CN103346681B - LED light device and explosion-proof electrical source thereof - Google Patents
LED light device and explosion-proof electrical source thereof Download PDFInfo
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- CN103346681B CN103346681B CN201310233004.XA CN201310233004A CN103346681B CN 103346681 B CN103346681 B CN 103346681B CN 201310233004 A CN201310233004 A CN 201310233004A CN 103346681 B CN103346681 B CN 103346681B
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Abstract
The present invention relates to a kind of LED light device; it includes that the lightning strike protection voltage that explosion-proof electrical source, described explosion-proof electrical source include being sequentially connected with reaches short-circuit protection circuit, electromagnetic compatibility and electromagnetic radiation suppression circuit, high-voltage rectifying filter circuit, high-low pressure isolation module, constant flow module, filter circuit and the constant voltage circuit of 4 kilovolts；Wherein the input of short-circuit protection circuit is electrically connected with mains, and constant voltage circuit has multiple outfan, each outfan output constant voltage 16.5 volts, exports constant current 320 milliampere.The LED light device of the present invention is configured with explosion-proof electrical source, it is ensured that LED lamp bead is operated under stable, safe voltage and electric current, it is to avoid LED lamp bead overheated, and then avoids the explosion of LED lamp bead.This LED light device can be applicable to various inflammable and explosive industry.
Description
Technical field
The present invention relates to power module, particularly, relate to a kind of LED light device and explosion-proof electrical source thereof.
Background technology
LED light device is widely used in each lighting field.But it is poor generally to there is heat dispersion in current LED light device, the easy problem crossing thermal spalling.In some inflammable and explosive industries, such as 0th district of colliery (the big lane of down-hole central substation, working section sub station, hoist house, pump house, prevailing traffic, fully-mechanized mining working, belt conveyer head and put coal point requirement etc.), oil, petrochemical industry (region: have the indoor equipment regions such as petrochemical equipment region, pump house, maintenance repair and emergent class illumination etc.), gas station etc., 1st district, 2 district's explosion hazard areas, any trickle spark all may cause burning or blast.
Summary of the invention
It is an object of the invention to provide a kind of safe LED light device and explosion-proof electrical source thereof.
A kind of LED light device; it includes that the lightning strike protection voltage that explosion-proof electrical source, described explosion-proof electrical source include being sequentially connected with reaches short-circuit protection circuit, electromagnetic compatibility and electromagnetic radiation suppression circuit, high-voltage rectifying filter circuit, high-low pressure isolation module, constant flow module, filter circuit and the constant voltage circuit of 4 kilovolts；Wherein the input of short-circuit protection circuit is electrically connected with mains, and constant voltage circuit has multiple outfan, each outfan output constant voltage 16.5 volts, exports constant current 320 milliampere.
Preferably, each outfan connects one group of LED light source module, and often group LED light source module includes the LED lamp bead that at least 20 power are 20 watts, and wherein LED lamp bead is connected to described outfan after forming four groups of parallel branches.
Preferably, the power line of described mains electricity is connected with short-circuit protection circuit by explosion-proof pipeline；The wall thickness of described explosion-proof pipeline is at least 2.8 millimeters.
Preferably, described outfan uses 8 core electric wires, is that respectively four groups of road parallel branch is powered with every two heart yearns.
Preferably, described short-circuit protection circuit, electromagnetic compatibility and electromagnetic radiation suppression circuit, high-voltage rectifying filter circuit, high-low pressure isolation module, constant flow module, filter circuit and constant voltage circuit are fixed on a circuit board, and described circuit board processes through sealing.
Present invention also offers a kind of explosion-proof electrical source, it includes that the lightning strike protection voltage being sequentially connected with reaches short-circuit protection circuit, electromagnetic compatibility and electromagnetic radiation suppression circuit, high-voltage rectifying filter circuit, high-low pressure isolation module, constant flow module, filter circuit and the constant voltage circuit of 4 kilovolts；Wherein the input of short-circuit protection circuit is electrically connected with mains, and constant voltage circuit has multiple outfan, and each outfan is output as constant voltage 16.5 volts, exports constant current 320 milliampere.
Preferably, the power line of described mains electricity is connected with short-circuit protection circuit by explosion-proof pipeline；The wall thickness of described explosion-proof pipeline is at least 2.8 millimeters.
Preferably, described outfan uses 8 core electric wires, is that a road is as load supplying with every two heart yearns.
Preferably, described short-circuit protection circuit, electromagnetic compatibility and electromagnetic radiation suppression circuit, high-voltage rectifying filter circuit, high-low pressure isolation module, constant flow module, filter circuit and constant voltage circuit are fixed on a circuit board, and described circuit board processes through sealing.
The LED light device of the present invention is configured with explosion-proof electrical source, it is ensured that LED lamp bead is operated under stable, safe voltage and electric current, it is to avoid LED lamp bead overheated, and then avoids the explosion of LED lamp bead.This LED light device can be applicable to various inflammable and explosive industry.
Accompanying drawing explanation
Fig. 1 is the circuit structure schematic diagram of LED light device of the present invention.
Detailed description of the invention
Below in conjunction with specific embodiment and accompanying drawing, semiconductor lighting module of the present invention is described in further detail.
Referring to Fig. 1, LED light device mainly includes explosion-proof electrical source and many groups of (in the present embodiment being four groups) the LED light source modules being connected with explosion-proof electrical source.Wherein explosion-proof electrical source includes short-circuit protection circuit, electromagnetic compatibility and electromagnetic radiation suppression circuit, high-voltage rectifying filter circuit, high-low pressure isolation module, constant flow module, filter circuit and the constant voltage circuit being sequentially connected with.For realizing water proof and dust proof; short-circuit protection circuit, electromagnetic compatibility and electromagnetic radiation suppression circuit, high-voltage rectifying filter circuit, high-low pressure isolation module, constant flow module, filter circuit and constant voltage circuit are fixed on a circuit board; circuit board and electronic component thereon process through sealing; it is placed in the aluminium extruded shell of water proof and dust proof; and power panel is by ground wire and circuit function ground connection, it is ensured that safety.In the present embodiment, the electronic component of whole power panel realizes sealing process by filling epoxy resin E44.
Wherein the input of short-circuit protection circuit is electrically connected with mains, and its lightning strike protection voltage reaches 4 kilovolts.Preferably, the power line of mains electricity is connected with short-circuit protection circuit by explosion-proof pipeline, and the wall thickness of explosion-proof pipeline is at least 2.8 millimeters, it is preferred to use specification is the pipeline of DN20.220V alternating current circuit of power factor correction (PFC) in high-voltage rectifying filter circuit is boosted to more than 380V, to improve power factor and the efficiency of whole power supply by high-voltage rectifying filter circuit.
Constant voltage circuit has multiple (in the present embodiment being four) outfan, each outfan output constant voltage 16.5 volts, exports constant current 320 milliampere.
Each outfan connects one group of LED light source module, and often group LED light source module includes the LED lamp bead that at least 20 power are 20 watts.These at least 20 LED lamp bead are connected to the outfan of constant voltage circuit after forming four groups of parallel branches.Preferably, outfan uses 48 core electric wires, is that respectively four groups of road parallel branch is powered with every two heart yearns.It should be understood that according to demand, constant voltage circuit can have more than four or the outfan of less than four, and each outfan can be that one group of LED light source module is powered.
The LED light device of the present invention, by ac high-voltage is converted into the output of DC constant voltage, constant current, can prevent LED lamp bead stroboscopic；Can be applicable to 0th district, 1st district, the explosion hazard areas in 2nd district such as colliery (the big lane of down-hole central substation, working section sub station, hoist house, pump house, prevailing traffic, fully-mechanized mining working, belt conveyer head and put coal point requirement etc.), oil, petrochemical industry (region: have the indoor equipment regions such as petrochemical equipment region, pump house, maintenance repair and emergent class illumination etc.), gas station.
The transformator that high-low pressure isolation module is homemade 2+4PIN of the present invention, copper cash insulation is three layers and protects above, and inputs and the high pressure resistant 2.5kV of outfan, for primary voltage pressure limiting.High-low pressure isolation module makes the high pressure (more than 380V) of input and the isolation of low pressure (below 24V) safety.(primary current limliting is: the constant current IC in current-limiting resistance, constant flow module to design two grades of current limiting elements on circuit, secondary current limliting is: optocoupler, current-limiting resistance, PNP type triode), redesigning two grades of voltage-limiting element is Transient Suppression Diode pressure limiting (maximum limit 18V).And it being provided with 16 pieces of modularity controls and output, every module contains high-low pressure isolation module, constant flow module (two level current limiting), filter circuit and constant voltage circuit (two grades of pressure limitings).The electronic component of whole power panel is filled in epoxy resin E44 and aluminium extruded shell.
The spark energy of the explosion-proof electrical source of the present invention controls as being not enough to ignite coal mine gas gas, propane gas, ethylene gas, hydrogen gas.And meet country's explosion-proof criteria " equipment that GB3836.4-2010 is protected by essential safe type " i " " inner 5.3 articles, 5.5 articles, 5.6 articles, the 6th chapter, the 7.1st article, the 7.2nd article, the 7.3rd article, the 7.5th article, the 8th chapter, the 9th chapter, by the experimental check of the 10th chapter.And meet the b bar content of country's explosion-proof criteria " equipment that GB3836.4-2010 is protected by essential safe type " i " " inner A.1 bar of appendix A, A.2 bar, A.3 bar and scheme A.3II class condenser network, Table A .1 voltage corresponding with facility level allow short circuit current.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that, for the person of ordinary skill of the art, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (5)
1. a LED light device; it is characterized in that; it includes that the lightning strike protection voltage that explosion-proof electrical source, described explosion-proof electrical source include being sequentially connected with reaches short-circuit protection circuit, electromagnetic compatibility and electromagnetic radiation suppression circuit, high-voltage rectifying filter circuit, high-low pressure isolation module, constant flow module, filter circuit and the constant voltage circuit of 4 kilovolts；Wherein the input of short-circuit protection circuit is electrically connected with mains, and constant voltage circuit has multiple outfan, each outfan output constant voltage 16.5 volts, exports constant current 320 milliampere；220V alternating current circuit of power factor correction in high-voltage rectifying filter circuit is boosted to more than 380V by described high-voltage rectifying filter circuit；The input of described high-low pressure isolation module and the high pressure resistant 2.5kV of outfan, for primary voltage pressure limiting.
LED light device the most according to claim 1, it is characterized in that, each outfan connects one group of LED light source module, and often group LED light source module includes the LED lamp bead that at least 20 power are 20 watts, and wherein LED lamp bead is connected to described outfan after forming four groups of parallel branches.
LED light device the most according to claim 1, it is characterised in that the power line of described mains electricity is connected with short-circuit protection circuit by explosion-proof pipeline；The wall thickness of described explosion-proof pipeline is at least 2.8 millimeters.
LED light device the most according to claim 2, it is characterised in that described outfan uses 8 core electric wires, is that respectively four groups of road parallel branch is powered with every two heart yearns.
LED light device the most according to claim 1; it is characterized in that; described short-circuit protection circuit, electromagnetic compatibility and electromagnetic radiation suppression circuit, high-voltage rectifying filter circuit, high-low pressure isolation module, constant flow module, filter circuit and constant voltage circuit are fixed on a circuit board, and described circuit board processes through sealing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310233004.XA CN103346681B (en) | 2013-06-13 | 2013-06-13 | LED light device and explosion-proof electrical source thereof |
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| CN201310233004.XA CN103346681B (en) | 2013-06-13 | 2013-06-13 | LED light device and explosion-proof electrical source thereof |
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| CN103346681B true CN103346681B (en) | 2016-08-03 |
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| CN120050816A (en) * | 2025-04-25 | 2025-05-27 | 杭州径上科技有限公司 | High-stability irradiation-resistant LED lamp constant current source driving circuit |
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| CN201377769Y (en) * | 2008-12-23 | 2010-01-06 | 李孝杰 | High-power high-voltage input explosion-proof intrinsically-safe LED illuminating lamp |
| US8766546B2 (en) * | 2011-06-06 | 2014-07-01 | Tdk-Lambda Corporation | LED drive device and LED illuminating device |
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| CN2904552Y (en) * | 2006-03-31 | 2007-05-23 | 淮南市启迪电子有限公司 | Explosion isolation safety LED coalmine illuminating lamp |
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| CN103346681A (en) | 2013-10-09 |
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Address after: Chongqing Nan'an District South Road No. 76 (Chongqing international financial center) 22 floor Applicant after: NVC (China) Co., Ltd. Applicant after: Huizhou Leishi Optoelectronic Technology Co., Ltd. Address before: Chongqing Nan'an District South Road No. 76 (Chongqing international financial center) 22 floor Applicant before: Chongqing NVC Industries Co., Ltd. Applicant before: Huizhou Leishi Optoelectronic Technology Co., Ltd. |
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Effective date of registration: 20170124 Address after: 516000 Guangdong city of Huizhou province Ru Town East Village Bridge (NVC Industrial Park) Patentee after: Huizhou Leishi Optoelectronic Technology Co., Ltd. Address before: Chongqing Nan'an District South Road No. 76 (Chongqing international financial center) 22 floor Patentee before: NVC (China) Co., Ltd. Patentee before: Huizhou Leishi Optoelectronic Technology Co., Ltd. |