WO2015192425A1 - 双面散热的发光二极管（led）显示屏的电路板 - Google Patents

双面散热的发光二极管（led）显示屏的电路板 Download PDF

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Publication number
WO2015192425A1
WO2015192425A1 PCT/CN2014/082297 CN2014082297W WO2015192425A1 WO 2015192425 A1 WO2015192425 A1 WO 2015192425A1 CN 2014082297 W CN2014082297 W CN 2014082297W WO 2015192425 A1 WO2015192425 A1 WO 2015192425A1
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WIPO (PCT)
Prior art keywords
circuit board
heat
led
heat dissipation
display screen
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2014/082297
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English (en)
French (fr)
Inventor
黄欣
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Individual
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Individual
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Publication of WO2015192425A1 publication Critical patent/WO2015192425A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details

Definitions

  • Double-sided heat-dissipating light-emitting diode (LED) display circuit board Double-sided heat-dissipating light-emitting diode (LED) display circuit board
  • the utility model relates to a circuit board in an LED display, in particular to a circuit board of an LED display screen capable of dissipating heat on both sides
  • LED display screens With the continuous development of science and technology, the application of LED display screens has become more and more extensive. It is well known that the energy produced by an LED source, in addition to being visible light, is converted to heat. Since electronic products are gradually moving toward high density and high integration, LED products are no exception. LED power is increased, and heat dissipation has become an arduous task. The light decay of LED or its lifetime is directly related to its junction temperature. The heat dissipation is not good, the junction temperature is high, and the lifetime is short. The heat dissipation of this LED display puts higher demands on it.
  • the present invention provides a circuit board for a double-sided heat-dissipating LED display screen, which can solve the problem that the light-emitting surface of the circuit board in the LED display screen cannot be cooled well.
  • the circuit board of the double-sided heat-dissipating LED display panel comprises an LED lamp and a circuit board, characterized in that the surface of the circuit board is coated with an insulating layer and outside the insulating layer. It is coated with a very thin layer of heat-conducting material, and the heat-conducting material has a heat-dissipating layer. The light-emitting surface of the heat-dissipating layer and the back surface are provided with a plurality of scattered materials. The hot hole, the LED light is mounted on the circuit board.
  • the heat conductive material is a thermal grease.
  • the utility model has the beneficial effects that: the LED display screen of the utility model passes the light surface of the circuit board and the heat dissipation hole of the back surface, so that a large amount of heat generated by the circuit board is well distributed, thereby increasing the heat dissipation effect, thereby increasing the service life of the LED display screen. And the structure of the utility model is reasonable.
  • Figure 1 is a schematic view of the structure of the present invention.
  • the circuit board of the double-sided heat-dissipating LED display provided by the utility model increases the heat dissipation of the LED circuit board through the heat dissipation design of the front and back sides.
  • the specific structure is as shown in FIG. 1:
  • the LED board 2 is mounted on the circuit board 1.
  • On the surface of the circuit board 1, the area without the LED lamp is provided with an insulating layer 3, and the outer layer of the insulating layer 3 is coated with a thin heat conductive material. 4. It is preferred to use a thermal grease.
  • the outermost layer is covered with a heat dissipation layer 5
  • the utility model is superior to the prior art in that the heat dissipation layer 5 on the light-emitting surface and the backlight surface of the circuit board is uniformly provided with a plurality of heat dissipation holes for increasing the heat dissipation surface thereof to achieve better heat dissipation effect.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Led Device Packages (AREA)

Abstract

提供一种双面散热的发光二极管（LED）显示屏的电路板，包括LED灯（2）、电路板（1），在电路板（1）表面涂有绝缘层（3），绝缘层（3）外涂有很薄的一层导热材料（4），导热材料（4）外有散热层（5），散热层（5）的灯亮面和背面均设有若干个散热孔（6），LED灯（2）贴装到电路板（1）上，导热材料（4）是导热硅脂。通过增加电路板（1）的散热效果，使LED显示屏使用寿命增加。

Description

双面散热的发光二极管 （LED) 显示屏的电路板 技术领域
本实用新型涉及 LED显示中的电路板，尤其是能够双面散热的 LED 显示屏的电路板
體
随着科学技术的不断发展， LED显示屏的应用也越来越广。 众所 周知， LED光源产生的能量， 除了作为可视光消耗之外， 其它能量都 转换成了热。 由于现在电子产品逐渐向高密度， 高集成度发展， LED 产品也不例外。 LED功率加大， 散热也成为一项艰巨的任务， LED的光 衰或其寿命是直接和其结温有关， 散热不好结温就高， 寿命就短。 这 个 LED显示屏的散热提出了更高的要求。 现有技术中的散热装置多数 是在 LED屏幕的后方设置散热装置， 这样可以进行部分的散热， 但是 对于 LED灯以及电路板发光面产生的热量没有办法做到较好的散热效 果。 现在就缺少一种能够全方位散热的 LED显示屏的散热装置。
实用新型内容
针对现有技术中的不足， 本实用新型提供一种双面散热的 LED显 示屏的电路板， 能够解决 LED显示屏中电路板发光面不能较好散热的 问题。
为了解决上述技术问题， 本实用新型的技术方案如下： 双面散热的 LED显示屏的电路板， 包括 LED灯、 电路板， 其特征 在于， 在所述电路板表面涂有绝缘层， 绝缘层外涂有很薄的一层导热 材料， 导热材料外有散热层， 散热层的灯亮面和背面均设有若干个散 热孔， 所述 LED灯贴装到电路板上。
所述导热材料为导热硅脂。
本实用新型的有益效果在于： 本实用新型的 LED显示屏通过电路 板的灯亮面和背面的散热孔， 使电路板产生的大量的热量良好散发， 增加了散热效果， 进而增加 LED显示屏使用寿命， 并且本实用新型结 构合理。
附图说明
下面结合附图以及实施例对本实用新型做进一歩的说明。
图 1为本实用新型的结构示意图。
具体实施方式
本实用新型提供的双面散热的 LED显示屏的电路板，通过正反两 面的散热设计，增加 LED电路板热量的散发。其具体结构如图 1所示： 电路板 1上贴装有 LED灯 2， 在电路板 1的表面， 没有 LED灯的 区域设有绝缘层 3， 在绝缘层 3外涂有很薄的导热材料 4， 优选使用 导热硅脂。 最外面覆盖有散热层 5
另外， 本实用新型优于现有技术的地方在于， 在电路板是发光面 以及背光面的散热层 5均匀设有若干个散热孔， 用以增加其散热面， 达到较好的散热效果。
以上所述仅是本发明创造的优选实施方式， 应当指出： 对于本技术领 域的普通技术人员来说， 在不脱离本发明创造所述原理的前提下， 还 可以做出若干改进和润饰，这些改进和润饰也应视为本发明创造的保 护范围。

Claims

权利要求
1、 双面散热的 LED显示屏的电路板， 包括 LED灯、 电路板， 其 特征在于， 在所述电路板表面涂有绝缘层， 绝缘层外涂有很薄的一层 导热材料， 导热材料外有散热层， 散热层的灯亮面和背面均匀设有若 干个散热孔， 所述 LED灯贴装到电路板上。
2、根据权利要求 1所述的适用于大屏幕 LED显示屏的散热装置， 其特征还在于， 所述导热材料为导热硅脂。
PCT/CN2014/082297 2014-06-18 2014-07-16 双面散热的发光二极管（led）显示屏的电路板 Ceased WO2015192425A1 (zh)

Applications Claiming Priority (2)

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CN201420323580.3 2014-06-18
CN201420323580 2014-06-18

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WO2015192425A1 true WO2015192425A1 (zh) 2015-12-23

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111713183A (zh) * 2018-02-12 2020-09-25 昕诺飞控股有限公司 包括用于发光元件的衬底的照明装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201682690U (zh) * 2010-04-08 2010-12-22 梅州市志浩电子科技有限公司 印刷电路板散热装置
CN203445158U (zh) * 2013-01-31 2014-02-19 光明半导体（天津）有限公司 采用具有散热图案的金属基印刷电路板的发光二极管模块
CN102109126B (zh) * 2009-12-24 2014-03-12 东芝照明技术株式会社 照明装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102109126B (zh) * 2009-12-24 2014-03-12 东芝照明技术株式会社 照明装置
CN201682690U (zh) * 2010-04-08 2010-12-22 梅州市志浩电子科技有限公司 印刷电路板散热装置
CN203445158U (zh) * 2013-01-31 2014-02-19 光明半导体（天津）有限公司 采用具有散热图案的金属基印刷电路板的发光二极管模块

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111713183A (zh) * 2018-02-12 2020-09-25 昕诺飞控股有限公司 包括用于发光元件的衬底的照明装置
EP3753380A1 (en) * 2018-02-12 2020-12-23 Signify Holding B.V. Lighting arrangement comprising a substrate for light emitting elements

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