CN2817316Y

CN2817316Y - Radiating fin

Info

Publication number: CN2817316Y
Application number: CN 200520061216
Authority: CN
Inventors: 于建春
Original assignee: Mitac Precision Technology Shunde Ltd
Current assignee: Mitac Precision Technology Shunde Ltd
Priority date: 2005-07-11
Filing date: 2005-07-11
Publication date: 2006-09-13
Anticipated expiration: 2015-07-11

Abstract

The utility model relates to a radiating fin, which is composed of a plurality of fin plates, wherein the fin plates with U-shaped cross sections are arranged in parallel, and both sides of the fin plate is are cut into inclines; thereby, a wind inlet and a wind outlet of the radiating fin have large effective ventilation area. In addition, the fin plates are not arranged in horizontal arrangement but have a certain included angle with the horizontal direction (I direction), and preferably, the direction of the arrangement of the fin plates is consistent with the tangential direction of the wind outlet direction of fan blades which are arranged on one side of the radiating fin. Because both sides of the radiation fin are cut into inclines, the effective ventilation areas of the wind inlet and the wind outlet of the utility model is large, and the wind resistance is small; in addition, the direction of the arrangement of the fin plates is approximately consistent with the tangential direction of the wind outlet direction of the fan blades, cold air can not collide with the inner walls of the fin plates when the cold air is conveyed and the utility model is favorable for air flow heat radiation because the wind resistance is small.

Description

Fin

Technical field

The utility model relates to a kind of heat abstractor, relates in particular to a kind of radiating fin and arrangement of heat abstractor.

Background technology

More powerful and the also raising rapidly of its arithmetic speed of computer calculation function now, and its global shape, structure and break through traditional mode especially with the connected mode of motherboard, it is the major reform of computer industry, more because the calculation function of central processing unit of new generation powerful, and the temperature that makes it be produced when handling computing is higher, so how to use good cooling system to make its normal operation under the temperature that is allowed, become the most important problem in this area.

Referring to shown in Figure 1, be fin 10 main body external structures commonly used, it is by some " U " type fin 2, and along continuous straight runs (I direction) is arranged in parallel and is an even curface, and its formed air inlet 3, air outlet 4 are vertical square structure; And the fan (not shown) is placed on the one side, and what generally use is the eddy current fan.

In the above-mentioned fin 10, owing to fin 10 air inlets 3, air outlet 4 are vertical square structure, so the available ventilation area is less, windage is bigger, also is unfavorable for the air flows heat radiation.

And because the wind speed of eddy current fan flows to and the tangential direction basically identical of its flabellum, also be that itself and horizontal direction (I direction) have certain angle, so when fan rotates transmission cold wind, the outlet and inlet direction of fin 10 and eddy current pectinid flow speed and direction have certain angle, wind can collide with fin 2 after entering channel by air inlet 3, gone out by air outlet 4, it is big that resistance is advanced in the transmission of wind again, is unfavorable for the air flows heat radiation.

Summary of the invention

Main purpose of the present utility model provides a kind of heat radiating fin structure of excellent in heat dissipation effect.

For reaching above-mentioned main purpose, the fin of the utility model by some cross sections for " U " fin of type is arranged in parallel and forms, the inclined-plane is all cut in the both sides of these fins, and the orientation of these fins and horizontal direction have certain included angle.

Preferable, a side of above-mentioned fin becomes the inclined-plane of two chamfering formulas, and its opposite side then becomes an inclined-plane to connect two sections circular arcs.

Preferable, the tangential direction basically identical of above-mentioned fin orientation and electric fan air-out.

Mat is above-mentioned, its air inlet of fin of the present utility model and air outlet are all cut into the inclined-plane, so its available ventilation area is bigger, windage is less, and the orientation of its fin is substantially parallel with the tangential direction of electric fan air-out, when transmitting cold wind, can not collide with the fin inwall, windage is little, is beneficial to the air flows heat radiation.

Another purpose of the utility model provides the fin that a kind of safety that is content with very little requires.

For achieving the above object, the technical scheme that the utility model adopted is the tongue piece that is equipped with on each fin to fin one side projection.This tongue piece can not only increase the area of dissipation of fin, and the distance between two adjacent fins greater than 1 millimeter situation under, block foreign matter by tongue piece and invade fin inside, satisfy the requirement of safety, and save manufacturing cost.

Description of drawings

Below in conjunction with embodiment and accompanying drawing the utility model is described in detail below:

Fig. 1 is the stereogram of background technology fin.

Fig. 2 is the stereogram of the utility model fin.

Fig. 3 is the schematic diagram of the utility model fin.

Embodiment

As shown in Figure 2, the fin 100 of present embodiment be by some cross sections for " U " fin 6 of type arranges and forms, and these fins 6 are not, and horizontal parallel is arranged, but has certain included angle with horizontal direction (I direction), this angle is preferable between 30 ° and 60 °, in this embodiment, the orientation of these fins 6 is consistent with the tangential direction of the fan (not shown) flabellum air-out that is installed in fin one side.

The inclined-plane is all cut in the both sides of these fins 6, as shown in Figure 3, the one side becomes the inclined-plane 61 of two chamfering formulas among this embodiment, its opposite side then becomes an inclined-plane 62 to connect two sections circular arcs 63, thereby make fin 100 first and last have the air inlet 7 and the air outlet 8 (as shown in Figure 2) of constant slope, with increase fin 100 into and out of the air port 7,8 net sectional area, thereby reduce the resistance of air intake and air-out.

In the present embodiment in order better to increase the area of dissipation of fin 100, on described fin 6, be equipped with tongue piece 64 to the one side projection of fin 6, the number of set tongue piece 64 is decided on the length of fin 6, fin 6 is long more, 64 of set tongue pieces are many more, and these tongue pieces 64 tilt to be positioned on the one side of fin 6, form by punching press.These tongue pieces 64 can not only increase area of dissipation, and the distance of 6 of two adjacent fins greater than 1 millimeter situation under, block foreign matter by tongue piece 64 and invade fin 100 inside, satisfy the requirement of safety.

Mat is above-mentioned, fin 100 its air inlets 7 of the present utility model and air outlet 8 available ventilation areas are bigger, windage is less, and the tangential direction basically identical of the orientation of its fin 6 and electric fan air-out, when transmitting cold wind, can not collide with fin 6 inwalls, windage is little, is beneficial to the air flows heat radiation.And by tongue piece 64, can not only increase the area of dissipation of fin 6, and the distance of 6 of two adjacent fins greater than 1 millimeter situation under, just can satisfy the requirement of safety, save manufacturing cost.

The above person only is the utility model preferred embodiment wherein, is not to be used for limiting practical range of the present utility model; Be that all equalizations of being done according to the utility model rights protection scope change and modification, be all the utility model claim and contain.

Claims

1. fin, its by some cross sections for " U " fin of type is arranged in parallel and forms, it is characterized in that: the inclined-plane is all cut in the both sides of these fins, and the orientation of these fins and horizontal direction have certain included angle.

2. fin as claimed in claim 1 is characterized in that: a side of described fin becomes the inclined-plane of two chamfering formulas, and its opposite side then becomes an inclined-plane to connect two sections circular arcs.

3. fin as claimed in claim 1 is characterized in that: the orientation of described fin is consistent with the tangential direction of the electric fan air-out that is installed in fin one side.

4. fin as claimed in claim 1 is characterized in that: described angle is between 30 ° and 60 °.

5. fin as claimed in claim 1 is characterized in that: on described fin, be equipped with to fin wherein the one side projection tongue piece.

6. fin as claimed in claim 5 is characterized in that: described tongue piece tilts to be positioned on the one side of fin.