CN204986927U - Active heat sink - Google Patents
Active heat sink Download PDFInfo
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- CN204986927U CN204986927U CN201520495107.8U CN201520495107U CN204986927U CN 204986927 U CN204986927 U CN 204986927U CN 201520495107 U CN201520495107 U CN 201520495107U CN 204986927 U CN204986927 U CN 204986927U
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- terminal pad
- pipeline
- heat sink
- active heat
- fin
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Abstract
The utility model relates to an active heat sink, include: first connection pad, the second connection pad that sets up with the axle center with first connection pad, is connected fin between first connection pad and second connection pad, pipeline that the one side that deviates from first connection pad with the second connection pad is connected, and the connecting plate of pipe connection and the heat radiation fins of setting between connecting plate and second connection pad, be equipped with the fan in the pipeline. The lateral wall of pipeline is equipped with a plurality of air vents, and the air vent staggers with heat radiation fins each other, and the connecting plate is equipped with the air inlet, and the second connection pad still is connected with the guide vane at the opening edge, and the guide vane be cyclic annular, and the guide vane is to the center extension of second connection pad and slope to the fan orientation. Above -mentioned active heat sink, owing to be equipped with the fan in the pipeline of radiator, the fan can be bloied to first connection pad direction. Accelerate radiator surface's circulation of air speed to improve the radiating efficiency.
Description
Technical field
The utility model relates to a kind of radiator structure of lighting, particularly relates to a kind of active heat sink.
Background technology
LED (LightEmittingDiode), i.e. semi-conductor electricity light source, light emitting diode, also referred to as semiconductor lamp, is a kind of electric light source without filament, is directly luminous energy electric energy conversion.
LED lamp affixed to the ceiling has energy-conservation, that the life-span is long feature, avoids the trouble often needing more to change the bulb, is subject to the favor of increasing user.But the heat dissipation problem of LED lamp affixed to the ceiling is also Important Problems, and heat dissipation problem badly influences light efficiency and the life-span of LED light source.The radiator heat-dissipation efficiency of traditional LED lamp affixed to the ceiling is low, causes LED light source temperature too high, thus has had influence on light efficiency and the life-span of LED.
Utility model content
Based on this, be necessary the heat dissipation problem for LED lamp affixed to the ceiling, provide a kind of LED of can be used for lamp affixed to the ceiling, guide vane extend to the second terminal pad center and tilt to fan directional, the active heat sink with more high cooling efficiency.
A kind of active heat sink, comprise: the second terminal pad that the first terminal pad is arranged with the first terminal pad concentric, be connected to the connecting plate that pipeline that the fin between the first terminal pad with the second terminal pad is connected with the one side that the second terminal pad deviates from the first terminal pad is connected with pipeline and the radiating fin be arranged between connecting plate and the second terminal pad, in pipeline, be provided with fan; Second terminal pad center is provided with opening, the radius of opening is equal with the radius of inner-walls of duct, radiating fin has multi-disc and is spaced setting, radiating fin is also connected with pipeline, and the sidewall of pipeline is provided with multiple passage, and passage and radiating fin mutually stagger and arrange, connecting plate is provided with air inlet, second terminal pad is also connected with guide vane at edge of opening, and guide vane is ring-type, and guide vane extends to the second terminal pad center and tilts to fan directional.
Wherein in an embodiment, the first terminal pad is rounded.
Wherein in an embodiment, passage is positioned at one end that pipeline is connected with the second terminal pad.
Wherein in an embodiment, the first terminal pad is rounded, and radiating fin has multi-disc and line circumferentially arranges centered by the axis of the first terminal pad.
Wherein in an embodiment, connecting plate is rounded.
Wherein in an embodiment, fin is provided with through hole.
Wherein in an embodiment, passage is square.
Wherein in an embodiment, the inside, one end that pipeline is connected with connecting plate is provided with support, and the one side of stent cover to the first terminal pad is provided with fan.
Above-mentioned active heat sink, first terminal pad connection can be used for being connected with external heat source and receives the heat of external heat source, heat can be transferred in fin, radiating fin and the second terminal pad further, because fin, radiating fin and the second terminal pad have larger area of dissipation and can be shed by heat faster.Owing to being provided with fan in the pipeline of radiator, fan can to the first terminal pad direction blowing.Because the wind of fan blowout can be blocked by the first terminal pad, wind is spread around the first terminal pad, and then direction that wind goes out can be changed and make it blow to fin, the radiating efficiency of fin can be improved.The wind that second terminal pad inward flange is also connected with the bootable part of guide vane enters between the second terminal pad and connecting plate by passage, accelerates the air passage rates between radiating fin, thus improves the radiating rate of radiating fin, can improve radiating efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of a preferred embodiment active heat sink;
Fig. 2 is the structural representation at another visual angle of active heat sink shown in Fig. 1;
Fig. 3 is the decomposing schematic representation of active heat sink shown in Fig. 1;
Fig. 4 is the structural representation of the fin of active heat sink shown in Fig. 1;
In accompanying drawing, the implication of each label is:
10-active heat sink;
110-substrate, 111-LED lamp pearl;
121-first terminal pad, 1211-bulge loop, 122-second terminal pad, 1221 planar portions, 1222-cambered surface portion, 1223-opening, 1224-guide vane, 123-fin, 1231-heating section, 1232-segmental arc, 1233-parallel-segment, 124-pipeline, 1241-passage, 1242-support, 125-connecting plate, 1251-air inlet, 126-radiating fin;
130-lampshade;
140-fan.
Detailed description of the invention
As shown in figures 1 and 3, wherein, Fig. 1 is the structural representation of a preferred embodiment active heat sink 10; Fig. 2 is the structural representation at another visual angle of active heat sink 10 shown in Fig. 1; Fig. 3 is the decomposing schematic representation of active heat sink 10 shown in Fig. 1.
Such as, a kind of active heat sink 10, comprise: the second terminal pad 122 that the first terminal pad 121 is arranged with the first terminal pad 121 concentric, be connected to the connecting plate 125 that pipeline 124 that the fin 123 between the first terminal pad 121 with the second terminal pad 122 is connected with the one side that the second terminal pad 122 deviates from the first terminal pad 121 is connected with pipeline 124 and the radiating fin 126 be arranged between connecting plate 125 and the second terminal pad 122, in pipeline 124, be provided with fan 140; Second terminal pad 122 center is provided with opening 1223, the radius of opening 1223 is equal with the radius of pipeline 124 inwall, radiating fin 126 has multi-disc and is spaced setting, radiating fin 126 is also connected with pipeline 124, the sidewall of pipeline 124 is provided with multiple passage 1241, passage 1241 and radiating fin 126 stagger mutually, connecting plate 125 is provided with air inlet 1251, second terminal pad 122 is also connected with guide vane 1224 at opening 1223 edge, guide vane 1224 is ring-type, and guide vane 1224 extends to the second terminal pad 122 center and tilts to fan 140 direction.
And for example, a kind of lamp affixed to the ceiling that have employed above-mentioned active heat sink 10, it comprises: be packaged with the substrate 110 of multiple LED lamp bead 111, the active heat sink 10 be connected with substrate 110, the lampshade 130 that is connected with active heat sink 10, the control panel be electrically connected with LED lamp bead 111.
Wherein, active heat sink 10 comprises: the first terminal pad 121, second terminal pad 122 be connected with substrate 110, be arranged on the connecting plate 125 that pipeline 124 that the fin 123 between the first terminal pad 121 with the second terminal pad 122 is connected with the second terminal pad 122 is connected with pipeline 124 and the radiating fin 126 be arranged between connecting plate 125 and the second terminal pad 122.Described second terminal pad 122 is positioned at described first terminal pad 121 and far deviates from described substrate 110 side.
In order to improve radiating effect, such as, substrate 110 is the substrate of aluminium matter, and its shape can be the various shape such as circular, oval, square, and preferably, substrate is circular.The shape of the first terminal pad 121 is corresponding with the shape of substrate 110, and in the present embodiment, the first terminal pad 121 is rounded, and such as it is circular discoid, and in other embodiments, the first terminal pad 121 can be square other shapes such as plate-like or oval plate-like.First terminal pad 121 edge is provided with bulge loop 1211, and bulge loop 1211 is rounded, and the inner side of bulge loop 1211 is also provided with the first holding section, and substrate 110 to be located in bulge loop 1211 and to be engaged with the first holding section.Meanwhile, substrate 110 is also fixedly connected with by screw with the first terminal pad 121.Also scribble heat conductive silica gel between substrate 110 and the first terminal pad 121, due to heat conductive silica gel have high-adhesion can and superpower heat-conducting effect, therefore it both can the connection of firmly substrate 110 and the first terminal pad 121, also can improve the efficiency of heat trnasfer.Lampshade 130 is in hemispherical shell, and the outside of the bulge loop 1211 of the first terminal pad 121 is provided with the second holding section, and lampshade 130 and the second holding section are connected together.Like this, the technique effect reached to make between the first terminal pad 121 and substrate 110 and compact conformation between the first terminal pad 121 and lampshade 130, also can reduce the thermal resistance between substrate 110 and the first terminal pad 121.Simultaneously by the mode be connected with screw that is connected together, easy disassembly.
In order to improve the radiating efficiency of fin 123, fin 123 is connected to the one side that the first terminal pad 121 deviates from substrate 110, and fin 123 has been spaced multiple on the first connecting plate 125.When the first terminal pad 121 is circular discoid, multi-disc fin 123 with the center line of the first terminal pad 121 for axis circumferentially arranges.Like this, the technique effect reached is: because the first connecting plate 121 directly contacts with substrate 110, therefore the first connecting plate 121 can fast absorptive substrate 110 the fin 123 that is directly connected with it of heat being transferred to fast on, multi-disc fin 123 is spaced to arrange can allow like this between multi-disc fin 123 wider heat-dissipating space, also can increase the area of dissipation of fin.
Simultaneously with reference to shown in figure 4, the structural representation of its fin 123 being active heat sink 10 shown in Fig. 1.Fin 123 comprises: heating section 1231, segmental arc 1232 and parallel-segment 1233.Heating section 1231 is straight sheet, and the length of heating section 1231 is less than the radius of the first terminal pad 121, can abdicate the space of near axis like this, to hold control panel etc. when fin 123 circumferentially arranges around the center of the first terminal pad 121.Heating section 1231 is connected with the first terminal pad 121 and receives the heat that the first terminal pad 121 transmits.Two limits of heating section 1231 are parallel to each other and are connected with the first terminal pad 121 and the second terminal pad 122 respectively.Segmental arc 1232 and parallel-segment 1233 are all only connected with the second terminal pad 122.Segmental arc 1232 is between heating section 1231 and parallel-segment 1233, and segmental arc 1232 has two arc-shaped sides, and is wherein connected with the second terminal pad 122, such as, as shown in Figure 4, and two different settings of arc-shaped side.Parallel-segment 1233 is positioned at the outermost section of fin 123, is also namely positioned at fin 123 away from first terminal pad 121 one end.Parallel-segment 1233 is while to be connected with the second terminal pad 122 and this limit is curved.The width of parallel-segment 1233 is larger than the width of heating section 1231, and the area ratio heating section 1231 of parallel-segment 1233 and the large of segmental arc 1232, this is conducive to the heat radiation of fin 123.The centre of fin 123 is also provided with through hole, and through hole can be arbitrary shape, and as oval, circular, square etc., preferably, through hole is circular.Through hole also can be obliquely through fin 123, fin 123 can be made like this to form more area of dissipation, can improve the radiating efficiency of fin 123.
In order to improve radiating rate, second terminal pad 122 center is provided with opening 1223, opening 1223 can be circular, the second terminal pad 122 be provided with the planar portions 1221 that is connected with heating section 1231 and with cambered surface portion 1222, cambered surface portion 1222 is connected with segmental arc 1232 and parallel-segment 1233.Segmental arc 1232 and parallel-segment 1233 are all only connected with cambered surface portion 1222.The outward flange radius of planar portions 1221 is equal with the radius of the first connecting plate 125 or be greater than the radius of the first connecting plate 125.The inward flange radius of planar portions 1221 is less than the radius of the first connecting plate 125.Second terminal pad 122 and the first terminal pad 121 concentric are arranged.Like this, the technique effect reached is: the opening 1223 that the second terminal pad 122 center is provided with can be conducive to the convection current of air, accelerates the velocity of liquid assets of air, thus improves radiating rate.Being provided with of planar portions 1221 is beneficial to the connection of the second terminal pad 122 and miscellaneous part, and being provided with of cambered surface portion 1222 is beneficial to increase area of dissipation, can improve radiating rate.
In order to improve radiating rate, pipeline 124 is connected with the planar portions 1221 of the second terminal pad 122, and the inwall radius of pipeline 124 is equal with the inward flange radius of planar portions 1221, and also namely the radius of pipeline 124 inwall is equal with the radius of opening 1223.The centre of pipeline 124 is provided with support 1242, and faced by support 1242, the one side of the first terminal pad 121 is provided with fan 140, and fan 140 can fin 123 direction blowing in the past.Radiating fin 126 has multi-disc and line is circumferentially spaced centered by the axle center of the second terminal pad 122.The sidewall of pipeline 124 is provided with multiple passage 1241, passage 1241 can be arbitrary shape, as oval, circular, square etc., preferably, passage 1241 is square, and each passage 1241 is all corresponding with the clearance space between multi-disc radiating fin 126.In the present embodiment, passage 1241 is arranged at pipeline 124 one end near the second terminal pad 122, and with the center of the second terminal pad 122 for axis circumferentially arranges, in other embodiments, passage 1241 can be located at the optional position of pipeline 124 sidewall.Also the wind that namely fan 140 blows out can be passed through passage 1241 and blows out, and wind can continue through the interval blowout between multi-disc radiating fin 126 afterwards.Like this, the technique effect reached is: radiating fin 126 is owing to having larger area of dissipation, therefore radiating rate can be improved, when fan 140 in pipeline 124 rotates, the air circulation in pipeline 124 can be accelerated, the setting of passage 1241 can make the wind blown out from fan 140 blow out through passage 1241, accelerates radiating rate.
In order to improving radiating effect, one end of pipeline 124 is connected with the second terminal pad 122, and the other end of pipeline 124 is connected with connecting plate 125.Connecting plate 125 is flat sided straight plate and rounded, and connecting plate 125 and pipeline 124 junction are provided with air inlet 1251.Air inlet 1251 also can be arranged on pipeline 124 and be connected one end with connecting plate 125.Connecting plate 125 deviates from radiating fin 126 one side and is provided with protruding connecting portion, and connecting portion is provided with screwed hole, and connecting plate 125 is connected with the external world by screwed hole.When lamp affixed to the ceiling or active heat sink 10 are connected with wall by connecting plate 125, protruding connecting portion can make air be entered in pipeline 124 by air inlet 1251, then is blown out by fan 140.Like this, effective air convection can be passed through, improving radiating effect.
In order to improve radiating efficiency, radiating fin 126 is connected with the second terminal pad 122, and radiating fin 126 another side is connected with connecting plate 125.Accordingly, radiating fin 126 is identical with the shape of the shape that the second terminal pad 122 connects and the second terminal pad 122, that radiating fin 126 and connecting plate 125 connect while be the rectilinear form identical with the shape of the second terminal pad 122.Radiating fin 126 is provided with multi-disc and line is circumferentially spaced centered by the axis of the second terminal pad 122.Radiating fin 126 is also connected with pipeline 124, and the passage 1241 that this junction and pipeline 124 are arranged mutually staggers and arranges.Like this, the technique effect reached is: the shape on radiating fin 126 both sides can adapt with the second terminal pad 122 and connecting plate 125, respectively to make structure compacter.Radiating fin 126 is connected passage 1241 with pipeline 124 and mutually staggers, and this can make the wind of blowout from passage 1241 can blow to radiating fin 126 surface, thus improves radiating efficiency further.
In order to improve radiating efficiency, planar portions 1221 inward flange of the second terminal pad 122 is also connected with guide vane 1224, and guide vane 1224 is circular.Guide vane 1224 extends internally and tilts to fan 140 direction, and the radius inside guide vane 1224 is 2/3rds of the radius outside guide vane 1224.Because fan 140 is dried to the first terminal pad 121 direction, arranging of guide vane 1224 can be blocked a part of wind and enter between the second terminal pad 122 and connecting plate 125 by wind guiding, accelerate the velocity of liquid assets of radiating fin 126 superficial air, improve the radiating efficiency of radiating fin 126.And the radius inside guide vane 1224 is 2/3rds of the radius outside guide vane 1224, this can make guide vane 1224 only block to stay the wind of a part to enter between the first terminal pad 121 and the second terminal pad 122, and make the wind of this part to fin 123, thus accelerate the radiating efficiency of fin 123.
Above-mentioned active heat sink 10, substrate 110 can produce heat due to LED lamp bead luminescence.Because substrate 110 is connected with the first terminal pad 121, therefore heat can pass in the first terminal pad 121, fin 123 and the second terminal pad 122.Heat can shed because there being larger area of dissipation by the first terminal pad 121, fin 123 and the second terminal pad 122 faster.Because fin 123 is arranged between the first terminal pad 121 and the second terminal pad 122, therefore be connected to heating section 1231 width between the first terminal pad 121 and the second terminal pad 122 to limit by the distance between the first terminal pad 121 and the second terminal pad 122, segmental arc 1232 and arranging of parallel-segment 1233 can make fin 123 effectively stretch out and the width constantly increasing fin 123, thus improve the area of fin 123, can radiating efficiency be improved.Second terminal pad 122 center is provided with opening 1223, and this can be conducive to the circulation of air between the first terminal pad 121 and the second terminal pad 122, thus accelerates the radiating rate of fin 123, improves radiating efficiency.
Above-mentioned active heat sink 10, be also connected with radiating fin 126 and connecting plate 125, radiating fin 126 is conducive to shedding of heat because there being larger area of dissipation.Owing to being provided with fan 140 in the pipeline 124 of active heat sink 10, fan 140 can to the first terminal pad 121 direction blowing.The wind blown out due to fan 140 can be blocked by the first terminal pad 121, and wind is spread toward the first terminal pad 121 surrounding, and then can change direction that wind goes out and make it blow to fin 123, can improve the radiating efficiency of fin 123.The wind that second terminal pad 122 inward flange is also connected with the bootable part of guide vane 1224 enters between the second terminal pad 122 and connecting plate 125 by passage 1241, accelerate the air passage rates between radiating fin 126, thus improve the radiating rate of radiating fin 126, can radiating efficiency be improved.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this description is recorded.
The above embodiment only have expressed preferred embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (9)
1. an active heat sink, it is characterized in that, comprise: the second terminal pad that the first terminal pad is arranged with described first terminal pad concentric, be connected to the connecting plate that pipeline that the fin between described first terminal pad with described second terminal pad is connected with the one side that described second terminal pad deviates from described first terminal pad is connected with described pipeline and the radiating fin be arranged between described connecting plate and described second terminal pad, in described pipeline, be provided with fan;
Described second terminal pad center is provided with opening, the radius of described opening is equal with the radius of described inner-walls of duct, described radiating fin has multi-disc and is spaced setting, described radiating fin is also connected with described pipeline, the sidewall of described pipeline is provided with multiple passage, described passage and described radiating fin mutually stagger and arrange, described connecting plate is provided with air inlet, described second terminal pad is also connected with guide vane at described edge of opening, described guide vane is ring-type, and described guide vane extends to described second terminal pad center and tilts to described fan directional.
2. active heat sink according to claim 1, is characterized in that, described first terminal pad is rounded.
3. active heat sink according to claim 1, is characterized in that, described passage is positioned at one end that described pipeline is connected with described second terminal pad.
4. active heat sink according to claim 1, is characterized in that, described first terminal pad is rounded, and described radiating fin has multi-disc and line circumferentially arranges centered by the axis of described first terminal pad.
5. active heat sink according to claim 1, is characterized in that, described connecting plate is rounded.
6. active heat sink according to claim 1, is characterized in that, described fin is provided with through hole.
7. active heat sink according to claim 1, is characterized in that, described passage is square.
8. active heat sink according to claim 1, is characterized in that, the inside, one end that described pipeline is connected with described connecting plate is provided with support, and the one side of described stent cover to described first terminal pad is provided with described fan.
9. active heat sink according to claim 1, is characterized in that, the radius inside described guide vane is 2/3rds of the radius outside described guide vane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520495107.8U CN204986927U (en) | 2015-07-08 | 2015-07-08 | Active heat sink |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520495107.8U CN204986927U (en) | 2015-07-08 | 2015-07-08 | Active heat sink |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204986927U true CN204986927U (en) | 2016-01-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520495107.8U Active CN204986927U (en) | 2015-07-08 | 2015-07-08 | Active heat sink |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204986927U (en) |
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2015
- 2015-07-08 CN CN201520495107.8U patent/CN204986927U/en active Active
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