CN102330935B - Point type LED (Light Emitting Diode) light source lamp special for railway signal and point lamp light source circuit - Google Patents
Point type LED (Light Emitting Diode) light source lamp special for railway signal and point lamp light source circuit Download PDFInfo
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Abstract
The invention relates to a point type LED (Light Emitting Diode) light source lamp special for a railway signal and a point lamp light source circuit, and discloses a novel LED signal mechanism special for the railway signal, which has the characteristics of environmental friendliness, energy conservation and long life. The LED signal mechanism consists of the point type LED light source lamp and the point lamp light source circuit, wherein the point type LED light source lamp comprises a radiator, a lamp cap inner sleeve, a lamp housing, a collecting lens, a luminous body and a pre-focus plate lamp cap; the luminous body consists of a main lamp and a secondary lamp; the adopted radiator is a finned radiator; a heat-conducting aluminum substrate and a heat-conducting aluminum substrate mounting hole are formed on one side of the radiator; the heat-conducting aluminum substrate is arranged in the heat-conducting aluminum substrate mounting hole; the main lamp and the secondary lamp are arranged on the heat-conducting aluminum substrate; the lamp housing and the collecting lens are arranged outside the heat-conducting aluminum substrate; the lamp cap inner sleeve is arranged on the lower part of the radiator; the pre-focus plate lamp cap is fixedly arranged outside the lamp cap inner sleeve; and the point lamp light source circuit comprises a power part, a signal sampling part, a signal processing, analyzing and control part and an LED driving part.
Description
Technical field
What the present invention relates to is a kind of railway signal special-purpose point type LED light source lamp and the circuit of light sources of lighting a lamp, and is a kind of have environmental protection, special-purpose LED signaling gear of novel railway signals energy-conservation, the long-life characteristics.
Background technology
railway color light signal mechanism approximately has more than 80 ten thousand at present, more than 240 ten thousand lamp positions, what adopt is traditional interchange 250W/12V incandescent lamp bulb, its life-span is 1000 hours, not only need to consume a large amount of materials and the energy, main is poor reliability, often occur to turn off the light because of filament break and cause parking, particularly can not satisfy safe and reliable requirement in the current high ferro epoch, the application of LED light source is for years, before power-type LED does not come out, the multitube high-luminance light disc type LED that mostly adopts, railway technology requires different from highway, many problems have appearred in application, and to transform existing signaling gear.
Summary of the invention
The present invention seeks to provides a kind of railway signal special-purpose point type LED light source lamp and the circuit of light sources of lighting a lamp for above-mentioned weak point, a kind of have environmental protection, special-purpose LED signaling gear of novel railway signals energy-conservation, the long-life characteristics, security reliability to present solution railway signaling mechanism light source, the social desirability of energy-saving and emission-reduction is very significant, application of the present invention will be for improving the equipment of railway equipment, traffic safety, reduce the labour, have wide application prospect and social benefit, and bring higher safety index to traffic safety.Point type LED(two-way single tube) light source adopts multi-chip power type light emitting diode combined as light emitting source.Illuminator forms separate luminous major and minor light-source structure by the luminous tube of two multi-chip combinations.With existing railway signaling mechanism lamp prefocusing plate group compatibility, has " bulb plug-in type " structure of error protection function.
Railway signal special-purpose point type LED light source lamp and the circuit of light sources of lighting a lamp are to take following technical scheme to realize:
Railway signal special-purpose point type LED light source lamp and the circuit of light sources of lighting a lamp are comprised of point type LED light source lamp and the circuit of light sources of lighting a lamp.
Point type LED light source lamp comprises radiator, lamp holder inner sleeve, lampshade, collector lens, illuminator and prefocus plate lamp holder.Illuminator is comprised of king light, secondary lamp, and king light and secondary lamp are comprised of the high-capacity LED luminous tube of a plurality of chip portfolios.Described king light and secondary lamp are separate illuminating source.
Described radiator adopts gilled radiator, be provided with heat conduction aluminum substrate, heat conduction aluminum substrate installing hole in radiator one side, the heat conduction aluminum substrate is arranged in heat conduction aluminum substrate installing hole, king light and secondary lamp are arranged on the heat conduction aluminum substrate, lampshade and collector lens are equipped with in the heat conduction aluminum substrate outside, be sleeved on the radiator bottom in lamp holder, the prefocus plate lamp holder is fixed on the lamp holder outside of inner cover, be provided with the lamp holder locating slot on prefocus plate lamp holder top, be used for the point type LED light source and install and be positioned at prefocus plate (lamp socket).
Described king light adopts respectively the power supply limit of high-temperature insulation wire bottom the prefocus plate lamp holder to be connected with secondary lamp positive pole, and king light adopts respectively the high-temperature insulation wire to be connected with the lamp holder inner sleeve with secondary lamp negative pole.
The circuit of light sources of lighting a lamp comprises power unit, signal sampling part, signal processing, analysis and control part, LED drive part.
Power unit comprises the first rectifying voltage regulator circuit and the second rectifying voltage regulator circuit; The first rectifying voltage regulator circuit is made of transformer T1, rectifier bridge D1, voltage-regulation voltage-stabilization circuit U 5, capacitor C 3, capacitor C 5, resistance R 25 and resistance R 27, for amplifier U1, amplifier U3 and constant-current power supply circuit U6, constant-current power supply circuit U9 provide power supply.Described voltage-regulation voltage-stabilization circuit U 5 adopts 317 voltage-regulation voltage-stabilization integrated chips etc.Described rectifier bridge D1 adopts 5507 rectifier bridges.
The second rectifying voltage regulator circuit is made of transformer T2, rectifier bridge D2, mu balanced circuit U2, capacitor C 4, capacitor C 6, for microprocessor U7 in control module etc. provides power supply.
Signal sampling partly comprises resistance R 46, amplifier U1, resistance R 1, amplifier U3, consists of respectively the sampling feedback circuit of king light and secondary lamp, is used for control and regulation by the electric current of king light or secondary lamp.Feedback signal FB1, FB2 are connected respectively to the feedback end of constant-current power supply circuit U9, U6.Sampled signal and feedback signal are sent on microprocessor U7 simultaneously.Described amplifier U1, amplifier U3 adopt 358 operational amplifier integrated chips.
The LED drive part comprises king light D3, secondary lamp D4, adapter J2, king light constant-current power supply circuit U9, inductor L4, diode D13, capacitor C 8, capacitor C 9 and secondary lamp constant-current power supply circuit U6, inductor L1, diode D5, capacitor C 1, capacitor C 2, consist of current stabilization circuit, the LED that is respectively king light D3 and secondary lamp D4 provides stable operating current.The LED drive part is subjected to the control of microprocessor U7, and control line is M1, M2.Described king light constant-current power supply circuit U9 and secondary lamp constant-current power supply circuit U6 adopt LM2775 constant-current supply integrated chip.
Signal is processed, analysis and control partly comprises microprocessor U7, clock circuit.Clock circuit comprises crystal oscillator Y1, capacitor C 7, capacitor C 13, normal voltage circuit U 4, resistance R 27.Microprocessor U7 is the control core of lighting unit, its picked up signal on sampling resistor R46, sampling resistor R1, the normal voltage circuit U 4, thus judge the duty of major and minor lamp; These signals are connected respectively to PIN1, PIN2, PIN3, PIN4, the PIN6 of U7.The PIN5 of microprocessor U7 obtains voltage signal from the power supply front end, and then determines that can king light, secondary lamp work.Microprocessor U7 controls the duty of constant-current power supply circuit U9, U6 by I/O port M1, M2, thereby controls the unlatching of king light, secondary lamp or close.If king light power light-emitting pipe D3, secondary lamp power light-emitting pipe D4 are short-circuited, open circuit abnormal, microprocessor U7 by I/O mouth PD2 PD3 PD1 ER ER1 ER2 relay and the light emitting diode controlled send alarm, and take adequate measures to carry out king light, secondary lamp work switching in conjunction with port M1/M2, thereby guarantee the normal operation of signal lamp.Microprocessor U7 can also be by the I/O mouth ST1 ST2 accept outer setting.Described normal voltage circuit U 4 adopts 2.5V normal voltage circuit.
Described microprocessor U7 adopts 8515 microprocessors.Described crystal oscillator Y1 adopts the 6M crystal oscillator.
The PA0 of microprocessor U7～PA7 end and PC0～PC7 end is connected on the system bus of unit.
In the first rectifying voltage regulator circuit, transformer T1 is elementary is connected with the alternating current 220V power supply, T1 level of 2,3 pin and the transformer of rectifier bridge D1 is connected, capacitor C 3 is connected with 1,4 pin of rectifier bridge D1,2 pin of voltage-regulation voltage-stabilization circuit U 1 are connected with 1 pin of rectifier bridge D1,1 pin of voltage-regulation voltage-stabilization circuit U 5 is by resistance R 27 ground connection, and 3 of voltage-regulation voltage-stabilization circuit U 5 is connected with 1 pin of voltage-regulation voltage-stabilization circuit U 5 by resistance R 25.Capacitor C 5 one ends are connected with 3 pin of voltage-regulation voltage-stabilization circuit U 5, capacitor C 5 other end ground connection.3 pin of voltage-regulation voltage-stabilization circuit U 5 are connected with constant-current power supply circuit U6, U9, and 3 pin of voltage-regulation voltage-stabilization circuit U 5 are that the supply pin VDD of amplifier U1, amplifier U3 is connected.
In the second rectifying voltage regulator circuit, transformer T2 is elementary to be connected with the alternating current 220V power supply, and 3,4 of rectifier bridge D2 is connected with T2 level of transformer, and capacitor C 6 is connected with 1,2 pin of rectifier bridge D2.1 pin of voltage-regulation voltage-stabilization circuit U 2 is connected with 1 pin of rectifier bridge D2,2 pin ground connection of voltage-regulation voltage- stabilization circuit U 2, and 3 pin of voltage-regulation voltage-stabilization circuit U 2 are by capacitor C 4 ground connection.3 pin of voltage-regulation voltage-stabilization circuit U 2 are connected with 40 pin of microprocessor U7.1 pin of voltage-regulation voltage-stabilization circuit U 2 is connected with 5 pin of microprocessor U7, and U7 provides power supply for microprocessor.
In signal sampling part, resistance R 46 1 ends are connected with inductance L 4, are connected with the forward end of amplifier U1 simultaneously, 2 pin of microprocessor U7 are connected.Resistance R 46 other ends are connected with king light D3 positive pole, the backward end of amplifier U1 and the 1st pin of microprocessor U7, consist of king light sampling feedback circuit, are used for the electric current of control and regulation king light.The output of amplifier U1 is connected with feed back input 4 pin of permanent source current circuit U 9, resistance R 1 one ends are connected with inductance L 1, be connected with the forward end of amplifier U3 simultaneously, the other end of resistance R 1 is connected with secondary lamp D4 positive pole and the 4th pin of microprocessor U7 is connected, consist of the sampling feedback circuit of secondary lamp, be used for controlling to adjust the electric current of secondary lamp.
In the LED drive part, 1 pin of king light constant-current power supply circuit U9 is connected with 3 pin of voltage-regulation voltage-stabilization circuit electricity U5, the control pin 5 of king light constant-current power supply circuit U9 is connected with 14 pin of microprocessor U7,1 pin of king light constant-current power supply circuit U9 is by capacitor C 9 ground connection, and 4 pin of king light constant-current power supply circuit U9 are connected with the output of amplifier U1.2 pin (output) of king light constant-current power supply circuit U9 are connected with diode D13 negative pole, inductor L4, and the other end of inductor L4 is connected with the positive pole of king light D3 by sampling resistor R46.The plus earth of diode D13.1 pin of secondary lamp constant-current power supply circuit U6 is connected with 3 pin of voltage-regulation voltage-stabilization circuit U 5, and 1 pin of U6 is by capacitor C 1 ground connection.The control pin 5 of secondary lamp constant-current circuit U6 is connected with 15 pin of microprocessor U7, and 4 pin of constant-current power supply circuit U6 are connected with the output of amplifier U3.2 pin (output) of voltage-regulation voltage-stabilization circuit U 5 are connected with negative pole, the inductor L1 of diode D5, and the other end of inductor L1 is connected with the positive pole of secondary lamp D4 by sampling resistor R1.The plus earth of diode D5.The negative pole of king light D3, secondary lamp D4 is connected, and by resistance R 20 ground connection.
Signal is processed, the analysis and control part, 18,19 pin of microprocessor U7 are connected with the two ends of the crystal oscillator Y1 of clock circuit, 18 of microprocessor U7 passes through capacitor C 7 ground connection, 19 of microprocessor U7 passes through capacitor C 13 ground connection, 2 pin of normal voltage circuit U 4 are connected with the 6th pin of microprocessor U7,1 pin of normal voltage circuit U 4 is connected with the second rectifying voltage regulator VCC, 3 pin of normal voltage circuit U 4 connect, and 2 pin of normal voltage circuit U 4 are connected with the 2nd commutating voltage power supply VCC by resistance R 27.
Operation principle:
When 1) connecting the 220V power supply, system carries out self check, if normal, the programme-control king light is lighted work, secondary lamp do not work (not working).If undesired, start malfunction routine.
2) when normal operation, constantly detect the king light current sampling signal, and control constant-current source circuit, make by the electric current of king light substantially constant, thereby guarantee stable luminescence.
3) if system detects king light appearance abnormal (bright light, do not open circuit or short circuit) in the course of the work, control program at once cuts off the king light electric current and starts secondary lamp bright light, starts simultaneously the alarm circuit to remind maintenance.At this moment, control program switches to monitoring and detects secondary lamp current signal, and it is constant to keep secondary lamp current, guarantees the normal operation of signal lamp during this period.
4) after king light occurs extremely, if secondary lamp also breaks down, the holding circuit startup work of security system, the alarm circuit is connected, and all circuit enter the safeguard protection state.
Railway signal special-purpose point type LED light source lamp and the circuit of light sources characteristics of lighting a lamp:
1. in not changing existing railway color light signal mechanism on the basis of outer lens and focus-fixing disk lamp holder, illuminator adopts " bulb plug-in type " dot structure, realizes versatility, interchangeability, and on-the-spot the use need not existing signaling gear and lamp circuit are transformed.Overcome the multitube optical-disk type, the poor reliability that LED light source exists, the replacing time is long, a little less than dry resistance, the shortcoming such as color stability is poor.
2.LED luminous body adopts multi-chip (three and three strings or two and two strings) assembled package, its operating voltage is that DC18 volt or DC12 volt rated current are that the DC750ma illuminator is comprised of major and minor two LED luminous tubes.When turning off the light, key light pipe fault by the bright secondary light pipe of special-purpose lighting unit turning point, satisfies railway to the reliability requirement of signal optical source.(see figure 1)
3. under the condition that satisfies railway signal luminous intensity and range of a signal, the LED power acquisition two-way constant current-supplying of lighting a lamp, operating current be 350mA ± 15mA(account for rated current 47%), estimate that the colored lamp signal combination can guarantee lifetime (10 years) in without obvious light decay, look becomes, phenomenon.Satisfy Ministry of Railways's industry ministerial standard requirement
4. yellow led is changed greatly by temperature and current affects, changes the proportioning of chip trace element, has better solved the look instability problem.
5. adopt naked body radiator, area of dissipation satisfies chip operation requirement, good heat dissipation effect.
6. adopt the higfh-tension ceramics aluminium base as the LED circuit plate, insulation and heat-conductive characteristic are good, have better solved heat dissipation problem, have guaranteed the LED life-span.
7. point type LED light source lamp adopts the encapsulation of thermal conductance insulating cement, has not only strengthened radiating effect but also has strengthened barrier propterty under mal-condition.
8. adopt the present invention's circuit of light sources (special-purpose lighting unit) of lighting a lamp, realized the combination with existing lamp circuit, when a pipe fault wherein, can realize the remote failure locating alarming.
9. point type LED light source lamp and focus-fixing disk lamp holder have been set up the Anti-misplug measure and have been provided with prefocus plate lamp holder and lamp holder locating slot.
10. for guaranteeing reliable the utilization, the prefocus plate lamp holder is set up two boost lines, prevents that the loose contact of lamp socket contact from causing fault.
11, the special-purpose point type LED light source of railway signal of the present invention lamp, another characteristics are directly to be connected use with the general BX-34 transformer of existing railway.
Description of drawings
The invention will be further described below with reference to accompanying drawing:
Fig. 1 is the special-purpose point type LED light source of railway signal of the present invention lamp front view.
Fig. 2 is the special-purpose point type LED light source of railway signal of the present invention lamp left view.
Fig. 3 is the special-purpose point type LED light source of railway signal of the present invention lamp right view.
Fig. 4 is the circuit of light sources schematic diagram of lighting a lamp of the special-purpose point type LED light source of railway signal of the present invention lamp.
The specific embodiment
With reference to accompanying drawing 1～4, railway signal special-purpose point type LED light source lamp and the circuit of light sources of lighting a lamp are comprised of point type LED light source lamp and the circuit of light sources of lighting a lamp.
Point type LED light source lamp comprises radiator 1, lamp holder inner sleeve 2, lampshade 3, collector lens 4, illuminator and prefocus plate lamp holder 7.Illuminator is comprised of king light 5, secondary lamp 6, and king light 5 and secondary lamp 6 are comprised of the high-capacity LED luminous tube of a plurality of chip portfolios.Described king light 5 and secondary lamp 6 are separate illuminating source.
Described radiator 1 adopts gilled radiator, be provided with heat conduction aluminum substrate 9, heat conduction aluminum substrate installing hole in radiator 1 one sides, heat conduction aluminum substrate 9 is arranged in heat conduction aluminum substrate installing hole, king light 5 and secondary lamp 6 are arranged on the heat conduction aluminum substrate, lampshade 3 and collector lens 4 are equipped with in heat conduction aluminum substrate 9 outsides, lamp holder inner sleeve 2 is contained in radiator 1 bottom, prefocus plate lamp holder 7 is fixed on lamp holder inner sleeve 2 outsides, be provided with lamp holder locating slot 8 on prefocus plate lamp holder 7 tops, be used for the point type LED light source and install and be positioned at prefocus plate (lamp socket).
Described king light 5 adopts respectively the power supply limit 10 of high-temperature insulation wire bottom the prefocus plate lamp holder to be connected with secondary lamp 6 positive poles, and king light 5 adopts respectively the high-temperature insulation wire to be connected with lamp holder inner sleeve 2 with secondary lamp 6 negative poles.
The circuit of light sources of lighting a lamp comprises power unit, signal sampling part, signal processing, analysis and control part, LED drive part.
Power unit comprises the first rectifying voltage regulator circuit and the second rectifying voltage regulator circuit; The first rectifying voltage regulator circuit is made of transformer T1, rectifier bridge D1, voltage-regulation voltage-stabilization circuit U 5, capacitor C 3, capacitor C 5, resistance R 25 and resistance R 27, for amplifier U1, amplifier U3 and constant-current power supply circuit U6, constant-current power supply circuit U9 provide power supply.Described voltage-regulation voltage-stabilization circuit U 5 adopts 317 voltage-regulation voltage-stabilization integrated chips etc.Described rectifier bridge D1 adopts 5507 rectifier bridges.
The second rectifying voltage regulator circuit is made of transformer T2, rectifier bridge D2, mu balanced circuit U2, capacitor C 4, capacitor C 6, for microprocessor U7 in control module etc. provides power supply.
Signal sampling partly comprises resistance R 46, amplifier U1, resistance R 1, amplifier U3, consists of respectively the sampling feedback circuit of king light and secondary lamp, is used for control and regulation by the electric current of king light or secondary lamp.Feedback signal FB1, FB2 are connected respectively to the feedback end of constant-current power supply circuit U9, U6.Sampled signal and feedback signal are sent on microprocessor U7 simultaneously.Described amplifier U1, amplifier U3 adopt 358 operational amplifier integrated chips.
The LED drive part comprises king light D3, secondary lamp D4, adapter J2, king light constant-current power supply circuit U9, inductor L4, diode D13, capacitor C 8, capacitor C 9 and secondary lamp constant-current power supply circuit U6, inductor L1, diode D5, capacitor C 1, capacitor C 2, consist of current stabilization circuit, the LED that is respectively king light D3 and secondary lamp D4 provides stable operating current.The LED drive part is subjected to the control of microprocessor U7, and control line is M1, M2.Described king light constant-current power supply circuit U9 and secondary lamp constant-current power supply circuit U6 adopt LM2775 constant-current supply integrated chip.
Signal is processed, analysis and control partly comprises microprocessor U7, clock circuit.Clock circuit comprises crystal oscillator Y1, capacitor C 7, capacitor C 13, normal voltage circuit U 4, resistance R 27.Microprocessor U7 is the control core of lighting unit, its picked up signal on sampling resistor R46, sampling resistor R1, the normal voltage circuit U 4, thus judge the duty of major and minor lamp; These signals are connected respectively to PIN1, PIN2, PIN3, PIN4, the PIN6 of U7.The PIN5 of microprocessor U7 obtains voltage signal from the power supply front end, and then determines that can king light, secondary lamp work.Microprocessor U7 controls the duty of constant-current power supply circuit U9, U6 by I/O port M1, M2, thereby controls the unlatching of king light, secondary lamp or close.If king light power light-emitting pipe D3, secondary lamp power light-emitting pipe D4 are short-circuited, open circuit abnormal, microprocessor U7 by I/O mouth PD2 PD3 PD1 ER ER1 ER2 relay and the light emitting diode controlled send alarm, and take adequate measures to carry out king light, secondary lamp work switching in conjunction with port M1/M2, thereby guarantee the normal operation of signal lamp.Microprocessor U7 can also be by the I/O mouth ST1 ST2 accept outer setting.Described normal voltage circuit U 4 adopts 2.5V normal voltage circuit.
Described microprocessor U7 adopts 8515 microprocessors.Described crystal oscillator Y1 adopts the 6M crystal oscillator.
The PA0 of described microprocessor U7～PA7 end and PC0～PC7 end is connected on the system bus of unit.
In the described circuit of light sources of lighting a lamp, in the first rectifying voltage regulator circuit, transformer T1 is elementary is connected with the alternating current 220V power supply, T1 level of your transformer of 2,3 heels of rectifier bridge D1 is connected, capacitor C 3 is connected with 1,4 pin of rectifier bridge D1,2 pin of voltage-regulation voltage-stabilization circuit U 1 are connected with 1 pin of rectifier bridge D1,1 pin of voltage-regulation voltage-stabilization circuit U 5 is by resistance R 27 ground connection, and 3 of voltage-regulation voltage-stabilization circuit U 5 is connected with 1 pin of voltage-regulation voltage-stabilization circuit U 5 by resistance R 25.Capacitor C 5 one ends are connected with 3 pin of voltage-regulation voltage-stabilization circuit U 5, capacitor C 5 other end ground connection.3 pin of voltage-regulation voltage-stabilization circuit U 5 are connected with constant-current power supply circuit U6, U9, and 3 pin of voltage-regulation voltage-stabilization circuit U 5 are that the supply pin VDD of amplifier U1, amplifier U3 is connected.
In the second rectifying voltage regulator circuit, transformer T2 is elementary to be connected with the alternating current 220V power supply, and 3,4 of rectifier bridge D2 is connected with T2 level of transformer, and capacitor C 6 is connected with 1,2 pin of rectifier bridge D2.1 pin of voltage-regulation voltage-stabilization circuit U 2 is connected with 1 pin of rectifier bridge D2,2 pin ground connection of voltage-regulation voltage- stabilization circuit U 2, and 3 pin of voltage-regulation voltage-stabilization circuit U 2 are by capacitor C 4 ground connection.3 pin of voltage-regulation voltage-stabilization circuit U 2 are connected with 40 pin of microprocessor U7.1 pin of voltage-regulation voltage-stabilization circuit U 2 is connected with 5 pin of microprocessor U7, and U7 provides power supply for microprocessor.
In signal sampling part, resistance R 46 1 ends are connected with inductance L 4, are connected with the forward end of amplifier U1 simultaneously, 2 pin of microprocessor U7 are connected.Resistance R 46 other ends are connected with king light D3 positive pole, the backward end of amplifier U1 and the 1st pin of microprocessor U7, consist of king light sampling feedback circuit, are used for the electric current of control and regulation king light.The output of amplifier U1 is connected with feed back input 4 pin of permanent source current circuit U 9, resistance R 1 one ends are connected with inductance L 1, be connected with the forward end of amplifier U3 simultaneously, the other end of resistance R 1 is connected with secondary lamp D4 positive pole and the 4th pin of microprocessor U7 is connected, consist of the sampling feedback circuit of secondary lamp, be used for controlling to adjust the electric current of secondary lamp.
In the LED drive part, 1 pin of king light constant-current power supply circuit U9 is connected with 3 pin of voltage-regulation voltage-stabilization circuit electricity U5, the 3 pin ground connection of voltage-regulation voltage-stabilization circuit electricity U5, the control pin 5 of king light constant-current power supply circuit U9 is connected with 14 pin of microprocessor U7,1 pin of king light constant-current power supply circuit U9 is by capacitor C 9 ground connection, and 4 pin of king light constant-current power supply circuit U9 are connected with the output of amplifier U1.2 pin (output) of king light constant-current power supply circuit U9 are connected with diode D13 negative pole, inductor L4, the other end of inductor L4 is connected with the positive pole of king light D3 by sampling resistor R46, the plus earth of diode D13,1 pin of secondary lamp constant-current power supply circuit U6 is connected with 3 pin of voltage-regulation voltage-stabilization circuit U 5,3 pin ground connection, the control pin 5 of secondary lamp constant-current circuit U6 is connected with 15 pin of microprocessor U7, and 1 pin of voltage-regulation voltage-stabilization circuit U 5 is by capacitor C 1 ground connection.4 pin of secondary lamp constant-current power supply circuit U6 are connected with the output of amplifier U3.2 pin (output) of voltage-regulation voltage-stabilization circuit U 5 are connected with negative pole, the inductor L1 of diode D5, and the other end of inductor L1 is connected with the positive pole of secondary lamp D4 by sampling resistor R1.The plus earth of diode D5.The negative pole of king light D3, secondary lamp D4 is connected, and by resistance R 20 ground connection.
In signal processing, analysis and control part, 18,19 pin of microprocessor U7 are connected with the two ends of the crystal oscillator Y1 of clock circuit, 18 of microprocessor U7 passes through capacitor C 7 ground connection, 19 of microprocessor U7 passes through capacitor C 13 ground connection, 2 pin of normal voltage circuit U 4 are connected with the 6th pin of microprocessor U7,1 pin of normal voltage circuit U 4 is connected with the second rectifying voltage regulator VCC, 3 pin of normal voltage circuit U 4 connect, and 2 pin of normal voltage circuit U 4 are connected with the 2nd commutating voltage power supply VCC by resistance R 27.
Claims (6)
1. a railway signal special-purpose point type LED light source lamp and the circuit of light sources of lighting a lamp, is characterized in that being comprised of point type LED light source lamp and the circuit of light sources of lighting a lamp;
Point type LED light source lamp comprises radiator, lamp holder inner sleeve, lampshade, collector lens, illuminator and prefocus plate lamp holder, and illuminator is comprised of king light, secondary lamp;
Described radiator adopts gilled radiator, be provided with heat conduction aluminum substrate, heat conduction aluminum substrate installing hole in radiator one side, the heat conduction aluminum substrate is arranged in heat conduction aluminum substrate installing hole, king light and secondary lamp are arranged on the heat conduction aluminum substrate, lampshade and collector lens are equipped with in the heat conduction aluminum substrate outside, be sleeved on the radiator bottom in lamp holder, the prefocus plate lamp holder is fixed on the lamp holder outside of inner cover;
The circuit of light sources of lighting a lamp comprises power unit, signal sampling part, signal processing, analysis and control part, LED drive part;
Power unit comprises the first rectifying voltage regulator circuit and the second rectifying voltage regulator circuit; The first rectifying voltage regulator circuit is made of transformer T1, rectifier bridge D1, voltage-regulation voltage-stabilization circuit U 5, capacitor C 3, capacitor C 5, resistance R 25 and resistance R 27, for amplifier U1, amplifier U3 and constant-current power supply circuit U6, constant-current power supply circuit U9 provide power supply;
The second rectifying voltage regulator circuit is made of transformer T2, rectifier bridge D2, mu balanced circuit U2, capacitor C 4, capacitor C 6, for the microprocessor U7 in control module provides power supply;
in the described circuit of light sources of lighting a lamp, in the first rectifying voltage regulator circuit, transformer T1 is elementary is connected with the alternating current 220V power supply, 2 of rectifier bridge D1, 3 heel transformer T1 time levels are connected, capacitor C 3 and 1 of rectifier bridge D1, 4 pin are connected, 2 pin of voltage-regulation voltage-stabilization circuit U 1 are connected with 1 pin of rectifier bridge D1, 1 pin of voltage-regulation voltage-stabilization circuit U 5 is by resistance R 27 ground connection, 3 of voltage-regulation voltage-stabilization circuit U 5 is connected with 1 pin of voltage-regulation voltage-stabilization circuit U 5 by resistance R 25, capacitor C 5 one ends are connected with 3 pin of voltage-regulation voltage-stabilization circuit U 5, capacitor C 5 other end ground connection, 3 pin of voltage-regulation voltage-stabilization circuit U 5 and constant-current power supply circuit U6, U9 is connected, 3 pin of voltage-regulation voltage-stabilization circuit U 5 and amplifier U1, the supply pin VDD of amplifier U3 is connected,
In the second rectifying voltage regulator circuit, transformer T2 is elementary to be connected with the alternating current 220V power supply, and 3,4 of rectifier bridge D2 is connected with T2 level of transformer, and capacitor C 6 is connected with 1,2 pin of rectifier bridge D2;
Signal sampling partly comprises resistance R 46, amplifier U1, resistance R 1, amplifier U3, consist of respectively the sampling feedback circuit of king light and secondary lamp, be used for control and regulation by the electric current of king light or secondary lamp, feedback signal FB1, FB2 are connected respectively to the feedback end of constant-current power supply circuit U9, U6, and sampled signal and feedback signal are sent on microprocessor U7 simultaneously;
In signal sampling part, resistance R 46 1 ends are connected with inductance L 4, are connected with the forward end of amplifier U1 simultaneously, 2 pin of microprocessor U7 are connected; Resistance R 46 other ends are connected with king light D3 positive pole, the backward end of amplifier U1 and the 1st pin of microprocessor U7, consist of king light sampling feedback circuit, are used for the electric current of control and regulation king light; The output of amplifier U1 is connected with feed back input 4 pin of permanent source current circuit U 9, resistance R 1 one ends are connected with inductance L 1, be connected with the forward end of amplifier U3 simultaneously, the other end of resistance R 1 is connected with secondary lamp D4 positive pole and the 4th pin of microprocessor U7 is connected, consist of the sampling feedback circuit of secondary lamp, be used for controlling to adjust the electric current of secondary lamp;
The LED drive part comprises king light D3, secondary lamp D4, adapter J2, king light constant-current power supply circuit U9, inductor L4, diode D13, capacitor C 8, capacitor C 9 and secondary lamp constant-current power supply circuit U6, inductor L1, diode D5, capacitor C 1, capacitor C 2, consist of current stabilization circuit, the LED that is respectively king light D3 and secondary lamp D4 provides stable operating current;
In the LED drive part, 1 pin of king light constant-current power supply circuit U9 is connected with 3 pin of voltage-regulation voltage-stabilization circuit U 5,3 pin ground connection of voltage-regulation voltage-stabilization circuit U 5, the control pin 5 of king light constant-current power supply circuit U9 is connected with 14 pin of microprocessor U7,1 pin of king light constant-current power supply circuit U9 is by capacitor C 9 ground connection, and 4 pin of king light constant-current power supply circuit U9 are connected with the output of amplifier U1;
2 pin of king light constant-current power supply circuit U9 are connected with diode D13 negative pole, inductor L4, the other end of inductor L4 is connected with the positive pole of king light D3 by sampling resistor R46, the plus earth of diode D13,1 pin of secondary lamp constant-current power supply circuit U6 is connected with 3 pin of voltage-regulation voltage-stabilization circuit U 5,3 pin ground connection, the control pin 5 of secondary lamp constant-current circuit U6 is connected with 15 pin of microprocessor U7,1 pin of voltage-regulation voltage-stabilization circuit U 5 is by capacitor C 1 ground connection, and 4 pin of secondary lamp constant-current power supply circuit U6 are connected with the output of amplifier U3;
2 pin of voltage-regulation voltage-stabilization circuit U 5 are connected with the negative pole of diode D5, inductor L1, and the other end of inductor L1 is connected with the positive pole of secondary lamp D4 by sampling resistor R1, the plus earth of diode D5;
The negative pole of king light D3, secondary lamp D4 is connected, and by resistance R 20 ground connection;
Signal is processed, analysis and control partly comprises microprocessor U7 and clock circuit; Clock circuit comprises crystal oscillator Y1, capacitor C 7, capacitor C 13, normal voltage circuit U 4 and resistance R 27;
In signal processing, analysis and control part, 18,19 pin of microprocessor U7 are connected with the two ends of the crystal oscillator Y1 of clock circuit, 18 of microprocessor U7 passes through capacitor C 7 ground connection, 19 pin of microprocessor U7 are by capacitor C 13 ground connection, 2 pin of normal voltage circuit U 4 are connected with the 6th pin of microprocessor U7,1 pin of normal voltage circuit U 4 is connected with the second rectifying voltage regulator VCC, 3 pin of normal voltage circuit U 4 connect, and 2 pin of normal voltage circuit U 4 are connected with the 2nd commutating voltage power supply VCC by resistance R 27;
1 pin of voltage-regulation voltage-stabilization circuit U 2 is connected with 1 pin of rectifier bridge D2,2 pin ground connection of voltage-regulation voltage-stabilization circuit U 2, and 3 pin of voltage-regulation voltage-stabilization circuit U 2 are by capacitor C 4 ground connection;
3 pin of voltage-regulation voltage-stabilization circuit U 2 are connected with 40 pin of microprocessor U7;
1 pin of voltage-regulation voltage-stabilization circuit U 2 is connected with 5 pin of microprocessor U7, and U7 provides power supply for microprocessor.
2. railway signal according to claim 1 special-purpose point type LED light source lamp and the circuit of light sources of lighting a lamp, is characterized in that king light and secondary lamp are comprised of the high-capacity LED luminous tube of a plurality of chip portfolios, and described king light and secondary lamp are separate illuminating source.
3. railway signal according to claim 1 special-purpose point type LED light source lamp and the circuit of light sources of lighting a lamp is characterized in that being provided with the lamp holder locating slot on prefocus plate lamp holder top, are used for the point type LED light source and install and be positioned at prefocus plate.
4. railway signal according to claim 1 special-purpose point type LED light source lamp and the circuit of light sources of lighting a lamp, it is characterized in that described king light and secondary lamp positive pole adopt respectively the power supply limit of high-temperature insulation wire bottom the prefocus plate lamp holder to be connected, king light adopts respectively the high-temperature insulation wire to be connected with the lamp holder inner sleeve with secondary lamp negative pole.
5. railway signal according to claim 1 special-purpose point type LED light source lamp and the circuit of light sources of lighting a lamp, is characterized in that the LED drive part is subjected to the control of microprocessor U7, and control line is M1, M2.
6. railway signal according to claim 1 special-purpose point type LED light source lamp and the circuit of light sources of lighting a lamp is characterized in that the PA0 of described microprocessor U7～PA7 end and PC0～PC7 end are connected on the system bus of unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102879541A CN102330935B (en) | 2011-09-26 | 2011-09-26 | Point type LED (Light Emitting Diode) light source lamp special for railway signal and point lamp light source circuit |
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| CN2011102879541A CN102330935B (en) | 2011-09-26 | 2011-09-26 | Point type LED (Light Emitting Diode) light source lamp special for railway signal and point lamp light source circuit |
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| CN102330935A CN102330935A (en) | 2012-01-25 |
| CN102330935B true CN102330935B (en) | 2013-06-05 |
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| TWI561763B (en) * | 2014-04-09 | 2016-12-11 | Brightek Optoelectronic Shenzhen Co Ltd | Lighting device with insertable type |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105387389B (en) * | 2015-12-18 | 2018-05-11 | 汪巍 | It is inserted into point type LED railway signal lamps |
| CN106793430A (en) * | 2017-03-24 | 2017-05-31 | 安徽大鸿智能科技有限公司 | Self-monitoring street lamp |
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| JP5364559B2 (en) * | 2009-12-16 | 2013-12-11 | 株式会社日立製作所 | Field equipment controller |
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| CN2843947Y (en) * | 2005-08-09 | 2006-12-06 | 重庆万道光电科技有限公司 | A kind of LED multicore sheet railway signal lamp light source |
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