CN202733853U - LED luminaire radiating device - Google Patents
LED luminaire radiating device Download PDFInfo
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- CN202733853U CN202733853U CN2012204394297U CN201220439429U CN202733853U CN 202733853 U CN202733853 U CN 202733853U CN 2012204394297 U CN2012204394297 U CN 2012204394297U CN 201220439429 U CN201220439429 U CN 201220439429U CN 202733853 U CN202733853 U CN 202733853U
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- air
- radiator
- air channel
- radiating
- radiating device
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Abstract
The utility model provides an LED luminaire radiating device which is disposed on the back of an aluminum-base circuit board. The front side of the aluminum-base circuit board is used for installing LED lights. The LED luminaire radiator comprises a radiator and an air channel formed by fastening an air baffle on the radiator. The air channel comprises at least two air inlets and at least three air outlets. A fan is fixed to each air inlet of the air channel. Owing to the air outlets, the radiating area of the LED luminaire radiating device is increased. The air outlets release heat simultaneously, so that the areas of the whole air channel have small temperature difference, even temperature and high radiating efficiency. Tests show that the LED luminaire radiator with the same radiating area has radiating efficiency increased by about 2.5 times and air flow more than doubled due to the air channel having two air inlets and three air outlets. The LED luminaire radiating device is especially suitable for radiating of high-power LED luminaires.
Description
Technical field
The utility model relates to a kind of heat abstractor, relates in particular to a kind of LED lamp heat-radiating device, belongs to technical field of semiconductor illumination.
Background technology
Because led light source has the advantages such as efficient low-consume, energy-conserving and environment-protective, long service life, use increasingly extensive in lighting technical field.The light efficiency of led light source is 4～5 times of halogen tungsten lamp up to more than the 100lm/w; The infra-red radiation of led light source is extremely low, has fewer environmental impacts; The long service life of led light source is more than 200 times of halogen tungsten lamp.
Led light source the time can produce amount of heat in work, wherein 20% change into luminous energy, 80% changes into thermal energy radiation goes out.If the heat radiation of LED light fixture is bad, can make the excess Temperature of led light source, accelerate the aging of led light source.Rapid light decay can appear in led light source, thereby reduces the service life of LED light fixture.
In the prior art, the radiating mode of LED light fixture mostly is direct heat radiation, is about to the back side that bulk loading device is fixed on aluminum base circuit board, and the radiating fin by heat abstractor directly is diffused into heat in the air and goes.This kind radiating mode, on the one hand, heat abstractor needs enough area of dissipations to be used for heat radiation, and when the LED lamp power was larger, area of dissipation was also just larger, the corresponding increase of the volume of light fixture; On the other hand, the heat conduction efficiency that heat abstractor directly dispels the heat is lower, and the heat that can't the Quick diffusing led light source produces makes the LED light fixture overheated and reduce service life easily.
And for high-power LED lamp, often adopt air cooling way, and namely accelerate the heat radiation of led light source by in heat abstractor, setting up fan and air channel, wherein, the air channel is used for strengthening cross-ventilated intensity, and fan is for increasing cross-ventilated speed.Be to comprise radiating part in the disclosed reflective ground bank light in the Chinese utility model of ZL201020696219.7 such as the patent No., this radiating part comprises L-type air duct, blower fan and radiator, its concrete structure is: aluminum base circuit board is fastened on maintenance LED good heat radiating on the radiator, and radiator is installed in the L-type air duct; The L-type air duct is installed in the carriage below, and L-type air duct tail end is installed blower fan and is connected with the power pack cover, and blower fan is dried in air duct; Air duct and power supply are installed on lamp body main body lower shoe; Power supply is installed in and guarantees the power supply ventilation and heat on the power shelf, and the lamp body surface temperature is reduced.This LED lamp heat-radiating device can conduct the heat that led light source produces owing to adopted air duct, radiator and blower fan, and led light source can not produce burning heat sensation.But in this type of air-cooled radiating device, the air inlet in air channel only has one, and air outlet also only has one, and blower fan generally is installed on the air inlet position of air channel end, makes in the heat radiation process each regional temperature distributing disproportionation in the air channel.Can increase gradually in the local wind-warm syndrome of air channel end away from fan, heat abstractor is large to the air outlet temperature difference from air inlet, can affect LED service life, and therefore, such heat abstractor that uses in the LED light fixture also needs further to improve.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of follow-on LED lamp heat-radiating device.
For realizing above-mentioned purpose, the utility model adopts following technical scheme:
A kind of LED lamp heat-radiating device comprises radiator and is fastened on the air channel that forms on the described radiator by deep bead, it is characterized in that:
Described air channel comprises at least two air inlets and at least three air outlets, fixes a fan in each air inlet position in described air channel.
More preferably, two air outlets lay respectively at the two ends in described air channel, and remaining air outlet is opened in described deep bead on the surface of described radiator.
More preferably, described air channel comprises two air inlets and three air outlets, two air outlets lay respectively at the two ends in described air channel, and the 3rd air outlet is opened in described deep bead on the surface of described radiator, offer respectively an air inlet in the both sides of described the 3rd air outlet.
Perhaps more preferably, described air channel comprises at least two air inlets and at least three air outlets, offers respectively an air outlet at two ends, described air channel, described air inlet and remaining air outlet alternately at described deep bead on the surface of described radiator.
More preferably, the radiating fin of described radiator stretches in the described air channel.
More preferably, described radiating fin be shaped as comb teeth shape, the root of described radiating fin is fixed on the aluminum base circuit board, the broach of described radiating fin stretches in the described air channel.
More preferably, described deep bead is ㄇ type cuboid, have one with described radiator over against main body and two along the following sides that extend to described radiator direction on the described main body, two sides of described deep bead are fixedly connected with described radiator.
The utility model provides a kind of LED lamp heat-radiating device, comprise the radiator that is fixed in the aluminum base circuit board back side and be fastened on the air channel that forms on the radiator by deep bead, this air channel comprises at least two air inlets and at least three air outlets, fixes a fan in each air inlet position in air channel.This LED lamp heat-radiating device has increased area of dissipation by offering a plurality of air outlets, and a plurality of air outlets are discharged heat simultaneously, causes in the whole air channel each space temperature variation less, and radiating efficiency is high.In conjunction with the radiating fin of radiator comb teeth shape, can make that the each several part thermograde reduces on the whole radiator, the LED working stability, efficient is high, long service life.Experiment showed, this LED lamp heat-radiating device with equal area of dissipation, adopt the air channel that comprises two air inlets and three air outlets, radiating efficiency can be improved 2.5 times, air mass flow improves more than 2 times, is particularly suitable for the heat radiation of high-power LED lamp.
Description of drawings
Fig. 1 is the structural representation of the first embodiment of LED lamp heat-radiating device provided by the utility model;
Fig. 2 is the rearview of LED lamp heat-radiating device shown in Figure 1;
Fig. 3 is the side view of LED lamp heat-radiating device shown in Figure 1;
Fig. 4 is the A section enlarged drawing of LED lamp heat-radiating device shown in Figure 3;
Fig. 5 is among the first embodiment of LED lamp heat-radiating device, cross-ventilated view;
Fig. 6 is the cross-ventilation schematic diagram when adopting two air inlets and two air outlets in the LED lamp heat-radiating device.
The specific embodiment
Below in conjunction with the drawings and specific embodiments technology contents of the present utility model is elaborated.
The utility model provides a kind of LED lamp heat-radiating device, is installed on the back side of aluminum base circuit board 9, and the front of aluminum base circuit board 9 is used for installing led light source 7.This LED lamp heat-radiating device comprises the radiator 6 that is fixed in aluminum base circuit board 9 back sides and is fastened on the air channel that consists of on the radiator 6 by deep bead 1, the air channel comprises at least two air inlets and at least three air outlets, fixes a fan in each air inlet position in air channel.Wherein, two air outlets lay respectively at the two ends in air channel, and remaining air outlet is opened in deep bead 1 on the surface of radiator 6.
The first embodiment:
In this LED lamp heat-radiating device, the air channel comprises two air inlets and three air outlets.With orientation shown in Figure 1, the first air outlet 4a is positioned at the left side in air channel, the second air outlet 4b is positioned at the right side in air channel, offers the 3rd air outlet 4c over against the middle part of the face of radiator 6 at deep bead 1, and the 3rd air outlet 4c fixes by air outlet clench nail 5 and air channel.Offer respectively an air inlet in the both sides of the 3rd air outlet 4c, fan 3 and fan 11 are fixed on two air inlet positions by fan clench nail 2 respectively.
In the LED lamp heat-radiating device, deep bead 1 is a ㄇ type cuboid of being made by steel plate, comprise one with radiator 6 over against main body and two along the following sides that extend to radiator 6 directions on the main body.Two sides of deep bead 1 are fixedly connected with by radiator hold-down screw 8 with radiator 6.Deep bead 1 is fastened on the radiator 6, thereby consists of the air channel between deep bead 1 and radiator 6, and the radiating fin of radiator 6 stretches in the air channel.In conjunction with Fig. 2, with aluminum base circuit board 9 by the back-to-back back side of being fixed in radiator 6 of aluminum base circuit board hold-down screw 10 (being the root n end of radiating fin shown in Figure 3), at the front of aluminum base circuit board 9 welding led light source 7, guaranteed the good contact of led light source 7 with aluminum base circuit board 9.
Shown in A section enlarged drawing among Fig. 3 and Fig. 4, in this LED lamp heat-radiating device, radiator 6 has the radiating fin of comb teeth shape, the root n end of radiating fin is fixed on the aluminum base circuit board 9, the broach m of radiating fin end stretches in the air channel, with the main body of deep bead 1 (that is, deep bead 1 and radiator 6 over against face) over against, can guarantee that the heat that led light source 7 produces is delivered in the air channel rapidly along radiating fin, and discharge from three air outlets.This LED lamp heat-radiating device by setting up air outlet, makes that temperature is even in the air channel everywhere, avoids local temperature overheated; And in conjunction with the radiating fin of comb teeth shape, this LED lamp heat-radiating device can in time pass the heat that led light source 7 produces, and the broach m end of radiating fin and the temperature difference of root n end are controlled within 2 ℃ of scopes.
In conjunction with cross-ventilation schematic diagram shown in Figure 5 as can be known, Cryogenic air f enters from two air inlets under the effect of fan 3 and fan 11, high temperature air f1, f2 and f3 discharge from air outlet 4a, 4b and 4c respectively, take away led light source 7 and conduct to heat in the air channel via radiator 6.The 3rd air outlet 4c that offers between fan 3 and fan 11 can send into fan 3 and fan 11 high temperature air at middle part, air channel and immediately discharge, and avoids forming turbulent flow at the middle part, air channel, causes heat in time not discharge, and causes local temperature to raise.Otherwise, as shown in Figure 6, when only adopting two air inlets and two air outlets in the LED lamp heat-radiating device, do not set out air port 4c in the middle of the air channel, Cryogenic air f enters the air channel from fan 3 and fan 11, and the hot-air f1 in the air channel and f2 get rid of from the air outlet at two ends, air channel, and the hot-air that distributes in the middle of the radiator 6 forms turbulent flow at the middle part, air channel, the middle part heat can not in time be got rid of, cause local temperature to raise, can make led light source 7 reduce service life because of overheated.The radiating efficiency that experiment showed, this LED lamp heat-radiating device is high, when having equal area of dissipation, radiating efficiency can be improved 2.5 times, and air mass flow improves more than 2 times, makes the radiating efficiency of radiator improve 30%, is particularly suitable for the heat radiation of high-power LED lamp.
The second embodiment:
In this LED lamp heat-radiating device, comprise n air inlet and n+1 air outlet (n 〉=2) in the air channel, at the position of each air inlet provided with fan, offer respectively first, second air outlet at the two ends, air channel, and between n the air inlet in middle part, air channel, offer the 3rd air outlet to the (n+1) air outlet, wherein, air inlet and air outlet deep bead 1 on the surface of radiator 6 alternately, all the other structures and the first embodiment in this LED lamp heat-radiating device are similar.
Cross-ventilation schematic diagram and Fig. 5 of this embodiment are similar, and Cryogenic air f enters the air channel from air inlet respectively under the effect of a plurality of fans, and high temperature air is discharged from air outlet respectively, take away via radiator 6 and conduct to heat in the air channel.At a plurality of air outlets that the middle part, air channel is offered, fan can be sent into the high temperature air at middle part, air channel and immediately discharge, avoid forming turbulent flow at the middle part, air channel.Along with the increase of output power of led light source, the air outlet in the corresponding increase LED lamp heat-radiating device and the quantity of fan strengthen the area of air outlet and air quantity, and radiating effect can be better.This LED lamp heat-radiating device is suitable for the narrow long type air channel, and limited, the lower-powered situation of fan volume.
In sum, the LED lamp heat-radiating device that the utility model provides, comprise the radiator, deep bead and the fan that are fixed in the aluminum base circuit board back side, deep bead is fastened on the radiator top and consists of the air channel, the air channel comprises at least two air inlets and at least three air outlets, at each air inlet position fan attachment.By a plurality of air outlets and a plurality of air inlet are set in the air channel, can make that each regional temperature difference reduces in the air channel, thereby avoid inside, air channel hot-spot to occur.By changing the distributing position of fan on the air channel, can also regulate the temperature gradient distribution in the air channel.This LED lamp heat-radiating device is simple in structure, radiating efficiency is high, is suitable for the heat radiation of high-power LED lamp.
In above-described embodiment, two air inlets and three air outlets have been provided respectively, and the situation of n air inlet and n+1 air outlet, in actual the use, arrangement mode according to LED power and a plurality of LED, the quantity of air inlet and air outlet be can change, the power of fan or the area of increase air outlet also can be increased, so that better heat-radiation effect.
The above has been described in detail LED lamp heat-radiating device provided by the utility model.For one of ordinary skill in the art, any apparent change of under the prerequisite that does not deviate from the utility model connotation it being done all will consist of the utility model infringement of patent right, will bear corresponding legal liabilities.
Claims (7)
1. a LED lamp heat-radiating device comprises radiator and is fastened on the air channel that forms on the described radiator by deep bead, it is characterized in that:
Described air channel comprises at least two air inlets and at least three air outlets, fixes a fan in each air inlet position in described air channel.
2. LED lamp heat-radiating device as claimed in claim 1 is characterized in that:
Two air outlets lay respectively at the two ends in described air channel, and all the other air outlets are opened in described deep bead on the surface of described radiator.
3. LED lamp heat-radiating device as claimed in claim 1 is characterized in that:
Described air channel comprises two air inlets and three air outlets, and two air outlets lay respectively at the two ends in described air channel, and the 3rd air outlet is opened in described deep bead on the surface of described radiator, offers respectively an air inlet in the both sides of described the 3rd air outlet.
4. LED lamp heat-radiating device as claimed in claim 1 is characterized in that:
Described air channel comprises at least two air inlets and at least three air outlets, offers respectively an air outlet at two ends, described air channel, described air inlet and remaining air outlet alternately at described deep bead on the surface of described radiator.
5. such as the described LED lamp heat-radiating device of any one in the claim 1 to 4, it is characterized in that:
The radiating fin of described radiator stretches in the described air channel.
6. LED lamp heat-radiating device as claimed in claim 5 is characterized in that:
Described radiating fin is comb teeth shape, and root is fixed on the aluminum base circuit board, and broach stretches in the described air channel.
7. such as the described LED lamp heat-radiating device of any one in the claim 1 to 4, it is characterized in that:
Described deep bead is ㄇ type cuboid, have one with described radiator over against main body and two along the following sides that extend to described radiator direction on the described main body, two sides of described deep bead are fixedly connected with described radiator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204394297U CN202733853U (en) | 2012-08-30 | 2012-08-30 | LED luminaire radiating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204394297U CN202733853U (en) | 2012-08-30 | 2012-08-30 | LED luminaire radiating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202733853U true CN202733853U (en) | 2013-02-13 |
Family
ID=47659548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204394297U Expired - Lifetime CN202733853U (en) | 2012-08-30 | 2012-08-30 | LED luminaire radiating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202733853U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440205A (en) * | 2019-07-15 | 2019-11-12 | 深圳市海洋王照明工程有限公司 | Lamps and lanterns |
| CN111669941A (en) * | 2020-06-08 | 2020-09-15 | 西安黄河机电有限公司 | Double-layer air duct heat dissipation device |
| CN114963057A (en) * | 2022-04-29 | 2022-08-30 | 佛山电器照明股份有限公司 | Fish gathering lamp and design method thereof |
-
2012
- 2012-08-30 CN CN2012204394297U patent/CN202733853U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440205A (en) * | 2019-07-15 | 2019-11-12 | 深圳市海洋王照明工程有限公司 | Lamps and lanterns |
| CN111669941A (en) * | 2020-06-08 | 2020-09-15 | 西安黄河机电有限公司 | Double-layer air duct heat dissipation device |
| CN111669941B (en) * | 2020-06-08 | 2022-06-14 | 西安黄河机电有限公司 | Double-layer air duct heat dissipation device |
| CN114963057A (en) * | 2022-04-29 | 2022-08-30 | 佛山电器照明股份有限公司 | Fish gathering lamp and design method thereof |
| CN114963057B (en) * | 2022-04-29 | 2023-10-20 | 佛山电器照明股份有限公司 | Fishing lamp and design method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130213 |