CN2604550Y

CN2604550Y - Radiating device

Info

Publication number: CN2604550Y
Application number: CN 03242123
Authority: CN
Inventors: 林耀南; 程新雨; 王育昇
Original assignee: Msi Technology Co ltd
Current assignee: Msi Technology Co ltd; Micro Star International Co Ltd
Priority date: 2003-03-17
Filing date: 2003-03-17
Publication date: 2004-02-25
Anticipated expiration: 2013-03-17

Abstract

The utility model discloses a radiation device used for guiding an air flow to perform a heat exchange to a heating component and emitting the heat so that the working temperature of the heating component can be lowered. A fan housing, an air admittance fan and an exhaust fan are equipped at the utility model wherein the fan housing covers on a radiator into which the atmospheric air, driven by the air admittance fan, enters to perform a heat exchange with the radiator. The exhaust fan can exhaust the heat air in the radiator outwards by the fan housing and effectively guide the atmospheric air into the radiator and exhaust, greatly raising the radiation efficiency.

Description

Sink

Technical field

The utility model relates to a kind of sink, is applied in the electronic equipment, in order to carry out heat exchange with heating element to electronic equipment and heat energy is discharged, to reduce the operating temperature of heating element.

Background technique

The generation of topmost heat energy is exactly the more and more faster microprocessor of current operational frequency in the computer, in order to keep the microprocessor normal operation, all has corresponding heat dissipation design on the microprocessor, the display card that hard disk that recent rotating speed is more and more faster and display quality are had relatively high expectations, also because rotating speed frequency high and operation is fast, make and therefore except microprocessor, corresponding heat dissipation design is also arranged by the height that operating temperature is also suitable at hard disk and display card part.

The heat dissipation design that heating element adopted in the present computer, mainly be with a fan combination on a radiator (Heat sink), radiator is normally made by high heat conductive metal material and directly is covered on the heating element, owing to have a plurality of radiating fins on the radiator, the heat energy that heating element produced will be passed on the radiating fin, and fan board is located at the radiating fin top, and fan is introduced ambient air and entered radiating fin to carry out heat exchange, hot air is outwards squeezed release again; With regard to regard to fan, the fan that is adopted generally can be divided into axial flow fan and centrifugal fan, axial flow fan is that air is flowed at axial direction, centrifugal fan then is to utilize centrifugal force that air is flowed at radial direction, and the selection of fan mainly is according to different spaces and radiating requirements.

As previously mentioned, each heating element is more and more faster because of operation frequency, and in order to keep the normal operation of heating element, the heat dissipation of sink also requires more and more higher; Generally speaking, the design of increase heat dissipation can be divided at radiator and partly reach at the fan part, at the radiator of radiator part as the high heat-conducting of employing or the heat diffusion area of increase radiator, and at the fan part, the simplest mode is as the blast that increases fan or increase number of fans or the like; With regard to regard to the increase blast, the rotating speed that improves fan can increase blast, yet improving rotation speed of the fan will make the level of noise of fan become big, heat dissipation and noise problem can't be taken into account, under the different operating temperature, provide different rotating speeds though can control fan by software at present, expectation can reduce the noise of fan when the heating element operating temperature is not high, but this measure is not the problem that just really solves heat dissipation and noise.

No. 508063 patent case of Taiwan patent announcement and for example, No. 508063 patent case disclosed a kind of design of double fan, it promptly is to improve heat dissipation in the mode that increases number of fans, yet this measure only is to allow two fans brush different positions, make the corresponding heating element of a fan, so that a plurality of heating elements are dispelled the heat, be not real lifting heat dissipation.

In addition, as No. 510524 patent case of Taiwan patent announcement, No. 510524 the patent case has disclosed a kind of sink with two wind inlets, it mainly is the design that utilizes the setting of radiating fin and cooperate the centrifugal fan wind direction on radiator, make and form two wind inlets on the radiator, utilize two wind inlets to guide ambient air to enter radiator and carry out heat exchange, yet centrifugal fan produces the outside air flow of radial direction, the design that sees through fan blade angles can make air from top to bottom enter radiating fin from axial direction, but also can't make the enter wind inlet of ambient air by radial direction, this kind design still can't effectively promote heat dissipation.

Summary of the invention

In the heat dissipation design that heating element adopted of known electronic equipment, the design that promotes heat dissipation at fan is to adopt to increase rotation speed of the fan increasing blast or increase number of fans, yet strengthen blast and will produce bigger noise, increasing number of fans also only is to come a plurality of heating element heat radiations with a plurality of fans, is not the lifting heat dissipation; Also has known design with two wind inlets, and can't guide ambient air to enter radiating fin effectively to carry out heat exchange, therefore the utility model is according to the existing problem of prior art, proposes a kind of sink of effective lifting heat dissipation, can meet the requirement of low noise simultaneously.

According to the disclosed sink of the utility model, it includes a radiator, one fan housing, an at least one supply fan and a venter, wherein radiator directly is covered on the heating element, erect on the radiator multi-disc radiating fin is arranged, and be formed with guiding fin portion and main rectangular fin portion, fan housing directly cover is overlying on the radiator and is formed with corresponding air dam of guiding fin portion, an and air draft portion, supply fan is arranged at air dam, in order to guide extraneous air to enter main rectangular fin portion by the guiding fin, air ejector fan is arranged at exhaust air box and is the position of corresponding main rectangular fin portion, after ambient air enters main rectangular fin portion and carries out heat exchange, can see through the hot air of air draft portion after by venter and discharge, reduce the operating temperature of heating element effectively heat exchange.

According to the disclosed sink of the utility model, design by supply fan and venter, guide extraneous air to enter in the radiator and by supply fan and carry out heat exchange with radiator, venter then discharges the hot air in the radiator by fan housing, so the utility model can be under the blast that does not change venter, guide ambient air to enter radiator effectively, and effectively the hot air after the heat exchange is discharged, and then significantly promote radiating efficiency, and the level of noise of supply fan and venter still can be controlled in the permissible range.

Description of drawings

Fig. 1 becomes decomposing schematic representation for structural group of the present utility model;

Fig. 2 is that structural group of the present utility model becomes the combination schematic representation;

Fig. 3 A is the plan view of radiator in the utility model;

Fig. 3 B is the bottom view of radiator in the utility model;

Fig. 4 is that structure of the present utility model is formed side schematic view; And

Fig. 5 is a heat radiation wind direction schematic representation of the present utility model.Among the figure

10 sinks

11 radiators

The 111 main planes that paste

112 pairs paste the plane

113 radiating fins

114 main rectangular fin portions

115,116 guiding fin portions

117 put platform

12 fan housings

121 suction ports

122,123 air dams

1221,1231 wind-guiding faces

124 air draft portions

Blast chambers 1241

1242 outlet pipes

1243 wind-guiding faces

13 supply fans

14 venters

Embodiment

According to the disclosed sink of the utility model, it is applied in the electronic equipment, carry out heat exchange in order to heating element to electronic equipment, wherein electronic equipment is meant personal computer, similar products such as mobile computer, and heating element is meant microprocessor, similar electronic component such as chip or hard disk, according to the disclosed sink of the utility model, be that the heat energy that will be produced under the heating element working state is discharged, to reduce the operating temperature of heating element, can proper functioning thereby keep heating element, following examples describe in detail, heating element will be example with the display card, but be not limited to use on display card, all can use such as microprocessor or other electronic component that under working state, produces heat energy.

As shown in Figure 1, 2, according to the disclosed sink 10 of the utility model, it includes a radiator 11, a fan housing 12, a supply fan 13 and a venter 14.

Radiator 11 is made by high heat conductive metal material, as being that material is made or is that material is made with aluminium with copper, according to different radiating requirements or corresponding heat radiation position, radiator 11 also can adopt integrated manufacture die cast or extrusion modling, or being divided into a plurality of assemblies is made up after die casting or the extrusion modling respectively again; At least the display chip and a plurality of internal memory (not shown) that have the main computing of an execution at present on the display card of high-order, radiator 11 can directly be covered on display chip and the internal memory, therefore have the pair that a master corresponding to display chip pastes plane 111 and a plurality of corresponding internal memories in the bottom surface of radiator 11 at least and paste plane 112 (as shown in Figure 3A), main plane 111 and the pair of pasting pastes plane 112 and should be true plane in theory, to contact with display chip and internal memory face, make the heat energy of display chip and internal memory can be passed on the radiator 11 effectively, yet in fact can't reach the requirement on true plane, generally speaking can paste and be coated with the heat-conducting glue (not shown) between plane 112 and display chip and internal memory in main plane 111 and the pair of pasting because of material or the restriction of creating conditions.

Cooperate shown in Fig. 3 B, on radiator 11, erect multi-disc radiating fin 113 is arranged, multi-disc radiating fin 113 is arranged the main rectangular fin portion 114 that pastes plane 111 corresponding to main that is formed with on radiator 11, and two corresponding pairs paste the guiding fin portion 115 on plane 112,116, and according to different radiating requirements, radiating fin 113 has different arrangements to erect mode, flow to design according to radiating airflow of the present utility model, the radiating fin 113 of main rectangular fin portion 114 is arcuation and with the outside radial arrangement of central point, generally speaking heat diffusion area is big more, heat dissipation is high more, display chip on the display card is main thermal source, and operating temperature is higher, so the radiating fin 113 of main rectangular fin portion 114 is arranged comparatively intensive, in order on unit area, to increase the quantity of radiating fin 113, increase heat diffusion area; Though and guiding fin portion 115,116 also accepts heat energy from internal memory corresponding to the position of internal memory, yet flow to design according to radiating airflow of the present utility model, 115, the 116 main designs of guiding fin portion are to guide ambient air to enter main rectangular fin portion 114, therefore the radiating fin 113 of main rectangular fin portion 114 also be arcuation but arrange apart from broad, thereby steering flow successfully.115,116 in guiding fin portion is provided with a storing platform 117 that is higher than radiating fin 113 on radiator 11 in addition.

Fan housing 12 is to be made by plastic material, the moulding of its coupling radiator 11, overlay on the radiator 11 with cover, flow to design according to radiating airflow of the present utility model, fan housing 12 covers overlay on the radiating fin 113, fan housing 12 is provided with a suction port 121 in storing platform 117 positions of corresponding radiator 11, in correspondence guiding fin portion 115,116 position is provided with air dam 122,123 (as shown in Figure 4), and be provided with an air draft portion 124 in the position of corresponding main rectangular fin portion 114, wherein, air dam 122,123 the other ends with respect to suction port 121 are formed with a reclinate wind-guiding face 1221,1231, so that after ambient air enters fan housing 12 by suction port 121, can be by wind-guiding face 1221,1231 guiding enters guiding fin portion 115,116, again by guiding fin portion 115,116 introduce main rectangular fin portion 114; Air draft portion 124 also includes a blast chamber 1241 and an outlet pipe 1242, blast chamber 1241 is just corresponding to main rectangular fin portion 114, outlet pipe 1242 is connected connection with blast chamber 1241, outlet pipe 1242 is discharged hot air to the external world, therefore outlet pipe 1242 is from the segment distance that extends radially outwardly of blast chamber 1241, and outwards enlarges gradually from joining place.

According to the radiating airflow flow direction of the present utility model design and for reaching the purpose of the utility model low noise, supply fan 13 adopts axial flow fan, supply fan 13 is arranged at puts platform 117 places and corresponding suction port 121, supply fan 13 makes air flow at axial direction, therefore when supply fan 13 rotates, ambient air will be entered in the fan housing 12 by supply fan 13; 14 of venters are to adopt centrifugal fan, venter 14 is arranged in the blast chamber 1241 and is to deviate from blast chamber 1241 center positions, make and be formed with a wind-guiding face 1243 in the blast chamber 1241, venter 14 makes air flow in radial direction, and design by the fan blade angle, when venter 14 rotates, the air of below can be sucked, and hot air is blown out to outlet pipe 1242 along guiding face 1243.Venter 14 main being responsible for discharge the hot air after 114 heat exchanges of main rectangular fin portion, the supply fan 13 main extraneous skies of guiding of being responsible for enter guiding fin portion 115,116, therefore venter 14 can adopt the large-size fan, supply fan 13 can adopt the reduced size fan, thus, according to the disclosed sink 10 of the utility model, under the blast that does not change venter 14, the noise that the undersized supply fan 13 that is increased is excessive with unlikely generation.

See also Fig. 2,4, shown in 5, radiator 11 directly is covered on display chip and the internal memory, when display card is carried out computing, the heat energy that display chip and internal memory produced will conduct on the radiating fin 113 of radiator 11 and radiator 11, supply fan 13 rotates and the guiding ambient air is entered in fan housing 12 by suction port 121, ambient air is introduced into air dam 122,123, and by wind-guiding face 1221,1231 guiding enters guiding fin portion 115 with the ambient air guiding, 116, again by guiding fin portion 115,116 enter main rectangular fin portion 114, after ambient air enters main rectangular fin portion 114, promptly carry out heat exchange with radiating fin 113, make ambient air change hot air into, venter 14 rotations this moment, hot air is entered in the blast chamber 1241 and by the rotation of venter 14, hot air is blown out to outlet pipe 1242 along guiding face 1243, and outlet pipe 1242 extends a segment distance and outwards enlarges gradually, so hot air can be discharged smoothly from outlet pipe 1242; So enter in the radiator 11 by the extraneous cool air of supply fan 13 guiding, by venter 14 hot air after the heat exchange is discharged, constituting radiating airflow of the present utility model flows to, under the blast situation that need not increase venter 14, can reduce the operating temperature of display chip and internal memory effectively.And owing to need not increase the blast of venter 14, therefore the noise in the time of can't increasing venter 14 runnings, and supply fan 13 adopts the fan of reduced size, also can control its level of noise, make the disclosed sink 10 of the utility model in the running, level of noise still can be controlled in the permissible range.

According to the disclosed sink 10 of the utility model, wherein can increase the quantity of supply fan 13 according to the radiating requirements of reality, enter in the radiator 11 can guide ambient air in different positions; Or also can select axial flow fan or centrifugal fan according to radiator 11 supply fans 13 or the venter 14 of different types, all can reach the purpose of the utility model declaration.

Above said content is preferred embodiment of the present utility model only, is not to be used for limiting practical range of the present utility model; For example, promptly all equalizations of being done according to the utility model claim change and modify, and are all contained by the utility model claim.

Claims

1. a sink is installed on the heating element, in order to this heating element heat exchange, to reduce the operating temperature of this heating element, be characterised in that it comprises:

One radiator, make with high heat-conducting, this radiator is covered on the described heating element, and erectting on this radiator has multi-disc radiating fin, this multi-disc radiating fin to constitute corresponding to the main rectangular fin portion of described heating element and the guiding fin portion of adjacent this main rectangular fin portion more than;

One fan housing, cover is overlying on the described radiator, and this fan housing includes the suction port at a corresponding described guiding fin portion place, the air dam of corresponding described guiding fin portion more than, and the air draft portion of a corresponding described main rectangular fin portion;

More than one supply fan is arranged at the suction port place of described fan housing, enters described guiding fin portion in order to produce air-flow guiding ambient air, and enters described main rectangular fin portion by guiding fin portion; And

One air ejector fan is arranged at the air draft portion of described fan housing, in order to produce air-flow the hot air in the described main rectangular fin portion is discharged.

2. sink as claimed in claim 1 is characterized in that: described radiator is that material is made with copper.

3. sink as claimed in claim 1 is characterized in that: described radiator is that material is made with aluminium.

4. sink as claimed in claim 1 is characterized in that: the blast chamber and that described air draft portion also comprises a sheathed described venter is connected in the outlet pipe of this blast chamber.

5. sink as claimed in claim 4 is characterized in that: described venter departs from the center of this blast chamber, enters described outlet pipe in order to air-guiding and discharges.

6. sink as claimed in claim 4 is characterized in that: described outlet pipe outwards enlarges gradually from the joining place with described blast chamber.

7. sink as claimed in claim 1 is characterized in that: described supply fan is an axial flow fan.

8. sink as claimed in claim 1 is characterized in that: described venter is a centrifugal fan.