CN103256582B - Gas heat convection heat dissipating structure of LED bulb - Google Patents
Gas heat convection heat dissipating structure of LED bulb Download PDFInfo
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- CN103256582B CN103256582B CN201310191518.3A CN201310191518A CN103256582B CN 103256582 B CN103256582 B CN 103256582B CN 201310191518 A CN201310191518 A CN 201310191518A CN 103256582 B CN103256582 B CN 103256582B
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- lampshade
- radiator
- cover
- led bulb
- shell
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Abstract
The invention relates to a gas heat convection heat dissipating structure of an LED bulb. The gas heat convection heat dissipating structure of the LED bulb comprises a radiator, an insulating connecting sleeve, a shade preventing sleeve, a lampshade and a lampshade top cover. A cavity and cooling fins are arranged in the radiator and a plurality of ventilated channels are formed in the radiator. An LED lamp panel is installed on the outer wall of a cavity body of the radiator. Gaps for cavity ventilation are arranged between the radiator and the insulating connecting sleeve, between the radiator and the lampshade, between the lampshade and the lampshade top cover and between the lampshade top cover and the shadow preventing sleeve. The gas heat convection heat dissipating structure of the LED bulb has the advantages that the structure of inner air ducts is added to a heat dissipating device of a product, so that air flow with the specific flow direction is generated inside the LED bulb, and the process of heat dissipation is accelerated; whole heat dissipating effect of the product is effectively improved, the appearance of the product maintains the shape of an ordinary bulb, so that the LED bulb is used for replacing a traditional bulb, popularization of the efficient lighting product is achieved, and energy is saved in wide application fields.
Description
Technical field
The invention belongs to LED field of electronic illumination, particularly relate to the air heat convection heat dissipation structure of LED bulb.
Background technology
In technical field of LED illumination, when product runs, the temperature of LED lamp bead is the most critical factor affecting product service life---LED lamp bead temperature drift, and product will shorten service life; Otherwise then product will effectively be continued service life in the reasonable scope.Therefore, the heat dispersion of product is the sport technique segment of LED illumination product most critical; All be provided with lampshade in the appearance of LED bulb, to make the light of LED evenly soft, but the existence of lampshade can affect the radiating effect of LED bulb; Usual LED illumination product is that the mode taking atural beat to spread is dispelled the heat, and by heat conduction to product thermal component outer surface, because there is the temperature difference between thermal component and air, heat is slowly diffused in air by thermal component; Corresponding LED bulb, it is low to there is radiating efficiency in this radiating mode, the defect of radiating effect difference.
Summary of the invention
The object of the invention is the technical scheme of the air heat convection heat dissipation structure proposing a kind of LED bulb.
To achieve these goals, technical scheme of the present invention is: the air heat convection heat dissipation structure of LED bulb, comprise LED lamp panel, radiator and insulation adapter sleeve, LED lamp panel is provided with illuminating LED lamp pearl, LED lamp panel is arranged on radiator sidewall, and radiator lower end connects insulation adapter sleeve, and insulation adapter sleeve connection bulb installs spiral shell head, radiator upper end is fixed with anti-shade cover, and a top cover snaps in the outside that lampshade is fixed on LED lamp panel by anti-shade cover; It is characterized in that, described radiator is the tubular structure heat-dissipating cavity that upper end opens, radiator inwall around tubular structure is provided with fin, fin longitudinally arranges the first ventilating duct forming up/down perforation along inwall, described LED lamp panel is close to installation around tubular structure radiator lateral wall, the lower end of described radiator is connected with shell and the inner sleeve of mutual sheathing, the upper/lower terminal of described shell opens wide, and is vertically arranged with dowel and forms the second ventilating duct that air is circulated at above-below direction between shell and inner sleeve; Described inner sleeve is sleeved on described insulation adapter sleeve and is connected to by radiator on insulation adapter sleeve, and the position that radiator lower end edge is connected with shell and inner sleeve is provided with through hole, and the first ventilating duct is communicated with the second ventilating duct by described through hole; Described shell upper port is connected with edge at the bottom of lampshade, at the bottom of described shell and lampshade, the joining place on edge is provided with gap notch, clearance groove interruption-forming second ventilating duct upper port air access way, another gap notch is provided with, another clearance groove interruption-forming second ventilating duct lower port air access way between shell in the bottom of the second ventilating duct and insulation adapter sleeve; The central authorities of lampshade upper end are provided with perforate, and lampshade is fixed on the outside of LED lamp panel by top cover by perforate; The inner chamber of described anti-shade cover is communicated with the first ventilating duct; Between top cover and anti-shade cover, sidewall is provided with ventilation gap, described ventilation gap is the air access way of first passage.
Further, described first ventilating duct is up-small and down-big taper tubular structure ventilation and heat cavity, and described second channel is up big and down small loop vent heat dissipation channel.
Further, described taper tubular is cross section is rectangle or polygonal Polyhedral taper tubular.
Further, the tapering of described taper is 5 degree to 7 degree.
Further, the lampshade upper cover that described lampshade comprises lampshade lower cover and interlocks with it, the bottom of described lampshade lower cover is provided with convex edge, and lampshade lower cover is crimped on the top of described radiator shell by a lampshade pressing plate, and described lampshade pressing plate is fixed by screws on the dowel of the bottom of radiator; Described lampshade pressing plate is sleeved on the outer wall on described radiator top, and the middle part of lampshade pressing plate raises up and the described through hole of radiator is communicated with described second ventilating duct.
Further, described lampshade lower cover and lampshade upper cover are by ultrasonic fusing, and described lampshade lower cover, lampshade upper cover and bottom radiator shell form the bulb shapes of a drop shape.
Further, described radiator is also fixed on described insulation adapter sleeve by draw-in groove, and the material of described radiator is ADC12 aluminium alloy.
Further, the transparent body of described anti-shade cover to be material be Merlon, described anti-shade cover is fixed on the upper end of described radiator by draw-in groove.
Further, described top cover is fixed on described anti-shade by draw-in groove and puts.
Further, the material of described lampshade, top cover is Merlon.
The invention has the beneficial effects as follows: in product heat abstractor, add inner air channel structure, make LED bulb inside produce specific stream to air-flow, thus accelerate the process of thermal diffusion; On the basis remaining product thermal component outer surface atural beat diffusion function, add product thermal component inner air directional convection heat sinking function, therefore effectively improve Total Product radiating effect, and make product design maintain the shape of common bulb, be beneficial to use LED bulb to substitute conventional bulb, realize the universal of efficient illumination product, in the energy consumption of application saving widely.
Below in conjunction with drawings and Examples, the present invention is described in detail.
Accompanying drawing explanation
Fig. 1 is the air heat convection heat dissipation structure schematic diagram of LED bulb of the present invention;
Fig. 2 is the air heat convection heat dissipation structure profile view of LED bulb of the present invention;
Fig. 3 is the interior views of the actual example of the present invention;
Fig. 4 is embodiment of the present invention heat sink part STRUCTURE DECOMPOSITION schematic diagram;
Fig. 5 is that a kind of using state downstream of the present invention moves towards schematic diagram;
Fig. 6 is that the another kind of using state downstream of the present invention moves towards schematic diagram.
Detailed description of the invention
Designing requirement for the radiator structure of LED bulb is: keep general lamp bulb shape and do not affect light source irradiation basis on realize the radiating effect of the best; To achieve these goals, the present invention adopts following scheme:
The air heat convection heat dissipation structure of LED bulb, as shown in Figures 1 to 6, comprise LED lamp panel 70, radiator 14 and insulation adapter sleeve 20, LED lamp panel is provided with illuminating LED lamp pearl 71, LED lamp panel is arranged on radiator sidewall, and radiator lower end connects insulation adapter sleeve, and insulation adapter sleeve connection bulb installs spiral shell head, radiator upper end is fixed with anti-shade cover 30, top cover 50 and snaps in the outside that lampshade 40 is fixed on LED lamp panel by anti-shade cover, wherein, described radiator is the tubular structure heat-dissipating cavity that upper end opens, radiator inwall around tubular structure is provided with fin 15, fin longitudinally arranges the first ventilating duct forming up/down perforation along inwall, described LED lamp panel is close to installation around tubular structure radiator lateral wall, it is close to by installing hole 17 and screw and is fixed on radiator lateral wall, the lower end of described radiator is connected with the shell 11 of mutual sheathing and the base plate heat sink 10 of inner sleeve 12 formation, described shell upper, lower both ends open, between shell and inner sleeve, be vertically arranged with dowel 13 form the second ventilating duct that air is circulated at above-below direction, described inner sleeve is sleeved on described insulation adapter sleeve and is connected to by radiator on insulation adapter sleeve, and the position that radiator lower end edge is connected with shell and inner sleeve is provided with through hole 16, and the first ventilating duct is communicated with the second ventilating duct by described through hole, described shell upper port is connected with edge at the bottom of lampshade, at the bottom of described shell and lampshade, the joining place on edge is provided with gap notch 3, clearance groove interruption-forming second ventilating duct upper port air access way, another gap notch 22 is provided with, another clearance groove interruption-forming second ventilating duct lower port air access way between shell in the bottom of the second ventilating duct and insulation adapter sleeve, the central authorities of lampshade upper end are provided with top cover perforate, described lampshade top cover is arranged on described anti-shade and puts, the transparent body of described anti-shade cover to be material be Merlon (PC), and the inner chamber of anti-shade cover is communicated with the first ventilating duct, between lampshade top cover and anti-shade cover, sidewall is provided with ventilation gap 52, described ventilation gap is the air access way of first passage, and the upper surface of lampshade top cover is arranged in the described top cover perforate of lampshade upper cover.
In order to increase the ventilation effect of ventilating duct, in embodiment, described first ventilating duct is up-small and down-big taper tubular structure ventilation and heat cavity, and described second channel is up big and down small loop vent heat dissipation channel.Two ventilating ducts are interconnected at great Kou Chu, make LED bulb no matter be upright use or stand upside down use, its passage on top due to opening always up-small and down-big, when inside has heat to produce, always there is a kind of effect of pulling out wind, facilitate heat exchange, reduce the temperature in lampshade, one of them preferred version is the tapering of described taper is 5 degree to 7 degree.
In embodiment, for the ease of layout and the installation of LED lamp panel, described taper tubular is cross section is rectangle or polygonal Polyhedral taper tubular.
In embodiment, the termination of exposing of described insulation adapter sleeve is provided with bulb installation spiral shell head 21;
In embodiment, for the ease of installing, described lampshade is divided into lampshade lower cover 41, lampshade upper cover 42, described lampshade lower cover is arranged on the top of bottom radiator, the shell of described bottom radiator and the end of lampshade lower cover, are along being connected, be provided with air passing clearances 43 at the joining place on the shell of described bottom radiator and the edge, the end of lampshade lower cover, the end of described lampshade upper cover, is connected along with the upper edge of lampshade lower cover, and the central authorities of lampshade upper cover upper end are provided with top cover perforate;
Described lampshade top cover is arranged on described anti-shade and puts, the gap 51 of ventilating air is provided with between lampshade top cover and anti-shade cover, the upper surface of lampshade top cover is arranged in the described top cover perforate of lampshade upper cover, is provided with the gap 52 of ventilating air between lampshade upper cover and lampshade top cover.
In one embodiment:
The bottom of described lampshade lower cover is provided with convex edge 44, and lampshade lower cover is crimped on the top of described radiator shell by a lampshade pressing plate 60, and described lampshade pressing plate is fixed on the dowel of the bottom of radiator by screw 61; Described lampshade pressing plate is sleeved on the outer wall of described radiator, lampshade pressing plate closes setting around radiator lateral wall, the middle part of lampshade pressing plate raises up, and makes (the second ventilating duct) between the inner sleeve of described through hole and bottom radiator bottom radiator and shell form the air duct be communicated with.
Described lampshade lower cover and lampshade upper cover are in junction 45 by ultrasonic fusing, and described lampshade lower cover, lampshade upper cover, lampshade top cover and bottom radiator shell form the bulb shapes of a drop shape.
The cavity that the tetrahedron upper end of described lumen of radiator to be cross section be quadrangle is open, the outer wall on described tetrahedron cavity top is provided with draw-in groove 19; Dop 23 is provided with in the upper end of insulation adapter sleeve, the position corresponding with the dop of described insulation adapter sleeve at radiator is provided with draw-in groove 18, radiator is connected by the dop 23 of described draw-in groove 18 with insulation adapter sleeve upper end, and the material of described radiator is ADC12 aluminium alloy.
Described anti-shade cover is that lower end is provided with the columnar structured of square boss, and four limits of described square boss are provided with dop 31, is provided with a circle draw-in groove 32 at the inwall on the top of described cylinder; Dop 31 on described anti-shade cover square boss and described radiator tetrahedron cavity top draw-in groove 19 be connected.
Described lampshade top cover is the circular lid that lower surface is provided with four card bases, and four card bases and the described anti-shade of described lampshade top cover lower surface overlap one of inwall and enclose draw-in groove 32 and be connected.
The material of described lampshade lower cover, lampshade upper cover, lampshade top cover is Merlon.
The present invention in the application, the devices such as the ac/dc conversion of LED are arranged in insulation adapter sleeve, LED lamp panel 70 is arranged on the outer wall of Polyhedral cavity of radiator, on the cavity that the heat that LED lamp bead produces is directly conducted to radiator and be passed to be attached thereto in put, be establish gelled gas channel in the inside of heat sink cavity, the radiating effect of LED can be significantly improved; In addition, partial heat can be diffused into the bottom of radiator, by shell and the radiating ribs heat conduction of bottom radiator, strengthens radiating effect further.
For the LED described in Fig. 5, the lampshade direction upwards of LED bulb is installed, when LED is when lighting, radiator absorbs the heat that LED lamp bead 71 sends, heat ambient air, by the air generation air-flow upwards heated, air 80 enters radiator with at the bottom of radiator along the passage 22 at the position be connected from insulation adapter sleeve, upwards flow through the space being provided with radiating ribs between radiator shell and inner sleeve, part hot-air flows out from the shell of radiator and the end of lampshade lower cover along the air passing clearances 43 of joining place, major part air enters multiaspect cavity through lampshade pressing plate from the perforate 16 of radiator multiaspect cavity bottom, air carries out heat exchange with fin in multiaspect cavity, by the gap 51 of air between lampshade top cover and anti-shade overlap of heating, gap 52 between lampshade upper cover and lampshade top cover is flowed out, take away the heat that LED bulb produces.
If described LED bulb is installed with the downward direction of lampshade, air-flow is by with the reverse flow in above-mentioned direction.
As shown in Figure 6, when described LED bulb with lampshade towards level direction install time, air 80 enters radiator from the passage 22 of the gap 43 between the radiator shell in below and lampshade lower cover and the adapter sleeve that insulate, major part air enters multiaspect cavity through lampshade pressing plate from the perforate 16 of radiator multiaspect cavity bottom, air carries out heat exchange with fin in multiaspect cavity, flowed out by the gap 52 of air through the gap 51 between lampshade top cover and anti-shade cover, between lampshade upper cover and lampshade top cover of heating, take away the heat that LED bulb produces; Part hot-air is had to flow out from the gap 43 between the radiator shell in top and lampshade lower cover.
Because LED lamp panel is arranged on the outer wall of Polyhedral cavity of radiator, can produce the more weak shade of brightness at lampshade top cover position, the anti-shade cover using light transmissive material to make can effectively weaken described shade.
What the thermal diffusion of usual LED illumination product was taked is natural diffuseness mode (this mode can be described as static radiating mode), although there is certain radiating effect, thermal diffusion speed is partially slow.And the thermal convection current heat radiation theoretical (this mode can be described as dynamic radiating mode) that the present invention proposes, effectively can improve thermal diffusion speed, namely within the unit interval, greatly increase the heat of diffusion, thus improve heat dispersion.Contrast existing LED illumination product stable state temperature rise test data, the stable state temperature rise according to the made finished product of the present invention reduces about 5 ~ 10 DEG C.
Claims (10)
- The air heat convection heat dissipation structure of 1.LED bulb, comprise LED lamp panel, radiator and insulation adapter sleeve, LED lamp panel is provided with illuminating LED lamp pearl, LED lamp panel is arranged on radiator sidewall, radiator lower end connects insulation adapter sleeve, insulation adapter sleeve connection bulb installs spiral shell head, and radiator upper end is fixed with anti-shade cover, and a top cover snaps in the outside that lampshade is fixed on LED lamp panel by anti-shade cover; It is characterized in that, described radiator is the tubular structure heat-dissipating cavity that upper end opens, radiator inwall around tubular structure is provided with fin, fin longitudinally arranges the first ventilating duct forming up/down perforation along inwall, described LED lamp panel is close to installation around tubular structure radiator lateral wall, the lower end of described radiator is connected with shell and the inner sleeve of mutual sheathing, the upper/lower terminal of described shell opens wide, and is vertically arranged with dowel and forms the second ventilating duct that air is circulated at above-below direction between shell and inner sleeve; Described inner sleeve is sleeved on described insulation adapter sleeve and is connected to by radiator on insulation adapter sleeve, and the position that radiator lower end edge is connected with shell and inner sleeve is provided with through hole, and the first ventilating duct is communicated with the second ventilating duct by described through hole; Described shell upper port is connected with edge at the bottom of lampshade, at the bottom of described shell and lampshade, the joining place on edge is provided with gap notch, clearance groove interruption-forming second ventilating duct upper port air access way, another gap notch is provided with, another clearance groove interruption-forming second ventilating duct lower port air access way between shell in the bottom of the second ventilating duct and insulation adapter sleeve; The central authorities of lampshade upper end are provided with perforate, and lampshade is fixed on the outside of LED lamp panel by top cover by perforate; The inner chamber of described anti-shade cover is communicated with the first ventilating duct; Between top cover and anti-shade cover, sidewall is provided with ventilation gap, described ventilation gap is the air access way of first passage.
- 2. the air heat convection heat dissipation structure of LED bulb according to claim 1, is characterized in that, described first ventilating duct is up-small and down-big taper tubular structure ventilation and heat cavity, and described second channel is up big and down small loop vent heat dissipation channel.
- 3. the air heat convection heat dissipation structure of LED bulb according to claim 2, is characterized in that, described taper tubular is cross section is polygonal Polyhedral taper tubular.
- 4. the air heat convection heat dissipation structure of LED bulb according to claim 2, is characterized in that, the tapering of described taper is 5 degree to 7 degree.
- 5. the air heat convection heat dissipation structure of LED bulb according to claim 1, it is characterized in that, the lampshade upper cover that described lampshade comprises lampshade lower cover and interlocks with it, the bottom of described lampshade lower cover is provided with convex edge, lampshade lower cover is crimped on the top of described radiator shell by a lampshade pressing plate, and described lampshade pressing plate is fixed by screws on the dowel of the bottom of radiator; Described lampshade pressing plate is sleeved on the outer wall on described radiator top, and the middle part of lampshade pressing plate raises up and the described through hole bottom radiator is communicated with described second ventilating duct.
- 6. the air heat convection heat dissipation structure of LED bulb according to claim 5, it is characterized in that, described lampshade lower cover and lampshade upper cover are by ultrasonic fusing, and described lampshade lower cover, lampshade upper cover and bottom radiator shell form the bulb shapes of a drop shape.
- 7. the air heat convection heat dissipation structure of LED bulb according to claim 1, is characterized in that, described radiator is also fixedly connected with described insulation adapter sleeve by draw-in groove, and the material of described radiator is ADC12 aluminium alloy.
- 8. the air heat convection heat dissipation structure of LED bulb according to claim 1, is characterized in that, the transparent body of described anti-shade cover to be material be Merlon, described anti-shade cover is fixed on the upper end of described radiator by draw-in groove.
- 9. the air heat convection heat dissipation structure of LED bulb according to claim 1, is characterized in that, described top cover is fixed on described anti-shade by draw-in groove and puts.
- 10. the air heat convection heat dissipation structure of LED bulb according to claim 1, is characterized in that, the material of described lampshade, top cover is Merlon.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310191518.3A CN103256582B (en) | 2013-05-22 | 2013-05-22 | Gas heat convection heat dissipating structure of LED bulb |
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| CN201310191518.3A CN103256582B (en) | 2013-05-22 | 2013-05-22 | Gas heat convection heat dissipating structure of LED bulb |
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| CN103256582A CN103256582A (en) | 2013-08-21 |
| CN103256582B true CN103256582B (en) | 2015-04-22 |
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| CN103953869B (en) * | 2014-05-20 | 2017-02-15 | 史杰 | Integral type LED (Light Emitting Diode) lamp bulb |
| CN104776333A (en) * | 2015-04-04 | 2015-07-15 | 福建永德吉灯业股份有限公司 | Conically-structured omnidirectional LED (Light-Emitting Diode) lamp |
| CN104763989B (en) * | 2015-04-27 | 2017-12-19 | 东莞市闻誉实业有限公司 | Street lamp heat radiator |
| CN104763957B (en) * | 2015-04-27 | 2017-03-01 | 东莞市闻誉实业有限公司 | Aeration type LED street lamp |
| CN105020613B (en) * | 2015-07-07 | 2017-10-20 | 江西台隆光电股份有限公司 | A kind of wide-angle luminescence LED |
| CN106369566A (en) * | 2016-09-30 | 2017-02-01 | 程云龙 | Bulb capable of improving radiating efficiency |
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| US20090316413A1 (en) * | 2008-06-23 | 2009-12-24 | Raytech International Corporation | Heat convection electromagnetic discharge lamp |
| TW201031859A (en) * | 2009-02-23 | 2010-09-01 | Taiwan Green Point Entpr Co | High efficiency luminous body |
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| CN202647332U (en) * | 2012-06-29 | 2013-01-02 | 苏州红壹佰照明有限公司 | Full-illumination-angle LED (Light-Emitting Diode) bulb lamp |
| CN102980063A (en) * | 2012-11-13 | 2013-03-20 | 黄超 | Light emitting diode (LED) lamp with convection channel penetrating through light source baseplate |
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