CN104861939B - A kind of heat sink material and the soft bar lamp FPCs of LED based on the material - Google Patents
A kind of heat sink material and the soft bar lamp FPCs of LED based on the material Download PDFInfo
- Publication number
- CN104861939B CN104861939B CN201510321362.5A CN201510321362A CN104861939B CN 104861939 B CN104861939 B CN 104861939B CN 201510321362 A CN201510321362 A CN 201510321362A CN 104861939 B CN104861939 B CN 104861939B
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- Prior art keywords
- soft bar
- led
- fpcs
- heat sink
- bar lamp
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/14—Solid materials, e.g. powdery or granular
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
- H05K1/0313—Organic insulating material
- H05K1/0353—Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement
Abstract
The invention discloses a kind of heat sink material, include according to mass percent：Beryllium oxide nanometer powder 4.5% 6.3%, barium titanate nano powder 3.2% 3.8%, surplus is polyimide particles；A kind of preparation method of the soft bar lamp FPCs of LED based on the heat sink material, step are as follows：(1), dispensing, by beryllium oxide nanometer powder, barium titanate nano powder and polyimide particles proportionally dispensing；(2), mix；(3), melt, by well mixed raw material input firing equipment, it is in molten state completely to be heated to polyimide particles；(4), extrusion moulding, by after heating and polyimide particles pass through extruding machine extrusion moulding in the raw material of molten state；A kind of soft bar lamps of LED, including the soft bar lamp FPCs of above-mentioned LED；The radiating effect of heat sink material of the present invention is better than polyimides, and the soft bar lamp FPCs of the LED based on the heat sink material are than traditional polyimide flexible circuit plate good heat dissipation effect, so as to extend the service life of the soft bar lamps of LED.
Description
Technical field
The present invention relates to LED technical field of heat dissipation, specifically a kind of heat sink material and the soft bar lamps of LED based on the material
FPC.
Background technology
The soft bar lamps of LED refer to LED to be assembled on the FPC (FPC) or PCB hardboards of banding, because of its shape of product
Gained the name as a strap.Because service life is long, green and gradually show up prominently in various decoration industries.
Flexible PCB is that have height reliability to be a kind of made of base material using polyimides or polyester film, excellent
Flexible printed circuit.With the characteristics of Distribution density is high, in light weight, thickness of thin, good bending property.Wherein polyimides is most
Conventional flexible circuitry plate material.Because the lamp bead of the soft bar lamps of LED can produce heat in use, and the soft bars of LED at present
Lamp FPC is generally made using polyimides.Because polyimides heat transfer coefficient is low, cause heat conduction slower,
Heat dispersion is bad, and this is a great problem for influenceing the soft bar lamp service lifes of LED.
The content of the invention
It is an object of the invention to provide a kind of heat sink material and the soft bar lamp FPCs of the LED based on the material, with
Solve the problems, such as to propose in above-mentioned background technology.
To achieve the above object, the present invention provides following technical scheme：
A kind of heat sink material, includes according to mass percent：Beryllium oxide nanometer powder 4.5%-6.3%, barium titanate nano
Powder 3.2%-3.8%, surplus are polyimide particles.
As the further scheme of the present invention：The heat sink material, includes according to mass percent：Beryllium oxide nanometer powder
5.5%th, barium titanate nano powder 3.5%, surplus are polyimide particles.
A kind of preparation method of the soft bar lamp FPCs of LED based on the heat sink material, step are as follows：(1), dispensing,
By beryllium oxide nanometer powder, barium titanate nano powder and polyimide particles proportionally dispensing；(2), mix, the original that will be prepared
Material is well mixed by powder mixer；(3), melt, by well mixed raw material input firing equipment, be heated to polyamides Asia
Amine particle is in molten state completely；(4), extrusion moulding, by after heating and polyimide particles pass through extrusion molding in the raw material of molten state
Machine extrusion moulding, the soft bar lamp FPCs of LED are made.
As the further scheme of the present invention：In 3rd step, after raw material is put into firing equipment, firing equipment heating
To 460 DEG C, and keep, until polyimide particles are in molten state completely.
A kind of soft bar lamps of LED, including the soft bar lamp FPCs of above-mentioned LED.
Compared with prior art, the beneficial effects of the invention are as follows：The radiating effect of heat sink material of the present invention compares polyimides
It is good, and surface radiating ability is better than polyimides, the soft bar lamp FPCs of the LED based on the heat sink material are than traditional polyamides
Imines FPC good heat dissipation effect, so as to extend the service life of the soft bar lamps of LED.
Embodiment
The technical scheme of this patent is described in more detail with reference to embodiment.
Embodiment 1
A kind of heat sink material, includes according to mass percent：Beryllium oxide nanometer powder 4.5%, barium titanate nano powder
3.2%, surplus is polyimide particles.
A kind of preparation method of the soft bar lamp FPCs of LED based on the heat sink material, step are as follows：(1), dispensing,
To beryllium oxide nanometer powder, barium titanate nano powder and polyimide particles proportionally dispensing, wherein beryllium oxide nanometer powder
4.5%th, barium titanate nano powder 3.2%, surplus are polyimide particles；(2), mix, the raw material prepared is mixed by powder
Conjunction machine is well mixed；(3), melt, by well mixed raw material input firing equipment, be heated to polyimide particles is in completely
Molten state；(4), extrusion moulding, by after heating and polyimide particles in molten state raw material pass through extruding machine extrusion moulding, system
Into the soft bar lamp FPCs of LED.
Embodiment 2
A kind of heat sink material, includes according to mass percent：Beryllium oxide nanometer powder 5.5%, barium titanate nano powder
3.5%, surplus is polyimide particles.
A kind of preparation method of the soft bar lamp FPCs of LED based on the heat sink material, step are as follows：(1), dispensing,
To beryllium oxide nanometer powder, barium titanate nano powder and polyimide particles proportionally dispensing, wherein beryllium oxide nanometer powder
5.5%th, barium titanate nano powder 3.5%, surplus are polyimide particles；(2), mix, the raw material prepared is mixed by powder
Conjunction machine is well mixed；(3), melt, by well mixed raw material input firing equipment, be heated to polyimide particles is in completely
Molten state；(4), extrusion moulding, by after heating and polyimide particles in molten state raw material pass through extruding machine extrusion moulding, system
Into the soft bar lamp FPCs of LED.
Embodiment 3
A kind of heat sink material, includes according to mass percent：Beryllium oxide nanometer powder 6.3%, barium titanate nano powder
3.8%, surplus is polyimide particles.
A kind of preparation method of the soft bar lamp FPCs of LED based on the heat sink material, step are as follows：(1), dispensing,
To beryllium oxide nanometer powder, barium titanate nano powder and polyimide particles proportionally dispensing, wherein beryllium oxide nanometer powder
6.3%th, barium titanate nano powder 3.8%, surplus are polyimide particles；(2), mix, the raw material prepared is mixed by powder
Conjunction machine is well mixed；(3), melt, by well mixed raw material input firing equipment, be heated to polyimide particles is in completely
Molten state；(4), extrusion moulding, by after heating and polyimide particles in molten state raw material pass through extruding machine extrusion moulding, system
Into the soft bar lamp FPCs of LED.
Embodiment 4
A kind of heat sink material, includes according to mass percent：Beryllium oxide nanometer powder 4.5%, barium titanate nano powder
3.8%, surplus is polyimide particles.
A kind of preparation method of the soft bar lamp FPCs of LED based on the heat sink material, step are as follows：(1), dispensing,
To beryllium oxide nanometer powder, barium titanate nano powder and polyimide particles proportionally dispensing, wherein beryllium oxide nanometer powder
4.5%th, barium titanate nano powder 3.8%, surplus are polyimide particles；(2), mix, the raw material prepared is mixed by powder
Conjunction machine is well mixed；(3), melt, by well mixed raw material input firing equipment, be heated to polyimide particles is in completely
Molten state；(4), extrusion moulding, by after heating and polyimide particles in molten state raw material pass through extruding machine extrusion moulding, system
Into the soft bar lamp FPCs of LED.
Embodiment 5
A kind of heat sink material, includes according to mass percent：Beryllium oxide nanometer powder 6.3%, barium titanate nano powder
3.2%, surplus is polyimide particles.
A kind of preparation method of the soft bar lamp FPCs of LED based on the heat sink material, step are as follows：(1), dispensing,
To beryllium oxide nanometer powder, barium titanate nano powder and polyimide particles proportionally dispensing, wherein beryllium oxide nanometer powder
6.3%th, barium titanate nano powder 3.2%, surplus are polyimide particles；(2), mix, the raw material prepared is mixed by powder
Conjunction machine is well mixed；(3), melt, by well mixed raw material input firing equipment, be heated to polyimide particles is in completely
Molten state；(4), extrusion moulding, by after heating and polyimide particles in molten state raw material pass through extruding machine extrusion moulding, system
Into the soft bar lamp FPCs of LED.
Under Natural Convection Conditions, when the distance that heat conducts in radiator is relatively short, radiating of the invention effect
Fruit is better than polyimides, there is following experiment --- and vacuum flask hot water temperature drawdown test is tested as evidence.
First, laboratory apparatus：Vacuum flask bore Φ 75, the size of the cover plate Φ 85 × 1.8, hot water amount weight 300g, thermometer range
0-100℃。
2nd, experimental procedure：Cover plate is made in polyimides and heat sink material of the present invention, is respectively placed on vacuum flask, is incubated
Hot water is placed with bottle, the experiment of vacuum flask hot water temperature drawdown test is done using thermometer.Wherein choose the radiating material in embodiment 2
Cover plate is made in material, carries out the experiment.
3rd, experimental data：
Temperature, which declines, need to use the time, see the table below 1
The vacuum flask hot water temperature's drawdown test experimental data of table 1
As it can be seen from table 1 within the temperature range of 95-60 DEG C, drop at each temperature in section, heat sink material system of the present invention
Into cover plate need to be short than polyimide plate with the time, therefore illustrate that the surface radiating ability of heat sink material of the present invention is better than polyamides
Imines.
The heat sink material of the present invention that polyimides and different ratio is respectively adopted prepares the soft bar lamp FPCs of LED.With
Same set of LED lamp bead and driving power, respectively in connection with the soft bar lamp FPCs of LED of different materials, it is assembled into the soft bars of LED
Lamp, it is respectively placed in baking oven, work 1h respectively under 25,35 and 45 DEG C of three kinds of temperature conditionss, tests the temperature of the soft bar lamps of LED,
It see the table below 2.
The soft bar light temperatures of LED corresponding to the soft bar lamp FPCs of LED are made in the heat sink material of the different ratio of table 2
As can be seen from the above table, the radiating effect of heat sink material of the present invention is better than polyimides, and with corresponding to embodiment 2
The radiating effect of heat sink material is optimal.
To sum up narrate, the radiating effect of heat sink material of the present invention is better than polyimides, and surface radiating ability is better than polyamides
Imines, the soft bar lamp FPCs of LED based on the heat sink material than traditional polyimide flex wiring board good heat dissipation effect,
So as to extend the service life of the soft bar lamps of LED.
The better embodiment of this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party
Formula, can also be on the premise of this patent objective not be departed from one skilled in the relevant art's possessed knowledge
Various changes can be made.
Claims (4)
1. a kind of preparation method of the soft bar lamp FPCs of LED, it is characterised in that step is as follows：(1), dispensing, raw material according to
Mass percent includes：Beryllium oxide nanometer powder 4.5%-6.3%, barium titanate nano powder 3.2%-3.8%, surplus is polyamides
Imines particle；(2), mix, the raw material prepared is well mixed by powder mixer；(3), melt, by well mixed original
In material input firing equipment, it is in molten state completely to be heated to polyimide particles；(4), extrusion moulding, by after heating and polyamides Asia
In the raw material of molten state, by extruding machine extrusion moulding, the soft bar lamp FPCs of LED are made in amine particle.
2. the preparation method of the soft bar lamp FPCs of LED according to claim 1, it is characterised in that raw material is according to matter
Amount percentage includes：Beryllium oxide nanometer powder 5.5%, barium titanate nano powder 3.5%, surplus are polyimide particles.
3. the preparation method of the soft bar lamp FPCs of LED according to claim 1, it is characterised in that in the 3rd step, treat
After raw material is put into firing equipment, firing equipment is warming up to 460 DEG C, and keeps, until polyimide particles are completely in melting
State.
4. a kind of soft bar lamps of LED, it is characterised in that including the soft bar lamp flexible circuitries of LED as described in claim 1-3 is any
Plate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510321362.5A CN104861939B (en) | 2015-06-12 | 2015-06-12 | A kind of heat sink material and the soft bar lamp FPCs of LED based on the material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510321362.5A CN104861939B (en) | 2015-06-12 | 2015-06-12 | A kind of heat sink material and the soft bar lamp FPCs of LED based on the material |
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| CN104861939A CN104861939A (en) | 2015-08-26 |
| CN104861939B true CN104861939B (en) | 2018-02-13 |
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