CN103148467A - Heat radiator for LED (light emitting diode) lamp - Google Patents
Heat radiator for LED (light emitting diode) lamp Download PDFInfo
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- CN103148467A CN103148467A CN2013100435278A CN201310043527A CN103148467A CN 103148467 A CN103148467 A CN 103148467A CN 2013100435278 A CN2013100435278 A CN 2013100435278A CN 201310043527 A CN201310043527 A CN 201310043527A CN 103148467 A CN103148467 A CN 103148467A
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Abstract
The invention relates to a heat radiator for an LED (light emitting diode) lamp. The heat radiator is made of heat conducting materials and comprises a tube body, a plurality of support components, heat radiation sheets, a plurality of first heat radiation fins and a plurality of heat radiation teeth, wherein the two ends of the tube body are provided with openings, in addition, a plurality of fixing holes are respectively formed in the two end surfaces of the tube body, each support component comprises a support plate, one side edge of the support plate is fixedly connected with the outer wall of the tube body and is arranged in the radial direction of the tube body, the middle parts of the heat radiation sheets are vertically connected with the side edge, opposite to the tube body, of the support plate so that the support plate and the heat radiation sheets simultaneously form a T-shaped structure, clamp grooves are arranged in the outer surfaces of the heat radiation sheets, the first heat radiation fins are fixedly arranged on the outer wall of the tube body, are uniformly distributed among the support components and are arranged in the radial direction of the tube body, the heat radiation teeth are uniformly distributed on the two opposite surfaces of the support plate and the first heat radiation fins, the height from the support plate to the outer wall of the tube body is greater than the height from the heat radiation fins to the outer wall of the tube body, and the heat radiation sheets are projected out of the heat radiation fins. The heat radiation performance of the heat radiator is good.
Description
[technical field]
The present invention relates to a kind of radiator of light fixture, particularly relate to a kind of radiator of LED light fixture.
[background technology]
LED is a kind of new type light source of tool development prospect of 21 century, the LED industry is considered to have most in recent years one of industry of development potentiality, everybody expects that LED enters general lighting market, become new lighting source, initiation along with Copenhagen meeting and low-carbon economy subject under discussion, LED will generally enter illumination market, and its economic output value is considerable.
The bottleneck Main Bottleneck of at present restriction LED light fixture development is heat radiation, and LED belongs to light emitting semiconductor device, and light emitting semiconductor device is along with the variation of self temperature, and its characteristic can significant change, and the rising of LED junction temperature can cause variation and the decay of each device performance.The theoretical life-span of LED can reach 100,000 hours, in actual the use, the junction temperature of LED is generally all higher, statistics shows that 70% components and parts inefficacy is because excess Temperature causes, 10 degrees centigrade of the every risings of temperature, its life-span will reduce half, and the rising of LED temperature also can affect to luminous efficiency and glow color, such as dominant wavelength red shift, fluorescent material Efficiency Decreasing etc.
[summary of the invention]
In view of above-mentioned condition, be necessary to provide that a kind of radiating efficiency is high, the radiator of lower-cost LED light fixture.
A kind of radiator of LED light fixture, described radiator is made by Heat Conduction Material, and described radiator comprises:
Cylindrical shell, its both ends open is equipped with a plurality of fixing holes on two end faces of described cylindrical shell, and described a plurality of fixing holes are used for being fixedly connected with upper bed-plate and lower bottom base;
A plurality of support components are evenly distributed on the outer wall of described cylindrical shell, and each support component comprises:
Gripper shoe, the one side is fixedly connected with the outer wall of described cylindrical shell, and along the radially setting of described cylindrical shell;
Fin, the vertical connection of side that its middle part is relative with described cylindrical shell with described gripper shoe, make described gripper shoe and described fin jointly form T shape structure, the outer surface of described fin is provided with draw-in groove, and described draw-in groove is used for installing pcb board and the lampshade of described LED light fixture;
A plurality of the first radiating fins are fixed on the outer wall of described cylindrical shell, and along the radially setting of described cylindrical shell, described a plurality of the first radiating fins are evenly distributed between described a plurality of support component;
A plurality of radiation tooths are evenly distributed on relative two surfaces of described the first radiating fin and described gripper shoe;
Wherein, the height of the outer wall of the described cylindrical shell of described gripper shoe distance protrudes from outside described radiating fin described fin greater than the height of the outer wall of the described cylindrical shell of described radiating fin distance.
Compared to traditional radiator, above-mentioned radiator has the following advantages at least:
(1) the cylindrical shell inside and outside wall of above-mentioned radiator is provided with radiating fin, to increase the surface area of radiator, improves the radiating efficiency of radiator.In addition, outer wall is provided with a plurality of support components for fixed L ED light source, a plurality of support components form the convection channel of nature, and the distribution of the fin of support component arranges and meets aerodynamic principle fully, and conduction, convection current, three kinds of thermaltransmission modes of radiation are well used.Therefore, the radiating efficiency of above-mentioned radiator is higher.
(2) be equipped with radiation tooth on relative two surfaces of the gripper shoe of the radiating fin of above-mentioned radiator and support component, to improve the radiating efficiency of radiator, can play the effect of reinforcement simultaneously, improve the structural strength of radiator.
Therein in embodiment, also comprise a plurality of the second radiating fins, described a plurality of the second radiating fin is located on the madial wall of described cylindrical shell equably, and along the radially setting of described cylindrical shell, and the height of the madial wall of described the second described cylindrical shell of radiating fin distance is less than the height of the outer wall of described the first described cylindrical shell of radiating fin distance.
In embodiment, relative two surface uniforms of described the second radiating fin are distributed with a plurality of described radiation tooths therein.
Therein in embodiment, each described support component also comprises a plurality of the 3rd radiating fins, described a plurality of the 3rd radiating fin is located at the inner surface of described fin, and lay respectively at the both sides of described gripper shoe, the height of described a plurality of the 3rd described fin of radiating fin distance is along with the spacing of described the 3rd radiating fin and described gripper shoe increases and reduces.
In embodiment, relative two surface uniforms of described the 3rd radiating fin are provided with a plurality of described radiation tooths therein.
In embodiment, the relative dual-side of the outer surface of described fin is respectively equipped with a T-shaped boss therein, and described T-shaped boss extends axially along described cylindrical shell, and described two T-shaped boss are common forms described draw-in groove.
In embodiment, described radiator adopts aluminium alloy to make therein, and described radiator is formed by a strip structure cutting, and described strip structure employing aluminium extruded technological forming.
In embodiment, the outer surface of described radiator is through forming one deck reflective film after anodized therein.
In embodiment, described gripper shoe, fin, the first radiating fin are the axially extended rectangular structure along described cylindrical shell, and extend to the other end from an end of described cylindrical shell therein.
In embodiment, described support component is eight therein, form three described the first radiating fins between every two described support components, and the spacing of the outer surface of every two relative support components is 80 millimeters.
[description of drawings]
Fig. 1 is the stereogram of radiator of the LED light fixture of embodiment of the present invention;
Fig. 2 is the side view of radiator shown in Figure 1;
Fig. 3 is the front view of radiator shown in Figure 1.
[specific embodiment]
For the ease of understanding the present invention, the below is described more fully the present invention with reference to relevant drawings.Provided preferred embodiment of the present invention in accompanying drawing.But the present invention can realize in many different forms, is not limited to embodiment described herein.On the contrary, provide the purpose of these embodiment be make the understanding of disclosure of the present invention more comprehensively thorough.
Need to prove, when element is called as " being fixed in " another element, can directly can there be element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may have simultaneously centering elements.Term as used herein " vertical ", " level ", " left side ", " right side " and similar statement are just for illustrative purposes.
Unless otherwise defined, all technology of using of this paper and scientific terminology are with to belong to the implication that those skilled in the art of the present invention understand usually identical.The term that uses in specification of the present invention herein is not intended to be restriction the present invention just in order to describe the purpose of specific embodiment.Term as used herein " and/or " comprise one or more relevant Listed Items arbitrarily with all combinations.
See also Fig. 1 to Fig. 3, the radiator 100 of the LED light fixture of embodiment of the present invention is made by Heat Conduction Material, is used for the LED light source of carrying LED light fixture.The LED light fixture can be LED wall lamp, LED corn lamp, specifically in the present embodiment, describes as an example of the LED corn lamp example.
Further, the outer surface of radiator 100 is through forming one deck reflective film after anodized.Due to the aluminium alloy good processability, can improve heat emissivity coefficient by anodic oxidation, thereby improve the thermal radiation capability on radiator 100 surfaces.
The both ends open of cylindrical shell 110, and be equipped with a plurality of fixing holes 111 on two end faces of cylindrical shell 110.A plurality of fixing holes 111 are used for being fixedly connected with upper bed-plate and lower bottom base.For example, fixing hole 111 is screw, and threaded fastener is spirally connected with this fixing hole 111 after passing upper bed-plate or lower bottom base.
Specifically in the illustrated embodiment, cylindrical shell 110 is cylindrical shell 110, and the upper outside protrusion of its madial wall is many to lug 113, and between every pair of lug 113, the interval arranges, and forms tool fixing hole 111 jaggy.The lug 113 of being located at due to employing on the madial wall of cylindrical shell 110 is spliced into this fixing hole 111, need not in the direct perforate in the end of cylindrical shell 110, thereby when cylindrical shell 110 is comparatively frivolous, guarantees that cylindrical shell 110 has higher structural strength.
Support component is a plurality of, and is evenly distributed on the outer wall of cylindrical shell 110.Each support component comprises gripper shoe 140 and fin 150.
One side of gripper shoe 140 is fixedly connected with the outer wall of cylindrical shell 110, and along the radially setting of cylindrical shell 110.Gripper shoe 140 can be rectangular structure.Specifically in the illustrated embodiment, gripper shoe 140 is long and narrow square plate, and its long limit is fixedly connected with the outer wall of cylindrical shell 110.
The vertical connection of side that the middle part of fin 150 is relative with cylindrical shell 110 with gripper shoe 140 makes gripper shoe 140 and the common T of formation shape of fin 150 structure, and the outer surface of fin 150 is provided with draw-in groove 151, and draw-in groove 151 is used for pcb board and the lampshade of mounted LED lamp tool.Specifically in the illustrated embodiment, fin 150 is long and narrow square plate, and it is perpendicular to the radially setting of cylindrical shell 110, and aligns with the axial line of symmetry of fin 150 in another long limit of gripper shoe 140.Spacing between a plurality of fin 150 is more than or equal to the width of fin 150, thus the wider convection channel of reservation, the radiating efficiency of raising radiator 100.
Further, the relative dual-side of the outer surface of fin 150 is respectively equipped with a T-shaped boss 153, and T-shaped boss 153 extends axially along cylindrical shell 110, and two common draw-in grooves 151 that form of T-shaped boss 153.
A plurality of the first radiating fins 120 are fixed on the outer wall of cylindrical shell 110, and along the radially setting of cylindrical shell 110.A plurality of the first radiating fins 120 are evenly distributed between a plurality of support components.Specifically in the illustrated embodiment, the first radiating fin 120 also can be long and narrow square plate, and the long limit of the first radiating fin 120 is fixedly connected with the outer wall of cylindrical shell 110.
Wherein, gripper shoe 140 greater than the height of radiating fin apart from the outer wall of cylindrical shell 110, protrudes from outside radiating fin fin 150 apart from the height of the outer wall of cylindrical shell 110.
A plurality of radiation tooths 130 are evenly distributed on relative two surfaces of the first radiating fin 120 and gripper shoe 140.The radiation tooth 130 that is distributed in relative two surfaces can be interspersed, and also can be symmetrical arranged.Specifically in the illustrated embodiment, the radiation tooth 130 that is distributed in relative two surfaces is symmetrical arranged.
Further, relative two surface uniforms of the second radiating fin 160 are distributed with a plurality of these radiation tooths 130, thereby further improve the radiating efficiency of radiator 100.
Each support component also comprises a plurality of the 3rd radiating fins 170, a plurality of the 3rd radiating fins 170 are located at the inner surface of fin 150, and lay respectively at the both sides of gripper shoe 140, a plurality of the 3rd radiating fins 170 apart from the height of fin 150 along with the spacing of the 3rd radiating fin 170 with gripper shoe 140 increases and reduce.Change sentence and speak, larger apart from the height of fin 150 near the 3rd radiating fin 170 of gripper shoe 140, less apart from the height of fin 150 away from the 3rd radiating fin 170 of gripper shoe 140.Specifically in the illustrated embodiment, the 3rd radiating fin 170 also can be long and narrow square plate, and wherein a long limit is connected with fin 150 is vertical.Gripper shoe 140 both sides respectively arrange two the 3rd radiating fins 170.
Further, relative two surface uniforms of the 3rd radiating fin 170 are provided with a plurality of these radiation tooths 130, thereby further improve the radiating efficiency of radiator 100.
Need to prove, gripper shoe 140, fin 150, the first radiating fin 120, the second radiating fin 160 and the 3rd radiating fin 170 all can be the axially extended rectangular structure along cylindrical shell 110, and extend to the other end from an end of cylindrical shell 110.In addition, quantity and the size of gripper shoe 140, fin 150, the first radiating fin 120, the second radiating fin 160 and the 3rd radiating fin 170 also can arrange according to the actual requirements, for example, support component is eight, form three the first radiating fins 120 between every two support components, and the spacing of the outer surface of every two relative support components is 80 millimeters.
Below with the structure of the radiator 100 of an above-mentioned corn lamp of specific embodiment explanation wherein.
The sectional dimension of the radiator 100 of LED light fixture is 80x80mm.The inner wall position that is positioned at cylindrical shell 110 on the cross section has the fixing hole 111 of 4, facilitates like this fixing of radiator 100 and top base and bottom base, just can will both fix by self-tapping screw.The inside and outside wall of cylindrical shell 110 is respectively equipped with the first radiating fin 120 and second radiating fin 160 of array arrangement, the first radiating fin 120 and the second radiating fin 160 are provided with a plurality of radiation tooths 130, increased like this efficiently radiates heat area in attractive in appearance, fin length and thickness are all to analyze through adjusting the optimal value that draws.Peripheral annular array at radiator 100 has 8 groups of support components stretching, has draw-in groove 151 inside and outside on each fin 150, and it is fixing that corn lamp pcb board and corn lamp PC lampshade all pass through this draw-in groove 151, has saved the loaded down with trivial details of screw locking.8 groups of support component annulars are uniform, and light so out is also more even; And the distribution of fin 150 arranges and meets aerodynamic principle fully, and conduction, convection current, three kinds of thermaltransmission modes of radiation are well used.
The main Natural Heat Convection by air of above-mentioned radiator 100, and use aluminium alloy 6063 or highly heat-conductive material, its coefficient of heat conduction is higher, good processability, process for treating surface is comparative maturity also, can improve heat emissivity coefficient by anodic oxidation, thereby improve the thermal radiation capability on radiator 100 surfaces.In addition, the shell of above-mentioned LED radiator adopts the radiating fin of integrated ring shaped array, and this radiator structure also is beneficial to air in attractive in appearance free convection has solved heat dissipation problem effectively.
Compared to traditional radiator, above-mentioned radiator 100 has the following advantages at least:
(1) cylindrical shell 110 inside and outside walls of above-mentioned radiator 100 are provided with radiating fin, to increase the surface area of radiator 100, improve the radiating efficiency of radiator 100.In addition, outer wall is provided with a plurality of support components for fixed L ED light source, a plurality of support components form the convection channel of nature, and the distribution of the fin 150 of support component arranges and meets aerodynamic principle fully, and conduction, convection current, three kinds of thermaltransmission modes of radiation are well used.Therefore, the radiating efficiency of above-mentioned radiator 100 is higher.
(2) be equipped with radiation tooth 130 on relative two surfaces of the gripper shoe 140 of the radiating fin of above-mentioned radiator 100 and support component, to improve the radiating efficiency of radiator 100, can play the effect of reinforcement simultaneously, improve the structural strength of radiator 100.
(3) above-mentioned radiator 100 adopts aluminium extruded type technique moulds, but one-shot forming, and the length that directly is cut into needs after shaping gets final product, thereby improves the production efficiency of radiator 100, reduces costs.Simultaneously, due to the radiator 100 length cutting according to actual needs formation of different length, to adapt to dissimilar LED light fixture, avoid die sinking again, increase cost.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.Should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. the radiator of a LED light fixture, is characterized in that, described radiator is made by Heat Conduction Material, and described radiator comprises:
Cylindrical shell, its both ends open is equipped with a plurality of fixing holes on two end faces of described cylindrical shell, and described a plurality of fixing holes are used for being fixedly connected with upper bed-plate and lower bottom base;
A plurality of support components are evenly distributed on the outer wall of described cylindrical shell, and each support component comprises:
Gripper shoe, the one side is fixedly connected with the outer wall of described cylindrical shell, and along the radially setting of described cylindrical shell;
Fin, the vertical connection of side that its middle part is relative with described cylindrical shell with described gripper shoe, make described gripper shoe and described fin jointly form T shape structure, the outer surface of described fin is provided with draw-in groove, and described draw-in groove is used for installing pcb board and the lampshade of described LED light fixture;
A plurality of the first radiating fins are fixed on the outer wall of described cylindrical shell, and along the radially setting of described cylindrical shell, described a plurality of the first radiating fins are evenly distributed between described a plurality of support component;
A plurality of radiation tooths are evenly distributed on relative two surfaces of described the first radiating fin and described gripper shoe;
Wherein, the height of the outer wall of the described cylindrical shell of described gripper shoe distance protrudes from outside described radiating fin described fin greater than the height of the outer wall of the described cylindrical shell of described radiating fin distance.
2. the radiator of LED light fixture as claimed in claim 1, it is characterized in that, also comprise a plurality of the second radiating fins, described a plurality of the second radiating fin is located on the madial wall of described cylindrical shell equably, and along the radially setting of described cylindrical shell, and the height of the madial wall of described the second described cylindrical shell of radiating fin distance is less than the height of the outer wall of described the first described cylindrical shell of radiating fin distance.
3. the radiator of LED light fixture as claimed in claim 2, is characterized in that, relative two surface uniforms of described the second radiating fin are distributed with a plurality of described radiation tooths.
4. the radiator of LED light fixture as claimed in claim 2, it is characterized in that, each described support component also comprises a plurality of the 3rd radiating fins, described a plurality of the 3rd radiating fin is located at the inner surface of described fin, and lay respectively at the both sides of described gripper shoe, the height of described a plurality of the 3rd described fin of radiating fin distance is along with the spacing of described the 3rd radiating fin and described gripper shoe increases and reduces.
5. the radiator of LED light fixture as claimed in claim 4, is characterized in that, relative two surface uniforms of described the 3rd radiating fin are provided with a plurality of described radiation tooths.
6. the radiator of LED light fixture as claimed in claim 4, it is characterized in that, the relative dual-side of the outer surface of described fin is respectively equipped with a T-shaped boss, and described T-shaped boss extends axially along described cylindrical shell, and the described draw-in groove of the common formation of described two T-shaped boss.
7. the radiator of LED light fixture as claimed in claim 1, is characterized in that, described radiator adopts aluminium alloy to make, and described radiator is formed by a strip structure cutting, and described strip structure adopts the aluminium extruded technological forming.
8. the radiator of LED light fixture as claimed in claim 7, is characterized in that, the outer surface of described radiator is through forming one deck reflective film after anodized.
9. the radiator of LED light fixture as claimed in claim 1, is characterized in that, described gripper shoe, fin, the first radiating fin are the axially extended rectangular structure along described cylindrical shell, and extend to the other end from an end of described cylindrical shell.
10. the radiator of LED light fixture as claimed in claim 9, it is characterized in that, described support component is eight, form three described the first radiating fins between every two described support components, and the spacing of the outer surface of every two relative support components is 80 millimeters.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310043527.8A CN103148467B (en) | 2013-01-31 | 2013-01-31 | The radiator of LED lamp |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310043527.8A CN103148467B (en) | 2013-01-31 | 2013-01-31 | The radiator of LED lamp |
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| CN103148467B CN103148467B (en) | 2016-06-15 |
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| CN201310043527.8A Expired - Fee Related CN103148467B (en) | 2013-01-31 | 2013-01-31 | The radiator of LED lamp |
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Cited By (5)
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| CN105736978A (en) * | 2016-04-18 | 2016-07-06 | 宁波东星电子有限公司 | LED (Light Emitting Diode) corn lamp |
| CN108633230A (en) * | 2018-06-26 | 2018-10-09 | 江苏英杰电子器件有限公司 | Radiator with excellent heat absorption performance |
| CN109391090A (en) * | 2018-09-29 | 2019-02-26 | 宁波诺丁汉大学 | Conducive to the stator, rotor and motor of heat dissipation |
| CN110360486A (en) * | 2019-07-12 | 2019-10-22 | 陈义武 | A kind of method for arranging and plant growth lamp of planting low-voltage lighting system |
| CN113654101A (en) * | 2021-07-17 | 2021-11-16 | 苟长洪 | Heat radiator |
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| CN105736978A (en) * | 2016-04-18 | 2016-07-06 | 宁波东星电子有限公司 | LED (Light Emitting Diode) corn lamp |
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| CN110360486A (en) * | 2019-07-12 | 2019-10-22 | 陈义武 | A kind of method for arranging and plant growth lamp of planting low-voltage lighting system |
| CN113654101A (en) * | 2021-07-17 | 2021-11-16 | 苟长洪 | Heat radiator |
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|---|---|
| CN103148467B (en) | 2016-06-15 |
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