CN102080816A - Heat dissipating device for side light type light emitting diode (LED) backlight module, backlight module and television - Google Patents
Heat dissipating device for side light type light emitting diode (LED) backlight module, backlight module and television Download PDFInfo
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- CN102080816A CN102080816A CN2010105342581A CN201010534258A CN102080816A CN 102080816 A CN102080816 A CN 102080816A CN 2010105342581 A CN2010105342581 A CN 2010105342581A CN 201010534258 A CN201010534258 A CN 201010534258A CN 102080816 A CN102080816 A CN 102080816A
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- rear frame
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Abstract
The invention discloses a heat dissipating device for a side light type light emitting diode (LED) backlight module. The heat dissipating device comprises an iron rear frame (1) and a heat dissipating aluminum rod (2), wherein the heat dissipating aluminum rod (2) is arranged inside the iron rear frame; heat dissipating holes (4) are formed on both sides of the iron rear frame (1); the heat dissipating holes correspond to the heat dissipating aluminum rod (2); a boss of a heat dissipating component (3) is attached to the heat dissipating aluminum rod (2) inside the iron rear frame through the heat dissipating holes (4) of the iron rear frame; and panel parts, which are connected with the boss, on the heat dissipating component (3) are positioned outside the iron rear frame (1). Compared with a pure iron rear frame structure, the heat dissipating device has the advantages that the temperature of an LED lamp bar is reduced by 15 to 20 DEG C and is close to or reaches the heat dissipating level of an aluminum rear frame basically after the heat dissipating is used; and compared with a pure aluminum rear frame, the heat dissipating device has the characteristics of lowering the cost to a great extent and lowering the cost by more than 30 Yuan/set by taking a 42' television as an example. The invention also discloses the LED backlight module comprising the heat dissipating device and a television comprising the LED backlight module.
Description
Technical field
The present invention relates to the LED-backlit module, relate in particular to a kind of heat abstractor of the side light type LED back light module of television set, module backlight, television set of being used for.
Background technology
At present, side-light type LED has become the main flow of LED-backlit module.Along with the lifting of LED efficient, and in order to reduce packaging cost, the continuous increase of single LEDs power, each required LED number backlight constantly reduces.The problem of bringing thus is, because LED concentrates on the one or both sides of backboard, the pressure of heat radiation obviously increases, and traditional iron back of the body frame can't be competent at.Thus, all big enterprises use aluminium as back of the body frame material, in the hope of reaching better radiating effect mostly.Yet well-known, the cost of aluminium back of the body frame is carried on the back frame apparently higher than iron, and also carries on the back frame not as iron on intensity.In order to increase back of the body frame intensity, the thickness of aluminium back of the body frame is greater than a lot of times of iron back of the body frame thickness usually, and volume increases.
Therefore, heat radiation back of the body frame can't adapt to the needs of current great power LED in the existing LED-backlit module, has become LED-backlit module production industry problem demanding prompt solution.
Summary of the invention
The present invention is in order to solve the technical problem that the back of the body frame that dispels the heat in the existing LED-backlit module can't adapt to the needs of current great power LED, a kind of iron material of still using is proposed as back of the body frame material, be equipped with special radiator structure, reach the heat abstractor of carrying on the back the side light type LED back light module of the identical radiating effect of frame with aluminium.Adopt this heat abstractor, can reach the order ground of saving material, reducing cost.
The heat abstractor of the side light type LED back light module that the present invention proposes, it comprises iron back of the body frame, is located at the heat radiation aluminum strip of this iron back of the body frame inboard.Described iron back of the body frame dual-side all has louvre, the corresponding described heat radiation aluminum strip of this louvre, the boss of one thermal component is fitted by the louvre of iron back of the body frame and the heat radiation aluminum strip of iron back of the body frame inboard, and the plate part of this boss of connection all is positioned at the outside that iron is carried on the back frame on the thermal component.
More excellent, the outer surface of the flat board of described thermal component is provided with radiating fin or is arranged to concavo-convex.
Wherein, described thermal component can be the applying of mechanical system with the applying of heat radiation aluminum strip, also can be for chemical mode bonding.
Described thermal component can be made or be made by the material of other perfect heat-dissipatings by aluminium alloy.
The diameter of described louvre is less than or equal to described heat radiation aluminum strip and iron back of the body frame contact portion size.
The present invention also proposes a kind of television set that comprises the LED-backlit module of described heat abstractor and comprise described LED-backlit module.
The present invention is by the particular design to the radiator structure of LED-backlit module, the radiating effect that makes iron back of the body frame near or reach the effect of aluminium back of the body frame, reduce cost the purpose of gaining in strength thereby reach.This invention and pure iron back of the body mount structure is compared, use this radiator structure after, the temperature of LED lamp bar descends 15～20 degrees centigrade, basic near or reach the heat radiation level of aluminium back of the body frame; Compare with fine aluminium back of the body mount structure, can significantly reduce cost.With 42 " be example, can reduce cost above 30 yuan/platform of RMB.
Description of drawings
The present invention is described further below in conjunction with drawings and Examples, wherein:
Fig. 1 is the cutaway view of existing LED-backlit module radiator structure;
Fig. 2 is the cutaway view of preferred embodiment of the present invention;
Fig. 3 is the cutaway view of the made side light type LED back light module of utilization the present invention.
The specific embodiment
As shown in Figure 1, the heat abstractor of traditional LED-backlit module is made of back of the body frame 1 and the heat radiation aluminum strip 2 of being located at back of the body frame inboard.The heat that LED sends in the module backlight conducts by the heat radiation aluminum strip and carries on the back on the frame again to aerial heat radiation.This structure is difficult to adapt to the demand of great power LED cooling.
As shown in Figure 2, the heat abstractor of the side light type LED back light module that the present invention proposes, it comprises iron back of the body frame 1, is located at the heat radiation aluminum strip 2 of this iron back of the body frame inboard.And iron back of the body frame 1 dual-side all has louvre 4, and the corresponding heat radiation of this louvre aluminum strip 2, the diameter of louvre 4 are less than or equal to described heat radiation aluminum strip 2 and iron back of the body frame 1 contact portion size.The boss of one thermal component 3 is carried on the back the louvre 4 of frame and is fitted with the heat radiation aluminum strip 2 of iron back of the body frame inboard by iron, and the plate part of this boss of connection all is positioned at the outside that iron is carried on the back frame 1 on the thermal component 3.Present embodiment, thermal component 3 are made by aluminium alloy, also can be made by the material of other perfect heat-dissipatings as required.The mechanical system that fits into of the thermal component 3 and the aluminum strip 2 that dispels the heat, as, the screw ways of connecting is fitted, and perhaps adopts the mode of this chemical adhesion.The outer surface of the flat board of thermal component 3 is provided with radiating fin 9, also the outer surface of the flat board of thermal component 3 can be arranged to concavo-convex, to increase area of dissipation.
The invention allows for a kind of side light type LED back light module of using above-mentioned heat abstractor, particularly can be used in the side light type LED back light module of television set.As shown in Figure 3, the side of LGP 7 is provided with LED 6, and this LED 6 is located on aluminium base PCB (MCPCB) the lamp bar 5, and a part of edge strip of heat radiation aluminum strip 2 contacts with aluminium base lamp bar 5 and the interior side contacts of another part and iron back of the body frame 1.The heat that the thermal source LED 6 of module backlight is produced when luminous is transmitted on the heat radiation aluminum strip 2 through aluminium base lamp bar 5.By the louvre of opening on the iron backboard 14, the heat on the heat radiation aluminum strip 2 is transmitted on the thermal component 3.Simultaneously, the inboard of the flat board of thermal component 3 can be carried on the back frame 1 with iron and be left certain clearance.Final heat distributes fast in the air.This side light type LED back light module can also be used for television set.
The present invention by the mode of punching, obtains and the outside chance that contacts of back of the body frame inboard heat radiation aluminum strip under the prerequisite that guarantees back of the body frame mechanical strength.And then, be directly transferred to the outside backlight, thereby play better heat radiating effect by the temperature of thermal component with inboard backlight.Compared with prior art, the present invention not only according to seat back frame conduct heat radiation medium itself, has increased the main means of thermal component as heat radiation.Thereby make back of the body frame from the selection of material, only need to consider intensity, and can the lower iron back of the body frame of alternative costs.Because thermal component does not need to consider problems of mechanical strength, can select thermal diffusivity material preferably for use, thereby obtain best radiating effect.In addition, because the area of heat sink material is much smaller than the area of back of the body frame, so the present invention has tangible cost advantage than traditional aluminium back of the body frame scheme.
The above embodiment mainly is for creating conception of the present invention is described; should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise; can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (7)
1. the heat abstractor of a side light type LED back light module, comprise iron back of the body frame (1), be located at the heat radiation aluminum strip (2) that this iron is carried on the back the frame inboard, it is characterized in that, described iron back of the body frame (1) dual-side all has louvre (4), the corresponding described heat radiation aluminum strip (2) of this louvre, the boss of one thermal component (3) is fitted with the heat radiation aluminum strip (2) of iron back of the body frame inboard by the louvre (4) of iron back of the body frame, and thermal component (3) is gone up the outside that the plate part that connects this boss all is positioned at iron back of the body frame (1).
2. heat abstractor as claimed in claim 1 is characterized in that, the outer surface of the flat board of described thermal component (3) is provided with the dull and stereotyped outer surface of radiating fin (9) or thermal component (3) and is arranged to concavo-convex.
3. heat abstractor as claimed in claim 2 is characterized in that, the applying that fits into mechanical system or chemical mode bonding of described thermal component (3) and heat radiation aluminum strip (2).
4. heat abstractor as claimed in claim 3 is characterized in that, described thermal component (3) is made by aluminium alloy.
5. heat abstractor as claimed in claim 4 is characterized in that, the diameter of described louvre (4) is less than or equal to described heat radiation aluminum strip (2) and iron back of the body frame (1) contact portion size.
6. LED-backlit module that comprises each described heat abstractor of claim 1 to 5.
7. television set that comprises the described LED-backlit module of claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010534258.1A CN102080816B (en) | 2010-11-05 | 2010-11-05 | Heat dissipating device for side light type light emitting diode (LED) backlight module, backlight module and television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010534258.1A CN102080816B (en) | 2010-11-05 | 2010-11-05 | Heat dissipating device for side light type light emitting diode (LED) backlight module, backlight module and television |
Publications (2)
| Publication Number | Publication Date |
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| CN102080816A true CN102080816A (en) | 2011-06-01 |
| CN102080816B CN102080816B (en) | 2015-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010534258.1A Expired - Fee Related CN102080816B (en) | 2010-11-05 | 2010-11-05 | Heat dissipating device for side light type light emitting diode (LED) backlight module, backlight module and television |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104868A (en) * | 2012-08-15 | 2013-05-15 | 青岛海信电器股份有限公司 | Light emitting diode (LED) backlight unit and electronic device |
| CN103472609A (en) * | 2013-08-23 | 2013-12-25 | 昆山龙腾光电有限公司 | Liquid crystal display |
| CN103557507A (en) * | 2013-10-31 | 2014-02-05 | 深圳市华星光电技术有限公司 | Heat conduction device, backlight module and liquid crystal display |
| CN104180223A (en) * | 2014-08-13 | 2014-12-03 | 朴明灿 | LED luminous plate |
| CN108337857A (en) * | 2018-02-01 | 2018-07-27 | 深圳创维－Rgb电子有限公司 | Fixed structure, fixing means and its television set of heat dissipation aluminum strip |
| CN109903688A (en) * | 2019-02-26 | 2019-06-18 | 太龙智显科技（深圳）有限公司 | Outdoor intelligent lamp rod screen and its LED box |
| CN111564431A (en) * | 2020-05-28 | 2020-08-21 | 马鞍山东毅新材料科技有限公司 | Side-light type light-emitting diode conducting module and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101004513A (en) * | 2006-01-20 | 2007-07-25 | 中强光电股份有限公司 | Backlight module |
| CN101078835A (en) * | 2007-06-26 | 2007-11-28 | 上海广电光电子有限公司 | LED backlight module group |
-
2010
- 2010-11-05 CN CN201010534258.1A patent/CN102080816B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101004513A (en) * | 2006-01-20 | 2007-07-25 | 中强光电股份有限公司 | Backlight module |
| CN101078835A (en) * | 2007-06-26 | 2007-11-28 | 上海广电光电子有限公司 | LED backlight module group |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104868A (en) * | 2012-08-15 | 2013-05-15 | 青岛海信电器股份有限公司 | Light emitting diode (LED) backlight unit and electronic device |
| CN103104868B (en) * | 2012-08-15 | 2015-09-09 | 贵阳海信电子有限公司 | A kind of LED-backlit module and electronic equipment |
| CN103472609A (en) * | 2013-08-23 | 2013-12-25 | 昆山龙腾光电有限公司 | Liquid crystal display |
| CN103472609B (en) * | 2013-08-23 | 2016-03-30 | 昆山龙腾光电有限公司 | Liquid crystal display |
| CN103557507A (en) * | 2013-10-31 | 2014-02-05 | 深圳市华星光电技术有限公司 | Heat conduction device, backlight module and liquid crystal display |
| CN104180223A (en) * | 2014-08-13 | 2014-12-03 | 朴明灿 | LED luminous plate |
| CN108337857A (en) * | 2018-02-01 | 2018-07-27 | 深圳创维－Rgb电子有限公司 | Fixed structure, fixing means and its television set of heat dissipation aluminum strip |
| CN108337857B (en) * | 2018-02-01 | 2020-04-07 | 深圳创维－Rgb电子有限公司 | Television receiver |
| CN109903688A (en) * | 2019-02-26 | 2019-06-18 | 太龙智显科技（深圳）有限公司 | Outdoor intelligent lamp rod screen and its LED box |
| CN111564431A (en) * | 2020-05-28 | 2020-08-21 | 马鞍山东毅新材料科技有限公司 | Side-light type light-emitting diode conducting module and preparation method thereof |
| CN111564431B (en) * | 2020-05-28 | 2021-08-06 | 马鞍山东毅新材料科技有限公司 | Side-light type light-emitting diode conducting module and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN102080816B (en) | 2015-03-04 |
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Granted publication date: 20150304 Termination date: 20171105 |