CN210157433U - Long-life aviation obstruction beacon - Google Patents

Abstract

The utility model discloses a long-life aviation obstruction light, which is applied to the field of navigation light equipment, wherein the LED control part of the aviation obstruction light comprises a main control module, an auxiliary control module and an MCU chip; the circuit structure of the main control module comprises a triode Q1 of which the base level is controlled by U1, and a field effect transistor Q2 of which the grid is connected with the collector of the triode Q1; the circuit structure of the auxiliary control module comprises a triode Q3 of which the base electrode is controlled by U1, and a field effect transistor Q4 of which the grid electrode is connected with the collector electrode of the triode Q3; the utility model has the advantages of have two sets of control circuit, can perhaps control illumination LED's operating current in turn simultaneously, reduce illumination LED's temperature rise effect, prolong the life of lamps and lanterns.

Description

Long-life aviation obstruction beacon

Technical Field

The utility model relates to a light equipment field of helping hand to navigate especially relates to a long-life aviation obstruction beacon.

Background

The aviation obstruction light is also called navigation light, and is a special lamp for marking obstacles. Through the preset flash mode, the aviation obstruction light can display the outline of the structure, so that an aircraft driver can judge the height and the outline of the obstruction, the warning effect is achieved, and the flight safety is guaranteed.

Because the aviation obstruction light is required to be arranged on the top of a building with the height of more than 45 meters, the maintenance and replacement difficulty and the labor cost are high. When the lamp works for a long time, the service life of the LED lamp body can be greatly shortened due to the temperature rise effect, and the flying safety of the aircraft can be influenced if the lamp frequently goes wrong and stops working.

SUMMERY OF THE UTILITY MODEL

For solving among the prior art aviation obstruction lamp because the problem that the temperature rise leads to the life-span short during long-time during operation, the utility model provides a long-life aviation obstruction lamp can be through two sets of circuit control LED's operating current to reduce the influence of temperature to lamps and lanterns life-span.

The utility model discloses a concrete scheme as follows:

the long-life aviation obstruction light is characterized in that an LED control part of the aviation obstruction light comprises a main control module, an auxiliary control module and an MCU chip U1; the main control module and the auxiliary control module can be controlled based on the MCU chip U1, and simultaneously or alternatively control the working current of the lighting LEDs; the circuit structure of the main control module comprises a triode Q1 of which the base level is controlled by U1, and a field effect transistor Q2 of which the grid is connected with the collector of the triode Q1; the circuit structure of the secondary control module comprises a triode Q3 of which the base electrode is controlled by U1, and a field effect transistor Q4 of which the grid electrode is connected with the collector electrode of the triode Q3.

Furthermore, the emitting electrodes of the transistor Q1 and the transistor Q3 are grounded, and the collecting electrodes of the transistor Q1 and the transistor Q3 are connected with a pull-up resistor; the source electrodes of the field effect transistor Q2 and the field effect transistor Q4 are grounded, and the drain electrodes of the field effect transistor Q2 and the field effect transistor Q4 are connected with the cathode electrode of the lighting LED.

Further, a reverse-connected zener diode D2 is arranged between the gate and the source of the field effect transistor Q2, a reverse-connected zener diode D5 is arranged between the gate and the source of the field effect transistor Q4, and the zener diode D2 and the zener diode D5 are used for limiting voltage and preventing the insulating layer between the gate and the source of the field effect transistor Q2 and the field effect transistor Q4 from being broken down by high voltage.

Further, in the fieldDrain of the effect tube Q2 and operating voltage V of the illumination LED_LEDA rectifier diode D3 connected in reverse direction is arranged between the drain of the field effect transistor Q4 and the working voltage V of the lighting LED_LEDA rectifier diode D6 is arranged in reverse connection between them.

Further, the field effect transistor Q2 and the field effect transistor Q4 are N-channel enhancement type field effect transistors IRF530, the triode Q1 and the triode Q3 are S9014, the zener diode D2 and the diode D5 are IN4742, and the rectifier diode D3 and the diode D6 are IN 4007.

Further, the main control module further comprises: and an illuminant pin of the optical coupler U2 is respectively connected with the drain of the field effect transistor Q2 and the ground, and an illuminant pin of the optical coupler U2 is respectively connected with an MCU control pin and the ground.

Further, the optical coupler U2 is CNX 62.

Further, the MCU chip U1 is STC8F2K16S 2.

Further, the aircraft obstruction light has a light control module for controlling the conduction of an AC power, the light control module includes: the device comprises a light monitoring unit provided with a photodiode VD1 and a slide rheostat RP1, a first processing unit provided with a 555 timer U3, a second processing unit provided with an analog-to-digital conversion chip U4 and a singlechip U5, and a driving unit provided with a triode Q5, a farad capacitor C5 and a relay K1; the light monitoring unit is used for acquiring a first light sensing signal and sending the first light sensing signal to the first processing unit, and acquiring a second light sensing signal and sending the second light sensing signal to the second processing unit; the first light sensation signal is used for indicating that the external environment is daytime or night, and the second light sensation signal is used for indicating lightning light in the night; the first processing unit is used for sending a preset switching signal to the driving unit based on the first light sensing signal; the second processing unit is used for sending a preset switching signal to the driving unit based on the second light sensing signal; the driving unit is used for controlling the conduction of the AC power supply based on the preset switching signal.

Further, the power supply part of the aviation obstruction light comprises: a main power supply module based on MCU control, anThe auxiliary power supply module is electrically connected with the main power supply module; the main power supply module comprises an AC-DC chip U6, a DC-DC chip U7, an optical coupler U8, a relay K2, a triode Q6 and a triode Q7; the secondary power supply module comprises a transformer T1 and a rectifier bridge B1; the AC-DC chip U6 is used for converting AC commercial power into the working voltage V of the lighting circuit_LEDThe DC-DC chip U7 is used for converting the voltage V_LEDConvert the operating voltage VCC that is MCU chip U1 into, triode Q6 is used for controlling the luminophor of optical coupler U8 and switches on, optical coupler U8 is used for controlling triode Q7's base level, triode Q7 is used for controlling switching on of relay K2, the relay is used for control the AC commercial power of secondary power module switches on, the secondary power module is used for converting the AC commercial power into lighting circuit's operating voltage V when the AC commercial power switches on_LED。

After the technical scheme is adopted, the utility model has the advantages that as follows:

1. the utility model discloses an aviation obstruction light has two sets of control LED's working circuit, when one of them set of circuit goes out the problem, can use another set of circuit control LED work, prolongs the life of aviation obstruction light.

2. The utility model discloses can adjust LED's operating current based on two sets of LED working circuit alternate work or the mode of joint work, reduce circuit temperature rise effect, prolong the life of aviation obstruction beacon.

3. The utility model discloses have the light-operated module that control AC power switched on, can break off the aviation obstruction light and be connected between the AC power when perhaps having the lightning daytime, not only reduce the AC energy consumption, can also effectively prevent the thunderbolt, prolong the life of aviation obstruction light.

4. The utility model discloses an aviation obstruction light's power supply unit adopts dual supply design, only main power source work under the normal operating condition, and auxiliary power source automatic start when the main power source trouble prolongs the life of aviation obstruction light.

Drawings

Fig. 1 is a schematic diagram of an LED control portion of the present invention;

FIG. 2 is a schematic diagram of the main control module circuit structure of the present invention;

FIG. 3 is a schematic diagram of the circuit structure of the sub-control module of the present invention;

FIG. 4 is a schematic diagram of the circuit structure of the MCU minimum system of the present invention;

fig. 5 is a schematic diagram of the circuit structure of the light control part of the present invention;

fig. 6 is a schematic diagram of the circuit structure of the power supply part of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. The present invention will be described in detail with reference to the accompanying drawings and examples.

As shown in fig. 1, the LED control part of the present invention includes a main control module, a sub-control module and an MCU chip U1; the master control module and the auxiliary control module can be controlled based on the MCU chip U1, and simultaneously or alternatively control the working current of the lighting LEDs.

It can be understood that, because the aviation obstruction light usually keeps working for a long time, the light-emitting body of the LED will generate a temperature rise effect, and the temperature in the lamp cover thereof will continuously rise, thereby affecting the service life of each circuit electronic component. Therefore, the novel LED temperature control circuit is expected to control the working current of the LED through the main control circuit and the auxiliary control circuit, so that the aim of reducing the working temperature of the LED is fulfilled.

Fig. 2 shows a circuit schematic diagram of the novel master control module and fig. 3 shows a circuit schematic diagram of the novel slave control module, wherein J1 and J2 are sockets connected to the anode and cathode of the LED, and LEDOUT1 and LEDOUT2 are control levels sent by the MCU control pins.

It can be understood that the main control module is the same as a part of the circuit of the sub-control module, and specifically, the circuit structure of the main control module mainly comprises a triode Q1 of which the base level is controlled by U1, and a field effect transistor Q2 of which the gate is connected with the collector of the triode Q1; the circuit structure of the secondary control module comprises a triode Q3 of which the base electrode is controlled by U1, and a field effect transistor Q4 of which the grid electrode is connected with the collector electrode of the triode Q3.

Furthermore, the emitting electrodes of the triode Q1 and the triode Q3 are grounded, and the collecting electrodes of the triode Q1 and the triode Q3 are connected with a pull-up resistor; the sources of the field effect transistor Q2 and the field effect transistor Q4 are grounded, and the drains of the field effect transistor Q2 and the field effect transistor Q4 are connected with the cathode of the lighting LED.

Understandably, in the present invention, since the socket connected to the cathode of the LED is connected to the drain D of the fet, the drain current I is controlled by the fet_DThe magnitude can realize the control of the working current of the LED, and the drain current I of the field effect transistor_DVoltage V between gate and source_GSIn an exponential relationship. Here, the transistor Q1 and the transistor Q3 connected to the gate of the field effect transistor can amplify the Pulse Width Modulation (PWM) signals sent from the MCU control pins LEDOUT1 and LEDOUT2, that is, the MCU can control the operating current of the illumination LED.

Specifically, the pulse width modulation technique may include phase voltage control PWM, pulse width PWM, random PWM, sinusoidal PWM, line voltage control PWM, and the like, which are not described herein again.

It should be noted that, in the present invention, both the main control circuit and the secondary control circuit are connected to the MCU control pins LEDOUT1 and LEDOUT2, which has two advantages, that is, when the main control circuit fails, the MCU can still control the operating current of the LED through the secondary control circuit; secondly, when the master-slave control circuit all normally works, can realize the alternative or simultaneous working of master-slave control circuit based on MCU's control pin LEDOUT1 and LEDOUT2, realize the various adjustment to LED operating current, reach this novel purpose that reduces the LED temperature rise.

Specifically, in a specific implementation mode, the real-time temperature of the LED can be detected by placing a temperature detection device around the LED and sent to the MCU, and when the temperature of the LED obtained by the MCU reaches a threshold value, the working current of the LED can be reduced by outputting a PWM level to reduce the power consumption of the LED, so that the LED is gradually cooled; in another implementation mode, the main control module and the auxiliary control module can work alternately or simultaneously to shunt the working current of the LED, and the heat dissipation area of the circuit is enlarged to cool. On the other hand, the main control circuit and the auxiliary control circuit alternately control the LEDs, and the service life of the control circuit can be prolonged.

Under normal working conditions, the main control module is preferentially used for controlling the working current of the LED.

It is understood that a reverse connected zener diode D2 is provided between the gate and source of fet Q2, and correspondingly, a reverse connected zener diode D5 is provided between the gate and source of fet Q4, where zener diode D2 and zener diode D5 are used to limit the voltage and prevent the high voltage breakdown of the insulating layer between the gate and source of fets Q2 and Q4.

Understandably, the drain of the field effect transistor Q2 and the operating voltage V of the illumination LED_LEDA rectifier diode D3 connected in reverse direction is arranged between the drain of the field effect tube Q4 and the working voltage V of the lighting LED_LEDA rectifier diode D6 is arranged in reverse connection between them.

Specifically, the field-effect transistor Q2 and the field-effect transistor Q4 are N-channel enhancement type field-effect transistors IRF530, the transistor Q1 and the transistor Q3 are S9014, the zener diode D2 and the diode D5 are IN4742, and the rectifier diode D3 and the diode D6 are IN 4007.

Optionally, the fet Q2, the fet Q4, the zener diode D2, the zener diode D5, the transistor Q1, and the transistor Q3 may be of other types, and are not described herein again.

Further, compared with the secondary control module, the circuit structure of the master control module further comprises an optical coupler U2, specifically, the light emitter pins of the optical coupler U2 are respectively connected with the drain of the field effect transistor Q2 and the ground, and the light receiver pins of the optical coupler U2 are respectively connected with the MCU control pin P1.7 and the ground. Thus, when the aviation obstruction light starts to work, the priority of the main control module for LED control can be ensured based on the P1.7 control pin of the MCU.

Preferably, the optical coupler U2 is CNX 62. Other possible versions of the optocoupler U2 will not be described in detail herein.

Referring to fig. 4, the novel MCU minimum system circuit structure schematic diagram of the present invention is shown, wherein the LEDs 1 and 2 are download indicator lamps for feeding back the burning status of the MCU preset program, and the MCU is connected to the J3 socket via the pins P3.0 and P3.1, so that the program can be downloaded via the J3 socket. Seven pins of the MCU, such as P3.0-P3.7, are connected with the resistor Res1, and the other end of the resistor Res1 is connected with a voltage VCC for providing pull-up driving support. The MCU's P5.4 pin outputs LEDOUT1 control level, and P5.5 pin outputs LEDOUT2 control level. And filter capacitors C1 and C2 are arranged between a VCC power supply pin and a ground pin of the MCU to filter high-frequency and low-frequency noises respectively.

Obviously, the utility model discloses an aviation obstruction light has two sets of control LED's working circuit, consequently can adjust LED's operating current based on two sets of LED working circuit work in turn or the mode of joint work, reduces circuit temperature rise effect to when one of them set of circuit goes wrong, can use another set of circuit control LED work, thereby prolong aviation obstruction light's life.

Understandably, the circuit structure of other partial modules in the novel aviation obstruction light is also favorable for prolonging the service life of the aviation obstruction light.

Referring to fig. 5, the circuit structure diagram of the light-operated part of the utility model is shown, understandably, the novel aviation obstruction light has the light-operated module that the control AC power supply switches on in order to realize the energy-saving effect.

Specifically, the novel light control module comprises a light monitoring unit, a first processing unit, a second processing unit and a driving unit; the optical monitoring unit is used for acquiring a first light sensing signal and sending the first light sensing signal to the first processing unit, and acquiring a second light sensing signal and sending the second light sensing signal to the second processing unit; specifically, the first light sensation signal is used for indicating that the external environment is daytime or nighttime, and the second light sensation signal is used for indicating lightning light in the nighttime; the first processing unit is used for sending a preset switching signal to the driving unit based on the first light sensing signal, and the second processing unit is used for sending a preset switching signal to the driving unit based on the second light sensing signal; the driving unit is used for controlling the conduction of the AC power supply based on a predetermined switching signal.

It can be understood that the light monitoring unit mainly obtains the light change signal of the external environment through the photosensitive sensor, specifically, obtains a first light sensing signal for indicating that the external environment is day or night, and obtains a second light sensing signal for indicating that the flashing light appears in the night.

Optionally, the first light sensing signal and the second light sensing signal may be from the same light sensor in the light monitoring unit, or from different light sensors in the light monitoring unit, that is, only one light sensor may be disposed in the light monitoring unit to perform data acquisition of the first light sensing signal and the second light sensing signal, or different groups of light sensors may be disposed in the light monitoring unit to perform data acquisition of the first light sensing signal and the second light sensing signal.

It is understood that the present novel photosensor is specifically a photodiode. The photodiode is similar to a semiconductor diode in structure, and the tube core is a PN junction with photosensitive characteristics and has unidirectional conductivity. In fig. 5, a circle 1 of a connection point between RP1 and R1 indicates an electrical connection position 1 between the output terminal of the photo-monitoring unit circuit and the input terminal of the first processing unit circuit, and a circle 2 of a connection point to R12 indicates an electrical connection position 2 between the output terminal of the first processing unit circuit and the driving unit circuit. The photosensitive diode VD1 is reversely connected with a working voltage VCC, no ambient light exists at night, only small saturated reverse leakage current, namely dark current, exists in the VD1, and the VD1 is in a cut-off state at the moment; in daytime, the ambient light is sufficient, at this time, the saturated reverse leakage current in the VD1 is greatly increased, and finally the VD1 is turned on to form a photocurrent, and the magnitude of the photocurrent has a direct relationship with the intensity of the ambient light, that is, the magnitude of the current on the branch circuit related to the VD1 has a direct relationship with the intensity of the ambient light.

Specifically, the photodiode VD1 may be a 2CU type, 2DU type, HPD type, SPD type, SBC type, BS type, and PD type photodiode, including: 2CU5, SPDI752, PD438, etc., which are not described herein.

It can be understood that a resistor R10 connected in series with VD1 is arranged in the novel optical monitoring unit, and is used for current-limiting protection VD1 from being burnt by large current.

It can be understood that the novel light monitoring unit is also provided with a slide rheostat RP1 connected with the low-potential end of the photosensitive diode VD1 in series, and the slide rheostat RP1 can realize the adjustment effect on the sensitivity of the photosensitive diode VD1 by changing the total resistance value of the VD1 series.

Optionally, the VD1 can also use a photo-resistor or a photo-transistor, and the detailed circuit changes caused by the change of the model selection of the VD1 are not described herein again.

It will be appreciated that the first processing unit includes a 555 timer U3. Specifically, U3 is in monostable mode, operating as a one-shot pulse generator.

It can be understood that the first processing unit of the present invention further includes a grounded capacitor C3 connected to the input pin of U3, and the capacitor C3 is used to delay the pulse signal obtained from the input pin of U3, so that U3 triggers a more stable PWM waveform.

It is understood that the first processing unit may output a corresponding switch signal to the driving unit by receiving the light sensing signal related to the intensity of the external light. Specifically, when the external environment is daytime, the photodiode of the optical monitoring unit is switched from an off state to an on state, the potential at the connecting point circle 1 is increased along with the increase of the light intensity, and when the level of the 6 th pin of the 555 chip is greater than or equal to the working voltage VCC of 2/3, the 3 rd pin of the 555 chip outputs a low level; correspondingly, when the external environment is at night, the photosensitive diode is in a conducting state to a cut-off state, the potential at the connecting point circle 1 is reduced along with the reduction of the light intensity, and when the level of the 2 nd pin of the 555 timer is less than or equal to the working voltage VCC of 1/3, the 3 rd pin of the 555 chip outputs high level.

It can be understood that the 555 timer is lower in price than a single chip microcomputer or a microprocessor, so that the 555 timer is taken as a preferred scheme of the novel type. Optionally, this novel first processing unit can also use other types of singlechip or microprocessor as the chip of handling first light sense signal, and this is no longer repeated here.

It can be understood that the second processing unit of the present invention includes an analog-to-digital conversion chip U4 and a single chip microcomputer U5, wherein a connection point circle 1 connected to the 26 th pin of U4 represents an electrical connection position 1 between the output end of the optical monitoring unit circuit and the input end of the first processing unit circuit, and a connection point circle 3 connected to the 7 th pin of U5 represents an electrical connection position 3 between the output end of the first processing unit circuit and the driving unit circuit.

Specifically, in the second processing unit of the present invention, U4 is an ADC0809 chip, and U5 is an STC11F02E chip. A 26 th pin of U4 is used as an input pin for receiving the analog quantity output by the optical monitoring unit; the 6 th pin and the 22 nd pin of the U4 are connected with the 12 th pin of the U5 and used for receiving an AD conversion starting signal sent by the U5; the 7 th pin of U4 is connected with the 13 th pin of U5 and is used for receiving an AD conversion end signal sent by U5; the 9 th pin of the U4 is connected with the 14 th pin of the U5 and is used for receiving a transmission permission signal sent by the U5; the 10 th pin of the U4 is connected with the 15 th pin of the U5 and is used for receiving a clock signal CLK sent by the U5, generally, the clock requirement of the ADC0809 chip is 500KHz, and the problem can also be solved by an external crystal oscillator; the 21 st pin of U4 is connected to the 16 th pin of U5, and is used for transmitting AD-converted data to U5.

It should be noted that the pin numbers P1.0-P1.4 in fig. 5 refer to the pins of U5, and are not related to MCU pins. And those skilled in the art should know that there is no data connection between the novel light control module and the MCU chip U1.

It is understood that the second processing unit may output a corresponding switch signal to the driving unit by receiving the light sensing signal related to the external light intensity, and specifically, send a pulse to the driving unit based on the short-time light intensity information change, the U4 may obtain the corresponding light intensity information according to the analog quantity received by the input pin and send the corresponding light intensity information to the U5, and the U5 sends the pulse level corresponding to the digital quantity parameter to the driving unit according to a preset algorithm.

For example, it is assumed that the ambient light intensity information corresponding to the night is 0, and the ambient light intensity corresponding to the occurrence of lightning is 100; when no lightning exists, the environment is kept dark, the U4 is set to send a digital signal of "0000000" to the U5 when the acquisition ambient light intensity is 0, and send a digital signal of "0000001" to the U5 when the acquisition ambient light intensity change is 100; and U5 is set to send a low level pulse to the drive unit upon receiving the digital signal "0000001" and a high level pulse to the drive unit upon receiving the digital signal "0000000", thus enabling the sending of a switching signal to the drive unit based on ambient light changes in the night.

It can be understood that in the novel circuit structure, the output of the U5 adopts a strong push-pull mode, so that the 7 th pin of the U5 is connected in series with the resistor R15 with the resistance value of 15K as an output pin. Optionally, the output of U5 may also adopt a weak pull-up mode, in which a pull-up resistor of 10K is added.

Optionally, U4 and U5 may be other types and circuit structures that can be implemented, and are not described here.

It can be understood that the novel driving unit comprises a triode Q5, a pull-method capacitor C5 and a relay K1; the base set of the triode Q5 is connected with the output ends of the first processing unit and the second processing unit, the collector of the triode Q5 is connected with the control end of the relay K1, the emission set of the triode Q5 is grounded in parallel with the negative electrode of the Czochralski capacitor C5, and the positive electrode of the Czochralski capacitor C5 is connected with the working voltage VCC; the transistor Q5 is used for controlling the relay K1 to be opened or closed based on a preset switching signal; relay K1 is used to turn on the AC power when closed.

Understandably, when the electric connection position 2 and/or 3 is high level, the triode Q5 is conducted, the relay K1 is attracted, and therefore the AC power supply is conducted, and the LED lamp of the aviation obstruction light can work; when the electric connection position 2 and/or 3 is low level, the triode Q5 is cut off, the relay K1 is disconnected, the AC power supply is not conducted, and the LED lamp of the aviation obstruction light does not work.

It should be noted that, since the first processing unit directly outputs the high-low level switch signal according to the level threshold value at the electrical connection position 1, and the second processing unit performs the predefined processing on the level at the electrical connection position 1 to obtain the corresponding light intensity information, so as to output the pulse level switch, that is, the switch signal generated by the first processing unit and the switch signal generated by the second processing unit are based on different types of parameter information, and the first processing unit and the second processing unit are both set to output the high level when there is light and output the low level when there is no light, but the responses to the light intensities are different, so that the situation of collision does not occur. For example, at night, the photodiode is kept in an off state, that is, the electrical connection position 1 is kept at a low level, at this time, the first processing unit outputs a high level to turn on the transistor Q5, the AC power supply is turned on, and the lamp starts to work; when lightning appears in the night, the duration of light is short, the intensity is insufficient, the first processing unit may not respond to the lightning, the second processing unit can output low level to cut off the triode Q5 when the light intensity information reaches the preset definition based on the preset definition, the AC power supply is disconnected at the moment, the protection device cannot attract the lightning, and after the lightning day is over, the first processing unit can control the AC power supply to be conducted again due to continuous no light, so that the device works normally.

It can be understood that the novel operating voltage VCC is obtained by AC power conversion, and further, when the relay K1 is closed, the operating voltage VCC can charge the farad capacitor C5. The specific circuit for implementing the voltage conversion and the specific operation of the obstruction light are not described herein again.

It will be appreciated that the pull-through capacitor C5 is used to provide the operating voltage VCC to the photo-control module when the relay K1 is open. Specifically, the capacitance of the farad capacitor C5 is greater than 240F, so that the normal operation of the light control module can be ensured.

Further, a diode D1 connected in the reverse direction is disposed between the collector of the transistor Q5 and the operating voltage VCC, and is used for protecting the Q5 from the reverse current breakdown caused by the conduction of the K1.

Specifically, the transistor Q5 has a model S9614, and the diode D7 has a model IN 4148.

Optionally, the transistor Q5 and the diode D7 may be of other types, which are not described herein.

Obviously, the utility model discloses the light-operated module that steerable AC power switched on can break off the connection between aviation obstruction light and the AC power when daytime or have the lightning, so not only can reduce the AC energy consumption, can also effectively prevent the thunderbolt, can prolong the life of aviation obstruction light like this.

Referring to fig. 6, the utility model discloses power supply unit's circuit structure schematic diagram, understandably, the utility model discloses a power supply unit can prolong aviation obstruction beacon's life through dual power supply design.

It can be understood that the power supply part of the novel aviation obstruction light comprises: the power supply comprises a main power supply module and an auxiliary power supply module electrically connected with the main power supply module. Understandably, this neotype main power module can carry out the break-make based on MCU's control, and secondary power module does not link to each other with MCU, promptly, secondary power's start-up only is relevant with main power module's state, and when main power module was out of work, secondary power module started, supplies power for the lamp body of barrier lamp. Obviously, compare in the scheme that major-minor power all is based on MCU control, this neotype scheme has guaranteed that MCU can avoid because MCU trouble leads to the unable normal possibility that starts of major-minor power all to major power control's basis on.

Specifically, the novel main power supply module comprises an AC-DC chip U6, a DC-DC chip U7, an optical coupler U8, a relay K2, a triode Q6 and a triode Q7.

Understandably, an AC-DC chip U6 is used for AConverting the C commercial power into the working voltage V of the lighting circuit_LEDAnd the aviation obstruction light can realize the illumination function.

Specifically, the model of U6 is SP6007 chip, and the two-phase AC input pins of U6 are respectively connected with the L phase and N phase of AC commercial power and output direct current V_LED。

Alternatively, U6 may be another type of chip, such as XD308H, TMF0165, etc., or may be an ac to dc transformer. For other types of voltage conversion devices and corresponding specific circuit structures, no further description is given here.

Further, between the L phase and the N phase, a varistor RT1 for protecting U6 from breakdown by a large current is also provided. Obviously, the voltage dependent resistor, as a voltage limiting protection element, can clamp voltage when abnormal fluctuation occurs in AC mains, especially when U6 is subjected to overvoltage, and absorb redundant current to protect U6 from overvoltage breakdown.

Specifically, the model number of the piezoresistor RT1 is 7D 471. Other models may optionally be selected by RT1 and will not be described further herein.

Further, a reverse-connected transient suppression diode D8 for protecting the rear pole circuit of the U6 from breakdown is also arranged between the positive and negative pole output ends of the U6.

Specifically, model number of D8 is P6KE 12A. Optionally, D8 may also be another type of diode, which is not described herein.

Further, the DC-DC chip U7 converts V_LEDAnd converting the voltage into the working voltage VCC of the MCU to realize power supply to the MCU. It is understood that since the operating voltage of the MCU is often differentiated from the operating voltage of the barrier lamp lighting circuit, U7 is required for voltage conversion.

In particular, V in the present invention_LEDAt 12 volts and VCC at 5 volts. Therefore, the DC-DC chip U7 has the function of reducing voltage. At V_LEDAnd U7, a diode IN5408 can be provided for V_LEDAnd (4) filtering and rectifying.

Specifically, the model of the DC-DC chip U7 is 78L05 chip.

Understandably, if V_LEDAnd when the voltage is less than or equal to VCC, the DC-DC chip U7 may also be a chip of another type with a voltage boosting or stabilizing function, and details of the U7 related basic circuit and the specific implementation circuit structures of other possible schemes are not described herein again.

Further, the circuit structure of the main power supply module further comprises an optical coupler U8, a relay K2, a transistor Q6 and a transistor Q7, so as to realize switching between the main power supply and the auxiliary power supply. Specifically, the light emitter positive electrode of the optical coupler U8 is connected with V_LEDThe negative pole of the luminophor is connected with the collector of Q6, and the positive pole of the photoreceptor is connected with V_LEDThe negative electrode of the photoreceptor is connected with a Q7 base set; and the base set of the transistor Q6 is connected with the P1.6 control pin of the MCU, and the collector of the transistor Q7 is connected with the control pin of the relay K2. Obviously, the Q6 can be turned on when the level of the control pin of the MCU is high, and then the light emitter of the optocoupler U8 is lighted, the light receptor of U8 is turned on, so that the Q7 is also turned on, and the on-state of Q7 can control the open and close of the relay K2.

Specifically, in the present novel model, the optical coupler U8 is CNX 62.

Optionally, the optical coupler U8 may be another type of optical coupler, which is not described herein.

Further, the main power supply module also comprises a collector and a voltage V which are reversely connected with a relay K2_LEDDiode D10 in between, and forward connected to the collector of relay K2 and V_LEDLight emitting diode D9 in between.

It will be appreciated that diode D10 serves to protect Q7 from reverse current breakdown. Specifically, the diode D10 of the present new model is model IN 4148.

It will be appreciated that the led D9 is used to indicate whether the operating condition of the novel main power supply module is normal: if the main power supply module works normally, V_LEDSupplying power to keep D9 in a light-emitting state; on the contrary, if the main power module has a problem, then V cannot be output_LEDPower is applied and D9 is not active.

It will be appreciated that the led D9 may be replaced by other types of light emitting elements to provide an indication of the operating status of the main power supply module. For other specific implementation processes, detailed descriptions are omitted here.

Further, the circuit structure of the main power supply module further includes a current limiting resistor R21 connected in series with the light emitting diode D9, and R21 is used for protecting the light emitting diode D9 from being burnt by overcurrent.

It is understood that one end of the relay K2 is connected to the L-phase and N-phase of the AC mains, and the other end is connected to the L-phase and N-phase of the power supply to the secondary power supply module, that is, the relay K2 can control the AC mains of the secondary power supply module to be conducted.

It can be understood that the novel secondary power supply module comprises a transformer T1 and a rectifier bridge B1, and can directly convert AC mains supply into low dc voltage required by the barrier lamp lighting circuit.

It can understand, have the electricity to be connected between this neotype auxiliary power module and the main power module, specifically, be that the two-phase input of transformer T1 of auxiliary power module meets with relay K2 one end output of main power module, under relay K2 control, AC commercial power can be input to transformer T1 input and the voltage reduction is handled, rectifier bridge B1 converts the alternating voltage after the step-down into lighting circuit's operating voltage V_LEDAt the same time, V_LEDAnd is also connected with the U7 of the main power supply module and is used for ensuring the output of the MCU working voltage VCC when the main power supply module fails.

In particular, V_LEDThe voltage value of (2) is 12V, so that the U7 can be directly used for converting VCC without a redundant voltage conversion circuit.

Optionally, in one realisation, a main power output V may be provided_LEDAnd D3 and a secondary power supply output V_LEDUnlike the path current between D3, D3 may select a bi-color LED to indicate the operation status of the primary power module and the secondary power module, respectively, such as V generated by D3 in the primary power_LEDRed light under operation, V generated by secondary power supply_LEDThe working is green light, so that better indication effect can be realized.

It can be understood that the working principle of the power supply part of the novel aviation obstruction light is as follows:

under normal working state, relay K2 makes secondary power supply moduleThe AC mains supply of (1) is turned on by default; at the moment, the main power supply and the auxiliary power supply are connected with AC commercial power; u6 output V_LEDOperating the lighting circuit; the U7 outputs a voltage VCC for supplying power to the MCU; the MCU sends a high level to the Q6 through a P1.6 pin according to a preset program to enable the Q6 to be conducted; the collector of Q6 pulls down the electric potential to make U8 turn on, then make Q7 turn on and control the actuation of relay K2; when K2 is engaged, the AC mains supply controlling the secondary power supply module is disconnected.

When the main power supply module fails and cannot work, V is lost_LEDAnd VCC power supply, MCU can not work, thus make the base pin of Q6 receive the low level; q6 is cut off, so that the output end of the optical coupler U8 outputs low level; q7 cutoff; the relay K2 changes the conduction direction, makes the AC commercial power of secondary power module switch on, plays the effect for barrier lamp power supply.

Therefore, after the novel aviation obstruction light is connected with the AC mains supply, only the main power supply module works, and after the main power supply module goes wrong, the auxiliary power supply module can be automatically started, so that the energy consumption waste caused by the simultaneous working of the double power supply modules is avoided, and the influence of MCU failure on the starting of the auxiliary power supply module is not needed to be worried.

Obviously, the utility model discloses a power supply unit adopts dual supply design, and only main power source work under the normal operating condition, auxiliary power source automatic start when the main power source trouble can effectively prolong the life of aviation obstruction beacon like this.

The present invention is not limited to the above-described embodiments, and it is to be understood that modifications and variations can be made by one of ordinary skill in the art without creative efforts in accordance with the concept of the present invention. In summary, the technical solutions available to those skilled in the art through logic analysis, reasoning or limited experiments based on the present invention are all within the scope of protection defined by the claims.

Claims (10)

1. The long-life aviation obstruction light is characterized in that an LED control part of the aviation obstruction light comprises a main control module, an auxiliary control module and an MCU chip U1; the main control module and the auxiliary control module can be controlled based on the MCU chip U1, and simultaneously or alternatively control the working current of the lighting LEDs; the circuit structure of the main control module comprises a triode Q1 of which the base level is controlled by U1, and a field effect transistor Q2 of which the grid is connected with the collector of the triode Q1; the circuit structure of the secondary control module comprises a triode Q3 of which the base electrode is controlled by U1, and a field effect transistor Q4 of which the grid electrode is connected with the collector electrode of the triode Q3.

2. The aircraft obstruction light of claim 1, wherein the emitters of the transistor Q1 and the transistor Q3 are grounded, and the collectors of the transistor Q1 and the transistor Q3 are connected to a pull-up resistor; the source electrodes of the field effect transistor Q2 and the field effect transistor Q4 are grounded, and the drain electrodes of the field effect transistor Q2 and the field effect transistor Q4 are connected with the cathode electrode of the lighting LED.

3. The aircraft obstruction light of claim 2, wherein a reverse connected zener diode D2 is provided between the gate and the source of the field effect Q2, a reverse connected zener diode D5 is provided between the gate and the source of the field effect Q4, and the zener diode D2 and the zener diode D5 are used for limiting voltage and preventing the insulation layer between the gate and the source of the field effect Q2 and the field effect Q4 from being broken down by high voltage.

4. The aircraft obstruction light of claim 3, wherein a reverse-connected rectifier diode D3 is provided between the drain of the FET Q2 and the operating voltage VLED of the illumination LED, and a reverse-connected rectifier diode D6 is provided between the drain of the FET Q4 and the operating voltage VLED of the illumination LED.

5. The aircraft obstruction light of claim 4, wherein the fets Q2 and Q4 are N-channel enhancement mode fets IRF530, the transistor Q1 and Q3 are S9014, the zener diode D2 and the diode D5 are IN4742, and the rectifier diode D3 and the diode D6 are IN 4007.

6. The aircraft obstruction light of claim 1, wherein the main control module further comprises: and an illuminant pin of the optical coupler U2 is respectively connected with the drain of the field effect transistor Q2 and the ground, and an illuminant pin of the optical coupler U2 is respectively connected with an MCU control pin and the ground.

7. The aircraft obstruction light of claim 6, wherein the optical coupler U2 is CNX 62.

8. The aircraft obstruction light of claim 1, wherein the MCU chip U1 is STC8F2K16S 2.

9. The aircraft obstruction light of claim 1, wherein the aircraft obstruction light has a light control module that controls the conduction of an AC power source, the light control module comprising: the device comprises a light monitoring unit provided with a photodiode VD1 and a slide rheostat RP1, a first processing unit provided with a 555 timer U3, a second processing unit provided with an analog-to-digital conversion chip U4 and a singlechip U5, and a driving unit provided with a triode Q5, a farad capacitor C5 and a relay K1; the light monitoring unit is used for acquiring a first light sensing signal and sending the first light sensing signal to the first processing unit, and acquiring a second light sensing signal and sending the second light sensing signal to the second processing unit; the first light sensation signal is used for indicating that the external environment is daytime or night, and the second light sensation signal is used for indicating lightning light in the night; the first processing unit is used for sending a preset switching signal to the driving unit based on the first light sensing signal; the second processing unit is used for sending a preset switching signal to the driving unit based on the second light sensing signal; the driving unit is used for controlling the conduction of the AC power supply based on the preset switching signal.

10. The aviation obstruction light of claim 1, wherein the power supply portion of the aviation obstruction light comprises: the MCU control-based power supply system comprises a main power supply module based on MCU control and an auxiliary power supply module electrically connected with the main power supply module; the main power supply module comprises an AC-DC chip U6, a DC-DC chip U7, an optical coupler U8, a relay K2, a triode Q6 and a triode Q7; the secondary power supply module comprises a transformer T1 and a rectifier bridge B1; AC-DC chip U6 is used for converting the AC commercial power into lighting circuit's operating voltage V LED, DC-DC chip U7 is used for converting voltage V LED into MCU chip U1's operating voltage VCC, triode Q6 is used for controlling the luminous body of optical coupler U8 and switches on, optical coupler U8 is used for controlling triode Q7's base level, triode Q7 is used for controlling switching on of relay K2, the relay is used for controlling the AC commercial power of secondary power module switches on, secondary power module is used for converting the AC commercial power into lighting circuit's operating voltage V LED when the AC commercial power switches on.

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