CN100459839C

CN100459839C - Support column with porous structure

Info

Publication number: CN100459839C
Application number: CNB200610080172XA
Authority: CN
Inventors: 萧惟哲
Original assignee: Inventec Corp
Current assignee: Inventec Corp
Priority date: 2006-05-10
Filing date: 2006-05-10
Publication date: 2009-02-04
Anticipated expiration: 2026-05-10
Also published as: CN101072490A

Abstract

The disclosed support column is setup in the chamber with working fluid being filled in. the chamber possesses opposite evaporating surface and condensing surface inside in use for vaporizing working fluid into gas, and condensing gas into fluid. The support column with porous structure includes following parts: the support main body with two ends being connected to the said evaporating surface and condensing surface; the porous structure arranged on surface of the support column is supported by the support main body; the porous structure carries working fluid, and the phase circulation of the working fluid makes the chamber possess function for dissipating quantity of heat. The support column with porous structure supports the porous structure firmly, and prevents the porous structure from damaging, and also supports the chamber to prevent the chamber from deforming caused by force. Moreover, the invention also promotes efficacy of radiator for dissipating quantity of heat.

Description

Support column with loose structure

Technical field

The invention relates to a kind of support column, particularly about a kind of support column with loose structure, it is located at one and is filled with in the chamber of working fluid, is used to guide working fluid cycles to dispel the heat.

Background technology

G.M.Grover had invented hot pipe technique in 1963, heat pipe belongs to a kind of heat transfer element, it has made full use of heat-conduction principle and refrigeration filling transmits hot character fast, by in the evaporation of Totally enclosed vacuum liquid in pipe with condense the transmission heat, but the heat transfer area with thermal conductivity height, cold and hot both sides can change advantages such as remotely transferring, temperature controllable arbitrarily, and by the heat exchanger that heat pipe is formed have heat transfer efficiency height, compact conformation, advantages such as little are decreased in the fluid resistance, the capacity of heat transmission of heat pipe far surpasses the capacity of heat transmission of any known metal.

In recent years, because central processing unit (CPU) usefulness of computer constantly promotes, operating voltage is also along with the lifting of usefulness is increased, yet also increased the generation of heat simultaneously, therefore the rotating speed that must strengthen radiator fan quickens heat extraction, improve radiating efficiency but one increases radiating fan rotation speed ignorantly, can increase the burden of power supply unit and the noise of generation.

There is the people that hot pipe technique is applied on the heat abstractor of central processing unit (CPU) for this reason.As shown in Figure 1, be provided with a chamber 10 in this radiator 1, this radiator 1 has a cryosurface 11 and evaporating surface 12, be provided with a radiating fin 13 at this cryosurface 11, and connect the heater element 14 that is equipped with just like central processing unit at this evaporating surface 12, in this chamber 10, be filled with the working fluid of high expansion coefficient, and in this chamber 10, be provided with many cylinders 15 between corresponding two inner faces, this cylinder 15 is to be formed with cellular by powder sintered forming, and adsorbable working fluid also produces capillarity.

When these heater element 14 operations produce heat, the evaporating surface 12 that this cylinder 15 is positioned at heater element 15 begins heat absorption, working fluid is heated flashes to gas, thereby drive the working fluid that this cylinder 15 is positioned at radiating fin 13 cryosurfaces 11 and transmit to the evaporating surface 12 that is heated, the working fluid that becomes gas then flow to cryosurface 11 round about and condensation becomes liquid, and by cylinder 15 is adsorbed and to the evaporating surface transmission, so repetitive cycling is dispelled the heat.

Though utilize heat pipe principle can promote the radiating efficiency of radiator 1, this cylinder 15 is easy to generate aging phenomenon of peeling off under the situation of long-term absorption and transmission working fluid, thereby causes the damage of structure.

Cylinder 15 is to form with powder sintered, so the support strength deficiency, and when radiator 1 was subjected to external force and causes chamber 10 slightly distortion to be arranged, cylinder 15 was easy to impaired breaking-up.

Moreover when this radiator 1 expanded by heating, this chamber 10 also is compressed along with expansion causes this cylinder 15, gets off for a long time, also can destroy the structure of cylinder 15, influences the ability of the capillarity of this cylinder 15.

Therefore, how improving above-mentioned various shortcoming, is the problem that needs to be resolved hurrily.

Summary of the invention

For overcoming the disappearance of above-mentioned prior art, main purpose of the present invention is to provide a kind of support column with loose structure that improves support strength.

Another purpose of the present invention is to provide a kind of support column with loose structure, has the capillary ability of dispelling the heat.

Take off purpose on reaching, the invention provides a kind of support column with loose structure, being located at one is filled with in the chamber of working fluid, have relative evaporating surface and cryosurface in this chamber, this working fluid is evaporated to gas and is liquid this condensation of gas, this support column with loose structure comprises: supporting body, two ends connect respectively and place this evaporating surface and cryosurface; And loose structure, be laid in this supporting body the surface, be subjected to the support of this supporting body, this loose structure transmits working fluid, by the circulation mutually of this working fluid, makes this chamber have the function of dissipation heat.

This chamber is located in the radiator, and the cryosurface of this chamber is provided with a radiating fin, and this evaporating surface connects puts a heater element.The working fluid of this chamber filling is low-boiling liquid, and being easy to evaporation becomes gas, make working fluid by the heat absorption of this evaporating surface after, flow to this cryosurface after flashing to steam.

This supporting body is solid cylinder or hollow cylinder, and this loose structure can be a various ways, such as with the powder sintered surface that forms and be formed at this supporting body; This supporting body surface is formed with many grooves again, or at this supporting body surface clad net, around arranging many wire, and these wires collocation have spiral helicine fastener, and this wire is fixed on this supporting body surface also or on this supporting body surface.

Compared with prior art, the present invention has the support column of loose structure, supports this loose structure by this supporting body, can avoid this loose structure impaired because of external force, and this supporting body can support this chamber, avoids this chamber stressed and be out of shape.

As from the foregoing, the support column with loose structure of the present invention can firmly support this loose structure, reduces the impaired possibility of loose structure, and has the effect of promoting radiator dissipation heat energy.

Description of drawings

Fig. 1 is the existing radiator of using hot pipe technique;

Fig. 2 A is the schematic diagram that the present invention is applied in a radiator;

Fig. 2 B is the sectional view of the embodiment of the invention 1;

Fig. 3 is the top view of the embodiment of the invention 2;

Fig. 4 is the end view of the embodiment of the invention 3;

Fig. 5 A and Fig. 5 B are the top view and the end views of the embodiment of the invention 4; And

Fig. 6 is the top view of the embodiment of the invention 5.

Embodiment

Embodiment 1

See also Fig. 2 A, it is to be provided with a chamber 22 in a radiator 2, this chamber 22 has a cryosurface 220 and evaporating surface 221, be provided with a radiating fin 23 at this cryosurface 220, at this evaporating surface 221 and connect the heater element 24 that is equipped with just like central processing unit, in this chamber 22, be filled with low-boiling working fluid, when these heater element 24 operations produce heat, heating this working fluid makes it become gas, and dispel the heat by radiating fin, condensation of gas is become liquid, and the variation that is produced phase by this working fluid is dispelled the heat.

Support column 25 with loose structure of the present invention comprises: supporting body 250, two ends connect respectively and place this evaporating surface 220 and cryosurface 221; And loose structure 251, be laid in this supporting body 250 the surface, be subjected to the support of this supporting body 250, this loose structure 251 transmits working fluids, by the circulation mutually of this working fluid, makes this chamber 22 have the function of dissipation heat.

Support column 25 with loose structure of the present invention is provided in a side of in this chamber 22, and the two ends that make this support column 25 connect respectively puts at this evaporating surface 221 and cryosurface 220, this support column 25 is to be formed with loose structure 251 on the surface of supporting body 250, this loose structure 251 is supported by this supporting body 250, and can provide capillarity by the porous character of this loose structure 251, transmit this working fluid; Shown in Fig. 2 B, in the support column 25 with loose structure 251 of the present invention, this loose structure 251 is to form with powder sintered, be formed on the surface of this supporting body 250, this supporting body 250 can be a solid cylinder supporting this loose structure 251, or this supporting body 250 can be hollow cylinder (not marking in the accompanying drawing).

Embodiment 2

See also Fig. 3, it is the schematic diagram with support column embodiment 2 of loose structure of the present invention, present embodiment 2 difference from Example 1 are, supporting body 250 surfaces of this support column 25 are formed with many groove 250a, and the section of this groove 250a is triangular in shape, maybe can be other shape of being convenient to shape, as rectangle.

Embodiment 3

See also Fig. 4, it is the schematic diagram with support column embodiment 3 of loose structure of the present invention, present embodiment 3 is that with the foregoing description difference the loose structure of this support column 25 is wire nettings 252, can provide capillarity by fine and closely woven eyelet equally.

Embodiment 4

See also Fig. 5 A and Fig. 5 B, it is the schematic diagram with support column embodiment 4 of loose structure of the present invention, being of present embodiment with the foregoing description difference, the loose structure of this support column 25 is around the many wire 253 that are arranged in these supporting body 251 surfaces, and collocation has spiral helicine fastener 254, this wire 253 is fixed on the surface of this supporting body 251, can constitutes the characteristic of porous, can realize above-mentioned effect equally by the fine and closely woven gap between this wire 253.

Embodiment 5

See also Fig. 6, it is the schematic diagram with support column embodiment 5 of loose structure of the present invention, the loose structure of present embodiment 5 is to be combined by embodiment 2 and embodiment 4, just the surface of this supporting body 250 is formed with many groove 250a, and this groove 250a is provided with wire 253, with spiral helicine fastener 254 these wires 253 are fixed among these grooves 250a again, locate this wire 253 by this groove 250a, and the hole quantity that also can increase loose structure is to promote capillarity.

Be located at the support strength deficiency that is used for the capillarity cylinder in the radiator chamber in the prior art, be damaged easily, compared with prior art, support column with loose structure of the present invention supports this loose structure with supporting body, avoid this loose structure impaired because of external force, this supporting body also supports this chamber, avoids chamber to be out of shape because of stressed.

And various loose structures all are located at the surface of this supporting body, rather than are incorporated into this cryosurface and evaporating surface, even therefore this radiator expanded by heating, this loose structure can be not impaired because of the dilatancy of chamber yet.

Moreover, by the support of supporting body, the support column of the present invention multiple loose structure of can arranging in pairs or groups, and different loose structures combination collocation in addition can be able to be obtained better capillarity.

As from the foregoing, the support column with loose structure of the present invention can firmly support loose structure, reduce the impaired possibility of loose structure, and can have preferable capillarity by the combination collocation of different loose structures, therefore possess the effect of promoting radiator dissipation heat.

Claims

1. support column with loose structure, be located at one and be filled with in the chamber of working fluid, have relative evaporating surface and cryosurface in this chamber, make working fluid be evaporated to gas respectively and be liquid condensation of gas, it is characterized in that this support column with loose structure comprises:

Supporting body, two ends connect respectively and place this evaporating surface and cryosurface; And

Loose structure, be laid in this supporting body the surface, be subjected to the support of this supporting body, this loose structure transmits working fluid, by the circulation mutually of this working fluid, makes this chamber have the function of dissipation heat.

2. the support column with loose structure as claimed in claim 1 is characterized in that this supporting body is hollow or solid cylinder.

3. the support column with loose structure as claimed in claim 1 is characterized in that this loose structure forms with powder sintered.

4. the support column with loose structure as claimed in claim 1 is characterized in that, this supporting body surface also comprises many grooves.

5. the support column with loose structure as claimed in claim 4 is characterized in that the section of this groove is triangular in shape or rectangle.

6. the support column with loose structure as claimed in claim 1 is characterized in that, this loose structure is a wire netting.

7. the support column with loose structure as claimed in claim 1 is characterized in that, this loose structure is the many wire that are arranged around this supporting body surface, and the collocation spiral helicine fastener is arranged, this wire is fixed on this supporting body surface.

8. the support column with loose structure as claimed in claim 7 is characterized in that, this supporting body surface is provided with many grooves of annular arrangement, is used for being provided with respectively these wires.

9. the support column with loose structure as claimed in claim 8 is characterized in that the section of this groove is triangular in shape or rectangle.

10. the support column with loose structure as claimed in claim 1 is characterized in that, this chamber is provided in a side of in the radiator, is provided with a radiating fin at the cryosurface of this chamber, and this evaporating surface connects puts a heater element.