CN204287676U - Backlight heat dissipation structure and display device - Google Patents
Backlight heat dissipation structure and display device Download PDFInfo
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- CN204287676U CN204287676U CN201420757715.7U CN201420757715U CN204287676U CN 204287676 U CN204287676 U CN 204287676U CN 201420757715 U CN201420757715 U CN 201420757715U CN 204287676 U CN204287676 U CN 204287676U
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- base plate
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- dissipation structure
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Abstract
The utility model discloses a kind of backlight heat dissipation structure, the light source comprising backboard and be connected with described backboard, described backboard comprises base plate and is connected with described base plate the connecting portion arranged, described connecting portion is provided with circuit layer, described light source is arranged on the circuit layer of described connecting portion, described base plate is provided with radiating tube, stores conductive fluid in described radiating tube, and the heat that light source produces by described radiating tube conducts to described base plate through described connecting portion.The invention also discloses a kind of display device.Backlight heat dissipation structure of the present utility model and display device, by arranging radiating tube in backboard inside, arrange circuit layer at the connecting portion of backboard simultaneously, can directly be bonded on circuit layer by light source, effectively improve backboard radiating efficiency.Backlight heat dissipation structure of the present utility model not only solves problem that display device frame scalds one's hand, serviceable life of extending light source also reduces backlight heat radiation cost.
Description
Technical field
The utility model relates to display device technical field, particularly relates to backlight heat dissipation structure and display device.
Background technology
LCD TV is ingredient indispensable in people's daily life now.Because the glass penetrance of high colour gamut high-definition liquid crystal TV is lower, and the light interaction exciting pipe and LED to send can cause optical energy loss, and this just needs the power improving backlight LED light could meet the highlighted requirement of high definition.
As depicted in figs. 1 and 2, LED 1 is normally sticked on roomy sheet material heating radiator 2 by bond plies by existing high colour gamut backlight heat radiation, then is fixed on backboard 3 by heating radiator 2.The heat of LED 1 is before this by PCB4 (Printed Circuit Board; Printed circuit board (PCB)) conduct to bond plies, then conduct to heating radiator 2, distribute finally by backboard 3.On the one hand, owing to being separated by PCB4, bond plies, heating radiator 2 and air layer between LED 1 and backboard 3, the thermal resistance of heat trnasfer is comparatively large, is not used in heat radiation; On the other hand, be provided with in the fixed support 5 of LED 1 both sides and excite pipe 6, excite pipe 6 to irradiate by high-strength light and produce light and a large amount of heats, further increase the temperature of LED 1, not only cause TV frame very hot, also seriously reduce the life-span of LED 1.
In sum, when LED power is larger, adopts aforementioned existing radiator structure to have LED 1 and occur the problems such as temperature is too high, heat radiation is difficult, the life-span is low.
Utility model content
Fundamental purpose of the present utility model is to provide a kind of backlight heat dissipation structure, is intended to solve high-power LED lamp and occurs that temperature is too high, it is difficult to dispel the heat, the life-span is low technical matters.
For achieving the above object, the utility model provides a kind of backlight heat dissipation structure, the light source comprising backboard and be connected with described backboard, described backboard comprises base plate and is connected with described base plate the connecting portion arranged, described connecting portion is provided with circuit layer, and described light source is arranged on the circuit layer of described connecting portion, and described base plate is provided with radiating tube, store conductive fluid in described radiating tube, the heat that light source produces by described radiating tube conducts to described base plate through described connecting portion.
Preferably, described base plate interior is provided with interlayer, and described interlayer has the pipeline of hollow, and described pipeline forms described radiating tube.
Preferably, described base plate is formed by two pieces of aluminium sheet high-temperature laminatings, and described radiating tube is formed through inflation technology by described base plate.
Preferably, described radiating tube comprises the longitudinal pipe and transverse pipe that interconnect, and for injecting the inlet of described conductive fluid.
Preferably, described connecting portion is formed from a side edge bending of described base plate, and described connecting portion is parallel to described transverse pipe.
Preferably, the contiguous described connecting portion of described transverse pipe is arranged, and described longitudinal pipe extends to the middle part of base plate from transverse pipe.
Preferably, described light source is LED lamp bar, and described circuit layer is circuit board, and described lamp bar is bonding with described circuit board.
Preferably, described connecting portion is also provided with the support be connected with described circuit layer, and one end that described support deviates from described circuit layer is connected with and excites pipe, described in excite pipe just to arrange described light source.
Preferably, described support is provided with the limiting stand for exciting pipe described in fixing, described in excite pipe and described light source spaced apart by described limiting stand.
In addition, for achieving the above object, the utility model also provides a kind of display device, described display device comprises backlight heat dissipation structure, described backlight heat dissipation structure comprises backboard and is provided with connecting portion and radiating tube with described backboard, described connecting portion is connected with described light source, stores conductive fluid in described radiating tube, and described radiating tube is used for the heat conduction of described connecting portion to other regions of described backboard.
Backlight heat dissipation structure of the present utility model and display device, by arranging radiating tube in backboard inside, effectively improve area of dissipation and the radiating rate of backboard.Meanwhile, circuit layer is set by the connecting portion at backboard, can directly by bonding for lamp bar with on circuit layer, thus reduce the thermal resistance value that lamp bar heat conducts to backboard, further improving heat radiation efficiency.Radiator structure of the present utility model, not only solves the problem that display device frame scalds one's hand, the serviceable life extending light source, also reduces backlight heat radiation cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of backlight heat dissipation structure in prior art;
Fig. 2 is the enlarged diagram of a-quadrant in Fig. 1;
Fig. 3 is the structural representation of the utility model backlight heat dissipation structure one embodiment;
Fig. 4 is the partial structurtes schematic diagram of backlight heat dissipation structure in Fig. 3;
Fig. 5 is the enlarged diagram in B region in Fig. 4;
Fig. 6 is the structural representation of the utility model backlight heat dissipation structure one embodiment dorsulum;
Fig. 7 is the enlarged diagram in C region in Fig. 6.
The realization of the utility model object, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
It should be noted that, in description of the present utility model, term " on ", D score, "front", "rear", " top ", " end ", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, it is not the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
Please refer to the structural representation that Fig. 1 to Fig. 7: Fig. 1 is backlight heat dissipation structure in prior art; Fig. 2 is the enlarged diagram of a-quadrant in Fig. 1; Fig. 3 is the structural representation of the utility model backlight heat dissipation structure one embodiment; Fig. 4 is the partial structurtes schematic diagram of backlight heat dissipation structure in Fig. 3; Fig. 5 is the enlarged diagram in B region in Fig. 4; Fig. 6 is the structural representation of the utility model backlight heat dissipation structure one embodiment dorsulum; Fig. 7 is the enlarged diagram in C region in Fig. 6.
The utility model provides a kind of backlight heat dissipation structure, in one embodiment, the light source 130 that this backlight heat dissipation structure comprises backboard 200 and is connected with described backboard 200, described backboard comprises base plate 100 and is connected with described base plate 100 connecting portion 120 arranged, described connecting portion 120 is provided with circuit layer 121, described light source is arranged on the circuit layer 121 of described connecting portion 120, described base plate 100 is provided with radiating tube, store conductive fluid in described radiating tube, the heat that light source produces by described radiating tube conducts to described base plate 100 through described connecting portion 120.
With reference to Fig. 3, in the present embodiment, backlight heat dissipation structure comprises backboard 200 and light source 130, and backboard 200 comprises base plate 100 and connecting portion 120, and wherein light source 130 is installed on the circuit layer 121 of connecting portion 120.In prior art, light source 130 needs elder generation to be connected with heat sink, and heat sink is connected with backboard 200 again, which not only adds the thickness of display device, and is not easy to the circuit distribution of light source 130.In the present embodiment, circuit layer 121 is directly set at connecting portion 120, light source 130 is directly connected with circuit layer 121, not only make space layout more reasonable, and be convenient to the circuit distribution of light source 130, cost-saving further.Preferably, light source 130 is set to LED lamp bar, and circuit layer 121 is set to circuit board, is adhered to by lamp bar on circuit board and realizes being electrically connected, and above-mentioned setting can so that produce and assembling.
Base plate 100 in backboard is connected with connecting portion, arranges radiating tube 110 at base plate 100 near the place of light source 130 and connecting portion 120.Store conductive fluid in radiating tube 110, this conductive fluid is the highly pressurised liquid with heat conduction function, and such radiating tube 110 is just equivalent to hot tube heat exchanger, has efficient heat dispersion, can by the heat conduction of connecting portion 120 to base plate 100.When light source 130 works, the connecting portion 120 of backboard 200 is heated, and the conductive fluid in radiating tube 110 is gasificated into bubble and heat is quickly diffused to base plate 100, and at the less uniform temperature zone of base plate 100 formation temperature gradient.Radiating tube 110 in the utility model, compared with sheet material heating radiator of the prior art, decreases the thickness of backlight assembly on the one hand; Substantially increase area of dissipation and the radiating rate of backboard 200 on the other hand, thus effectively reduce the temperature of light source 130 and display device frame, improve the life-span of light source 130.
At the utility model in a certain or all embodiments, described base plate 100 inside is provided with interlayer, and described interlayer has the pipeline of hollow, and described pipeline forms radiating tube 110.
Particularly, radiating tube 110 can be arranged on inside surface or the outside surface of base plate 100; Also can in base plate 100 sandwich establishment, radiating tube 110 is installed in interlayer.Radiating tube 110 and backboard 200 can be fixed by any connected modes meeting intensity such as bonding, clampings, do not limit at this.
At the utility model in a certain or all embodiments, described base plate 100 is formed by two pieces of aluminium sheet high-temperature laminatings, and described radiating tube 110 is formed through inflation technology by described base plate 100.Described radiating tube 110 comprises the longitudinal pipe 111 and transverse pipe 112 that interconnect, and for the inlet 113 of filling heat-conductive liquid.
Particularly, radiating tube 110 can be fit into by hot tube heat exchanger in the interlayer of base plate 100, also can be formed by inflation technology, and the heating radiator wherein formed by inflation technology can be cost-saving further.In the present embodiment, base plate 100 is formed by high-temperature laminating by two blocks of aluminium sheets, first one block of aluminium sheet wherein prints off pipe-line layout figure by the method for printing, is then pressed into by two blocks of aluminium sheets and is integrated.Wherein, pipeline is provided with the pipeline of the horizontal and vertical both direction interconnected, and is reserved with inlet 113.Because backboard 200 is provided with mounting structure, radiating tube 110 is distributed in the both sides of mounting structure, and conveniently filling heat-conductive liquid is so arrange and be equipped with inlet 113 respectively on the radiating tube 110 of two groups, left and right.By utilizing inflation technology by the transverse pipe 112 of originally printing and longitudinal pipe 111 inflation at the inlet 113 of the left and right sides, form built-in heat exchanger tube.Then, be injected into a certain amount of highly pressurised liquid (i.e. conductive fluid) by inlet 113, finally close inlet 113, so far radiating tube 110 has manufactured.When light source 130 works, connecting portion 120 is heated, conductive fluid in built-in radiating tube 110 is gasificated into minute bubbles and heat is quickly diffused to base plate 100, and at the less uniform temperature zone of base plate 100 formation temperature gradient, substantially increase the area of dissipation of backboard 200, reduce the temperature of light source 130 and display device frame, improve the life-span of light source 130 and solve the hot problem of frame.
At the utility model in a certain or all embodiments, described connecting portion 120 is formed from a side edge bending of described base plate 100, and described connecting portion 120 is parallel to described transverse pipe.The contiguous described connecting portion 120 of described transverse pipe 112 is arranged, and described longitudinal pipe 111 extends to the middle part of base plate 100 from transverse pipe.
With reference to figure 4, particularly, the bottom of base plate 100 bends inwards and forms connecting portion 120, and light source 130 is installed on connecting portion 120.Radiating tube 110 can be arranged on the optional position of backboard 200, in order to improve radiating effect further, is preferably set to by radiating tube 110 extend to top bottom base plate 100.Such radiating tube 110 heat produced that can be worked by light source 130 is fast passed to other regions of backboard 200 from backboard 200 side backlight module.Wherein, radiating tube 110 can be set to straight tube, also can be set to the curved tube with bending.
With reference to figure 3, radiating tube 110 is divided into longitudinal pipe 111 and transverse pipe 112, and wherein longitudinal pipe 111 is set to short tube, and transverse pipe 112 is set to long tube.Longer transverse pipe 112 is arranged between much shorter longitudinal pipes 111 and light source 130 and transverse pipe 112 and light source 130 be arranged in parallel.Because be also calorie source when light source 130 works, so the position that to be heats the most concentrated of the connecting portion 120 on backboard 200.Longer transverse pipe 112 is parallel to light source 130 arrange, and many longitudinal pipes 111 vertical with transverse pipe 112 are set, the most fast heat can upwards be diffused to whole base plate 100 from connecting portion like this, expand efficiently radiates heat area.
Further, described connecting portion 120 is also provided with the support 122 be connected with described circuit layer 121, and one end that described support 122 deviates from described circuit layer 121 is connected with and excites pipe 140, described in excite pipe 140 just to arrange described light source 130.Described support 122 is provided with the limiting stand 123 for exciting pipe 140 described in fixing, described in excite pipe 140 and described light source 130 spaced apart by described limiting stand 123.
With reference to figure 4 and Fig. 5, the both sides of lamp bar are provided with support 122, be provided with and excite pipe 140 in the groove above support 122.In order to fixedly excite the position of pipe 140, so be provided with limiting stand 123 in the middle part of support 122, pipe 140 will be excited to be arranged on limiting stand 123.By arranging limiting stand 123 in the middle part of support 122, just can arrange exciting pipe 140 light source 130, and can by excite pipe 140 and light source 130 spaced apart.The optical effect that can maximize and excite pipe 140 and light source 130 is set like this, meets the highlighted requirement of high definition of display device further.
In the present embodiment, the number of support 122 is two, and the number of support 122 also can be one in other embodiments, and a support 122 also can achieve the above object while meeting requirement of strength, can also be cost-saving.Meanwhile, the position of support 122 also can be arranged arbitrarily, does not limit the both sides with light source 130, and wherein the size of limiting stand 123 and position also can be arranged according to the concrete condition of display device.
Certainly, limiting stand 123 also can be set to other equivalent form of values, such as arranges projection at the two ends of support 122, or offers stopper slot etc. form on support 122, therefore does not limit the concrete connection and limit method that excite pipe 140 at this.
The utility model also provides a kind of display device, and described display device comprises backlight heat dissipation structure, and this backlight heat dissipation structure can comprise technical schemes all in previous embodiment, and its detailed construction can refer to previous embodiment, does not repeat at this.
These are only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model instructions and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (10)
1. a backlight heat dissipation structure, the light source comprising backboard and be connected with described backboard, it is characterized in that, described backboard comprises base plate and is connected with described base plate the connecting portion arranged, described connecting portion is provided with circuit layer, and described light source is arranged on the circuit layer of described connecting portion, and described base plate is provided with radiating tube, store conductive fluid in described radiating tube, the heat that light source produces by described radiating tube conducts to described base plate through described connecting portion.
2. backlight heat dissipation structure as claimed in claim 1, it is characterized in that, described base plate interior is provided with interlayer, and described interlayer has the pipeline of hollow, and described pipeline forms described radiating tube.
3. backlight heat dissipation structure as claimed in claim 1, it is characterized in that, described base plate is formed by two pieces of aluminium sheet high-temperature laminatings, and described radiating tube is formed through inflation technology by described base plate.
4. backlight heat dissipation structure as claimed in claim 1, it is characterized in that, described radiating tube comprises the longitudinal pipe and transverse pipe that interconnect, and for injecting the inlet of described conductive fluid.
5. backlight heat dissipation structure as claimed in claim 4, is characterized in that, described connecting portion is formed from a side edge bending of described base plate, and described connecting portion is parallel to described transverse pipe.
6. backlight heat dissipation structure as claimed in claim 5, is characterized in that, the contiguous described connecting portion of described transverse pipe is arranged, and described longitudinal pipe extends to the middle part of base plate from transverse pipe.
7. backlight heat dissipation structure as claimed in claim 1, it is characterized in that, described light source is LED lamp bar, and described circuit layer is circuit board, and described lamp bar is bonding with described circuit board.
8. backlight heat dissipation structure as claimed in claim 1, is characterized in that, described connecting portion is also provided with the support be connected with described circuit layer, and one end that described support deviates from described circuit layer is connected with and excites pipe, described in excite pipe just to arrange described light source.
9. backlight heat dissipation structure as claimed in claim 8, is characterized in that, described support is provided with the limiting stand for exciting pipe described in fixing, described in excite pipe and described light source spaced apart by described limiting stand.
10. a display device, is characterized in that, described display device comprises the backlight heat dissipation structure as described in any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420757715.7U CN204287676U (en) | 2014-12-04 | 2014-12-04 | Backlight heat dissipation structure and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420757715.7U CN204287676U (en) | 2014-12-04 | 2014-12-04 | Backlight heat dissipation structure and display device |
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| Publication Number | Publication Date |
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| CN204287676U true CN204287676U (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420757715.7U Active CN204287676U (en) | 2014-12-04 | 2014-12-04 | Backlight heat dissipation structure and display device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504401A (en) * | 2017-08-22 | 2017-12-22 | 深圳创维－Rgb电子有限公司 | A kind of backlight module, display screen and display device |
| WO2018176679A1 (en) * | 2017-03-31 | 2018-10-04 | 京东方科技集团股份有限公司 | Backlight module |
| CN109541836A (en) * | 2019-01-28 | 2019-03-29 | 惠州市华星光电技术有限公司 | Back board structure and liquid crystal display device |
| CN109814296A (en) * | 2019-02-28 | 2019-05-28 | 深圳康佳电子科技有限公司 | A kind of blow-up plate type radiator piece and side entering type LCD TV |
| CN115774353A (en) * | 2021-09-06 | 2023-03-10 | 苏州佳世达电通有限公司 | Integrated liquid-cooled heat dissipation module, backlight module using same and display device |
-
2014
- 2014-12-04 CN CN201420757715.7U patent/CN204287676U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018176679A1 (en) * | 2017-03-31 | 2018-10-04 | 京东方科技集团股份有限公司 | Backlight module |
| CN107504401A (en) * | 2017-08-22 | 2017-12-22 | 深圳创维－Rgb电子有限公司 | A kind of backlight module, display screen and display device |
| CN109541836A (en) * | 2019-01-28 | 2019-03-29 | 惠州市华星光电技术有限公司 | Back board structure and liquid crystal display device |
| CN109814296A (en) * | 2019-02-28 | 2019-05-28 | 深圳康佳电子科技有限公司 | A kind of blow-up plate type radiator piece and side entering type LCD TV |
| CN115774353A (en) * | 2021-09-06 | 2023-03-10 | 苏州佳世达电通有限公司 | Integrated liquid-cooled heat dissipation module, backlight module using same and display device |
| CN115774353B (en) * | 2021-09-06 | 2024-04-19 | 苏州佳世达电通有限公司 | Integrated liquid-cooled heat dissipation module, backlight module using same and display device |
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