CN202992919U - LED (light-emitting diode) fixing structure in backlight module and liquid crystal display with same - Google Patents
LED (light-emitting diode) fixing structure in backlight module and liquid crystal display with same Download PDFInfo
- Publication number
- CN202992919U CN202992919U CN2012207134997U CN201220713499U CN202992919U CN 202992919 U CN202992919 U CN 202992919U CN 2012207134997 U CN2012207134997 U CN 2012207134997U CN 201220713499 U CN201220713499 U CN 201220713499U CN 202992919 U CN202992919 U CN 202992919U
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- led
- block body
- radiating block
- backlight module
- lamp bar
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Abstract
The utility model discloses a LED (light-emitting diode) fixing structure in a backlight module and a liquid crystal display with the same. The LED fixing structure comprises a cooling block body (1), a snap button (2) and an LED light bar. The LED fixing structure is characterized in that a groove is reserved on the bottom surface of the L-shaped cooling block body (1), the LED light bar is embedded in the groove and fitted with the side wall of the cooling block body (1), and an upper end of the LED light bar is snapped to an upper end of the side wall of the cooling block body (1) through the snap button (2). Thermal resistance of heat-conducting double faced adhesive tapes is further reduced, and the temperature around the LED light bar is reduced, so that service life, luminance durability and luminance stability of the LED light bar are guaranteed; and no air is allowed to exist between a base plate and the cooling block body to avoid formation of air films between the base plate and the cooling block body, so that heat-conducting efficiency between the base plate and the cooling block body is improved.
Description
Technical field
The utility model relates to LED fixed structure and the liquid crystal display thereof in a kind of backlight module, belongs to the heat dissipation equipment preparation field.
Background technology
In recent years because of the LED advantageous characteristic, introduce gradually in LCD Technology, because the light efficiency of LED is lower, can produce a large amount of heats during work, if do not solve heat dissipation problem, can cause the decay of LED luminosity and the shortening in service life.
The LED industry is welded on aluminium base (MCPCB) in order to reach better radiating effect with LED array, and aluminium base is well doubly more a lot of than common PCB (PCB of FR4 material) radiating effect.Below aluminium base, designed the radiating block of strip.Stick bond plies between radiating block and lamp bar, and be screwed aluminium base and radiating block.In the surrounding heat accumulation area of backlight, stick the conducting strip of band protection mould.In order to reduce thermal resistance, add the heat conduction via hole on the LED pad.Like this, reduced the sectional area of pcb board perpendicular to direction of heat flow, thereby reduced the thermal resistance between top layer and bottom and strengthened the conduction of LED lamp heat.At last, rely on the cross-ventilation in television cabin that heat is dissipated.Adopt heat-conducting glue to stick together material as the centre between LED and radiating block, general industry adopts the heat-conducting glue of 0.2 ~ 0.5mm thickness to fix and to do the conduction of heat.Heat-conducting glue is one to have the elastomer of thickness, and as heat conducting medium, except heat conductivility own, thickness is for affect the big or small most critical factor of thermal resistance.Its weak point is: heat-conducting glue is generally the 0.2 ~ 0.5mm that fixes, and applies without ambient pressure and cause thermal resistance large, can not efficiently radiates heat.
The utility model content
The technical problem that invention will solve: the weak point in the background technology, overcome to adopt between radiating block and lamp bar merely and stick bond plies, and the prior art that is screwed aluminium LED substrate and radiating block heat radiation and the manufacture craft problem brought, the utility model provides LED fixed structure and the liquid crystal display thereof in a kind of backlight module, effectively reduce thermal resistance, improve the technique of producing, lowered production cost.
Technical scheme:
In order to realize above-mentioned purpose of design, primary structure of the present utility model is such, LED fixed structure in a kind of backlight module, comprise radiating block body, buckle and LED lamp bar, described radiating block body is the L shape and the bottom surface is provided with groove, LED lamp bar be embedded in groove with the radiating block body sidewall fit, the sidewall upper of LED lamp bar upper end and radiating block body is through the buckle clamping.Stick bond plies between the sidewall of described substrate and radiating block body, form the heat conduction glue-line.The sidewall that the bottom surface of radiating block body can arrange projection and radiating block body consists of groove.The purpose that arranges like this is: 1, the sidewall that is embedded in groove with the radiating block body of substrate lower end fits tightly, the upper end is through the sidewall upper clamping of buckle and radiating block body, after fixing bearing can continue and energetically to the bond plies pressure between the sidewall of substrate and radiating block body, thereby heat-conducting glue reduces thermal resistance, reduce LED lamp bar environment temperature, guarantee the lasting and stable of the long service life of LED lamp bar and LED lamp luminosity.2, stick bond plies between the sidewall of described substrate and radiating block body, heat-conducting glue makes between substrate and radiating block body and does not have air, prevents from forming air film between the two, can improve heat transfer efficiency between substrate and radiating block body.LED lamp bar comprises substrate and LED, and LED is set on real estate, and LED lamp bar is the hard lamp bar of LED flexible lamp strip or LED.
A kind of liquid crystal display comprises the LED fixed structure in backlight module.
Beneficial effect:
1, be by described radiating block body the sidewall that L shape and bottom surface be provided with projection and radiating block body and consist of groove, and LED lamp bar is embedded in groove and the sidewall of radiating block body fits tightly, the sidewall upper of LED lamp bar upper end and radiating block body is through the tight clamping of buckle, can further reduce the bond plies thermal resistance, reduce LED lamp bar environment temperature, guarantee the lasting and stable of service life of LED lamp bar and luminosity;
2, the while can make between substrate and radiating block body and not have air, and the heat conduction glue-line is set, and prevents from forming air film between the two, improves further heat transfer efficiency between substrate and radiating block body.
Description of drawings
Fig. 1 is the structural representation of the LED fixed structure in the radiating block body.
Fig. 2 is the structural representation of radiating block body.
Fig. 3 is the structural representation of LED lamp bar and substrate.
Fig. 4 is the buckle structure schematic diagram.
Fig. 5 is the structural representation of the LED fixed structure in the backlight module of embodiment 1.
In figure, 1 is radiating block body, the 2nd, buckle, the 3rd, substrate, the 4th, LED, the 5th, projection.
The specific embodiment
As shown in Figure 5, LED fixed structure in a kind of backlight module, comprise radiating block body 1, buckle 2 and LED lamp bar, described radiating block body 1 is on L shape and bottom surface and forms groove by compacting, namely be provided with groove on the bottom surface, LED lamp bar is embedded in groove and fits with the sidewall of radiating block body (1), and the sidewall upper of LED lamp bar upper end and radiating block body (1) is through buckle (2) clamping.LED lamp bar comprises substrate 3 and LED4, and the i.e. mark 4 in figure of LED4(is set on real estate).
With reference to Fig. 1-4, LED fixed structure in a kind of backlight module, comprise radiating block body 1, buckle 2, LED lamp bar, described radiating block body 1 is the L shape and the bottom surface is provided with projection, projection consists of groove with the sidewall of radiating block body 1, and LED lamp bar is embedded in groove and fits with the sidewall of radiating block body 1, LED lamp bar upper end and radiating block body 1 sidewall upper through buckle 2 clampings, LED lamp bar comprises substrate 3 and LED4, LED4 is set on real estate, LED lamp bar is the hard lamp bar of LED, and described substrate 3 is aluminium base laminate material.A kind of liquid crystal display comprises the LED fixed structure in above-mentioned backlight module.
Embodiment 3
LED fixed structure in backlight module, comprise radiating block body 1, buckle 2, LED lamp bar, described radiating block body 1 is the L shape and the bottom surface is provided with projection, projection consists of groove with the sidewall of radiating block body 1, and LED lamp bar is embedded in groove and fits with the sidewall of radiating block body 1, and the sidewall upper of LED lamp bar upper end and radiating block body 1 is through buckle 2 clampings.Stick bond plies between the shell wall of described substrate 3 and radiating block body 1, form the heat conduction glue-line.LED lamp bar comprises substrate 3 and LED4, and LED4 is set on real estate, and LED lamp bar is the hard lamp bar of LED, and described substrate 3 is ceramic structure laminate material aluminum.Bond plies is one to have the elastomer of thickness, and as heat conducting medium, except heat conductivility own, thickness is for affect the big or small most critical factor of thermal resistance.Can be learnt by test rules ASTM D5470: 1. under same test pressure, the bond plies enlarged in thickness, thermal resistance is larger; 2. under same thickness, the pressure that bond plies is subject to strengthens, and thermal resistance is less.The sidewall that substrate 3 lower ends are embedded in groove with radiating block body 1 in the utility model fits tightly, the upper end is through buckle 2 and the 1 upper end clamping of radiating block body, after fixing bearing can continue and energetically to the bond plies pressure between the sidewall of substrate 3 and radiating block body 1, thereby reduce the materials of heat-conducting glue, reduce the thickness of heat conduction glue-line, reach and reduce thermal resistance.A kind of liquid crystal display comprises the LED fixed structure in above-mentioned backlight module.
Embodiment 4
LED fixed structure in a kind of backlight module, comprise radiating block body 1, buckle 2, LED lamp bar, described radiating block body 1 is the L shape and the bottom surface is provided with projection 5, projection 5 consists of groove with the sidewall of radiating block body 1, and LED lamp bar is embedded in groove and fits with the sidewall of radiating block body 1, and the sidewall upper of LED lamp bar upper end and radiating block body 1 is through buckle 2 clampings.LED lamp bar comprises substrate 3 and LED4, on 3 of substrates, LED4 is set, and LED lamp bar is the LED flexible lamp strip, and substrate 3 is epoxy glass cloth laminated board.
A kind of liquid crystal display comprises the LED fixed structure in above-mentioned backlight module.
Claims (7)
1. the LED fixed structure in a backlight module, comprise radiating block body (1), buckle (2) and LED lamp bar, it is characterized in that: described radiating block body (1) is on L shape and bottom surface and is provided with groove, and LED lamp bar is embedded in groove and fits with the sidewall of radiating block body (1), and the sidewall upper of LED lamp bar upper end and radiating block body (1) is through buckle (2) clamping.
2. the LED fixed structure in backlight module according to claim 1, is characterized in that, radiating block body (1) is the L shape and the bottom surface is provided with projection (5), and projection (5) consists of groove with the sidewall of radiating block body (1).
3. the LED fixed structure in backlight module according to claim 1, is characterized in that, LED lamp bar comprise substrate (3) and LED(4) on substrate (3) face, LED(4 is set).
4. the LED fixed structure in backlight module according to claim 1, is characterized in that, LED lamp bar is the hard lamp bar of LED flexible lamp strip or LED.
5. the LED fixed structure in backlight module according to claim 3, is characterized in that: be provided with the heat conduction glue-line between described substrate (3) and radiating block body (1) sidewall.
6. the LED fixed structure in backlight module according to claim 5 is characterized in that: described substrate (3) is aluminium base, ceramic structure or epoxy glass cloth laminated board.
7. a liquid crystal display, is characterized in that: comprise as the LED fixed structure in the arbitrary described backlight module of claim 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207134997U CN202992919U (en) | 2012-12-21 | 2012-12-21 | LED (light-emitting diode) fixing structure in backlight module and liquid crystal display with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207134997U CN202992919U (en) | 2012-12-21 | 2012-12-21 | LED (light-emitting diode) fixing structure in backlight module and liquid crystal display with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202992919U true CN202992919U (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207134997U Expired - Fee Related CN202992919U (en) | 2012-12-21 | 2012-12-21 | LED (light-emitting diode) fixing structure in backlight module and liquid crystal display with same |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103162247A (en) * | 2013-03-11 | 2013-06-19 | 深圳市华星光电技术有限公司 | Light emitting diode (LED) light bar buckling structure of backlight module and liquid crystal display device comprising backlight module |
| CN104503135A (en) * | 2014-12-19 | 2015-04-08 | 青岛海信电器股份有限公司 | Light source component, display module and display device |
| CN105425466A (en) * | 2016-01-04 | 2016-03-23 | 北京京东方茶谷电子有限公司 | Light bar back glue, pressing plate, attaching jig, and attaching method |
| CN106574758A (en) * | 2014-08-25 | 2017-04-19 | 通用电气照明解决方案有限责任公司 | Smart luminaire |
| CN113203062A (en) * | 2021-05-20 | 2021-08-03 | 宁波公牛生活电器有限公司 | Lighting device and bathroom heater |
| CN113203054A (en) * | 2021-05-20 | 2021-08-03 | 宁波公牛生活电器有限公司 | Production process of lighting device |
-
2012
- 2012-12-21 CN CN2012207134997U patent/CN202992919U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103162247A (en) * | 2013-03-11 | 2013-06-19 | 深圳市华星光电技术有限公司 | Light emitting diode (LED) light bar buckling structure of backlight module and liquid crystal display device comprising backlight module |
| CN103162247B (en) * | 2013-03-11 | 2014-10-15 | 深圳市华星光电技术有限公司 | Light emitting diode (LED) light bar buckling structure of backlight module and liquid crystal display device comprising backlight module |
| CN106574758A (en) * | 2014-08-25 | 2017-04-19 | 通用电气照明解决方案有限责任公司 | Smart luminaire |
| CN104503135A (en) * | 2014-12-19 | 2015-04-08 | 青岛海信电器股份有限公司 | Light source component, display module and display device |
| CN105425466A (en) * | 2016-01-04 | 2016-03-23 | 北京京东方茶谷电子有限公司 | Light bar back glue, pressing plate, attaching jig, and attaching method |
| CN113203062A (en) * | 2021-05-20 | 2021-08-03 | 宁波公牛生活电器有限公司 | Lighting device and bathroom heater |
| CN113203054A (en) * | 2021-05-20 | 2021-08-03 | 宁波公牛生活电器有限公司 | Production process of lighting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20131221 |