CN102518999A - High-power light-emitting diode (LED) bulb with forced cooling structure - Google Patents
High-power light-emitting diode (LED) bulb with forced cooling structure Download PDFInfo
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- CN102518999A CN102518999A CN2012100031886A CN201210003188A CN102518999A CN 102518999 A CN102518999 A CN 102518999A CN 2012100031886 A CN2012100031886 A CN 2012100031886A CN 201210003188 A CN201210003188 A CN 201210003188A CN 102518999 A CN102518999 A CN 102518999A
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Abstract
The invention discloses a high-power light-emitting diode (LED) bulb with a forced cooling structure. The inner side of the front end part of a shell is provided with a suspended air isolating circular tube; the circle center of the suspended air isolating circular tube is overlapped with the circle center of a lens compressing ring and the central axis of a shell; a sun tooth-shaped aluminum radiator is fixed on the inner rear part of the suspended air isolating circular tube; an annular air inlet channel is formed between the outer end part of the shell and the suspended air isolating circular tube; and an annular air outlet channel is formed between the suspended air isolating circular tube, the lens compression ring and annular radiating fins of the sun tooth-shaped aluminum radiator. Air holes of the annular air inlet channel and the annular air outlet channel are formed at the front end of the shell of the bulb, and are directly communicated with an indoor large spatial environment, so that heat generated by high-power LED chips in a lamp can be transferred to the large spatial environment at the minimal radiator area and the highest radiating speed, and the high-power LED bulb has the outstanding advantages of high radiating speed, simple manufacturing technological process, convenience for installation, high production efficiency, and low cost, and can completely meet the radiating requirement of high-power LED bulbs with the power of less than 100W.
Description
Technical field
The present invention relates to the high-powered LED lamp technical field, particularly a kind of high-power LED bulb with forced heat radiation structure.
Background technology
Along with the LED manufacturing technology develops fast, the LED lamp becomes one of new light sources product of tool development prospect in this century with advantage such as its high-performance, compactness, long-life, environmental protection and energy saving, freedom from repairs, operation costs be low.On the light source that great power LED is applied to throw light on; Its greatest difficulty is exactly how to solve the problem of heat radiation fully; Industry also has the scheme of many great power LED coolings; As adopt the radiator of overlarge area or in radiator, add method such as copper heat pipe, but the required heatsink weight of such scheme is heavy, volume is big, because the radiator area of every 1W can not be less than 60C ㎡.Show that according to the LED product data sheet several important performance characteristics such as luminous flux, forward voltage, color and reliability, the life-span etc. of LED lighting bulb link with temperature closely.A general character of all LED lighting bulbs also is based on a semi-conductive characteristic, is exactly that provisional but recoverable drift can take place above-mentioned several performance parameters along with operating ambient temperature rises.When temperature rose, luminous flux can descend, and forward voltage also can descend, and colour temperature will change.Show that according to related data the LED maximum junction temperature must not surpass maximum rating, when junction temperature point temperature surpasses absolute maximum rating when LED moves, possibly cause permanent performance drift and irremediable infringement the performance of products parameter.Great power LED is applied on the lighting bulb; The heat sink conception of high reliability is a key design; It should optimize the heat transmission and the radiating mode of lamp interior consciously; For high-power LED lamp, in the finite size, space of regulation, adopting radiating rate forced convertion heat sink conception the fastest, that the heat abstractor volume is minimum is most economical, practical solution.
For the radiator that adopts large tracts of land aluminium radiator or adding heat pipe in the traditional or common Natural Heat Convection scheme; Heat sink finally can't its heat being delivered in the environment that its LED produces gone; And can only heat is delivered in the light fixture or be delivered in the space of local finite, thereby radiating effect be fine.
Summary of the invention
The object of the present invention is to provide a kind of high-power LED bulb with forced heat radiation structure; It can be accomplished from bulb leading section air intake; Through forced convertion heat radiation in the bulb; The heat that bulb is inner is seen off from the bulb leading section, has made full use of the heat sinking function of the outside large space environment of bulb, realizes the quick heat radiating of large-power lamp.
Technical solution proposed by the invention is such:
A kind of high-power LED bulb with forced heat radiation structure; Comprise lamp holder 1, shell 2 and in shell 2 from after power supply changeover device 10, fan 3, sun dentation aluminium radiator 9, metal substrate 7, led chip 8, lens 6, lens carrier 5, lens pressure ring 4, power supply changeover device 10 be housed forward successively be fixed on shell 2 internal collars; Fan 3 is packed on sun dentation aluminium radiator 9 inner side ends; Metal substrate 7 is packed on sun dentation aluminium radiator 9 outside end faces; Metal substrate 7 lateral surfaces are welded with one group of led chip 8; Each led chip 8 outside is equipped with lens 6, and one group of lens 6 is inlaid on the lens carrier 5, and lens pressure ring 4 is locked on the lens carrier 5 and be fixed on the metal substrate 7; Said shell 2 necks have one group of ventilation slot; Said shell 2 leading section inboards are provided with suspension type at a distance from wind pipe 11, and this suspension type overlaps with the central hub of shell 2 at a distance from the center of circle of wind pipe 11 and the center of circle of described lens pressure ring 4, and said sun dentation aluminium radiator 9 is fixed on said suspension type rear portion in wind pipe 11; Said shell 2 outer ends and said suspension type are at a distance from forming annular air intake passage 12 between the wind pipe 11, said suspension type forms annular air-out passage 13 between the ring-type fin 9-1 of wind pipe 11 and said lens pressure ring 5 and sun dentation aluminium radiator 9.
Said suspension type is provided with one group of supporting rib 17 in suspension type at a distance from wind pipe 11 and said shell 2 integral molded plastic moulding between wind pipe 11 and shell 2.Said suspension type is a separate piece at a distance from wind pipe 11, through screw and the unsettled inboard place of shell 2 leading sections that is fixed on of holder.Suspension type anterior equidistance in wind pipe 11 is provided with 1～6 elasticity button 14.Said suspension type rearward end in wind pipe 11 or 21 is provided with spacing ring 15.
Said lens carrier 5 central authorities have air vent 16.Metal substrate 7 central authorities have the air vent with the air vent of lens carrier 5 16 couplings.
Said suspension type adopts plastics or metal material to process at a distance from wind pipe 11.The one group of led chip 8 that is welded on metal substrate 7 lateral surfaces is arranged with annular or rectangle or array-like.Said metal substrate 7 adopts aluminium or copper or the little material of other thermal resistances to process.When power supply changeover device 10 was installed on the light fixture outside, the out-put supply of this power supply changeover device 10 was supplied power to fan 3 and one group of led chip 8 through lamp holder 1 and lead.
Compared with prior art, the present invention has following remarkable result:
(1) under the bulb appearance and size condition of standard code, can't adopt the natural heat dissipation mode during the existing LED bulb power that adopts the natural heat dissipation mode >=7W; Even adopt the fan forced heat radiation; Also because its louvre or radiating groove are only opened on bulb shell, and these LED bulbs all are to be inlaid on the ceiling or to be installed in the Down lamp shell basically, except that the bulb front end with the large space environment contacts; Remainder all is positioned at ceiling or the limited enclosure space of Down lamp shell; Thereby its radiating effect is poor, reaches the LED bulb of 25～100W for power, can't satisfy especially that its heat radiation requires.The suitable power scope of high-power LED bulb of the present invention is 5～100W; It can satisfy the heat radiation requirement of such high-power LED bulb; Mainly be to be provided with suspension type at a distance from the wind pipe at the bulb shell leading section, it can with the shell integral structure, also can the suspension of separate piece form be fixed in the shell leading section; Annular air intake passage and annular air-out passage so just in the bulb front portion, have been formed; Large space ambient room temperature air gets into from annular air intake passage and drains into the large space environment outside the lamp from annular air-out passage through the heat of fan forced-ventilated wind with aluminium radiator, realizes the purpose of great power LED forced heat radiation, has satisfied the heat radiation requirement of great power LED fully.At this moment, the weight of employed aluminium radiator and area of dissipation only be adopt the natural heat dissipation mode aluminium radiator the weight area about 10%, reduced the consumptive material and the volume of aluminium radiator widely, and then made the whole bulb smaller volume, handsome in appearance.
(2) forced heat radiation structure that the present invention adopted, process for making is simple, easy for installation, production efficiency is high, cost is lower, satisfies the heat radiation requirement of the high-power LED bulb of the following power of 100W fully.
Description of drawings
Fig. 1 is the front view of the high-power LED bulb with forced heat radiation structure of one embodiment of the invention.
Fig. 2 is A-A cutaway view of Fig. 1.
Fig. 3 is lamp holder shown in Figure 2, shell mechanism sketch map.
Fig. 4 is a fan structure sketch map shown in Figure 2.
Fig. 5 is a sun dentation aluminium radiator structural representation shown in Figure 2.
Fig. 6 is lens carrier shown in Figure 2, lens pressure ring assembly structural representation.
Fig. 7 is a lens arrangement sketch map shown in Figure 2.
Fig. 8 is the front view of the high-power LED bulb with forced heat radiation structure of another embodiment of the present invention.
Fig. 9 is B-B cutaway view of Fig. 8.
Figure 10 is lamp holder shown in Figure 9, shell mechanism sketch map.
Figure 11 is that independent suspension type shown in Figure 9 is at a distance from wind circular tube structure sketch map.
Figure 12 is lens carrier shown in Figure 9, lens pressure ring assembly structural representation.
Figure 13 is that lens carrier shown in Figure 9, lens pressure ring, sun dentation radiator, independent suspension type are at a distance from wind pipe modular construction sketch map.
Shown in the figure, 1, lamp holder; 2, shell; 3, fan; 4, lens pressure ring; 5, lens carrier; 6, lens; 7, metal substrate; 8, led chip; 9, sun dentation radiator 9-1, fin; 10, power supply changeover device; 11, suspension type is at a distance from the wind pipe; 12, annular air intake passage; 13, annular air-out passage; 14, elasticity button; 15, spacing ring; 16, air vent; 17, supporting rib; 21, independent suspension type is at a distance from the wind pipe; 22, holder.
The specific embodiment
Through following embodiment the present invention is done further to set forth in detail.
Referring to Fig. 1～shown in Figure 7, a kind of high-power LED bulb with forced heat radiation structure is by lamp holder 1, shell 2, power supply changeover device 10, fan 3, sun dentation radiator 9, metal substrate 7, led chip 8, lens 6, lens carrier 5, lens pressure ring 4 and be located at the inboard suspension type of shell 2 leading sections and form at a distance from wind pipe 11.Power supply changeover device 10 to 8 power supplies of one group of led chip is installed in shell 2 internal collars, and these shell 2 neck circumference are covered with one group of ventilation slot, as the usefulness of power supply changeover device 10 heat radiations.Fan 3 is packed on sun dentation aluminium radiator 9 inner side ends, and metal substrate 7 is packed on sun dentation aluminium radiator 9 outside end faces.Metal substrate 7 lateral surfaces are welded with one group of led chip 8 of arranging with annular or rectangle or matrix-like; Each led chip 8 outside is equipped with lens 6; One group of lens 6 setting-in is fixed on the lens carrier 5; Lens pressure ring 4 is locked on lens carrier 5, and lens carrier 5 is fastened on the metal substrate 7 through screw.Suspension type said and that shell 2 integral molded plastics form overlaps with the center of circle and shell 2 central hub of lens pressure ring 4 at a distance from the center of circle of wind pipe 11; Sun dentation aluminium radiator 9 is fixed on suspension type rear portion in wind pipe 11 through being located at suspension type at a distance from four elasticity buttons 14 of wind pipe 11; And it is spacing by the spacing ring 15 that is located at suspension type rearward end in wind pipe 11; Like this; Just formed an annular air intake passage 12 in shell 2 outer ends and suspension type at a distance between the wind pipe 11, between the annular fin 9-1 of wind pipe 11 and lens pressure ring 5, sun dentation aluminium radiator 9, just formed an annular air-out passage 13 in suspension type.Annular air intake passage 12 air inlets and annular air-out passage 13 air outlets are all at shell 2 front ends; Directly connect with indoor large space environment; Thereby; Can will organize the heat that high-power LED chip 8 produced with the radiator area of minimum, the fastest radiating rate and be passed in the large space environment, thereby obtain significant radiating effect, also solve the heat sink problem that high-power LED chip 8 is produced fully.Suspension type is provided with some supporting ribs 17 between wind pipe 11 and shell 2 leading section inwalls, making can unsettled being fixed in shell 2 leading sections at a distance from wind pipe 11.Be provided with 1～6 elasticity button 14 at suspension type anterior equidistance in wind pipe 11, present embodiment is arranged with 4 elasticity buttons 14.Lens carrier 5 central authorities have air vent 16, and metal substrate 7 central authorities also have air vent.Shell 2 is with suspension type is heat-resisting at a distance from 11 employings of wind pipe, flame retardant plastics is injection molded.Metal substrate 7 adopts aluminium sheet or copper coin or the little metal material of other thermal resistances to process.
Another kind has the structure of high-power LED bulb of forced heat radiation structure referring to Fig. 8～shown in Figure 13.The high-powered LED lamp bubble structure difference of it and embodiment 1 is: suspension type is independent processing at a distance from wind pipe 11; With shell 2 be not that integral molded plastic forms, thereby it is an independent suspension type at a distance from wind pipe 21; Portion's outer wall is provided with 2～6 holders 22 of equidistant placement in its back-end; Through screw independent suspension type is fastened on shell 2 front inner wall at a distance from wind pipe 21, thereby, annular air intake passage 12 and annular air-out passage 13 formed.Independent suspension type is independently processed by aluminium alloy or heat-proof combustion-resistant plastics at a distance from wind pipe 21.Metal substrate 7 is not established center vent with lens carrier 5.All the other each parts and mounting structure thereof are identical with embodiment 1 basically.
Claims (10)
1. high-power bulb with forced heat radiation structure; Comprise lamp holder (1), shell (2) and in shell (2) from after power supply changeover device (10), fan (3), sun dentation aluminium radiator (9), metal substrate (7), led chip (8), lens (6), lens carrier (5), lens pressure ring (4), power supply changeover device (10) be housed forward successively be fixed on shell (2) internal collar; Fan (3) is packed on sun dentation aluminium radiator (9) inner side end; Metal substrate (7) is packed on the end face of sun dentation aluminium radiator (9) outside; Metal substrate (7) lateral surface is welded with one group of led chip (8); Each led chip (8) outside is equipped with lens (6); One group of lens 6 is inlaid on the lens carrier (5); Lens pressure ring (4) is locked and goes up and be fixed on the metal substrate (7) at lens carrier (5); Said shell (2) neck has one group of ventilation slot; It is characterized in that: said shell (2) leading section inboard is provided with suspension type at a distance from wind pipe (11), and this suspension type overlaps with the central hub of shell (2) at a distance from the center of circle of wind pipe (11) and the center of circle of described lens pressure ring (4), and said sun dentation aluminium radiator (9) is fixed on said suspension type at a distance from the interior rear portion of wind pipe (11); Said shell (2) outer end and said suspension type are at a distance from forming annular air intake passage (12) between the wind pipe (11), said suspension type forms annular air-out passage (13) between the ring-type fin (9-1) of wind pipe (11) and said lens pressure ring (5) and sun dentation aluminium radiator (9).
2. the high-power LED bulb with forced heat radiation structure according to claim 1; It is characterized in that: said suspension type is provided with one group of supporting rib (17) in suspension type at a distance from wind pipe (11) and said shell (2) integral molded plastic moulding between wind pipe (11) and shell (2).
3. the high-power LED bulb with forced heat radiation structure according to claim 1 is characterized in that: said suspension type is a separate piece at a distance from wind pipe (21), through screw and the unsettled inboard place of shell (2) leading section that is fixed on of holder.
4. according to claim 1 or 2 or 3 described high-power LED bulbs with forced heat radiation structure, it is characterized in that: said suspension type anterior equidistance in wind pipe (11 or 21) is provided with 1～6 elasticity button 14.
5. according to claim 1 or 2 or 3 described high-power LED bulbs with forced heat radiation structure, it is characterized in that: said suspension type is provided with spacing ring (15) at a distance from the interior rearward end of wind pipe (11 or 21).
6. the high-power LED bulb with forced heat radiation structure according to claim 1 is characterized in that: said lens carrier (5) central authorities have air vent (16).
7. the high-power LED bulb with forced heat radiation structure according to claim 1 is characterized in that: said metal substrate (7) central authorities have the air vent with the air vent (16) of lens carrier (5) coupling.
8. the high-power LED bulb with forced heat radiation structure according to claim 3 is characterized in that: said independent suspension type adopts plastics or metal material to process at a distance from wind pipe (21).
9. the high-power LED bulb with forced heat radiation structure according to claim 1 is characterized in that: the one group of led chip (8) that is welded on metal substrate (7) lateral surface is arranged with annular or rectangle or array-like.
10. the high-power LED bulb with forced heat radiation structure according to claim 1; It is characterized in that: when said power supply changeover device (10) was installed on the bulb outside, the out-put supply of this power supply changeover device (10) was supplied power to fan (3) and one group of led chip (8) through lamp holder (1) and lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100031886A CN102518999B (en) | 2012-01-07 | 2012-01-07 | High-power light-emitting diode (LED) bulb with forced cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100031886A CN102518999B (en) | 2012-01-07 | 2012-01-07 | High-power light-emitting diode (LED) bulb with forced cooling structure |
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| Publication Number | Publication Date |
|---|---|
| CN102518999A true CN102518999A (en) | 2012-06-27 |
| CN102518999B CN102518999B (en) | 2013-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012100031886A Expired - Fee Related CN102518999B (en) | 2012-01-07 | 2012-01-07 | High-power light-emitting diode (LED) bulb with forced cooling structure |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101509653A (en) * | 2009-03-09 | 2009-08-19 | 张春涛 | High power LED lamp structure with fan |
| CN201382280Y (en) * | 2009-01-23 | 2010-01-13 | 周焕球 | LED illumination device |
| CN201892065U (en) * | 2010-10-22 | 2011-07-06 | 深圳市众明半导体照明有限公司 | Lighting fixture and LED lamp bulb with fan |
| CN102121612A (en) * | 2011-02-28 | 2011-07-13 | 深圳市众明半导体照明有限公司 | LED bulb with fan and lamp |
-
2012
- 2012-01-07 CN CN2012100031886A patent/CN102518999B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201382280Y (en) * | 2009-01-23 | 2010-01-13 | 周焕球 | LED illumination device |
| CN101509653A (en) * | 2009-03-09 | 2009-08-19 | 张春涛 | High power LED lamp structure with fan |
| CN201892065U (en) * | 2010-10-22 | 2011-07-06 | 深圳市众明半导体照明有限公司 | Lighting fixture and LED lamp bulb with fan |
| CN102121612A (en) * | 2011-02-28 | 2011-07-13 | 深圳市众明半导体照明有限公司 | LED bulb with fan and lamp |
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| CN102518999B (en) | 2013-09-25 |
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Granted publication date: 20130925 Termination date: 20160107 |