CN203023911U - Waterproof LED (Light Emitting Diode) lamp board - Google Patents
Waterproof LED (Light Emitting Diode) lamp board Download PDFInfo
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- CN203023911U CN203023911U CN2013200230644U CN201320023064U CN203023911U CN 203023911 U CN203023911 U CN 203023911U CN 2013200230644 U CN2013200230644 U CN 2013200230644U CN 201320023064 U CN201320023064 U CN 201320023064U CN 203023911 U CN203023911 U CN 203023911U
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- led lamp
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Abstract
The utility model discloses a waterproof LED (Light Emitting Diode) lamp board. The waterproof LED lamp board comprises a printed circuit board (1) and an LED lamp (2), wherein the LED lamp (2) is electrically connected with the printed circuit board (1); the LED lamp (2) is closely fixed on the printed circuit board (1); and a waterproof Parylene coating (3) is coated on the printed circuit board (1). The waterproof LED lamp board has the beneficial effects that thick silicon rubber does not need to be filled on the upper surface of the lamp board or a waterproof structure piece does not need to be additionally arranged on a lamp, so that the whole weight of the lamp can be greatly reduced; the Parylene coating is good for dissipating heat caused by working of components so that the possibility that water and mist enter the interior of the lamp is greatly reduced; compared with a traditional silicon rubber coating, the Parylene coating is thinner and more transparent, so that the optical brightness and beautiful degree of the lamp are increased; the Parylene coating can be coated on surfaces with various shapes so as to provide the better waterproof performance; and the production efficiency of the lamp is improved and the service life of the lamp is prolonged.
Description
Technical field
The utility model relates to light fixture, more particularly, relates to a kind of Waterproof LED lamp plate.
Background technology
Along with the continuous progress of modern lighting engineering, make light fixture satisfying functional need and bringing into play to greatest extent under the prerequisite of light source effect, more pay attention to the ornamental aesthetic effects such as attractive in appearance as far as possible on the light fixture appearance and modeling, comfortable, durable.
People of today keep showing great attention to CO2 emissions, and people have also progressively strengthened the consciousness of energy-conserving and environment-protective.The LED technology is beneficial to and realizes sustainable development due to characteristics such as its energy-saving and environmental protection, and this meets these epoch people to low-carbon (LC), the life requirement of green energy.
LED is little by feat of volume, power consumption is low, long service life, brightness is high, heat is low, the feature of environmental protection is high, the advantage such as sturdy and durable has obtained approve widely and favor.Between a few years, the LED facility has substituted traditional lighting fitting on a large scale, especially in most advanced and sophisticated industry and fields such as automobile, electronic apparatus, plant growth, advertisement, medical treatment.
The water resistance of LED outdoor lamp is extremely important, is directly connected to the life-span of LED light fixture and the safety of electricity consumption.At present common outdoor LED lamp waterproof construction is mainly to adopt the process structures such as encapsulating, silica gel sleeve pipe or PVC sleeve pipe to carry out water-proofing treatment on the market.
The protective coatings such as the epoxy resin that tradition is used, polychlorostyrene fat, organic siliconresin, polyacrylate are all liquid coatings.Due to reasons such as the viscosity of liquid and surface tension, coating layer thickness is inhomogeneous, locates coating at rib, angle etc. thinner, between components and parts, and when only very little spacing being arranged between substrate, can be because being coated with laminar flow less than forming air gap.Curing of coatings can because of the volatilization of solvent or little molecule auxiliary agent, produce shrinkage stress or form small pin hole after oven dry.The dielectric strength of these conventional coatings generally also below 2000V/25um, therefore must through repeatedly coating, need could realize protecting more reliably with very thick coating.
Silicon rubber is a kind of high activity sorbing material, and transparent or milky granular solids has open loose structure, and adsorptivity is strong, can adsorb many kinds of substance.The problem that such fitting structure is easy to occur is: when the lamp body duty and the inside and outside pressure difference after extinguishing larger, easily cause forming condensed water in housing glass breakage and housing, directly affect the lamp body life-span.Particularly the housing of luminaire of outdoor layout is bearing extraneous temperature and pressure variation continually, and the temperature, dust, dirt and the moisture that constantly change affect the outdoor lighting lamp case widely.For example, the temperature that the rainfall meeting causes housing of luminaire to produce sharply descends, and like this, air and moisture just can enter casing inside by seal clearance, and moisture is attached on the inwall of casing and condenses into the globule, and this will have a strong impact on the performance of light fixture product.Simultaneously, the continuous variation of temperature makes sealing strip along with STRESS VARIATION, sealing strip is produced tired.This means to be not only moisture, comprise that water and various liquid finally can see through the gap and enter case inside.
The water inlet of usually said light fixture can be considered in the situation that normal the use, the fault of the inner inlet that light fixture causes due to poor sealing.The light fixture water inlet has a strong impact on bulb life and circuit safety.The factor that affects the light fixture water inlet can be summarized as following two classes: the one, and the Seal Design of light fixture self is bad; The 2nd, be sealed and matched between light fixture end and wire harness end plug-in unit improper.The formation principle of fog is the membranaceous and dropwise condensation that aqueous vapor forms on the face shield surface lower than its saturation temperature in light fixture, and namely steam gas-liquid under certain condition transforms; Will form when having enough aqueous vapors, the larger temperature difference and having three conditions of condensation nuclei in satisfying lamp, this will have a strong impact on aesthetics and the illumination of light fixture outward appearance.Therefore, affect distribution and Material selection and the treatment process that factor that fog forms is mainly temperature field in lamp, field of flow, vapour concentration field.
To sum up, the LED lamp of prior art exists waterproof effect poor and then affect service life and the light fixture defective attractive in appearance of LED lamp.
The utility model content
The technical problems to be solved in the utility model is, exists waterproof effect poor and then affect service life and the light fixture defective attractive in appearance of LED lamp for the above-mentioned LED lamp of prior art, and a kind of Waterproof LED lamp plate is provided.Waterproof LED lamp plate of the present utility model has overcome defects, and because depositing mutually the Parylene coating at the printed circuit board (PCB) air, the Parylene coat is completed in the polymerization of printed circuit assembly surface deposition by the little molecule gas of paraxylene biradical of activity.The little molecular energy of gaseous state is penetrated into and comprises on the base material that mounts any one fine gap below part and depositing, and forms approximately 500,000 high straight polymer of molecular weight.It does not have the little molecules such as auxiliary agent solvent, can not form injury to base material, the overcoat of even thickness and excellent performance combine, make the Parylene coating that protection very reliably can be provided the surface of printed circuit device, even pass through salt spray test, very large change can not occur in surface insulation resistance yet, and the heat that coating as thin as a wafer produces when components and parts are worked dissipates also highly beneficial.Because the molecular structure symmetry is better, make it still have less dielectric loss and dielectric constant under higher frequency in addition, it is that the reliable protection of printed circuit board (PCB) has been created condition that its this high-frequency low-consumption characteristic makes it.And have effects such as protection against the tide, mildew-resistant, anticorrosion, anti-salt fog, adopt simultaneously vacuum vapor deposition to apply the Parylene coating, the Parylene coating can be coated to the surface of various shapes like this, comprise sharp-pointed seamed edge, in the crack and inner surface, form the diaphragm consistent with original shape, thereby water resistance preferably is provided; Adopt the contour structures of the light fixture of Waterproof LED lamp plate making of the present utility model, can not need to carry out other water-proofing treatment, simplified like this production stage of LED light fixture, improved production efficiency, improved simultaneously reliability, the water proofing property of the light fixture that makes; Because the light fixture that adopts Waterproof LED lamp plate of the present utility model to make has waterproof effect preferably, increased like this service life of LED lamp, can significantly reduce the weight of light fixture integral body, and greatly reduced the lamp interior water inlet and advanced the probability of fog, increased simultaneously the optical brightness of light fixture and the aesthetics of outward appearance.
The technical scheme that its technical problem that solves the utility model adopts is: construct a kind of Waterproof LED lamp plate, comprise printed circuit board (PCB) and LED lamp, described LED lamp and described printed circuit board (PCB) are electrically connected and described LED lamp reclines is fixed on described printed circuit board (PCB), is coated with the Parylene coating for waterproof on described printed circuit board (PCB).
In Waterproof LED lamp plate described in the utility model, described Parylene coating is coated on the whole body of described printed circuit board (PCB).
In Waterproof LED lamp plate described in the utility model, the thickness of described Parylene coating is between the 0.1-100 micron.
In Waterproof LED lamp plate described in the utility model, the two ends of described printed circuit board (PCB) also are installed with the water joint line, be used for a described Waterproof LED lamp plate is connected to external control circuit and power supply, perhaps be used for a plurality of described Waterproof LED lamp plates of stating are connected in series.
In Waterproof LED lamp plate described in the utility model, described Waterproof LED lamp plate also comprises the electronic devices and components of being located on described printed circuit board (PCB).
In Waterproof LED lamp plate described in the utility model, described printed circuit board (PCB) comprises the metal base printed circuit board (PCB).
In Waterproof LED lamp plate described in the utility model, described printed circuit board (PCB) is provided with a plurality of described LED lamps.
In Waterproof LED lamp plate described in the utility model, a plurality of described LED lamps are positioned on the same face of described printed circuit board (PCB).
In Waterproof LED lamp plate described in the utility model, described LED lamp is granular LED lamp.
Implement Waterproof LED lamp plate of the present utility model, have following beneficial effect: because be coated with the Parylene coating on printed circuit board (PCB), the Parylene coat is completed in the polymerization of printed circuit assembly surface deposition by the little molecule gas of paraxylene biradical of activity.The little molecular energy of gaseous state is penetrated into and comprises on the base material that mounts any one fine gap below part and depositing, and forms approximately 500,000 high straight polymer of molecular weight.It does not have the little molecules such as auxiliary agent solvent, can not form injury to base material, the overcoat of even thickness and excellent performance combine, make the Parylene coating that protection very reliably can be provided the surface of printed circuit device, even pass through salt spray test, very large change can not occur in surface insulation resistance yet, and the heat that coating as thin as a wafer produces when components and parts are worked dissipates also highly beneficial.Because the molecular structure symmetry is better, make it still have less dielectric loss and dielectric constant under higher frequency in addition, it is that the reliable protection of printed circuit board (PCB) has been created condition that its this high-frequency low-consumption characteristic makes it.And have effects such as protection against the tide, mildew-resistant, anticorrosion, anti-salt fog, adopt simultaneously vacuum vapor deposition to apply the Parylene coating, the Parylene coating can be coated to the surface of various shapes like this, comprise sharp-pointed seamed edge, in the crack and inner surface, form the diaphragm consistent with original shape, thereby water resistance preferably is provided; Adopt the contour structures of the light fixture of Waterproof LED lamp plate making of the present utility model, can not need to carry out other water-proofing treatment, simplified like this production stage of LED light fixture, improved production efficiency, improved simultaneously reliability, the water proofing property of the light fixture that makes; Because the light fixture that adopts Waterproof LED lamp plate of the present utility model to make has waterproof effect preferably, increased like this service life of LED lamp, can significantly reduce the weight of light fixture integral body, and greatly reduced the lamp interior water inlet and advanced the probability of fog, increased simultaneously the optical brightness of light fixture and the aesthetics of outward appearance.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in accompanying drawing:
Fig. 1 is the plan structure schematic diagram of the utility model Waterproof LED lamp plate embodiment;
Fig. 2 is the structural representation of Fig. 1 side-looking;
Fig. 3 be in Fig. 2 the B place along the cutaway view Amplified image of A-A line;
Fig. 4 is the left view of Fig. 1.
The specific embodiment
Understand for technical characterictic of the present utility model, purpose and effect being had more clearly, now contrast accompanying drawing and describe the specific embodiment of the present utility model in detail.
The Waterproof LED lamp plate of the present embodiment is mainly to exist waterproof effect poor and then affect the service life of LED lamp and the technical scheme that light fixture defective attractive in appearance provides for LED lamp in prior art.The main know-why of Waterproof LED lamp plate of the present embodiment is to adopt vacuum vapor deposition to apply the Parylene coating 3 that is used for waterproof on printed circuit board (PCB) 1, thereby overcome the defects of prior art, the LED lamp that makes with the Waterproof LED lamp plate of the present embodiment, has water resistance preferably, and long service life has also been avoided causing because LED lamp waterproof effect is poor water inlet and fog in lamp and then has been affected quality and the problem such as attractive in appearance of light fixture.
As shown in Figure 1, Fig. 1 is the plan structure schematic diagram of the present embodiment.The Waterproof LED lamp plate of the present embodiment, comprise printed circuit board (PCB) 1 and LED lamp 2, LED lamp 2 is electrically connected with printed circuit board (PCB) 1 and LED lamp 2 reclines is fixed on printed circuit board (PCB) 1, is coated with the Parylene coating 3(Parylene for waterproof on printed circuit board (PCB) 1).Parylene coating 3 can adopt the method for vacuum vapor deposition to be coated on printed circuit board (PCB) 1.
As shown in Figure 2, Fig. 2 is the structural representation of Fig. 1 side-looking.Printed circuit board (PCB) 1 can be common printed circuit board (PCB) (PCB), can be also the printed circuit board (PCB) (MCPCB) of metal base; The character of printed circuit board (PCB) 1 can be any character, and such as being circle, rectangle, square etc., the printed circuit board (PCB) 1 of the present embodiment is circular.Certainly, can also have other electronic devices and components on printed circuit board (PCB), these electronic devices and components can adopt the technology such as surface mount or the assembling of plug-in unit device to be located on printed circuit board (PCB) 1.
As Fig. 2, shown in Figure 4, Fig. 4 is the left view of Fig. 1.The LED lamp 2 of the present embodiment is granular LED lamp, and quantity is a plurality of (such as but not limited to being 12), and LED lamp 2 all is positioned on the same face of printed circuit board (PCB) 1.In other embodiments, LED lamp 2 can be also to be at least 1, and other are identical with the present embodiment.LED lamp 2 is fixed on printed circuit board (PCB) 1 by the mode of welding, for example LED lamp 2 can be welded on printed circuit board (PCB) 1, realizes the electrical connection of LED lamp 2 and printed circuit board (PCB) 1.
As shown in Figure 3, Fig. 3 be in Fig. 2 the B place along the cutaway view Amplified image of A-A line.Parylene coating 3 is answered conformal coating on printed circuit board (PCB) 1 and Parylene coating 3 is coated on the whole body of printed circuit board (PCB) 1.So-called conformal coating, refer to that Parylene coating 3 and the shape of Waterproof LED lamp plate are coated in its surface matchingly, certainly, with vacuum vapor deposition method deposition Parylene coating 3 time, also can be coated with Parylene coating 3 on LED lamp 2, but because Parylene coating 3 is transparent material and its very thin thickness, so this can not affect the luminous of LED lamp 2 substantially.
The two ends of printed circuit board (PCB) 1 also are installed with water joint line (not indicating in figure), are used for water-proof LED lamp 2 plates are connected to external control circuit and power supply, perhaps are used for a plurality of water-proof LED lamp 2 plates of stating are connected in series.
Relatively traditional lamp plate adopts the process structures such as encapsulating, silica gel sleeve pipe or PVC sleeve pipe to carry out water-proofing treatment, Rayleigh coating 3 possesses following advantage: 1. preferably waterproof moisture-proof effect (the little molecular energy of gaseous state is penetrated into and comprises on the base material that mounts any one fine gap below part and depositing, and forms approximately 500,000 high straight polymer of molecular weight.It does not have the little molecules such as auxiliary agent solvent, can not form injury to base material, and the overcoat of even thickness and excellent performance combine, and makes the Parylene coating that protection very reliably can be provided the surface of printed circuit device).2. ultra-thin insulating barrier.Lightweight/without residual stress.4. complete similar shape.5. be fit to the space aerospace applications without venting.6. biocompatibility.7. good dry lubrication.8. significantly increase device reliability.9. penetration is strong, can infiltrate bottom SMD device (surface mount device and plug-in unit device).10. the fixed surface chip, prevent particle contamination.11. can remove and repair.12. can automatically apply in enormous quantities, reduce costs.13. fill the ceramic surface pore.14. prevent the material surface filiform corrosion.15. elimination corona discharge.16. optical transmittance high (as thin as a wafer and transparent Parylene coating adopts very thick silicone rubber coating optical transmittance to be greatly improved with respect to lamp plate).
The above is described embodiment of the present utility model by reference to the accompanying drawings; but the utility model is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment is only schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not breaking away from the scope situation that the utility model aim and claim protect, also can make a lot of forms, within these all belong to protection of the present utility model.
Claims (9)
1. Waterproof LED lamp plate, comprise printed circuit board (PCB) (1) and LED lamp (2), described LED lamp (2) is electrically connected with described printed circuit board (PCB) (1) and described LED lamp (2) reclines is fixed on described printed circuit board (PCB) (1), it is characterized in that, be coated with the Parylene coating (3) for waterproof on described printed circuit board (PCB) (1).
2. Waterproof LED lamp plate according to claim 1, is characterized in that, described Parylene coating (3) is coated on the whole body of described printed circuit board (PCB) (1).
3. Waterproof LED lamp plate according to claim 2, is characterized in that, the thickness of described Parylene coating (3) is between the 0.1-100 micron.
4. Waterproof LED lamp plate according to claim 3, it is characterized in that, the two ends of described printed circuit board (PCB) (1) also are installed with the water joint line, be used for described water-proof LED lamp (a 2) plate is connected to external control circuit and power supply, perhaps be used for a plurality of described water-proof LED lamp (2) plates of stating are connected in series.
5. Waterproof LED lamp plate according to claim 1, is characterized in that, described Waterproof LED lamp plate also comprises the electronic devices and components of being located on described printed circuit board (PCB) (1).
6. Waterproof LED lamp plate according to claim 1, is characterized in that, described printed circuit board (PCB) (1) comprises the metal base printed circuit board (PCB).
According to claim 1 to 6 arbitrary described Waterproof LED lamp plate, it is characterized in that, described printed circuit board (PCB) (1) is provided with a plurality of described LED lamps (2).
8. Waterproof LED lamp plate according to claim 7, is characterized in that, a plurality of described LED lamps (2) are positioned on the same face of described printed circuit board (PCB) (1).
9. Waterproof LED lamp plate according to claim 7, is characterized in that, described LED lamp (2) is granular LED lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200230644U CN203023911U (en) | 2013-01-16 | 2013-01-16 | Waterproof LED (Light Emitting Diode) lamp board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200230644U CN203023911U (en) | 2013-01-16 | 2013-01-16 | Waterproof LED (Light Emitting Diode) lamp board |
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| Publication Number | Publication Date |
|---|---|
| CN203023911U true CN203023911U (en) | 2013-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200230644U Expired - Lifetime CN203023911U (en) | 2013-01-16 | 2013-01-16 | Waterproof LED (Light Emitting Diode) lamp board |
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| CN (1) | CN203023911U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105845047A (en) * | 2016-05-31 | 2016-08-10 | 利亚德光电股份有限公司 | Display lamp panel and display screen with same |
| CN106905813A (en) * | 2015-12-22 | 2017-06-30 | 北京奥托米特电子有限公司 | A kind of Parylene protective coating and its preparation method and application |
| CN111947071A (en) * | 2020-08-18 | 2020-11-17 | 宝钢湛江钢铁有限公司 | Backlight source for hot rolling line width gauge |
| WO2023218449A1 (en) * | 2022-05-09 | 2023-11-16 | Elbit Systems Ltd. | Heat spreading coating for electronic assemblies |
-
2013
- 2013-01-16 CN CN2013200230644U patent/CN203023911U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106905813A (en) * | 2015-12-22 | 2017-06-30 | 北京奥托米特电子有限公司 | A kind of Parylene protective coating and its preparation method and application |
| CN105845047A (en) * | 2016-05-31 | 2016-08-10 | 利亚德光电股份有限公司 | Display lamp panel and display screen with same |
| CN111947071A (en) * | 2020-08-18 | 2020-11-17 | 宝钢湛江钢铁有限公司 | Backlight source for hot rolling line width gauge |
| WO2023218449A1 (en) * | 2022-05-09 | 2023-11-16 | Elbit Systems Ltd. | Heat spreading coating for electronic assemblies |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN DART LIGHTING CO., LTD. Free format text: FORMER NAME: SHENZHEN DATE ENGINEERING TECHNOLOGY CO., LTD. |
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| CP03 | Change of name, title or address |
Address after: 518040, Shenzhen, Guangdong, Futian District, Che Kung Temple Tian Tian digital city F58 building, B1 building, third floor, West Patentee after: SHENZHEN DART ILLUMINATION CO.,LTD. Address before: 518040, Shenzhen, Guangdong, Futian District, Che Kung Temple Tian Tian digital city F5.8 building, B1 building, third floor, West Patentee before: SHENZHEN DATE ENGINEERING TECHNOLOGY Co.,Ltd. |
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| CP03 | Change of name, title or address |
Address after: 518040 West, 3rd floor, block B1, building f5.8, Tianji building, Tian'an Digital City, chegongmiao, Futian District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Date Culture Technology Co.,Ltd. Address before: 518040 West, 3rd floor, block B1, building F58, Tianji building, Tian'an Digital City, chegongmiao, Futian District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN DART ILLUMINATION Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130626 |
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| CX01 | Expiry of patent term |