CN219014248U

CN219014248U - ELED backlight lamp pearl heat radiation structure

Info

Publication number: CN219014248U
Application number: CN202223157607.XU
Authority: CN
Inventors: 黄灵林; 王仟贤
Original assignee: Shenzhen Yixian Technology Co ltd
Current assignee: Shenzhen Yixian Technology Co ltd
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-05-12
Anticipated expiration: 2032-11-28

Abstract

The utility model discloses an ELED backlight lamp bead heat dissipation structure which comprises a front shell and a rear frame, wherein the inner side wall of the rear frame is fixedly connected with a display screen, a light guide plate, a reflecting plate and a back plate in sequence from front to back. According to the utility model, the heat generated by the LED mounting strip during operation can be rapidly LED out through the first heat conducting strip, the second heat conducting strip and the plurality of groups of heat conducting pipes, one part of the heat is emitted into the through cavities of the bottom frame and the side frame through the plurality of groups of heat conducting pipes, the other part of the heat is conducted to the side frame side wall, the contact area with air is increased through the wavy structure of the side frame side wall, the plurality of groups of copper pipes with the diameters of 0.5-3mm are selected to form capillary action, the heat dissipation speed is high, meanwhile, due to the principle of rising of hot air, the air in the through cavities of the bottom frame and the side frame rises after heat exchange with the heat conducting pipes, the air is discharged from the exhaust holes, and the normal-temperature air outside the air inlet Kong Xijin continuously enters the through cavities for heat exchange, so that a natural wind heat dissipation mode is formed, the heat dissipation effect is good, and the energy consumption is not increased.

Description

ELED backlight lamp pearl heat radiation structure

Technical Field

The utility model relates to the technical field of ELED, in particular to a heat dissipation structure of an ELED backlight lamp bead.

Background

The ELDE adopts a side-emitting mode, namely the LED lamp beads are arranged into a whole strip and are arranged at the bottom of a backlight assembly, and a light source is provided for an LCD panel.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides an ELED backlight lamp bead heat dissipation structure.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: ELED backlight bead heat radiation structure, including preceding shell, back frame inside wall is from front to back fixedly connected with display screen, light guide plate, reflector panel and backplate in proper order, the back frame comprises two sets of side frames that are left and right sides relative and the top frame that is arranged in between two sets of side frames and is close to upper and lower both ends respectively, the back frame material is the aluminum alloy, top frame, bottom frame and two sets of side frame inside wall all are provided with logical chamber, top frame, the inboard front wall of bottom frame and inboard back wall all are provided with the blend stop, the blend stop extends according to top frame, bottom frame length direction, two sets of blend stop upper wall fixedly connected with LED installing strips of bottom frame inside wall, LED lamp bead has been inlayed to LED installing strip upper surface, display screen, light guide plate, reflector panel and backplate set up between blend stop and LED installing strip in two sets of side frames and top frame, be provided with seal structure between display screen, backplate and the back frame, set of side frame and be provided with between LED installing strip and the two sets of side frames and be used for producing heat dissipation structure between two sets of side frames and the heat dissipation structure.

As a further description of the above technical solution:

the overlooking sections of side walls of the two groups of side frames opposite to each other are all wavy.

As a further description of the above technical solution:

the sealing structure is formed by two sealing glues, and the two sealing glues are respectively arranged between the display screen and the rear frame and between the backboard and the rear frame.

As a further description of the above technical solution:

the heat conduction structure comprises a first heat conduction sheet, two groups of second heat conduction sheets and a plurality of groups of heat conduction pipes, wherein the first heat conduction sheet is fixedly connected between two groups of barrier strips which are arranged on the lower wall of the LED mounting strip and are positioned on the inner side wall of the bottom edge frame through heat conduction glue, the two groups of the second heat conduction sheets are respectively and fixedly connected on the inner side walls of one sides of the two groups of opposite side edge frames, the heat conduction pipes are respectively and fixedly connected on the lower wall of the first heat conduction sheet, and one ends, far away from the first heat conduction sheets, of the heat conduction pipes are respectively and fixedly connected with one sides of the two groups of second heat conduction sheets.

As a further description of the above technical solution:

the first heat conducting fins and the two groups of second heat conducting fins are copper sheets, and the heat conducting pipes are copper pipes with diameters of 0.5-3 mm.

As a further description of the above technical solution:

the ventilation structure comprises an air inlet hole and two exhaust holes, wherein the air inlet hole is formed in the lower wall of the bottom edge frame and is in an up-down through shape, the two exhaust holes are respectively formed in one side wall of the two groups of side edge frames, which are opposite to each other, and are close to the upper end positions, and the two exhaust holes respectively enable the through cavities inside the two groups of side edge frames to be communicated with the outside.

As a further description of the above technical solution:

the filter screen frame is characterized in that the lower wall of the bottom frame is connected with the filter screen frame in a clamping mode and located at the opening part of the air inlet hole, the upper wall of the filter screen frame is provided with a dust filter screen, two groups of side frame side walls are respectively provided with a sinking table located at the opening part of the air outlet hole, and the inner side walls of the sinking tables are respectively connected with a dust cover in a clamping mode.

The utility model has the following beneficial effects:

compared with the prior art, the ELED backlight lamp bead heat dissipation structure has the advantages that heat generated during working of the LED mounting strip can be rapidly LED out through the first heat conduction sheet, the second heat conduction sheet and the plurality of groups of heat conduction pipes, a part of the heat is dissipated into the through cavities of the bottom frame and the side frame through the plurality of groups of heat conduction pipes, a part of the heat is conducted to the side frame side wall, the contact area between the heat dissipation structure and the side frame side wall is increased through the wavy structure, the heat dissipation speed is high, the plurality of groups of copper pipes with the diameter of 0.5-3mm are selected to form capillary action, meanwhile, due to the principle of rising of hot air, the air in the through cavities of the bottom frame and the side frame rises after heat exchange with the heat conduction pipes, the heat is discharged from the exhaust holes, normal-temperature air continues to enter the through cavities for heat exchange from the outside of the air inlet Kong Xijin, a natural wind heat dissipation mode is formed, the heat dissipation effect is good, and energy consumption is not increased.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an ELED backlight lamp bead heat dissipation structure according to the present utility model;

FIG. 2 is a partial enlarged view of the heat dissipation structure of the ELED backlight lamp beads shown in FIG. 1;

FIG. 3 is a schematic diagram of the overall structure of the heat dissipation structure of an ELED backlight lamp according to the present utility model;

FIG. 4 is a side view partially in cross section of the inner structure of the bottom frame of the heat dissipation structure of an ELED backlight lamp according to the present utility model;

FIG. 5 is a partial cross-sectional view of the internal structure of a side frame of an ELED backlight lamp bead heat dissipation structure according to the present utility model.

Legend description:

1. a front shell; 2. a display screen; 3. a side frame; 4. a top rim; 5. a bottom frame; 6. a sinking platform; 7. a dust cover; 8. a filter screen frame; 9. a dust filtering net; 10. an air inlet hole; 11. a barrier strip; 12. an LED mounting bar; 13. a light guide plate; 14. a light reflecting plate; 15. a back plate; 16. sealing glue; 17. a first heat conductive sheet; 18. a heat conduction pipe; 19. a second heat conductive sheet; 20. and an exhaust hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 5, the cooling structure of the ELED backlight lamp bead provided by the present utility model: the heat exchange device comprises a front shell 1 and a rear frame, wherein the inner side wall of the rear frame is sequentially and fixedly connected with a display screen 2, a light guide plate 13, a reflecting plate 14 and a back plate 15 from front to back, the rear frame consists of two groups of side frames 3 which are opposite left and right, a top frame 4 and a bottom frame 5 which are positioned between the two groups of side frames 3 and are respectively close to the upper end and the lower end, the rear frame is made of aluminum alloy, the overlooking cross section of one side wall of the two groups of side frames 3 which are opposite to each other is wavy, and the contact area between the wavy cross section and air can be increased on the premise of not increasing the size, so that the heat exchange area is increased, and the heat exchange speed is improved;

the top frame 4, the bottom frame 5 and the inner side walls of the two groups of side frames 3 are all provided with through cavities, the front wall and the inner side rear wall of the inner side of the top frame 4 and the bottom frame 5 are all provided with barrier strips 11, the barrier strips 11 extend along the length direction of the top frame 4 and the bottom frame 5, the upper walls of the two groups of barrier strips 11 on the inner side wall of the bottom frame 5 are fixedly connected with LED mounting strips 12, the upper surfaces of the LED mounting strips 12 are embedded with LED lamp beads, the display screen 2, the light guide plate 13, the reflecting plate 14 and the backboard 15 are arranged between the two groups of side frames 3 and between the barrier strips 11 and the LED mounting strips 12 in the top frame 4, sealing structures are arranged between the display screen 2, the backboard 15 and the rear frame, the sealing structures are two sealing glue 16, and the sealing glue 16 can be respectively arranged between the display screen 2 and the rear frame and between the backboard 15 and the rear frame, and the sealing glue 16 can prevent water and dust inside;

the LED mounting strip 12 and the two groups of side frames 3 are provided with a heat conduction structure for accelerating heat dissipation, the heat conduction structure comprises a first heat conduction sheet 17, two groups of second heat conduction sheets 19 and a plurality of groups of heat conduction pipes 18, the first heat conduction sheet 17 is fixedly connected between the two groups of barrier strips 11 which are positioned on the lower wall of the LED mounting strip 12 and the inner side wall of the bottom frame 5 through heat conduction glue, the two groups of second heat conduction sheets 19 are respectively fixedly connected on the inner side wall of the opposite sides of the two groups of side frames 3, the plurality of groups of heat conduction pipes 18 are respectively fixedly connected on the lower wall of the first heat conduction sheet 17, one end of each group of heat conduction pipes 18 far away from the first heat conduction sheet 17 is respectively fixedly connected with one side of each of the two groups of second heat conduction sheets 19, the first heat conduction sheet 17 and the two groups of second heat conduction sheets 19 are copper sheets, the plurality of heat conduction pipes 18 are copper pipes, the diameters of the plurality of groups of heat conduction pipes 18 are between 0.5 and 3mm, and the plurality of copper pipes form capillary action, so that heat generated during operation of the LED mounting strip 12 is transmitted along the plurality of groups of copper pipes, and the heat dissipation speed is high;

the ventilation structure for generating natural wind heat dissipation is arranged between the bottom frame 5 and the two groups of side frames 3, the ventilation structure comprises an air inlet 10 and two exhaust holes 20, the air inlet 10 is arranged on the lower wall of the bottom frame 5 and penetrates up and down, the two groups of exhaust holes 20 are respectively arranged on one side wall of the two groups of side frames 3, which are opposite to each other, and are close to the upper end position, the two exhaust holes 20 respectively enable the internal through cavities of the two groups of side frames 3 to penetrate through with the outside, the lower wall of the bottom frame 5 is connected with a filter screen frame 8 in a clamping manner and is positioned at the opening of the air inlet 10, the upper wall of the filter screen frame 8 is provided with a dust filtering net 9, the side walls of the two groups of side frames 3 are connected with a dust cover 7 in a clamping manner and are positioned at the opening of the exhaust holes 20, the exhaust holes 20 are arranged at the position close to the upper end according to the rising principle of hot air, the air inlet 10 is arranged at the position of the lower wall, the hot air formed after heat exchange of the plurality of groups of copper pipes and the through cavities, circulating natural wind is formed, the internal hot air is accelerated, the internal hot air is discharged, the dust filtering net 9 is good, the dust filtering net 9 and the dust filtering net 7 and the dust cover 7 can enter the outer wall to avoid the dust from being lowered.

Working principle: the back frame material is aluminum alloy, the cross-section is overlooked to a side wall that two sets of side frames 3 are opposite to each other and is wave, wave cross-section can increase under the prerequisite of not increasing the size and air contact area, thereby increase heat transfer area, promote heat transfer rate, the sealed glue 16 can be to inside waterproof dustproof, first conducting strip 17, two sets of second conducting strip 19 are the copper sheet, multiunit heat pipe 18 is copper pipe and diameter is between 0.5-3mm, form capillary action through multiunit copper pipe, the heat that produces when making the operation of LED installation strip 12 is followed multiunit copper pipe and is transmitted, the radiating rate is fast, according to the principle that the hot air risen, set up exhaust hole 20 in being close to upper end position, the fresh air that forms after passing through multiunit copper pipe and logical intracavity air heat transfer rises, form circulating natural wind and flow, it discharges to accelerate inside hot air, the radiating effect is good, dust filtering net 9 and shield 7 can avoid the dust to get into to cover and cause the heat transfer effect to reduce at the copper pipe outer wall.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

ELED backlight lamp pearl heat radiation structure, including preceding shell (1), back frame inside wall is fixedly connected with display screen (2), light guide plate (13), reflector panel (14) and backplate (15) in proper order behind to in the past, its characterized in that: the back frame comprises two groups of side frames (3) which are left and right opposite and top frames (4) and bottom frames (5) which are positioned between the two groups of side frames (3) and are respectively close to the upper end and the lower end, the back frame is made of aluminum alloy, the inner side walls of the top frames (4), the bottom frames (5) and the two groups of side frames (3) are all provided with through cavities, barrier strips (11) are respectively arranged on the front wall and the rear wall of the inner side of the top frames (4), the bottom frames (5), the barrier strips (11) extend according to the length direction of the top frames (4) and the bottom frames (5), LED mounting strips (12) are fixedly connected to the upper walls of the two groups of barrier strips (11) on the inner side walls of the bottom frames (5), LED lamp beads are embedded on the upper surfaces of the LED mounting strips (12), and the display screen (2), the light guide plates (13), the light reflecting plates (14) and the back plates (15) are arranged between the two groups of side frames (3), the barrier strips (11) and the LED mounting strips (12) in the top frames (4), the heat dissipation structures are arranged between the two groups of side frames (3), and the heat dissipation structures are arranged between the two groups of the top frames (3).
2. The ELED backlight bead heat dissipation structure of claim 1, wherein: the overlooking cross sections of the side walls of the two groups of side frames (3) which are opposite are wavy.
3. The ELED backlight bead heat dissipation structure of claim 2, wherein: the sealing structure is formed by two sealing adhesives (16), and the two sealing adhesives (16) are respectively arranged between the display screen (2) and the rear frame and between the backboard (15) and the rear frame.
4. The ELED backlight bead heat dissipation structure of claim 3, wherein: the heat conduction structure comprises a first heat conduction sheet (17), two groups of second heat conduction sheets (19) and a plurality of groups of heat conduction pipes (18), wherein the first heat conduction sheet (17) is fixedly connected between two groups of barrier strips (11) on the lower wall of an LED mounting strip (12) and the inner side wall of a bottom frame (5) through heat conduction glue, the two groups of second heat conduction sheets (19) are respectively and fixedly connected on one side inner side walls opposite to the two groups of side frames (3), the heat conduction pipes (18) are fixedly connected on the lower wall of the first heat conduction sheet (17), and one ends, far away from the first heat conduction sheets (17), of the heat conduction pipes (18) are respectively and fixedly connected on one sides opposite to the two groups of second heat conduction sheets (19).
5. The ELED backlight bead heat dissipation structure of claim 4, wherein: the first heat conducting fins (17) and the two groups of second heat conducting fins (19) are copper sheets, and the heat conducting pipes (18) are copper pipes with diameters of 0.5-3 mm.
6. The ELED backlight bead heat dissipation structure of claim 5, wherein: the ventilation structure comprises an air inlet hole (10) and two exhaust holes (20), wherein the air inlet hole (10) is formed in the lower wall of the bottom side frame (5) and is in an up-down through shape, the two exhaust holes (20) are respectively formed in one side wall of the two groups of side frames (3) opposite to each other and are close to the upper end, and the two exhaust holes (20) respectively enable the inner through cavities of the two groups of side frames (3) to be communicated with the outside.
7. The ELED backlight bead heat dissipation structure of claim 6, wherein: the filter screen frame (8) is clamped at the lower wall of the bottom side frame (5) and the opening part of the air inlet hole (10), and a dust filtering net (9) is arranged on the upper wall of the filter screen frame (8).
8. The ELED backlight bead heat dissipation structure of claim 7, wherein: the side walls of the two groups of side frames (3) and the openings of the exhaust holes (20) are provided with sinking tables (6), and the inner side walls of the sinking tables (6) are clamped with dust covers (7).