CN100494769C - LED railway signal lamp light source - Google Patents
LED railway signal lamp light source Download PDFInfo
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- CN100494769C CN100494769C CNB2007101852174A CN200710185217A CN100494769C CN 100494769 C CN100494769 C CN 100494769C CN B2007101852174 A CNB2007101852174 A CN B2007101852174A CN 200710185217 A CN200710185217 A CN 200710185217A CN 100494769 C CN100494769 C CN 100494769C
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Abstract
The LED railway signal lamp light source features its lightning preventing circuit, main filament fusing simulating unit, artificial capacitive load, main and auxiliary AC-DC power sources, power source switching circuit, LED lamp circuit, detection circuit and control circuit. When the power is on, the main power source powers the LED lamps and the auxiliary power source is in warm back-up state. The LED railway signal lamp light source has automatic defect treating function, and thus high reliability.
Description
Technical field
The present invention relates to railway signal lamp light source, specifically is a kind of with the existing incandescent lamp railway signal lamp light source of led light source replacement.
Background technology
At present, railway signal lamp light source all also is to use incandescent light source, existing incandescent lamp railway signal lamp light source all is that the AC low-tension power supply is installed on the semaphore by socket, and the filament slow release relay that has filament to switch (current drives relay) and warning circuit, warning device in power supply common port, main filament power end, auxiliary filament power end, the external point lamp driver at this light source and a plurality of current drives are arranged is being arranged on the socket.The incandescent lamp railway signal lamp light source is an incandescent lamp owing to what use, exists incandescent lamp is the same in the other field deficiency and shortcoming, and as the energy consumption height, service time is short etc., as shown in Figure 1.
Along with LED cold light source technology becomes better and approaching perfection day by day, many researchs and application have been done by relevant R﹠D institution and producer aspect railway signal lamp light source, and along with the requirement of speed increase in vehicle to light source, LED signal lamp light source has become the new technology in railway signal field.
Led light source has long, advantages such as brightness is high, good directionality power saving of life-span because of its luminescence mechanism, finally will replace existing light source to become the main stream light sources of signal lamp in the railway signal field.All carrying out the application of this respect product research popularization and engineering based on these many units, also carried out some creative researches and declared many patents such as a lot of scientific and technical personnel, as China Patent No.: a kind of LED multicore sheet railway signal lamp light source of 200520035118.4, a plane at metal heat sink 4 tightens a printed circuit board 5, preset two groups of led chips 6 in the printed board, independently control circuit I and II are controlled this two core assemblies sheet by two respectively, the input of each control circuit links to each other with the AC power that the railway signal lamp system is provided respectively, and promptly the two groups of filament in the railway signal lamp bulb is replaced by the light source that the led chip group of being controlled by a control circuit and control circuit is constituted respectively.
And for example China Patent No. 200520045062.0 the utility model relate to the switchable spot light railway signal lamp of a kind of major and minor light source, it is characterized in that in lamp socket, being provided with substrate, a plurality of luminescence chips are installed on the substrate, also be provided with on the lamp socket and cover on the outer collector lens of substrate, control line is connected with on-chip luminescence chip.
Above-mentioned patent and product have is applied to railway line, among the popularization that has, from situation about using, we find that these products all can not completely reflect physical characteristic, electric property and the reliability of original signal lamp source at aspects such as socket connection, size of current, the designs of major-minor filament, all can not replace primary source on the level cheaply.Though (, the title that has can replace primary source, such as Chongqing Wandao Photoelectric Science ﹠ Technology Co., Ltd., and China Patent No.: 200520035118.4 described products, thing is not in fact accomplished).
The way of all products is to compare with primary source from the indicating effect of a plurality of led light sources of parallel connection, improve reliability with parallel connection, distribution source circuit forms light source in addition, the light source of Xing Chenging can not cooperate original signal machine and some lamp driver in physical property aspect electric property like this. alarm unit, in order to make light source cooperate the initial point lamp driver, need the transformer unit of supporting LED special use, filament to switch single, first alarm unit.What have also needs special-purpose filament slow release relay, so their method is said on the cost very high from economic aspect; Say that from the reliability aspect problem is very big, because it is amplified to the fault zone all electronic devices and components of its product from former filament, make the effect of reliability that parallel connection LED increases be difficult to bring into play, and do not meet the supreme principle of " fault-safety principle " railway; From engineering use aspect, they make this simple thing that changes the bulb become engineering, and the need that have are changed whole semaphore, even change control room circuit.
In a word, present LED railway signal lamp light source, there are the following problems:
1, only can be used for the station track transformation or the ew line construction can not be used for regular maintenance, the cost height, ordinary circumstance is wanted several thousand yuan even unit up to ten thousand;
2, use the back maintenance cost high maintenance time long, can not satisfy railway " fault-safety principle " principle, directly influence train safe and drive a vehicle on schedule;
3, the damage of any one element all is equivalent to molten breaking of major-minor filament while in the electronic circuit, and reliability is not high, and the performance of advantages such as the life-span of led light source is long, brightness is high, good directionality, power saving is not come out.
Summary of the invention
The present invention is based on the defective and the deficiency that exist in the above-mentioned existing LED railway signal lamp light source technology, a kind of good reliability is provided, satisfy fully that railway signal " fault-safety principle " requires, incandescent source various characteristics (physical property electric property) can be simulated again fully, the LED railway signal lamp light source of primary source can be provided for simple replacement of as bulb.
Technical scheme of the present invention for achieving the above object is:
A kind of LED railway signal lamp light source, comprise lamp housing 1, circuit board 2, by LED lamp district 3, lamp base 4 that white luminous pipe is formed, it is characterized in that: also have major and minor AC-DC DC-stabilized circuit 5, and capacitive fictitious load 6, lightning prevention circuit, main filament fusing analog circuit, power supply switch circuit, the district's damage of LED lamp, overvoltage, under-voltage testing circuit and control circuit on the described circuit board; The lamp housing bottom is a lamp base, and has three electrodes; Described circuit board is contained in the back of lamp housing inside; Described LED lamp district is contained in the front in the shell; Main AC-DC DC-stabilized circuit and secondary AC-DC DC-stabilized circuit on circuit board are positioned at the circuit board both sides, and the power device of major and minor AC-DC DC-stabilized circuit is separately fixed on the interior two sides of lamp housing.AC power common port by three electrode inputs of lamp base, the main filament power end, the auxiliary filament power end connects main filament fusing analog circuit through lightning prevention circuit, the interchange output-parallel capacitive fictitious load of main filament fusing analog circuit, and insert main, secondary AC-DC DC-stabilized circuit, main, the output of secondary AC-DC DC-stabilized circuit inserts LED lamp district through power supply switch circuit, described LED lamp district damages, overvoltage, under-voltage testing circuit and control circuit connect lamp district, power supply switch circuit respectively on circuit board, main, secondary AC-DC DC-stabilized circuit and main filament fusing analog circuit.Capacitive fictitious load on the described circuit board is to be connected and constituted by two electrochemical capacitor negative pole anticathodes.
A kind of LED railway signal lamp light source of the present invention compared with prior art has outstanding substantive distinguishing features and marked improvement to be:
1, simulates electric property, physical property (physical connection structure) and the reliability in former railway signal lamp white light source fully by LED and corresponding electronics, control circuit and contour structures, do not change that primary source is lit a lamp and the situation of control circuit and semaphore under, replace former white light source fully with the method that changes the bulb, importantly solved the problem of long influence driving of LEDization back replacing time.
2, simulated fully the major-minor filament of existing incandescent light source electrical characteristic (electric current. voltage and operating chacteristics), cooperated former filament to switch warning circuit,, solved the problem that led light source can not cooperate current drive-type relay in initial point lamp driver and the facility, under the situation that does not change existing lamp white light source circuit and facility, low cost just can be with signal optical source LEDization;
3, according to the principles and requirements of railway signal " fault-safety principle ", adopt dual power supply and detect control circuit to make LED life-span reliability height long and parallel connection LED fully reach performance, really improved the reliability of light source.
Product cost of the present invention is low. the reliability height. and maintenance time is short, be not only applicable to the construction of new website line, old station track transformation and suitable normal maintenance maintenance have great significance at the universal of railway signal field for the new light sources that quickens the good power saving of long brightness high directivity of this life-span of LED.
Description of drawings
Fig. 1 is existing incandescent lamp railway signal lamp light source electrical principle block diagram;
Fig. 2 is the structural front view of a kind of LED railway signal lamp light source of the present invention;
Fig. 3 is the structure side view of a kind of LED railway signal lamp light source of the present invention;
Fig. 4 is the electrical principle block diagram of a kind of LED railway signal lamp light source of the present invention.
The specific embodiment
Be elaborated below in conjunction with accompanying drawing:
Fig. 2 and shown in Figure 3 is the profile and the structural representation of a kind of LED railway signal lamp light source of the present invention.The LED railway signal lamp light source is by lamp housing 1, circuit board 2, by LED lamp district 3, lamp base (socket) 4, major and minor (two) AC-DC DC-stabilized circuit 5 and capacitive fictitious load 6 etc. that 3-8 the white luminous pipe of LED formed, and circuit board is contained in the back of lamp housing inside; Described LED lamp district is contained in the front in the shell; Main AC-DC DC-stabilized circuit and secondary AC-DC DC-stabilized circuit on circuit board are positioned at the circuit board both sides, and the power device of major and minor AC-DC DC-stabilized circuit is separately fixed on the interior two sides of lamp housing, capacitive fictitious load on the circuit board is contained in the top of circuit board, the capacitive fictitious load is to be connected and constituted by two electrochemical capacitor negative pole anticathodes, lamp base (socket) is arranged at the lamp housing bottom, and has three electrodes (be analogous to primary source and connect common port, main filament, auxiliary filament equally respectively).
Shown in Figure 4, the electrical principle block diagram of a kind of LED railway signal lamp light source of the present invention.Described circuit on lamp housing inside rear circuit board contains circuit, LED lamp district and the district's damage of LED lamp, overvoltage, under-voltage testing circuit and control circuits such as lightning prevention circuit, capacitive fictitious load, major and minor AC-DC DC-stabilized circuit, main filament fusing analog circuit, power supply switching; The filament switching of existing incandescent lamp railway signal lamp light source and the AC power common port in the warning circuit, the main filament power end, auxiliary filament power end (on the semaphore lamp socket) is gone up corresponding electrode with the lamp base (socket) of LED railway signal lamp light source and is joined, common port by lamp base (socket) input, the main filament power end, the auxiliary filament power end connects main filament fusing analog circuit through lightning prevention circuit, capacitive fictitious load in parallel on the output AC power source of main filament fusing analog circuit, and insert main, secondary AC-DC DC-stabilized circuit, main, the output of secondary AC-DC DC-stabilized circuit inserts LED lamp district through power supply switch circuit, described LED lamp district damages, overvoltage, under-voltage testing circuit and control circuit connect LED lamp district, power supply switch circuit respectively, main, secondary AC-DC DC-stabilized circuit and main filament fusing analog circuit.Its major and minor AC-DC DC-stabilized circuit, power supply switch circuit, main filament fusing analog circuit, the district's damage of LED lamp, overvoltage, under-voltage detection and control circuit and power supply switching or the like circuit all are prior aries, be that the power circuit based on integrated circuit modules, relay switching circuit and overvoltage, the under-voltage that generally adopts at present detects control circuit, these all are that present technique field those of ordinary skill is familiar with, for this reason, be not described in detail.The present invention uses these tandem circuits on the capacitive fictitious load basis that constitutes being connected by two electrochemical capacitor negative pole anticathodes, constitute a kind of new LED railway signal lamp light source with a kind of specific structure, simulated fully the major-minor filament of existing incandescent light source electrical characteristic (electric current. voltage and operating chacteristics), make the control circuit of lighting a lamp (filament switching, warning circuit, warning device and a plurality of current mode slow release relay) of existing incandescent lamp railway signal lamp light source obtain good utilization.Thereby can not change existing railway signal reason facility.
The operation principle of a kind of LED railway signal lamp light source of the present invention:
When power connection each several part circuit working, main filament fusing analog circuit is connected outside main filament power end, connects major and minor AC-DC DC-stabilized circuit through the capacitive fictitious load, two power supplys are through power supply switch circuit, and are powered to the lamp district by main AC-DC DC-stabilized circuit.When main AC-DC DC-stabilized circuit was powered to the lamp district, secondary AC-DC DC-stabilized circuit was in the Hot Spare state.For guaranteeing LED railway signal lamp light source operate as normal, when the LED railway signal lamp light source situation that breaks down then can take control measure as follows automatically:
1, when the LED luminous tube damage in LED lamp district reaches 30%, control circuit in the circuit of LED railway signal lamp light source damages testing circuit by LED lamp district, detect lamp district electric current and find that luminous tube damages fault, and send the main filament blown state to outside filament switching and warning circuit by main filament fusing analog circuit.
2, when faults such as overvoltage, under-voltage, overcurrent have appearred in main AC-DC DC-stabilized circuit, control circuit detects its voltage status by overvoltage, under-voltage testing circuit and finds fault, and sends the main filament blown state by main filament fusing analog circuit to outside filament switching and warning circuit; Simultaneously, disconnect main AC-DC DC-stabilized circuit by power supply switch circuit, LED lamp district connects secondary AC-DC DC-stabilized circuit; Make LED lamp district can continue maintenance work;
3, when faults such as overvoltage, under-voltage, overcurrent have appearred in secondary AC-DC DC-stabilized circuit, control circuit detects its voltage status by overvoltage, under-voltage testing circuit and finds the fault inspection, and sends the main filament blown state by main filament fusing analog circuit to outside filament switching and warning circuit;
4, when control circuit generation NOT logic fault, it will guarantee in normal power supply that also control main filament fusing analog circuit sends the main filament blown state to outside filament switching and warning circuit;
5, when main filament fusing analog circuit and power supply switch circuit generation electric fault, relay tip in them is swung to normally closed contact, disconnect the main filament circuit, connect the auxiliary filament circuit, send main filament blown state (principle that meets railway signal " fault-safety principle " under the 4th, the 5th duty wherein fully) to outside filament switching and warning circuit.
It is above-mentioned that--main filament fusing analog circuit switches and warning circuit sends both disconnecting external main filament circuit of main filament blown state----to outside filament, connect outside auxiliary filament circuit, at this moment outside filament switches and warning circuit can be taked actions such as warning as former incandescent light source main filament fusing.
At the above-mentioned circuit course of normal operation or the disconnection main filament circuit that breaks down, connect in the course of work of auxiliary filament circuit, owing to adopted the capacitive fictitious load that is parallel to alternating current circuit, this makes electric current be increased to 2-2.3A (electric currents of 25 watts of power correspondences of former incandescent light source) under the situation of no power consumption, thereby can wholely formerly light a lamp with the first wife, warning, control circuit and all current drives relays be complementary.
Claims (2)
1, a kind of LED railway signal lamp light source, the LED lamp district (3), the lamp base (4) that comprise lamp housing (1), circuit board (2), form by white luminous pipe, it is characterized in that: also have major and minor AC-DC DC-stabilized circuit (5) on the described circuit board (2), and capacitive fictitious load (6), lightning prevention circuit, main filament fusing analog circuit, power supply switch circuit, LED lamp district damages, overvoltage, under-voltage testing circuit and control circuit; The lamp housing bottom is a lamp base, and has three electrodes; Described circuit board is contained in the back of lamp housing inside; Described LED lamp district is contained in the front in the shell; Main AC-DC DC-stabilized circuit and secondary AC-DC DC-stabilized circuit on circuit board are positioned at the circuit board both sides, and the power device of major and minor AC-DC DC-stabilized circuit is separately fixed on the interior two sides of lamp housing; AC power common port by three electrode inputs of lamp base, the main filament power end, the auxiliary filament power end connects main filament fusing analog circuit through lightning prevention circuit, the interchange output-parallel capacitive fictitious load of main filament fusing analog circuit, and insert main, secondary AC-DC DC-stabilized circuit, main, the output of secondary AC-DC DC-stabilized circuit inserts LED lamp district through power supply switch circuit, described LED lamp district damages, overvoltage, under-voltage testing circuit and control circuit connect the lamp district respectively on circuit board, power supply switch circuit, main, secondary AC-DC DC-stabilized circuit and main filament fusing analog circuit.
2, a kind of LED railway signal lamp light source according to claim 1 is characterized in that: the capacitive fictitious load on the described circuit board is to be connected and constituted by two electrochemical capacitor negative pole anticathodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101852174A CN100494769C (en) | 2007-11-09 | 2007-11-09 | LED railway signal lamp light source |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101852174A CN100494769C (en) | 2007-11-09 | 2007-11-09 | LED railway signal lamp light source |
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| CN101149134A CN101149134A (en) | 2008-03-26 |
| CN100494769C true CN100494769C (en) | 2009-06-03 |
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| CNB2007101852174A Active CN100494769C (en) | 2007-11-09 | 2007-11-09 | LED railway signal lamp light source |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917791B (en) * | 2010-07-09 | 2014-07-09 | 北京交通大学 | LED railway signal lamp |
| CN102762004B (en) * | 2011-04-28 | 2014-07-09 | 东莞勤上光电股份有限公司 | LED street lamp and control device thereof |
| CN105065996A (en) * | 2015-08-13 | 2015-11-18 | 南宁铁路局科学技术研究所 | Railway LED energy-saving signal lamp |
| CN106439707B (en) * | 2016-12-03 | 2021-04-06 | 广东奥特体能科技有限公司 | Multifunctional LED lamp |
| CN107514550B (en) * | 2017-10-17 | 2024-05-28 | 孙宗福 | LED railway signal point light source device |
| CA3111769A1 (en) | 2018-09-05 | 2020-04-30 | Protran Technology, Llc | Lantern and multi-functional led light for railways |
| CN110213852B (en) * | 2019-04-16 | 2022-02-08 | 浙江友诚铁路设备科技有限公司 | Cold wire inspection circuit of internal auxiliary filament LED light-emitting chip and control circuit in railway point type double-filament LED signal lighting device |
| CN111629491B (en) * | 2020-03-23 | 2022-10-21 | 北京全路通信信号研究设计院集团有限公司 | Safety type LED intelligent signal machine control system and method |
| CN111639370B (en) * | 2020-06-11 | 2021-08-03 | 威海银创微电子技术有限公司 | Nonvolatile SRAM data encryption device |
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Address after: No. 92, Hollywood Road, Xiaodian District, Shanxi City, Taiyuan Province, China: 030006 Co-patentee after: Chian Railway Electrification Bureau (Group) 2nd Engineering Corporation Patentee after: Shanxi University Address before: No. 92, Hollywood Road, Xiaodian District, Shanxi, Taiyuan Patentee before: Shanxi Univeristy |