CN202432489U - Box type heat radiation device and cold box heat radiation device - Google Patents
Box type heat radiation device and cold box heat radiation device Download PDFInfo
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- CN202432489U CN202432489U CN2011202600219U CN201120260021U CN202432489U CN 202432489 U CN202432489 U CN 202432489U CN 2011202600219 U CN2011202600219 U CN 2011202600219U CN 201120260021 U CN201120260021 U CN 201120260021U CN 202432489 U CN202432489 U CN 202432489U
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- dissipating cover
- heat abstractor
- fan
- air
- box type
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Abstract
The utility model relates to an LED illumination field, and discloses a box type heat radiation device and a cold box heat radiation device. According to the utility model, two heat radiation covers which are buckled constitute the box type heat radiation device. Upper and lower closed planes 2 of the box type heat radiation device can be respectively used for contacting with and placing a heating component for performing a cooling function on the heating component. Furthermore, an air inlet channel and an air outlet channel of a fan 3 which is equipped in the cold box heat radiation device are fin-shaped flow guiding heat radiation pieces 4 in the cold box heat radiation device. The air which flows in an air inlet surface 5 and flows out of an air outlet surface 6 both pass through the heat radiation pieces and the cold box heat radiation device for generating heat exchange. Therefore the heat radiation effect is improved for one time over the prior-art heat radiation technique in which the fan only blows air in one direction for cooling.
Description
Technical field
The utility model relates to the LED lighting field, particularly the heat dissipation technology in the LED lighting device.
Background technology
Be used for traditional heat-dissipating method that element is cooled off in LED (light emitting diode) lighting device, all be the element surface that requires to lower the temperature closely mount a kind of outer surface complicated conduct the made radiator that causes of material preferably with heat.The contact area of utilizing radiator to increase element and air improves the heat exchanger effectiveness between loses heat element and the air, to reach cool effect.
Yet, this passive heat dissipating method, its radiating efficiency depends on the temperature difference of radiator and surrounding air, the flow regime of air, the area of radiator and form.Prior art has adopted the area design of multiple complicacy; Increase area of dissipation (being the patent of 301280887S) like Granted publication number; But want bigger power component is dispelled the heat, the size of heat dissipation element will be very big, can not satisfy application requirements under many circumstances.Especially in the led light source application facet, ten watts or tens watts often of element power that requires to be dispelled the heat, but the size of light source itself is limited again, Here it is prior art bottleneck that the LED bulb power is restricted.
The method of another kind of radiating and cooling is the active cooling method that adopts fan to quicken gas flow.This cool-down method all has widespread usage in led light source and luggable computer.Cool off with fan, will utilize fin to carry out heat exchange equally, though the area of this fin can be little many, add the installation of fan, still can not be applied in the bulb of most of volume compacts.The prior art of up-to-date outstanding compact heat sink arrangement (specifically asking for an interview the patent that notification number is CN 101986008 A).Yet, still there is following shortcoming in this scheme:
Because radiator side is used for cooling heating element often, the inlet and outlet of radiator all can only be arranged in the identical another side of radiator.Be in the same side into and out of the close between the air port; Positive counterblast is in one side; The hot-air that heated is discharged the back and is mixed with cool ambient air; Can be sucked within the radiator from air inlet again greatly, form a waste and old gas thermal cycle, thereby reduced the radiating efficiency of radiator.For gas and the radiator that fan is blown out has sufficient heat exchange; Will make the air in the radiator that enough circulation length is arranged; Air-out and air inlet at fan are all arranged a circulation passage, and radiator just needs certain altitude, is difficult to satisfy the compactedness requirement.
The utility model content
The purpose of the utility model is to provide a kind of box type heat abstractor and cold box heat abstractor, has improved radiating efficiency greatly, fully satisfies the application requirements of led light source, has guaranteed the application scenarios of led light source.
For solving the problems of the technologies described above, the embodiment of the utility model provides a kind of box type heat abstractor, comprises: the first dissipating cover 1a and the second dissipating cover 1b, be placed in the inner fan 3 of said dissipating cover;
Wherein, the said first dissipating cover 1a and the second dissipating cover 1b can fasten each other, are the box type of platypelloid type behind the fastening; The upper and lower surfaces 2 of said box type heat abstractor is an enclosed planar; Around upper and lower enclosed planar is box type heat abstractor ventilating opening; Wherein occupying the first half the ventilating opening 7a of said heat abstractor ventilating opening periphery is the air intake surface 5 that is used for air intake, and the second ventilating opening 7b of second half periphery is the outlet air surface 6 that is used for air-out.
The embodiment of the utility model also provides a kind of cold box heat abstractor, comprises: the first dissipating cover 11a and the second dissipating cover 11b, built-in fans 13;
Wherein, the said first dissipating cover 11a and the second dissipating cover 11b can fasten each other, and the said first dissipating cover 11a and the second dissipating cover 11b have the flat board 12 of fan containing hole and form in the fin-shaped flow-guiding radiation sheet 14 of last lower plane with positioned vertical by the centre;
Said flow-guiding radiation sheet 14 external edge edges coincide with said dull and stereotyped 12 plane parallel or with the element surface state that is cooled;
Said cold box heat abstractor combines with the parts surface that is cooled; And after this cold box heat abstractor top is closed; The gas channel that flow-guiding radiation sheet 14 on each dissipating cover is constituted leads to the first blow vent 17a and the second blow vent 17b of said cold box heat abstractor, and occupies the half the of peripheral area; The half the of periphery area is the air intake surface 15 that is used for air intake, and second half is the outlet air surface 16 that is used for air-out;
Ccontaining said fan 13 in the middle of the said cold box heat abstractor, the flow-guiding radiation sheet 14 that is in said air intake surface 15 and said outlet air surface 16 both sides is respectively isolated the air intake and the air-out of fan, and respectively that the air-flow guiding is half the separately periphery outlet.
The utility model embodiment in terms of existing technologies, by two dissipating cover group boxing heat abstractors that each other fasten, two enclosed planar 2 up and down of this box type heat abstractor may be used to contact and paste and puts heater element, and element is played cooling effect.And; Be placed in air intake passage and the fin-shaped flow-guiding radiation sheet 4 that the air-out passage is exactly cold box heat sink interior of the fan 3 of cold box heat sink interior; Flow into air intake surface 5 and all pass through fin and cold box heat abstractor with the air that flows out outlet air surface 6; Produce heat exchange, so radiating effect doubles to the existing heat dissipation technology of cooling than the folk prescription of only drying with fan.
In addition, air intake surface 5 is in two peripheral different at different position and different of cold box heat abstractor fully with outlet air surface 6, and the gas circulation of air intake surface 5 and outlet air surface 6 is in consecutive identical flow direction, and the mixing that can not produce gas refluxes, and has further guaranteed radiating effect.
In addition, fan 3 is the leaf formula fan of flat pattern for external form, and opening through utilizing horizontal gas and flat fan combination combine the entire radiator highly compact.This is highly very little, has saved installing space, goes for led light source and cools off, and has solved the powerful technical bottleneck of LED lamp.
Description of drawings
Fig. 1 is the box type heat abstractor overall structure sketch map according to the utility model first embodiment;
Fig. 2 is the box type heat abstractor decomposition texture sketch map according to the utility model first embodiment;
Fig. 3 be according to the dissipating cover in the utility model first embodiment ccontaining the structural representation of half fan;
Fig. 4 is a kind of concrete application sketch map of box type heat abstractor in the LED illumination according to the utility model first embodiment;
Fig. 5 is the cold box heat abstractor overall structure sketch map according to the utility model second embodiment;
Fig. 6 is the cold box heat abstractor decomposition texture sketch map according to the utility model second embodiment.
The specific embodiment
First embodiment of the utility model relates to a kind of box type heat abstractor.As shown in Figure 1, this box type heat abstractor comprises: the first dissipating cover 1a and the second dissipating cover 1b, be placed in the inner fan 3 (as shown in Figure 2) of dissipating cover.Wherein, the first dissipating cover 1a and the second dissipating cover 1b can fasten each other, are the box type of platypelloid type behind the fastening; The upper and lower surfaces 2 of this box type heat abstractor is an enclosed planar; Around upper and lower enclosed planar is box type heat abstractor ventilating opening; Wherein occupying the first half the ventilating opening 7a of heat abstractor ventilating opening periphery is the air intake surface 5 that is used for air intake, and the second ventilating opening 7b of second half periphery is the outlet air surface 6 that is used for air-out.
Specifically, the enclosed planar up and down of box type heat abstractor is the form that matches with the element surface that is cooled, and that is to say, two sides 2 are all sealed and can be used for the contact subsides and put heater element up and down, so that element is played cooling effect.The first dissipating cover 1a and the second dissipating cover 1b adopt fixture to fasten, to guarantee both combining closely; Contact edge when the first dissipating cover 1a and the second dissipating cover 1b fasten each other conducts with effective its heat of improving along adopting the engagement design.
Be provided with fin-shaped flow-guiding radiation sheet 4 in the enclosed planar up and down of box type heat abstractor between the inboard and fan 3 perpendicular to end face.Center split flow fin 4 is in a side of said outlet air surface 6, and the flow-guiding radiation sheet 4 of remainder is in a side of air intake surface 5.The flow-guiding radiation sheet 4 that is in this air intake surface 5 and outlet air surface 6 respectively constitutes gas channels, the entering and the discharge of gas channel guiding fan, each half ventilating opening during gas channel is communicated to around the boxlike radiator respectively.Every flow-guiding radiation sheet 4 all leaves the space of ccontaining half fan 3.
Owing to the air intake passage of the fan 3 that is placed in heat sink interior and the fin 4 that the air-out passage is exactly heat sink interior; The air that flows into and flow out all passes through fin and heat abstractor; Produce heat exchange, so radiating effect doubles to the prior art of cooling than the folk prescription of only drying with fan.
In addition, the inside of the first dissipating cover 1a and the second dissipating cover 1b also is provided with the air intake that prevents fan and produces the separated face 8 of the air-flow that mixes with air-out, and is as shown in Figure 3.Because air intake surface 5 and outlet air surface 6 are in two different at different position and different of heat abstractor fully, gas circulation is in consecutive identical flow direction, and the mixing that can not produce gas refluxes.
What deserves to be mentioned is that the fan 3 in this embodiment is the leaf formula fan of flat pattern for external form.Utilize the opening of horizontal gas and flat fan combination, can make the entire radiator highly compact combine.This is highly very little, has saved installing space, goes for led light source and cools off, and has solved the powerful technical bottleneck of LED lamp.
In addition, the first dissipating cover 1a and the second dissipating cover 1b are provided with and are used to install and fix the installation screw 9 of element of being cooled, and this installation screw 9 not only can be used for installing and fixing of cooling element, also can reinforce the combination of two dissipating covers.And two dissipating covers can be to use aluminium, copper, and kirsite, heat-conducting plastic or the good material of other heat conductivilitys are processed.
A kind of concrete application of the box type heat abstractor of this embodiment in the LED illumination is as shown in Figure 4, fastens the back by two dissipating covers and forms.One end is near the led chip behind, and the other end contacts with electronic circuit board, and there is the heat conductive insulating layer centre.Behind the fan work, wind is inhaled into from a section of the side of boxlike radiator, behind the inner ventilation road, is discharged from from another section of opposition, thereby led chip is dispelled the heat and cools off.
Second embodiment of the utility model relates to a kind of cold box heat abstractor; Concrete structure is as shown in Figure 5; This cold box heat abstractor comprises: the first dissipating cover 11a and the second dissipating cover 11b, built-in fans 13, this built-in fans 13 is placed in the centre of this cold box heat abstractor, and is as shown in Figure 6.This fan 13 can be the leaf formula fan that external form is a flat pattern.
Wherein, the first dissipating cover 11a and the second dissipating cover 11b can fasten each other, and the first dissipating cover 11a and the second dissipating cover 11b have the flat board 12 of fan containing hole and form in the fin-shaped flow-guiding radiation sheet 14 of last lower plane with positioned vertical by the centre, as shown in Figure 6.Flow-guiding radiation sheet 14 external edge edges perhaps coincide with the element surface state that is cooled with dull and stereotyped 12 plane parallel.
This cold box heat abstractor combines with the parts surface that is cooled; And after this cold box heat abstractor top is closed; The gas channel that flow-guiding radiation sheet 14 on each dissipating cover is constituted leads to the first blow vent 17a and the second blow vent 17b of this cold box heat abstractor, and occupies the half the of peripheral area; The half the of periphery area is the air intake surface 15 that is used for air intake, and second half is the outlet air surface 16 that is used for air-out.The flow-guiding radiation sheet 14 that is in air intake surface 15 and outlet air surface 16 both sides is respectively isolated the air intake and the air-out of fan, and respectively that the air-flow guiding is half the separately periphery outlet.Be not difficult to find, when two dissipating covers fasten, two plane closely contacts each other, middle ccontaining fan 13, fan air intake/outtake surface and radiator plane parallel.In addition, the inside of the first dissipating cover 11a and the second dissipating cover 11b also is provided with the air intake that prevents fan and produces the separated face 18 of the air-flow that mixes with air-out.
Wherein, the first dissipating cover 11a and the second dissipating cover 11b can adopt fixture to fasten; The first dissipating cover 11a and the second dissipating cover 11b are provided with and are used to install and fix the installation screw 19 of element of being cooled, and this installation screw 19 not only can be used for installing and fixing of cooling element, also can reinforce the combination of two dissipating covers.And two dissipating covers can be to use aluminium, copper, and kirsite, heat-conducting plastic or the good material of other heat conductivilitys are processed.
Above-mentioned each embodiment is a specific embodiment of realizing the utility model, and in practical application, can be in form with on the details it is done various changes, and do not depart from the spirit and the scope of the utility model.
Claims (15)
1. a box type heat abstractor is characterized in that, comprises: first dissipating cover (1a) and second dissipating cover (1b), be placed in the inner fan (3) of said dissipating cover;
Wherein, said first dissipating cover (1a) and second dissipating cover (1b) can fasten each other, are the box type of platypelloid type behind the fastening; The upper and lower surfaces (2) of said box type heat abstractor is an enclosed planar; Around upper and lower enclosed planar is box type heat abstractor ventilating opening; Wherein occupy half the first ventilating opening (7a) of said heat abstractor ventilating opening periphery for being used for the air intake surface (5) of air intake, second ventilating opening (7b) of second half periphery is for being used for the outlet air surface (6) of air-out.
2. box type heat abstractor according to claim 1 is characterized in that, the enclosed planar up and down of said box type heat abstractor is the form that matches with the element surface that is cooled.
3. box type heat abstractor according to claim 1 is characterized in that, is provided with the fin-shaped flow-guiding radiation sheet (4) perpendicular to end face in the enclosed planar up and down of said box type heat abstractor between the inboard and said fan (3); Center split flow fin (4) is in a side of said outlet air surface (6), and the flow-guiding radiation sheet (4) of remainder is in a side of said air intake surface (5);
The flow-guiding radiation sheet (4) that is in said air intake surface (5) and outlet air surface (6) respectively constitutes gas channel, the entering and the discharge of said gas channel guiding fan, each half ventilating opening during gas channel is communicated to around the said boxlike heat abstractor respectively.
4. box type heat abstractor according to claim 3 is characterized in that every said flow-guiding radiation sheet (4) all leaves the space of ccontaining half said fan (3).
5. box type heat abstractor according to claim 3 is characterized in that, the inside of said first dissipating cover (1a) and second dissipating cover (1b) also is provided with the air intake that prevents fan and produces the separated face (8) of the air-flow that mixes with air-out.
6. according to each described box type heat abstractor in the claim 1 to 5, it is characterized in that said first dissipating cover (1a) and second dissipating cover (1b) adopt fixture to fasten.
7. according to each described box type heat abstractor in the claim 1 to 5, it is characterized in that said first dissipating cover (1a) and the contact edge of second dissipating cover (1b) when fastening each other are along adopting the engagement design.
8. according to each described box type heat abstractor in the claim 1 to 5, it is characterized in that said first dissipating cover (1a) and second dissipating cover (1b) are provided with and are used to install and fix the installation screw (9) of element of being cooled.
9. according to each described box type heat abstractor in the claim 1 to 5, it is characterized in that said first dissipating cover (1a) and second dissipating cover (1b) are processed by following arbitrary material:
Aluminium, copper, kirsite, heat-conducting plastic.
10. according to each described box type heat abstractor in the claim 1 to 5, it is characterized in that said fan (3) is the leaf formula fan of flat pattern for external form.
11. a cold box heat abstractor is characterized in that, comprises: first dissipating cover (11a) and second dissipating cover (11b), built-in fans (13);
Wherein, Said first dissipating cover (11a) and second dissipating cover (11b) can fasten each other, and said first dissipating cover (11a) and second dissipating cover (11b) are formed in the fin-shaped flow-guiding radiation sheet (14) of last lower plane by flat board (12) and positioned vertical that the centre has the fan containing hole;
Said flow-guiding radiation sheet (14) external edge edge coincide with the plane parallel of said flat board (12) or with the element surface state that is cooled;
Said cold box heat abstractor combines with the parts surface that is cooled; And after this cold box heat abstractor top is closed; The gas channel that flow-guiding radiation sheet (14) on each dissipating cover is constituted leads to first blow vent (17a) and second blow vent (17b) all around of said cold box heat abstractor, and occupies the half the of peripheral area; The half the of periphery area is the air intake surface (15) that is used for air intake, and second half is the outlet air surface (16) that is used for air-out;
Ccontaining said fan (13) in the middle of the said cold box heat abstractor, the flow-guiding radiation sheet (14) that is in said air intake surface (15) and said outlet air surface (16) both sides is respectively isolated the air intake and the air-out of fan, and respectively that the air-flow guiding is half the separately periphery outlet.
12. cold box heat abstractor according to claim 11 is characterized in that, said first dissipating cover (11a) and second dissipating cover (11b) adopt fixture to fasten.
13. cold box heat abstractor according to claim 11 is characterized in that, said first dissipating cover (11a) and second dissipating cover (11b) are provided with and are used to install and fix the installation screw (19) of element of being cooled.
14. cold box heat abstractor according to claim 11 is characterized in that, said first dissipating cover (11a) and second dissipating cover (11b) are processed by following arbitrary material:
Aluminium, copper, kirsite, heat-conducting plastic.
15. cold box heat abstractor according to claim 11 is characterized in that, said fan (13) is the leaf formula fan of flat pattern for external form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202600219U CN202432489U (en) | 2011-07-21 | 2011-07-21 | Box type heat radiation device and cold box heat radiation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202600219U CN202432489U (en) | 2011-07-21 | 2011-07-21 | Box type heat radiation device and cold box heat radiation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202432489U true CN202432489U (en) | 2012-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202600219U Expired - Fee Related CN202432489U (en) | 2011-07-21 | 2011-07-21 | Box type heat radiation device and cold box heat radiation device |
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| Country | Link |
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| CN (1) | CN202432489U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261629A (en) * | 2011-07-21 | 2011-11-30 | 上海信洁照明科技有限公司 | Box type heat sink and cold-box heat sink |
| CN109343679A (en) * | 2018-09-04 | 2019-02-15 | 深圳市宝德计算机系统有限公司 | A kind of CPU radiator |
-
2011
- 2011-07-21 CN CN2011202600219U patent/CN202432489U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261629A (en) * | 2011-07-21 | 2011-11-30 | 上海信洁照明科技有限公司 | Box type heat sink and cold-box heat sink |
| CN109343679A (en) * | 2018-09-04 | 2019-02-15 | 深圳市宝德计算机系统有限公司 | A kind of CPU radiator |
| CN109343679B (en) * | 2018-09-04 | 2021-08-31 | 深圳市宝德计算机系统有限公司 | CPU heat dissipation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120912 Termination date: 20190721 |
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| CF01 | Termination of patent right due to non-payment of annual fee |