CN200993346Y - Backlight source radiating module for planar display device - Google Patents

Backlight source radiating module for planar display device Download PDF

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Publication number
CN200993346Y
CN200993346Y CNU200620159943XU CN200620159943U CN200993346Y CN 200993346 Y CN200993346 Y CN 200993346Y CN U200620159943X U CNU200620159943X U CN U200620159943XU CN 200620159943 U CN200620159943 U CN 200620159943U CN 200993346 Y CN200993346 Y CN 200993346Y
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CN
China
Prior art keywords
heat radiation
flat
panel screens
back light
cross flow
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Expired - Fee Related
Application number
CNU200620159943XU
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Chinese (zh)
Inventor
洪银树
刘德真
宫原雅晴
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Sunonwealth Electric Machine Industry Co Ltd
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Sunonwealth Electric Machine Industry Co Ltd
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Priority to CNU200620159943XU priority Critical patent/CN200993346Y/en
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Publication of CN200993346Y publication Critical patent/CN200993346Y/en
Anticipated expiration legal-status Critical
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Abstract

A heat radiation module for back-light source of a plane displayer comprises at least a heat radiation baseplate, at least a top cover and at least a transverse-flow fan. The heat radiation baseplate is provided with a plurality of heat radiation slots and a plurality of heat radiation fins, the heat radiation slots are arranged between the heat radiation fins. The top cover is located at top of the heat radiation fins. The transverse-flow fan is located at least at one end of the heat radiation slots. By the transverse-flow fan, the heat radiation air will flow from the opening at one end of the heat radiation slots into the heat radiation slots, and discharge from the opening at another end of the heat radiation slots.

Description

The back light heat radiation module of flat-panel screens
Technical field
The utility model relates to a kind of back light heat radiation module of flat-panel screens, particularly relate to and a kind ofly impel a radiating airflow to discharge, and then promote the back light heat radiation module of the flat-panel screens of radiating effect by the other end that an end of this heat radiation conduit enters to this heat radiation conduit by at least one cross flow fan.
Background technology
The back light heat radiation module of existing flat-panel screens please refer to shown in Figure 1ly, and it comprises a source plate 91 backlight, a heat-radiating substrate 92, at least two radiating fins 93 and several blower fans 94.One side of this source plate 91 backlight is arranged and is provided with several light emitting diodes (LED does not illustrate), and this source plate 91 backlight is in order to be incorporated into the back side of a flat-panel screens 90 (flat panel display), so that backlight to be provided.This heat-radiating substrate 92 is made by heat conduction preferred metal such as aluminium or copper, and is embedded with a circulation line 920, and these circulation line 920 contents are provided with a cooling fluid (coolant).One side of this heat-radiating substrate 92 is in order to be incorporated into the opposite side of this source plate 91 backlight, so that absorb the heat energy that this light emitting diode produces by metal material own and cooling fluid.Simultaneously, this at least two radiating fin 93 be located at respectively this heat-radiating substrate 92 about two ends, these radiating fin 93 each horizontally sets several the heat radiation conduits 930.This at least two blower fan 94 is fixedly arranged on respectively on this two radiating fin 93 at least, and this blower fan 94 respectively is provided with an impeller 940, and it is used to drive heat radiation conduit 930 lateral flow of air-flow along this radiating fin 93.
Referring again to shown in Figure 1, when the light emitting diode of this source plate 91 backlight produces white light for these flat-panel screens 90 formation images, the heat energy that this light emitting diode produces is absorbed by the metal material of this heat-radiating substrate 92 earlier, then transfer again to carry heat energy, that is carry out the liquid cooling heat radiation by the cooling fluid of this circulation line 920.When the cooling fluid that has heat energy when this circulation line 920 arrives these radiating fins 93, then carry out the air cooling heat radiation via this blower fan 94.The principle that this cooling fluid utilizes long-pending density on expansion step-down of liquid heater and liquid cools volume-diminished density to uprise makes relatively heat and colder cooling fluid active cycle convection current in this circulation line 920 relatively.
Generally speaking, the back light heat radiation module of above-mentioned existing flat-panel screens has following shortcoming, for example: this blower fan 94 only is arranged at two ends of this radiating fin 93, so that can't effectively disperse the hot gas of the heat radiation conduit 930 that is positioned at these radiating fin 93 central parts, thereby cause this radiating fin 93 about the radiating effect of two ends and central part inconsistent, the radiating effect of this central part is obviously more low and have higher overheating fault probability relatively.In addition, though in the existing back light heat radiation module this several blower fans 94 are set, the air outlet of this blower fan 94 (indicating) can't be fully to should radiating groove road 930, and can't effectively expel hot gas in these all heat radiation conduits 930, it is inhomogeneous to cause dispelling the heat.In addition, the quantity that is provided with of this blower fan 94 too much is easy to generate excessive running noise, and cost is increased.
The utility model content
Main purpose of the present utility model provide a kind of flat-panel screens back light heat radiation module, its surface at least one heat-radiating substrate forms several radiating fins and heat radiation conduit, and at least one end corresponding to this heat radiation conduit is provided with at least one cross flow fan, the utlity model has the effect that promotes radiating efficiency and reduce noise to impel a radiating airflow to discharge by this cross flow fan, to make from the other end that an end of this heat radiation conduit is directed into this heat radiation conduit.
Secondary objective of the present utility model provides a kind of back light heat radiation module of flat-panel screens, the top of its this radiating fin is provided with a top cover, it is used to prevent radiating airflow that this cross flow fan produces from the dissipation of the top of this heat radiation conduit, and making the utlity model has increases radiating efficiency and prolongation flat-panel screens service life.
For realizing above-mentioned utility model purpose, the utility model has adopted following technical scheme:
A kind of back light heat radiation module of flat-panel screens, it comprises at least one heat-radiating substrate, at least one top cover and at least one cross flow fan.This heat-radiating substrate is provided with several heat radiation conduit and several radiating fins, and this heat radiation conduit is formed between this radiating fin.This top cover is arranged at the top of this each radiating fin; This cross flow fan is arranged at least one end of this heat radiation conduit.Impel a radiating airflow to enter in this heat radiation conduit by this cross flow fan, and discharge from the other end opening of this heat radiation conduit from an end opening of this conduit that respectively dispels the heat.
A kind of back light heat radiation module of flat-panel screens, it comprises: at least one heat-radiating substrate, it is provided with several heat radiation conduit and several radiating fins, and this heat radiation conduit is formed between this radiating fin; And at least two cross flow fans, these cross flow fans are respectively equipped with an air intake vent and an air outlet, and the air outlet correspondence of this one of them cross flow fan is close to an end of this heat radiation conduit, the corresponding other end near this heat radiation conduit of the air intake vent of this another cross flow fan.
The utility model has improved the shortcoming of prior art, its surface at least one heat-radiating substrate forms several radiating fins and heat radiation conduit, and at least one cross flow fan is set corresponding to this heat radiation conduit 1 at least one end, when this radiating fin absorbs the heat energy of backlight module generation, this cross flow fan orders about a radiating airflow and is discharged by the other end that an end of this heat radiation conduit enters to this heat radiation conduit, to improve the radiating effect of this heat-radiating substrate.In addition, the top of this radiating fin is provided with a top cover, and it is used to prevent that this radiating airflow is from the dissipation of the top of this heat radiation conduit.The utility model can improve the radiating efficiency of heat-radiating substrate really and reduce the noise that produces when using, and then prolongs the service life of flat-panel screens.
Description of drawings
Fig. 1: the combination stereogram of the back light heat radiation module of existing flat-panel screens.
Fig. 2: the exploded perspective view of the back light heat radiation module of the flat-panel screens of the utility model first embodiment.
Fig. 3: the combination perspective and the side view of the back light heat radiation module of the flat-panel screens of the utility model first embodiment.
Fig. 4: the back light heat radiation module of the flat-panel screens of the utility model first embodiment is along the partial sectional view of 4-4 line.
Fig. 5: the back light heat radiation module of the flat-panel screens of the utility model first embodiment is along the broken section and the schematic diagram of 5-5 line.
Fig. 6: the combination solid and the perspective view of the back light heat radiation module of the flat-panel screens of the utility model second embodiment.
Fig. 7: the back light heat radiation module of the flat-panel screens of the utility model second embodiment is analysed and observe and schematic diagram along the combination of 7-7 line.
Fig. 8: the combination solid and the perspective view of the back light heat radiation module of the flat-panel screens of the utility model the 3rd embodiment.
Fig. 9: the back light heat radiation module of the flat-panel screens of the utility model the 3rd embodiment is analysed and observe and schematic diagram along the combination of 9-9 line.
[primary clustering symbol description]
1 backlight module, 4 top covers, 53 impellers
11 back light units, 4 ' top cover, 53 ' impeller
111 pedestals, 5 cross flow fans, 90 flat-panel screens
112 luminous original paper 5 ' cross flow fan 91 source plates backlight
12 circuit boards, 51 shell blocks, 92 heat-radiating substrates
2 support frames, 51 ' shell block, 920 circulation lines
21 first accommodation spaces, 511 wind, 93 radiating fins
22 second accommodation spaces, 511 ' air intake vent, 930 heat radiation conduits
3 heat-radiating substrates, 512 air outlets, 94 blower fans
31 heat radiation conduits, 512 ' air outlet, 940 impellers
310 top end openings, 52 power unit a flat-panel screens
32 radiating fins, 52 ' power unit
The specific embodiment
For above-mentioned and other purpose, feature and advantage of the present utility model can be become apparent, hereinafter special with the many preferred embodiments of the utility model, and in conjunction with the accompanying drawings, be described in detail below:
Please refer to Fig. 2 and shown in Figure 4, the backlight heat abstractor of the flat-panel screens of the utility model first embodiment preferably is used to be incorporated into a flat-panel screens a (flat panel display, FPD) the back side, this flat-panel screens a is preferably from LCD (liquid crystal display, LCD) or plasma display panel (plasma display panel, PDP) ... etc., so that light backlight is provided.
Please refer to Fig. 2 to shown in Figure 4, it comprises at least one backlight module 1, a support frame 2, at least one heat-radiating substrate 3, at least one top cover 4 and at least one cross flow fan 5 the backlight heat abstractor of the flat-panel screens of the utility model first embodiment.This backlight module 1 is located in this support frame 2, and this backlight module 1 closely is attached at the back side of this heat-radiating substrate 3, so that the heat energy that this backlight module 1 is produced looses by these heat-radiating substrate 3 rows of derivation.5 correspondences of this cross flow fan are arranged at the below of this heat-radiating substrate 3, to impel the heat energy on this heat-radiating substrate 3 diffusing to effluxing.
Referring again to shown in Fig. 2 to 4, the backlight module 1 of the utility model first embodiment has an at least one back light unit 11 and a circuit board 12, this back light unit 11 electrically connects with this circuit board 12, by the luminous action of these circuit board 12 these back light units 11 of control, so that a backlight to be provided.This back light unit 11 respectively is provided with a pedestal 111 and a luminescence component 112.This pedestal 111 is to be used for ccontaining this luminescence component 112, and preferably make from the metal or alloy material of the high capacity of heat transmission of a tool bottom of this pedestal 111, for example aluminium, copper, gold, silver or its alloy etc. are so that the thermal energy conduction that this luminescence component 112 is produced is to this heat-radiating substrate 3.
Referring again to Fig. 2 and shown in Figure 3, the support frame 2 of the utility model first embodiment has at least one first accommodation space 21 and at least one second accommodation space, and a side of this support frame 2 can be in order in conjunction with this heat-radiating substrate 3.More detailed theory, this support frame 2 is preferential select made by a high-termal conductivity metal or alloy, for example aluminium, copper, gold, silver or its alloy etc., but also can select to make (for example: plastics or foam etc.) by nonmetallic materials.21 pairs of this first accommodation spaces should backlight module 1 shape offer and be formed on this support frame 2, it is used to assemble ccontaining this backlight module 1.These second accommodation space, 22 selections are relatively arranged at least one side of the upside or the downside of this first accommodation space 21, and the vertical height of this second accommodation space 22 needs the vertical height greater than this cross flow fan 5, so that this cross flow fan 5 still maintains an admission space (indicating) when being located in this second accommodation space 22.
Referring again to Fig. 2 and shown in Figure 3, the heat-radiating substrate 3 of the utility model first embodiment is made by a high-termal conductivity metal or alloy, for example aluminium, copper, gold, silver or its alloy etc.The front of this heat-radiating substrate 3 is provided with several heat radiation conduit 31 and several radiating fins 32.This radiating fin 32 is to be the front that vertical arrangement is convexly set in this heat-radiating substrate 3 with respect to this cross flow fan 5, and forms this heat radiation conduit 31 between each two adjacent these radiating fin 32, and this heat radiation conduit 31 also is vertical arrangement setting with respect to this cross flow fan 5.Heat exchange area by this heat radiation conduit 31 and this heat-radiating substrate 3 of radiating fin 32 increases and air discharges the heat energy that this heat-radiating substrate 3 is absorbed to derive.This each top cover 4 selects to be integrally formed in the top of this radiating fin 32, with the opened gap of the top end opening 310 that dwindles this heat radiation conduit 31.
Referring again to Fig. 2 and shown in Figure 5, the cross flow fan 5 of the utility model first embodiment is provided with a shell block 51, at least one power unit 52 and an impeller 53, and this shell block 51 is used for ccontaining this power unit 52 and impeller 53.This power unit 52 is selected from a motor, and its setting is connected in an end of this impeller 53, rotates to drive this impeller 53.This shell block 51 has an air intake vent 511 and an air outlet 512, this air intake vent 511 is that correspondence is offered the admission space towards this second accommodation space 22, when this power unit 52 drives these impeller 53 rotations, ambient atmos is subjected to the driving of this impeller 53 and is guided via this air intake vent 511 and enters in this shell block 51, and discharges and form a radiating airflow from this air outlet 512.This air outlet 512 is corresponding end openings near these all heat radiation conduits 31, and this cross flow fan 5 is used to guide this radiating airflow and is entered by an end of this heat radiation conduit 31, and by the other end discharge of this heat radiation conduit 31.
Extremely shown in Figure 4 referring again to Fig. 2, when the backlight heat abstractor of the flat-panel screens of using the utility model first embodiment, luminescence component 112 emissions one backlight of this back light unit 11 forms image for this flat-panel screens a, and this luminescence component 112 also will produce a used heat simultaneously.Because the pedestal 111 of this back light unit 11 absorbs the heat energy of this used heat by heat exchange pattern, and because the bottom of this pedestal 111 is the materials that are selected from the high capacity of heat transmission, therefore can be fast directly with thermal energy conduction to this heat-radiating substrate 3, with the action of dispelling the heat.
Please refer to Fig. 2 to shown in Figure 5, after the heat-radiating substrate 3 of the utility model first embodiment absorbs the heat energy of this used heat, because this heat-radiating substrate 3 also is to be made by the material of the high capacity of heat transmission, and via radiating fin 32 these heat-radiating substrates 3 of increase of this heat-radiating substrate 3 and the heat exchange area between the ambient atmos, make this heat-radiating substrate 3 fast with the air of heat energy heat exchange to this heat radiation conduit 31, to reduce the temperature of this heat-radiating substrate 3.At this moment, constantly provide this radiating airflow to enter in this heat radiation conduit 31 by this cross flow fan 5 from an end opening of this heat radiation conduit 31, and then force heated gas in this heat radiation conduit 31 towards the other end opening discharging of this heat radiation conduit 31, to quicken the convection circulation of the interior gas of this heat radiation conduit 31.Further, 512 pairs of the air outlets of this cross flow fan 5 should all heat radiation conduits 31 an end opening, and do not need to be provided with in addition a plurality of heat emission fan (for example: blower fan etc.) and circulation line can keep good radiating efficiency, make the utility model can effectively reduce really and use noise and reduce manufacturing cost.
In addition, extremely shown in Figure 5 referring again to Fig. 2, because the top of this each radiating fin 32 is provided with this top cover 4, and then can prevent that this radiating airflow from leaving this heat radiation conduit 31 from the top end opening 310 of this heat radiation conduit 31, maintain suitable blast to keep in this heat radiation conduit 31, and it is diffusing towards the other end opening row of this heat radiation conduit 31 from an end opening of this heat radiation conduit 31 to be enough to drive this air-flow, make this heat radiation conduit 31 keep good convection circulation efficient, further promote the radiating efficiency of this heat-radiating substrate 3.Further, this heat radiation conduit 31 and radiating fin 32 preferentially are designed to relatively, and this cross flow fan 5 forms vertically arrangement, and this cross flow fan 5 also is relatively arranged on the below of this heat-radiating substrate 3, so that the convective principles that helps utilizing hot-air to rise produces thermal convection current, further improves radiating efficiency.
Please refer to Figure 6 and Figure 7, it discloses the backlight heat abstractor of the flat-panel screens of the utility model second embodiment.Compared to first embodiment, the heat radiation conduit 31 of second embodiment and radiating fin 32 are that heat radiation conduit 31 and the radiating fin 32 of relative first embodiment forms transversely arranged, and second accommodation space 22 of this support frame 2 selects to be arranged at least one side on the left side or the right side of this first accommodation space 21, make this cross flow fan 5 also relatively an end opening of this heat radiation conduit 31 be arranged at the left side or the right side of this heat-radiating substrate 3.In addition, these top cover 4 assemblnig tops that are installed in this radiating fin 32, and this top cover 4 relative proximities or connect a sidewall of the air outlet 512 of this cross flow fan 5, the top cover 4 of present embodiment is preferably extended to form by a sidewall one of these cross flow fan 5 air outlets 512, the radiating airflow that produces with this cross flow fan 5 of smooth guiding enters in this heat radiation conduit 31, and seal this top end opening 310, avoid this radiating airflow to leave this heat radiation conduit 31 from these top end opening 310 dissipations, guaranteeing that this radiating airflow discharged by the other end that an end of this heat radiation conduit 31 is directed into this heat radiation conduit 31, thereby improve radiating efficiency of the present utility model and assembling convenience.
Please refer to Fig. 8 and shown in Figure 9, it discloses the backlight heat abstractor of the flat-panel screens of the utility model the 3rd embodiment.Compared to first embodiment, two ends of the heat radiation conduit 31 of the 3rd embodiment are that correspondence is provided with a cross flow fan 5,5 ' respectively, air outlet 512 corresponding end openings of this cross flow fan 5 near this heat radiation conduit 31, the then corresponding other end opening of the air intake vent 511 ' of this another cross flow fan 5 ' towards this heat radiation conduit 31.In addition, present embodiment utilizes the back coverboard of this flat-panel screens a to form a top cover 4 ', and this top cover 4 ' leaves an appropriate gap with the top of this radiating fin 32, and the radiating airflow that this cross flow fan 5 of this top cover 4 ' guiding produces is directed into the other end discharge of this heat radiation conduit 31 by an end of this heat radiation conduit 31.
Referring again to Fig. 8 and shown in Figure 9, the cross flow fan 5 that dependence is positioned at these heat radiation conduit 31 1 ends provides this radiating airflow to enter this heat radiation conduit 31 from an end opening of this heat radiation conduit 31, and also will dispel the heat the simultaneously heated gas of conduit 31 of the cross flow fan 5 ' that is positioned at these heat radiation conduit 31 other ends sucks from the air intake vent 511 ' of this cross flow fan 5 ', and via the air outlet 512 ' row of this cross flow fan 5 ' from this heat radiation conduit 31, and then provide enough driving blast to force the heated gas in this heat radiation conduit 31 to be arranged from this heat radiation conduit 31 by an end to the other end of this heat radiation conduit 31, to quicken the convection circulation of the gas in this heat radiation conduit 31.Particularly when the total length of heat-radiating substrate 3 formed heat radiation conduits 31 of the present utility model is longer, still can effectively promote radiating efficiency.
In sum, though use a plurality of blower fans 94 with respect to the back light heat radiation module of the existing flat-panel screens of Fig. 1 but still fail all heat radiation conduits 930 of a corresponding radiating fin 93 fully, so that can't effectively disperse the hot gas of the heat radiation conduit 930 that is positioned at these radiating fin 93 central parts, thus cause this radiating fin 93 about the radiating effect of two ends and central part inconsistent.In addition, the number that is provided with of this blower fan 94 too much is easy to generate excessive running noise and increases shortcomings such as production cost relatively, the utility model of Fig. 2 forms this heat radiation conduit 31 and radiating fin 32 by the surface at this heat-radiating substrate 3, and corresponding to this heat radiation conduit 31 this at least one cross flow fan 5 of at least one end setting, when this radiating fin 32 absorbs the heat energy of this backlight module 1 generation, this cross flow fan 5 can impel a radiating airflow to be discharged by the other end that an end of this heat radiation conduit 31 is directed into this heat radiation conduit 31, to promote the radiating effect of this heat-radiating substrate 3.In addition, the top of this radiating fin 32 is provided with this top cover 4, can discharge from an end to the other end of this heat radiation conduit 31 of this conduit 31 that dispels the heat to guarantee this radiating airflow.Like this, the utility model can improve the radiating efficiency of flat-panel screens and reduce the noise that produces when using, and then prolongs the service life of flat-panel screens.

Claims (20)

1, a kind of back light heat radiation module of flat-panel screens is characterized in that, it comprises:
At least one heat-radiating substrate, its back side is provided with at least one backlight module, and the front of this heat-radiating substrate is provided with several heat radiation conduit and several radiating fins, and this heat radiation conduit is formed between this radiating fin;
At least one top cover, it is arranged at the top of this each radiating fin; And
At least one cross flow fan, it is arranged at least one end of this heat radiation conduit.
2, the back light heat radiation module of flat-panel screens according to claim 1 is characterized in that, this cross flow fan is provided with an air outlet, the corresponding end opening near this conduit that respectively dispels the heat of this air outlet.
3, the back light heat radiation module of flat-panel screens according to claim 1 is characterized in that, this cross flow fan is provided with an air intake vent, and this air intake vent correspondence is towards an end opening of this conduit that respectively dispels the heat.
4, the back light heat radiation module of flat-panel screens according to claim 1 is characterized in that, the integrally formed top that is arranged at this each radiating fin of this top cover.
5, the back light heat radiation module of flat-panel screens according to claim 1 is characterized in that, the assemblnig top that is arranged at this radiating fin of this top cover.
6, the back light heat radiation module of flat-panel screens according to claim 1 is characterized in that, this top cover is selected from the back coverboard of a flat-panel screens, and an appropriate gap is left on the top of this top cover and this radiating fin.
7, the back light heat radiation module of flat-panel screens according to claim 1, it is characterized in that, other is provided with a support frame, this support frame is provided with at least one first accommodation space and at least one second accommodation space, this first accommodation space is used to be installed with this backlight module, and this second accommodation space is used for ccontaining this cross flow fan.
8, the back light heat radiation module of flat-panel screens according to claim 7 is characterized in that, this second accommodation space is arranged at least one side on the left side and the right side of this first accommodation space.
9, the back light heat radiation module of flat-panel screens according to claim 7 is characterized in that, this second accommodation space is arranged at least one side of the upside and the downside of this first accommodation space.
10, the back light heat radiation module of flat-panel screens according to claim 1 is characterized in that, this cross flow fan is provided with at least one power unit and an impeller, and this power unit is arranged at an end of this impeller, rotates to drive this impeller.
11, a kind of back light heat radiation module of flat-panel screens is characterized in that, it comprises:
At least one heat-radiating substrate, it is provided with several heat radiation conduit and several radiating fins, and this heat radiation conduit is formed between this radiating fin; And
At least two cross flow fans, these cross flow fans are respectively equipped with an air intake vent and an air outlet, and the air outlet correspondence of this one of them cross flow fan is close to an end of this heat radiation conduit, the corresponding other end near this heat radiation conduit of the air intake vent of this another cross flow fan.
12, the back light heat radiation module of flat-panel screens according to claim 11 is characterized in that, other is provided with a top cover, the corresponding top that is arranged at this each radiating fin of this lid.
13, the back light heat radiation module of flat-panel screens according to claim 12 is characterized in that, the integrally formed top that is arranged at this each radiating fin of this top cover.
14, the back light heat radiation module of flat-panel screens according to claim 12 is characterized in that, the assemblnig top that is arranged at this each radiating fin of this top cover.
15, the back light heat radiation module of flat-panel screens according to claim 12 is characterized in that, this top cover is selected from the back coverboard of a flat-panel screens, and an appropriate gap is left on the top of this top cover and this radiating fin.
16, the back light heat radiation module of flat-panel screens according to claim 11 is characterized in that, other is provided with a support frame, and this heat-radiating substrate and cross flow fan correspondence are arranged at a side of this support frame.
17, the back light heat radiation module of flat-panel screens according to claim 16, it is characterized in that, this support frame is provided with at least one first accommodation space and at least one second accommodation space, this first accommodation space is in order to be installed with a backlight module, and this second accommodation space is in order to ccontaining this cross flow fan.
18, the back light heat radiation module of flat-panel screens according to claim 17 is characterized in that, this second accommodation space is arranged at least one side on the left side and the right side of this first accommodation space.
19, the back light heat radiation module of flat-panel screens according to claim 17 is characterized in that, this second accommodation space is arranged at least one side of the upside and the downside of this first accommodation space.
20, the back light heat radiation module of flat-panel screens according to claim 11, it is characterized in that, this cross flow fan is provided with at least one power unit and an impeller, and this power unit is arranged at an end of this impeller, rotates to drive this impeller by this power unit.
CNU200620159943XU 2006-11-28 2006-11-28 Backlight source radiating module for planar display device Expired - Fee Related CN200993346Y (en)

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Application Number Priority Date Filing Date Title
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101929616B (en) * 2009-06-25 2013-03-27 扬光绿能股份有限公司 Illumination system
CN108637987A (en) * 2018-04-27 2018-10-12 东莞市闻誉实业有限公司 Illuminate inspection rack
CN108662489A (en) * 2018-04-24 2018-10-16 东莞市闻誉实业有限公司 Circular luminaire
CN108870340A (en) * 2018-04-24 2018-11-23 东莞市闻誉实业有限公司 Radiator structure
CN108870166A (en) * 2018-04-25 2018-11-23 东莞市闻誉实业有限公司 Desk lamp

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101929616B (en) * 2009-06-25 2013-03-27 扬光绿能股份有限公司 Illumination system
CN108662489A (en) * 2018-04-24 2018-10-16 东莞市闻誉实业有限公司 Circular luminaire
CN108870340A (en) * 2018-04-24 2018-11-23 东莞市闻誉实业有限公司 Radiator structure
CN108662489B (en) * 2018-04-24 2020-10-23 东莞市闻誉实业有限公司 Circular lamp
CN108870166A (en) * 2018-04-25 2018-11-23 东莞市闻誉实业有限公司 Desk lamp
CN108637987A (en) * 2018-04-27 2018-10-12 东莞市闻誉实业有限公司 Illuminate inspection rack

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