LED roadblock illuminating lamp circuit

Abstract

The utility model discloses an LED roadblock illuminating lamp circuit, which relates to the technical field of illuminating lamps, and comprises a power supply module for supplying power; the flicker control module is used for timing and controlling the main LED lamp module to flicker, and controlling the main LED lamp module and the auxiliary LED lamp module to flicker at the same time when the mode switching module provides the mode switching signal; the cycle control module is used for timing and cyclically controlling the main LED lamp module and the auxiliary LED lamp module to flicker; the main LED lamp module and the auxiliary LED lamp module are both used for flickering warning work. According to the LED roadblock illuminating lamp circuit, the main LED lamp module and the auxiliary LED lamp module can be controlled to circularly flicker in a timed mode, the working period of the main LED lamp module is shortened, the working temperature is reduced, the service life is prolonged, the main LED lamp module and the auxiliary LED lamp module can be controlled to flicker and warn at the same time, and the warning effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting lamps, in particular to an LED roadblock lighting lamp circuit. Background Technique

[0002] The LED roadblock lighting lamp is a special lighting tool, mainly used for cooperating with traffic roadblock tools at night, applicable to road command, traffic guidance, inspection and road construction warning. The LED roadblock lighting lamps in the prior art generally adopt the method of alternating lighting of two groups of LEDs, flashing red light, which has a certain warning effect. However, when the LED roadblock lighting lamp is performing warning work, it needs to flash frequently. Long-term flashing is likely to cause the LEDs to heat up, reducing the service life of the LEDs, and the lighting degree of the LED lamps is limited, and the warning effect cannot be further enhanced. Therefore, it needs to be improved. Content of the Utility Model

[0003] The embodiment of the utility model provides an LED roadblock lighting lamp circuit to solve the problems put forward in the above background technique.

[0004] To achieve the above object, the utility model provides the following technical solution:

[0005] An LED roadblock lighting lamp circuit includes: a power supply module, a flashing control module, a cycle control module, a mode switching module, a main LED lamp module and a secondary LED lamp module;

[0006] The power supply module is used for accessing DC electric energy, filtering and stabilizing the DC electric energy and outputting the first electric energy;

[0007] The flashing control module is connected to the power supply module, used for setting the first timing time, and when receiving the first electric energy, timing to output the first control signal, and after the timing ends, stopping outputting the first control signal and timing to output the second control signal, and the first control signal and the second control signal are output cyclically;

[0008] The mode switching module is connected to the power supply module, used for receiving the first electric energy and providing a mode switching signal;

[0009] The cycle control module is connected to the power supply module and the mode switching module, used for setting the second timing time, and when receiving the first electric energy, timing to output the third control signal, and after the timing ends, stopping outputting the third control signal and timing to output the fourth control signal, and the third control signal and the fourth control signal are output cyclically, and when receiving the mode switching signal, stopping outputting the third control signal and the fourth control signal;

[0010] The main LED lamp module is connected to the power supply module, the flashing control module and the cyclic control module, and is used to receive the first electric energy. When receiving the first control signal or the second control signal, it performs flashing lighting work. When receiving the third control signal, it stops lighting work. When receiving the fourth control signal, it resumes lighting work;

[0011] The secondary LED lamp module is connected to the power supply module, the flashing control module, the cyclic control module and the mode switching module, and is used to receive the first electric energy. When receiving the third control signal, it receives the first control signal or the second control signal and performs flashing lighting work. When receiving the fourth control signal, it stops lighting work. When receiving the mode switching signal, it performs flashing lighting work.

[0012] As a further solution of the present utility model: The power supply module includes a power supply interface, a first capacitor and a first diode; The mode switching module includes a third resistor, a first push-button switch, a fourth resistor and a fourth diode;

[0013] Preferably, the first end of the power supply interface is connected to one end of the first capacitor and the cathode of the first diode and is connected to the moving end of the first push-button switch through the third resistor. The static end of the first push-button switch is connected to the anode of the fourth diode and the cyclic control module and is connected to the anode of the first diode, the other end of the first capacitor and the second end of the power supply interface through the fourth resistor. The cathode of the fourth diode is connected to the secondary LED lamp module.

[0014] As a further solution of the present utility model: The flashing control module includes a first resistor, a second resistor, a third diode, a second diode, a first potentiometer, a second potentiometer, a second capacitor, a third capacitor, a fifth resistor, a sixth resistor and a first timer;

[0015] Preferably, the seventh end of the first timer is connected to the anode of the second diode and one end of the second resistor and is connected to the cathode of the first diode, one end of the sixth resistor, the fourth end and the eighth end of the first timer through the first resistor. The third end of the first timer is connected to the first end of the fifth resistor. The second end of the fifth resistor is connected to the other end of the sixth resistor, the main LED lamp module and the secondary LED lamp module. The cathode of the second diode is connected to one end of the first potentiometer. The other end of the second resistor is connected to the cathode of the third diode. The anode of the third diode is connected to the other end of the first potentiometer. The sliding end of the first potentiometer is connected to one end of the second potentiometer, the sixth end and the second end of the first timer. The other end and the sliding end of the second potentiometer are both grounded through the second capacitor. The first end of the first timer is grounded. The fifth end of the first timer is grounded through the third capacitor.

[0016] As a further solution of the utility model: The main LED lamp module includes a first thyristor, an eighth resistor, a first switching tube, a second switching tube, a sixth switching tube, a seventh resistor, a first main LED lamp and a second main LED lamp;

[0017] Preferably, one end of the first thyristor is connected to the second end of the fifth resistor, the other end of the first thyristor is connected to the bases of the first switching tube and the second switching tube, the control end of the first thyristor is connected to the collector of the sixth switching tube and is connected to the cathode of the first diode, the collector of the first switching tube and the emitter of the second switching tube through the eighth resistor, the base of the sixth switching tube is connected to the first end of the seventh resistor, the second end of the seventh resistor is connected to the cycle control module, the cathode of the fifth diode is connected to the cathode of the fourth diode, the emitter of the first switching tube is connected to the first end of the first main LED lamp, the collector of the second switching tube is connected to the first end of the second main LED lamp, and the second ends of the first main LED lamp, the second main LED lamp and the emitter of the sixth switching tube are all grounded.

[0018] As a further solution of the utility model: The auxiliary LED lamp module includes a third switching tube, a fourth switching tube, a first auxiliary LED lamp, a fifth diode, a second auxiliary LED lamp and a second thyristor;

[0019] Preferably, one end of the second thyristor is connected to the second end of the fifth resistor, the control end of the second thyristor is connected to the cathodes of the fourth diode and the fifth diode, the anode of the fifth diode is connected to the second end of the seventh resistor and the cycle control module, the other end of the second thyristor is connected to the bases of the third switching tube and the fourth switching tube, the collector of the third switching tube is connected to the emitter of the fourth switching tube and the cathode of the first diode, the emitters of the third switching tube and the collector of the fourth switching tube are respectively connected to the first ends of the first auxiliary LED lamp and the second auxiliary LED lamp, and the second ends of the first auxiliary LED lamp and the second auxiliary LED lamp are both grounded.

[0020] As a further solution of the utility model: The cycle control module includes a sixth diode, a ninth resistor, a tenth resistor, a seventh diode, a fourth capacitor, a second timer, an eleventh resistor, a fifth switching tube, a fifth capacitor and a twelfth resistor;

[0021] Preferably, the emitter of the fifth switching transistor is connected to the eighth terminal of the second timer and the first terminal of the power supply interface, and is connected to the seventh terminal of the second timer, one end of the tenth resistor, and the anode of the sixth diode through the eleventh resistor. The cathode of the sixth diode is connected to the anode of the seventh diode, one end of the fourth capacitor, the sixth terminal and the second terminal of the second timer through the ninth resistor. The collector of the fifth switching transistor is connected to the fourth terminal of the second timer. The third terminal of the second timer is connected to the anode of the fifth diode and the second end of the seventh resistor. The base of the fifth switching transistor is connected to the static terminal of the first push-button switch and is grounded through the twelfth resistor. The fifth terminal of the second timer is grounded through the fifth capacitor. The other end of the fourth capacitor and the first terminal of the second timer are both grounded.

[0022] Compared with the prior art, the beneficial effects of the present utility model are as follows: The LED roadblock lighting lamp circuit of the present utility model can control the main LED lamp module to blink by the blinking control module, thereby serving as a roadblock warning. At the same time, the cycle control module periodically controls the main LED lamp module and the auxiliary LED lamp module to blink cyclically, thereby shortening the working cycle of the main LED lamp module, reducing the working temperature of the main LED lamp module, and extending the service life of the main LED lamp module. When it is necessary to further improve the warning effect, the manual control mode switching module can provide a mode switching signal, thereby controlling the main LED lamp module and the auxiliary LED lamp module to be simultaneously controlled by the blinking control module, controlling the cycle control module to stop working, and thereby controlling the main LED lamp module and the auxiliary LED lamp module to blink and warn simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments of the present utility model will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 It is a schematic block diagram of the principle of an LED roadblock lighting lamp circuit provided by an embodiment of the present utility model.

[0025] Figure 2 It is a circuit diagram of an LED roadblock lighting lamp circuit provided by an embodiment of the present utility model.

[0026] Figure 3 It is a connection circuit diagram of the cycle control module provided by an embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] In one embodiment, please refer to Figure 1 , an LED roadblock lighting circuit, comprising: a power supply module 1, a flashing control module 2, a cycle control module 3, a mode switching module 4, a main LED lamp module 5, and a secondary LED lamp module 6;

[0029] Specifically, the power supply module 1 is used to access DC electrical energy, filter and regulate the DC electrical energy, and output the first electrical energy;

[0030] The flashing control module 2 is connected to the power supply module 1, and is used to set the first timing time, and when receiving the first electrical energy, output the first control signal at a fixed time, and after the timing ends, stop outputting the first control signal and output the second control signal at a fixed time, and the first control signal and the second control signal are output in a cycle;

[0031] The mode switching module 4 is connected to the power supply module 1, and is used to receive the first electrical energy and provide a mode switching signal;

[0032] The cycle control module 3 is connected to the power supply module 1 and the mode switching module 4, and is used to set the second timing time, and when receiving the first electrical energy, output the third control signal at a fixed time, and after the timing ends, stop outputting the third control signal and output the fourth control signal at a fixed time, and the third control signal and the fourth control signal are output in a cycle, and when receiving the mode switching signal, stop outputting the third control signal and the fourth control signal;

[0033] The main LED lamp module 5 is connected to the power supply module 1, the flashing control module 2, and the cycle control module 3, and is used to receive the first electrical energy, and when receiving the first control signal or the second control signal, perform flashing lighting work, and when receiving the third control signal, stop lighting work, and when receiving the fourth control signal, resume lighting work;

[0034] The secondary LED lamp module 6 is connected to the power supply module 1, the flashing control module 2, the cycle control module 3, and the mode switching module 4, and is used to receive the first electrical energy, and when receiving the third control signal, receive the first control signal or the second control signal and perform flashing lighting work, and when receiving the fourth control signal, stop lighting work, and when receiving the mode switching signal, perform flashing lighting work.

[0035] In a specific embodiment, the above-mentioned power supply module 1 can adopt a power supply circuit composed of a power supply interface, a capacitor and a diode, and can be connected to a DC power supply, such as a storage battery, a lithium battery, etc., to access DC electrical energy and perform filtering and voltage regulation on the DC electrical energy; the above-mentioned flashing control module 2 can adopt a flashing control circuit composed of a resistor, a diode, a 555 timing chip, etc., and can set the timing time and cyclically output a first control signal and a second control signal at regular intervals. The first control signal is a signal in a high-level state, and the second control signal is a signal in a low-level state; the above-mentioned cycle control module 3 can adopt a cycle control circuit composed of a diode, a resistor, a 555 timing chip, a triode, etc., and can set the timing time and cyclically output a third control signal and a fourth control signal at regular intervals. The third control signal is a signal in a high-level state, and the fourth control signal is a signal in a low-level state. The working state of the cycle control circuit can be controlled by the mode switching module 4; the above-mentioned mode switching module 4 can be composed of a single-pole switch, a resistor and a diode, and after the switch is pressed, a mode switching signal in a high-level state is provided; the above-mentioned main LED lamp module 5 can adopt a main LED lamp circuit composed of a thyristor, a triode, an LED lamp, etc., to perform flashing warning work; the above-mentioned auxiliary LED lamp module 6 can adopt an auxiliary LED lamp circuit composed of a thyristor, a triode, a diode, an LED lamp, etc., to perform flashing warning work.

[0036] In another embodiment, please refer to Figure 1 , Figure 2 and Figure 3 , the power supply module 1 includes a power supply interface, a first capacitor C1 and a first diode D1; the mode switching module 4 includes a third resistor R3, a first key switch K1, a fourth resistor R4 and a fourth diode D4;

[0037] Specifically, the first end of the power supply interface is connected to one end of the first capacitor C1 and the cathode of the first diode D1 and is connected to the moving end of the first key switch K1 through the third resistor R3. The static end of the first key switch K1 is connected to the anode of the fourth diode D4 and the cycle control module 3 and is connected to the anode of the first diode D1, the other end of the first capacitor C1 and the second end of the power supply interface through the fourth resistor R4. The cathode of the fourth diode D4 is connected to the auxiliary LED lamp module 6.

[0038] In a specific embodiment, the above-mentioned power supply interface can be connected to a DC power supply to access DC electrical energy; the above-mentioned first key switch K1 can be selected as a single-pole switch.

[0039] Further, the flashing control module 2 includes a first resistor R1, a second resistor R2, a third diode D3, a second diode D2, a first potentiometer RP1, a second potentiometer RP2, a second capacitor C2, a third capacitor C3, a fifth resistor R5, a sixth resistor R6 and a first timer IC1;

[0040] Specifically, the seventh terminal of the first timer IC1 is connected to the anode of the second diode D2 and one end of the second resistor R2, and is connected to the cathode of the first diode D1, one end of the sixth resistor R6, the fourth terminal and the eighth terminal of the first timer IC1 through the first resistor R1. The third terminal of the first timer IC1 is connected to the first end of the fifth resistor R5. The second end of the fifth resistor R5 is connected to the other end of the sixth resistor R6, the main LED lamp module 5 and the sub-LED lamp module 6. The cathode of the second diode D2 is connected to one end of the first potentiometer RP1. The other end of the second resistor R2 is connected to the cathode of the third diode D3. The anode of the third diode D3 is connected to the other end of the first potentiometer RP1. The sliding contact end of the first potentiometer RP1 is connected to one end of the second potentiometer RP2, the sixth terminal and the second terminal of the first timer IC1. The other end and the sliding contact end of the second potentiometer RP2 are both grounded through the second capacitor C2. The first terminal of the first timer IC1 is grounded. The fifth terminal of the first timer IC1 is grounded through the third capacitor C3.

[0041] In a specific embodiment, the first timer IC1 can be selected as an NE555 integrated chip; the sliding contact end of the first potentiometer RP1 is at the central part of the first potentiometer RP1, so that the duty cycle output by the first timer IC1 is 50%, ensuring the same flashing time. The second potentiometer RP2 can adjust the frequency of the signal output by the third terminal of the first timer IC1.

[0042] Further, the main LED lamp module 5 includes a first thyristor S1, an eighth resistor R8, a first switching tube V1, a second switching tube V2, a sixth switching tube V6, a seventh resistor R7, a first main LED lamp and a second main LED lamp;

[0043] Specifically, one end of the first thyristor S1 is connected to the second end of the fifth resistor R5. The other end of the first thyristor S1 is connected to the base of the first switching tube V1 and the base of the second switching tube V2. The control end of the first thyristor S1 is connected to the collector of the sixth switching tube V6 and is connected to the cathode of the first diode D1, the collector of the first switching tube V1 and the emitter of the second switching tube V2 through the eighth resistor R8. The base of the sixth switching tube V6 is connected to the first end of the seventh resistor R7. The second end of the seventh resistor R7 is connected to the loop control module 3. The cathode of the fifth diode D5 is connected to the cathode of the fourth diode D4. The emitter of the first switching tube V1 is connected to the first end of the first main LED lamp. The collector of the second switching tube V2 is connected to the first end of the second main LED lamp. The second end of the first main LED lamp, the second end of the second main LED lamp and the emitter of the sixth switching tube V6 are all grounded.

[0044] In a specific embodiment, the above-mentioned first thyristor S1 can be a bidirectional thyristor; the above-mentioned first switching transistor V1 and the sixth switching transistor V6 can both be NPN-type triodes, and the second switching transistor V2 can be a PNP-type triode; the selection of the above-mentioned first main LED lamp is the same as that of the second main LED lamp.

[0045] Further, the auxiliary LED lamp module 6 includes a third switching transistor V3, a fourth switching transistor V4, a first auxiliary LED lamp, a fifth diode D5, a second auxiliary LED lamp, and a second thyristor S2;

[0046] Specifically, one end of the second thyristor S2 is connected to the second end of the fifth resistor R5, the control end of the second thyristor S2 is connected to the cathode of the fourth diode D4 and the cathode of the fifth diode D5, the anode of the fifth diode D5 is connected to the second end of the seventh resistor R7 and the cycle control module 3, the other end of the second thyristor S2 is connected to the base of the third switching transistor V3 and the base of the fourth switching transistor V4, the collector of the third switching transistor V3 is connected to the emitter of the fourth switching transistor V4 and the cathode of the first diode D1, and the emitters of the third switching transistor V3 and the fourth switching transistor V4 and the collectors of the fourth switching transistor V4 are respectively connected to the first ends of the first auxiliary LED lamp and the second auxiliary LED lamp, and the second ends of the first auxiliary LED lamp and the second auxiliary LED lamp are both grounded.

[0047] In a specific embodiment, the above-mentioned second thyristor S2 can be a bidirectional thyristor; the above-mentioned third switching transistor V3 can be an NPN-type triode, and the fourth switching transistor V4 can be a PNP-type triode; the selection of the above-mentioned first auxiliary LED lamp is the same as that of the second auxiliary LED lamp, and is the same as that of the first main LED lamp.

[0048] Further, the cycle control module 3 includes a sixth diode D6, a ninth resistor R9, a tenth resistor R10, a seventh diode D7, a fourth capacitor C4, a second timer IC2, an eleventh resistor R11, a fifth switching transistor V5, a fifth capacitor C5, and a twelfth resistor R12;

[0049] Specifically, the emitter of the fifth switching transistor V5 is connected to the eighth terminal of the second timer IC2 and the first terminal of the power supply interface, and is connected to the seventh terminal of the second timer IC2, one end of the tenth resistor R10, and the anode of the sixth diode D6 through the eleventh resistor R11. The cathode of the sixth diode D6 is connected to the anode of the seventh diode D7, one end of the fourth capacitor C4, the sixth terminal, and the second terminal of the second timer IC2 through the ninth resistor R9. The collector of the fifth switching transistor V5 is connected to the fourth terminal of the second timer IC2. The third terminal of the second timer IC2 is connected to the anode of the fifth diode D5 and the second terminal of the seventh resistor R7. The base of the fifth switching transistor V5 is connected to the static terminal of the first push-button switch K1 and is grounded through the twelfth resistor R12. The fifth terminal of the second timer IC2 is grounded through the fifth capacitor C5. The other end of the fourth capacitor C4 and the first terminal of the second timer IC2 are both grounded.

[0050] In a specific embodiment, the second timer IC2 can be selected as an NE555 chip. The third control signal output by the third terminal of the second timer IC2 is in a high level state, and the fourth control signal is in a low level state. The resistance value of the ninth resistor R9 is equal to the resistance value of the tenth resistor R10, so that the duty cycle of the signal output by the third terminal of the second timer IC2 is 50%. The fifth switching transistor V5 can be selected as a PNP type triode.

[0051] In the LED roadblock lighting circuit of this embodiment, DC electrical energy is accessed through the power interface. The first capacitor C1 and the first diode D1 perform filtering and voltage stabilization processing. The eighth resistor R8 triggers the conduction of the first thyristor S1. The first timer IC1 cooperates with the first resistor R1, the second resistor R2, the third diode D3, the second diode D2, the first potentiometer RP1, the second potentiometer RP2, the second capacitor C2, and the third capacitor C3 to perform timing work. Specifically, initially, the voltage of the second capacitor C2 is 0, the second terminal of the first timer IC1 is at a low level, the third terminal of the first timer IC1 outputs a high level and controls the conduction of the first switching tube V1, causing the first main LED light to turn on. At the same time, the second diode D2 charges the second capacitor C2, the potential of the sixth terminal of the first timer IC1 rises, the first timer IC1 resets and the third terminal of the first timer IC1 outputs a low level, triggering the conduction of the second switching tube V2, and the second main LED light turns on. Then, the second capacitor C2 discharges through the third diode D3 and the second resistor R2 to the seventh terminal of the first timer IC1, the potential of the second terminal of the first timer IC1 drops, the third terminal of the first timer IC1 is set and outputs a high level, and the first main LED light turns on. This cycle continues, thereby controlling the first main LED light and the second main LED light to flash. Similarly, the second timer IC2 cooperates with the sixth diode D6, the ninth resistor R9, the tenth resistor R10, the seventh diode D7, the fourth capacitor C4, the eleventh resistor R11, and the fifth capacitor C5 to also perform cyclic timing work, and when the first main LED light and the second main LED light are flashing, it controls the cyclic conduction of the first thyristor S1 and the second thyristor S2. Then, within the timing time, after controlling the first main LED light and the second main LED light to flash, it switches to the first auxiliary LED light and the second auxiliary LED light to perform flashing work and cycles of switching. When it is necessary to improve the warning effect, just press the first key switch K1, causing the second thyristor S2 to conduct and the fifth switching tube V5 to cut off. The second timer IC2 notifies the work, and then the first timer IC1 simultaneously controls the conduction of the first switching tube V1 and the third switching tube V3, controls the conduction of the second switching tube V2 and the fourth switching tube V4, controls the first main LED light and the first auxiliary LED light to light up simultaneously. After the first main LED light and the first auxiliary LED light go out, then it controls the second main LED light and the second auxiliary LED light to light up simultaneously. After the second main LED light and the second auxiliary LED light go out, then it controls the first main LED light and the first auxiliary LED light to light up simultaneously again. This cycle continues.

[0052] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0053] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An LED roadblock lighting circuit, characterized in that the LED roadblock lighting circuit includes: a power supply module, a flashing control module, a cycle control module, a mode switching module, a main LED lamp module and a secondary LED lamp module; the power supply module is used to access DC electric energy, filter and regulate the DC electric energy and output the first electric energy; the flashing control module is connected to the power supply module, used to set the first timing time, and when receiving the first electric energy, output the first control signal at a fixed time, and after the timing ends, stop outputting the first control signal and output the second control signal at a fixed time, and the first control signal and the second control signal are output cyclically; the mode switching module is connected to the power supply module, used to receive the first electric energy and provide a mode switching signal; the cycle control module is connected to the power supply module and the mode switching module, used to set the second timing time, and when receiving the first electric energy, output the third control signal at a fixed time, and after the timing ends, stop outputting the third control signal and output the fourth control signal at a fixed time, and the third control signal and the fourth control signal are output cyclically, and when receiving the mode switching signal, stop outputting the third control signal and the fourth control signal; the main LED lamp module is connected to the power supply module, the flashing control module and the cycle control module, used to receive the first electric energy, when receiving the first control signal or the second control signal, perform flashing lighting work, when receiving the third control signal, stop lighting work, and when receiving the fourth control signal, resume lighting work; the secondary LED lamp module is connected to the power supply module, the flashing control module, the cycle control module and the mode switching module, used to receive the first electric energy, when receiving the third control signal, receive the first control signal or the second control signal and perform flashing lighting work, when receiving the fourth control signal, stop lighting work, and when receiving the mode switching signal, perform flashing lighting work.

2. The LED roadblock lighting circuit according to claim 1, wherein, The power supply module includes a power supply interface, a first capacitor and a first diode; the mode switching module includes a third resistor, a first push-button switch, a fourth resistor and a fourth diode; The first end of the power supply interface is connected to one end of the first capacitor and the cathode of the first diode and is connected to the moving end of the first push-button switch through the third resistor. The static end of the first push-button switch is connected to the anode of the fourth diode and the cycle control module and is connected to the anode of the first diode, the other end of the first capacitor and the second end of the power supply interface through the fourth resistor. The cathode of the fourth diode is connected to the secondary LED lamp module.

3. The LED roadblock lighting circuit according to claim 2, wherein The flashing control module includes a first resistor, a second resistor, a third diode, a second diode, a first potentiometer, a second potentiometer, a second capacitor, a third capacitor, a fifth resistor, a sixth resistor and a first timer; The seventh terminal of the first timer is connected to the anode of the second diode and one end of the second resistor, and is connected to the cathode of the first diode, one end of the sixth resistor, the fourth terminal and the eighth terminal of the first timer through the first resistor. The third terminal of the first timer is connected to the first end of the fifth resistor. The second end of the fifth resistor is connected to the other end of the sixth resistor, the main LED lamp module and the auxiliary LED lamp module. The cathode of the second diode is connected to one end of the first potentiometer. The other end of the second resistor is connected to the cathode of the third diode. The anode of the third diode is connected to the other end of the first potentiometer. The sliding terminal of the first potentiometer is connected to one end of the second potentiometer, the sixth terminal and the second terminal of the first timer. The other end and the sliding terminal of the second potentiometer are both grounded through the second capacitor. The first terminal of the first timer is grounded. The fifth terminal of the first timer is grounded through the third capacitor.

4. The LED roadblock lighting circuit according to claim 3, characterized in that, The main LED lamp module includes a first thyristor, an eighth resistor, a first switching tube, a second switching tube, a sixth switching tube, a seventh resistor, a first main LED lamp and a second main LED lamp; One end of the first thyristor is connected to the second end of the fifth resistor. The other end of the first thyristor is connected to the base of the first switching tube and the base of the second switching tube. The control terminal of the first thyristor is connected to the collector of the sixth switching tube and is connected to the cathode of the first diode, the collector of the first switching tube and the emitter of the second switching tube through the eighth resistor. The base of the sixth switching tube is connected to the first end of the seventh resistor. The second end of the seventh resistor is connected to the cycle control module. The cathode of the fifth diode is connected to the cathode of the fourth diode. The emitter of the first switching tube is connected to the first end of the first main LED lamp. The collector of the second switching tube is connected to the first end of the second main LED lamp. The second end of the first main LED lamp, the second end of the second main LED lamp and the emitter of the sixth switching tube are all grounded.

5. The LED roadblock lighting circuit according to claim 4, wherein The auxiliary LED lamp module includes a third switching tube, a fourth switching tube, a first auxiliary LED lamp, a fifth diode, a second auxiliary LED lamp and a second thyristor; One end of the second thyristor is connected to the second end of the fifth resistor. The control terminal of the second thyristor is connected to the cathode of the fourth diode and the cathode of the fifth diode. The anode of the fifth diode is connected to the second end of the seventh resistor and the cycle control module. The other end of the second thyristor is connected to the base of the third switching tube and the base of the fourth switching tube. The collector of the third switching tube is connected to the emitter of the fourth switching tube and the cathode of the first diode. The emitter of the third switching tube and the collector of the fourth switching tube are respectively connected to the first end of the first auxiliary LED lamp and the first end of the second auxiliary LED lamp. The second end of the first auxiliary LED lamp and the second end of the second auxiliary LED lamp are both grounded.

6. The LED roadblock lighting circuit according to claim 5, wherein The cycle control module includes a sixth diode, a ninth resistor, a tenth resistor, a seventh diode, a fourth capacitor, a second timer, an eleventh resistor, a fifth switching tube, a fifth capacitor and a twelfth resistor; The emitter of the fifth switching transistor is connected to the eighth terminal of the second timer and the first terminal of the power supply interface, and is connected to the seventh terminal of the second timer, one end of the tenth resistor, and the anode of the sixth diode through the eleventh resistor. The cathode of the sixth diode is connected to the anode of the seventh diode, one end of the fourth capacitor, the sixth terminal and the second terminal of the second timer through the ninth resistor. The collector of the fifth switching transistor is connected to the fourth terminal of the second timer. The third terminal of the second timer is connected to the anode of the fifth diode and the second terminal of the seventh resistor. The base of the fifth switching transistor is connected to the static terminal of the first push-button switch and is grounded through the twelfth resistor. The fifth terminal of the second timer is grounded through the fifth capacitor. The other end of the fourth capacitor and the first terminal of the second timer are both grounded.

Images