CN2476056Y

CN2476056Y - Apparatus for radiating and preventing electromagnetic wave releasing of portable computer

Info

Publication number: CN2476056Y
Application number: CN 01210263
Authority: CN
Inventors: 王炯中
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-01-18
Filing date: 2001-01-18
Publication date: 2002-02-06
Anticipated expiration: 2011-01-18

Abstract

A portable computer radiating and electromagnetic wave releasing proof device is disclosed, comprising a top cover, a metal plate, a keyboard field (touch control type liquid crystal screen), a main board and a bottom shell. The bottom shell comprises a shell cover with a plurality of air inlet holes thereof. Most air inlet holes are covered by a metal foil which is fixed on internal surface of the shell cover and only a window hole at the central processor position is left. The window hole is for the fan to extract the air out of the bottom shell to remove heat on the radiator which is emitted by the central processor. The edges of the metal plate are flanged downwards to be hem and the top end of the lateral wall is expanded to make a shelf for the hem. A shielding space with metal internal surface therein is provided between the bottom shell and the metal plate, which can prevent the electromagnetic wave from penetrating the shielding space.

Description

Portable computer heat radiation and prevent the electromagnetic wave releasing device

The utility model relates to a kind of portable computer heat radiation and prevents the electromagnetic wave releasing device.

Utility model patent discloses it " portable computer central authorities reason device radiator structure " (calling preceding case in the following text) for No. 99214382.9, mainly be to be equipped with central processing unit, the motherboard of heat radiator and phoenix fan stands upside down up and down and is installed in the main frame, and be supported in jointly on the sheet metal with top keyboard (or touch control type LCD screen), so therefore the phoenix fan can abut against the default air admission hole of main case, make central processing unit not only can utilize heat radiator and phoenix fan to improve radiating efficiency, and can not be subjected to main frame top keyboard obstruction and directly extract the drain pan outside air, the heat that central processing unit distributes on heat radiator is removed, and significantly improved computer heat radiation efficient.

Yet it is well-known, any product, if a large amount of production, and can reach the interchangeability of part, unique method of distinguishing is to make a kind of mould that can produce certain specific component earlier, this mould is as long as cooperate the special machine of producing this product, just can in the shortest time, produce the various part products of a large amount of and tool interchangeability, so not only reduce cost of labor, and reduce the generation of defective products, also directly reduced the cost of product, the wish that the person that more do not boost consumption buys.But for small requirements, then its demand does not meet mass-produced cost benefit; Because mould takes very expensive.

According to the pin of establishing of preceding case, the air admission hole position must be under the phoenix fan on the drain pan, and the beginning can allow the phoenix fan successfully extract the drain pan outside air to disperse heat.Yet general central processing unit position on motherboard is not to immobilize, and it may be different with the system design of computermaker; Relative, air admission hole position on drain pan also will change thereupon, so certainly will will develop many moulds and produce drain pan.Therefore, if be small requirements, then the design of preceding case obviously is not inconsistent cost benefit.

On the other hand, though whether the electromagnetic wave that disengages when scientist and academia use for computer so far really can cause brain or lesion tissue still not to have final conclusion, caused the popular doubt of consumption.Therefore, many countries all formulate a cover electromagnetic wave test stone, and computermaker has also begun research and development and lowered the technology that computer discharges electromagnetic wave, but up to now, effect is not remarkable.

The purpose of this utility model is to provide a kind of portable computer heat radiation device, this device satisfies the phoenix fan and directly extracts main frame drain pan outside air, supply under the function that heat is removed on the central processing unit heat radiator, allow central processing unit position on motherboard to change arbitrarily, to save the mould expense of making the drain pan that the various inlet hole site is arranged, to meet the cost benefit of small requirements.

Another purpose of the present utility model is to provide a kind of device that prevents that electromagnetic wave from disengaging, and this device provides a shed space that metallic interior surface arranged, and the electromagnetic wave that disengages when computer is used can't penetrate this shed space, avoids human body contact electromagnetic wave.

Portable computer heat radiation of the present utility model and prevent the electromagnetic wave releasing device, mainly by a loam cake, sheet metal, keyboard (or touch control type LCD screen), motherboard and drain pan are formed, be characterized in: drain pan comprises an opening, the size of opening, contain the position of central processing unit on main frame, drain pan comprises a cap that several air admission holes are arranged, the air admission hole major part is covered in the metal forming of cap inside surface by a solid work, only stay a fenestra in the face of central processing unit position on the motherboard, directly extract the drain pan outside air for the phoenix fan heat that central processing unit distributes on heat radiator is removed.

Above-mentioned sheet metal periphery is bent to form flanging downwards, external coating conductive paint within the drain pan, sidewall upper expands outwardly and forms above shelf rests for flanging, making has a shed space with metallic interior surface between drain pan and sheet metal, the electromagnetic wave that disengages when computer is used can't penetrate this and keep away and cover the space.

Description of drawings:

Fig. 1 is a portable computer transverse cross-sectional view of the present utility model.

Fig. 2 is a top perspective exploded view of the present utility model.

Fig. 3 is a drain pan exploded view of the present utility model.

Fig. 4 is the sectional view of A-A line among Fig. 1.

Fig. 5 is the sectional view of B-B line among Fig. 1.

The number in the figure explanation:

1 ... loam cake 2 ... sheet metal

3 ... keyboard 4 ... motherboard

7 ... touch control type LCD screen 5 ... drain pan

8 ... CD-ROM device 9 ... Hard Disk Drive

10 ... portable computer 21 ... flanging

25 ... shed space 31 ... button

41 ... central processing unit 42 ... heat radiator

43 ... phoenix fan 51 ... opening

52 ... cap 53 ... air admission hole

54 ... metal forming 55 ... fenestra

56 ... shelf 57 ... the first side wall

58 ... second sidewall 59 ... the 3rd sidewall

60 ... the 4th sidewall 61 ... prominent edge

62

... fin

66,63 ... screw

64 ... circuit board 65 ... screw

67 inside surfaces

68,69 ... hold casket

Below in conjunction with accompanying drawing structure of the present utility model, technical characterictic are described further.

As shown in Figure 1, 2, portable computer 10 of the present utility model is from top to bottom by the plastic cement loam cake 1 of a local hollow out; One is fixed on the sheet metal 2 of loam cake 1 below; One is supported in keyboard 3 above the sheet metal 2 (or touch control type LCD screen 7, consult shown in Figure 5), and its button 31 (or touch control type LCD screen 7) exposes for operation from the hollow out of loam cake 1; One stands upside down up and down is installed in the following motherboard 4 of sheet metal 2, consist predominantly of central processing unit (CPU) 41, memory body (me mory) on the motherboard 4, input/writing brush goes out of the port (I/Oport) and time set necessary circuit and electric devices such as (timer), and heat radiator 42 and phoenix fan 43 is housed below the central processing unit 41; And a drain pan 5 that is combined in loam cake 1 below, wall has an assembly room within drain pan 5 and the loam cake 1, to hold motherboard 4, sheet metal 2 and keyboard 3 (or touch control type LCD screen 7); In addition, CD-ROM device 8 and Hard Disk Drive 9 are housed on the drain pan 5.

According to portable computer heat radiation device of the present utility model, wherein drain pan 5 has an opening 51, opening 51 sizes contain the position of central processing unit 41 on motherboard 4, and utilized screw (scheming not shown) to be locked at cap 52 sealing of drain pan 5 by one, drain pan 5 comprises the air admission hole 53 that several forms are regardless of, these air admission hole 53 major parts are by the aluminium foil of a solid work at cap 52 inside surfaces, Copper Foil or other suitable metal forming 54 cover, only cut out the fenestra 55 of one side to central processing unit 41, directly extract drain pan 5 outside air for phoenix fan 43, the heat that central processing unit 41 distributes on heating radiator 42 is removed.So, need cause central processing unit 41 physical location on motherboard 4 from system design changes to some extent, also as long as making a kind of drain pan 5 just can satisfy the demands, solve the mould expense that prior art must be made the drain pan that the various inlet hole site is arranged, this design is very favourable for small requirements.In addition, because cap 52 is freely to load and unload from drain pan 5, so very convenient central processing unit 41, memory body, CD-ROM device 8 and the assembling of Hard Disk Drive 9 and being connected and arrangement of row's (leading) line help the sale of Barebone (bare bone ' is casing ten motherboards) simultaneously.

Need know that the air admission hole 53 beyond the main function of metal forming 54 is to cover under the central processing unit 41 prevents because of air admission hole 53 covering scopes are too big, the hot-air of discharge is sucked by phoenix fan 43 again and reduce radiating efficiency.

In addition, because the relation of air admission hole 53, can be increased in the difficulty of drain pan 5 inside surface application conductive paints, so itself electric conductivity is arranged promptly because of metal forming 54, so just do not needed the application conductive paint by the air admission hole 53 of metal forming 54 coverings, only there is the small part air admission hole 53 that is not covered to need application by a gold paper tinsel 54, owing to coating area significantly reduces, therefore many easily.

Again as shown in Figure 2, another pith of the utility model is, sheet metal 2 peripheries further are bent into flanging 21 downwards, the inside surface application conductive paint of drain pan 5 (this be portable computer or notebook computer during fabrication, necessary processing procedure for ground connection and conduction needs), sidewall upper expands outwardly and forms shelf 56 and (consult Fig. 1 above resting for flangings 21, shown in 4), make between drain pan 5 and sheet metal 2 shed space 25 is arranged, because this metallics of surface within the shed space 25, holding concurrently can't penetrating metal with electromagnetic wave, so can prevent the electromagnetic wave that produces when computer uses disengages outside the main frame, avoid human body contact electromagnetic wave, has electric conductivity because of sheet metal 2 simultaneously, so can be omitted in the processing procedure and the cost of loam cake 1 inside surface application conductive paint.Though air admission hole 53 is arranged on the drain pan 5, because of electromagnetic wave is a straight wave, must air admission hole 53 enough big electromagnetic waves just can penetrate, the size of these air admission holes 53 then is controlled in the scope that electromagnetic wave can't penetrate.In the embodiment of accompanying drawing, outer for connecting the usefulness that input/writing brushes go out equipment for making I/O port on the motherboard 4 expose drain pan 5, so drain pan 5 rears have the sidewall except that two ends, major part is breach and indifferent shelf; Relative, sheet metal 2 removes rear flanging 21 and is " 1 " shape, directly to rest within the drain pan 5 outside the surface, the place ahead, left and right-hand flanging 21 are " L " shape, and be supported in respectively drain pan 5 corresponding sides it " L " on the shape shelf 56.

In addition, as Fig. 3, shown in 5, the assembling of CD-ROM device 8 and Hard Disk Drive 9 for convenience, in preferred embodiment, the upwards vertical the first side wall 57 that extends of the inside surface 67 of drain pan 5, second sidewall 58, the 3rd sidewall 59 and the 4th sidewall 60, wherein the one one three sidewall 57-59 parallels, top margin is some prominent along 61 towards the direction horizontal-extending of adjacent wall, the 4th sidewall 60 is vertical with second sidewall 58, and with the first side wall 57 and prominent along the 61 appearance caskets 68 that a proper receivability CD-ROM device 8 arranged on drain pan 5 simultaneously the 4th sidewall 60 2 ends extend upward formation fin 62, one screw 63 is all arranged on each fin 62, screw in CD-ROM device 8 (consulting shown in Figure 1) for the screw 65 that passes circuit board 64 by the back, circuit board 64 2 faces all have a connector (scheming not shown), wherein a connector can directly be connected with CD-ROM device 8, another connector is for the usefulness that connects winding displacement, and this winding displacement other end then is connected to motherboard 4, CD-ROM device 8 can be reached with motherboard 4 be electrically connected.As for second sidewall 58, the 3rd sidewall 59 and prominently an appearance casket 69 that just can hold Hard Disk Drive 9 is arranged on drain pan 5 along 61, respectively there is a screw 66 in these appearance casket 69 4 corners, connect after supplying screw (scheming not shown) to pass and screw in the Hard Disk Drive 9 from drain pan 5 belows, so that Hard Disk Drive 9 is fixed on the drain pan 5, its situation is shown in Figure 5 as.

Certainly, the foregoing description can not break away under the scope of the present utility model in addition some variations, thus above explanation comprises and accompanying drawing shown in whole items should be considered as exemplary and non-limiting.

Claims

1, a kind of portable computer heat radiation and prevent the electromagnetic wave releasing device consists predominantly of:

The loam cake of one local hollow out;

One is fixed on the sheet metal below the loam cake;

One is supported in the keyboard (or touch control type LCD screen) above the sheet metal;

One stands upside down up and down is installed in motherboard below the sheet metal, and a drain pan that is combined in the loam cake below, and CD-ROM device and Hard Disk Drive are housed on the drain pan;

It is characterized in that drain pan comprises an opening, the size of opening contains the position of central processing unit on motherboard, and drain pan comprises several air admission holes, and most of air admission hole is covered in the metal forming of cap inside surface by a solid work, only stays a fenestra in the central processing unit position.

2, portable computer heat radiation according to claim 1 and prevent the electromagnetic wave releasing device, it is characterized in that: the sheet metal periphery is bent to form flanging downwards, the inside surface application conductive paint of drain pan, sidewall upper expands outwardly and forms above shelf rests for flanging, and making has a shed space with metallic interior surface between drain pan and the sheet metal.

3, portable computer heat radiation according to claim 1 and prevent the electromagnetic wave releasing device, it is characterized in that: upwards vertical the first side wall, second sidewall, the 3rd sidewall and the 4th sidewall of extending of drain pan inside surface, first, second and the 3rd sidewall parallel, the top is towards the some prominent edges of the direction horizontal-extending of adjacent wall, the 4th sidewall is vertical with second sidewall, and with the first side wall and prominent along the appearance casket that a proper receivability CD-ROM device is arranged on drain pan, the 4th sidewall two ends extend upward the formation fin simultaneously, and a screw is all arranged on each fin; Second sidewall, the 3rd sidewall and prominent along an appearance casket that just can hold Hard Disk Drive is arranged at drain pan, holding casket four corners respectively has a screw.