CN102606925A - Light emitting diode (LED) bulb lamp made of nanometer composite plastic - Google Patents
Light emitting diode (LED) bulb lamp made of nanometer composite plastic Download PDFInfo
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- CN102606925A CN102606925A CN201210064457XA CN201210064457A CN102606925A CN 102606925 A CN102606925 A CN 102606925A CN 201210064457X A CN201210064457X A CN 201210064457XA CN 201210064457 A CN201210064457 A CN 201210064457A CN 102606925 A CN102606925 A CN 102606925A
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Abstract
The invention discloses a light emitting diode (LED) bulb lamp made of nanometer composite plastic, which comprises a lamp body, a lamp house covered on the lamp body, a substrate and an LED chip. The substrate comprises a base layer, and a line connecting layer arranged on the base layer. The base layer is made of nanometer composite plastic comprising a plastic matrix and a nanoscale inorganic filler dispersed in the plastic matrix. A first sealed space is formed between the substrate and the lamp house. The LED chip is arranged in the first sealed space, and electrically connected with the line connecting layer of the substrate. A second space is formed between the substrate and the lamp body. The lamp body has a front end close to the substrate and a back end far away from the substrate. A front end part and a back end part of the lamp body are provided with a first hole and a second hole, respectively. A driving power source is arranged in the second space, and includes a main body and a conical part arranged on the main body and having a radius gradually decreasing from the back end to the front end.
Description
Technical field
the present invention relates to a kind of LED bulb lamp of being processed by nano composite plastics.
Background technology
LED (Light Emitting Diode) is a kind of solid-state semiconductor devices, and it can directly be converted into light to electricity.
LED fluorescent tube of the prior art; It comprises lamp housing, covers on lampshade, substrate, led chip on the lamp housing; Usually for radiating effect; Lamp housing adopts aluminum or aluminum alloy system usually, substrate adopt aluminium and aluminium alloy plate or, copper and copper alloy, pottery, FR-4 etc. process.
still this radiating effect is unsatisfactory, and along with the raising of LED brightness, rated power, the LED bulb lamp needs better thermal diffusivity.
Summary of the invention
the object of the invention is exactly that a kind of LED bulb lamp of being processed by nano composite plastics will be provided, and has good thermal diffusivity.
the invention provides a kind of LED bulb lamp of being processed by nano composite plastics; It comprises lamp housing, covers on lampshade, substrate, led chip on the lamp housing; Said substrate comprises basic unit and is arranged on the circuit articulamentum in the basic unit; The basic unit of substrate is processed by nano composite plastics, and nano composite plastics comprises plastic substrate and is dispersed in the inorganic filler in the plastic substrate with nano-grade size, forms first space of sealing between said substrate and the said lampshade; Said led chip is positioned at first space and is electrically connected mutually with the circuit articulamentum of said substrate; Form second space between said substrate and the lamp housing, have on the said lamp housing near the front end of substrate with away from the rear end of substrate, the leading section of said lamp housing and rearward end offer first hole and second hole respectively; Said driving power is arranged in said second space, and said driving power comprises body and is arranged on the tapered portion that cross section radius on the body reduces to the front end of substrate from the rear end of substrate gradually.
Preferably, said lamp housing is made of plastics
.
Preferably, the diameter of said inorganic filler is 10
-10
~ 10
-6
Rice.
Preferably, the coefficient of heat transfer of said nano composite plastics is greater than 2000W/m
2
K, thermal conductivity factor is between 5-10W/mK.
preferably, the plastic substrate of said nano composite plastics is a kind of in polyamide-based, PET series, epoxy resin, polyimides system, the PPS system.
preferably, the inorganic filler of said nano composite plastics is a kind of in carbon element, oxide based, nitride based, the hydroxide system.
preferably are provided with high heat radiation packing material between the circuit articulamentum of the basic unit of said substrate and said substrate.
preferably, said high heat conduction packing material comprises one or more in high thermal conductive silicon film, silica gel heating sheet, silicon rubber heating film, silicon rubber electric heating piece, silicon rubber oil drum heater, silica gel cloth, conductive graphite sheet, heat conduction casting glue, heat conduction phase-transition material, the silica gel products.
preferably, said first hole is one or more whirlwind holes.
preferably, arrange around the axis direction circumference of substrate in said a plurality of whirlwind hole.
nano composite plastics is to be dispersed in the plastic substrate with nano-grade size by inorganic filler to form.Compare with traditional composite, plastic substrate and inorganic filler are being received in the scope compoundly, and interfacial area is very big between two-phase; There is the chemical bond between the interface; Form excellent cohesion, can eliminate the mutually unmatched problem of organic/inorganic, form diverse characteristic and manifest.
nano level material can produce quantum size effect; 1. small-size effect; 2. skin effect; 3. macro quanta tunnel effect; 4. coulomb stops up and quantum tunneling.
can be big through the surface of nano level material; Easy reunion can reduce the surface can; Eliminate surface charge; Weaken surface polarity, with surface coverage modification, mechanochemical modification, theca externa modification, Topically active modification, high-energy surface modification, utilize the precipitation reaction surface modification.Therefore this nano composite plastics has the hear resistance raising; Thermal diffusivity significantly improves; Air-breathing property and hygroscopicity are lower; Advantages such as the size coefficient of expansion is lower.
The present invention adopts above structure, has the following advantages:
1, simple in structure, realize easily, adaptable across LED bulb lamp and LED fluorescent lamp etc.;
2, good heat dissipation effect are applicable to the high-capacity LED bulb lamp.
Description of drawings
accompanying drawing 1 is the cutaway view of the embodiment of the invention.
accompanying drawing 2 is the front view of the substrate among the present invention.
accompanying drawing 3 is the upward view of lamp housing among the present invention.
In
accompanying drawing: 1, lamp housing; 11, front end; 12, rear end; 13, first hole; 14, second hole; 2, lampshade; 3, substrate; 31, circuit articulamentum; 32, basic unit; 4, led chip; 5, first space; 6, second space; 7, driving power; 71, body; 72, tapered portion.
The specific embodiment
Set forth preferred embodiment of the present invention below in conjunction with accompanying drawing 1-3 in detail
; Thereby protection scope of the present invention is made more explicit defining so that advantage of the present invention and characteristic can be easier to those skilled in the art will recognize that.
A kind of LED bulb lamp of being processed by nano composite plastics is disclosed among
the present invention; It comprises lamp housing 1, covers on lampshade 2, substrate 3, led chip 4 on the lamp housing 1; It is characterized in that: the circuit articulamentum 31 that is electrically connected mutually with led chip 4 on said substrate 4 comprises basic unit 32 and is arranged on basic unit 32; The basic unit 32 of substrate 3 is processed by nano composite plastics; Nano composite plastics comprises plastic substrate and is dispersed in the inorganic filler in the plastic substrate with nano-grade size; Said led chip 4 is positioned at first space 5 and is electrically connected mutually with the circuit articulamentum 31 of said substrate 3, forms first space 5 of sealing between said substrate 3 and the said lampshade 2, forms second space 6 between said substrate 3 and the lamp housing 1; Have on the lamp housing 1 near the front end 11 of substrate 3 with away from the rear end 11 of substrate 3; The leading section of said lamp housing 1 and rearward end offer first hole 13 and second hole 14 respectively, and said driving power 7 is arranged in said second space 6, and said driving power 7 comprises body 71 and is arranged on the tapered portion 72 that cross section radius on the body 71 reduces to the front end of substrate from the rear end of substrate gradually.
Shown in accompanying drawing 3, preferably, first hole 13 can be a plurality of whirlwind holes of arranging around the axis direction circumference of substrate 3
.
generally bulb lamp are in suspended state, and when substrate 3 and driving power 7 work, led chip 4 passes through the thermal current of substrate 3 outside heat radiation generations to rising.Be positioned at the cold air rising that 13 spirals get into second space, 6 acceleration thermal currents from first hole of lamp housing 1 outside.
thermal current and cold air rise along the capable portion of awl of driving power 7 jointly and leave second space 6 from second hole 14 of lamp housing 1 rear end 12.The setting of tapered portion 72 helps the trend of air-flow more, has prevented the generation of eddy current, has quickened cross-ventilation, has speeded the speed of heat diffusion.
shown in accompanying drawing 2, basic unit 32 be arranged on the circuit articulamentum 31 in the basic unit 32.
The circuit articulamentum 31 of
substrate 3 is used to connect led chip 4 and is connected with circuit between the driving power 7.
The basic unit 32 of
substrate 3 is processed by nano composite plastics, and nano composite plastics comprises plastic substrate and is dispersed in the inorganic filler in the plastic substrate with nano-grade size.The coefficient of heat transfer of nano composite plastics is greater than 2000W/m 2 K, thermal conductivity factor is between 5-10W/mK.
The plastic substrate of
nano composite plastics can be in polyamide-based (PA), PET series (PET), epoxy resin (Epoxy Resin), polyimides system (PI), the PPS system a kind of.
polyamide is a kind of engineering plastics commonly used; Wherein nylon 6 (PA6) has excellent physics and chemical property; It is low to make water absorption rate height, poor dimensional stability, wet strength and the thermal deformation of material stablize, and has limited the use of polyamide to a certain extent.
This nanometer PET material of
PETG combines rigidity, the hear resistance of inorganic material with toughness, the processability of PET.
epoxy resin is as the main material of making copper-clad plate; Have excellent comprehensive performances, through the epoxy resin of nanometer technology modification, its structure is different from the epoxy composite material of common fillers fully; Show extremely strong activity; Huge specific surface is easy to and epoxy resin molecule generation key and effect it, improved intermolecular distributary power and still some nano particle be distributed in the space of macromolecular chain, show very high flowability.
Polyimides (PI) is a kind of high heat-resisting organic material of practical application at present, along with nanometer SiO
2
The increase of content, polyimides can significantly promote its heat resistance along with the increase of nano-filled thing content.
are same, along with the increase of nano-filled thing content, can significantly promote its heat resistance among the PPS.
The inorganic filler of
nano composite plastics is a kind of in carbon element, oxide based, nitride based, the hydroxide system.The diameter of inorganic filler is 10 -10 ~ 10 -6 Rice.
also are provided with high heat radiation packing material in addition between the circuit articulamentum 31 of substrate 2 and basic unit 32, be used for being beneficial to heat transfer more with being close to mutually between circuit articulamentum 31 and the basic unit 32.
high heat conduction packing material is one or more in high thermal conductive silicon film, silica gel heating sheet, silicon rubber heating film, silicon rubber electric heating piece, silicon rubber oil drum heater, silica gel cloth, conductive graphite sheet, heat conduction casting glue, heat conduction phase-transition material, the silica gel products.
are because this substrate 3 has good thermal diffusivity, so the heat energy that led chip 4 produces can be through substrate 3 to external diffusion.The heat that substrate 3 is received can exhale from lamp housing 1.
The present invention adopts above structure, has the following advantages:
1, simple in structure, realize easily, adaptable across LED bulb lamp and LED fluorescent lamp etc.;
2, good heat dissipation effect are applicable to the high-capacity LED bulb lamp.
are above to combine diagram to be illustrated to specific embodiment of the present invention; But protection content of the present invention is not only limited to above embodiment; In affiliated technical field of the present invention; The common knowledge of GPRS just can be carried out diversified change in its technological main idea scope.
Claims (9)
1. LED bulb lamp of processing by nano composite plastics; It comprises lamp housing, covers on lampshade, substrate, led chip on the lamp housing; It is characterized in that: said substrate comprises basic unit and is arranged on circuit articulamentum in the basic unit; The basic unit of substrate is processed by nano composite plastics, and nano composite plastics comprises plastic substrate and is dispersed in the inorganic filler in the plastic substrate with nano-grade size, forms first space of sealing between said substrate and the said lampshade; Said led chip is positioned at first space and is electrically connected mutually with the circuit articulamentum of said substrate; Form second space between said substrate and the lamp housing, have on the said lamp housing near the front end of substrate with away from the rear end of substrate, the leading section of said lamp housing and rearward end offer first hole and second hole respectively; Said driving power is arranged in said second space, and said driving power comprises body and is arranged on first tapered portion of reducing gradually to the front end of substrate of rear end of substrate without leave of body.
2. the LED bulb lamp of being processed by nano composite plastics according to claim 1, it is characterized in that: said lamp housing is made of plastics.
3. the LED bulb lamp of being processed by nano composite plastics according to claim 1 is characterized in that: the diameter of said inorganic filler is 10
-10~ 10
-6Rice.
4. the LED bulb lamp of being processed by nano composite plastics according to claim 1, it is characterized in that: the coefficient of heat transfer of said nano composite plastics is greater than 2000W/m
2K, thermal conductivity factor is between 5-10W/mK.
5. the LED bulb lamp of being processed by nano composite plastics according to claim 1 is characterized in that: the plastic substrate of said nano composite plastics is a kind of in polyamide-based, PET series, epoxy resin, polyimides system, the PPS system.
6. the LED bulb lamp of being processed by nano composite plastics according to claim 1 is characterized in that: the inorganic filler of said nano composite plastics is a kind of in carbon element, oxide based, nitride based, the hydroxide system.
7. the LED bulb lamp of being processed by nano composite plastics according to claim 1 is characterized in that: be provided with high heat radiation packing material between the circuit articulamentum of the basic unit of said substrate and said substrate.
8. the LED bulb lamp of being processed by nano composite plastics according to claim 1 is characterized in that: said first hole is one or more whirlwind holes.
9. the LED bulb lamp of being processed by nano composite plastics according to claim 8 is characterized in that: arrange around the axis direction circumference of substrate in said a plurality of whirlwind hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210064457XA CN102606925A (en) | 2012-03-13 | 2012-03-13 | Light emitting diode (LED) bulb lamp made of nanometer composite plastic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210064457XA CN102606925A (en) | 2012-03-13 | 2012-03-13 | Light emitting diode (LED) bulb lamp made of nanometer composite plastic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102606925A true CN102606925A (en) | 2012-07-25 |
Family
ID=46524557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210064457XA Pending CN102606925A (en) | 2012-03-13 | 2012-03-13 | Light emitting diode (LED) bulb lamp made of nanometer composite plastic |
Country Status (1)
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|---|---|
| CN (1) | CN102606925A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216749A (en) * | 2012-11-26 | 2013-07-24 | 苏州东亚欣业节能照明有限公司 | LED (Light Emitting Diode) bulb |
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| CN202511051U (en) * | 2012-03-13 | 2012-10-31 | 苏州东亚欣业节能照明有限公司 | LED (light emitting diode) bulb lamp made from nanometer composite plastic |
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Application publication date: 20120725 |