CN100574593C

CN100574593C - Radiator

Info

Publication number: CN100574593C
Application number: CNB2006100347506A
Authority: CN
Inventors: 黄清白; 张�杰; 朱习剑
Original assignee: Fuzhun Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Fuzhun Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2006-03-25
Filing date: 2006-03-25
Publication date: 2009-12-23
Anticipated expiration: 2026-03-25
Also published as: CN101043805A

Abstract

A kind of radiator, comprise some radiating fins that pile up mutually, be formed with the interval that radiating airflow is passed through between each adjacent radiating fin, this radiator further comprises and the hot linked heat pipe of this radiating fin, be equipped with several first protuberances and second protuberance on each radiating fin, these first protuberances and second protuberance are extended to heat pipe by the end of radiating fin respectively, its bearing of trend along the direction of advance of air-flow and and airflow direction between folder establish an acute angle with heat pipe that air-flow is led, these first protuberances and second protuberance also can increase the turbulent flow of gas between radiating fin, increase the radiating effect of radiator.

Description

Radiator

[technical field]

The invention relates to a kind of radiator, particularly about a kind of radiator that is used for electronic element radiating.

[background technology]

Existing heat abstractor generally comprises the radiator fan that a radiator and provides forced draft.This radiator is provided with some flat radiating fins, wherein form the gas channel make this forced draft process between each adjacent radiating fin, this heat abstractor utilizes forced draft in this gas channel and the heat exchange between radiating fin to realize heat radiation to heat-generating electronic elements.

In the heat radiation process of this heat abstractor, because the influence of viscous effect, this forced draft flowing in gas channel is laminar flow or Turbulence Flow.Usually Turbulence Flow can strengthen the heat exchange between radiating fin and forced draft.Even during Turbulence Flow, in the surperficial contact portion of radiating fin one laminar sublayer is arranged with forced draft, the increase of this laminar sublayer thickness can reduce the heat exchanger effectiveness between radiating fin and forced draft.Therefore, the formation and the development that how to destroy this laminar sublayer are the heat exchanger effectivenesss that improves between the forced draft of radiating fin and radiator fan generation, thereby promote one of key issue of entire heat dissipation device radiation efficient.

[summary of the invention]

In view of this, with specific embodiment the radiator of a kind of tool than high cooling efficiency is described below.

A kind of radiator, comprise some radiating fins that pile up mutually, be formed with the interval that radiating airflow is passed through between each adjacent radiating fin, this radiator further comprises and the hot linked heat pipe of this radiating fin, be equipped with several first protuberances and second protuberance on each radiating fin, these first protuberances and second protuberance are extended to heat pipe by the end of radiating fin respectively, its bearing of trend along the direction of advance of air-flow and and airflow direction between folder establish an acute angle with heat pipe that air-flow is led.

These first and second protuberances also can make the air-flow of flowing through between radiating fin produce turbulent flow, to increase the disturbance of air-flow between radiating fin, destroy the growth and the development of near the laminar sublayer of radiating fin, help to improve the heat exchange coefficient on radiating fin surface, thereby reduce the heat exchange thermal resistance at radiating fin place, promote the heat exchange effect on radiating fin surface, improve the performance of entire radiator; The setting of this first and second protuberance also can increase the area of dissipation of entire radiator, improves the radiating efficiency of this radiator.

[description of drawings]

Be further described in conjunction with the embodiments with reference to the accompanying drawings:

Fig. 1 is the stereogram of this radiator;

Fig. 2 is the cutaway view of Fig. 1 along the II-II line;

Fig. 3 is the three-dimensional cutaway view of single radiating fin among Fig. 1.

[embodiment]

The described radiator 10 of present embodiment can be used with a radiator fan, and the air-flow that this radiator fan is produced blows to this radiator 10 in a certain direction.

As shown in Figure 1, this radiator 10 comprise that some radiating fins that are parallel to each other 12 and are arranged in these radiating fins 12 and with the hot linked flat heat pipe 14 of a heater element.When 10 work of this radiator, the heat transferred that this heat pipe 14 can produce heater element is to radiating fin 12, utilizes radiating fin 12 and air-flow by therebetween to carry out heat exchange, thereby heat is distributed.

See also Fig. 3, this radiating fin 12 comprises a flat body 120, this body 120 is provided with respectively by the vertical fin 121 that extends forward of body 120 upper/lower terminals, the fin 121 of each radiating fin 12 leans with the body 120 of last radiating fin 12 respectively, form certain interval 12 of each two adjacent radiating fins, the air-flow that radiator fan is produced can flow through radiating fin 12 at interval via these, with radiating fin 12 heat-shifts.The heat pipe hole 122 that a heating tube 14 wears is offered at these body 120 middle parts, the edge in this heat pipe hole 122 protrudes out to a side of body 120 and is formed with and heat pipe 14 contacted contact sites 123, this contact site 123 can increase the contact area of 12 of heat pipe 14 and radiating fins, the heat transferred radiating fin 12 that heat pipe 14 can be produced heater element better, the radiating efficiency of raising radiator 10.

See also Fig. 2, this radiating fin 12 is equipped with one first protuberance 124 and one second protuberance 125 that protrudes out to body 120 forward and backward both sides respectively in the upper and lower both sides of contact site 123, simultaneously a side relative with first protuberance 124 forms the first recess 124a on body 120, and forms the second recess 125a at the opposite side relative with second protuberance 125.Be appreciated that ground, the upper and lower both sides of this contact site 123 can be provided with a plurality of first protuberances 124, the first recess 124a and second protuberance 125, the second recess 125a respectively, these first protuberances 124 and second protuberance 125 are crisscross arranged and smooth the connection with the adjacent second recess 125a and the first recess 124a respectively, thereby form corrugated gas channel in 12 upper and lower both sides in contact site 123 of adjacent radiating fin.Be positioned at first protuberance 124 of contact site 123 upsides and second protuberance 125 respectively by near the fin 121 of upside to fin 121 place's diagonally extendings of downside, and be positioned at first protuberance 124 of contact site 123 downsides and second protuberance 125 respectively by near the fin 121 of downside to fin 121 place's diagonally extendings of upside, these first protuberances 124 and second protuberance 125 are respectively by on the radiating fin 12, following both sides diagonally extending is to contact site 123, following both sides, and keeping at a certain distance away airflow passes heat pipe 14 both sides that the length direction along body 120 of radiator fan generation is advanced near an end of contact site 123 Width and contact site 123 along body 120.The bearing of trend B of these first protuberances 124 and second protuberance 125 is along the direction of advance A of air-flow, and and the direction of advance A of air-flow between folder establish an acute angle.Be positioned at each first protuberance 124 and second protuberance 125 corresponding respectively respectively first protuberance 124 and second protuberance 125 that is positioned at contact site 123 downsides on the Width of body 120 of contact site 123 upsides, each that makes contact site 123 upper and lower both sides is the arrangement of " eight " font to first protuberance 124 and each to second protuberance 125.

When these radiating fins 12 of airflow passes that radiator fan produces, the direct of travel of inlet air flow before these first and second protuberances 124,125 can change, increase the turbulent flow of gas in the gas channel, destroy the growth and the development of near radiating fin 12 bodies 120 laminar sublayers, help to improve the heat exchanger effectiveness between radiating fin 12 surfaces and air-flow, reduce the thermal resistance at radiating fin 12 places, promote the heat exchange effect on radiating fin 12 surfaces; In addition, the setting of these first and second protuberances 124,125 can make air-flow flow to heat pipe 14 both sides along first and

second recess

124a, 125a, increases the blast and the air quantity at heat pipe 14 places, improves the radiating efficiency of heat pipe 14; And these first and second protuberances 124,125 also can increase the area of dissipation of entire radiator 10, improve the radiating efficiency of entire radiator 10.

In the present embodiment, each first protuberance 124 of contact site 123 upsides and each second protuberance 125 be each first protuberance 124 and each second protuberance 125 of corresponding contact site 123 downsides respectively, and each first protuberance 124 of contact site 123 upper and lower both sides and each second protuberance 125 are corresponding one by one respectively; Be appreciated that ground, first protuberance 124 of contact site 123 upsides and second protuberance 125 also can be crisscross arranged with first protuberance 124 and second protuberance 125 of contact site 123 downsides, be the second recess 125a of first protuberance, 124 corresponding contact site 123 downsides of contact site 123 upsides, the first recess 124a of then corresponding contact site 123 downsides of second protuberance 125 of contact site 123 upsides.

In the present embodiment, heat pipe 14 is not limited to wear with the combination of radiating fin 12, and this heat pipe 14 also can be erected on the wall portion of these radiating fins 12 along the orientation of radiating fin 12, makes heat pipe 14 and radiating fin 12 hot links.

Claims

1. radiator, comprise some radiating fins that pile up mutually, be formed with the interval that radiating airflow is passed through between each adjacent radiating fin, it is characterized in that: this radiator further comprises and the hot linked heat pipe of this radiating fin, be equipped with several first protuberances and second protuberance on each radiating fin, these first protuberances and second protuberance are extended to heat pipe by the end of radiating fin respectively, its bearing of trend along the direction of advance of air-flow and and airflow direction between folder establish an acute angle with heat pipe that air-flow is led.

2. radiator as claimed in claim 1, it is characterized in that: these first protuberances and second protuberance protrude out to the radiating fin both sides respectively, a side relative with first protuberance on radiating fin is formed with first recess, the opposite side relative with second protuberance is formed with second recess, and these first protuberances and second protuberance are crisscross arranged in the same side of radiating fin with adjacent second recess and first recess respectively.

3. radiator as claimed in claim 1 is characterized in that: these first protuberances and adjacent smooth connection of second protuberance form corrugated gas channel between adjacent radiating fin.

4. radiator as claimed in claim 1 is characterized in that: these first protuberances and second protuberance keep at a certain distance away with heat pipe respectively along the direction vertical with air-flow.

5. radiator as claimed in claim 1 is characterized in that: this radiating fin middle part is provided with the heat pipe hole that heating tube wears, and these first and second protuberances are extended the upper and lower both sides of thermotropism pore respectively by the upper/lower terminal of radiating fin respectively.

6. radiator, comprise a heat pipe and some radiating fins that piles up along heat pipe, be formed with the interval that radiating airflow is passed through between each adjacent radiating fin, it is characterized in that: be equipped with several first protuberances and second protuberance that protrude out to the radiating fin both sides respectively on each radiating fin, these first protuberances and second protuberance are extended to the position near heat pipe by the end of radiating fin respectively, and folder is established an acute angle with the position with the close heat pipe of air-flow guiding between the direction of advance of its bearing of trend and air-flow.

7. radiator as claimed in claim 6 is characterized in that: this heat pipe is arranged in the radiating fin, and these first protuberances and second protuberance extend to the heat pipe both sides along the direction of advance of the air-flow upper/lower terminal by radiating fin.

8. radiator as claimed in claim 7, it is characterized in that: each first protuberance that is positioned at heat pipe one side and second protuberance be along corresponding respectively respectively first protuberance and second protuberance that is positioned at the heat pipe opposite side of the direction of uprush, and each that makes the heat pipe both sides is the arrangement of " eight " font to first protuberance and each to second protuberance.

9. as each described radiator in the claim 6 to 8, it is characterized in that: a side relative with first protuberance on each radiating fin is formed with first recess, the opposite side relative with second protuberance is formed with second recess, and these first protuberances and second protuberance are crisscross arranged with adjacent second recess and first recess respectively.

10. radiator as claimed in claim 9 is characterized in that: these first protuberances are connected with adjacent second recess, and these second protuberances are connected with adjacent first recess, thereby form corrugated gas channel between adjacent radiating fin.