CN2641676Y

CN2641676Y - Radiator for LCD

Info

Publication number: CN2641676Y
Application number: CN 03270688
Authority: CN
Inventors: 潘世栋
Original assignee: XILIAN SCIENCE AND TECHNOLOGY Co Ltd
Current assignee: XILIAN SCIENCE AND TECHNOLOGY Co Ltd
Priority date: 2003-08-13
Filing date: 2003-08-13
Publication date: 2004-09-15
Anticipated expiration: 2013-08-13

Abstract

The utility model discloses a liquid crystal display (LCD) heat radiation device, which has good radiation function. The heat radiation device arranged behind a back light module of a liquid crystal display (LCD) is used to improve the heat radiation efficiency of the liquid crystal display (LCD). The utility model mainly comprises a back light module, an outer casing, an external heat radiation device and a heat radiation unit, an aluminum back board behind the back light module is fixed with the heat radiation unit through heat guiding glue, at least one heat radiation device(s) can be arranged on the aluminum back board to transfer the heat to the outer casing, and the external heat radiation device on the outer casing body is used to perform the secondary radiation, so as to discharge the heat and reach the purposes of rapid heat radiation and high heat radiation efficiency.

Description

The LCD heat abstractor

Technical field

The utility model relates to the heat abstractor of LCD (LCD), especially refer to a kind of being pasted on module backlight and the shell body, the unnecessary heat that produces in the time of getting rid of operation, avoid the control enclosure in the LCD (LCD) to damage, can keep the LCD heat abstractor of optimum Working because of overheated.

Background technology

LCD has been widely used in TV, personal computer now.Yet liquid crystal itself is not luminous; so LCD (LCD) must be equipped with module backlight; so that light source to be provided; but during the temperature that the temperature that light source produced itself can bear out of the control enclosure in the LCD (LCD) and module backlight; then can cause the operation irregularity or the damage of device; so how under the prerequisite that does not influence LCD (LCD) operation usefulness, the working temperature that reduces module backlight is an important problem in fact.

At present generally be used for the radiating mode on the LCD (LCD), its kind has a lot, mostly take mode as shown in Figure 1, it is mainly constructed and comprises module 1 backlight, shell body 3 and radiator fan 2, use-pattern is to set up radiator fan 2 at shell body 3 near louvre 4 positions, the heat that produces when module 1 backlight is moved, quicken its thermal convection by radiator fan 2, louvre from the shell body 3 again, heat release is come out, can improve radiating efficiency, but could produce cross-ventilation because of radiator fan 2 needs high-speed rotation, as be set directly on the module 1 backlight, the rotation of radiator fan 2 can influence the normal operation of module 1 backlight, because radiator fan 2 is erected on the shell body 3, can produce huge noise, and can produce electrostatic phenomenon when using, the dust accretions that is caused will influence its radiating effect.

Because above-mentioned shortcoming, my foundation experience is for many years developed the better LCD heat abstractor of radiating efficiency.

Summary of the invention

Fundamental purpose of the present utility model is to provide a kind of interior air flow of LCD that makes more smooth and easy fast, can eliminate the noise that is produced by fan, to improve the LCD heat abstractor of radiating efficiency.

A kind of LCD heat abstractor of the present utility model mainly comprises: module backlight, shell body, heat-sink unit body, external heat sink and control enclosure; It is characterized in that: be provided with a display board, a diffuser plate, plural fluorescent tube and a backlight in this module backlight; This shell body is arranged at outside the module backlight, is provided with a control enclosure and plural conduction hole in this shell body; The back side, reflection horizon of this backlight is fixed by thermal conductance glue and aluminium backboard, and the rear is provided with the heat-sink unit body, and this shell body is provided with external heat sink.

According to heat-conduction principle, the heat that module backlight produced in the work is conducted to shell body, this conduction hole can make air flow form the circulation of air-flow, and external heat sink is installed in LCD inner control box same position, heat is distributed rapidly, reach the purpose of quick heat radiating, so can reduce noise and keep its preferable radiating effect.

Description of drawings

Fig. 1, for commonly using the schematic perspective view of LCD heat abstractor.

Fig. 2, be three-dimensional exploded view of the present utility model.

Fig. 3, be the three-dimensional exploded view of the utility model module backlight.

Fig. 4, be the cut-open view of the utility model LCD.

Embodiment

For to the purpose of this utility model, technical characterictic and effect thereof can have and further understand and be familiar with, and lift a preferred embodiment now, and conjunction with figs. are described in detail as follows:

Referring to Fig. 2,3, a kind of LCD heat abstractor mainly comprises: module 10 backlight, shell body 40, heat-sink unit body 20, be located at external heat sink 50 and control enclosure 30 on the shell body 40; Be provided with a display board, a diffuser plate 103, the plural fluorescent tube 104 at rear and the backlight of forming by reflection horizon 105 and aluminium backboard 106 formed by diffusion sheet 101 and prism 102 in this module 10 backlight; The back side in the reflection horizon 105 of backlight added load onto aluminium backboard 106, interconnect by heat-conducting glue 107 and heat-sink unit body 20; Module 10 backlight is mounted in the shell body 40, this shell body 40 is provided with plural conduction hole 401, by heat-conducting glue 107 external heat sink 50 is affixed on the shell body 40 admittedly, when the heat of module 10 backlight is discharged by heat-sink unit body 20, heat in the shell body 40 is discharged shell body 40 by external heat sink 50, according to thermal convection principle, cold airflow can be inhaled into shell body 40 from conduction hole 401, forms the circulation of air-flow.

As can be seen from Figure 3, the relation of this module 10 backlight and heat-sink unit body 20; Plural fluorescent tube 104 in this module 10 backlight is the assemblies that produce heat, install aluminium backboard 106 additional at fluorescent tube 104 rear reflection layers 105 back side, and aluminium backboard 106 can conduct heat but can't directly dispel the heat, so aluminium backboard 106 is connected with heat-sink unit body 20 by heat-conducting glue 107, to reach the purpose of rapid heat radiation.

Referring to Fig. 4, after the combination of the utility model LCD, these heat-sink unit body 20 1 sides are fixed on the aluminium backboard 106 with heat-conducting glue 107 planes, opposite side though the heat of module backlight 10 has imported shell body 40, also has control enclosure 30 for enlarging the zigzag radiating surface of area of dissipation in the shell body 40, for preventing that control enclosure 30 from damaging because of overheated, with heat-conducting glue 107 external heat sink 50 is fixed on the shell body 40 again, heat is guided out shell body 40, reach the purpose of two degree heat radiations.

The above-mentioned heat-sink unit body 20 and the material of external heat sink 50 are high heat-conducting, for example: alumina cpd, aluminium nitride or aluminium nitride compound etc., both sides are the plane, be fixed in module 10 backlight or control enclosure 30 by heat-conducting glue 107, opposite side can be fin shape, wavy or jagged radiating surface, its quantity can be one or more, and is fixed in the external heat sink 50 of control enclosure 30, can make in integrated mode with shell body 40.

In sum, the utility model is at module backlight back side installing heat-sink unit body, according to heat-conduction principle, the heat that is produced is conducted to shell body, and be equiped with plural conduction hole and external heat sink on this shell body, conduction hole can make air flow form the air-flow circulation, so can reduce noise and keep radiating effect.

The above only is the utility model one preferred embodiment; be not to limit practical range of the present utility model with this; such as under spirit of the present utility model and principle; that has done various differently changes and modifies, and all should be covered by within the patent protection category that these claims define.

Claims

1. a LCD heat abstractor mainly comprises: module backlight, shell body, heat-sink unit body, external heat sink and control enclosure; It is characterized in that: be provided with a display board, a diffuser plate, plural fluorescent tube and a backlight in this module backlight; This shell body is arranged at outside the module backlight, is provided with a control enclosure and plural conduction hole in this shell body; The back side, reflection horizon of this backlight is fixed by thermal conductance glue and aluminium backboard, and the rear is provided with the heat-sink unit body, and this shell body is provided with external heat sink.

2. LCD heat abstractor according to claim 1 is characterized in that: the radiating surface of described heat-sink unit body is the fin shape.

3. LCD heat abstractor according to claim 1 is characterized in that: the radiating surface of described heat-sink unit body is wavy.

4. LCD heat abstractor according to claim 1 is characterized in that: the radiating surface of described heat-sink unit body is a zigzag.

5. LCD heat abstractor according to claim 1 is characterized in that: the radiating surface of described external heat sink is the fin shape.

6. LCD heat abstractor according to claim 1 is characterized in that: the radiating surface of described external heat sink is wavy.

7. LCD heat abstractor according to claim 1 is characterized in that: the radiating surface of described external heat sink is a zigzag.

8. LCD heat abstractor according to claim 1 is characterized in that: described external heat sink and shell body can adopt one-body molded making.