CN2742577Y - Radiator and its cooling fins - Google Patents

Abstract

A heat sink and its heat radiation fin, the heat sink includes multiple heat radiation fins and heat pipe connecting the heat radiation fins in series, wherein, the heat radiation fin has a plate body, at least one through hole is opened on the fin body, the through hole is composed of at least two arcs with different radius. The bottom edge of the fin body is provided with a groove corresponding to the through hole; the surface of the heat pipe is coated with a heat conducting medium and is provided with a heat absorbing part and a heat radiating part. The outer edge of one side of the heat absorbing part is correspondingly matched with the shape of the groove of each fin, and the outer edge of one side of the heat radiating part is matched with an arc of the through hole; therefore, the heat-conducting medium can be uniformly distributed between the heat-radiating fins and the heat pipe, and the heat-conducting effect and the heat-radiating efficiency of the whole radiator are improved.

Description

Radiator and radiating fin thereof

Technical field

The utility model relates to a kind of radiator and radiating fin thereof, relate in particular on a kind of microprocessor or heat generating component that is arranged on computer, heat-conducting medium is evenly distributed between radiating fin and the heat pipe, improves the whole thermal conduction effect and the radiator and the radiating fin thereof of radiating efficiency.

Background technology

Progress along with Information technology and computer industry, the caloric value of electronic building brick such as central processing unit chip, internal memory is more and more high, and size is more and more little, for the heat that this is intensive effectively is distributed in the outer environment of computer system, keep the following operation of electronic building brick in permissive temperature, the radiating fin that will have big base area usually is installed on the electronic building brick surface of heating, or increases its overall radiating efficiency by the rotating speed that increases radiator fan; Thus, will derive relevant issues such as noise, weight, cost and system complexity, make that each above-mentioned scheme is not to solve electronic building brick heat radiation good plan.

This area is aspect the heat radiation of electronic building brick at present, utilize heat pipe to have characteristics such as high capacity of heat transmission, flash heat transfer, high thermoconductivity, in light weight, simple in structure and multipurpose, can transmit a large amount of heat and not consume electric power, therefore be fit to very much the radiating requirements of electronic product; Therefore with heat pipe in conjunction with the formed heat-pipe radiator of radiating fin, become the important topic that solves heat radiation.

Known heat-pipe radiator structure as shown in Figure 1, mainly includes a plurality of radiating fin 10a and two heat pipe 20a.Radiating fin 10a has an en plaque fin body 11a, centre at fin body 11a offers two circular through hole 12a, two heat pipe 20a insert respectively among the two through hole 12a, and between the through hole 12a of each heat pipe 20a and radiating fin 10a, be coated with heat-conducting medium 30a, thus, can be combined into a heat-pipe radiator.

Yet, above-mentioned known heat-pipe radiator structure, because the through hole 12a of each radiating fin 10a is a circular port, after heat-conducting medium 30a is coated in the outer peripheral edge of each heat pipe 20a, when each heat pipe 20a being inserted the through hole 12a of fin body 11a again, in the process of assembling, heat-conducting medium 30a is struck off by the inwall of through hole 12a, make the outer rim of each heat pipe 20a and the inner edge of through hole 12a produce a large amount of slits, thereby reduce the thermal conduction effect and the radiating efficiency of this heat-pipe radiator.For the through hole 12a that makes radiating fin 10a easily is connected in series by heat pipe 20a, certainly will to strengthen the inner edge radius of through hole 12a, but when the outer rim shape difference of the inner edge shape of through hole 12a and heat pipe 20a when excessive, with the contact area of heat pipe 20a and each radiating fin 10a is more reduced, thermal conduction effect is more reduced.

The design people is in view of the defective that exists in the above-mentioned prior art, rely on the sector experience for many years of being engaged in, at carrying out improved defective, through concentrating on studies and cooperating actual utilization, in line with excelsior spirit, propose a kind of reasonable in design and effectively improve the utility model of above-mentioned defective finally.

Content of the present utility model

Main purpose of the present utility model is to provide a kind of radiator and radiating fin thereof, it is when radiating fin and heat pipe are connected, be easy to heat pipe is arranged in the through hole of radiating fin, and heat-conducting medium can be evenly distributed between radiating fin and the heat pipe, improve the thermal conduction effect and the radiating efficiency of integral heat sink device.

To achieve these goals, the utility model provides a kind of radiator and radiating fin thereof, and this radiator comprises:

A plurality of radiating fins, this radiating fin has a body, offers at least one through hole on each fin body, this through hole is made of at least two different circular arcs of radius size, a side of this fin body be provided with one with the corresponding groove of through hole; And

At least one heat pipe, surface-coated has heat-conducting medium, and be serially connected in respectively on this radiating fin, this heat pipe has an endothermic section and a radiating part, one side outer rim of this endothermic section matches with the groove shapes of this fin respectively, and a side outer rim of radiating part matches with a circular arc of described through hole, thereby realizes above-mentioned purpose.

Radiator of the present utility model and radiating fin thereof are easy to heat pipe is arranged in the through hole of radiating fin, and heat-conducting medium can be evenly distributed between radiating fin and the heat pipe, improve the thermal conduction effect and the radiating efficiency of integral heat sink device.

Brief description of drawings

Fig. 1 is the constitutional diagram of known radiating fin and heat pipe;

Fig. 2 is the stereogram of the radiating fin of the utility model embodiment;

Fig. 3 is the front view of the radiating fin of the utility model embodiment;

Fig. 4 is the radiating fin of the utility model embodiment and the three-dimensional exploded view of heat pipe;

Fig. 5 is the radiating fin of the utility model embodiment and the assembling schematic diagram () of heat pipe;

Fig. 6 is the radiating fin of the utility model embodiment and the assembling schematic diagram (two) of heat pipe;

Fig. 7 is the radiating fin of the utility model embodiment and the constitutional diagram of heat pipe.

In the accompanying drawing, the list of parts of each label representative is as follows:

The 10a-radiating fin

11a-fin body 12a-through hole

The 20a-heat pipe

The 30a-heat-conducting medium

The 10-radiating fin

11-fin body 12-through hole

121-large radius arc 122-small-radius arc

The 123-first flange 13-groove

131-second flange

The 20-heat pipe

21-endothermic section 22-radiating part

The 30-heat-conducting medium

Embodiment

In order to make those skilled in the art further understand feature of the present utility model and technology contents, see also following about detailed description of the present utility model and accompanying drawing, accompanying drawing only provide with reference to and usefulness is described, be not to be used for limiting the utility model.

Fig. 2 and Fig. 3 are respectively the stereogram and the front view of the utility model radiating fin.The utility model provides a kind of radiator and radiating fin thereof, and as shown in Figures 2 and 3, this radiator includes a plurality of radiating fins 10 and at least one heat pipe 20 (as shown in Figure 4), wherein:

Radiating fin 10 is made by aluminium, copper or other heat conductivility good metal material, it has an en plaque fin body 11, on fin body 11, offer at least one through hole 12, present embodiment offers four through holes, and through hole 12 is made of at least two different circular arcs 121,122 of radius size.Large radius arc 121 is positioned at the below place of small-radius arc 122, and the top peripheral region of small-radius arc 122 extends forward and is provided with one first flange 123; The root edge of fin body 11 be provided with one with through hole 12 corresponding semi-circular recesses 13, have four grooves in the present embodiment, extend forward respectively at the peripheral region of each groove 13 and be provided with one second flange 131.

Fig. 4 is the three-dimensional exploded view of the utility model radiating fin and heat pipe.As shown in Figure 4, wherein, on each radiating fin 10 that heat pipe 20 is serially connected in, and its inside has capillary structure and working fluid.Heat pipe 20 has an endothermic section 21 and a radiating part 22, the upper limb of endothermic section 21 matches with groove 13 shapes of each fin 10, the outer rim geomery of radiating part 22 is less than the inner edge geomery of through hole 12, and its upper limb shape matches with small-radius arc 122 shapes of through hole 12.

Fig. 5, Fig. 6 and Fig. 7 are respectively assembling schematic diagram (), (two) and the constitutional diagram of the utility model radiating fin and heat pipe.As Fig. 5, Figure 6 and Figure 7, when assembling, earlier each radiating fin 10 is combined into a radiating fin group, evenly apply an amount of heat-conducting medium 30 in the endothermic section 21 of each heat pipe 20 and the upper limb place of radiating part 22 again, and the two ends of each heat pipe 20 are inserted in the through hole 12 and groove 13 of radiating fin 10, each heat pipe 20 moves up, the upper limb of endothermic section 21 of heat pipe 20 and the groove 13 of radiating fin 10 are fitted mutually, simultaneously, the small-radius arc 122 of the upper limb of the radiating part 22 of heat pipe 20 and through hole 12 is fitted mutually.Because the inner edge geomery of through hole 12 is greater than radiating part 22 geomeries of heat pipe 20, make heat pipe 20 in the serial connection process, can't produce heat-conducting medium 30 is struck off by the inner edge wall of through hole 12, and easily heat pipe 20 is serially connected in the through hole 12 of each radiating fin 10, and can effectively solve the bad phenomenon of known contact area, so that heat-conducting medium 30 can be evenly distributed between each radiating fin 10 and the heat pipe 20, thereby the heat that can significantly improve radiator integral passes effect and radiating efficiency.

In sum, radiator of the present utility model and radiating fin thereof have practicality, novelty and creativeness, and structure of the present utility model also never sees like product and public use, more do not publish before the application on any publication, meet the requirement of utility application fully, file an application according to Patent Law.

The above only is a preferred embodiment of the present utility model, be not so promptly limit claim of the present utility model, the equivalent structure transformation that every utilization the utility model specification and accompanying drawing content are done, directly or indirectly be used in other relevant technical field, all in like manner be included in the claim of the present utility model.

Claims (10)

1. a radiator is characterized in that, comprising:

A plurality of radiating fins, described radiating fin has a body, offer at least one through hole on each described fin body, described through hole is made of at least two different circular arcs of radius size, a side of described fin body be provided with one with the corresponding groove of described through hole; And

At least one heat pipe, surface-coated has heat-conducting medium, and be serially connected on each described radiating fin, described heat pipe has an endothermic section and a radiating part, one side outer rim of described endothermic section matches with the groove shapes of each described fin, and a side outer rim of radiating part matches with a circular arc of described through hole.

2. radiator as claimed in claim 1 is characterized in that the large radius arc of described through hole is positioned at the below of small-radius arc.

3. radiator as claimed in claim 1 is characterized in that locating to extend forward above described through hole and is provided with first flange.

4. radiator as claimed in claim 1 is characterized in that periphery at described groove extends forward to be provided with second flange.

5. radiator as claimed in claim 1 is characterized in that described inside heat pipe has capillary structure and working fluid.

6. radiator as claimed in claim 1 is characterized in that the inner edge geomery of the radiating part outer rim geomery of described heat pipe less than described through hole.

7. radiating fin, it is characterized in that described radiating fin has a body, on described fin body, offer at least one through hole, described through hole is made of at least two different circular arcs of radius size, a side of described fin body be provided with one with the corresponding groove of through hole.

8. radiating fin as claimed in claim 7 is characterized in that the large radius arc of described through hole is positioned at the below of small-radius arc.

9. radiating fin as claimed in claim 7 is characterized in that locating to extend forward above described through hole and is provided with first flange.

10. radiating fin as claimed in claim 7 is characterized in that periphery at described groove extends forward to be provided with second flange.

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