WO2024016562A1 - Led 布灯 - Google Patents

Led 布灯 Download PDF

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Publication number
WO2024016562A1
WO2024016562A1 PCT/CN2022/136624 CN2022136624W WO2024016562A1 WO 2024016562 A1 WO2024016562 A1 WO 2024016562A1 CN 2022136624 W CN2022136624 W CN 2022136624W WO 2024016562 A1 WO2024016562 A1 WO 2024016562A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
led lighting
flexible
adhesive layer
thermally conductive
Prior art date
Application number
PCT/CN2022/136624
Other languages
English (en)
French (fr)
Inventor
曾伟均
Original Assignee
深圳市神牛摄影器材有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202221850694.4U external-priority patent/CN217689730U/zh
Priority claimed from CN202221852519.9U external-priority patent/CN217635458U/zh
Application filed by 深圳市神牛摄影器材有限公司 filed Critical 深圳市神牛摄影器材有限公司
Publication of WO2024016562A1 publication Critical patent/WO2024016562A1/zh

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Classifications

    • 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
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/71—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink 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
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present application relates to the technical field of light-emitting devices, and in particular to an LED lighting fixture.
  • This application provides an LED lighting fixture that can improve the heat dissipation efficiency of the light-emitting unit without reducing the lighting effect.
  • An embodiment of the present application provides an LED lighting fixture, including: a sealing film, a first thermally conductive adhesive layer, a plurality of flexible light bars, a flexible connecting plate, and a light-transmitting film; a first thermally conductive adhesive layer that is attached to the sealing film One side of A plurality of light-emitting units are encapsulated on one side of a thermally conductive adhesive layer, and the plurality of light-emitting units are arranged at intervals along the length direction of the flexible light bar; a flexible connection board is provided at one end of the plurality of flexible light bars, A plurality of the flexible light bars are electrically connected to an external power source through the flexible connection board; a light-transmitting film is disposed on a side of the plurality of flexible light bars away from the first thermally conductive adhesive layer.
  • the LED lighting fixture further includes a second thermally conductive adhesive layer, and the second thermally conductive adhesive layer is attached to a side of the flexible light strip on which the light-emitting unit is disposed.
  • a plurality of heat dissipation grooves are provided on the second thermally conductive adhesive layer, the heat dissipation grooves extend along the length direction of the flexible light bar, and one of the heat dissipation grooves correspondingly accommodates the flexible light bar. of the light-emitting unit.
  • the area of the first thermally conductive adhesive layer and the area of the second thermally conductive adhesive layer are both larger than the areas of the plurality of flexible light bars.
  • the thickness of the first thermally conductive adhesive layer and/or the second thermally conductive adhesive layer is 0.4cm-0.8cm.
  • the LED lighting fixture further includes a plurality of lenses, the lenses are located on the side of the flexible circuit board where the light-emitting unit is disposed, and each of the light-emitting units is provided with a corresponding cover. One of said lenses.
  • the LED lighting fixture further includes a second thermally conductive adhesive layer.
  • the second thermally conductive adhesive layer has a plurality of light-emitting holes corresponding to the light-emitting unit, and the lens is correspondingly accommodated in the light-emitting hole.
  • One side of the second thermally conductive adhesive layer is attached to the flexible circuit board.
  • the light-transmitting film is attached to a side of the lens facing away from the flexible light strip.
  • the peripheral side wall of the lens abuts the inner peripheral wall of the light-emitting hole on the second heat dissipation glue layer.
  • it also includes an edge that extends along the outer periphery of the light-transmitting film; the edge covers and limits the sealing film, the first thermally conductive adhesive layer, and the second thermally conductive adhesive layer. Thermal conductive adhesive layer and the edge of the light-transmitting film.
  • the plurality of flexible light strips include RGB light strips and yellow-white light strips.
  • a frosted layer is provided on one side of the light-transmitting film.
  • a buffer layer is provided on a side of the flexible connection board facing away from the light-emitting unit, and the buffer layer extends along the spacing direction of the plurality of flexible light bars.
  • the flexible connection board is attached to a side of the flexible light bar facing away from the light-emitting unit; a first soldering pad is provided on a side of the flexible connection board facing away from the flexible light bar.
  • a second soldering pad is provided on a side of the flexible light bar away from the light-emitting unit relative to the first soldering pad; the first soldering pad is welded to the second soldering pad, and its soldering point is located on the The flexible connection board faces one end of the flexible light bar.
  • an adhesive member is further included, and the adhesive member is disposed on a side of the sealing film and/or the light-transmitting film facing away from the flexible light strip.
  • the adhesive part extends along the peripheral side of the sealing film or the light-transmitting film.
  • the adhesive member is Velcro.
  • the LED cloth light includes a waterproof connector
  • the waterproof connector is electrically connected to the flexible connection board
  • the waterproof connector can be electrically connected to the external power supply.
  • a plurality of fastening buckles are further included, and the plurality of fastening buckles penetrate the sealing film, the first thermally conductive adhesive layer and the light-transmitting film.
  • the sealing film, the first thermally conductive adhesive layer and the light-transmitting film are attached and connected to form a laminated structure.
  • multiple light-emitting units are packaged on the flexible light bar along the length direction of the flexible light bar, and the first thermally conductive adhesive layer is attached to a side of the multiple flexible light bars away from the light-emitting units.
  • the first thermally conductive adhesive layer absorbs the heat of multiple flexible light bars and multiple light-emitting units and conducts heat exchange with the outside world, thereby improving the heat dissipation efficiency of the LED lighting and extending the service life of the LED lighting. , the user experience is good.
  • Figure 1 is a schematic three-dimensional structural diagram of an embodiment of an LED lighting fixture according to the present invention.
  • Figure 2 is an exploded structural diagram of an embodiment of the LED lighting fixture of the present invention.
  • Figure 3 is a top structural schematic diagram of the structure shown in Figure 2.
  • Fig. 4 is a cross-sectional view of the structure shown in Fig. 3 at line A-A.
  • FIG. 5 is an enlarged view of position B in the structure shown in FIG. 4 .
  • FIG. 6 is an enlarged view of position C in the structure shown in FIG. 4 .
  • FIG. 7 is a top view of a flexible light bar and a flexible connection board according to an embodiment of the LED lighting fixture of the present invention.
  • FIG. 8 is a side view of the structure shown in FIG. 7 .
  • FIG. 9 is an enlarged view of position D in the structure shown in FIG. 8 .
  • Figure 10 is a schematic structural diagram of the flexible connecting plate of the LED lighting fixture in a bent state according to the present invention.
  • Figure 11 is a schematic three-dimensional structural diagram of another embodiment of the LED lighting fixture of the present invention.
  • FIG. 12 is an exploded schematic view of the structure shown in FIG. 11 .
  • Fig. 13 is a top view of the structure shown in Fig. 11.
  • FIG. 14 is a cross-sectional view taken along line E-E in FIG. 13 .
  • FIG. 15 is an enlarged structural view of F in FIG. 14 .
  • the direction in which the LED lights emit light is the upper part of the lower part, and the direction away from the upper part is the lower part of the lower part.
  • the present application provides an LED lighting fixture, which includes a sealing film 100 , a first thermally conductive adhesive layer 200 , a flexible light bar 310 , a second thermally conductive adhesive layer 400 and a light-transmitting film 500 that are stacked in sequence.
  • the sealing film 100 is used to prevent external liquid or gas from entering the LED lighting.
  • the first thermally conductive adhesive layer 200 is attached to one side of the sealing film 100 .
  • One side of the flexible light bar 310 emits light to illuminate the outside world, and the side of the flexible light bar 310 facing away from the light-emitting side is attached to the first thermally conductive adhesive layer 200 .
  • the second thermally conductive adhesive layer 400 is located on the side of the flexible light bar 310 that emits light to dissipate heat for the flexible light bar 310 .
  • the light-transmitting film 500 is used to transmit the light emitted by the flexible light bar 310 and seal the entire lamp distribution with the sealing film 100 .
  • the first thermally conductive adhesive layer 200 and the second thermally conductive adhesive layer 400 can reduce the heat generated when the flexible light strip 310 emits light, improve the heat dissipation effect of the LED lighting, and extend the service life of the LED lighting.
  • the sealing film 100 is located at the lower part of the LED lighting fixture, and its upper surface is attached to the first thermally conductive adhesive layer 200 .
  • the first thermally conductive adhesive layer 200 facilitates heat exchange between the flexible light bar 310 and the outside world through the sealing film 100 .
  • the sealing film 100 and the first thermally conductive adhesive layer 200 are bonded and connected to form a laminated structure, which makes the LED lighting fixture have high structural strength, good toughness, easy bending, and can be applied to a variety of usage scenarios.
  • the sealing film 100 has a waterproof function, and together with the light-transmitting film 500, seals the LED lighting.
  • the LED lighting When the LED lighting is used in water or a humid environment, it prevents external liquid or gas from entering the interior of the LED lighting to prevent corrosion or short circuit of the internal components of the LED lighting, making the LED lighting applicable to a variety of usage scenarios and increasing the number of LED lighting fixtures. The reliability of lighting.
  • the lower surface of the first thermally conductive adhesive layer 200 is closely connected to the upper surface of the sealing film 100, and the upper surface of the first thermally conductive adhesive layer 200 is connected to a plurality of flexible lamps.
  • the lower surface of strip 310 is attached snugly. The heat generated when the flexible light bar 310 is working is conducted by the first thermal conductive adhesive layer 200 and then dissipated to the outside world, so as to improve the heat dissipation efficiency of the LED lighting and prolong the service life of the LED lighting.
  • the area of the first thermally conductive adhesive layer 200 is larger than the area of the flexible light bars 310 , and the multiple flexible light bars 310 are located within the enclosure of the first thermally conductive adhesive layer 200 so that the first thermally conductive adhesive layer 200 can cover
  • the flexible light bar 310 is used to increase the heat dissipation area of the first thermal conductive adhesive layer 200 and improve the heat dissipation efficiency of the flexible light bar 310.
  • the upper and lower surfaces of the first thermally conductive adhesive layer 200 are sticky and can be adhered to the sealing film 100 and the plurality of flexible light bars 310 to reduce the connection structure of the first thermally conductive adhesive layer 200 and facilitate the second thermal conductive adhesive layer 200 .
  • a thermally conductive adhesive layer 200 is assembled. Reducing the thickness of the first thermally conductive adhesive layer 200 facilitates the first thermally conductive adhesive layer 200 to conduct heat from the plurality of flexible light bars 310 to the outside. In the up and down direction, the thickness of the first thermally conductive adhesive layer 200 is 0.4cm ⁇ 0.8cm, so that the LED lamp cloth has a certain degree of toughness and prevents the flexible light bar 310 from breaking during the bending process.
  • the LED lighting also includes a light-emitting unit 320 provided on a plurality of flexible light bars 310 and a flexible connection provided at one end of the plurality of flexible light bars 310.
  • Plate 330 The plurality of flexible light bars 310 are located between the first thermally conductive adhesive layer 200 and the second thermally conductive adhesive layer 400 , and the lower surfaces of the flexible light bars 310 are connected to the first thermally conductive adhesive layer 200 .
  • a second bonding pad 311 is provided on a side of the flexible light bar 310 away from the light-emitting unit 320 for soldering to the flexible circuit board 330 so that the flexible light bar 310 is electrically connected to the flexible connection board 330 .
  • the plurality of light-emitting units 320 are correspondingly disposed on the upper surfaces of the plurality of flexible light bars 310 .
  • the plurality of light-emitting units 320 pass through the second thermally conductive adhesive layer 400 so that the upper surfaces of the flexible light bars 310 emit light and illuminate the outside world.
  • the upper surface of the flexible light bar 310 on the peripheral side of the light-emitting unit 320 is in contact with the lower surface of the second thermally conductive adhesive layer 400 to improve the heat dissipation performance of the flexible light bar 310 and the light-emitting unit 320 .
  • a plurality of light-emitting units 320 are arranged on the upper surface of a flexible light bar 310 at intervals along the length direction of the flexible light bar 310 to facilitate bending of the LED lights.
  • the light-emitting unit 320 may be an LED light-emitting chip or a COB light-emitting chip.
  • the flexible connection board 330 is attached and connected to a side of one end of the plurality of flexible light bars 310 away from the light emitting unit 320 .
  • the flexible connection board 330 is electrically connected to an external power source (not shown in the figure) to provide energy for the flexible light bar 310 to cause the light-emitting unit 320 to emit light.
  • a first welding pad 331 is provided on the lower surface of the flexible connection board 330.
  • the flexible connection board 330 and the flexible light bar 310 are welded and connected through the first welding pad 331 and the second welding pad 311 to realize the connection between the flexible connection board 330 and the flexible light bar 310. Electrical connection.
  • the solder joints of the first soldering pad 331 and the second soldering pad 311 are located at one end of the flexible connecting board 330 facing the flexible light bar 310, so that when the flexible connecting board 330 and the flexible light bar 310 are bent, the first The soldering pad 331 and the second soldering pad 311 can ensure the electrical connection strength of the flexible connecting board 330 and the flexible light bar 310 and prevent the flexible connecting board 330 and the flexible light bar 310 from being separated.
  • a buffer layer 340 is provided on the lower surface of the flexible connection board 330 , and the buffer layer 340 extends along the spacing direction of the plurality of flexible light bars 310 .
  • the buffer layer 340 makes the bending part of the flexible connecting plate 330 have a waist shape, making it difficult to produce creases, preventing the flexible connecting plate 330 from breaking, and extending the service life of the LED lighting.
  • the second thermally conductive adhesive layer 400 has a plurality of heat dissipation slots 410 corresponding to the plurality of light-emitting units 320 .
  • the plurality of heat dissipation slots 410 accommodate a plurality of light emitting units 320 correspondingly.
  • the light emitting unit 320 passes through the heat dissipation slot 410 .
  • the lower surface of the second thermally conductive adhesive layer 400 is attached to the upper surfaces of the plurality of flexible light bars 310 , and the second thermally conductive adhesive layer 400 is located on the peripheral side of the light-emitting unit 320 .
  • the second thermally conductive adhesive layer 400 does not block the light emitted by the light-emitting unit 320, and the second thermally conductive adhesive layer 400 can absorb the heat generated when the light-emitting unit 320 emits light and conduct it to the outside world. In order to improve the heat dissipation efficiency of LED lighting during operation and extend the service life of LED lighting.
  • the area of the second thermally conductive adhesive layer 400 is larger than the area of the plurality of flexible light bars 310 .
  • the second thermally conductive adhesive layer 400 includes a grooved area 420 and an extended area 430 .
  • the heat dissipation slot 410 is located in the slot area 420, and the heat dissipation slots 410 in the slot area 420 respectively accommodate the light emitting units 320.
  • the lower surface of the grooved area 420 is attached to the upper surface of the plurality of flexible light bars 310.
  • the second thermally conductive adhesive layer 400 can simultaneously absorb the heat generated by the light-emitting unit 320 and the flexible light bar 310 when working, and dissipate it to the outside world to improve The heat dissipation efficiency of LED lighting.
  • the thickness of the second thermally conductive adhesive layer 400 is 0.4 cm -0.8cm. It can provide support and protection for the flexible light bar 310, prevent the flexible light bar 310 from breaking when the bending angle is too large, and thereby protect the flexible light bar 310.
  • the extension area 430 is arranged around the outer periphery of the grooved area 420.
  • the lower surface of the extension area 430 is in contact with and bonded to the periphery of the first thermally conductive adhesive layer 200 to wrap and protect the flexible light bar 310, and to improve the performance of the flexible light bar 310.
  • the heat dissipation efficiency extends the service life of LED lighting.
  • the outer periphery of the first thermally conductive adhesive layer 200 and the outer periphery of the second thermally conductive adhesive layer 400 overlap.
  • the light-transmitting film 500 is located on the upper side of the second thermally conductive adhesive layer 400 and the light-emitting unit 320, and the lower surface of the light-transmitting film 500 can fit into the grooved area 420. and the upper surface of the extension area 430.
  • the light-transmitting film 500 is located on the upper side of the light-emitting unit 320, and the light emitted by the light-emitting unit 320 can pass through the light-transmitting film 500 and be irradiated to the outside world.
  • the light-transmitting film 500 and the sealing film 100 can cover the first thermally conductive adhesive layer 200 and the second thermally conductive adhesive layer 400 .
  • the light-transmitting film 500 has good sealing performance.
  • the light-transmitting film 500 cooperates with the sealing film 100 to seal the LED lighting, so that the LED lighting can be used in underwater or humid environments and improve the reliability of the LED lighting.
  • a frosted layer is provided on the side of the light-transmitting film 500 facing the flexible light bar 310 .
  • the upper surface of the frosted layer closely adheres to the light-transmitting film 500 , and the lower surface of the frosted layer can adhere to the light-emitting unit 320 . In this way, the light emitted by the light-emitting unit 320 can be scattered, so that the light emitted by the LED lighting fixture to the external environment is more uniform.
  • the light-transmitting film 500 is frosted toward one side of the flexible light bar 310 to form a frosted layer 610 .
  • the LED lighting fixture also includes an edge 610, a fastening buckle 630 and an adhesive part 620 to enhance the sealing performance of the LED lighting fixture and improve the structural strength of the LED lighting fixture. and toughness, user-friendliness.
  • the wrapping 610 is located on the outer periphery of the sealing film 100 and the light-transmitting film 500 , and is sealingly connected to the sealing film 100 and the light-transmitting film 500 .
  • the wrapping 610 wraps the sealing film 100, the first thermally conductive adhesive layer 200, the flexible light bar 310, the light-emitting unit 320, the flexible connecting board 330, the second thermally conductive adhesive layer 400 and the light-transmitting film 500 to enhance the waterproofing of the LED lighting. Performance and toughness.
  • fixing portions 611 extend from upper and lower ends of the edge 610 toward the center of the light-transmitting film 500 .
  • the fixing portion 611 located at the upper end of the wrapping 610 contacts and limits the light-transmitting film 500
  • the fixing portion 611 located at the lower end of the wrapping 610 contacts and limits the sealing film 100 .
  • the two fixing parts 611 press and closely adhere the sealing film 100, the first thermally conductive adhesive layer 200, the flexible light bar 310, the second thermally conductive adhesive layer 400 and the light-transmitting film 500. It improves the structural strength of the LED lighting and enhances the toughness of the LED lighting, allowing the LED lighting to bend at larger angles to suit different usage scenarios.
  • the fastening buckle 630 penetrates the light-transmitting film 500, the second thermally conductive adhesive layer 400, the first thermally conductive adhesive layer 200 and the sealing film 100 in the up and down direction to enhance the structural strength of the LED lighting fixture. .
  • the fastening buckle 630 is sealed with the light-transmitting film 500 and the sealing film 100 to ensure the waterproof performance of the LED lighting.
  • there are multiple fastening buckles 630 and the plurality of fastening buckles 630 are spaced apart on the extension area 430 .
  • fastening buckles 630 which are arranged at the corners of the LED lighting fixtures, so that users can install the LED lighting fixtures on external supports through the fastening buckles 630 , and multiple LED lighting fixtures can also be installed.
  • the splicing of lights is used.
  • the adhesive member 620 can be fixedly disposed on a side of the light-transmitting film 500 away from the flexible light bar 310 to fix the LED lighting to the outside world and facilitate the use of the LED lighting.
  • the adhesive member 620 is disposed on a side of the sealing film 100 facing away from the flexible light strip 310 .
  • the adhesive part 620 extends along the edge 610 , and the two fixing parts 611 fix the adhesive part 620 on the sealing film 100 or the light-transmitting film 500 .
  • the adhesive member 620 has adhesiveness and can be adhered to the light-transmitting film 500 and/or the sealing film 100 .
  • the fastening buckle 630 is penetrated through the adhesive member 620 .
  • adhesive element 620 is Velcro.
  • the waterproof joint 640 is located on the side of the flexible light bar 310 away from the second thermally conductive adhesive layer 400.
  • the waterproof joint 640 passes through the sealing film 100 and is sealingly connected to the sealing film 100.
  • the flexible connection board 330 is electrically connected to an external power source through a waterproof connector 640 to provide energy for the flexible light bar 310 .
  • the waterproof connector 640 passes through the edge 610 and is electrically connected to an external power source.
  • the second heat dissipation glue layer 500 is provided with a plurality of light-emitting holes 440 corresponding to the plurality of light-emitting units 320 , and the plurality of light-emitting holes 440 accommodates a plurality of light-emitting units 320 , so that the first The lower surfaces of the two heat dissipation glue layers 500 are attached to the upper surfaces of the plurality of flexible light bars 310 , and the second heat dissipation glue layers 500 are located on the peripheral side of the light emitting unit 320 .
  • the second heat dissipation glue layer 500 to absorb the heat generated when the light-emitting unit 320 emits light, and does not block the light emitted by the light-emitting unit 320 from irradiating the external environment. In order to improve the heat dissipation efficiency of LED lighting during operation and extend the service life of LED lighting.
  • a plurality of lenses 650 are provided on the side of the flexible light bar 310 that emits light.
  • the lenses 650 are located on the side of the soft light film 600 facing the flexible light bar 310 . It is used to gather the light emitted by the light-emitting unit 320 and then illuminate it on the external environment, thereby increasing the brightness of the LED lighting light and increasing the lighting effect of light and shadow art.
  • the plurality of lenses 650 are correspondingly covered on the plurality of light-emitting units 320 , and the lenses 650 pass through the light-emitting holes 440 .
  • One end of the lens 650 facing the light emitting unit 320 is in contact with the upper surface of the flexible light bar 310 .
  • the peripheral side wall of the lens 650 abuts the inner peripheral wall of the light-emitting hole 440 on the second heat dissipation glue layer 500, so that the second heat dissipation glue layer 500 can limit the lens 650.
  • the lens 650 can focus the light emitted by the light-emitting unit 320 so that the light emitted by the light-emitting unit 320 can evenly illuminate the outside world and enhance the brightness of the light.
  • the side of the lens 650 facing away from the flexible light bar 310 is attached to the light-diffusing film 600, so that the overall thickness of the LED lighting fixture is smaller, making it easier to bend, place and use.
  • lens 650 is a curved structure.
  • the plurality of flexible light strips 310 include RGB light strips and yellow and white light strips.
  • the mixed setting of RGB light strips and yellow and white light strips enables all LEDs in the lighting to emit bi-color or multi-color light, and then combine the two-color or multi-color light through the lens to achieve more lighting effects.
  • the LED lighting when the LED lighting is working, the LED lighting can be fixed on different usage scenarios through the adhesive part 620.
  • the first thermally conductive adhesive layer 200 and the second thermally conductive adhesive layer 400 can absorb the heat generated when the flexible light bar 310, the light-emitting unit 320 and the flexible connection board 330 are working, and achieve heat exchange with the outside world to achieve
  • the flexible light strip 310 dissipates heat quickly, improves the heat dissipation efficiency of LED lighting, and extends the service life of LED lighting.
  • the flexible connection board 330 is connected to an external power source to provide power for the plurality of flexible light bars 310 .
  • the plurality of light-emitting units 320 are packaged on the flexible light bar 310 along the length direction of the flexible light bar 310.
  • the first thermal conductive adhesive layer 200 is attached to a side of the plurality of flexible light bars 310 away from the light-emitting units 320.
  • the heat dissipation groove 410 contains multiple light-emitting units 320. lighting unit 320.
  • the first thermally conductive adhesive layer 200 absorbs the heat of the plurality of flexible light bars 310 and the plurality of light-emitting units 320 and conducts heat exchange with the outside world, thereby improving the heat dissipation efficiency of the LED lighting and prolonging the LED lighting.
  • the service life of the lamp is long and the user experience is good.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

本申请公开一种LED布灯，包括：密封膜（100）、第一导热胶层（200）、多个柔性灯条（310）、柔性连接板（330）级透光膜（500），多个柔性灯条（310）贴合于第一导热胶层（200）背离密封膜（100）的一侧面。发光单元（320）在发光时，第一导热胶层（200）吸收多个柔性灯条（310）及多个发光单元（320）的热量，并于外界进行热交换，提高LED布灯的散热效率，延长了LED布灯的使用寿命。

Description

LED布灯 技术领域
本申请要求于2022年07月18日提交中国专利局、申请号为202221850694.4、发明名称为“LED布灯”及2022年07月18日提交中国专利局、申请号为202221852519.9、发明名称为“COB布灯”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
本申请涉及发光装置技术领域，特别涉及一种LED布灯。
 背景技术
随着国民经济的发展，越来越多的娱乐方式开始走入人们的日常生活中，拍照、摄像摄影等光影艺术活动的数量也随之不断增加。
摄像摄影一般对光照的要求比较高，为了满足现场光照的要求，摄影师均会在拍摄现场进行灯光布置，以达到摄影补光的目的。而LED灯由于其具有节能环保、发光能效高等特点，其已被广泛地应用于摄像摄影的补光中。目前市面上存在有多种用于摄影补光的LED布灯，其内置有多个LED发光单元。但现有的LED布灯为保障其灯光效果，使得LED布灯内多个发光单元之间的间距小，发光单元设置较为密集。使得多个发光电源的所发出的热量无法及时散发至外界，从而减少了布灯的使用寿命，用户体验差。
因而现有技术还有待改进和提高。
 技术问题
本申请提供一种LED布灯，能够在不降低灯光效果的情况下，提高发光单元的散热效率。
 技术解决方案
本申请实施例提供一种LED布灯，包括：密封膜、第一导热胶层、多个柔性灯条、柔性连接板以及透光膜；第一导热胶层，其贴合于所述密封膜的一侧面；多个柔性灯条平行且间隔设置；多个所述柔性灯条贴合于所述第一导热胶层背离所述密封膜的一侧面；每所述柔性灯条背离所述第一导热胶层的一侧面上封装有多个发光单元，多个所述发光单元沿所述柔性灯条的长度方向间隔设置；柔性连接板，其设置于多个所述柔性灯条的一端，多个所述柔性灯条通过所述柔性连接板与外界电源电连接；透光膜设置于多个所述柔性灯条背离所述第一导热胶层的一侧。
在一些实施例中，所述LED布灯还包括第二导热胶层，所述第二导热胶层贴合于所述柔性灯条设置所述发光单元的一侧面。
在一些实施例中，所述第二导热胶层上开设有多个散热槽，所述散热槽沿所述柔性灯条的长度方向延伸，一所述散热槽对应容置所述柔性灯条上的所述发光单元。
在一些实施例中，所述第一导热胶层的面积及所述第二导热胶层的面积均大于多个所述柔性灯条的面积。
在一些实施例中，所述第一导热胶层和/或第二导热胶层的厚度为0.4cm-0.8cm。
在一些实施例中， 在一些实施例中，所述LED布灯还包括多个透镜，所述透镜位于柔性线路板设置发光单元的一侧，且每个所述发光单元上均对应罩设有一个所述透镜。
在一些实施例中，所述LED布灯还包括第二导热胶层，所述第二导热胶层对应所述发光单元开设有多个发光孔，所述发光孔内对应容置所述透镜，所述第二导热胶层的一侧面贴合于所述柔性线路板。
在一些实施例中，所述透光膜贴合于所述透镜背离所述柔性灯条的一侧。
在一些实施例中，所述透镜的周侧壁抵接所述第二散热胶层上所述发光孔的内周壁。
在一些实施例中，还包括包边，所述包边沿所述透光膜的外周延伸；所述包边包覆并限位所述密封膜、所述第一导热胶层、所述第二导热胶层及所述透光膜的边缘。
在一些实施例中，多个所述柔性灯条包括RGB灯条及黄白光灯条。
在一些实施例中，所述透光膜的一侧设置磨砂层。
在一些实施例中，所述柔性连接板背离所述发光单元的一侧面上设置有缓冲层，所述缓冲层沿多个所述柔性灯条的间隔方向延伸。
在一些实施例中，所述柔性连接板贴合于所述柔性灯条背离所述发光单元的一侧面；所述柔性连接板背离所述柔性灯条的一侧面上设置有第一焊盘，所述柔性灯条背离所述发光单元的一侧面相对于所述第一焊盘设置有第二焊盘；所述第一焊盘与所述第二焊盘焊接连接，其焊点位于所述柔性连接板朝向所述柔性灯条的一端。
在一些实施例中，还包括粘附件，所述粘附件设置于所述密封膜和/或所述透光膜背离所述柔性灯条的一侧面。
在一些实施例中，所述粘附件沿所述密封膜或所述透光膜的周侧延伸。
在一些实施例中，所述粘附件为魔术贴。
在一些实施例中，所述LED布灯包括防水接头，所述防水接头与所述柔性连接板电连接，所述防水接头能够与所述外界电源电连接。
在一些实施例中，还包括多个紧固扣，多个所述紧固扣穿设所述密封膜、所述第一导热胶层及所述透光膜。
在一些实施例中，所述密封膜、所述第一导热胶层及所述透光膜贴合连接以呈层叠结构。
 有益效果
本申请中，多个发光单元沿柔性灯条的长度方向封装于柔性灯条上，第一导热胶层贴合于多个柔性灯条背离发光单元的一侧面。发光单元在发光时，第一导热胶层吸收多个柔性灯条及多个发光单元的热量，并与外界进行热交换，从而提高了LED布灯的散热效率，延长了LED布灯的使用寿命，用户体验感好。
 附图说明
图1是本发明LED布灯实施例的立体结构示意图。
图2是本发明LED布灯实施例的分解结构示意图。
图3是图2所示结构的俯视结构示意图。
图4是图3所示结构中A-A处的剖视图。
图5是图4所示结构中B处的放大图。
图6是图4所示结构中C处的放大图。
图7是本发明LED布灯实施例柔性灯条与柔性连接板的俯视图。
图8是图7所示结构的侧视图。
图9是图8所示结构中D处的放大图。
图10是本发明LED布灯柔性连接板弯曲状态的结构示意图。
图11是本发明LED布灯另一实施例的立体结构示意图。
图12是图11所示结构的分解示意图。
图13是图11所示结构的俯视图。
图14是图13中E-E处的剖视图。
图15是图14中F处的结构放大图。
 本发明的实施方式
本申请提供一种LED布灯，为使本申请的目的、技术方案及效果更加清楚、明确，以下参照附图并举实施例对本申请进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本申请，并不用于限定本申请。
参阅图1，为了便于理解和参考，以LED布灯发光的方向为下文的上方，以背离上方的方向为下文的下方。
参阅图1和图2，本申请提供一种LED布灯，其包括依次层叠设置的密封膜100、第一导热胶层200、柔性灯条310、第二导热胶层400及透光膜500。密封膜100用于防止外界液体或汽体进入LED布灯内。第一导热胶层200贴合密封膜100的一侧面。柔性灯条310的一侧发光以照亮外界，柔性灯条310背离发光的一侧面贴合于第一导热胶层200。第二导热胶层400位于柔性灯条310发光的一侧面，以为柔性灯条310散热。透光膜500以用于透过柔性灯条310发出的光线，并与密封膜100密封整个布灯。第一导热胶层200及第二导热胶层400能够降低柔性灯条310发光时产生的热量，提高LED布灯的散热效果，延长LED布灯的使用寿命。
参阅图2至图6，在本实施例中，密封膜100位于LED布灯的下部，其上表面与第一导热胶层200贴合。一方面，便于第一导热胶层200将柔性灯条310的热量通过密封膜100与外界实现热交换。另一方面，密封膜100与第一导热胶层200贴合连接以呈层叠结构，使得LED布灯的结构强度高，韧性好，便于折弯，能够适用于多种使用场景。
密封膜100具有防水功能，其与透光膜500共同封闭LED布灯。当 LED布灯在水中或湿润环境中使用时，防止外界的液体或气体进入LED布灯内部，以防止LED布灯内部器件锈蚀或短路，使得LED布灯能够适用于多种使用场景，增加LED布灯的可靠性。
参阅图2、图5和图6，在本实施例中，第一导热胶层200的下表面与密封膜100的上表面贴合连接，第一导热胶层200的上表面与多个柔性灯条310的下表面贴合连接。柔性灯条310工作时产生的热量经过第一导热胶层200传导后散发至外界，以提高LED布灯的散热效率，延长LED布灯的使用寿命。
在一些实施例中，第一导热胶层200的面积大于柔性灯条310的面积，多个柔性灯条310位于第一导热胶层200的围合范围内，以便于第一导热胶层200覆盖柔性灯条310，以增加第一导热胶层200的散热面积，提高柔性灯条310的散热效率。
在一些实施例中，第一导热胶层200的上表面及下表面具有粘性，其能够粘贴于密封膜100及多个柔性灯条310，以减少第一导热胶层200的连接结构，便于第一导热胶层200组装。降低第一导热胶层200的厚度，便于第一导热胶层200将多个柔性灯条310的热量传导至外界。在上下方向上，第一导热胶层200的厚度为0.4cm~0.8cm，使得LED布灯具有一定韧性，防止柔性灯条310折弯过程中断裂。
参阅图2、图5、图6至图9，在本实施例中，LED布灯还包括设置于多个柔性灯条310上的发光单元320及设置于多个柔性灯条310一端的柔性连接板330。多个柔性灯条310位于第一导热胶层200及第二导热胶层400之间，柔性灯条310的下表面贴合连接于第一导热胶层200。
在一些实施例中，柔性灯条310背离发光单元320的一侧面上设置第二焊盘311，以用于与柔性线路板330焊接，使柔性灯条310与柔性连接板330电连接。
多个发光单元320对应设置于多个柔性灯条310的上表面，多个发光单元320穿设第二导热胶层400，以使柔性灯条310的上表面发光并照射外界。发光单元320周侧的柔性灯条310上表面与第二导热胶层400的下表面相贴合，以提高柔性灯条310及发光单元320的散热性能。在一些实施例中，一柔性灯条310的上表面上沿柔性灯条310的长度方向间隔设置有多个发光单元320，以便于LED布灯折弯。
在一些实施例中，发光单元320可以为LED发光芯片，还可以为COB发光芯片。
参阅图9和图10，在本实施例中，柔性连接板330贴合连接于多个柔性灯条310一端背离发光单元320的一侧面。柔性连接板330与外界电源（图中未示出）电连接，以为柔性灯条310提供能源，以使发光单元320发光。
柔性连接板330的下表面设置有第一焊盘331，柔性连接板330与柔性灯条310通过第一焊盘331与第二焊盘311焊接连接，实现柔性连接板330与柔性灯条310的电连接。在一些实施例中，第一焊盘331及第二焊盘311的焊点位于柔性连接板330朝向柔性灯条310的一端，以使柔性连接板330及柔性灯条310弯折时，第一焊盘331及第二焊盘311能够保障柔性连接板330及柔性灯条310的电连接强度，防止柔性连接板330及柔性灯条310分离。
在一些实施例中，柔性连接板330的下表面设置有缓冲层340，缓冲层340沿多个柔性灯条310的间隔方向延伸。当柔性连接板330弯曲时，缓冲层340使得柔性连接板330弯曲处呈腰形，不易产生折痕，防止柔性连接板330断裂，延长LED布灯的使用寿命。
参阅图2、图5和图6，在本实施例中，第二导热胶层400对应多个发光单元320开设有多个散热槽410。多个散热槽410对应容置多个发光单元320。发光单元320穿设散热槽410。第二导热胶层400的下表面贴合于多个柔性灯条310的上表面，第二导热胶层400位于发光单元320的周侧。第二导热胶层400不遮挡发光单元320发出的光线，且第二导热胶层400能够吸收发光单元320发光时产生的热量并传导至外界。以提高LED布灯工作时的散热效率，延长LED布灯的使用寿命。
在一些实施例中，第二导热胶层400的面积大于多个柔性灯条310的面积。第二导热胶层400包括开槽区420及延伸区430。散热槽410位于开槽区420内，开槽区420内的散热槽410内分别对应容置发光单元320。开槽区420的下表面贴合于多个柔性灯条310的上表面，第二导热胶层400能够同时吸收发光单元320及柔性灯条310工作时产生的热量，并发散至外界，以提高LED布灯的散热效率。在一些实施例中，第二导热胶层400的厚度为0.4 cm -0.8cm。其能够为柔性灯条310提供支撑及保护，防止柔性灯条310弯曲角度过大时断裂，以保护柔性灯条310。
延伸区430环绕开槽区420的外周设置，延伸区430的下表面与第一导热胶层200的周缘相贴合并粘接，以包裹并保护柔性灯条310，并能够提高柔性灯条310的散热效率，延长LED布灯的使用寿命。在一些实施例中，在上下方向上，第一导热胶层200的外周及第二导热胶层400的外周相重合。
参阅图2、图5和图6，在本实施例中，透光膜500位于第二导热胶层400及发光单元320的上侧，透光膜500的下表面能够贴合于开槽区420及延伸区430的上表面。在一些实施例中，透光膜500位于发光单元320的上侧， 发光单元320发散的光线能够通过透光膜500以照射至外界。
在一些实施例中，透光膜500及密封膜100能够覆盖第一导热胶层200及第二导热胶层400。透光膜500具有良好的密封性能，透光膜500与密封膜100相配合，以密封LED布灯，使得LED布灯能够适用水下或潮湿环境，提高LED布灯的可靠性。
透光膜500朝向柔性灯条310的一侧设置有磨砂层，磨砂层的上表面紧密贴合于透光膜500，磨砂层的下表面能够贴合于发光单元320上。以能够对发光单元320发出的光线散射，使得LED布灯照射于外界环境的光线更均匀。在另一些实施例中，透光膜500朝向柔性灯条310的一侧面磨砂以形成磨砂层610。
参阅图2、图5和图6，在本实施例中，LED布灯还包括包边610、紧固扣630及粘附件620，以加强LED布灯的密封性能，提高LED布灯的结构强度和韧性，便于用户使用。
包边610位于密封膜100及透光膜500的外周，包边610与密封膜100及透光膜500密封连接。包边610包裹密封膜100、第一导热胶层200、柔性灯条310、发光单元320、柔性连接板330、第二导热胶层400及透光膜500，以用于加强LED布灯的防水性能和韧性。
在一些实施例中，包边610的上下两端朝向透光膜500的中心延伸有固定部611。位于包边610上端的固定部611抵接并限位透光膜500，位于包边610下端的固定部611抵接并限位密封膜100。两固定部611压持并使密封膜100、第一导热胶层200、柔性灯条310、第二导热胶层400及透光膜500紧密贴合。提高了LED布灯的结构强度，增强了LED布灯的韧性，使得LED布灯弯曲较大角度以适用于不同的使用场景。
参阅图7，在本实施例中，紧固扣630沿上下方向穿设透光膜500、第二导热胶层400、第一导热胶层200及密封膜100，以加强LED布灯的结构强度。紧固扣630与透光膜500及密封膜100密封连接，以保障LED布灯的防水性能。在一些实施例中，紧固扣630为多个，多个紧固扣630间隔设置于延伸区430上。在另一些实施例中，紧固扣630为四个，其设置于LED布灯的角落，以使用户可通过紧固扣630将LED布灯安装于外界支架上，还可以实现多张LED布灯的拼接使用。
参阅图3和图7，在本实施例中，粘附件620能够固定设置于透光膜500背离柔性灯条310的一侧面，以能够将LED布灯固定于外界上，便于LED布灯使用。在另一些实施例中，粘附件620设置于密封膜100背离柔性灯条310的一侧面。
粘附件620沿包边610延伸，两固定部611将粘附件620固定于密封膜100或透光膜500上。在一些实施例中，粘附件620具有粘性，其能够粘贴于透光膜500和/或密封膜100上。在另一些实施例中，紧固扣630穿设于粘附件620。在一些实施例中，粘附件620为魔术贴。
参阅图2、图4和图5，在本实施例中，防水接头640位于柔性灯条310背离第二导热胶层400的一侧，防水接头640穿设密封膜100并与密封膜100密封连接。柔性连接板330通过防水接头640与外界电源电连接，以为柔性灯条310提供能源。在一些实施例中，防水接头640穿设包边610，并与外界电源电连接。
参阅图11至图15，在另一实施方案中，第二散热胶层500对应多个发光单元320开设有多个发光孔440，多个发光孔440对应容置多个发光单元320，使得第二散热胶层500的下表面贴合于多个柔性灯条310的上表面，第二散热胶层500位于发光单元320的周侧。使得第二散热胶层500吸收发光单元320发光时产生的热量，且不遮挡发光单元320发出的光线照射外界环境。以提高LED布灯工作时的散热效率，延长LED布灯的使用寿命。
柔性灯条310发光的一侧设置有多个透镜650，透镜650位于柔光膜600朝向柔性灯条310的一侧。以用于将发光单元320发出的光线聚集后照射于外界环境上，提高LED布灯光线的亮度，增加光影艺术的灯光效果。
多个透镜650分别对应罩设于多个发光单元320上，且透镜650穿设发光孔440。透镜650朝向发光单元320的一端抵接于柔性灯条310的上表面。透镜650的周侧壁抵接第二散热胶层500上发光孔440的内周壁，使得第二散热胶层500能够限位透镜650。
透镜650能够聚焦发光单元320发出的光线，使得发光单元320发出的光线均匀照射于外界，增强光线亮度。在一些实施例中，透镜650背离柔性灯条310的一侧面贴合于柔光膜600，以使LED布灯整体的厚度较小，便于弯曲、摆放和使用。在一些实施例中，透镜650为弧形结构。
在另一些实施例中，多个柔性灯条310包括RGB灯条及黄白光灯条。RGB灯条及黄白光灯条混合设置，使得布灯中的所有led能够发出双色光或多色光，再通过透镜对双色光或多色光进行合光，以达到更多的光照效果。
参阅图1至图10，在本发明中，LED布灯工作时，LED布灯能够通过粘附件620固定于不同使用场景上。LED布灯在发光时，第一导热胶层200及第二导热胶层400能够吸收柔性灯条310、发光单元320及柔性连接板330工作时产生的热量，并与外界实现热交换，以实现柔性灯条310快速散热，提高LED布灯的散热效率，延长LED布灯的使用寿命。
本申请中，LED布灯发光时，柔性连接板330连接外界电源以为多个柔性灯条310供电。多个发光单元320沿柔性灯条310的长度方向封装于柔性灯条310上，第一导热胶层200贴合于多个柔性灯条310背离发光单元320的一侧面，散热槽410内容置多个发光单元320。发光单元320在发光时，第一导热胶层200吸收多个柔性灯条310及多个发光单元320的热量，并与外界进行热交换，从而提高了LED布灯的散热效率，延长了LED布灯的使用寿命，用户体验感好。
虽然已参照几个典型实施方式描述了本申请，但应当理解，所用的术语是说明和示例性、而非限制性的术语。由于本申请能够以多种形式具体实施而不脱离发明的精神或实质，所以应当理解，上述实施方式不限于任何前述的细节，而应在随附权利要求所限定的精神和范围内广泛地解释，因此落入权利要求或其等效范围内的全部变化和改型都应为随附权利要求所涵盖。

Claims (20)

  1. 一种LED布灯，其特征在于，包括：
    密封膜；
    第一导热胶层，其贴合于所述密封膜的一侧面；
    多个柔性灯条，其平行且间隔设置；多个所述柔性灯条贴合于所述第一导热胶层背离所述密封膜的一侧面；每所述柔性灯条背离所述第一导热胶层的一侧面上封装有多个发光单元，多个所述发光单元沿所述柔性灯条的长度方向间隔设置；
    柔性连接板，其设置于多个所述柔性灯条的一端，多个所述柔性灯条通过所述柔性连接板与外界电源电连接；
    透光膜，其设置于多个所述柔性灯条背离所述第一导热胶层的一侧。
  2. 根据权利要求1所述的LED布灯，其特征在于，所述LED布灯还包括第二导热胶层，所述第二导热胶层贴合于所述柔性灯条设置所述发光单元的一侧面。
  3. 根据权利要求2所述的LED布灯，其特征在于，所述第二导热胶层上开设有多个散热槽，所述散热槽沿所述柔性灯条的长度方向延伸，一所述散热槽对应容置所述柔性灯条上的所述发光单元。
  4. 根据权利要求2所述的LED布灯，其特征在于，所述第一导热胶层的面积及所述第二导热胶层的面积均大于多个所述柔性灯条的面积。
  5. 根据权利要求2所述的LED布灯，其特征在于，所述第一导热胶层和/或第二导热胶层的厚度为0.4cm-0.8cm。
  6. 根据权利要求1所述的LED布灯，其特征在于，所述LED布灯还包括多个透镜，所述透镜位于柔性线路板设置发光单元的一侧，且每个所述发光单元上均对应罩设有一个所述透镜。
  7. 根据权利要求6所述的LED布灯，其特征在于，所述LED布灯还包括第二导热胶层，所述第二导热胶层对应所述发光单元开设有多个发光孔，所述发光孔内对应容置所述透镜，所述第二导热胶层的一侧面贴合于所述柔性线路板。
  8. 根据权利要求7所述的LED布灯，其特征在于，所述透光膜贴合于所述透镜背离所述柔性灯条的一侧。
  9. 根据权利要求7所述的LED布灯，其特征在于，所述透镜的周侧壁抵接所述第二散热胶层上所述发光孔的内周壁。
  10. 根据权利要求2所述的LED布灯，其特征在于，还包括包边，所述包边沿所述透光膜的外周延伸；所述包边包覆并限位所述密封膜、所述第一导热胶层、所述第二导热胶层及所述透光膜的边缘。
  11. 根据权利要求10所述的LED布灯，其特征在于，所述包边的上下两端朝向所述透光膜的中心延伸有固定部，上端的所述固定部抵接并限位透光膜，下端的所述固定部抵接并限位所述密封膜。
  12. 根据权利要求1所述的LED布灯，其特征在于，多个所述柔性灯条包括RGB灯条及黄白光灯条。
  13. 根据权利要求1所述的LED布灯，其特征在于，所述透光膜的一侧设置磨砂层。
  14. 根据权利要求1所述的LED布灯，其特征在于，所述柔性连接板背离所述发光单元的一侧面上设置有缓冲层，所述缓冲层沿多个所述柔性灯条的间隔方向延伸。
  15. 根据权利要求1所述的LED布灯，其特征在于，所述柔性连接板贴合于所述柔性灯条背离所述发光单元的一侧面；所述柔性连接板背离所述柔性灯条的一侧面上设置有第一焊盘，所述柔性灯条背离所述发光单元的一侧面相对于所述第一焊盘设置有第二焊盘；所述第一焊盘与所述第二焊盘焊接连接，其焊点位于所述柔性连接板朝向所述柔性灯条的一端。
  16. 根据权利要求1所述的LED布灯，其特征在于，还包括粘附件，所述粘附件设置于所述密封膜和/或所述透光膜背离所述柔性灯条的一侧面。
  17. 根据权利要求16所述的LED布灯，其特征在于，所述粘附件沿所述密封膜或所述透光膜的周侧延伸。
  18. 根据权利要求1所述的LED布灯，其特征在于，所述LED布灯包括防水接头，所述防水接头与所述柔性连接板电连接，所述防水接头能够与所述外界电源电连接。
  19. 根据权利要求1所述的LED布灯，其特征在于，还包括多个紧固扣，多个所述紧固扣穿设所述密封膜、所述第一导热胶层及所述透光膜。
  20. 根据权利要求1所述的LED布灯，其特征在于，所述密封膜、所述第一导热胶层及所述透光膜贴合连接以呈层叠结构。
PCT/CN2022/136624 2022-07-18 2022-12-05 Led 布灯 WO2024016562A1 (zh)

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