CN2909799Y

CN2909799Y - Heat sink

Info

Publication number: CN2909799Y
Application number: CN 200620054301
Authority: CN
Inventors: 王宁宇; 刘芬
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2006-01-21
Filing date: 2006-01-21
Publication date: 2007-06-06
Anticipated expiration: 2016-01-21

Abstract

A cooling device includes a radiator and an air supplying fan for the radiator. The radiator includes a base and several cooling fins fixed on the base. Two adjacent cooling fins have interval. the fan sends the airflow into the interval through one side of the radiator, the shape of one side of the cooling fin, in opposite of the fan, is set to guide the airflow into the interval; and the shape of the other side of the cooling fin, far away from the fan, is set to guide the airflow out of the interval.

Description

Heat abstractor

[technical field]

The utility model is about a kind of heat abstractor, refers to a kind of heat abstractor that fan dispels the heat to radiator and windage is little that utilizes especially.

[background technology]

Along with the power output of electronic components such as central processing unit and improving constantly of operating frequency, the heat of its corresponding generation is showed increased also, if the heat of untimely its generation of eliminating will cause accumulation of heat to cause that temperature raises, and have a strong impact on the normal operation of electronic component.For this reason, industry is carried out auxiliary heat dissipation at these heat-generating electronic elements mounted on surface one radiators usually, installs a fan simultaneously on radiator additional, to strengthen radiating effect.

Shown in Figure 1 is existing a kind of heat abstractor, it comprises that a radiator 50 and is fixed on the fan 80 on the radiator 50, radiator 50 comprises a base and is installed in some fin 51 on the base, the bottom of base contacts with treating heat dissipation element, to treat that the heat on the heat dissipation element is sent on these fin 51, by fan 80 these fin 51 are blown again, thereby take away the heat on the fin 51, reach radiating effect, but because a side of these fin 51 relative fans is set to the horizontal cross-section, when fan 80 was blown on these fin 51, windage was bigger, and wind speed diminishes and influences radiating effect.

The radiator structure of TaiWan, China patent application a kind of host computer inside of being disclosed for No. 93208811 for another example, its central processing unit place on host housing side plate and motherboard is provided with the heat radiation module of wind guide tank and combination thereof, the air guide hole aperture area of wind scooper is greater than louvre area set on the host housing, this radiator structure increases by a wind scooper in order to strengthen radiating effect, not only increase the cost of heat radiation module, and the wind scooper volume is bigger, needs to be provided with in the cabinet extra accommodation space.

[summary of the invention]

In view of above content, be necessary to provide a kind of heat abstractor that fan dispels the heat to radiator and windage is less that utilizes.

A kind of heat abstractor, comprise radiator and give the fan of described radiator air-supply, described radiator comprises base and the fin of plurality of fixed on described base, be provided with the gap between adjacent in twos fin, described fan is sent into air-flow in the described gap by a side of radiator, described fin is set to the shape that steering current flows into the gap in the face of a side of fan, and described fin is set to the shape that steering current flows out the gap away from a side of fan.

With respect to prior art, the radiator of described heat abstractor flows at air intake one side directed air-flow, flows out at air-out one side directed air-flow, makes the speed in the gap between the airflow passes fin higher, reaches good radiating effect.

[description of drawings]

Fig. 1 is the three-dimensional exploded view of existing a kind of heat abstractor.

Fig. 2 be one preferred embodiment of the utility model heat abstractor three-dimensional exploded view.

Fig. 3 is the stereogram of fin among Fig. 2.

Fig. 4 is the three-dimensional assembly diagram of Fig. 2.

Fig. 5 is the stereogram of another kind of fin.

[embodiment]

See also Fig. 2, the utility model heat abstractor comprises a radiator 10, a fan 30 and a fan attachment 30 fan Fixture 40 to radiator 10.

Radiator 10 comprises a base 16, is fixed with heat pipe 12 at the upper surface of base 16, and some fin 11 are located on the heat pipe 12 successively, and 11 of adjacent in twos fin are provided with a gap 14 to allow the air communication mistake.The lower surface of base 16 and one treats that heat dissipation element (as central processing unit) contacts, and treats that the heat that heat dissipation element produces is sent on the fin 11 through heat pipe 12 by base 16.

See also Fig. 3, fin 11 1 sides are set to the inner concave 113 of arc, a relative side is set to the outer convex surface 115 of arc, after then these fin 11 are fixed to base 16, inner concave 113 by these fin 11 on radiator 10 forms an inner fovea part 13, forms a male part 15 by outer convex surface 115.

Fan Fixture 40 is roughly the elastic strip body of a n shape, and it comprises a upper plate 41 and extend the

biside plate

43,45 that forms vertically downward by upper plate 41 relative both sides that the lower end of

side plate

43,45 bends inwards and forms end difference 431,451 respectively.Four jiaos of fan Fixture 40 one sides are provided with four screws 42.

Four screws 42 of corresponding fan Fixture 40 are provided with four fixing holes 32 on four jiaos of fan 30.

See also Fig. 4, the dual-

side

43,45 of fan Fixture 40 is outwards pulled open, the fin 11 of radiator 10 is housed in the upper plate 41 of fan Fixture 40, the space that

side plate

43,45 forms, and fin topmost 11 and upper plate 41 are offseted,

biside plate

43,45 comes up, then biside

plate

43,45 fits with the both sides of fin 11 respectively, and the lower end of end difference 431,451 and fin bottom 11 offsets, thereby fan Fixture 40 is fixed on radiator 10.Then four screws 70 pass four fixing holes 32 respectively, and screw in four screws 42 and fan 30 is fixed on the fan Fixture 40, and this moment, one side of radiator 10 relative fans 30 was an inner fovea part 13.

The fan 30 that rotates is sent into air-flow by inner fovea part 13 1 sides of radiator 10, the gap 14 of 11 of the fin of flowing through and sending from male part 15 1 sides, thus the heat on the fin 11 is taken away, reach radiating effect.Because it is inner fovea part 13 that air-flow enters a side of radiator 10, the shape of its indent can enter in the gap 14 of 11 of fin by steering current smoothly, and is less with respect to its windage of horizontal cross-section, thereby air-flow has fair speed to enter in the gap 14 of 11 of fin; The side that air-flow flows out radiator 10 is the male part 15 of arc, and the shape of its evagination can steering current flows out the gap 14 of 11 of fin smoothly, and windage is less.Like this by changing the shape of fin 11, and make air intake one side of radiator 10 and the resistance of air-out one crosswind less, thereby can guarantee that air-flow has higher velocity flow through fin 11, make the radiating effect of fin 11 better.And after air flow stream is crossed fin 11, still can keep higher speed, help the heat radiation of radiator 10 posterior elements.

See also Fig. 5, it is the fin 11 ' of another kind of shape, its side in the face of fan is set to the inner concave 113 ' of arc, and its side away from fan is set to lobe shape 115 ', and such fin 11 ' can play the effect that reduces windage equally.

Claims

1. heat abstractor, comprise radiator and give the fan of described radiator air-supply, described radiator comprises base and the fin of plurality of fixed on described base, be provided with the gap between adjacent in twos fin, described fan is sent into air-flow in the described gap by a side of radiator, it is characterized in that: described fin is set to the shape that steering current flows into the gap in the face of a side of fan, and described fin is set to the shape that steering current flows out the gap away from a side of fan.

2. heat abstractor as claimed in claim 1 is characterized in that: described fin is set to inner concave in the face of a side of fan.

3. heat abstractor as claimed in claim 2 is characterized in that: described fin is set to outer convex surface away from a side of fan.

4. heat abstractor as claimed in claim 2 is characterized in that: described fin is set to lobe shape away from a side of fan.

5. heat abstractor as claimed in claim 1 is characterized in that: described radiator is provided with heat pipe, and described fin is arranged in described heat pipe and fixes on it.

6. heat abstractor as claimed in claim 1 is characterized in that: described heat abstractor also comprises the fan Fixture of a fan attachment, and described fan Fixture is fastened in described radiator.

7. heat abstractor as claimed in claim 6, it is characterized in that: described fan Fixture comprises a upper plate and biside plate, described side plate lower end is respectively equipped with the end difference that bends inwards and form, and butt is topmost and fin bottom and described fan Fixture is fixed on described radiator respectively for described upper plate and described end difference.