Backlight heat dissipation structure of liquid crystal display screen

Abstract

The utility model relates to a liquid crystal display screen backlight source heat dissipation structure which comprises an installation substrate and a backlight source body fixedly installed in the installation substrate. One side of the mounting substrate is provided with a cooling mechanism used for taking away heat generated by working of the backlight source body and providing cold air for cooling, a heat dissipation fin plate adsorbs the heat generated by the backlight source body, the contact area with air is increased, heat dissipation is facilitated, meanwhile, a semiconductor chilling plate is started, the interior of the mounting box is cooled, and the heat dissipation efficiency is improved. The fan is started to suck external air into the mounting box, due to the arrangement of the two partition plates in the mounting box, the stroke edge of the air is long, the time of staying in the mounting box is long, the refrigerated time is prolonged, the refrigeration effect is improved, finally cold air is exhausted through the multiple air outlet pipelines on one side of the mounting box, and due to the fact that the multiple air outlet pipelines all face the cooling fin plates, the cooling effect is improved. And meanwhile, the heat dissipation fin plate and the backlight source body can be subjected to cooling treatment.

Description

TECHNICAL FIELD

[0001] The utility model relates to display screen backlight heat dissipation equipment technical field, concretely is a liquid crystal display screen backlight heat dissipation structure. BACKGROUND

[0002] The shape of the backlight is usually flat, which can generate a large amount of heat when powered on. To ensure that the display screen can operate at normal temperature, a cooling mechanism needs to be provided on the back side of the backlight to cool the backlight. In the prior art, the cooling effect of the single heat sink on the back side of the backlight is not good, and the heat is dissipated slowly on the heat sink, lacking the function of cooling the heat sink with cold air.

[0003] For example, the authorized patent document with the application number CN202322475875.4 discloses a liquid crystal display screen backlight heat dissipation structure, which relates to the field of liquid crystal display screens, and includes an outer ring plate arranged on the lower side of the backlight plate, a heat conduction plate, a plurality of groups of heat conduction rods fixedly connected to the lower surface of the heat conduction plate, a plurality of groups of fins fixedly sleeved on the outer side of the plurality of groups of heat conduction rods, an inner side wall of the outer ring plate being clamped with a gas distribution pipe, a plurality of groups of exhaust pipes fixedly connected to one side of the gas distribution pipe, the plurality of groups of heat conduction rods being evenly distributed at equal distances on the lower surface of the heat conduction plate, the plurality of groups of fins being respectively distributed at equal distances on the outer side of the plurality of groups of heat conduction rods, the plurality of groups of exhaust pipes being distributed at equal distances on one side of the gas distribution pipe, and a plurality of groups of air blowing holes being respectively formed at equal distances on the outer side of the plurality of groups of exhaust pipes.

[0004] The above-mentioned patent has the problem of poor cooling effect of the single heat sink on the back side of the backlight, slow heat dissipation on the heat sink, and lack of function of cooling the heat sink with cold air. Therefore, we need to provide a liquid crystal display screen backlight heat dissipation structure. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a liquid crystal display screen backlight heat dissipation structure, which sets a cooling mechanism on one side of the mounting base plate to cool the surface heat dissipation fins of the backlight body, can quickly remove the heat generated by the backlight plate, and ensures that the backlight plate can maintain a low temperature after a long time of work. This helps to prolong the service life of the backlight plate and reduce the performance degradation or failure caused by overheating, solving the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a liquid crystal display screen backlight heat dissipation structure, comprising:

[0007] A mounting base plate and a backlight body fixedly installed inside the mounting base plate;

[0008] The side of the mounting base plate is provided with a cooling mechanism for taking away the heat generated by the backlight body and providing cold air for cooling;

[0009] The side of the mounting base plate is provided with a mounting mechanism for quick mounting and dismounting between the cooling mechanism and the mounting base plate.

[0010] Preferably, the bottom of the backlight body is fixedly provided with a heat dissipation fin plate, and the cold air outlet direction of the cooling mechanism faces the surface of the heat dissipation fin plate.

[0011] Preferably, the side of the mounting base plate is provided with a mounting box, one side of the mounting box is provided with a clamping groove, the clamping groove is clamped with the side of the mounting base plate, and the mounting mechanism is used for fixedly mounting the mounting box on the side of the mounting base plate.

[0012] Preferably, the cooling mechanism comprises two partitions fixedly mounted in the mounting box, the two partitions are mounted on the front surface and the back surface of the inner wall of the mounting box respectively, a fan device is embedded in the air inlet of the mounting box, a semiconductor refrigeration sheet is embedded in the bottom of the mounting box, the refrigeration surface of the semiconductor refrigeration sheet is located in the mounting box, and a plurality of air outlet pipes are embedded in the side of the mounting box and face the surface of the heat dissipation fin plate.

[0013] Preferably, the front surface and the back surface of the inner wall of the mounting box are fixedly provided with arc-shaped corner seats for air guiding, and the heating surface of the bottom of the semiconductor refrigeration sheet is provided with a heat dissipation fin.

[0014] Preferably, the air inlet of the mounting box is embedded with an air inlet pipe, the air inlet pipe is located at the back surface of the fan device, a filter cylinder is threadedly mounted in the air inlet pipe, a filter core is mounted in the filter cylinder, and an annular protrusion is integrally formed on the surface of the filter cylinder.

[0015] Preferably, the mounting mechanism comprises two mounting bolts slidingly mounted on the top of the mounting box, two threaded grooves are formed in the mounting base plate, and the two threaded grooves are threadedly mounted with the two mounting bolts respectively.

[0016] Preferably, the side of the mounting base plate is fixedly provided with two guide fins, and the mounting box is located between the two guide fins.

[0017] Compared with the prior art, the backlight cooling device has the following beneficial effects:

[0018] The cooling mechanism is arranged on the side of the mounting base plate, the surface of the heat dissipation fin plate of the backlight body is cooled, the heat generated by the backlight plate can be quickly taken away, and the temperature of the backlight plate can be maintained low after long time working. This helps to prolong the service life of the backlight plate and reduce the performance decline or failure caused by overheating. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the structure perspective view of the utility model;

[0020] Figure 2 It is the structure bottom view of the utility model;

[0021] Figure 3 It is the installation mechanism perspective view of the utility model;

[0022] Figure 4 It is the cooling mechanism perspective view of the utility model;

[0023] Figure 5 It is the filter core perspective view of the utility model.

[0024] In the drawing: 1, installation base plate; 2, backlight body; 3, cooling mechanism; 31, fan device; 32, semiconductor refrigerating sheet; 33, air outlet pipeline; 34, partition; 4, installation mechanism; 41, installation bolt; 42, screw groove; 5, heat dissipation fin plate; 6, installation box; 7, clamping groove; 8, arc angle seat; 9, cooling fin; 10, air inlet pipe; 11, filter cylinder; 12, filter core; 13, guide vane. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0026] Please refer to Figures 1-5 The utility model provides a technical scheme: a liquid crystal display screen backlight heat dissipation structure, comprising:

[0027] Installation base plate 1 and the backlight body 2 fixedly installed inside installation base plate 1 are set up;

[0028] One side of installation base plate 1 is provided with cooling mechanism 3 for carrying away the heat generated by the work of backlight body 2, and simultaneously providing cold air to cool down;

[0029] One side of installation base plate 1 is provided with installation mechanism 4 for quick mounting and dismounting between cooling mechanism 3 and installation base plate 1;

[0030] Specifically, the cooling mechanism 3 is arranged on one side of the mounting base plate 1 to cool the surface of the heat dissipation fin 5 of the backlight body 2, so that the heat generated by the backlight panel can be quickly removed, and the temperature of the backlight panel can be maintained low after long time working. This helps to prolong the service life of the backlight panel and reduce the performance degradation or failure caused by overheating.

[0031] The heat dissipation fin 5 is fixedly installed at the bottom of the backlight body 2, and the cold air outlet direction of the cooling mechanism 3 faces the surface of the heat dissipation fin 5.

[0032] In this embodiment, the heat dissipation fin 5 absorbs the heat generated by the backlight body 2 and increases the contact area with air, which is conducive to heat dissipation. At the same time, the semiconductor refrigeration sheet 32 is started to cool the installation box 6, and the fan device 31 is started to suck external air into the installation box 6. Due to the arrangement of the two partitions 34 in the installation box 6, the air travel side length is increased, the time of staying in the installation box 6 is longer, the refrigeration time is extended, and the refrigeration effect is improved. Finally, the cold air is discharged through the several air outlet pipelines 33 on one side of the installation box 6. Since the several air outlet pipelines 33 all face the heat dissipation fin 5, the heat on the surface of the heat dissipation fin 5 can be removed, and the heat dissipation fin 5 and the backlight body 2 can be cooled at the same time.

[0033] At the same time, the two limiting bolts are inserted through the installation box 6 and are screwed with the two threaded holes on the mounting base plate 1, so that the mounting base plate 1 and the cooling mechanism 3 can be easily installed and removed, and the maintenance can be easily performed.

[0034] One side of the mounting base plate 1 is provided with the installation box 6, and one side of the installation box 6 is provided with the clamping groove 7. The clamping groove 7 is clamped with one side of the mounting base plate 1, and the installation mechanism 4 is used to fixedly install the installation box 6 on one side of the mounting base plate 1.

[0035] Specifically, the clamping groove 7 on one side of the installation box 6 is clamped with the mounting base plate 1, and the installation box 6 and the mounting base plate 1 are connected, so that the two can be combined.

[0036] The cooling mechanism 3 includes two partitions 34 fixedly installed in the installation box 6. The two partitions 34 are respectively installed on the front surface and the back surface of the inner wall of the installation box 6. The fan device 31 is embedded in the air inlet of the installation box 6, and the semiconductor refrigeration sheet 32 is embedded in the bottom of the installation box 6. The refrigeration surface of the semiconductor refrigeration sheet 32 is located in the installation box 6. A plurality of air outlet pipelines 33 are embedded on one side of the installation box 6, and the plurality of air outlet pipelines 33 all face the surface of the heat dissipation fin 5.

[0037] It should be noted that the semiconductor refrigeration sheet 32 is started, the installation box 6 is cooled, the fan 31 is started, the external air is sucked into the installation box 6, due to the setting of the two partitions 34 in the installation box 6, the air stroke side length, the time in the installation box 6 is longer, the refrigeration time is prolonged, the refrigeration effect is improved, and finally the cold air is discharged through the side of the installation box 6. A plurality of air outlet pipes 33, because a plurality of air outlet pipes 33 are all directed to the heat dissipation fin 5, the heat on the surface of the heat dissipation fin 5 is taken away.

[0038] The front and back of the inner wall of the installation box 6 are fixedly installed with arc-shaped corner seats 8 for air guiding, and the heat dissipation fins 9 are installed on the bottom of the semiconductor refrigeration sheet 32.

[0039] Among them, the front and back of the inner wall of the installation box 6 are fixedly installed with arc-shaped corner seats 8 for air guiding, which has a guiding effect on the circulation of air in the installation box 6.

[0040] The air inlet of the installation box 6 is embedded with an air inlet pipe 10, the air inlet pipe 10 is located at the back of the fan 31, the inside of the air inlet pipe 10 is screw-mounted with a filter cylinder 11, the inside of the filter cylinder 11 is installed with a filter core 12, and the surface of the filter cylinder 11 is integrally processed with an annular convex part.

[0041] It is worth noting that before the external air enters the installation box 6, it needs to pass through the filter core 12 in the filter cylinder 11 to intercept sundries and prevent dust from entering the installation box 6, and the filter cylinder 11 and the air inlet pipe 10 are screw-mounted, which facilitates the dismounting and replacement of the filter cylinder 11.

[0042] The mounting mechanism 4 includes two mounting bolts 41 slidingly mounted on the top of the installation box 6, and the inside of the mounting base plate 1 is provided with two threaded grooves 42, and the two threaded grooves 42 are screw-mounted with the two mounting bolts 41 respectively.

[0043] Specifically, two limiting bolts are used to penetrate the installation box 6 and are screw-connected with two threaded holes on the mounting base plate 1, so that the mounting base plate 1 and the cooling mechanism 3 are conveniently mounted and dismounted, and maintenance is facilitated.

[0044] One side of the mounting base plate 1 is fixedly installed with two guide pieces 13, and the installation box 6 is located between the two guide pieces 13.

[0045] In order to facilitate the alignment of the mounting bolt 41 and the threaded groove 42, the two guide pieces 13 are arranged to facilitate the clamping of the installation box 6.

[0046] The heat dissipation fin plate 5 absorbs the heat generated by the backlight body 2, increases the contact area with air, is beneficial to heat dissipation, starts the semiconductor refrigeration sheet 32 to perform cooling treatment on the mounting box 6, and starts the fan device 31 to suck external air into the mounting box 6. Due to the setting of the two partitions 34 in the mounting box 6, the air stroke side length is long, stays in the mounting box 6 for a long time, the refrigeration time is prolonged, the refrigeration effect is improved, and finally the cold air is discharged through the plurality of air outlet pipelines 33 on one side of the mounting box 6. Since the plurality of air outlet pipelines 33 are all directed to the heat dissipation fin plate 5, the heat on the surface of the heat dissipation fin plate 5 is taken away, and the heat dissipation fin plate 5 and the backlight body 2 can be cooled at the same time.

[0047] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A heat dissipation structure for a liquid crystal display backlight, characterized in that, The utility model relates to a backlight source body (2) is fixedly installed in the installation base plate (1), and the cooling mechanism (3) is arranged on one side of the installation base plate (1) and is used for taking away the heat generated by the backlight source body (2) and providing cooling air to cool down. The utility model relates to a backlight source body (2) is fixedly installed in the installation base plate (1), and the cooling mechanism (3) is arranged on one side of the installation base plate (1) and is used for taking away the heat generated by the backlight source body (2) and providing cooling air to cool down. The utility model relates to a backlight source body (2) is fixedly installed in the installation base plate (1), and the cooling mechanism (3) is arranged on one side of the installation base plate (1) and is used for taking away the heat generated by the backlight source body (2) and providing cooling air to cool down. The utility model relates to a backlight source body (2) is fixedly installed in the installation base plate (1), and the cooling mechanism (3) is arranged on one side of the installation base plate (1) and is used for taking away the heat generated by the backlight source body (2) and providing cooling air to cool down.

2. The heat dissipating structure for the backlight of the liquid crystal display panel according to claim 1, wherein: The utility model relates to a backlight source body (2) is fixedly installed in the installation base plate (1), and the cooling mechanism (3) is arranged on one side of the installation base plate (1) and is used for taking away the heat generated by the backlight source body (2) and providing cooling air to cool down.

3. The heat dissipating structure for the backlight of the liquid crystal display panel according to claim 1, wherein: The utility model relates to a backlight source body (2) is fixedly installed in the installation base plate (1), and the cooling mechanism (3) is arranged on one side of the installation base plate (1) and is used for taking away the heat generated by the backlight source body (2) and providing cooling air to cool down.

4. The heat dissipating structure for the backlight of the liquid crystal display panel according to claim 2, wherein: The utility model relates to a backlight source body (2) is fixedly installed in the installation base plate (1), and the cooling mechanism (3) is arranged on one side of the installation base plate (1) and is used for taking away the heat generated by the backlight source body (2) and providing cooling air to cool down.

5. The heat dissipating structure for the backlight of the liquid crystal display panel according to claim 4, wherein: The utility model relates to a backlight source body (2) is fixedly installed in the installation base plate (1), and the cooling mechanism (3) is arranged on one side of the installation base plate (1) and is used for taking away the heat generated by the backlight source body (2) and providing cooling air to cool down.

6. The heat dissipating structure for the backlight of the liquid crystal display panel according to claim 5, wherein: The utility model relates to a backlight source body (2) is fixedly installed in the installation base plate (1), and the cooling mechanism (3) is arranged on one side of the installation base plate (1) and is used for taking away the heat generated by the backlight source body (2) and providing cooling air to cool down.

7. The heat dissipating structure for the backlight of the liquid crystal display panel according to claim 1, wherein: The utility model relates to a backlight source body (2) is fixedly installed in the installation base plate (1), and the cooling mechanism (3) is arranged on one side of the installation base plate (1) and is used for taking away the heat generated by the backlight source body (2) and providing cooling air to cool down.

8. The heat dissipating structure for the backlight of the liquid crystal display panel according to claim 7, wherein: The utility model relates to a backlight source body (2) is fixedly installed in the installation base plate (1), and the cooling mechanism (3) is arranged on one side of the installation base plate (1) and is used for taking away the heat generated by the backlight source body (2) and providing cooling air to cool down. The utility model relates to a backlight source body (2) is fixedly installed in the installation base plate (1), and the cooling mechanism (3) is arranged on one side of the installation base plate (1) and is used for taking away the heat generated by the backlight source body (2) and providing cooling air to cool down. The utility model relates to a backlight source body (2) is fixedly installed in the installation base plate (1), and the cooling mechanism (3) is arranged on one side of the installation base plate (1) and is used for taking away the heat generated by the backlight source body (2) and providing cooling air to cool down.

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