CN104406141A - Cooling fin for light-emitting diode lamp and manufacturing method of cooling fin - Google Patents
Cooling fin for light-emitting diode lamp and manufacturing method of cooling fin Download PDFInfo
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- CN104406141A CN104406141A CN201410373803.1A CN201410373803A CN104406141A CN 104406141 A CN104406141 A CN 104406141A CN 201410373803 A CN201410373803 A CN 201410373803A CN 104406141 A CN104406141 A CN 104406141A
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- parts
- fin
- cooling fin
- glass fibre
- raw material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2101/00—Point-like light sources
Abstract
The invention belongs to the field of photoelectric lighting materials, and discloses a cooling fin for a light-emitting diode lamp. The cooling fin comprises, by weight, 20 parts of silicon carbide, 15 parts of magnesium oxide, 10 parts of graphite, 7 parts of glass fibers, 7 parts of makrolon, 6 parts of polyglycolic acid, 4 parts of decabromodiphenyl ethane, 4 parts of glycerin monostearate, 3 parts of vinisol, 2 parts of aluminum triphosphate, 2 parts of antimonous oxide and 2 parts of silica-gel powder. The invention further discloses a manufacturing method of the cooling fin. The cooling fin manufactured by the method is good in heat-conducting property, flame retardant property and mechanical property and is good in market prospect.
Description
Technical field
The invention belongs to photoelectric lighting Material Field, be specifically related to a kind of fin for LED lamp and preparation method thereof.
Background technology
LED lamp; also known as LED lamp; refer to energy printing opacity, distribution and the photodistributed utensil of change LED light source, comprise except LED light source all for the whole parts and components needed for fixing and protection LED light source, and be connected necessary circuit annex with power supply.The technical characterstics such as LED lamp is efficient with it, energy-conservation, long-lived, small and exquisite, are becoming main force's product of illumination market of new generation, and are effectively pulling the high speed development of environmental protection and energy-conservation industry.
Due to the light occurrence features of LED, its energy input when lighting device only has 20% to be converted into luminous energy, and remaining 80% is then converted into the heat energy that knot divides, thus adds inner temperature.The increase of internal temperature makes LED illumination lamp, and especially during compact design, its performance such as luminous efficiency will significantly decline, and as at high temperature used for a long time, will shorten the life-span of LED illumination etc.In order to solve the problem, in actual design application, need the thermal release produced LED inside to outside.In the prior art, employ the radiating piece by having heat radiating fin structure, by the effect such as heat transfer or thermal convection current come cooling LED chip produce heat.
The fin applied in prior art LED lamp mostly there is heat transfer efficiency and electrical insulation capability is poor, easy thermal deformation, and the defects such as tensile yield strength difference and easily fracture, greatly reduce the life-span of light fixture.A lot of researcher is improved by exploration new material and the performance of new technology to fin, but often various performance can not get both, and cannot meet the demands; Prior art has done a large amount of improvement to fin material, wherein, the radiating element that the high heat conductive insulating plastics that Chinese patent CN200810121442 describes a kind of costliness are manufactured by die press technology for forming, this radiating element possesses good heat conductivility, but mechanical performance is barely satisfactory.
Summary of the invention
The poor defect of mechanical performance that the present invention exists to overcome prior art, provides a kind of fin for LED lamp; Present invention also offers the preparation method of fin.
The present invention is achieved by the following technical solutions:
For a fin for LED lamp, it is prepared from by the raw material of following weight portion:
Carborundum 16-20 part, magnesia 12-15 part, graphite 8-10 part, glass fibre 6-7 part, Merlon 6-7 part, polyglycolic acid 5-6 part, TDE 3-4 part, glycerin monostearate 3-4 part, vinyl chloride-vinyl acetate resin 2-3 part, aluminium triphosphate 1-2 part, antimony oxide 1-2 part, silica white 1-2 part;
Present invention also offers the preparation method of above-mentioned fin, it comprises the steps:
1) raw material is taken: take each raw material for standby according to weight portion;
2) prepare material A: carborundum, magnesia and graphite are delivered to ball mill, be milled to the powder that particle diameter is more than 500 orders, then mixed with silica white by powder, 500 revs/min are stirred 10 minutes, obtain material A; Wherein, the particle diameter of silica white is 300-400 order, and pore volume is 0.35-0.45mL/g, and specific area is 600-800m
2/ g;
3) material B is prepared: by glass fibre, Merlon, polyglycolic acid, TDE, glycerin monostearate, vinyl chloride-vinyl acetate resin, aluminium triphosphate and antimony oxide, put into successively in mixer, stir, then being placed in temperature is 85-90 DEG C, relative humidity is 12-16 hour in the hygrothermal environment of 90%, obtains material B;
4) melting injection mo(u)lding: material A and material B are put in reactor, 1000 turns/min centrifugal mixer 10 minutes, the batch mixing stirred is discharged in double screw extruder, is expressed in injection machine after the complete melting of batch mixing, injection mo(u)lding and get final product at 290-300 DEG C.
Wherein, the diameter of glass fibre is 10-20um, and length is 50-100um.
The beneficial effect that the present invention obtains mainly contain following some:
The present invention is by choose reasonable raw material, and adjust compatibility amount, the fin various aspects of performance of preparation is excellent, is applicable to the fin of LED lamp; Fin prepared by the present invention is while effectively keeping good heat conductivility and insulating properties, and tensile yield strength and elongation at break also significantly improve; The present invention, by adding the raw materials such as carborundum, glass fibre, Merlon, antimony oxide and silica white in the composite, substantially increases heat conductivility, fire resistance and mechanical performance; Preparation method of the present invention is simple to operate, and production cost is low, is conducive to industrial application; Fin prepared by the present invention is high temperature resistant, ageing-resistant, long service life.
Detailed description of the invention
Technical scheme in the application is understood better in order to make those skilled in the art person, below in conjunction with the application's specific embodiment, carry out clearly, intactly describing to the present invention, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, should belong to the scope of protection of the invention.
Embodiment 1
For a fin for LED lamp, it is prepared from by the raw material of following weight portion:
16 parts, carborundum, 12 parts, magnesia, 8 parts, graphite, 6 parts, glass fibre, Merlon 6 parts, polyglycolic acid 5 parts, TDE 3 parts, glycerin monostearate 3 parts, vinyl chloride-vinyl acetate resin 2 parts, aluminium triphosphate 1 part, antimony oxide 1 part, silica white 1 part;
The preparation method of above-mentioned fin comprises the steps:
1) raw material is taken: take each raw material for standby according to weight portion;
2) prepare material A: carborundum, magnesia and graphite are delivered to ball mill, be milled to the powder that particle diameter is more than 500 orders, then mixed with silica white by powder, 500 revs/min are stirred 10 minutes, obtain material A; Wherein, the particle diameter of silica white is 300-400 order, and pore volume is 0.35-0.45mL/g, and specific area is 600-800m
2/ g;
3) material B is prepared: by glass fibre, Merlon, polyglycolic acid, TDE, glycerin monostearate, vinyl chloride-vinyl acetate resin, aluminium triphosphate and antimony oxide, put into successively in mixer, stir, then being placed in temperature is 85 DEG C, relative humidity is in the hygrothermal environment of 90% 16 hours, obtains material B;
4) melting injection mo(u)lding: material A and material B are put in reactor, 1000 turns/min centrifugal mixer 10 minutes, the batch mixing stirred is discharged in double screw extruder, is expressed in injection machine after the complete melting of batch mixing, injection mo(u)lding and get final product at 290 DEG C.
Wherein, the diameter of glass fibre is 10um, and length is 50um.
Embodiment 2
For a fin for LED lamp, it is prepared from by the raw material of following weight portion:
20 parts, carborundum, 15 parts, magnesia, 10 parts, graphite, 7 parts, glass fibre, Merlon 7 parts, polyglycolic acid 6 parts, TDE 4 parts, glycerin monostearate 4 parts, vinyl chloride-vinyl acetate resin 3 parts, aluminium triphosphate 2 parts, antimony oxide 2 parts, silica white 2 parts;
Present invention also offers the preparation method of above-mentioned fin, it comprises the steps:
1) raw material is taken: take each raw material for standby according to weight portion;
2) prepare material A: carborundum, magnesia and graphite are delivered to ball mill, be milled to the powder that particle diameter is more than 500 orders, then mixed with silica white by powder, 500 revs/min are stirred 10 minutes, obtain material A; Wherein, the particle diameter of silica white is 300-400 order, and pore volume is 0.35-0.45mL/g, and specific area is 600-800m
2/ g;
3) material B is prepared: by glass fibre, Merlon, polyglycolic acid, TDE, glycerin monostearate, vinyl chloride-vinyl acetate resin, aluminium triphosphate and antimony oxide, put into successively in mixer, stir, then being placed in temperature is 90 DEG C, relative humidity is in the hygrothermal environment of 90% 12 hours, obtains material B;
4) melting injection mo(u)lding: material A and material B are put in reactor, 1000 turns/min centrifugal mixer 10 minutes, the batch mixing stirred is discharged in double screw extruder, is expressed in injection machine after the complete melting of batch mixing, injection mo(u)lding and get final product at 300 DEG C.
Wherein, the diameter of glass fibre is 20um, and length is 100um.
Embodiment 3
Be of a size of 50 × 20 × 8 (units: millimeter) for profile, detect the performance parameter of the fin of embodiment 1 and embodiment 2 preparation, concrete outcome is in table 1:
Table 1
Above in conjunction with specific embodiments to invention has been exemplary description; obvious realization of the present invention is not subject to the restrictions described above; as long as have employed the various improvement that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all in protection scope of the present invention without to improve.
Claims (3)
1. for a fin for LED lamp, it is characterized in that, prime number fin is prepared from by the raw material of following weight portion:
Carborundum 16-20 part, magnesia 12-15 part, graphite 8-10 part, glass fibre 6-7 part, Merlon 6-7 part, polyglycolic acid 5-6 part, TDE 3-4 part, glycerin monostearate 3-4 part, vinyl chloride-vinyl acetate resin 2-3 part, aluminium triphosphate 1-2 part, antimony oxide 1-2 part, silica white 1-2 part.
2. fin as claimed in claim 1, it is characterized in that, the preparation method of described fin comprises the steps:
1) raw material is taken: take each raw material for standby according to weight portion;
2) prepare material A: carborundum, magnesia and graphite are delivered to ball mill, be milled to the powder that particle diameter is more than 500 orders, then mixed with silica white by powder, 500 revs/min are stirred 10 minutes, obtain material A; Wherein, the particle diameter of silica white is 300-400 order, and pore volume is 0.35-0.45mL/g, and specific area is 600-800m
2/ g;
3) material B is prepared: by glass fibre, Merlon, polyglycolic acid, TDE, glycerin monostearate, vinyl chloride-vinyl acetate resin, aluminium triphosphate and antimony oxide, put into successively in mixer, stir, then being placed in temperature is 85-90 DEG C, relative humidity is 12-16 hour in the hygrothermal environment of 90%, obtains material B;
4) melting injection mo(u)lding: material A and material B are put in reactor, 1000 turns/min centrifugal mixer 10 minutes, the batch mixing stirred is discharged in double screw extruder, is expressed in injection machine after the complete melting of batch mixing, injection mo(u)lding and get final product at 290-300 DEG C.
3. the fin as described in claim 1-2, is characterized in that, the diameter of described glass fibre is preferably 10-20um, and length is 50-100um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410373803.1A CN104406141B (en) | 2014-07-31 | 2014-07-31 | It is a kind of for fin of LED lamp and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410373803.1A CN104406141B (en) | 2014-07-31 | 2014-07-31 | It is a kind of for fin of LED lamp and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104406141A true CN104406141A (en) | 2015-03-11 |
| CN104406141B CN104406141B (en) | 2017-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410373803.1A Expired - Fee Related CN104406141B (en) | 2014-07-31 | 2014-07-31 | It is a kind of for fin of LED lamp and preparation method thereof |
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| Country | Link |
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| CN (1) | CN104406141B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104725827A (en) * | 2015-04-12 | 2015-06-24 | 芜湖市神龙新能源科技有限公司 | LED lamp cooling fin convenient for cooling |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6162849A (en) * | 1999-01-11 | 2000-12-19 | Ferro Corporation | Thermally conductive thermoplastic |
| CN103044889A (en) * | 2012-12-31 | 2013-04-17 | 广东银禧科技股份有限公司 | LED lamp used extrusion grade heat-conducting makrolon material and preparation method thereof |
| CN103524863A (en) * | 2013-09-25 | 2014-01-22 | 吴江市天源塑胶有限公司 | Heat-conducting wear-resistant plastic |
| CN103865257A (en) * | 2014-03-31 | 2014-06-18 | 厦门市瑞胜发塑胶工业有限公司 | Thermoplastic polyamide composition and preparation method thereof |
| WO2014091350A2 (en) * | 2012-12-14 | 2014-06-19 | Sabic Innovative Plastics Ip B.V. | Thermally conductive flame retardant polymer compositions and uses thereof |
-
2014
- 2014-07-31 CN CN201410373803.1A patent/CN104406141B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6162849A (en) * | 1999-01-11 | 2000-12-19 | Ferro Corporation | Thermally conductive thermoplastic |
| WO2014091350A2 (en) * | 2012-12-14 | 2014-06-19 | Sabic Innovative Plastics Ip B.V. | Thermally conductive flame retardant polymer compositions and uses thereof |
| CN103044889A (en) * | 2012-12-31 | 2013-04-17 | 广东银禧科技股份有限公司 | LED lamp used extrusion grade heat-conducting makrolon material and preparation method thereof |
| CN103524863A (en) * | 2013-09-25 | 2014-01-22 | 吴江市天源塑胶有限公司 | Heat-conducting wear-resistant plastic |
| CN103865257A (en) * | 2014-03-31 | 2014-06-18 | 厦门市瑞胜发塑胶工业有限公司 | Thermoplastic polyamide composition and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104725827A (en) * | 2015-04-12 | 2015-06-24 | 芜湖市神龙新能源科技有限公司 | LED lamp cooling fin convenient for cooling |
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| CN104406141B (en) | 2017-07-28 |
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Granted publication date: 20170728 Termination date: 20180731 |