CN203024109U - Active fast heat-conduction radiating device - Google Patents
Active fast heat-conduction radiating device Download PDFInfo
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- CN203024109U CN203024109U CN2012206021402U CN201220602140U CN203024109U CN 203024109 U CN203024109 U CN 203024109U CN 2012206021402 U CN2012206021402 U CN 2012206021402U CN 201220602140 U CN201220602140 U CN 201220602140U CN 203024109 U CN203024109 U CN 203024109U
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000010949 copper Substances 0.000 claims abstract description 8
- 229910052802 copper Inorganic materials 0.000 claims abstract description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 30
- 229910052782 aluminium Inorganic materials 0.000 claims description 30
- 239000004411 aluminium Substances 0.000 claims description 29
- 230000005855 radiation Effects 0.000 claims description 20
- 238000005538 encapsulation Methods 0.000 claims description 17
- 238000009413 insulation Methods 0.000 claims description 8
- 239000004593 Epoxy Substances 0.000 claims description 5
- 238000007747 plating Methods 0.000 claims description 5
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- 230000000694 effects Effects 0.000 abstract description 11
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 2
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- 230000017525 heat dissipation Effects 0.000 description 9
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- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
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- 125000005843 halogen group Chemical group 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
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- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The utility model relates to an active fast heat-conduction radiating device, in particular to a fast vertical heat-conduction coated radiating device which is formed by a vertical radiator at the lower end and a support radiating plate at the upper end, wherein the vertical radiator is cylindrical, and the vertical radiator at the lower end and the support radiating plate at the upper end are integrally manufactured. The active fast heat-conduction radiating device solves the technical problems such as complex structure, poor radiating effect, low radiating efficiency and high manufacturing cost, has the beneficial advantages of no space limitation, simple structure, light weight, low manufacturing cost, convenience in processing and installation, environment protection, efficient radiating, small size and lower cost, and realizes the aim of replacing aluminium alloy, copper, ceramic base plate and graphite with coatings with lower cost.
Description
Technical field
The utility model relates to the heat conduction and heat radiation technical field, particularly relates to the heat conduction and heat radiation technical field of lighting device, relates in particular to a kind of active quick conductive heat abstractor.
Background technology
Street lamp on present road surface, more and more LED lamps that adopt, LED lamp energy consumption is low, and brightness is high, be widely used in every field, but the LED street lamp is faced with two great difficult problems: a difficult problem: the LED that 1. dispels the heat is optimum working temperatures at 25 degree, and undamped brightness is high, and the 25-80 degree is decay 5% left and right, the 80-100 degree is 10%, the 100-120 degree is 20%, 120-140 degree 40%, so the heat radiation of LED is extremely important.Because the street lamp stream time is long, must be with cooling system, the cooling system of LED street lamp in order to guarantee the operating temperature of LED, adopts powerful fan at present, waste energy, complex structure, weight is too heavy; Especially integrated package LED lamp can't solve heat dissipation problem with fan at all; 2. a dust difficult problem: present most of LED street lamp simply adds a screen pack at air inlet, poor filtration effect, and need often to change screen pack, maintenance cost is too high.
In addition, great power LED is widely used in car light has become a kind of trend.Has incomparable advantage in the headlamp of car light, the characteristics such as it has long service life, and reflecting time is short, and luminous efficiency is high, and caloric value is low.
We know, LED belongs to the luminous cold light source of semi-conducting material, is subjected to the restriction of present technology, it still will produce certain heat in the course of the work, if this part heat can not distribute timely, can directly cause the decline of semiconductor material luminous efficiency, can burn LED light source when serious; This situation is especially outstanding in great power LED.The serviceability temperature of the great power LED that uses at present is no more than 120 ℃ usually, and its junction temperature is no more than 150 ℃; Only can reach 75% left and right under 25 ℃ of conditions in the luminous efficiency under 120 ℃ of conditions, more energy has been converted to heat energy, rather than luminous energy, further increases the weight of the burden of radiator.Will cause the rising of LED light source junction temperature when radiator can not well distribute heat, until burn LED chip, therefore will consider to increase larger surplus when the design radiator, this has just increased cost and the weight of radiator.
LED has plurality of advantages, and at lighting field, the application of LED lamp is more and more extensive.At present, most of LED illuminating lamp tube is all the structure that adopts welding LED lamp pearl on circuit board, these LED lamp pearls are filled with the luminescence chip envelope get up with epoxy resin, the heat that produces when therefore LED lamp pearl is worked is not easy to come out, working time of a specified duration the situation of light decay and dead lamp easily appears, so adopt LED lamp pearl as the fluorescent tube of light source, most of power is little, can't satisfy the demand of the highlighted light source occasion of some needs.For addressing this problem, existing most of design is to adopt high-power patch-type LED as lighting source, though the brightness of this great power LED is high, caloric value is also very large, therefore also limit the distributed quantity in the radiator unit are, and then limited power and the brightness of LED lamp.
At present, the heat radiation of lighting is commonly used is to adopt heat pipe heat radiation and radiator combination to dispel the heat and by modes such as water-coolings, all heat radiations of passive type, because radiating effect is subjected to the impact of environment temperature larger, LED light source can only be operated in the above work of environment temperature, has a strong impact on the one hand service life and the luminous efficiency of LED, there is fluctuation in the illuminating effect of light fixture simultaneously, along with the passing of lighting time, light will subtract secretly gradually, and affect lighting safety.
The LED lamp of existing alternative common bulb, bulb lamp for example, generally all connect a radiator in order to dispel the heat, outside existing bulb lamp heat radiator generally all is exposed to, and fin generally comprises many radiating fins, affects the overall appearance of light fixture, and when using a plurality of great power LEDs as light source, only depend on the passive heat radiation of radiator often can not dispel the heat fast, the gathering of heat easily cause LED aging, its brightness is decayed rapidly, reduced the service life of product.
The luminescence mechanism of Halogen lamp LED and HID lamp is different from LED light source, and the temperature of its luminous point can reach thousands of degrees centigrade, and the variation of environment temperature is very little on the impact of its luminous efficiency, can ignore fully.Adopt the illuminating effect of the light fixture of these light sources can not be subject to the impact of environment temperature.Therefore substitute conventional light source by LED light source, important one that is applied in the headlamp field can make the luminous efficiency of LED light source stablize exactly,
The LED illuminating lamp is favored by various fields more and more with its plurality of advantages, at lighting field, the LED electricity-saving lamp replaces the position of Halogen lamp LED and fluorescent lamp just gradually.Existing LED energy-saving lamp tube, its structure mainly include LED array in Transparent lamp tube, fluorescent tube and the lamp socket of lamp tube ends, and LED array generally all is arranged on printed circuit board (PCB).The fluorescent tube of this structure, after working long hours, the temperature of printed circuit board (PCB) and LED lamp pearl will maintain a higher range, cause the printed circuit board (PCB) accelerated ageing, reduce the LED lamp pearl life-span, therefore, some fluorescent tube has additional fin at the back side of printed circuit board (PCB), to improve the heat dissipation environment of printed circuit board (PCB).But fin adopts copper material or aluminum alloy materials to make mostly, therefore, sets up fin in fluorescent tube, has not only greatly increased the cost of LED fluorescent tube, has also increased the weight of fluorescent tube, makes troubles to transportation, installation, maintenance.
LED can give out a large amount of heats when work, power is larger, and the heat that distributes is just more, has limited the lifting of its power.The passive radiating mode of the many employings of at present common LED light fixture, namely pass through to connect the radiating piece of the materials such as aluminium, pottery or plastics on the LED substrate, the heat that LED is given out by conduction is delivered on radiating piece external radiation, increase area of dissipation, but the defective of this radiating mode is: the material requirements to radiating piece is high, volume is larger, and radiating effect is not obvious.For example export the LED bulb of 3*1W, adopt passive radiating mode, connect the aluminum radiating piece on the substrate of welding LED lamp pearl, after lighting, its LED lamp bead weld point place temperature is more than 65 ℃, and as do not increase the volume of radiating piece, its power can't strengthen again.Some also having occurred now adopts air-cooled or water-cooling pattern to carry out the LED light fixture of active heat removal.Adopt in the active heat removal structure of air cooling way, be equipped with over against the fan of LED and substrate, force blowing to be carried out cooling, this structural volume is larger, and drive fan itself needs power consumption, and noise is also high.Adopt in the active heat removal structure of water-cooling pattern, water cooling plant need to be set, its complex structure, volume is larger, and the application scenario is limited.
The LED light fixture has the advantages such as environmental protection, durable energy saving, progressively is widely used in recent years the field illuminations such as all kinds of roads, garden, plant area.The LED lamp can produce heat in the course of the work, therefore, the LED light fixture need to adopt heat dissipation equipment, in prior art, the heat dissipation equipment that the LED light fixture adopts is the heat dissipation equipment of passive heat dissipation type, namely passes through large tracts of land die casting aluminium fin or stretching aluminium radiator fin with dissipation of heat.
For example, the disclosed technical scheme of Chinese patent 200810155549.2: the LED light source component placement is in the lamp body cavity and fit tightly lamp body upper cover lower surface, the outside of lamp body upper cover is provided with the some row heat radiation ribs for increasing lamp holder integral heat sink area, and management device is placed in LED light source assembly place; The lamp body shell also surrounds another closed cavity with the electric apparatus chamber cover plate simultaneously, settles the LED Drive and Control Circuit in this closed cavity.
And for example, the disclosed technical scheme of Chinese patent 20092014773.0: radiator is combined by the radiating block joggle, reduced the scale of radiator integral extruding, reduced cost, power storehouse is located on radiator, radiator is also taken away the heat of power generation when distributing the LED heat, solved the heat dissipation balancing problem of power supply and LED lamp, lower the light decay of LED lamp.
The shortcoming of the LED light fixture of prior art is:
(1) for improving radiating efficiency, will increase area of dissipation, the measure that increases area of dissipation is the area that increases fin, enlarges every fin, and therefore, the LED light fixture volume of prior art is large, heavy, and cost is high;
(2) the LED light fixture of prior art improves heat radiation power by increasing area of dissipation purely, and radiating effect is limited, and is difficult to the power of LED light fixture is done greatly, is not suitable for the illumination of road major trunk roads.
As mentioned above, for solving the problem of above-mentioned prior art, be necessary extremely to seek that novel heat exchanger effectiveness is high, the device of the active heat conduction and heat radiation of positive heat conduction and heat radiation.
Summary of the invention
We know, in prior art, heat dissipation problem continues the application of puzzlement high-capacity LED, if heat dissipation problem does not solve, and the heat of LED can't be mediated, and then make the operating temperature of LED increase, and topmost impact has two: (1) luminosity weakens; (2) decay in service life; The utility model purpose overcomes above-mentioned the deficiencies in the prior art exactly, a kind of active quick conductive heat abstractor is provided, with realize that the heat conduction and heat radiation effectiveness of performance is high, greatly extend the LED lamp service life, reduce in lamp temperature effect good, the highlyest energy-conservationly reach 90%, permanently effective heat conduction and heat radiation performance reliability is strong, initiatively lowers the good and lower-cost useful advantage of caloric value effect.
For achieving the above object, the utility model is achieved through the following technical solutions:
A kind of active quick conductive heat abstractor of the present utility model, this active quick conductive heat abstractor comprises high-power LED light source, pcb board, the rectilinear radiator of aluminium matter, driving power, encapsulation mouth and lampshade; It is characterized in that, the rectilinear radiator of described aluminium sheet directly over described great power LED and pcb board or under, the plating of described pcb board upper surface is provided with one deck copper film, described pcb board and the rectilinear radiator back of described aluminium sheet from plated surface be provided with one deck heat insulation nano that dispels the heat and film.
In addition, the utility model also can be by a kind of active quick conductive heat abstractor, and this active quick conductive heat abstractor comprises high-power LED light source, pcb board, the rectilinear radiator of aluminium matter, driving power, encapsulation mouth and lampshade; It is characterized in that, the rectilinear radiator of described aluminium sheet between described great power LED and pcb board, described pcb board and the rectilinear radiator back of described aluminium sheet from the surface all plate and be provided with one deck copper film.
Wherein, described encapsulation mouthful use epoxy encapsulation.
Wherein, the rectilinear radiator of described aluminium matter be positioned at described high-power LED light source directly over or under.
Wherein, after the rectilinear assembling radiator of described aluminium matter, the surface spraying of exposed parts has one deck heat radiation heat insulation nano to film.
With respect to prior art, the utility model has following advantage:
Of the present utility model have strengthen filming of heat conduction and heat radiation and have following excellent results:
1, preparation cost is lower;
2, solve the problem of the low heat conduction and heat radiation rate of passive type existence.
3, extend light fixture service life, radiating effect is quick, and the heat conduction and heat radiation rate is high.
Description of drawings
Fig. 1 is the structural representation of active quick conductive heat abstractor of the present utility model;
Wherein: 1 is high-power LED light source; 2 are the encapsulation mouth; 3 is the rectilinear radiator of aluminium matter; 4 is pcb board; 5 is lampshade.
The specific embodiment
Below in conjunction with the specific embodiment, further set forth the utility model.
Embodiment 1:
As shown in Figure 1, a kind of active quick conductive heat abstractor of the present utility model, this active quick conductive heat abstractor comprises high-power LED light source, pcb board, the rectilinear radiator of aluminium matter, driving power, encapsulation mouth and lampshade; It is characterized in that, the rectilinear radiator of described aluminium sheet directly over described great power LED and pcb board or under, the plating of described pcb board upper surface is provided with one deck copper film, described pcb board and the rectilinear radiator back of described aluminium sheet from plated surface be provided with one deck heat insulation nano that dispels the heat and film; Described encapsulation mouthful use epoxy encapsulation.
Embodiment 2:
As shown in Figure 1, a kind of active quick conductive heat abstractor of the present utility model, this active quick conductive heat abstractor comprises high-power LED light source, pcb board, the rectilinear radiator of aluminium matter, driving power, encapsulation mouth and lampshade; It is characterized in that, the rectilinear radiator of described aluminium sheet directly over described great power LED and pcb board or under, the plating of described pcb board upper surface is provided with one deck copper film, described pcb board and the rectilinear radiator back of described aluminium sheet from plated surface be provided with one deck heat insulation nano that dispels the heat and film; Described encapsulation mouthful use epoxy encapsulation; The rectilinear radiator of described aluminium matter be positioned at described high-power LED light source directly over or under.
Embodiment 3:
As shown in Figure 1, a kind of active quick conductive heat abstractor of the present utility model, this active quick conductive heat abstractor comprises high-power LED light source, pcb board, the rectilinear radiator of aluminium matter, driving power, encapsulation mouth and lampshade; It is characterized in that, the rectilinear radiator of described aluminium sheet directly over described great power LED and pcb board or under, the plating of described pcb board upper surface is provided with one deck copper film, described pcb board and the rectilinear radiator back of described aluminium sheet from plated surface be provided with one deck heat insulation nano that dispels the heat and film; Described encapsulation mouthful use epoxy encapsulation; The rectilinear radiator of described aluminium matter be positioned at described high-power LED light source directly over or under; After the rectilinear assembling radiator of described aluminium matter, the surface spraying of exposed parts has one deck heat radiation heat insulation nano to film.
Film thickness of the present utility model is very thin, and transparent effect is quite good.In addition, light fixture of the present utility model has effectively prevented the negative effect that the LED excess Temperature brings.
The experiment proved that, the utility model is applicable in various model light fixtures simultaneously, and application is wider.
The announcement of book and instruction according to the above description, the utility model those skilled in the art can also carry out suitable profile change and the replacement modification of raw material to above-mentioned embodiment.Therefore, the specific embodiment that discloses and describe above the utility model is not limited to also should fall in the protection domain of claim of the present utility model modifications and changes more of the present utility model.In addition, although used some specific terms in this specification, these terms do not consist of any restriction to the utility model just for convenience of description.
Claims (4)
1. active quick conductive heat abstractor, this active quick conductive heat abstractor comprises high-power LED light source, pcb board, the rectilinear radiator of aluminium matter, driving power, encapsulation mouth and lampshade; It is characterized in that, the rectilinear radiator of described aluminium sheet directly over described great power LED and pcb board or under, the plating of described pcb board upper surface is provided with one deck copper film, described pcb board and the rectilinear radiator back of described aluminium sheet from plated surface be provided with one deck heat insulation nano that dispels the heat and film.
2. active quick conductive heat abstractor according to claim 1, is characterized in that, described encapsulation mouthful use epoxy encapsulation.
3. active quick conductive heat abstractor according to claim 1, is characterized in that, the rectilinear radiator of described aluminium matter be positioned at described high-power LED light source directly over or under.
4. active quick conductive heat abstractor according to claim 1, is characterized in that, after the rectilinear assembling radiator of described aluminium matter, the surface spraying of exposed parts has one deck heat radiation heat insulation nano to film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206021402U CN203024109U (en) | 2012-11-15 | 2012-11-15 | Active fast heat-conduction radiating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206021402U CN203024109U (en) | 2012-11-15 | 2012-11-15 | Active fast heat-conduction radiating device |
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| Publication Number | Publication Date |
|---|---|
| CN203024109U true CN203024109U (en) | 2013-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012206021402U Expired - Fee Related CN203024109U (en) | 2012-11-15 | 2012-11-15 | Active fast heat-conduction radiating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444122A (en) * | 2014-09-28 | 2016-03-30 | 江苏海德莱特汽车部件有限公司 | Reflector assembly for car lamp |
-
2012
- 2012-11-15 CN CN2012206021402U patent/CN203024109U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444122A (en) * | 2014-09-28 | 2016-03-30 | 江苏海德莱特汽车部件有限公司 | Reflector assembly for car lamp |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20131115 |