CN206419903U - A kind of radiator of high-power COB light source LED lamp - Google Patents
A kind of radiator of high-power COB light source LED lamp Download PDFInfo
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- CN206419903U CN206419903U CN201720056987.8U CN201720056987U CN206419903U CN 206419903 U CN206419903 U CN 206419903U CN 201720056987 U CN201720056987 U CN 201720056987U CN 206419903 U CN206419903 U CN 206419903U
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- light source
- cob light
- radiator
- power cob
- thermal resistance
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Abstract
The utility model discloses a kind of radiator of high-power COB light source LED lamp, it includes aluminium wing radiator, low diffusion thermal resistance raised line and high power COB light source, the back side of the upper plate of the aluminium wing radiator is provided with the radiating fin of arrangement, the center of the upper plate of the aluminium wing radiator is installed by the high power COB light source, the low diffusion thermal resistance raised line is arranged between two pieces of radiating fins of arrangement and passed through directly over the back side of the high power COB light source, the external diameter of the low diffusion thermal resistance raised line is wider than the external diameter of the high power COB light source, the heat of the high power COB light source is diffused into whole fins by the low diffusion thermal resistance raised line.The radiator of high-power COB light source LED lamp of the present utility model a kind of improves the luminous efficiency and service life of LED lamp significantly.
Description
Technical field
The utility model is related to the technical field for belonging to lighting lamp, more specifically to a kind of high-power COB light
The radiator of source LED lamp.
Background technology
LED/light source is novel energy-conserving light source in recent years extensively using various occasions, high with light efficiency, and colour rendering is good, no frequency
Dodge, instantaneous starting, the features such as not being afraid of vibrations, especially with long-life advantage, is non-maintaining green energy conservation light source.Due to
COB structures LED/light source has the advantages that light efficiency is high and radiator structure is simple compared with discrete LED/light source, and existing LED lamp is big
Amount uses this kind of light source.Two kinds of LED/light sources can equally generate heat with other light sources, and the energy for probably having 75% can become heat, and
And the luminous efficiency of the light source and the temperature of life-span and light source are seriously negatively correlated, temperature is higher, and luminous efficiency is lower, and the life-span also gets over
It is low.LED lamp is mainly designed to heat dissipation design, tries to reduce the temperature of LED/light source.Heat is mainly dissipated by convection type
It is dealt into air, the effect for improving heat loss through convection generally by increasing heat radiation area is fin area method.It is general to use
The light fixture of discrete LED/light source, because distribution of light sources relatively dissipates, is evenly distributed on the base plate of radiator with fin, whole wing
The radiating effect of piece is substantially similar.The heat loss through convection effect of fin is relevant with the temperature height of fin.
But the LED lamp of COB structures is different, and such as VERO29 is a kind of LED/light source of COB structures, and external diameter is 29mm, thickness
Only 2mm, near-point light source (power is up to 120W) accounts for small part, therefore heat relative to the base plate of radiator with fin
The main cause of the whole radiator effect of influence will be turned into by measuring the diffusion thermal resistance for being distributed to fin by bottom plate.General light fixture meeting
Radiator is increased, strengthens area of dissipation to strengthen convection current, LED/light source is cooled, but light fixture is consumed a large amount of metals, and
And the problem of LED/light source localized hyperthermia can not be solved.
In order to improve the radiating efficiency of high-power LED lamp, and then the luminous efficiency and service life of raising LED lamp,
The utility model proposes a kind of heat spreader structures of new high-power COB light source LED lamp.
Utility model content
The utility model proposes a kind of radiator of high-power COB light source LED lamp, overcome general LED lamp and dissipate
Hot property is not good and expends the shortcoming of a large amount of metal materials, can improve the light efficiency and service life of LED lamp.
For above-mentioned technical problem, the technical solution of the utility model is：A kind of high-power COB light source LED lamp dissipate
Hot device, it includes aluminium wing radiator, low diffusion thermal resistance raised line and high power COB light source, the aluminium wing radiator it is upper
The back side of bottom plate is provided with the radiating fin of arrangement, and the high power is installed in the center of the upper plate of the aluminium wing radiator
COB light source, the low diffusion thermal resistance raised line is arranged between two pieces of radiating fins of arrangement and passes through the high power COB light source
The back side directly over, the external diameter of the low diffusion thermal resistance raised line is wider than the external diameter of the high power COB light source, the high power
The heat of COB light source is diffused into whole fins by the low diffusion thermal resistance raised line.
Further, the radiator has multiple low diffusion thermal resistance raised lines, is separately positioned on the radiating fin arranged two-by-two
Between piece.
It is of the present utility model to have technical effect that：The radiator of high-power COB light source LED lamp of the present utility model overcomes
General LED lamp heat dispersion is not good and expends the shortcoming of a large amount of metal materials, substantially increases the light efficiency of LED lamp and makes
Use the life-span.
Brief description of the drawings
Fig. 1 is the side view of the radiator of the high-power COB light source LED lamp of the utility model；
Fig. 2 is the dimensional structure diagram of the radiator of the high-power COB light source LED lamp of the utility model；
Fig. 3 is that radiating fin and low diffusion thermal resistance in the radiator of the utility model high power CO B light source led light fixtures are convex
The structural representation of bar.
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is further elaborated.It should be appreciated that herein
Described specific embodiment only to explain the utility model, is not used to limit the utility model.
In the structure of the radiator of original high-power COB light source LED lamp, COB light source is located at base plate of radiator
Centre, bottom plate is typically very thin.The size and back side fin area of base plate of radiator be according to LED/light source power decision, but because
For COB light source LED very littles, and power is very big, and heat is concentrated in beside light source, and transmission is distributed to the diffusion thermal resistance of fin just very
Greatly, substantially reduce the radiating efficiency of radiating fin.
As shown in Fig. 2 it illustrates the specific reality of the radiator of the high-power COB light source LED lamp in the utility model
Apply example.The radiator of the high-power COB light source LED lamp includes aluminium wing radiator 5, low diffusion thermal resistance raised line 4 and Gao Gong
Rate COB light source 3, the back side of the upper plate 2 of the aluminium wing radiator 5 is provided with the radiating fin 1 of arrangement, and the aluminium wing dissipates
The high power COB light source 3 is installed in the center of the upper plate 2 of hot device 5, and the low diffusion thermal resistance raised line 4 is arranged at the two of arrangement
Between block radiating fin 1 and through the back side surface of the high power COB light source 3, the external diameter of the low diffusion thermal resistance raised line 4
It is wider than the external diameter of the high power COB light source 3, and height is more obvious than base plate thickness high, diffusion thermal resistance is small, therefore low diffusion thermal resistance
Raised line 4 turns into heat transmission to the passage of whole radiator, and the heat of the high power COB light source 3 passes through the low diffusion heat
Resistance raised line 4 is diffused into whole fins 1, and low to spread thermal resistance raised line 4, metal consumption is relatively low, with same thickness base plate of radiator scheme
Compare, reduce the aluminum metal consumption of radiator.
More preferred scheme is that radiator of the present utility model has multiple low diffusion thermal resistance raised lines, is separately positioned on two
Between the radiating fin 1 of two arrangements.The heat that more rapidly can so produce high power COB light source 3 passes through low diffusion
Thermal resistance raised line is diffused into whole fins 1.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, it is all at this
Any modification within the spirit and principle of utility model.Equivalent substitution and improvement etc., should be included in guarantor of the present utility model
Embodiment within shield in the utility model is only used for illustrating the utility model, does not constitute to right
Limitation, other substantial equivalent replacements that those skilled in that art are contemplated that, in the utility model protection domain.
Claims (2)
1. a kind of radiator of high-power COB light source LED lamp, it is characterised in that including aluminium wing radiator, low diffusion thermal resistance
Raised line and high power COB light source, the back side of the upper plate of the aluminium wing radiator are provided with the radiating fin of arrangement, described
The high power COB light source is installed in the center of the upper plate of aluminium wing radiator, and the low diffusion thermal resistance raised line is arranged at arrangement
Two pieces of radiating fins between and through directly over the back side of the high power COB light source, the low diffusion thermal resistance raised line it is outer
Footpath is wider than the external diameter of the high power COB light source, and the heat of the high power COB light source is expanded by the low diffusion thermal resistance raised line
It is scattered to whole fins.
2. the radiator of high-power COB light source LED lamp according to claim 1, it is characterised in that the radiating utensil
There are multiple low diffusion thermal resistance raised lines, be separately positioned between the radiating fin arranged two-by-two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720056987.8U CN206419903U (en) | 2017-01-18 | 2017-01-18 | A kind of radiator of high-power COB light source LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720056987.8U CN206419903U (en) | 2017-01-18 | 2017-01-18 | A kind of radiator of high-power COB light source LED lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206419903U true CN206419903U (en) | 2017-08-18 |
Family
ID=59571550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720056987.8U Active CN206419903U (en) | 2017-01-18 | 2017-01-18 | A kind of radiator of high-power COB light source LED lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206419903U (en) |
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2017
- 2017-01-18 CN CN201720056987.8U patent/CN206419903U/en active Active
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