the connection between it and the main wire can be shown in FIG. 9;
  • the insulating wrapping layer is wrapped outside the core wire 1 , and the wrapping form of the insulating wrapping layer can be seen in FIG. 4 .
  • the two main wires 20 and 21 in the present embodiment are of helical curve structure, specifically, as shown in FIG. 6 . It can be understood that this is only an illustration, and in an actual product, at least one main wire with a helical curve structure can be included to improve the technical problems raised in the present application.
  • the core wire 1 and the insulating wrapping layer 4 can be made of soft plastic material or silicone material.
  • the main conductors 20, 21 can be made of copper, aluminum, steel or alloys of the above materials.
  • FIGS. 20 to 21 are respectively schematic diagrams of bending of the multi-directionally bendable LED light strip according to the present invention. It can be seen from this that the light strip with this structure can be bent in multiple directions, for example, it can be bent according to the bending directions shown in FIGS.
  • the main wires 20 and 21 can also be elongated and shortened like a spring without preventing the bending deformation of the light strip.
  • This embodiment can improve and overcome the problem that the embodiment shown in FIG. 7 can easily reach the tensile limit in a certain bending direction, resulting in product failure.
  • FIGS. 10-11 it is the second embodiment of an LED light strip that can be bent in multiple directions according to the present invention.
  • the difference from the structure shown in FIG. 8 lies in the specific structure of the light string.
  • the connecting member 7 connected between the light source 5 and the electronic component 6 is not a straight wire structure in the first embodiment, but a helical curve structure similar to the structure of the main wires 20 and 21 .
  • the effect of this setting is: by changing the shape of the connecting part 7, when the light strip is bent in different directions, the light string can better adapt to the bending.
  • the LED light strip of this embodiment can be bent according to the bending direction shown in FIGS. 20-21 or more complicated angles without damaging the internal structure of the light strip.
  • FIGS. 12-16 it is the third embodiment of an LED light strip that can be bent in multiple directions according to the present invention.
  • the difference from the structure shown in FIG. 8 lies in the specific structure of the LED light string 3 .
  • the plurality of light strings are arranged on the FPCB board and are FPCB board light strings.
  • the FPCB board includes a plurality of device bonding regions 30 arranged at intervals, and a connection region 31 between adjacent device bonding regions 30; wherein, the device bonding regions 30 are soldered with SMD LED light sources 5 or/SMD electronics
  • the connection area 31 is formed with a connecting member for connecting each SMD LED light source 5 and the SMD electronic component 6 .
  • the device pads 30 are rectangular, and the connection regions 31 between adjacent device pads 30 are at least one long strip (for example, in other examples, there may be two or more), the width of which is smaller than the the width of the device pad 30.
  • the connecting part of the connecting area 31 is a curved flexible board connecting structure.
  • the light string formed in the FPCB board is also connected in parallel with the main conduction of the spiral curve structure.
  • Other structures are the same as those shown in the first embodiment and the structure shown in FIG. 7 , and will not be described in detail here.
  • FIG. 16 further illustrates the connection state of the electrical connection between the FPCB light string and the spiral metal wire.
  • the LED light strip of this embodiment can also be bent according to the bending direction shown in FIGS. 20-21 or more complicated angles without damaging the internal structure of the light strip.
  • FIGS. 17-19 it is the fourth embodiment of an LED light strip that can be bent in multiple directions according to the present invention.
  • connection parts of the connection areas 31 between the adjacent device bonding areas 30 adopt at least one zigzag line connection structure (for example, in other examples, there may be two or more).
  • the effect of this arrangement is to provide the light string with multi-directional bending without damage to the interior, which is another better structural improvement.
  • the light strings formed in the FPCB are also connected in parallel with the metal wires of the spiral curve structure.
  • Other structures are the same as those shown in the first embodiment and the structure shown in FIG. 7 , and will not be described in detail here.
  • FIG. 19 is an exploded schematic diagram of the electrical connection between the FPCB light string and the spiral metal wire.
  • the LED light strip of this embodiment can be bent according to the bending direction shown in FIGS. 20-21 or more complicated angles without damaging the internal structure of the light strip.
  • the present invention can only implement the LED light string structure for the LED light strip that can be bent in multiple directions.
  • the technical problem of bending at a more complicated angle without damaging the internal structure of the light strip can still be solved.
  • the specific implementation of the LED light string structure is the same as the above-mentioned implementation, and will not be repeated here.
  • the two main wires in the light string adopt a spiral curve structure, which can improve the bending resistance of the light strip, so that it can be bent in multiple directions;
  • the connecting parts connecting the LED light source and the electronic components are connecting wires
  • some of the connecting wires have a spiral curve structure, which further improves the bending resistance of the light strip, so that it can be bent in multiple directions;
  • the connecting parts in the connection area are arranged in a curved soft board connection structure, or in a folded line connection structure, which can also improve the bending resistance of the light strip in different directions. .

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Abstract

一种可多方向弯曲的LED灯带及其LED灯串结构，LED灯串结构包括：多个LED灯串(3)，每个LED灯串(3)至少包含LED光源(5)、电子元器件(6)和连接部件(7)，各LED灯串(3)的首尾连接部件(7)并联在LED灯带芯线(1)的两条主导线(20、21)之间，至少一条主导线为螺旋曲线结构。

Description

一种可多方向弯曲的LED灯带及其灯串结构
本申请要求于2020年7月1日提交中国专利局、申请号为202010620708.2、发明名称为“一种可多方向弯曲的LED灯带及其LED灯串结构”的中国专利申请的优先权，上述专利的全部内容通过引用结合在本申请中。
技术领域
本发明涉及显示领域，特别涉及一种可多方向弯曲的LED灯带LED灯串结构。
背景技术
如图1至图4，示出了现有的一种柔性灯带。其中，图为示出了用软性弹性塑料或硅胶制作而成的芯线1’，芯线1’内预置了至少两条与灯带等长的主导线20’、21’，该两主导线处与同一水平线上，并与灯带表面平行；并在中间位置并预留了与芯线等长的芯线槽8’；图2示出了一个灯串3’，其包括有光源5’、电子元器件6’和连接线7’，所述灯串3’会嵌入图1中的芯线槽8’内，然后将灯串的首尾与芯线1’的主导线20’、21’并联。如图3，通常一条灯带由若干个灯串单元组成。在图3基础上，再包复一层软性弹性塑料或硅胶就4’形成了一条完整的灯带，如图4所示。
但是现有的这种灯带，其只能在一个方向上可以弯曲(如图5)。而如果其在另一个方向上进行弯曲时，其一根主导线20’将受到压缩，另一根导线21’将受到拉长，虽然弹性塑料或硅胶可以被拉伸或压缩，但灯带产生不了足以使金属导线缩短和拉长的力；所以，金属导线的这种布置结构阻止了灯带向这个方向的弯曲。
发明内容
本发明所要解决的技术问题在于，提供一种可多方向弯曲的LED灯带 及其LED灯串结构，实现灯带的多方向弯曲，扩大产品的应用范围和使用的便利性。
为了解决上述技术问题，本发明的实施例的一方面提供一种LED灯串结构，用于可多方向弯曲的LED灯带中，包括：多个LED灯串，每个LED灯串至少包含LED光源、电子元器件和连接所述LED光源和电子元器件的连接部件，各LED灯串的首尾连接部件并联在LED灯带芯线的两条主导线之间，
所述主导线为螺旋曲线结构。
其中，至少部分连接线为螺旋曲线结构。
其中，所述多个灯串设置于FPCB板上；
所述FPCB板包括多个间隔设置的器件焊接区，以及在相邻器件焊接区之间的连接区；其中，器件焊接区上焊接有贴片LED光源或/贴片电子元器件，连接区上形成有连接各贴片LED光源以及贴片电子元器件之间的连接区连接部件，各LED灯串的首尾的连接部件采用连接线。
其中，所述连接区连接部件为呈弯曲状的软板连接结构。
其中，所述器件焊接区为矩形，至少部分相邻器件焊接区之间的连接区连接部件为折线形的线连接结构。
相应地，本发明实施例的另一方面，还提供一种可多方向弯曲的LED灯带，其包括：
芯线，其中间具有一沿灯带方向设置的芯线槽，在所述芯线槽两侧的芯线中设置有至少两条主导线；
多个LED灯串，间隔设置于所述芯线槽中，每个LED灯串至少包含LED光源、电子元器件和连接所述LED光源和电子元器件的连接部件，各LED灯串的首尾连接部件并联在所述两条主导线之间；
绝缘包裹层，包裹在所述芯线之外；
所述两条主导线为螺旋曲线结构。
其中，所述连接部件为连接线，至少部分连接线为螺旋曲线结构。
其中，所述多个灯串设置于FPCB板上；
所述FPCB板包括多个间隔设置的器件焊接区，以及在相邻器件焊接区 之间的连接区；其中，器件焊接区上焊接有贴片LED光源或/贴片电子元器件，连接区上形成有连接各贴片LED光源以及贴片电子元器件之间的连接区连接部件，各LED灯串的首尾的连接部件采用连接线。
其中，所述器件焊接区为矩形，相邻器件焊接区之间的连接区至少为一长条形，其宽度小于所述器件焊接区的宽度；
所述连接区连接部件为呈弯曲状的软板连接结构。
其中，所述器件焊接区为矩形，至少部分相邻器件焊接区之间的连接区连接部件为折线形的线连接结构。
其中，所述芯线以及绝缘包裹层采用软质塑胶材料或硅胶材料；
所述主导线采用铜、铝、钢或上述材料的合金制成。
实施本发明实施例，具有如下有益效果：
在本发明实施例中，其中，灯串中的两根主导线采用螺旋曲线结构，可以提高灯带抗弯折的能力，使其可以实现多方向弯曲；
同时，当连接所述LED光源和电子元器件的连接部件为连接接线时，其中部分连接线为螺旋曲线结构，进一步提高灯带的抗弯折的能力，使其可以实现多方向弯曲；
而在采用FPC板的LED灯串中，连接区连接部件设置成呈弯曲状的软板连接结构，或者设置成折线形的线连接结构，同样可以提高灯带在不同方向变形的抗弯折能力。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图。
图1是现有一种柔性灯带的芯线结构示意图；
图2是现有一种柔性灯带的灯串结构示意图；
图3是图1与图2组装后原理示意图；
图4是在图3的基础上包覆一层软性弹性塑料或硅胶后的结构示意图；
图5是图4在一个方向上弯折的示意图；
图6是本发明实施一所使用的金属导线的结构示意图；
图7是本发明实施一的芯线的示意图；
图8是本发明实施一在图7的芯线中装配灯串的结构示意图；
图9是本发明实施一灯串与螺旋金属导线电气连接的结构示意图；
图10是本发明实施二在图7的芯线中装配灯串的结构示意图；
图11是本发明实施二灯串与螺旋金属导线电气连接的结构示意图；
图12是本发明实施三FPCB灯串的俯视结构示意图；
图13是本发明实施三FPCB灯串的截面结构示意图；
图14是本发明实施三FPCB灯串的立体结构示意图；
图15是本发明实施三在图7的芯线中装配图14所示FPCB灯串的结构示意图；
图16是本发明实施三FPCB灯串与螺旋金属导线电气连接的结构示意图；
图17是本发明实施四的FPCB灯串的结构示意图；
图18是本发明实施四在图7的芯线中装配图17所示FPCB灯串的结构示意图；
图19是本发明实施四FPCB灯串与螺旋金属导线电气连接的结构示意图；
图20是本发明可多方向弯曲LED灯带的一种弯折形式的示意图；
图21是本发明可多方向弯曲LED灯带的另一种弯折形式的示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚完整地描述，显然，所描述的实施例仅仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其它实施例，都属于本发明保护的范围。
如图6-9所示，为本发明一种可多方向弯曲的LED灯带的实施例一。
在该实施例中，所述可多方向弯曲的LED灯带包括：
芯线1，在本实施例中，其横截面为大致凹形，可以理解的是，在其他实施例中不限于此；其中间具有一沿灯带方向设置的芯线槽8，在所述芯线槽8两侧的芯线中设置有至少两条主导线，在本实施例中示出了两条主导线20、21，可以理解的是，在其他的实施例中也可以采用两条以上的主导线；
多个LED灯串3，间隔设置在芯线槽8中，其至少包含LED光源5、电子元器件6和连接所述LED光源和电子元器件的连接部件7，在本图中，所述连接部件为连接线，各LED灯串的首尾连接部件7(连接线)并联在所述两条主导线20、21之间；在本实施例中，所述LED灯串3的结构可参照图2所示，其与主导线之间的连接可参照图9所示；
绝缘包裹层，包裹在所述芯线1之外，绝缘包裹层的包覆形式可以参见图4。
本实施例与现有技术的主要区别在于，本实施例中的两条主导线20、21为螺旋曲线结构，具体地，可参照图6所示。可以理解的是，此仅为示意，在实际产品中，至少包含一条采用螺旋曲线结构的主导线即可改善本申请所提出的技术问题。
在本实施例中，芯线1以及绝缘包裹层4可以采用诸如软质塑胶材料或硅胶材料。主导线20、21可以采用铜、铝、钢或上述材料的合金制成。
一并参照图20至图21，分别为本发明可多方向弯曲LED灯带的弯折示意图。从中可以看出，该结构的灯带可实现多方向的弯曲，例如按照图20和图21的弯曲方向弯折，其中两个主导线20，21由于设置了螺旋曲线状的导线结构，满足了灯带在任意方向弯曲时，随着弹性塑胶或硅胶的拉伸和压缩，主导线20、21也能够像弹簧一样进行拉长和缩短，而不会阻止灯带的弯曲变形。该实施方式能够改善和克服图7所示实施方式在某一个弯曲方向上极易达到拉伸极限，导致产品失效的问题。
如图10-11所示，为本发明一种可多方向弯曲的LED灯带的实施例二。
在本实施例中，其与图8示出的结构的区别在于灯串的具体结构。其中，连接在光源5和电子元器件6之间的连接部件7并非为实施一中的直导线的结构，而是设为与主导线20，21结构相似的螺旋曲线结构。如此设置的作 用是：通过改变连接部件7的形状，当灯带在不同方向弯曲时，灯串更能适应这种弯曲。本实施例的LED灯带能够按照图20-21所示的弯折方向或更复杂的角度进行弯折，而不会损坏灯带的内部结构。
如图12-16所示，为本发明一种可多方向弯曲的LED灯带的实施例三。
在本实施例中，其与图8示出的结构的区别在于LED灯串3的具体结构。其中，所述多个灯串设置于FPCB板上，为FPCB板灯串。具体地，FPCB板包括多个间隔设置的器件焊接区30，以及在相邻器件焊接区30之间的连接区31；其中，器件焊接区30上焊接有贴片LED光源5或/贴片电子元器件6，连接区31上形成有连接各贴片LED光源5以及贴片电子元器件6之间的连接部件。在一个例子中，器件焊接区30为矩形，相邻器件焊接区30之间的连接区31至少为一长条形(例如在其他的例子中，可以是两条或以上)，其宽度小于所述器件焊接区30的宽度。
在一个具体的例子中，所述连接区31连接部件为呈弯曲状的软板连接结构。
在本实施例中，FPCB板中形成的灯串同样会与螺旋曲线结构的主导电实现并联。其他结构与前述实施例一，图7中示出的结构相同，在此不进行详述。
通过FPCB使制作灯串变得更加简单，并可以设计复杂的电路；另外，通过将FPCB的一部分设置为软板连接线的结构，能够进一步提高灯带的抗弯折能力。具体实施时，将图14所示的灯串结构放置在图7所示的芯线内并完成与螺旋金属导线的电气连接形成图15所示的装配结构。其中，图16进一步示意了FPCB灯串与螺旋金属导线电气连接的连接状况。本实施例的LED灯带也能够按照图20-21所示的弯折方向或更复杂的角度进行弯折，而不会损坏灯带的内部结构。
如图17-19所示，为本发明一种可多方向弯曲的LED灯带的实施例四。
在本实施例中，其与图15的结构的区别在于灯串的具体结构。具体地，在相邻器件焊接区30之间的连接区31的连接部件采用的是至少一条折线形的线连接结构(例如在其他的例子中，可以是两条或以上)。如此设置的作用是：提供灯串多方向弯曲而内部不被破坏，其为另一种更优的结构改良。
可以理解的是：在本实施例中，FPCB板中形成的灯串同样会与螺旋曲线结构的金属导线实现并联。其他结构与前述实施例一，图7中示出的结构相同，在此不进行详述。
具体实施时，将图19所示的灯串结构放置在图7所示的芯线内并完成与螺旋金属导线的电气连接，图19是FPCB灯串与螺旋金属导线电气连接的分解示意图。
同样地，本实施例的LED灯带能够按照图20-21所示的弯折方向或更复杂的角度进行弯折，而不会损坏灯带的内部结构。
可以理解的是，本发明可以单独仅实施用于可多方向弯曲的LED灯带的LED灯串结构，该LED灯串结构按照上述实施例二-四方式中的LED灯串结构加以实施，其依然能够解决更复杂的角度进行弯折，而不会损坏灯带的内部结构的技术问题，LED灯串结构的具体实施方式与上述实施方式相同，此处不再赘述。
实施本发明实施例，具有如下有益效果：
在本发明实施例中，其中，灯串中的两根主导线采用螺旋曲线结构，可以提高灯带抗弯折的能力，使其可以实现多方向弯曲；
同时，当连接所述LED光源和电子元器件的连接部件为连接接线时，其中部分连接线为螺旋曲线结构，进一步提高灯带的抗弯折的能力，使其可以实现多方向弯曲；
而在采用FPC板的LED灯串中，连接区连接部件设置成呈弯曲状的软板连接结构，或者设置成折线形的线连接结构，同样可以提高灯带在不同方向变形的抗弯折能力。
以上所述仅为本发明的较佳实施例，并非用以限定本实用新型的权利要求范围，因此凡其它未脱离本实用新型所揭示的精神下所完成的等效改变或修饰，均应包含于本实用新型的权利要求范围内。

Claims (11)

  1. 一种LED灯串结构，用于可多方向弯曲的LED灯带中，包括：多个LED灯串，每个LED灯串至少包含LED光源、电子元器件和连接所述LED光源和电子元器件的连接部件，各LED灯串的首尾连接部件并联在LED灯带芯线的两条主导线之间，其中，至少一条所述主导线为螺旋曲线结构。
  2. 如权利要求1所述的LED灯串结构，其中，所述连接部件为连接线，至少部分连接线为螺旋曲线结构。
  3. 如权利要求1所述的LED灯串结构，其中，所述多个灯串设置于FPCB板上；
    所述FPCB板包括多个间隔设置的器件焊接区，以及在相邻器件焊接区之间的连接区；其中，器件焊接区上焊接有贴片LED光源或/贴片电子元器件，连接区上形成有连接各贴片LED光源以及贴片电子元器件之间的连接区连接部件，各LED灯串的首尾的连接部件采用连接线。
  4. 如权利要求3所述的LED灯串结构，其中，所述连接区连接部件为呈弯曲状的软板连接结构。
  5. 如权利要求4所述的LED灯串结构，所述器件焊接区为矩形，至少部分相邻器件焊接区之间的连接区连接部件为折线形的线连接结构。
  6. 一种可多方向弯曲的LED灯带，其包括：
    芯线，其中间具有一沿灯带方向设置的芯线槽，在所述芯线槽两侧的芯线中设置有至少两条主导线；
    多个LED灯串，间隔设置于所述芯线槽中，每个LED灯串至少包含LED光源、电子元器件和连接所述LED光源和电子元器件的连接部件，各LED 灯串的首尾连接部件并联在所述两条主导线之间；
    绝缘包裹层，包裹在所述芯线之外，其中，
    至少一条所述主导线为螺旋曲线结构。
  7. 如权利要求6所述的可多方向弯曲的LED灯带，其中，所述连接部件为连接线，至少部分连接线为螺旋曲线结构。
  8. 如权利要求6所述的可多方向弯曲的LED灯带，其中，所述多个灯串设置于FPCB板上；
    所述FPCB板包括多个间隔设置的器件焊接区，以及在相邻器件焊接区之间的连接区；其中，器件焊接区上焊接有贴片LED光源或/贴片电子元器件，连接区上形成有连接各贴片LED光源以及贴片电子元器件之间的连接区连接部件，各LED灯串的首尾的连接部件采用连接线。
  9. 如权利要求8所述的可多方向弯曲的LED灯带，其中，所述器件焊接区为矩形，相邻器件焊接区之间的连接区至少为一长条形，其宽度小于所述器件焊接区的宽度；
    所述连接区连接部件为呈弯曲状的软板连接结构。
  10. 如权利要求8所述的可多方向弯曲的LED灯带，其中，所述器件焊接区为矩形，至少部分相邻器件焊接区之间的连接区连接部件为折线形的线连接结构。
  11. 如权利要求10所述的可多方向弯曲的LED灯带，其中，所述芯线以及绝缘包裹层采用软质塑胶材料或硅胶材料；
    所述主导线采用铜、铝、钢或上述材料的合金制成。
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US11655945B2 (en) 2023-05-23
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EP4177514A1 (en) 2023-05-10

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