CN2935725Y - Heat radiating core and heat radiator - Google Patents
Heat radiating core and heat radiator Download PDFInfo
- Publication number
- CN2935725Y CN2935725Y CN 200620122939 CN200620122939U CN2935725Y CN 2935725 Y CN2935725 Y CN 2935725Y CN 200620122939 CN200620122939 CN 200620122939 CN 200620122939 U CN200620122939 U CN 200620122939U CN 2935725 Y CN2935725 Y CN 2935725Y
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- cavity
- heat
- radiating core
- radiator
- pedestal
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Abstract
The utility model relates to an irradiation core, which includes a base and a plurality of ribs, which are inter-connected. The base is provided with one or more cavity. The cavity is arranged along the rib, and is channel-shaped. The inter-connected base and ribs are brazed. The utility model also relates to an irradiator, which includes the irradiation core and an occluder, and the occluder is used to occlude the cavity mouth of the base and prevent media leakage of the cavity. Each cavity mouth of the irradiation core is connected with an occluder, or all the cavity mouths of the irradiation core share one occluder, or a plurality of cavity mouths share one occluder, and the occluder is used to seal the cavity and prevent media leakage of the cavity. The occluder may also be connected with a liquid filling tube for media filling. So the irradiation core of the utility model is provided with a cavity and is featured with low material consumption and low fabrication cost. The irradiator of the utility model takes use of the media in the cavity, and is featured with high conducting efficiency and good irradiation effect.
Description
Technical field
The utility model relates to a kind of radiating core and radiator, and especially a kind of gas-liquid phase transition of working medium that utilizes conducts heat, and utilizes fin to carry out the radiating core and the radiator of heat exchange.
Background technology
Along with development of times, no matter be at industry or sphere of life, need be more and more with the situation that radiator dispels the heat, and along with the maximization of parts or the development of microminiaturization, the power of parts is increasing, the following density of heat flow rate that produces is increasing, therefore must use radiator to dispel the heat.
Existing radiator is the aluminium section bar radiator that adopts expressing technique to make, and as shown in Figure 1, is the structural representation of existing aluminium section bar radiator, is made up of integrally formed aluminium base 80 and fin 81 (claiming fin again) two parts.
Thermal source contacts with the bottom of aluminium base when work, conducts heat to fin by aluminium base then and dispels the heat.Therefore, it is heat conduction function (participating in the part heat exchange) that aluminium base is mainly born heat transferred, be about to heat and pass to fin by aluminium base, and fin is mainly used in the heat exchange effect of finishing, and is about to heat and exchanges by fin and air.
In the middle of real work, the contact area of some parts is very little, but density of heat flow rate is very high, and the area of aluminium base is bigger, when the relative aluminium base of thermal source 80 whole expansion planes with the contact area of aluminium base 80 less, and when heat vertically is the Y direction transmission along aluminium base, in order to increase the calorie value of transmission, reduce to transmit thermal resistance, can only increase the cross-sectional area of aluminium base in heat transferred direction (Y direction), because work as material one timing of radiator, conductive coefficient is certain, therefore for heat efficiently conducts, radiator generally uses aluminium, copper or other good heat-conducting metal or alloy.
And the increase of cross-sectional area certainly will cause the pedestal thickening, material consumption strengthens, cost increases, and because the entity aluminium base capacity of heat transmission is limited, in fin dimensional structure one stable condition lower limit system the heat-sinking capability of aluminium section bar radiator, when power of heat source is density of heat flow rate when big, can't reach good heat radiation purpose.
Therefore, the existing actual heat transfer efficiency of radiator of expressing technique moulding that adopts is not high, can be limited by very poor aluminium base heat transfer efficiency even the heat exchange efficiency of fin is high more yet, so greatly reduces the radiating effect of radiator.
The utility model content
The purpose of this utility model is the defective at prior art, and a kind of radiating core and radiator are provided, the low cost of manufacture of radiating core, radiator heat transfer efficiency height, good heat dissipation effect.
For achieving the above object, the utility model provides a kind of radiating core, comprises interconnected pedestal and several pieces fins, has one or more cavity in the described pedestal.
Described cavity extends along the fin direction.Described more than one cavity is conducted, and is channel shaped.Described interconnected pedestal and several pieces fins are that soldering welding or heat-conducting glue are bonding.Has wick in the described cavity.
The utility model also provides a kind of radiator based on above-mentioned radiating core, it is characterized in that comprising:
Be used to conduct described radiating core with heat-shift;
Be used for cavity airtightly, and prevent the plugging device of the refrigerant leakage in the cavity, the cavity mouth of sealing-in and described pedestal cavity.
All be sealed with a plugging device on each cavity mouth of described radiating core; Perhaps be sealed with a plugging device on the mouth of all cavitys of described radiating core, make all cavitys be connected; Perhaps the cavity of described radiating core is more than one, is sealed with a plugging device on the cavity mouth of several cavitys, makes described several cavitys be connected.The material of described radiating core is metal or metal alloy.Described metal is aluminium or copper or iron.Be connected with the topping up pipe that is used to dose working medium on the described plugging device.
Therefore, have cavity in the radiating core of the present utility model, so material consumption is few, low cost of manufacture, and radiator of the present utility model utilize the Working fluid phase changing in the cavity to carry out heat conduction, thereby the heat transfer efficiency height cause the radiating effect of radiator very good.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is the structural representation of existing Section Bar Heat Sinks.
Fig. 2 is the structural representation of the utility model radiating core.
Fig. 3 is the structural representation of the utility model radiator.
Fig. 4 is the cutaway view of the B-B line among the utility model radiator Fig. 3.
Structural representation when Fig. 5 is the utility model radiator heat-dissipation.
Fig. 6 is the cutaway view of C-C line among the utility model radiator Fig. 5.
Another structural representation when Fig. 7 is the utility model radiator heat-dissipation.
Fig. 8 is the cutaway view of D-D line among the utility model radiator Fig. 7.
Embodiment
The utility model has cavity in pedestal, can fill working medium, utilizes Working fluid phase changing to conduct heat.
As shown in Figure 2, be the structural representation of the utility model radiating core, this radiating core 1 comprises interconnected pedestal 10 and several pieces fins 11 (being also referred to as fin), and has one or more cavity 12 in the pedestal 10.Several pieces fins 11 and cavity 12 vertically are that Y direction is extended along pedestal 10, along pedestal 10 laterally is that X-direction is arranged, these cavitys 12 can conducting or not conducting in inside, and that the shape of cavity 12 can have is a variety of, can be channel shape or the like, and interconnected pedestal 10 and several pieces fins 11 can be soldering welding (also can be or heat-conducting glue is bonding or other connected modes), and the material of pedestal 10 and several pieces fins 11 can be metal or metal alloy, for example other good heat-conducting metal or alloys such as aluminium or copper or iron.And can be added with wick at cavity inside.
Because have cavity 12 in the pedestal 10,, reduced manufacturing cost thus so radiating core 1 can reduce a lot of material consumptions when making.
During fabrication, in original Section Bar Heat Sinks pedestal, produce manyly be parallel to fin, along extruding the cavity of expansion direction, the size of cavity and shape be according to the heat transfer power of thermal source density of heat flow rate, radiator, radiator overall dimension and multifactorly determine with thermal source syndeton etc. is all.
As shown in Figure 3, be the structural representation of the utility model radiator, this radiator comprises the radiating core 1 that is used to conduct with heat-shift, on the cavity mouth 120 of radiating core cavity 12 sealing-in plugging device 2, be used for airtight with cavity, the working medium of filling in cavity 12 just can not leaked like this.And can be connected with topping up pipe 3 on the plugging device, be used in cavity 12, filling working medium.
As shown in Figure 4, be the cutaway view of the B-B line among the utility model radiator Fig. 5, the shape of plugging device 2 can be an evagination.
If cavity 12 inside are not conductings, cavity mouth 120 at each cavity 12 all utilizes a plugging device 2 to carry out shutoff like this, then each cavity 12 just can conducting, working medium in the cavity 12 12 is carried out phase-change heat transfer respectively in each cavity separately, and each cavity 12 utilizes topping up pipe 3 separately to fill working medium thus.If the common plugging device 2 of cavity mouth 120 usefulness of several cavitys 12 carries out shutoff, like this, these several cavitys 12 are exactly conducting, and the working medium in these cavitys 12 can heat conduction the cavity 12 of these conductings in, and each cavity 12 of conducting utilizes a topping up pipe 3 filling working medium.If the cavity mouth 120 of each cavity 12 all utilizes common plugging device 2 to carry out shutoff certainly, like this, all cavitys 12 just become conducting, and the working medium in all cavitys 12 can flow in all cavitys 12, carry out heat conduction, and can fill working medium by a shared topping up pipe 3.
By sealing-in separate formation one closed cavity between the block head 2 at radiating core 1 two ends is with cavity 12 two ends internal communication or cavity 12, in cavity 12, charge into a certain amount of working medium, be about to radiating core and made a heat pipe.Heat exchanging part still by means of the fin 11 that connects, had so both kept the high characteristics of former section bar radiator heat exchange efficiency, had solved the low problem of heat susceptor conduction efficiency again.
Again as shown in Figure 5, structural representation during for the utility model radiator heat-dissipation, thermal source 4 contacts with the bottom of radiator base 10, when thermal source 4 during (thermal source 4 with the contact area of pedestal 10 much smaller than the area of pedestal own) generally speaking with the contact portion of heat transferred radiator base 10, referring to shown in Figure 6, cutaway view for C-C line among Fig. 5, the working medium that contacts with this part in the cavity 12 is subjected to thermal evaporation, the working medium heat absorption becomes gaseous state by liquid state, be diffused into whole cavity 12 in the pedestal 10 rapidly with certain pressure, promptly the heat of thermal source 4 is transmitted to rapidly on the whole pedestal 10, carry out in the heat transfer process at the fin 11 that is connected with pedestal 10, working medium heat release condensation in the cavity 12 relies on gravity to come back to initial evaporated, moves in circles.
As shown in Figure 7, another structural representation during for the utility model radiator heat-dissipation, thermal source 4 contacts with the middle part (can certainly be top) of radiator base 10, when thermal source 4 during with the contact portion of heat transferred radiator base 10, the working medium that contacts with this part in the cavity 12 is subjected to thermal evaporation, the working medium heat absorption becomes gaseous state by liquid state, be diffused into whole cavity 12 in the pedestal 10 rapidly with certain pressure, promptly the heat of thermal source 4 is transmitted to rapidly on the whole pedestal 10, carry out in the heat transfer process at the fin 11 that is connected with pedestal 10, working medium heat release condensation in the cavity 12, referring to shown in Figure 8, be the cutaway view of D-D line among Fig. 7, rely on the capillary force of wick 13 to come back to initial evaporated, move in circles.Therefore the technical program can be so that the position of thermal source be provided with more flexible.
Because what heat conducted employing in pedestal 10 is the adopting heat pipes for heat transfer principle of Working fluid phase changing, its capacity of heat transmission can reach thousands of times of entity aluminium.And, has isothermal during adopting heat pipes for heat transfer, the heat that receives thermal source 4 can be expanded to whole heat pipe section by the part by the Working fluid phase changing heat transfer is that pedestal 10 has isothermal, thoroughly having overcome the Section Bar Heat Sinks heat is conducted in the whole pedestal process because entity aluminium thermal-conduction resistance causes the heat conduction to block by the thermal source place, the shortcoming that the base-plates surface Temperature Distribution is irregular, during by connected fin heat exchange, fin is with heat exchange efficiency difference under the homalographic, and heat does not wait.Main wherein A equals heat exchange area because of heat Φ=A*h* Δ t, and h is an aluminium fin surface coefficient of heat transfer, and Δ t is aluminium fin surface temperature t
wWith aluminium fin ambient air temperature t
fPoor.Same radiator then A is equal with h, because heat is in the pedestal conductive process, existing Section Bar Heat Sinks utilization be entity aluminium conduction, conductive coefficient λ aluminium is about 200w/mk, when existing radiator when Y direction extension area is big, whole aluminium base is very big along the fluctuation of Y direction surface temperature, causes t
wForm very big gradient difference; And its conductive coefficient of radiator of the present utility model is thousands of times of aluminium, and therefore, radiator base temperature of the present utility model is even, and gradient difference is little, its t
wMean temperature is far above the t of Section Bar Heat Sinks
wMean value; So Δ t value of the present utility model is higher than existing Section Bar Heat Sinks, heat promptly of the present utility model and heat exchange effect are far above existing Section Bar Heat Sinks.
Heat transfer process of the present utility model can be subdivided into: the 1. entity of thermal source conduction, and the 2. local Working fluid phase changing with the thermal source contact portion of aluminium base, the 3. heat of transformation of aluminium base conduction is up to the 4. heat exchange of aluminium fin.
Therefore the utility model utilizes working medium to carry out heat conduction, makes heat transfer efficiency obviously increase, and has promoted the heat exchange effect, makes that the radiating effect of radiator is very good.
It should be noted last that, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not break away from the spirit and scope of technical solutions of the utility model.
Claims (10)
1, a kind of radiating core is characterized in that comprising interconnected pedestal and several pieces fins, has one or more cavity in the described pedestal.
2, radiating core according to claim 1 is characterized in that described cavity arranges along the fin direction.
3, radiating core according to claim 1 is characterized in that described more than one cavity is conducted, and is channel shaped.
4, radiating core according to claim 1 is characterized in that described interconnected pedestal and several pieces fins are that soldering welding or heat-conducting glue are bonding.
5, radiating core according to claim 1 is characterized in that having wick in the described cavity.
6, a kind ofly require the radiator of 1 described radiating core, it is characterized in that comprising based on aforesaid right:
Be used to conduct described radiating core with heat-shift;
Be used for cavity airtightly, and prevent the plugging device of the refrigerant leakage in the cavity, the cavity mouth of sealing-in and described pedestal cavity.
7, radiator according to claim 6 is characterized in that all being sealed with a plugging device on each cavity mouth of described radiating core; Perhaps be sealed with a plugging device on the mouth of all cavitys of described radiating core, make all cavitys be connected; Perhaps the cavity of described radiating core is more than one, is sealed with a plugging device on the cavity mouth of several cavitys, makes described several cavitys be connected.
8, according to claim 6 or 7 described radiators, the material that it is characterized in that described radiating core is metal or metal alloy.
9, radiator according to claim 8 is characterized in that described metal is aluminium or copper or iron.
10,, it is characterized in that being connected with on the described plugging device topping up pipe that is used to dose working medium according to claim 6,7 or 9 described radiators.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620122939 CN2935725Y (en) | 2006-08-04 | 2006-08-04 | Heat radiating core and heat radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620122939 CN2935725Y (en) | 2006-08-04 | 2006-08-04 | Heat radiating core and heat radiator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2935725Y true CN2935725Y (en) | 2007-08-15 |
Family
ID=38352406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620122939 Expired - Fee Related CN2935725Y (en) | 2006-08-04 | 2006-08-04 | Heat radiating core and heat radiator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2935725Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109765976A (en) * | 2018-12-17 | 2019-05-17 | 北京比特大陆科技有限公司 | Radiator and calculating equipment with it |
-
2006
- 2006-08-04 CN CN 200620122939 patent/CN2935725Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109765976A (en) * | 2018-12-17 | 2019-05-17 | 北京比特大陆科技有限公司 | Radiator and calculating equipment with it |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUANGDONG FUXIN ELECTRONIC SCIENCE & TECHNOLOGY C Free format text: FORMER OWNER: SHI GUIJU Effective date: 20080912 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080912 Address after: Guangdong Province, Foshan City, Shunde hi tech Zone (Ronggui) No. 20 Keyuan Road three, zip code: 528306 Patentee after: Guangdong Fuxin Electronic Technology Co., Ltd. Address before: Xinhua Road North Street Construction in Shijiazhuang city of Hebei province No. 65 Yandu garden 4-3-602, zip code: 050041 Patentee before: Shi Guiju |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070815 |