WO2015192425A1 - Carte de circuit imprimé qui peut dissiper la chaleur à partir de deux côtés pour un écran d'affichage à diodes électroluminescentes (del) - Google Patents

Carte de circuit imprimé qui peut dissiper la chaleur à partir de deux côtés pour un écran d'affichage à diodes électroluminescentes (del) Download PDF

Info

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
Authority
WO
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
Other languages
English (en)
Chinese (zh)
Inventor
黄欣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Publication of WO2015192425A1 publication Critical patent/WO2015192425A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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

L'invention concerne une carte de circuit imprimé qui peut dissiper la chaleur à partir de deux côtés, pour un écran d'affichage à diodes électroluminescentes (DEL). La carte de circuit imprimé comprend une lampe à DEL (2) et une carte de circuit imprimé (1). Une couche d'isolation (3) est recouverte sur une surface de la carte de circuit imprimé (1). Une couche très fine d'un matériau thermoconducteur (4) est revêtue à l'extérieur de la couche d'isolation (3). Une couche de dissipation de chaleur (5) est disposée à l'extérieur du matériau thermoconducteur (4). De multiples trous de dissipation de chaleur (6) sont formés sur un côté éclairé et un côté arrière de la couche de dissipation de chaleur (5). La lampe à DEL (2) est fixée sur la carte de circuit imprimé (1). Le matériau thermoconducteur (4) est de la graisse de silicone thermoconductrice. En améliorant l'effet de dissipation thermique de la carte de circuit imprimé (1), la durée de vie de l'écran d'affichage à DEL est augmentée.
PCT/CN2014/082297 2014-06-18 2014-07-16 Carte de circuit imprimé qui peut dissiper la chaleur à partir de deux côtés pour un écran d'affichage à diodes électroluminescentes (del) Ceased WO2015192425A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201420323580.3 2014-06-18
CN201420323580 2014-06-18

Publications (1)

Publication Number Publication Date
WO2015192425A1 true WO2015192425A1 (fr) 2015-12-23

Family

ID=54934739

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2014/082297 Ceased WO2015192425A1 (fr) 2014-06-18 2014-07-16 Carte de circuit imprimé qui peut dissiper la chaleur à partir de deux côtés pour un écran d'affichage à diodes électroluminescentes (del)

Country Status (1)

Country Link
WO (1) WO2015192425A1 (fr)

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 (fr) * 2018-02-12 2020-12-23 Signify Holding B.V. Agencement d'éclairage comprenant un substrat pour éléments électroluminescents

Similar Documents

Publication Publication Date Title
CN201110527Y (zh) 一种大功率led光源器
CN201680319U (zh) 一种led灯石墨导热散热装置
CN202719394U (zh) 陶瓷座led照明灯
WO2015192423A1 (fr) Boîte de lampe d'écran d'affichage à del avec dissipation de chaleur étanche à l'eau
WO2015192425A1 (fr) Carte de circuit imprimé qui peut dissiper la chaleur à partir de deux côtés pour un écran d'affichage à diodes électroluminescentes (del)
CN103050607B (zh) Led散热基板
CN204665201U (zh) 一种用于led灯具的温差发电散热器
CN103115343B (zh) 一种灯具散热器及led工矿灯
CN205331842U (zh) 一种具有散热功能的led灯条
CN205746080U (zh) Led灯具
CN203910192U (zh) 适用于大屏幕led显示屏的散热装置
CN207648562U (zh) 灯具及光源模组
CN103148366A (zh) 一种改进的大功率led灯具
CN203036431U (zh) 高效散热的超薄led投光灯
CN204717443U (zh) 一种新型高散热柔光led灯
CN204199583U (zh) 一种发光瓷砖
CN202382070U (zh) 一种ｌｅｄ灯
TWI375772B (fr)
CN202691961U (zh) Led灯泡的导热基板结构
CN205065523U (zh) 一种led路灯
CN203517398U (zh) 一种具有良好热传导的低位led灯具
CN206904931U (zh) 一种应用于led灯的散热器
CN203823704U (zh) Led散热模块
CN203489222U (zh) 灯具及其散热结构
CN102252189B (zh) 一种室内led照明灯

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14895074

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC , EPO FORM 1205A DATED 25.04.2017

122 Ep: pct application non-entry in european phase

Ref document number: 14895074

Country of ref document: EP

Kind code of ref document: A1