CN202026414U

CN202026414U - Heat radiation device of television set

Info

Publication number: CN202026414U
Application number: CN2011201061199U
Authority: CN
Inventors: 郭东明; 张涛
Original assignee: Shenzhen TCL New Technology Co Ltd
Current assignee: Shenzhen TCL New Technology Co Ltd
Priority date: 2011-04-12
Filing date: 2011-04-12
Publication date: 2011-11-02
Anticipated expiration: 2021-04-12

Abstract

The utility model relates to a heat radiation device of a television set, which comprises a bottom casing, a cover plate and a screening aluminium plate, wherein the bottom casing is a frame body of which the top surface is opened, the bottom surface of the bottom casing is fixed on the screening aluminium plate, and a relatively sealed space for containing a mainboard of a computer is formed inside the bottom casing after the cover plate and the top surface of the bottom casing are installed. According to the heat radiation device of the television set, the screening aluminium plate is directly designed as a heat radiation plate, a first graphite adhesive piece, a second graphite adhesive piece and a copper piece are added, and most of heat generated by a central processing unit (CPU) and a north bridge chip is conducted onto the screening aluminium plate for emission by the copper piece through the first graphite adhesive piece, the bottom casing and the second graphite adhesive piece. Meanwhile, through holes are designed on the bottom casing and the cover plate for emitting the rest heat, the heat-radiation scheme of a heat pipe and a fan is replaced, the thickness of the television set is decreased, the condition that dust is sucked by the fan is avoided, the service life is prolonged, the noise generated during working is lowered, and the cost is lower.

Description

The heat abstractor of television set

Technical field

The utility model relates to PCTV (Personal Computer Television, comvision) product technical field, relates in particular to a kind of heat abstractor of television set.

Background technology

Along with the quick propelling that three nets merge, PCTV progressively popularizes, and computer module is incorporated in the TV, makes TV functions more powerful.But simultaneously bigger because of the CPU in the computer module (Central Processing Unit, central processing unit) and north bridge chips power, to satisfy under the ultra-thin prerequisite of TV, in the narrow space of TV, it is very difficult that heat radiation becomes.Therefore, need to introduce the heat sink conception that heat pipe adds fan usually.Yet on the one hand fan can produce noise, and itself shorter in life-span; The dust of environment can be drawn into TV inside fast on the other hand, make the TV internal electronic device life-span shorten.

The utility model content

Main purpose of the present utility model provides a kind of heat abstractor of television set, is intended to satisfy under the prerequisite of the ultra-thin size of complete machine, optimizes its radiator structure, prolongs the useful life of TV device.

The heat abstractor of a kind of television set that the utility model provides, comprise drain pan, cover plate and screen aluminium sheet, described drain pan is the open framework of an end face, the bottom surface of described drain pan is fixed on the described screen aluminium sheet, and described cover plate is installed the back in relative sealed space that is used to hold computer motherboard of the inner formation of drain pan with described drain pan end face.

Preferably, the utility model also comprises copper sheet, the first graphite film and the second graphite film, and described copper sheet is arranged on the described computer motherboard; The described first graphite film is close to described copper sheet and drain pan one medial surface respectively; The described second graphite film is close to drain pan one lateral surface and screen aluminium sheet respectively.

Preferably, the described first graphite film is the setting of knuckle shape, and a folded angular surface and described drain pan one medial surface are close to, and another folded angular surface and described copper sheet are close to;

The described second graphite film is the setting of knuckle shape, and a folded angular surface and described drain pan one lateral surface are close to, and another folded angular surface and described screen aluminium sheet are close to.

Preferably, a medial surface size of the folded angular surface be close to of the described first graphite film and drain pan and the drain pan be close to it is identical.

Preferably, a lateral surface size of the folded angular surface be close to of the described second graphite film and drain pan and the drain pan be close to it is identical.

Preferably, the described first graphite film is connected with described copper sheet surface in whole or in part with the folded angular surface that described copper sheet is close to.

Preferably, described cover plate is provided with through hole.

Preferably, the base plate of described drain pan and/or sidewall are provided with through hole.

Preferably, described drain pan is the aluminium sheet metal component, and the surface is provided with anodic oxide coating.

Preferably, described cover plate is a plastic sheet.

The utility model directly designs the screen aluminium sheet of TV as heating panel, and on this screen aluminium sheet structure, increase by the first graphite film, the structure of the second graphite film and copper sheet, most of heat that CPU and north bridge chips are produced by copper sheet through the first graphite film, the drain pan and the second graphite film conduct on the screen aluminium sheet and distribute, the design through hole distributes all the other heats on drain pan and cover plate simultaneously, the utility model has substituted the heat sink conception that heat pipe adds fan, can reduce the gap that is provided with between heating panel and the back cover effectively, reduced the thickness of television set, also avoided simultaneously the dust suction of fan with environment, make the electronic device life-span shorten, the noise that has produced when having reduced work, cost is lower, has prolonged useful life.

Description of drawings

Fig. 1 is the structural representation of heat abstractor one embodiment of the utility model television set;

Fig. 2 is the structural representation of computer motherboard among heat abstractor one embodiment of the utility model television set;

Fig. 3 is the structural representation of drain pan among heat abstractor one embodiment of the utility model television set;

Fig. 4 is the structural representation of the heat abstractor one embodiment cover plate of the utility model television set;

Fig. 5 is the structural representation of the first graphite film among heat abstractor one embodiment of the utility model television set;

Fig. 6 is the structural representation of the second graphite film among heat abstractor one embodiment of the utility model television set.

The realization of the utility model purpose, functional characteristics and advantage will be in conjunction with the embodiments, are described further with reference to accompanying drawing.

Embodiment

Be described further with regard to the technical solution of the utility model below in conjunction with drawings and the specific embodiments.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.

Below be that example describes with PCTV computer to dissipate heat structure, but be not limited to the situation in the PCTV computer to dissipate heat structure in the present embodiment.

Referring to figs. 1 through Fig. 6, show the heat abstractor of television set among the utility model one embodiment, comprise drain pan 10, cover plate 20 and screen aluminium sheet 30, above-mentioned drain pan 10 is the open framework of an end face, be a pond shape, the bottom surface of drain pan 10 is fixed on the screen aluminium sheet 30 and with screen aluminium sheet 30 to be close to, and cover plate 20 forms relative sealed space in drain pan 10 inside after hiding open surface, and computer motherboard 70 places the base plate top of drain pan 10.

Directly that thermal conductivity is the higher screen aluminium sheet 30 of present embodiment uses as heating panel, can realize on the one hand the effect of dispelling the heat effectively, substituted the heat sink conception that heat pipe adds fan on the other hand, reduced thickness effectively, the noise that has produced when having reduced work, cost is lower, has prolonged useful life, simultaneously avoid fan that the dust of environment is sucked fast again, made the electronic device life-span shorten.

Present embodiment also comprises copper sheet 60, the first graphite film 40 and the second graphite film 50, this copper sheet 60 is arranged on the aforementioned calculation machine mainboard 70, specifically, this copper sheet 60 is arranged on the CPU71 on the computer motherboard 70 and the surface of north bridge chips 72, because the power of CPU71 and north bridge chips 72 is bigger on computer motherboard 70, caloric value is also higher, and the heat dissipation problem that has therefore solved the two has substantially just solved the heat dissipation problem of computer motherboard 70; The first graphite film 40 is close to copper sheet 60 and drain pan 10 1 medial surfaces respectively; The second graphite film 50 is close to drain pan 10 1 lateral surfaces and screen aluminium sheet 30 respectively.Powerful CPU71 and north bridge chips 72 produce a large amount of heats when computer motherboard 70 work, will be by the copper sheet of being close to it 60, conduct to screen aluminium sheet 30 through the first graphite film 40, drain pan 10 and the second graphite film 50, the screen aluminium sheet 30 bigger by relative area dispels the heat, above-mentioned conducting-heat elements all is to be made by thermal conductivity higher material and structure, can further strengthen the effect of heat conduction and heat radiation.

The above-mentioned first graphite film 40 is the setting of knuckle shape, and a folded angular surface and drain pan 10 1 medial surfaces are close to, and this folded angular surface and this medial surface size basically identical, to guarantee the good conduction of heat; Being close in whole or in part of another folded angular surface and copper sheet 60, the big more conduction of being close to copper sheet 60 that helps heat more of area.

The above-mentioned second graphite film 50 is the setting of knuckle shape, and a folded angular surface and drain pan 10 1 lateral surfaces are close to, and this folded angular surface and this lateral surface size basically identical, to guarantee the good conduction of heat; Another folded angular surface is close to screen aluminium sheet 30, and this folded angular surface and the big more conduction that helps heat more of area be close to of screen aluminium sheet 30.

The above-mentioned first graphite film 40 and the second graphite film 50 can be acute angle knuckle, right angle knuckle, obtuse angle knuckle or even fillet according to the relation of the position between copper sheet 60, screen aluminium sheet 30 and the drain pan 10.Be preferably fillet.

With reference to Fig. 3, show the structure of drain pan 10 among the utility model one embodiment, this drain pan 10 is the aluminium sheet metal component, and make anodization, the heat transferred that can fast the first graphite film 40 be derived the second graphite film 50, and the fraction heat (drain pan 10) outwards distributed by self, drain pan 10 bottoms and top side wall all offer strip through-hole near the position of above-mentioned CPU71 and north bridge chips 72, cover plate 20 tops also offer strip through-hole near the position of CPU71 and north bridge chips 72, the ventilation hole of drain pan 10 and cover plate 20 can form one by computer motherboard 70, especially the air channel of CPU71 and north bridge chips 72 can be taken away the part heat on the computer motherboard 70 by the mode of the convection current of air.

With reference to Fig. 4, show the structure of the utility model one embodiment cover plate 20, this cover plate 20 is the plastic sheet of black, can intercept drain pan 10 and pass the heat of coming to hard disk 73 heating, avoids influencing the operate as normal of hard disk 73, has also reduced cost simultaneously.

The shape of the through hole that is provided with on above-mentioned drain pan 10 and the cover plate 20 comprises that bar shaped, circle, triangle, quadrangle or other can realize the shape of ventilation effect.

The utility model directly will shield aluminium sheet 30 and design as heating panel, and on these screen aluminium sheet 30 structures, increase by the first graphite film 40, the structure of the second graphite film 50 and copper sheet 60, most of heat of CPU71 and north bridge chips 72 generations is passed through copper sheet 60 through the first graphite film 40, the drain pan 10 and the second graphite film 50 conduct on the screen aluminium sheet 30 and distribute, the design through hole distributes all the other heats on drain pan 10 and cover plate 20 simultaneously, the utility model has substituted the heat sink conception that heat pipe adds fan, can reduce the gap that is provided with between heating panel and the back cover effectively, reduced the thickness of television set, also avoided simultaneously the dust suction of fan with environment, make the electronic device life-span shorten, the noise that has produced when having reduced work, cost is lower, has prolonged useful life.

The above only is a preferred embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure transformation that utilizes the utility model specification and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.

Claims

1. the heat abstractor of a television set, comprise drain pan, cover plate and screen aluminium sheet, it is characterized in that, described drain pan is the open framework of an end face, the bottom surface of described drain pan is fixed on the described screen aluminium sheet, and described cover plate is installed the back in relative sealed space that is used to hold computer motherboard of the inner formation of drain pan with described drain pan end face.

2. the heat abstractor of television set according to claim 1 is characterized in that, also comprises copper sheet, the first graphite film and the second graphite film, and described copper sheet is arranged on the described computer motherboard; The described first graphite film is close to described copper sheet and drain pan one medial surface respectively; The described second graphite film is close to drain pan one lateral surface and screen aluminium sheet respectively.

3. the heat abstractor of television set according to claim 2 is characterized in that, the described first graphite film is the setting of knuckle shape, and a folded angular surface and described drain pan one medial surface are close to, and another folded angular surface and described copper sheet are close to;

4. the heat abstractor of television set according to claim 3 is characterized in that, a medial surface size of folded angular surface that the described first graphite film and drain pan are close to and the drain pan of being close to it is identical.

5. the heat abstractor of television set according to claim 3 is characterized in that, a lateral surface size of folded angular surface that the described second graphite film and drain pan are close to and the drain pan of being close to it is identical.

6. the heat abstractor of television set according to claim 3 is characterized in that, the described first graphite film is connected with described copper sheet surface in whole or in part with the folded angular surface that described copper sheet is close to.

7. the heat abstractor of television set according to claim 1 is characterized in that, described cover plate is provided with through hole.

8. according to the heat abstractor of any described television set in the claim 1 to 6, it is characterized in that the base plate and/or the sidewall of described drain pan are provided with through hole.

9. according to the heat abstractor of any described television set in the claim 1 to 6, it is characterized in that described drain pan is the aluminium sheet metal component, the surface is provided with anodic oxide coating.

10. according to the heat abstractor of claim 1 or 7 described television sets, it is characterized in that described cover plate is a plastic sheet.