CN103398304A - Sealed LED lamp - Google Patents
Sealed LED lamp Download PDFInfo
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- CN103398304A CN103398304A CN2013103210539A CN201310321053A CN103398304A CN 103398304 A CN103398304 A CN 103398304A CN 2013103210539 A CN2013103210539 A CN 2013103210539A CN 201310321053 A CN201310321053 A CN 201310321053A CN 103398304 A CN103398304 A CN 103398304A
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Abstract
The invention provides a sealed LED lamp comprising a lamp shell, a substrate, an LED lighting module disposed on the substrate, a lamp shade, and a radiator disposed below the substrate. Both the substrate and the radiator are provided with through holes allowing power cords to pass. The radiator is hermetically connected with the substrate through sealant. The sealant comprises, by weight, 100 parts of polyurethane, 12-15 parts of acrylate, 10-20 parts of oleate, 30-50 parts of dioctyl phthalate, and 1-5 parts of activated nano calcium carbonate. The sealant made from specially selected materials is good in mechanical property and adhesion, allows the radiator and the lamp shell to be hermetically adhered effectively, and prevents moisture, dust and the like from entering the LED lamp from a gap between the radiator and the shell to impair the lifetime of the LED lamp.
Description
Technical field:
The present invention relates to lighting technical field, relate in particular to a kind of LED lamp of good seal performance.
Background technology:
The LED light fixture has the advantage of energy-saving and environmental protection, in the development of light fixture industry, has become main trend.Present LED lamp is applicable to traditional field more, for water proof and dust proof, has in the environment for use of requirement, and the LED lamp that technology is arranged now may not be very applicable, and the LED lamp of prior art uses service life shorter in humidity or the more environment of dust like this.
Existing patent documentation, for example publication number is that the Chinese patent " sealed waterproof LED lamp " of CN201521934U discloses a kind of sealed waterproof LED lamp, it is by offering closed hole on base, cushion block is set in closed hole, cushion block is pressed in closed hole, make the LED light fixture that sealing effectiveness preferably be arranged.
And for example publication number is the Chinese patent " a kind of hermetically-sealed construction of LED street lamp " of CN201866745U, it discloses a kind of hermetically-sealed construction of LED street lamp, by in LED lamp upper cover, setting up defences and protect glass, in the inboard packing sealing of cover plate, in the LED lampshade, place drier, to reach sealing and moistureproof effect.
Publication number is the Chinese patent " closed type Multifunctional LED aquatic animals lamp " of CN202708807U for another example, it discloses a kind of closed type Multifunctional LED aquatic animals lamp, by at U-shaped aluminum hull openend, groove being set, at the gap-fill encapsulant of light cover and groove and on the LED circuit substrate, several LED ultraviolet lights are installed, are made LED lamp good sealing effect and have bactericidal effect.
Above-mentioned patent is all to adopt the mode of architecture advances to improve the sealing property of LED lamp, yet because steam and dust belong to the material that particle is very little, the improvement of sealing structure is difficult to stop fully the intrusion of steam and dust.
Summary of the invention:
Technical problem to be solved by this invention is, for the above-mentioned deficiency of prior art, provides a kind of sealing effectiveness better, in humidity or the more environment of dust, uses the LED lamp of long high-seal in service life.
The technical solution adopted in the present invention is: a kind of sealing LED lamp, comprise lamp housing, substrate, be arranged on LED light emitting module, the lampshade on substrate and be arranged on the radiator under substrate, on described substrate and radiator, be equipped with the through hole that the power supply source line passes, described radiator is connected with body seal by fluid sealant, and the component of described fluid sealant and parts by weight proportioning are:
100 parts of polyurethane;
Acrylate 12-15 part;
Oleate 10-20 part;
O-phthalic acid dibutyl ester 30-50 part;
Active nano-calcium carbonate 1-5 part.
The present invention is by polyurethane, acrylate, oleate, o-phthalic acid dibutyl ester and the active nano-calcium carbonate of choosing proper content, thereby makes the surface drying time of fluid sealant short, viscosity is high, the low good seal performance that makes radiator and substrate of hot strength.
Wherein, polyurethane is the main component of thermal paste of the present invention, for giving other components, provides carrier and the main stickum of conduct.Acrylate is as the viscosity of tackifier for increasing fluid sealant, and acrylate also plays the effect of surfactant jointly with oleate.O-phthalic acid dibutyl ester mainly plays the filler effect, and active nano-calcium carbonate can effectively strengthen reaction speed, Reaction time shorten, the increase efficiency of above-mentioned raw materials as promoter.
Further, the component of described fluid sealant and parts by weight proportioning are:
100 parts of polyurethane;
13 parts of acrylate;
Oleate 15-20 part;
O-phthalic acid dibutyl ester 30-40 part;
Active nano-calcium carbonate 1-3 part.
Further, between described lamp housing and lampshade, be provided with the O RunddichtringO, and between described lampshade and lamp housing, be provided with the pressure ring for the compression by lampshade, O RunddichtringO, lamp housing.Be arranged so that like this sealing property between lampshade and lamp housing is higher.
Further, between described through hole and described power line, also be provided with sealing rubber ring.
Further, prepared in the following way by described fluid sealant:
S1: after matching well and get raw material according to above-mentioned formula, be heated to 70-90 degree centigrade of reaction by polyurethane, active nano-calcium carbonate and after oleate mixes and vacuumize after 10-30 minute;
S2: add the acrylate stirring reaction to vacuumize after 5-10 minute;
S3: add the o-phthalic acid dibutyl ester stirring reaction to dewater to vacuumize after 5-10 minute and make finished product.
In preparation method of the present invention, in the heating reaction temperature of step S1 and whole preparation process, charging sequence is the important factor that affects end properties.
But reaction temperature rising gradually can make that the surface drying time of fluid sealant shortens, viscosity increases make mechanical properties decrease, needs the two relation of balance.
If change charging sequence, by overtesting, find, obvious downslide can occur in mechanical property.Test of many times just confirms finally that the addition step of above-mentioned S1-S3 is to obtain good mechanical property and adhesive property.
Further, prepared in the following way by described fluid sealant:
S1: after matching well and get raw material according to above-mentioned formula, be heated to 85 degrees centigrade of reactions by polyurethane, active nano-calcium carbonate and after oleate mixes and vacuumize after 20 minutes;
S2: add the acrylate stirring reaction to vacuumize after 5 minutes;
S3: add the o-phthalic acid dibutyl ester stirring reaction to dewater to vacuumize after 10 minutes and make finished product.
The present invention compared with prior art has the following advantages: substrate periphery and lamp housing are tightly connected, lampshade and lamp housing are tightly connected, between power line and through hole, be provided with sealing rubber ring, so just can well keep the LED light emitting module to be in a sealed environment, make whole LED lamp can well adapt to humidity or the more environment of dust, make the service life of whole LED lamp higher.The fluid sealant that adopts special material to make has good mechanical property and adhesive property, make sealing and bond effect between radiator and lamp housing good, steam and dust etc. can not enter by the gap between radiator and shell LED lamp inside affects the LED lamp life-span.
The accompanying drawing explanation:
Fig. 1 is the structural representation of a kind of sealing LED lamp of the present invention;
Fig. 2 is the preparation flow schematic diagram of fluid sealant in LED lamp of the present invention.
As shown in the figure: 1, lamp housing; 2, substrate; 3, LED light emitting module; 4, lampshade; 5, radiator; 6, through hole; 7, O RunddichtringO; 8, pressure ring; 100, fluid sealant.
The specific embodiment:
Below in conjunction with accompanying drawing and the specific embodiment, the present invention is described further, but the present invention is not limited only to the following specific embodiment.
As shown in Figure 1: a kind of high sealing LED lamp, comprise lamp housing 1, substrate 2, be arranged on LED light emitting module 3, the lampshade 4 on substrate 2 and be arranged on the radiator 5 under substrate 2, on described substrate 2 and radiator 5, be equipped with the through hole 6 that the power supply source line passes, described lamp housing 1 is tightly connected with lampshade 4, described substrate 2 peripheries are tightly connected with lamp housing 1, between power line and through hole 6, also are provided with sealing rubber ring.Radiator 5 is tightly connected by fluid sealant 100 and lamp housing 1.
Between described lamp housing 1 and lampshade 4, be provided with O RunddichtringO 7, and be provided with the pressure ring 8 for the compression by lampshade 4, O RunddichtringO 7, lamp housing 1 between described lampshade 4 and lamp housing 1.
The component of fluid sealant 100 and parts by weight proportioning are:
100 parts of polyurethane;
12 parts of acrylate;
10 parts of oleates;
30 parts of o-phthalic acid dibutyl esters;
1 part of active nano-calcium carbonate.
By preparation flow as shown in Figure 2, prepared by above-mentioned fluid sealant:
S1: after matching well and get raw material according to above-mentioned formula, be heated to 70 degrees centigrade of reactions by polyurethane, active nano-calcium carbonate and after oleate mixes and vacuumize after 10-30 minute;
S2: add the acrylate stirring reaction to vacuumize after 5-10 minute;
S3: add the o-phthalic acid dibutyl ester stirring reaction to dewater to vacuumize after 5-10 minute and make finished product.
Viscosity, surface drying time and the hot strength of the fluid sealant that test finally prepares, obtain test data in Table one.
Wherein, viscosity is to use the luxuriant and rich with fragrance viscosimeter of small profits to measure; Surface drying time is to touch fluid sealant with finger, records glue from being expressed into the tack-free time used; Hot strength adopts conventional hot strength test machine to get final product.
The component of fluid sealant 100 and parts by weight proportioning are:
100 parts of polyurethane;
13 parts of acrylate;
15 parts of oleates;
40 parts of o-phthalic acid dibutyl esters;
3 parts of active nano-calcium carbonates.
By preparation flow as shown in Figure 2, prepared by above-mentioned fluid sealant:
S1: after matching well and get raw material according to above-mentioned formula, be heated to 85 degrees centigrade of reactions by polyurethane, active nano-calcium carbonate and after oleate mixes and vacuumize after 20 minutes;
S2: add the acrylate stirring reaction to vacuumize after 8 minutes;
S3: add the o-phthalic acid dibutyl ester stirring reaction to dewater to vacuumize after 6 minutes and make finished product.
Viscosity, surface drying time and the hot strength of the fluid sealant that test finally prepares, obtain test data in Table one.
The component of fluid sealant 100 and parts by weight proportioning are:
100 parts of polyurethane;
15 parts of acrylate;
20 parts of oleates;
50 parts of o-phthalic acid dibutyl esters;
5 parts of active nano-calcium carbonates.
By preparation flow as shown in Figure 2, prepared by above-mentioned fluid sealant:
S1: after matching well and get raw material according to above-mentioned formula, be heated to 90 degrees centigrade of reactions by polyurethane, active nano-calcium carbonate and after oleate mixes and vacuumize after 10 minutes;
S2: add the acrylate stirring reaction to vacuumize after 5 minutes;
S3: add the o-phthalic acid dibutyl ester stirring reaction to dewater to vacuumize after 5 minutes and make finished product.
Viscosity, surface drying time and the hot strength of the fluid sealant that test finally prepares, obtain test data in Table one.
Test data
Table one
As can be seen from the above table, fluid sealant of the present invention has sealing and adhesive property preferably, its viscosity is high, hot strength is low, surface drying time is short, be highly suitable for being tightly connected of radiator and shell in sealing LED, can effectively prevent from forming gap between radiator and shell, prevent that steam and dust from entering LED inside by gap and affecting its service life.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various modifications or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Claims (6)
1. sealing LED lamp, comprise lamp housing, substrate, be arranged on LED light emitting module, the lampshade on substrate and be arranged on the radiator under substrate, on described substrate and radiator, be equipped with the through hole that the power supply source line passes, it is characterized in that: described radiator is connected with body seal by fluid sealant, and the component of described fluid sealant and parts by weight proportioning are:
100 parts of polyurethane;
Acrylate 12-15 part;
Oleate 10-20 part;
O-phthalic acid dibutyl ester 30-50 part;
Active nano-calcium carbonate 1-5 part.
2. sealing LED lamp according to claim 1, it is characterized in that: the component of described fluid sealant and parts by weight proportioning are:
100 parts of polyurethane;
13 parts of acrylate;
Oleate 15-20 part;
O-phthalic acid dibutyl ester 30-40 part;
Active nano-calcium carbonate 1-3 part.
3. sealing LED lamp according to claim 1 and 2, is characterized in that: between described lamp housing and lampshade, be provided with the O RunddichtringO, and between described lampshade and lamp housing, be provided with the pressure ring for the compression by lampshade, O RunddichtringO, lamp housing.
4. sealing LED lamp according to claim 1 and 2, is characterized in that: between described through hole and described power line, also be provided with sealing rubber ring.
5. sealing LED lamp according to claim 1 and 2, it is characterized in that: prepared by described fluid sealant in the following way:
S1: after matching well and get raw material according to above-mentioned formula, be heated to 70-90 degree centigrade of reaction by polyurethane, active nano-calcium carbonate and after oleate mixes and vacuumize after 10-30 minute;
S2: add the acrylate stirring reaction to vacuumize after 5-10 minute;
S3: add the o-phthalic acid dibutyl ester stirring reaction to dewater to vacuumize after 5-10 minute and make finished product.
6. sealing LED lamp according to claim 5, it is characterized in that: prepared by described fluid sealant in the following way:
S1: after matching well and get raw material according to above-mentioned formula, be heated to 85 degrees centigrade of reactions by polyurethane, active nano-calcium carbonate and after oleate mixes and vacuumize after 20 minutes;
S2: add the acrylate stirring reaction to vacuumize after 5 minutes;
S3: add the o-phthalic acid dibutyl ester stirring reaction to dewater to vacuumize after 10 minutes and make finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310321053.9A CN103398304B (en) | 2013-07-23 | 2013-07-23 | Sealed LED lamp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310321053.9A CN103398304B (en) | 2013-07-23 | 2013-07-23 | Sealed LED lamp |
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| CN103398304A true CN103398304A (en) | 2013-11-20 |
| CN103398304B CN103398304B (en) | 2015-06-03 |
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| CN201310321053.9A Active CN103398304B (en) | 2013-07-23 | 2013-07-23 | Sealed LED lamp |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108949043A (en) * | 2018-07-16 | 2018-12-07 | 广州昱辰元创节能环保科技有限公司 | A kind of building board marine glue and its preparation method and application |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108949043A (en) * | 2018-07-16 | 2018-12-07 | 广州昱辰元创节能环保科技有限公司 | A kind of building board marine glue and its preparation method and application |
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| CN103398304B (en) | 2015-06-03 |
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Address after: 315000 Zhujiaqiao village, jishigang Town, Haishu District, Ningbo City, Zhejiang Province Patentee after: Ningbo Aishi Electric Equipment Co.,Ltd. Address before: 315171 Zhejiang city of Ningbo province Yinzhou District Ji Shi Gang Zhen Zhu Jia Qiao Cun Patentee before: Ningbo Aishi Electric Equipment Co.,Ltd. |