CN100518466C - Radiator - Google Patents
Radiator Download PDFInfo
- Publication number
- CN100518466C CN100518466C CN 200510034360 CN200510034360A CN100518466C CN 100518466 C CN100518466 C CN 100518466C CN 200510034360 CN200510034360 CN 200510034360 CN 200510034360 A CN200510034360 A CN 200510034360A CN 100518466 C CN100518466 C CN 100518466C
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- China
- Prior art keywords
- radiator
- radiating fin
- base
- horizontal part
- mentioned
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- Expired - Fee Related
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
Abstract
The radiator is in use for emitting quantity of heat generated from electric components. The radiator includes a base, thermal fins with interval between each other parallel arranged on base, and heat pipes connected between base and portion apart from base in fins. The radiator possesses a close face so as to form air duct with open slots at two ends between adjacent fins. Moreover, distance between close face at one end of air duct and base is larger than distance between close face at the other end of air duct and base. Heat exchanger effectiveness of airflow and thermal fins of the disclosed radiator is high.
Description
[technical field]
The present invention relates to a kind of heat abstractor, be meant a kind of radiator of cooling electronic components especially.
[background technology]
General electronic component (particularly central processing unit) produces big calorimetric when moving, and itself and system temperature are raise, and too high temperature can cause the decline of its runnability.For guaranteeing that electronic component can normally move, on the electronic component heat abstractor is installed usually, discharge a large amount of heats that it produces.
As existing a kind of heat abstractor, the heat pipe that it comprises a pedestal, is arranged at some radiating fins that are parallel to each other of pedestal upper surface and roughly is " コ " shape.This each radiating fin up and down two ends bending is extended with flanging, and its lower end flanging is for contact with this pedestal upper surface, and these upper end flanging common combinations form the last plane of a sealing, thus the windage loss when this plane can prevent that fan from blowing side.This heat pipe is connected this pedestal by its two free end with the radiating fin upper part is hot.This base bottom surface and electronical elements surface are fitted, the heat transferred that produces when electronic component is to pedestal, one part heat directly is passed to the position, top of radiating fin by heat pipe, another part heat directly is passed to radiating fin from pedestal, the air-flow that heat on the last radiating fin blows out by fan is dispersed in the surrounding air, reaches the purpose of cooling electronic components.But, size is all identical with shape from air flow inlet to air stream outlet for gas channel between the adjacent radiating fin of above-mentioned radiator, more single, after air-flow enters gas channel, flow and more slow down because radiating fin surface and contacting of air-flow make the speed of the air-flow on close radiating fin surface flow to the air stream outlet direction from air flow inlet, and the air-flow at gas channel middle part and radiating fin surface touch opportunity are little, directly flow out radiating fin, heat exchange is insufficient, the heat of being taken out of is less, causes the heat exchanger effectiveness of entire heat dissipation device low.
[summary of the invention]
By the following examples the present invention is illustrated.
The radiator of the embodiment of the invention comprises that a base, some spaces are parallel to the radiating fin on the base and connect on this base and the radiating fin heat pipe away from base portion, a flanging is extended in described each radiating fin upper end bending in the same way, these flangings are combined to form a sealing surface, form the gas channel of both ends open between the sealing surface of this radiator and the adjacent radiating fin, it is characterized in that: the cross-sectional area of this gas channel one port is greater than the cross-sectional area of another port.
This execution mode compared with prior art has following advantage: because the cross-sectional area of gas channel one port of radiator is greater than the another port cross-sectional area, so air-flow from the big end of the cross-sectional area of gas channel when a little end flows, because cross-sectional area is more and more littler, impel air velocity to accelerate, make airflow direction produce skew gradually simultaneously, make the air-flow (comprising the air-flow of its close radiating fin and the air-flow at middle part) in the gas channel produce turbulent flow, make it more abundant with contacting of radiating fin surface, improve heat exchanger effectiveness, increase the heat of being taken out of, thereby improve the radiating efficiency of entire radiator.
Further improvement as above-mentioned execution mode is that this radiator also comprises a sealing surface, surrounds the said flow passage with radiating fin, base; A flanging is extended in each radiating fin upper end bending in the same way, and these flangings are combined to form this sealing surface; This radiator also comprises a top board that is sticked the radiating fin flanging; At least one heat pipe is located between this top board and the sealing surface.Because this some radiating fins top top board that has been sticked, and be folded with heat pipe between this top board and the sealing surface, help heat and conduct to more uniform each position, top of radiating fin that diffuses to behind the top board by heat pipe, thus the radiating efficiency of raising radiator.
With reference to the accompanying drawings, the invention will be further described in conjunction with specific embodiments.
[description of drawings]
Fig. 1 is the three-dimensional exploded view of first embodiment of the invention radiator and fan.
Fig. 2 is the assembly drawing of Fig. 1.
Fig. 3 is the stream condition schematic diagram in the first embodiment of the invention radiator gas channel.
Fig. 4 is the assembly drawing of second embodiment of the invention radiator and fan.
[embodiment]
The radiator of the embodiment of the invention is to be used for being installed on the central processing unit heat-generating electronic elements such as (figure do not show) it is dispelled the heat.
Seeing also Fig. 1 to Fig. 3, is the radiator of first embodiment of the invention.This radiator comprises a base 10, some radiating fins 20 that mutually equidistantly is parallel to these base 10 upper surfaces, be arranged at second heat pipe 50 that first heat pipe 40 and that the top board 30, two on this some radiating fins top makes the some radiating fins of this base 10 and this 20 upper ends be connected with top board 30 intermediate thermal conductivity is connected some radiating fins 20 close position, the upper end thermal conductivity of this base 10 and this.
Above-mentioned base 10 comprises a main body 12, this main body 12 is for having the metal plates such as copper of high heat transfer coefficient, its lower surface is used for contacting with electronic component, and upper surface is provided with several semi-circular recesses 122 that combine with heat pipe 40, and these base 10 two ends are outward extended with fixing feet 14 respectively.Above-mentioned each radiating fin bends extension one flanging 22 in two ends about in the of 20 in the same way, one end of these radiating fin 20 top edges reduces gradually to the height of the relative lower limb of the other end, promptly be camber line (or oblique line), thereby during the mutual permutation and combination of some radiating fin 20, its end face forms the cambered surface 220 (or inclined-plane) (shown in Figure 1) of height for reducing gradually with respect to base 10, second section lateral edges 234 that the relatively low lateral edges 23 of the height of this radiating fin 20 has the first section lateral edges parallel with the opposite side edge 232 and reduces gradually with the distance at opposite side edge is beneficial to the gas channel that makes on the air flow direction radiator other electron component on every side thereby should be some be formed with between these second section lateral edges 234 during radiating fins 20 combinations; The corresponding above-mentioned groove 122 of these radiating fin 20 lower limbs is provided with semi-circular recesses 24, ora terminalis also is provided with the semi-circular grooves 26 that combines with heat pipe 40 on it, this radiating fin 20 also is provided with the perforation 28 that combines with heat pipe 40 near the position, upper end, the position of the close last ora terminalis of this radiating fin 20 offers the opening 29 that several and last ora terminalis bearing of trend (camber line or oblique line) equidirectional extend, and promptly is camber line shape or oblique line shape.Above-mentioned top board 30 be by copper or aluminium with and the metal solid made of alloy, the shape of surface thereof shape and above-mentioned cambered surface 220 (or inclined-plane) matches, and corresponding above-mentioned groove 26 also is provided with groove 32.Above-mentioned first and second heat pipe 40,50 roughly is " コ " shape, the connecting portion 46,56 that it all has first horizontal part 42,52 (evaporation part), second horizontal part 44,54 (condensation part) and connects this first and second horizontal part.Wherein, second horizontal part 42,52 of this first and second heat pipe 40,50 is located in several in the corresponding grooves 122,24 between aforementioned body 12 and the radiating fin 20 respectively, first horizontal part 44 of this first heat pipe 40 is located in the groove 32,26 between above-mentioned top board 40 and the radiating fin 20, and first horizontal part 54 of this second heat pipe 50 is arranged in the perforation 28 of radiating fin 20.
Because radiating fin 20 tops are formed with the cambered surface 220 (or inclined-plane) of a sealing, so the gas channel of both ends open is sealed in formation one up and down between every adjacent radiating fin 20, and the vertical range of (under the condition that the spacing between every adjacent radiating fin equates) this relative bottom surface of gas channel end face reduces gradually, and promptly the cross-sectional area of this gas channel reduces gradually.Above-mentioned top board 30 is owing to be attached at radiating fin 20 tops, and the evaporation part 42 of 2 first heat pipes 40 is located in the middle of top board 30 and the radiating fin 20, so this top board 30 is not only strengthened the structure steadiness on radiating fin 20 tops, and makes heat can diffuse to each position, radiating fin 20 upper end evenly, fast.Be appreciated that ground, because the foregoing description has top board and is posted by the radiating fin top, nature is formed by top board and the cambered surface (or inclined-plane) of cambered surface (or inclined-plane) identical function on above-mentioned radiating fin top, so flanging also can not established in the radiating fin top, get final product and radiating fin and top board are combined by other modes, form some grooves as the top board lower surface, with the radiating fin top respectively inserted mode be fixed on the top board.
When central processing unit is worked, the heat transferred that produces is to the base 10 of radiator, a part of heat on this base 10 directly is sent on some radiating fins 20 by the flanging 22 of second heat pipe 50 and radiating fin 20 bottoms, another part heat is sent to radiating fin position, 20 upper end and top board 30 by heat pipe 40, heat on this top board 30 diffuses to position, radiating fin 20 upper end by the contact area of itself and radiating fin 20 again, and the heat on the radiating fin 20 distributes in surrounding space by its surface.
The side that the cross-sectional area of above-mentioned its gas channel of radiator is bigger is installed a radiator fan 60, to improve the thermal convection speed of radiator and surrounding air.At this moment, the air-flow that fan 60 blows out flows to a little end from the big end of the cross-sectional area of gas channel, because cross-sectional area is more and more littler, impel air velocity to accelerate, simultaneously owing to use cambered surface 220 (or inclined-plane) to make airflow direction produce skew (under oblique) (shown in Figure 3) gradually, make the air-flow (comprising the air-flow of its close radiating fin 20 and the air-flow at middle part) in the gas channel produce turbulent flow, make it more abundant with contacting of radiating fin 20 surfaces, improve heat exchanger effectiveness, increase the heat of being taken out of.
Seeing also shown in Figure 4ly, is the radiator of second embodiment of the invention.This radiator is with respect to the radiator difference among above-mentioned first embodiment, radiating fin 20 ' the top top board that is not sticked, and only depend on its top flanging 22 ' to be combined to form the cambered surface 220 ' (or inclined-plane) of sealing, and each radiating fin 20 ' is respectively equipped with perforation 28 ' near the condensation part 44 ' of corresponding first heat pipe 40 ' in position, upper end, wears in it for first heat pipe, 40 ' condensation part 44 '.
Be appreciated that ground, the quantity of the heat pipe in the various embodiments described above, size and shape can suitable according to demand changes, as using " C " font flat heat pipe etc.The sealing cambered surface (or inclined-plane) on the radiator top in the various embodiments described above can also form wavy or other shape, as long as the big end of gas channel two-port cross-sectional area one end of its formation is little, promptly satisfying air-flow accelerates to get final product from the big end air velocity when a little end flows of the cross-sectional area of gas channel, when being curved surfaces such as cambered surface, parabola as this sealing surface, this sealing surface will satisfy the vertical line of the each point tangent line on its bearing of trend and the angle of base reduces or the like gradually.
Radiator forms the gas channel that cross-sectional area reduces gradually by the cambered surface (or inclined-plane) of the sealing of radiating fin top (top board) in the various embodiments described above.It is also understood that ground, the gas channel that the cross-sectional area of radiator of the present invention reduces gradually can form by the shape (cambered surface or inclined-plane) of base upper surface, be base one end thickness greater than the other end, can also form the said flow passage by the combined use of sealing surface shape of base upper surface shape and radiating fin top (top board).
Claims (26)
1. radiator, comprise a base, some spaces are parallel to the radiating fin on the base and connect on this base and the radiating fin heat pipe away from base portion, it is characterized in that: a flanging is extended in described each radiating fin upper end bending in the same way, these flangings are combined to form a sealing surface, the sealing surface of this radiator makes the gas channel that forms both ends open between the adjacent radiating fin, the one end is an air inlet, the other end is an air outlet, near sealing surface one end of air inlet to the distance of base greater than reducing gradually to air outlet from air inlet near sealing surface one end of air outlet distance to the sealing surface of the distance of base and gas channel to base.
2. radiator as claimed in claim 1 is characterized in that: above-mentioned sealing surface is cambered surface or inclined-plane.
3. radiator as claimed in claim 2 is characterized in that: above-mentioned heat pipe has first, second horizontal part, and arbitrary horizontal part passes radiating fin in above-mentioned first, second horizontal part.
4. radiator as claimed in claim 2 is characterized in that: this radiator also comprises a top board, and the flanging of this top board lower surface and radiating fin is fitted.
5. radiator as claimed in claim 4 is characterized in that: above-mentioned heat pipe has first, second horizontal part, and arbitrary horizontal part is located between this top board and the sealing surface in above-mentioned first, second horizontal part.
6. radiator as claimed in claim 5 is characterized in that: this radiator also comprises another heat pipe at least, and it has first, second horizontal part, and above-mentioned first horizontal part passes radiating fin, second horizontal part is located between this base and the radiating fin.
7. radiator as claimed in claim 1, it is characterized in that: this radiator comprises that also one is arranged at the top board on radiating fin top, this top board lower surface above-mentioned sealing surface that is sticked, above-mentioned heat pipe has first, second horizontal part, and arbitrary horizontal part is located between this top board and the sealing surface in first, second horizontal part of above-mentioned heat pipe.
8. as each described radiator in the claim 1 to 7, it is characterized in that: above-mentioned base one end thickness is greater than the other end, and this moment, this base upper surface was cambered surface or inclined-plane.
9. radiator as claimed in claim 1 is characterized in that: the sealing surface of its gas channel one port of this radiator to the bigger side of the distance of base is installed a fan.
10. radiator as claimed in claim 1 is characterized in that: the height of each radiating fin reduces to the end near air outlet gradually from the end near air inlet.
11. radiator as claimed in claim 10 is characterized in that: the relatively low lateral edges of above-mentioned radiating fin height has second section lateral edges that the first section lateral edges parallel with the opposite side edge reaches and the distance at opposite side edge reduces gradually.
12. radiator as claimed in claim 11 is characterized in that: the position of the close last ora terminalis of above-mentioned radiating fin offers several bearing of trends and last ora terminalis open parallel.
13. radiator, comprise a base, some spaces are parallel to the radiating fin on the base and connect on this base and the radiating fin heat pipe away from base portion, form the gas channel of both ends open between the adjacent radiating fin, it is characterized in that: a flanging is extended in described each radiating fin upper end bending in the same way, these flangings are combined to form a sealing surface, described sealing surface and radiating fin, base surrounds described gas channel, the cross-sectional area of this gas channel air intake one port is greater than the cross-sectional area of air-out one port, and the sealing surface of gas channel to the distance of base reduces to air outlet gradually from air inlet.
14. radiator as claimed in claim 13 is characterized in that: the cross-sectional area of this gas channel reduces to air outlet gradually from air inlet.
15. radiator as claimed in claim 13 is characterized in that: above-mentioned sealing surface is cambered surface or inclined-plane.
16. radiator as claimed in claim 13 is characterized in that: above-mentioned heat pipe has first, second horizontal part, and arbitrary horizontal part passes radiating fin in above-mentioned first, second horizontal part.
17. radiator as claimed in claim 13 is characterized in that: this radiator also comprises a top board, and the flanging of this top board lower surface and radiating fin is fitted.
18. radiator as claimed in claim 15 is characterized in that: above-mentioned heat pipe has first, second horizontal part, and arbitrary horizontal part is located between this top board and the sealing surface in above-mentioned first, second horizontal part.
19. radiator as claimed in claim 18 is characterized in that: this radiator also comprises another heat pipe at least, and it has first, second horizontal part, and above-mentioned first horizontal part passes radiating fin, second horizontal part is located between this base and the radiating fin.
20. radiator as claimed in claim 13, it is characterized in that: this radiator comprises that also one is arranged at the top board on radiating fin top, this top board lower surface above-mentioned sealing surface that is sticked, above-mentioned heat pipe has first, second horizontal part, and arbitrary horizontal part is located between this top board and the sealing surface in first, second horizontal part of above-mentioned heat pipe.
21. radiator, comprise a base, the top board that is provided with at interval with base, folder is established the radiating fin that arrange some spaces between this base and the top board, one heat pipe connects this base and top board, it is characterized in that: a flanging is extended in described each radiating fin upper end bending in the same way, these flangings are combined to form a sealing surface, this top board is curve form, the vertical line of the tangent plane of this curved surface and the angle of base reduce gradually, the sealing surface of this radiator makes the gas channel that forms both ends open between the adjacent radiating fin, the one end is an air inlet, the other end is an air outlet, and the sealing surface of gas channel to the distance of base reduces to air outlet gradually from air inlet.
22. radiator as claimed in claim 21, it is characterized in that: the flanging of described curved surface and radiating fin is fitted, and the end that the vertical line of the tangent plane of curved surface and the angle of base are big is an air intake, and the end that the vertical line of the tangent plane of curved surface and the angle of base are little is an outlet air end.
23. radiator as claimed in claim 21 is characterized in that: the distance of the relative base in above-mentioned top board edge is high on one side low on one side.
24. radiator as claimed in claim 23 is characterized in that: the lower end bending of above-mentioned each radiating fin is extended with and upper end flanging in the same way, and the flanging at two ends is connected with base with top board respectively up and down.
25. radiator as claimed in claim 24 is characterized in that: above-mentioned heat pipe has first, second horizontal part, and above-mentioned first, second horizontal part is located in respectively between base and radiating fin, top board and the radiating fin.
26. radiator as claimed in claim 25 is characterized in that: this radiator also comprises another heat pipe at least, and it has first, second horizontal part, and above-mentioned first horizontal part is connected in base, and second horizontal part passes radiating fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510034360 CN100518466C (en) | 2005-04-22 | 2005-04-22 | Radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510034360 CN100518466C (en) | 2005-04-22 | 2005-04-22 | Radiator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1852644A CN1852644A (en) | 2006-10-25 |
| CN100518466C true CN100518466C (en) | 2009-07-22 |
Family
ID=37134105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510034360 Expired - Fee Related CN100518466C (en) | 2005-04-22 | 2005-04-22 | Radiator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100518466C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100592861C (en) * | 2006-12-15 | 2010-02-24 | 富准精密工业(深圳)有限公司 | Heat radiating device |
-
2005
- 2005-04-22 CN CN 200510034360 patent/CN100518466C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1852644A (en) | 2006-10-25 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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Granted publication date: 20090722 Termination date: 20130422 |