CN105575271A - Heat dissipation method of outdoor LED display screen - Google Patents
Heat dissipation method of outdoor LED display screen Download PDFInfo
- Publication number
- CN105575271A CN105575271A CN201510954247.1A CN201510954247A CN105575271A CN 105575271 A CN105575271 A CN 105575271A CN 201510954247 A CN201510954247 A CN 201510954247A CN 105575271 A CN105575271 A CN 105575271A
- Authority
- CN
- China
- Prior art keywords
- heat dissipation
- heat
- display screen
- housing
- heat sink
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- 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
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20127—Natural convection
Abstract
The invention relates to a heat dissipation method of an outdoor LED display screen. The heat dissipation method comprises the following steps: mounting heat dissipation boards on the back of a PCB; mounting ventilating ducts extending towards the outside of a shell on the heat dissipation boards, wherein two ends of the ventilating ducts are communicated with each other respectively through holes in the heat dissipation board and the shell, and the outside air is communicated with the areas among the heat dissipation boards in the shell through the ventilating ducts; when the temperature of the PCB is excessively high, the heat dissipation boards dissipate heat towards the outside, and the heat dissipated from the shell is brought out through the outside air of the ventilating ducts. The structure is simple and practical, and the communicated ventilating ducts are arranged inside the display screen for communicating the spaces inside the display screen, so that the convection effect is enhanced, and the heat dissipation effect is good; and the device is energy-saving and environmentally friendly, and has wide applications.
Description
Technical field
The present invention relates to LED technology field, be specifically related to a kind of heat dissipating method of outdoor LED display screen.
Background technology
LED is the abbreviation of light emitting diode, is a kind of solid matter that can convert electrical energy into luminous energy, due to the advantage of its energy-conserving and environment-protective, replaces conventional light source just gradually at present, and the multiple fields in productive life are widely used.But current used outdoor LED display screen, can produce a large amount of heats after long-term work, these heat accumulations, in the display module of sealant pouring and sealing, cause amount of localized heat to gather, and the luminous intensity of LED chip and luminescent lifetime all can be decayed.Meanwhile, high temperature also can cause adverse effect to circuit board, causes the decline of display screen total quality, reduces its mission life and display effect.
Summary of the invention
The object of the present invention is to provide a kind of heat dissipating method of outdoor LED display screen, the method good heat dissipation effect, manufacturing cost are low and can the long service life of prolong display screen.
For achieving the above object, present invention employs following technical scheme:
A heat dissipating method for outdoor LED display screen, comprises the following steps: install heat sink at the back side of PCB; And the ventilating duct installed on heat sink to housing extension, the two ends of described ventilating duct by being separately positioned on the perforate mutual conduction on heat sink and housing, by ventilating duct by the regional connectivity in external air and housing between heat sink; When PCB stablize too high time, externally dispelled the heat by heat sink, by the outer gas stream of ventilating duct, the heat shed in housing taken out of simultaneously.
Further, the louvre be connected with heat sink is offered in the side of housing, air flows to the process of other side by this louvre from the side of this housing, and the heat produced in this housing is taken away and is dispersed in external environment condition by the air air-flow produced that flows.
As shown from the above technical solution, the heat dissipating method of outdoor LED display screen of the present invention, simple and practical, by arranging in display screen inside the ventilating duct run through, the space of display screen inside being interconnected, adds strong convection, good heat dissipation effect, and energy-conserving and environment-protective, of many uses.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described:
As shown in Figure 1, the heat dissipating method of the outdoor LED display screen of the present embodiment, this display screen comprises housing and the PCB 1 that is arranged in housing and driving power 2, the front of PCB 1 is provided with LED lamp bead 3, the back side of PCB 1 is provided with heat sink 4, heat sink 4 is provided with multiple ventilating duct 5 extended to housing week side, the two ends of ventilating duct 5 are by being separately positioned on the perforate mutual conduction on heat sink 4 and housing, driving power 2 is arranged on the middle part at heat sink 4 back side, the back side of heat sink 4 is also provided with the support column 6 along its lateral vertical to housing extension.This housing is made up of lampshade 71 and drain pan 72, and the sidewall of drain pan 72 is provided with the louvre 721 be connected with PCB 1.Ventilating duct 5 is arc, and ventilating duct 5 sidewall of this arc is also provided with multiple ventilating opening 51.
Above-described embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determines.
Claims (2)
1. a heat dissipating method for outdoor LED display screen, is characterized in that: install heat sink at the back side of PCB; And the ventilating duct installed on heat sink to housing extension, the two ends of described ventilating duct by being separately positioned on the perforate mutual conduction on heat sink and housing, by ventilating duct by the regional connectivity in external air and housing between heat sink; When PCB stablize too high time, externally dispelled the heat by heat sink, by the outer gas stream of ventilating duct, the heat shed in housing taken out of simultaneously.
2. the heat dissipating method of outdoor LED display screen according to claim 1, it is characterized in that: offer the louvre be connected with heat sink in the side of housing, air flows to the process of other side by this louvre from the side of this housing, and the heat produced in this housing is taken away and is dispersed in external environment condition by the air air-flow produced that flows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510954247.1A CN105575271A (en) | 2015-12-20 | 2015-12-20 | Heat dissipation method of outdoor LED display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510954247.1A CN105575271A (en) | 2015-12-20 | 2015-12-20 | Heat dissipation method of outdoor LED display screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105575271A true CN105575271A (en) | 2016-05-11 |
Family
ID=55885342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510954247.1A Pending CN105575271A (en) | 2015-12-20 | 2015-12-20 | Heat dissipation method of outdoor LED display screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105575271A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105976726A (en) * | 2016-06-24 | 2016-09-28 | 安庆市奥立德光电有限公司 | LED display screen facilitating cooling |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1239359A1 (en) * | 1999-06-11 | 2002-09-11 | Jiung-Jung Wang | The heat-radiator of a portable computer's cpu |
| CN102509520A (en) * | 2011-11-08 | 2012-06-20 | 吴小刚 | Ventilating and heat-radiating structure and heat-radiating method of LED (light-emitting diode) display screen |
| CN102661506A (en) * | 2012-04-28 | 2012-09-12 | 杨亚西 | Novel high-efficiency radiating light emitting diode (LED) lamp body |
| CN203217891U (en) * | 2013-04-02 | 2013-09-25 | 湖北爱商光电股份有限公司 | Outdoor LED (light-emitting diode) display screen with fine heat dissipation effect |
| CN203250495U (en) * | 2013-05-21 | 2013-10-23 | 陈亚兴 | Improved outdoor LED display screen |
| CN203465909U (en) * | 2013-09-09 | 2014-03-05 | 佛山市青松科技有限公司 | Outdoor LED display screen capable of dispelling wind and dissipating heat |
| CN204066062U (en) * | 2014-08-22 | 2014-12-31 | 海南瑞嘉三川数字信息技术有限公司 | A kind of outdoor electronic government affairs touch-screen of ventilation structure |
-
2015
- 2015-12-20 CN CN201510954247.1A patent/CN105575271A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1239359A1 (en) * | 1999-06-11 | 2002-09-11 | Jiung-Jung Wang | The heat-radiator of a portable computer's cpu |
| CN102509520A (en) * | 2011-11-08 | 2012-06-20 | 吴小刚 | Ventilating and heat-radiating structure and heat-radiating method of LED (light-emitting diode) display screen |
| CN102661506A (en) * | 2012-04-28 | 2012-09-12 | 杨亚西 | Novel high-efficiency radiating light emitting diode (LED) lamp body |
| CN203217891U (en) * | 2013-04-02 | 2013-09-25 | 湖北爱商光电股份有限公司 | Outdoor LED (light-emitting diode) display screen with fine heat dissipation effect |
| CN203250495U (en) * | 2013-05-21 | 2013-10-23 | 陈亚兴 | Improved outdoor LED display screen |
| CN203465909U (en) * | 2013-09-09 | 2014-03-05 | 佛山市青松科技有限公司 | Outdoor LED display screen capable of dispelling wind and dissipating heat |
| CN204066062U (en) * | 2014-08-22 | 2014-12-31 | 海南瑞嘉三川数字信息技术有限公司 | A kind of outdoor electronic government affairs touch-screen of ventilation structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105976726A (en) * | 2016-06-24 | 2016-09-28 | 安庆市奥立德光电有限公司 | LED display screen facilitating cooling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160511 |