CN102853405A - LED (light-emitting diode) radiator and LED lamp - Google Patents
LED (light-emitting diode) radiator and LED lamp Download PDFInfo
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- CN102853405A CN102853405A CN2011101787684A CN201110178768A CN102853405A CN 102853405 A CN102853405 A CN 102853405A CN 2011101787684 A CN2011101787684 A CN 2011101787684A CN 201110178768 A CN201110178768 A CN 201110178768A CN 102853405 A CN102853405 A CN 102853405A
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Abstract
The invention is suitable for the technical field of production of a lighting lamp radiator, and provides an LED (light-emitting diode) radiator and an LED lamp. The LED radiator comprises an aluminum base body; the aluminum base body includes a middle part of a hollow section; a plurality of radiating ribs are distributed on the surface of the aluminum base body; a copper element is also embedded in the aluminum base body; the LED lamp comprises a lamp shell, an LED light source, an aluminum base plate, and a radiator; the LED light source is arranged inside the lamp shell; the LED light source is arranged on the aluminum base plate; the radiator is fixedly connected with the aluminum base plate; and the radiator is the LED radiator. According to the LED radiator and the LED lamp provided by the invention, the copper element with higher thermal conductivity is embedded in the traditional aluminum base radiating body, so that the radiating effect of the radiator is greatly improved under the situation that area and size of a radiating sheet are not increased, thereby ensuring the service life of the LED inside the lamp.
Description
Technical field
The invention belongs to the lighting radiator and produce technical field, more particularly, relate to a kind of LED radiator and be provided with the LED light fixture of this LED radiator.
Background technology
The LED radiator mainly has two kinds now, and a kind of is the die casting aluminium radiator, and the thermal conductivity factor of die casting aluminium is lower, and such as ADC12, A380 etc., thermal conductivity factor is generally 96.2W/m.K; Another kind is the aluminium extruded section radiator, and such as 6063, thermal conductivity factor is generally 209W/m.K.Along with LED power improves constantly, particularly high-power integrated packaging COB LED requires more and more higher to radiator; And Natural Heat Convection most important be exactly effective area of dissipation, increasing heat radiation area is can be by the length and width that increase radiator high or increase the radiator diameter and highly realize, but LED tends to miniaturization, generally by increasing radiating ribs density and highly realizing; Owing to be Natural Heat Convection, radiating ribs density is increased to a certain degree just inoperative, and the too close radiating effect that can make on the contrary reduces, and being exactly in addition increases that the radiator height increases radiator area but the higher performance radiating effect of radiator height is lower.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of LED radiator and LED light fixture, the mode that is intended to overcome the area of dissipation of taking to increase radiator can correspondingly increase the defective of its volume, so that volume miniaturization and the radiating effect of radiator are good, thereby improve the LED life-span.
For solving the problems of the technologies described above, the technical scheme of employing of the present invention is: a kind of LED radiator is provided, comprises an aluminium base body, described aluminium base body has the pars intermedia of a hollow bulb, and its outer surface is distributed with a plurality of radiating ribs; In described aluminium base body, also be embedded with copper spare.
Further, be distributed with a plurality of vertical perforations at described pars intermedia, described copper spare is the identical copper bar of a plurality of and described perforation shape, and described copper bar one by one corresponding inserted is in described perforation and with described perforation and closely cooperates.
Advance optimally, described perforation shape size is identical and be equidistantly evenly at described pars intermedia and distribute.
Optimally, described perforation is that cross section is circular hole, and described copper bar is cylindrical.
Further, described copper spare is one to be inserted in the copper pipe of hollow bulb in the described pars intermedia, and the hollow bulb inwall of the outer wall of described copper pipe and described pars intermedia is and closely cooperates.
Further, described pars intermedia is cylindric.
Further, described radiating ribs is being the vortex shape distribution centered by the central shaft of described pars intermedia on the outer surface of described pars intermedia.
Further, described radiating ribs radial direction along described pars intermedia cross section on the outer surface of described pars intermedia is radial even distribution, and the cross section of each described radiating ribs is " Y " shape branching shape.
Further, the radiating ribs that distributes on the described pars intermedia outer surface comprises a major branch section and at least one branch part that links to each other with described major branch section respectively.The beneficial effect of LED radiator provided by the invention is: compare with this mode of the existing radiating efficiency that only utilizes increasing heat radiation area to improve radiator, under the prerequisite of equal large small size, this LED radiator is devoted to the structure optimization of the radiating ribs of radiator aluminum element body on the one hand, in aluminium base body, be embedded simultaneously the higher copper spare of thermal conductivity ratio aluminium, fast the heat in the light fixture is delivered on the aluminium base body with its close contact by copper spare, accelerated the heat-transfer rate of radiator, thereby improve the radiating efficiency of radiator, effectively reduce the lamp interior temperature, satisfy the heat radiation requirement of light fixture; Simultaneously, in the situation that satisfies identical radiating efficiency requirement, this design can make the compact in size of LED radiator.
The present invention also provides a kind of LED light fixture, and this LED light fixture comprises lamp housing, is located at the interior led light source of described lamp housing, the aluminium base of led light source and the radiator that is fixedly connected with described aluminium base are installed, and described radiator is LED radiator described above.
The beneficial effect of LED light fixture provided by the invention is: the aluminium base of this LED light fixture has been provided with LED radiator described above, so that the heat that this lamp interior produces can effectively distribute, it is too high that the temperature of lamp interior is unlikely to, reduce component aging speed, effectively guarantee the service life of the interior components and parts of light fixture such as LED; Simultaneously can be so that the compact in size of light fixture.
Description of drawings
The perspective view of the LED radiator that Fig. 1 provides for the embodiment of the invention one;
The plan structure schematic diagram of the LED radiator that Fig. 2 provides for the embodiment of the invention one;
The cross-sectional view of the LED radiator that Fig. 3 provides for the embodiment of the invention one;
The perspective view of the LED radiator that Fig. 4 provides for the embodiment of the invention two;
The plan structure schematic diagram of the LED radiator that Fig. 5 provides for the embodiment of the invention two;
The LED radiator that Fig. 6 provides for the embodiment of the invention two face structural representation;
The cross-sectional view of the LED radiator that Fig. 7 provides for the embodiment of the invention two;
The perspective view of the LED light fixture that Fig. 8 provides for the embodiment of the invention;
The cross-sectional view of the LED light fixture that Fig. 9 provides for the embodiment of the invention.
The specific embodiment
In order to make technical problem to be solved by this invention, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
Please in the lump referring to figs. 1 through Fig. 3, now LED radiator provided by the invention is described.Described LED radiator comprises aluminium base body 1, and described aluminium base body 1 has the pars intermedia 11 of hollow bulb, and its outer surface is distributed with a plurality of radiating ribs 12; In described aluminium base body 1, also be embedded with copper spare.This copper spare needs to be close contact with aluminium base body 1 and establishes mutually, is beneficial to heat transmission.The hollow space of intermediate portion 11 also can be directly with extraneous convection current and distribute heat.
LED radiator provided by the invention, by radiator aluminum element body 1 radiating ribs 12 being set increases its area of dissipation on the one hand, improve radiating effect in the mode of utilizing convection current, in aluminium base body 1, be embedded on the other hand the higher copper spare of thermal conductivity ratio aluminium, fast the heat in the light fixture is delivered on the aluminium base body 1 with its close contact by copper spare, accelerate the heat-transfer rate of radiator, thereby improved the radiating efficiency of radiator, satisfied the heat radiation requirement of light fixture; Simultaneously, in the situation that satisfies identical radiating efficiency requirement, therefore this structural design can make the compact in size of LED radiator owing to promoted radiating efficiency.
Further, also please in the lump referring to Fig. 1 to Fig. 3, a kind of specific embodiment as LED radiator provided by the invention, be distributed with a plurality of vertical perforations at described pars intermedia 11, described copper spare is the identical copper bar 13 of a plurality of and described perforation shape, and described copper bar 13 one by one corresponding inserted is in described perforation and with described perforation and closely cooperates.In the present embodiment, a plurality of longitudinally perforations are distributed in the pars intermedia 11, after copper bar 13 places these perforations, the end face of copper bar 13 is concordant with the end face of whole aluminium base body 1, like this, when this end face contacts with the aluminium base of the parts that need heat radiation such as LED, not only aluminium base body 1 self can be led the heat on the thermal source parts on the radiating ribs 12 by the mode of conduction and be distributed, simultaneously, each copper bar 13 is because thermal conductivity is higher than aluminium base body 1, so on can be at faster speed conducting heat to radiating ribs 12 on the aluminium base body 1 from end face, then heat distributes by the mode of convection current, the existence quickening heat of these copper bars 13 intersperses among the speed on the aluminium base body 1, has improved radiating efficiency.
Optimally, see also Fig. 2, as a kind of embodiment of LED radiator provided by the invention, described perforation shape size is identical and be equidistantly evenly at described pars intermedia 11 and distribute.It is also comparatively even that this uniform so that copper bar 13 is led aluminium base body 1 heat, dispels the heat thereby take full advantage of on the aluminium base body 1 each radiating ribs 12, improves the overall heat-sinking capability of radiator.
Optimally, referring to Fig. 1 and Fig. 2, as a kind of embodiment of LED radiator provided by the invention, described perforation is that cross section is circular hole, and described copper bar 13 is cylindrical.In the certain situation of cross section diagonal angle or opposite side full-size, cylindrical have larger lateral area and a floor space than prismatic, therefore, the contact-making surface of itself and aluminium base body 1 and with the contact-making surface of thermal source parts also will be larger, adopt circular hole and cylindric copper bar to be more conducive to the maximization of the capacity of heat transmission on the pars intermedia 11 of the limited aluminium base body 1 of size; The processing of circular port is also easier in addition, and assembly difficulty is relatively low, is beneficial to the making of radiator, simplifies technique.
Perhaps, further, please in the lump referring to Fig. 4 to Fig. 7, the another kind of specific embodiment as LED radiator provided by the invention, described copper spare is one to be inserted in the copper pipe 23 of described pars intermedia 21 interior hollow bulbs, and the hollow bulb inwall of the outer wall of described copper pipe 23 and described pars intermedia 21 is and closely cooperates.In the present embodiment, copper spare is made an integral barrel shape copper pipe 23 inwalls direct and pars intermedia 21 to be close to, the end face of copper pipe 23 is with after the thermal source component assemble contacts like this, on the one hand a part of heat can be passed to each radiating ribs 12 on the aluminium base body 1 with speed faster by the contact-making surface with aluminium base body 1, then distribute all extraneous by radiating ribs 12 convection current; On the other hand, copper pipe 23 inside itself are hollow structure, also can be directly and extraneous convection current and distribute heat, and the speed of distributing is faster than the hollow bulb of aluminium matter.
Further, see also Fig. 2 and Fig. 5, as a kind of optimization embodiment of LED radiator provided by the invention, described pars intermedia 11 (21) is cylindric.Because circle is Central Symmetry still not, and with any diameter axisymmetricly, therefore pars intermedia 11 (21) cylindraceous more can allow copper spare evenly distribute, so that the heat dispersion at each position of radiator is balanced, guarantees the maximization of overall heat-sinking capability; Reach the lifting of heat-sinking capability in the certain situation of radiator surface area, perhaps, in the certain situation of heat-sinking capability, allow the volume of radiator develop to miniaturization.
Further, see also Fig. 5, as a kind of specific embodiment of LED radiator provided by the invention, described radiating ribs 22 is being the vortex shape distribution centered by the central shaft of described pars intermedia 11 (21) on the outer surface of described pars intermedia 21.In the present embodiment, increase the size of radiating ribs in the situation that this vortex shape distribution can not increase in the gap between each adjacent radiating ribs 22, thereby strengthen the cooling surface area of radiating ribs, the further heat-sinking capability of heat radiation device.
Further, please in the lump referring to Fig. 1, Fig. 2 and Fig. 4, Fig. 5, a kind of specific embodiment as LED radiator provided by the invention, described radiating ribs 12 (22) radial direction along described pars intermedia 11 (21) cross sections on the outer surface of described pars intermedia 11 (21) is radial even distribution, and the cross section of each described radiating ribs 12 (22) is " Y " shape branching shape.In the present embodiment, the cross section of whole radiator is a heronsbill shape, and " Y " shape branching shape design of this radiating ribs is the cooling surface area of large radiating ribs further, the heat-sinking capability of heat radiation device.
Further, please in the lump referring to Fig. 2 and Fig. 5, as a kind of specific embodiment of LED radiator provided by the invention, the radiating ribs 12 (22) that distributes on described pars intermedia 11 (21) outer surfaces comprises a major branch section 121 (221) and at least one branch part 1211 (2211) that links to each other with described major branch section 121 (221) respectively.The heat radiation that can increase like this radiating ribs is area just, the heat dispersion of heat radiation device.
In addition, the circumference circle that consists of of the outer rim of described radiating ribs 12 (22) is that 3: 1 o'clock radiating effects are better with the inner circle diameter ratio of the hollow bulb of described pars intermedia 11 (21).
The present invention also provides a kind of LED light fixture.See also Fig. 8 and Fig. 9, described LED light fixture comprises that a lamp housing 100, is located at led light source 200 in the described lamp housing 100 and an aluminium base 300, and is located at radiator 400 on the described aluminium base 300, the surperficial close contact of the lower surface of radiator 400 and aluminium base 300, so that heat conduction is fully good, described radiator 400 is LED radiator described above.
LED light fixture provided by the invention, adopted LED radiator 400 described above on its aluminium base 300, the heat of led light source 200 is transmitted on the lower surface of the LED radiator 400 that is in contact with it by aluminium base 300, when on the copper spare that is transmitted to embedding 23, copper spare 23 just can be transmitted to heat on the aluminium base body 21 that is in contact with it fast, thereby quickening heat-transfer rate, improve the radiating effect of radiator, reduce the lamp interior temperature, slow down component aging speed, effectively guarantee the service life of the interior components and parts of light fixture such as LED; Simultaneously can be so that the compact in size of light fixture.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a LED radiator comprises an aluminium base body, it is characterized in that:
Described aluminium base body has the pars intermedia of a hollow bulb, and its outer surface is distributed with a plurality of radiating ribs;
In described aluminium base body, also be embedded with copper spare.
2. LED radiator according to claim 1, it is characterized in that: be distributed with a plurality of vertical perforations at described pars intermedia, described copper spare is the identical copper bar of a plurality of and described perforation shape, and described copper bar one by one corresponding inserted is in described perforation and with described perforation and closely cooperates.
3. LED radiator according to claim 2 is characterized in that: described perforation shape size is identical and be equidistantly at described pars intermedia and evenly distribute.
4. LED radiator according to claim 3 is characterized in that: described perforation is that cross section is circular hole, and described copper bar is cylindrical.
5. LED radiator according to claim 1 is characterized in that: described copper spare is one to be inserted in the copper pipe of hollow bulb in the described pars intermedia, and the hollow bulb inwall of the outer wall of described copper pipe and described pars intermedia is and closely cooperates.
6. according to claim 1 to 5 each described LED radiators, it is characterized in that: described pars intermedia is cylindric.
7. LED radiator according to claim 6 is characterized in that: described radiating ribs distributes being vortex shape on the outer surface of described pars intermedia centered by the central shaft of described pars intermedia.
8. LED radiator according to claim 6, it is characterized in that: described radiating ribs radial direction along described pars intermedia cross section on the outer surface of described pars intermedia is radial even distribution, and the cross section of each described radiating ribs is " Y " shape branching shape.
9. LED radiator according to claim 8 is characterized in that: the radiating ribs that distributes on the described pars intermedia outer surface comprises a major branch section and at least one branch part that links to each other with described major branch section respectively.
10. LED light fixture, comprise lamp housing, be located at the interior led light source of described lamp housing, the aluminium base of led light source and the radiator that is fixedly connected with described aluminium base are installed, it is characterized in that: described radiator is each described LED radiator of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101787684A CN102853405A (en) | 2011-06-29 | 2011-06-29 | LED (light-emitting diode) radiator and LED lamp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101787684A CN102853405A (en) | 2011-06-29 | 2011-06-29 | LED (light-emitting diode) radiator and LED lamp |
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| CN102853405A true CN102853405A (en) | 2013-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011101787684A Pending CN102853405A (en) | 2011-06-29 | 2011-06-29 | LED (light-emitting diode) radiator and LED lamp |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110665A (en) * | 2014-08-05 | 2014-10-22 | 无锡市翱宇特新科技发展有限公司 | LED lamp radiator |
| CN104390167A (en) * | 2014-12-11 | 2015-03-04 | 东莞市闻誉实业有限公司 | Lamp |
| CN105180123A (en) * | 2015-08-06 | 2015-12-23 | 厦门大学 | Led plastic radiator |
| CN105715968A (en) * | 2016-02-29 | 2016-06-29 | 柳州格瑞斯光电科技有限公司 | Heat radiator of LED lamp |
| CN105736962A (en) * | 2016-02-29 | 2016-07-06 | 柳州格瑞斯光电科技有限公司 | Led lamp |
| CN111503546A (en) * | 2020-04-20 | 2020-08-07 | 深圳市海洋王照明工程有限公司 | Lamp fitting |
| CN115013791A (en) * | 2022-07-04 | 2022-09-06 | 中山市荣烁电气有限公司 | Aluminum-copper combined radiator and preparation method thereof |
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| CN102095130A (en) * | 2010-11-11 | 2011-06-15 | 金光翰 | LED street lamp with high heat radiation and brightness and easy replacement |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110665A (en) * | 2014-08-05 | 2014-10-22 | 无锡市翱宇特新科技发展有限公司 | LED lamp radiator |
| CN104390167A (en) * | 2014-12-11 | 2015-03-04 | 东莞市闻誉实业有限公司 | Lamp |
| CN104390167B (en) * | 2014-12-11 | 2016-08-17 | 东莞市闻誉实业有限公司 | Light fixture |
| CN105180123A (en) * | 2015-08-06 | 2015-12-23 | 厦门大学 | Led plastic radiator |
| CN105715968A (en) * | 2016-02-29 | 2016-06-29 | 柳州格瑞斯光电科技有限公司 | Heat radiator of LED lamp |
| CN105736962A (en) * | 2016-02-29 | 2016-07-06 | 柳州格瑞斯光电科技有限公司 | Led lamp |
| CN111503546A (en) * | 2020-04-20 | 2020-08-07 | 深圳市海洋王照明工程有限公司 | Lamp fitting |
| CN115013791A (en) * | 2022-07-04 | 2022-09-06 | 中山市荣烁电气有限公司 | Aluminum-copper combined radiator and preparation method thereof |
| CN115013791B (en) * | 2022-07-04 | 2024-03-15 | 中山市荣烁电气有限公司 | Aluminum-copper combined radiator and preparation method thereof |
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Application publication date: 20130102 |