CN2510996Y

CN2510996Y - High-speed heat-conducting device with liquid-gas change-over

Info

Publication number: CN2510996Y
Application number: CN 01266118
Authority: CN
Inventors: 王天来
Original assignee: HUAFU SCIENCE-TECHNOLOGY Co Ltd
Current assignee: HUAFU SCIENCE-TECHNOLOGY Co Ltd
Priority date: 2001-10-24
Filing date: 2001-10-24
Publication date: 2002-09-11
Anticipated expiration: 2011-10-24

Abstract

The utility model discloses a high-speed heat conduction device with gas-liquid conversion, which is proposed for providing a computer component which can effectively improve heat dissipation efficiency, the utility model includes an upper plate, a lower plate, and a fan combined on the outer surface of the upper plate; the upper and the lower plates which are integrally formed by heat conduction materials using die forms compact combination condition; the corresponding surfaces of the upper and the lower plates are concavely arranged to be the internal concave of a closed hollow inner chamber, the internal concave is provided with the capillary structure of a capillary groove; the inner chamber can be filled with action liquid through the capillary groove, and the vacuumized filling hole is connected with the external; the outer surface of the upper plate is provided with a plurality of heat dissipation rectangular fins.

Description

The high speed heat-transfer device of tool liquid gas phase conversion

Technical field

The utility model belongs to machine element, particularly a kind of high speed heat-transfer device of tool liquid gas phase conversion.

Background technology

The frequency of computer cpu (CPU) is higher, the heat that is produced during its running is relatively higher, and the rising of temperature, the electronic building brick sensitivity of computer is reduced even influence its useful life, therefore, how to promote the usefulness of heat abstractor, then become the problem of a research with the normal operation of keeping CPU.

Cooling measure to CPU is too numerous to enumerate, haply having the heating panel of parallel fin, or cooperates setting with fan, can promote in the hope of the effect that makes heat radiation.

As shown in figure 13, the hot plate radiator of commonly using 60 is the top that places CPU thermal source 70, and collocation has a fan 80, to improve heat-sinking capability.This known radiator 60 is to be made by pressing method with heat-conducting, and its upper surface is formed with the radiating fin 62 of plurality of parallel to increase its area of dissipation.

Yet, the operating frequency of the CPU of a new generation has reached more than the G Hz, Pentium 4 processors as Intel (Intel) company new listing, the heat that is produced during its running far surpasses various processor in the past, so only applying in conjunction with the radiating mode of radiator 60 structures of fan 80 of commonly using used, in addition improved necessity is arranged in fact.

Summary of the invention

The purpose of this utility model provides a kind of high speed heat-transfer device of tool liquid gas phase conversion of effective raising radiating efficiency.

The utility model comprises upper plate, lower plate and is assembled in the fan of upper plate outer surface; Utilize mould to be intimate-association state with the integrated upper and lower plate of heat-conducting; Upper and lower plate apparent surface is arranged with the inner concave that constitutes airtight hollow interior chamber, is provided with capillary structure into capillary groove in inner concave; Inner room is filled action liquid and evacuated pack hole is in communication with the outside to use in it; The upper plate outer surface is provided with a plurality of radiating fins.

Wherein:

Being arranged at a plurality of radiating fins of upper plate outer surface is and is arranged in parallel.

Being arranged on the upper and lower plate inner concave capillary groove that constitutes capillary structure is and is arranged in parallel.

Be arranged at a plurality of radiating fins of upper plate outer surface and be radial arrangement.

Two diagonal of upper and lower plate inner concave separate into inner concave four above inner concave zones respectively; The inner concave zone is the isosceles triangle zone on base for outer ledge, forms a plurality of capillary structures perpendicular to inner concave zone outer ledge capillary groove respectively in each inner concave zone.

The cross section of capillary groove is rectangular.

The cross section of capillary groove is trapezoidal.

The cross section of capillary groove is triangular in shape.

Pack hole is arranged at the lower plate outer surface.

Pack hole is arranged at the upper plate outer surface.

Because the utility model comprises upper plate, lower plate and is assembled in the fan of upper plate outer surface; Utilize mould to be intimate-association state with the integrated upper and lower plate of heat-conducting; Upper and lower plate apparent surface is arranged with the inner concave that constitutes airtight hollow interior chamber, is provided with capillary structure into capillary groove in inner concave; Inner room is filled action liquid and evacuated pack hole is in communication with the outside to use in it; The upper plate outer surface is provided with a plurality of radiating fins.During use, the utility model is directly placed the top of CPU thermal source with its lower plate, when producing heat when the CPU running, heat can be sent to the utility model up according to the direction of arrow, so that the action liquid of filling in inner room flashes to steam and is full of inner room, owing to be arranged at the air flow heat radiation that upper plate outer surface radiating fin forms by fan, cause its temperature lower, so steam can be replied in the upper plate inner concave and is condensed into liquid state, and the action liquid that condenses can reflux towards thermal source by capillarity system.So, just can cooperate the principle of capillarity, heat energy can be conducted stow away from heat fast by the phase-state change circulation in inner room of action liquid; And by fan, the heat that is produced when CPU is operated follows heat dissipation direction and is able to arrange fast loose.Effectively improve radiating efficiency, thereby reach the purpose of this utility model.

Description of drawings

Fig. 1, be the utility model structural representation stereogram.

Fig. 2, be the utility model decomposition texture schematic isometric.

Fig. 3, be A-A cutaway view among Fig. 2.

Fig. 4, be B portion partial enlarged drawing among Fig. 3 (for rectangle groove capillary structure).

Fig. 5, be B portion partial enlarged drawing among Fig. 3 (for trapezoidal groove capillary structure).

Fig. 6, be B portion partial enlarged drawing among Fig. 3 (for triangular groove capillary structure).

Fig. 7, be the utility model structural representation stereogram (capillary groove perpendicular to inner concave zone outer ledge).

Fig. 8, be the utility model decomposition texture schematic isometric.

Fig. 9, be C-C cutaway view among Fig. 7.

Figure 10, be the upper and lower plate decomposition texture of the utility model schematic isometric (capillary groove perpendicular to inner concave zone outer ledge).

Figure 11, for the utility model structural representation stereogram (pack hole is arranged on the upper plate).

Figure 12, be the utility model action liquid action diagrammatic side view.

Figure 13, heat spreader structures schematic isometric for commonly using.

Embodiment

As Fig. 1, Fig. 2, shown in Figure 3, the high speed heat-transfer device 1 of the utility model tool liquid gas phase conversion comprises upper plate 10, lower plate 20 and fan 40.

Upper and

lower plate

10,20 is to utilize mould with heat-conducting, as heat conduction good metal or alloy one semisolid injection molding or die casts such as copper, magnesium, aluminium.Upper and

lower plate

10,20 facing surfaces are arranged with the inner concave 12,22 that constitutes airtight hollow interior chamber 30.

As shown in Figure 4, be the capillary structure that forms the square-section capillary groove 120,220 that is arranged in parallel on inner concave 12,22; As shown in Figure 5, be to form the trapezoid cross section capillary groove 120 ' of being arranged in parallel, 220 ' capillary structure on inner concave 12,22; As shown in Figure 6, on inner concave 12,22, be to form the triangular-section capillary groove 120 that is arranged in parallel ", 220 " capillary structure.

Be formed with a plurality of radiating fins 16 that are arranged in parallel that are in upper plate 10 outer surfaces 14.Lower plate 20 outer surfaces 24 are provided with the pack hole 26 that runs through.The making of type method can't be squeezed to commonly use by this structure system.

Upper and

lower plate

10,20 is to be assembled with welding, spot welding, ultrasonic waves or other combination modes of sticking to be intimate-association state, to form airtight hollow interior chamber 30.And fill the action liquid and it is evacuated to inner room 30 by the pack hole 26 of lower plate 20 outer surfaces 24; After filling an amount of action liquid in the inner room 30 and being evacuated, be about to pack hole 26 sealings.For the action liquid of filling is to have to meet the liquid that cold reduction characteristic is met in thermal evaporation, as pure water, methyl alcohol, toluene, propyl alcohol or refrigerant etc.Fan 40 is assembled in radiating fin 16 tops that upper plate 10 outer surfaces 14 form.

As Fig. 7, Fig. 8, Fig. 9, shown in Figure 10, the upper plate 10a outer surface 14a of the high speed heat-transfer device 1a of the utility model tool liquid gas phase conversion goes up and forms the radiating fin 16a that is radial arrangement, and in formation of radiating fin 16a central authorities and the corresponding assembling grove 160a of fan 40a, fan 40a is assembled among the assembling grove 160a of radiating fin 16a central authorities.

Respectively inner concave 12a, 22a are separated into four above inner concave zones 121a, 221a on two diagonal of upper and

lower plate

10a, 20a inner concave 12a, 22a.Inner concave zone 121a, 221a are that outer ledge is the isosceles triangle zone on base, form a plurality of capillary structures perpendicular to inner concave zone 121a, 221a outer ledge capillary groove 120a, 220a in inner concave zone 121a, 221a.

As shown in figure 11, using to inner room 30 of the high speed heat-transfer device 1b of the utility model tool liquid gas phase conversion filled the outer surface 14b that moves liquid and its evacuated pack hole 15b is arranged at upper plate 10b.

As shown in figure 12, during use, with the utility model with its lower plate 20 (20a, 20b) directly place the top of CPU thermal source 1A, when producing heat when the CPU running, because it is last, lower plate 10,20 (10a, 10b, 20a, be to make 20b) with heat-conducting, heat can be sent to the utility model up according to the direction of arrow, so that the action liquid of filling in the inner room 30 flashes to steam 1B and is full of inner room 30, owing to be arranged at upper plate 10 (10a, 10b) outer surface 14 (14a, 14b) radiating fin 16 dispels the heat by the air flow that fan 30 forms, cause its temperature lower, so steam 1B can be in upper plate 10 (10a, 10b) answer is condensed into liquid state in the inner concave 12, and the action liquid that condenses can reflux towards thermal source 1A by capillarity system.So, just can cooperate the principle of capillarity, heat energy can be conducted stow away from heat 1A fast by the phase-state change circulation in inner room 30 of action liquid; And by fan 40, the heat that is produced when CPU is operated follows heat dissipation direction 1D and is able to arrange fast loose.

Commonly using heat abstractor is that the mat heat exchange pattern is progressively diffused to heat energy radiating fin and arranged diffusing by thermal source, because the existence of diffusion thermal resistance, so not all radiating fin is the energy efficiently radiates heat all, the temperature distribution state of heat abstractor presents inhomogeneously in when running, and radiating efficiency is reduced.The utility model cooperates radiating fin by the phase-state change circulation of action liquid, and temperature distribution state is very even when running, and all radiating fins all can effectively be brought into play heat radiation, and can reach best radiating effect.

Claims

1, a kind of high speed heat-transfer device of tool liquid gas phase conversion, it comprises upper plate, lower plate and is assembled in the fan of upper plate outer surface; It is characterized in that the described mould that utilizes is intimate-association state with the integrated upper and lower plate of heat-conducting; Upper and lower plate apparent surface is arranged with the inner concave that constitutes airtight hollow interior chamber, is provided with capillary structure into capillary groove in inner concave; Inner room is filled action liquid and evacuated pack hole is in communication with the outside to use in it; The upper plate outer surface is provided with a plurality of radiating fins.

2, the high speed heat-transfer device of tool liquid gas phase according to claim 1 conversion is characterized in that the described a plurality of radiating fins of upper plate outer surface that are arranged at are and are arranged in parallel.

3, the high speed heat-transfer device of tool liquid gas phase according to claim 1 conversion is characterized in that the described capillary groove that constitutes capillary structure on the upper and lower plate inner concave that is arranged at is and is arranged in parallel.

4, the high speed heat-transfer device of tool liquid gas phase conversion according to claim 1 is characterized in that the described a plurality of radiating fins of upper plate outer surface that are arranged at are radial arrangement.

5, the high speed heat-transfer device of tool liquid gas phase according to claim 1 conversion is characterized in that respectively inner concave being separated into four above inner concave zones on two diagonal of described upper and lower plate inner concave; The inner concave zone is the isosceles triangle zone on base for outer ledge, forms a plurality of capillary structures perpendicular to inner concave zone outer ledge capillary groove respectively in each inner concave zone.

6, according to the high speed heat-transfer device of claim 3 or 5 described tool liquid gas phase conversions, it is characterized in that the cross section of described capillary groove is rectangular.

7, according to the high speed heat-transfer device of claim 3 or 5 described tool liquid gas phase conversions, it is characterized in that the cross section of described capillary groove is trapezoidal.

8, according to the high speed heat-transfer device of claim 3 or 5 described tool liquid gas phase conversions, it is characterized in that the cross section of described capillary groove is triangular in shape.

9, the high speed heat-transfer device of tool liquid gas phase conversion according to claim 1 is characterized in that described pack hole is arranged at the lower plate outer surface.

10, the high speed heat-transfer device of tool liquid gas phase conversion according to claim 1 is characterized in that described pack hole is arranged at the upper plate outer surface.