CN103458653A

CN103458653A - Radiator

Info

Publication number: CN103458653A
Application number: CN2012101817947A
Authority: CN
Inventors: 陈恒隆; 林义坤
Original assignee: DONGGUAN YONGTENG ELECTRONIC PRODUCT Co Ltd
Current assignee: DONGGUAN YONGTENG ELECTRONIC PRODUCT Co Ltd
Priority date: 2012-06-04
Filing date: 2012-06-04
Publication date: 2013-12-18

Abstract

The invention relates to a radiator which comprises cooling fins, a heat sink and a fan. The heat sink which can be attached to a heating source on a circuit board in an abutting mode is arranged below the multiple cooling fins. A heat dissipation channel is formed between every two adjacent fins. At least two guide sheets, namely the first guide sheet and the second guide sheet extend obliquely upward from a board above each fin, wherein a preset inclination angle is formed between the first guide sheet and the second guide sheet in opposite directions. The fan is positioned above the fins. When the fan operates to blow axial wind onto the cooling fins, the first guide sheets and the second guide sheets on the fins are made to face the axial wind generated by the fan to enhance the windward effect so as to lower the wind resistance of the fins, reduce the noise generated during the blowing by the fan, and increase the air volume in the heat dissipation channels. Therefore, heat energy can be quickly taken out and diffused, and the overall heat dissipation effect is better.

Description

Heat abstractor

Technical field

The invention provides a kind of heat abstractor, espespecially upward the stretching in a plurality of fin upper plate faces place of fin has the first fairlead and the second fairlead that is rightabout pre-determined tilt angle, and toward the axial flow wind of fan, reduce the noise of generation to reduce its windage, air quantity is increased and radiating effect is more good.

Background technology

Computer technology is grown up with the speed of making rapid progress now, make the computer development trend all strong towards calculation function, the fast direction of speed strides forward, the application relevant along with computer trends towards high speed development, also make central processing unit, the temperature that image processor etc. produce when processing computing is higher, therefore work at the temperature that will how to utilize good cooling system that computer is allowed at it, by industry, be considered as very important problem, and the universalness in response to computer, its cooling system is for reaching preferably radiating efficiency and manufacturing cost, just must allow the fin of fin do a variation and make to manufacture instinct effectively to reduce.

Moreover, the current general way of industry, that fin is supported to the pyrotoxin be affixed on circuit board (as central processing unit, image processor, wafer etc.), and after being positioned on fin by fan, just fan and fin collocation can be formed to optimized radiator structure, refer to shown in Fig. 8, three-dimensional exploded view for existing fin, can know and find out in figure, the fin A used now is mostly one-body molded (as aluminium extruded type, molded and shaped) made, its fin A is upwards stood interruption-like a plurality of fin A2 is arranged by pedestal A1, and the arrangement mode of fin A2 is for being an even curface, and fan C is installed in the smooth location, upper surface place of fin A2, again fin A is installed on circuit board B, and make pedestal A1 to being affixed on wafer B1 upper surface, be beneficial to conduct wafer B1 heat energy to fin A, yet when fan C running blows axial flow wind, its axial flow wind is to blow with spiral mode down, and the wind after heat exchange can outwards be overflowed by formed passage between adjacent fin A2, but because of the pedestal A1 of fin A and wafer B1 support paste in the middle of part to absorb heat energy more, and heat energy is conducted around pedestal A1 and a plurality of fin A2, so that the fin A2 of its pedestal A1 centre can absorb heat energy faster than the fin A2 located on every side, make heat hoard in the centre of fin A, integral heat sink area and the radiating effect that can't effectively bring into play fin A are also poor.

In addition, it is in order to increase whole area of dissipation that fin A sets up a plurality of fin A2 on pedestal A1, and the requirement that pedestal A1 is limited on area will make the setting of a plurality of fin A2 more intensive, therefore, the fan C running axial flow wind blowed downwards that produces just can be affected and the tunnel-shaped that can't enter smoothly between adjacent fin A2 becomes windage, and produce great noise, and because the upper surface of fin A2 is smooth contour design, while causing axial flow wind to blow, constant speed concentrates on the centre of a plurality of fin A2, only can be dispelled the heat to the part of fin A, make heat energy will hoard in the centre of fin A, cause the not good disappearance of radiating efficiency and can't effectively dispel the heat.

Therefore the real place, space with improvement of above-mentioned existing fin, and remain to be engaged in this journey dealer, redesign effectively and solved.

Summary of the invention

Therefore, the inventor is because problem and the disappearance that existing heat abstractor is used, be collect related data via assessment in many ways and consider, and utilize the many years of experience of engaging in the industry by constantly studying and revising, begin to design this kind of heat abstractor patent of invention and be born.

Main purpose of the present invention is upward the first fairlead and the second fairlead that has at least two to be rightabout pre-determined tilt angle of stretching in a plurality of fin upper plate faces place of fin, and be formed with heat dissipation channel between each adjacent fin, when the fan running at fin top place, the axial flow wind that can produce toward fan by the first fairlead on fin and the second fairlead increases effect windward, the noise that when to reduce its windage, reducing fan and blow, irregular disturbance is produced, and the stability while guaranteeing fan running, and the air quantity in heat dissipation channel is increased, pyrotoxin on auxiliary circuit board is taken the heat energy of hoarding fast out of to arrange to outside and is fallen apart thus, and then make whole radiating effect more good.

Secondary objective of the present invention is that fin is positioned at place, fin top and is formed with the accommodation space that is recess, and be positioned with fan in accommodation space, and fan is the first fairlead and the place, the second fairlead top be aligned with on fin, when the pyrotoxin of circuit board operates, the contact-making surface of the radiating seat bottom that can establish by place, fin below supports and is affixed on the pyrotoxin surface on circuit board, and heat energy is conducted to fast on a plurality of fins and increases area of dissipation, also can be arranged on radiating seat and fin and carry out the heat exchange action by heat pipe, rely on fan to blow axial flow wind to auxiliary heat dissipation sheet on a plurality of fins downwards dispels the heat simultaneously fast.

For reaching above-mentioned purpose, the invention provides a kind of heat abstractor, include fin, radiating seat and fan, wherein this fin has a plurality of fins of the shape that is distributed in distance, and be provided with to the lip-deep radiating seat of pyrotoxin be affixed on the preinstalled circuit plate in place, fin below, fin top place is positioned with at least one fan, and is blowed and coolingly dispelled the heat to fin with axial flow wind by fan running, wherein:

Be formed with heat dissipation channel between each adjacent fin of this fin, and in fin upper plate face place all upward the first fairlead and the second fairlead that has at least two to be rightabout pre-determined tilt angle of stretching, the axial flow wind that the first fairlead on fin and the second fairlead are produced toward fan increases effect windward, reduce when fan blows to reduce its windage the noise produced, and air quantity is increased, heat energy is taken out of fast to arrange to outside thus and fallen apart.

Described heat abstractor, wherein, this fin is positioned at place, fin top and is formed with the accommodation space that at least one is recess, and is positioned with this fan in accommodation space, and fan is aligned with the first fairlead and place, the second fairlead top on fin.

Described heat abstractor, wherein, the junction of the first fairlead of this fin and the second fairlead both sides and fin upwards is formed with respectively the connecting portion that is the flaring shape, and connecting portion is a connecting piece, holes or profile groove.

Described heat abstractor, wherein, the place, fin below of this fin is provided with and supplies radiating seat in conjunction with between the ，Bing Yu docking section, docking section of locating and radiating seat, being equipped with at least one heat pipe, and heat pipe is arranged on fin and is combined into one away from the opposite side place of docking section.

Described heat abstractor, wherein, this fan includes pedestal and flabellum body, and pedestal directly is positioned on fin, or below pedestal, locates to utilize framework to be positioned on fin.

Described heat abstractor, wherein, this fan outside covers and is positioned with cover plate, and is provided with at least one open-work corresponding to flabellum body place on cover plate.

The invention has the beneficial effects as follows: by increasing effect windward, reduce when fan blows to reduce windage the noise produced, and air quantity is increased, heat energy is taken out of fast to arrange to outside thus and fallen apart.

The accompanying drawing explanation

Fig. 1 is stereo appearance figure of the present invention;

Fig. 2 is three-dimensional exploded view of the present invention;

The three-dimensional exploded view that Fig. 3 is another visual angle of the present invention;

The three-dimensional exploded view that Fig. 4 is fin of the present invention;

Fig. 5 is side cutaway view of the present invention;

The three-dimensional exploded view that Fig. 6 is preferred embodiment of the present invention;

Fig. 7 is the schematic diagram of fan of the present invention when fin is blown;

Fig. 8 is the three-dimensional exploded view of existing fin.

Description of reference numerals: 1-fin; The 10-accommodation space; The 11-fin; The 110-heat dissipation channel; 111-the first fairlead; 112-the second fairlead; The 113-connecting portion; The 114-conjugate foramen; The 115-lockhole; The 116-screw; The 12-docking section; The 121-clamping slot; The 2-radiating seat; The 21-contact-making surface; The 22-junction surface; The 221-location notch; The 3-fan; The 31-pedestal; The 311-through hole; The 312-screw; 32-flabellum body; The 33-framework; The 331-lockhole; The 332-side plate; The 333-perforation; The 34-cover plate; The 341-open-work; The 4-heat pipe; The 5-circuit board; The 51-pyrotoxin; The A-fin; The A1-pedestal; The A2-fin; The B-circuit board; The B1-wafer; The C-fan.

Embodiment

For reaching above-mentioned purpose and effect, the technology used in the present invention means and structure thereof, hereby draw and illustrate with regard to preferred embodiment of the present invention that in detail its features and functions is as follows, in order to understanding fully.

Refer to shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, be respectively the three-dimensional exploded view at stereo appearance figure of the present invention, three-dimensional exploded view, another visual angle, three-dimensional exploded view and the side cutaway view of fin, can know and find out in figure, the present invention is for including fin 1, radiating seat 2 and fan 3, therefore with regard to main member of the present invention and feature describe in detail as after, wherein:

This fin 1 has a plurality of fins 11 of the shape that is distributed in distance, and be formed with at least one accommodation space that is recess 10 in fin 11 places, top, and 11 of each adjacent fin are formed with heat dissipation channel 110, and all upward the first fairlead 111 and the second fairlead 112 that has at least two to be rightabout pre-determined tilt angle of stretching in fin 11 upper plate face places, and the junction of the first fairlead 111, the second fairlead 112 both sides and fin 11 upwards is formed with respectively the connecting portion 113 that is the flaring shape, and this connecting portion 113 can be the pattern of a connecting piece, holes or profile groove.

Moreover, above-mentioned a plurality of fin 11 places, central authorities below are provided with can be for the docking section 12 of radiating seat 2 combination location, and laterally be provided with on docking section 12 and be a plurality of clamping slots 121 that connect shape, and the first fairlead 111 of the opposite side of each fin 11 relative clamping slots 121 top and the second fairlead 112 places, both sides also laterally are provided with and are a plurality of conjugate foramens 114 that connect shape, separately on the fin 11 at place, the forward and backward both sides of fin 1, laterally are provided with a plurality of lockholes 115 and can be arranged in the screw 116 in lockhole 115.

These radiating seat 2 bottoms have contact-making surface 21, and be provided with the junction surface 22 of at least one located lateral groove 221 of tool in contact-making surface 21 tops places, and be equipped with heat pipe 4 in location notch 221, heat pipe 4 one side places can be arranged in to clamping

slot

121 and 221 formed spaces of location notch that fin 1 is positioned at docking section 12, heat pipe 4 is arranged in conjugate foramen 114 corresponding on fin 11 and is combined into one away from the opposite side place of docking section 12.

This fan 3 includes pedestal 31 and flabellum body 32, and be provided with the through hole 311 that can wear for screw 312 in pedestal 31 each corners, each fan 3 directly can be positioned in the accommodation space 10 on fin 1, and utilize screw 312 interlockings place, top between two fins 11 that pedestal 31 and fin 1 interlocking are fixed into and are integrated; Or can below the pedestal 31 of fan 3, locate to be provided with at least one framework 33, and utilize screw 312 interlockings corresponding lockhole 331 on framework 33 that pedestal 31 and framework 33 interlockings are fixed into and are integrated, perforation 333 on a plurality of side plates 332 that framework 33 place, both sides bendings are extended is aligned with lockhole 115 places on the fin 11 of locating the forward and backward both sides of fin 1, and after utilizing screw 116 through the perforation 333 on side plate 332, in the lockhole 115 of interlocking on fin 11, fan 3 and fin 1 interlocking can be fixed into and be integrated thus again; In addition, fan 3 outsides also can cover and be positioned with cover plate 34, and are provided with at least one open-work 341 corresponding to flabellum body 32 places on cover plate 34.

Please consult Fig. 2 simultaneously, Fig. 5, Fig. 6, shown in Fig. 7, be respectively three-dimensional exploded view of the present invention, side cutaway view, the schematic diagram when three-dimensional exploded view of preferred embodiment and fan are blown to fin, can know and find out in figure, wherein this circuit board 5 is provided with at least one pyrotoxin 51(as central processing unit, image processor or wafer etc.), fin 1 can be fixedly arranged on circuit board 5 by radiating seat 2, and make the contact-making surface 21 of radiating seat 2 bottoms steadily support and be affixed on pyrotoxin 51 surfaces, when the pyrotoxin 51 of circuit board 5 operates, can absorb the heat energy that pyrotoxin 51 runnings produce by radiating seat 2, and heat energy is conducted to fast on a plurality of fins 11 of fin 1 and increase area of dissipation, heat pipe 4 carries out the heat exchange action, the axial flow wind that simultaneously relies on fan 3 runnings to blow cooling use downwards to auxiliary heat dissipation sheet 1 on a plurality of fins 11 is dispelled the heat.

Moreover, all upward the first fairlead 111 and the second fairlead 112 that has at least two to be rightabout pre-determined tilt angle of stretching in a plurality of fins 11 upper plate face places of fin 1 of the present invention, and be positioned with fan 3 in the accommodation space 10 at fin 11 places, top, and this fan 3 is aligned with the first fairlead 111 and the second fairlead 112 places, top, and the axial flow wind that fan 3 produces is delivered on a plurality of fins 11 with clockwise or counter clockwise direction screw blowing down, when axial flow wind when the heat dissipation channel 110 of 11 of each adjacent fin is blown into, the axial flow wind that can produce toward fan 3 by the first fairlead 111 on fin 11 and the second fairlead 112 increases effect windward, the air quantity that axial flow wind is entered in heat dissipation channel 110 increases, to hoard thus the hot blast after heat exchange in a plurality of fins 11 is outwards overflowed fast by heat dissipation channel 110, or after the cold wind of axial flow wind directly can being blowed and carrying out heat exchange to the thermal region of radiating seat 2, along heat dissipation channel 110, hot blast is outwards overflowed fast again, but the pyrotoxin 51 on auxiliary circuit board 5 is taken the heat energy of hoarding fast out of to arrange to outside and is fallen apart, and improve whole radiating efficiency, and can reduce its windage and reduce irregular disturbance, thereby can guarantee the stability of fan 3 when running, and the problems such as noise that effectively solve generation while blowing, and utilize fan 3 to accelerate convective cooling, and then make whole radiating effect more good.

Refer to again Fig. 2, Fig. 5, shown in Fig. 7, the present invention is for all upward the first fairlead 111 and the second fairlead 112 that has at least two to be rightabout pre-determined tilt angle of stretching in a plurality of fins 11 upper plate face places of fin 1, and increase effect windward toward the axial flow wind of fan 3, reduce the noise of generation to reduce its windage, and the air quantity in 110 formed heat dissipation channels of each adjacent fin is increased, make whole radiating effect more good, yet, the plurality of embodiment is not in order to limit claim of the present invention, all other do not break away from the equalization completed under disclosed skill spirit to be changed and modifies change, all should be contained in the scope of the claims that the present invention contains.

In sum, the construction for heat radiating device that the present invention is above-mentioned, for really reaching its effect and purpose, therefore the present invention is really the invention of a practicality excellence, meet in fact the application important document of patent of invention, filing an application in whence in accordance with the law, expects that examining committee grants accurate the present invention early, to ensure inventor's arduous creation, if an ancient unit of weight office have any check doubtful, the indication of please writing to us without sparing, settled the doing one's utmost of inventor coordinates, and the true feeling moral is just.

Claims

1. a heat abstractor, include fin, radiating seat and fan, wherein this fin has a plurality of fins of the shape that is distributed in distance, and be provided with to the lip-deep radiating seat of pyrotoxin be affixed on the preinstalled circuit plate in place, fin below, place, fin top is positioned with at least one fan, and blow and coolingly dispelled the heat to fin with axial flow wind by fan running, it is characterized in that:

Be formed with heat dissipation channel between each adjacent fin of this fin, and in fin upper plate face place all upward the first fairlead and the second fairlead that has at least two to be rightabout pre-determined tilt angle of stretching, the axial flow wind that the first fairlead on fin and the second fairlead are produced toward fan.

2. heat abstractor as claimed in claim 1, it is characterized in that, this fin is positioned at place, fin top and is formed with the accommodation space that at least one is recess, and is positioned with this fan in accommodation space, and fan is aligned with the first fairlead and place, the second fairlead top on fin.

3. heat abstractor as claimed in claim 1, is characterized in that, the junction of the first fairlead of this fin and the second fairlead both sides and fin upwards is formed with respectively the connecting portion that is the flaring shape, and connecting portion is a connecting piece, holes or profile groove.

4. heat abstractor as claimed in claim 1, it is characterized in that, the place, fin below of this fin is provided with the docking section in conjunction with location for radiating seat, and being equipped with at least one heat pipe between docking section and radiating seat, heat pipe is arranged on fin and is combined into one away from the opposite side place of docking section.

5. heat abstractor as claimed in claim 1, is characterized in that, this fan includes pedestal and flabellum body, and pedestal directly is positioned on fin, or below pedestal, locate to utilize framework to be positioned on fin.

6. heat abstractor as claimed in claim 5, is characterized in that, this fan outside covers and is positioned with cover plate, and be provided with at least one open-work corresponding to flabellum body place on cover plate.