CN103244933A - Light-emitting diode (LED) bulb with internal convection radiating structure and LED light source device - Google Patents
Light-emitting diode (LED) bulb with internal convection radiating structure and LED light source device Download PDFInfo
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- CN103244933A CN103244933A CN2013102057508A CN201310205750A CN103244933A CN 103244933 A CN103244933 A CN 103244933A CN 2013102057508 A CN2013102057508 A CN 2013102057508A CN 201310205750 A CN201310205750 A CN 201310205750A CN 103244933 A CN103244933 A CN 103244933A
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Abstract
The invention discloses an LED bulb with an internal convection radiating structure and an LED light source device. The LED bulb comprises a drive circuit (6), a lamp housing (8), a photo-permeable bulb housing (3), a radiator (7) and a heat transmission tube (2). The radiator (7) is connected with the lamp housing, the heat transmission tube (2) is connected onto the radiator, and an LED luminescent tube (4) is mounted on the heat transmission tube. A hole is opened at the top of the photo-permeable bulb housing (3), so that the top of the heat transmission tube is connected with an air flow net (1), and air penetrates through the air flow net and flows through the interior of the heat transmission tube continuously to form an air flow (A). Further, a circle of air flow groove (B) is arranged at the position where the radiator is connected with the photo-permeable bulb housing, and at least one air flow hole (C) can be arranged on the plastic lamp housing (8). The three kinds of air flow holes of A, B and C form a convection radiating channel.
Description
Technical field
The present invention relates to the LED bulb, particularly have the LED bulb of internal convection radiator structure.
Background technology
Along with the development of LED technology, LED uses more and more widely in all trades and professions, also has higher requirement for the LED bulb lamp of replacing conventional incandescent.But, because the ubiquitous 2 π illumination effects of LED make the lighting angle of LED bulb lamp can only accomplish to be difficult to reach the full angle illumination effect of conventional incandescent bulb about 160 degree.
Someone attempts utilizing led chip 4 π emitting characteristics to make the LED bulb lamp of 4 π, but because its no radiator structure supports, causes the led chip light decay serious, and the life-span is very short.
In order to solve heat dissipation problem, the LED bulb lamp of prior art mainly is with the metal passive heatsink that has radiating fin, for example Chinese patent bulletin CN100447483B, and United States Patent (USP) bulletin US6787999B, US7144135B etc.Also there is research to dispel the heat with liquid, for example Chinese patent is announced CN101649965B, Chinese patent open CN101561121A, CN101655189A etc. are placed on LED in the seal lamps cell-shell that is filled with the printing opacity heat-conducting liquid, and the liquid that adopts for example is water, oil, ethylene glycol or other inert fluid.Research is also arranged with gas heat radiation, for example the LED bulb of Chinese patent bulletin CN101813261B is with the anion nitrogen heat radiation that is sealed in the bulb shell; The for example LED bulb argon-mixed heat radiation of nitrogen that is sealed in the bulb shell of the open CN101706058A of Chinese patent again; Be filled with helium, hydrogen or helium hydrogen mixed gas as high heat-conducting gas in the transmissive bulb shell of the LED bulb of Chinese patent bulletin CN202281062U and CN202132734U.But above heat dissipating method cost height and its production technology are extremely complicated, cause the unstable properties of the extremely low and bulb of its production efficiency, are difficult to large-scale promotion production.
Summary of the invention
The objective of the invention is to solve above-mentioned deficiency, a kind of New LED bulb that has the internal gas flow radiator structure is provided.
According to an aspect of the present invention, provide a kind of LED bulb, comprised drive circuit, lamp housing and transmissive bulb shell, heat-transfer pipe is connected with the transmissive bulb shell, and heat-transfer pipe and LED luminous tube are housed in the transmissive bulb shell.Wherein, at the transmissive bulb shell aerodynamic-laid web is housed, and at least one airflow hole is arranged on the lamp housing, at the center position of radiator at least one airflow hole is arranged also, and radiator and transmissive bulb shell junction have airslide, thereby constitute heat loss through convection passage efficiently.
According to an aspect of the present invention, at least one top-portion apertures on the transmissive bulb shell aerodynamic-laid web or dustproof construction spare are installed.
According to a further aspect of the invention, luminous tube is opaque aluminium base, opaque and transparent or semitransparent ceramic bar luminous tube.Wherein, at ceramic bar luminous tube brush silver, in copper facing on the heat-transfer pipe or nickel plating, copper facing on radiator, by welding the three is connected, to strengthen triangular heat conduction.
According to a further aspect of the invention, form effective air-flow D with the radiator central through hole in the middle of the heat-transfer pipe.
According to a further aspect of the invention, luminous tube is installed on the radiator with becoming vertical mode, forms LED bulb lamp lighting angle greater than 320 degree.
Description of drawings
Fig. 1 is the structural representation of LED bulb lamp according to an embodiment of the invention;
Fig. 2 is the schematic diagram of the internal gas flow convection channel of LED bulb lamp according to an embodiment of the invention.
Label shown in the figure is: 1, aerodynamic-laid web; 2, heat-transfer pipe; 3, transmissive bulb shell; 4, LED luminous tube; 5, LED luminous tube welding PCB; 6, drive circuit; 7, radiator; 8, plastic cement lamp housing; 9, lamp holder; A, B, C, D, convection current.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is described in detail.
Fig. 1 is the structural representation of LED bulb lamp according to an embodiment of the invention.This LED bulb lamp comprises the transmissive bulb shell 3 that has aerodynamic-laid web 1; For example have barcode LED luminous tube 4(, ceramic bar luminous tube) heat-transfer pipe 2; LED luminous tube welding PCB5; Drive circuit 6, the plastic cement lamp housing 8(lamp housing 8 that has airflow hole also can adopt other material); And radiator 7.
But radiator 7 integral formings, material can be metal, for example aluminium sheet or aluminium alloy.The integrated design of radiator 7 can reduce thermal resistance, is beneficial to the led chip heat radiation.Embodiments of the invention are provided with airflow hole as the center at radiator 7, and form convection current (D) with air-flow in the heat-transfer pipe 2.Further, can be at radiator 7 welding heat-transfer pipes 2, at heat-transfer pipe 2 welding LED luminous tubes 4, so that LED luminous tube 4(in an embodiment, luminous tube 4 can be ceramic bar luminous tube) can closely be welded on the heat-transfer pipe 2, the heat of LED is effectively passed on the radiator 7.In an optional embodiment of the present invention, radiator and heat-transfer pipe can be one-body molded.
The heat that LED luminous tube 4 produces is effectively taken away in the formation of air-flow D, thereby reduces the temperature of LED luminous tube 4 greatly, effectively ensures the LED life-span.
In a preferred embodiment of the invention, plastic cement lamp housing 8 for example can have airflow hole at its periphery, and the hot-air of radiator 7 inside is distributed effectively outward, forms convection current C, be convenient to heat-transfer pipe 2 in convection current D form the cross-ventilation heat dissipation channel.This scheme can provide the convection current of the drive circuit 6 of flowing through, and can reduce the temperature of drive circuit 6.
In another preferred embodiment of the present invention, radiator 7 has airslide with the junction of transmissive bulb shell 3, and this effective heat loss through convection passage distributes the hot-air of transmissive bulb shell 3 inside effectively outward, forms convection current B.
As optional embodiment, can be at aerodynamic-laid web 1, and/or the airflow hole place at radiator 7 centers arranges Air Filter or dustproof construction spare.
Strip luminous tube 3 comprises support and rack-mount led chip.Can use transparent or semitransparent ceramic bar as the support of strip luminous tube.Also material such as available transparent or semitransparent composition metal, high heat conduction glass, high heat conduction plastic cement is made the support of strip luminous tube.Fig. 2 shows the schematic diagram according to the heat radiation convection channel of the LED bulb lamp of the embodiment of the invention.As shown in Figure 2, transmissive bulb shell 3, radiator 7, plastic cement lamp housing 8 threes' airflow hole forms at least one effective heat loss through convection passage, thereby effectively takes away the heat on the LED luminous tube 4, guarantees that LED stablizes output light flux and colour rendering.
Refer again to Fig. 1, in a preferred embodiment, by silver-colored at the back side of barcode LED luminous tube 4 brush, the mode by reflow soldering welds together itself and heat-transfer pipe 2 again, can further reduce thermal resistance, strengthens heat dispersion.About the ins and outs of preferred LED light-emitting section, but the Chinese patent application 201210543952.9 that the application reference people submits to.
In a preferred embodiment, the barcode LED luminous tube 4 as light source for example is installed on the heat-transfer pipe 2 vertically.The advantage of this kind mounting means is to make this bulb lamp lighting angle to increase to more than 320 degree, thereby can be made into the luminous bulb lamp of full angle.
The barcode LED luminous tube 4 that uses among the embodiment can be rack-mount as the LED of direct plugging-in LED, straw hat type LED, adopting surface mounted LED or COB packing forms.
That the transmissive bulb shell 2 that uses among the embodiment can be is transparent, milky white, the bulb shell of frosted, seven colours, or part bulb shell that the reflecting layer arranged or little prism, lenslet; The A type that is shaped as of described transmissive bulb shell, G type, R type, PAR type, T type, candle type, draw a kind of of tail type etc.; Electric connector is any one in E40, E27, E26, E14, GU or the existing bulb electric connector.
Among the embodiment of Fig. 1 and Fig. 2, transmissive bulb shell 3, radiator 7 and plastic cement lamp housing 8 all have airflow hole.It will be understood by those skilled in the art that the present invention should contain the multiple modification of such scheme.For example, only by at transmissive bulb shell 3 airflow hole being set, can improve heat dispersion to a great extent, this is applicable to the situation that luminous tube power is lower.And for example, though illustrated aerodynamic-laid web 1 is arranged on the end of transmissive bulb shell 3,, sidepiece one place or the many places of the transmissive bulb shell 3 that also can be arranged on are as long as this set can provide good heat loss through convection passage." aerodynamic-laid web " this statement not only comprises fine and closely woven network, also is applicable to the hole that single or multiple apertures are bigger, and the latter is more outstanding on mechanical strength.
The present invention is compatible with the led light source equipment of all size and standard.Therefore, protection scope of the present invention should contain the various led light source equipment that use this New LED bulb lamp simultaneously.
Industrial applicability
The radiator structure of LED bulb lamp of the present invention is simple, be convenient to processing, reliability height, be conducive to large-scale production and popularization, have bigger lighting angle and colour rendering index height, luminous efficiency height, can directly replace incandescent lamp and fluorescence class electricity-saving lamp and be used for common household or commercial lighting.
Each case study on implementation that the scope of protection of present invention is not limited to introduce herein, all various forms of conversion and replacement of doing based on claim scope of the present invention and description are all in the protection domain of patent of the present invention.
Claims (10)
1. a LED bulb is characterized in that, comprising:
Lamp holder (9);
Lamp housing (8);
Transmissive bulb shell (3);
Radiator (7) connects described lamp housing and described transmissive bulb shell;
Heat-transfer pipe (2) is arranged in the described transmissive bulb shell, and with described radiator thermal coupling; And
LED luminous tube (4) is arranged on the described heat-transfer pipe,
Wherein said transmissive bulb shell is provided with first ventilation device, and described radiator is provided with second ventilation device, and the gas channel of described heat-transfer pipe inside communicates with described first ventilation device and described second ventilation device, thereby forms the heat loss through convection passage.
2. LED bulb as claimed in claim 1 is characterized in that, described first ventilation device comprises aerodynamic-laid web (1), and this aerodynamic-laid web has at least one passage.
3. LED bulb as claimed in claim 1 is characterized in that, described second ventilation device comprises at least one passage.
4. LED bulb as claimed in claim 1 is characterized in that, at least one of described first ventilation device and second ventilation device Air Filter or dustproof construction spare is installed.
5. LED bulb as claimed in claim 1, it is characterized in that, described heat-transfer pipe vertically is arranged in the described transmissive bulb shell, and described first ventilation device is arranged on the end of described transmissive bulb shell, and described second ventilation device is arranged on the center of described radiator.
6. LED bulb as claimed in claim 1 is characterized in that, described lamp housing is provided with the depressed structure of threeway at the peripheral region near described radiator, thus the described second depressed heat loss through convection passage that is configured to threeway.
7. LED bulb as claimed in claim 6 is characterized in that, also comprises drive circuit (6), and wherein said radiator forms chamber to hold described drive circuit (6), and the described second depressed heat loss through convection passage that is configured to threeway is through described chamber.
8. LED bulb as claimed in claim 1 is characterized in that, described radiator is having airslide with described clear lamp cell-shell connection, thereby described airslide and described first ventilation device form the heat loss through convection passage.
9. LED bulb as claimed in claim 1 is characterized in that, described heat-transfer pipe and described radiator are one-body molded.
10. a led light source equipment comprises as each described one or more LED bulb lamps among the claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102057508A CN103244933A (en) | 2013-05-28 | 2013-05-28 | Light-emitting diode (LED) bulb with internal convection radiating structure and LED light source device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013102057508A CN103244933A (en) | 2013-05-28 | 2013-05-28 | Light-emitting diode (LED) bulb with internal convection radiating structure and LED light source device |
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| CN103244933A true CN103244933A (en) | 2013-08-14 |
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| CN2013102057508A Pending CN103244933A (en) | 2013-05-28 | 2013-05-28 | Light-emitting diode (LED) bulb with internal convection radiating structure and LED light source device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104344261A (en) * | 2014-10-30 | 2015-02-11 | 正屋(厦门)电子有限公司 | Bulb lamp structure |
| CN104791628A (en) * | 2015-04-21 | 2015-07-22 | 宋林祥 | LED lamp |
| CN104964185A (en) * | 2015-07-14 | 2015-10-07 | 江苏达伦电子股份有限公司 | LED bulb good in heat dissipation performance |
| WO2015180400A1 (en) * | 2014-03-26 | 2015-12-03 | 史杰 | Wide-angle luminous led bulb with cooling flue |
| WO2016058286A1 (en) * | 2014-10-17 | 2016-04-21 | 杨志伟 | Omnidirectional light emission led lamp |
| CN105940263A (en) * | 2014-01-29 | 2016-09-14 | 飞利浦照明控股有限公司 | LED bulb |
| CN106439537A (en) * | 2016-12-05 | 2017-02-22 | 武汉市福臣贸易有限公司 | Efficient heat dissipation type LED bulb |
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| CN201706242U (en) * | 2010-03-14 | 2011-01-12 | 林金城 | LED bulb |
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| KR101211402B1 (en) * | 2012-01-19 | 2012-12-12 | 이화랑 | The light emitting diode |
| CN102980071A (en) * | 2012-12-14 | 2013-03-20 | 浙江名芯半导体科技有限公司 | LED (light-emitting diode) bulb with heat-dissipating structure |
| CN203349223U (en) * | 2013-05-28 | 2013-12-18 | 浙江名芯半导体科技有限公司 | LED lamp bulb with internal convection heat-dissipation structure and LED light source device |
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| US20100242519A1 (en) * | 2007-12-07 | 2010-09-30 | Osram Gesellschaft Mit Beschraenkter Haftung | Heat sink and lighting device comprising a heat sink |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105940263A (en) * | 2014-01-29 | 2016-09-14 | 飞利浦照明控股有限公司 | LED bulb |
| WO2015180400A1 (en) * | 2014-03-26 | 2015-12-03 | 史杰 | Wide-angle luminous led bulb with cooling flue |
| WO2016058286A1 (en) * | 2014-10-17 | 2016-04-21 | 杨志伟 | Omnidirectional light emission led lamp |
| AU2015333473B2 (en) * | 2014-10-17 | 2018-04-26 | Gean Lighting Co., Limited | Omnidirectional light emission led lamp |
| US10197263B2 (en) | 2014-10-17 | 2019-02-05 | Gean Lighting Co., Limited | Omnidirectional light emission LED lamp |
| CN104344261A (en) * | 2014-10-30 | 2015-02-11 | 正屋(厦门)电子有限公司 | Bulb lamp structure |
| CN104791628A (en) * | 2015-04-21 | 2015-07-22 | 宋林祥 | LED lamp |
| CN104964185A (en) * | 2015-07-14 | 2015-10-07 | 江苏达伦电子股份有限公司 | LED bulb good in heat dissipation performance |
| CN106439537A (en) * | 2016-12-05 | 2017-02-22 | 武汉市福臣贸易有限公司 | Efficient heat dissipation type LED bulb |
| CN106439537B (en) * | 2016-12-05 | 2022-10-04 | 武汉市福臣贸易有限公司 | High-efficient heat dissipation type LED bulb |
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Application publication date: 20130814 |