CN213028658U - Municipal administration illumination energy-saving control system - Google Patents
Municipal administration illumination energy-saving control system Download PDFInfo
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- CN213028658U CN213028658U CN202022396984.3U CN202022396984U CN213028658U CN 213028658 U CN213028658 U CN 213028658U CN 202022396984 U CN202022396984 U CN 202022396984U CN 213028658 U CN213028658 U CN 213028658U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The application relates to a municipal lighting energy-saving control system, which relates to the field of lighting control technology and comprises a power module, a solar energy power supply module and a power module, wherein the power module comprises a solar energy power supply module; the charging protection module is connected with the solar power supply module; the solar power supply module includes: solar panel BT 1; a battery BT2 having a negative electrode connected to the negative electrode of the solar cell panel BT 1; and a first diode D1, the anode of which is connected to the anode of the solar cell panel BT1, and the cathode of which is connected to the anode of the battery BT 2. When the solar lamp is illuminated, the solar cell panel BT1 converts light energy into electric energy, the storage battery BT2 is charged through the first diode D1, and the storage battery BT2 provides a power supply for the lamp; the charging protection module protects the storage battery BT2 during overvoltage; the battery BT2 provides power for the lamp. This application has the effect that reduces the influence of municipal power supply trouble to lamps and lanterns and reduce the consumption of commercial power.
Description
Technical Field
The application relates to the field of lighting control technology, in particular to a municipal lighting energy-saving control system.
Background
With the development of cities in China, the prosperity of economy, the progress of society and the requirements of people on improving the living standard and the environmental quality, urban road lighting and urban night scene lighting become important work in urban planning, construction and management.
The patent with the publication number of CN208107871U discloses an LED street lamp, which comprises a lamp post and a lamp holder arranged at the upper end of the lamp post, wherein the lamp holder comprises a shell and an LED lamp arranged in the shell, and the LED lamp is arranged in the shell through a base.
With respect to the related art among the above, there are the following drawbacks: the lamp is powered by a municipal power supply network, and normal use and relative energy consumption of the street lamp are influenced when the municipal power supply network fails.
SUMMERY OF THE UTILITY MODEL
In order to reduce the influence of municipal power supply trouble to the street lamp and reduce the consumption of commercial power, this application provides a municipal lighting energy-saving control system.
The application provides a municipal administration illumination energy-saving control system adopts following technical scheme:
a municipal lighting energy-saving control system comprising:
the power supply module comprises a solar power supply module for supplying power to the lamp; and
the charging protection module is connected with the solar power supply module and is used for charging protection of solar energy;
the solar power supply module includes:
solar panel BT 1;
a battery BT2 having a negative electrode connected to the negative electrode of the solar cell panel BT 1; and the number of the first and second groups,
the positive electrode of the first diode D1 is connected to the positive electrode of the solar cell panel BT1, and the negative electrode thereof is connected to the positive electrode of the battery BT 2.
By adopting the technical scheme, when the lamp is illuminated, the solar cell panel BT1 converts light energy into electric energy, the storage battery BT2 is charged through the first diode D1, and the storage battery BT2 provides a power supply for the lamp; the charging protection module protects the storage battery BT2 during overvoltage; the storage battery BT2 provides power for the lamp, so that the influence of municipal power supply faults on the street lamp is reduced, the consumption of commercial power is reduced, and energy is saved.
Optionally, the charging protection module includes:
a first triode Q1 which is an NPN type triode, and the collector electrode of the first triode Q1 is connected with the negative electrode of the storage battery BT 2;
a first resistor R1, one end of which is connected with the positive electrode of the battery BT2 and the other end of which is connected with the emitter of the first triode Q1;
the cathode of the second diode D2 is connected with the base of the first triode Q1; and the number of the first and second groups,
and the cathode of the voltage regulator tube D3 is connected with the emitter of the first triode Q1, and the anode of the voltage regulator tube D3 is connected with the anode of the second diode D2.
By adopting the technical scheme, in the initial charging stage, the voltage of the storage battery BT2 is increased, the voltage reaches the reverse breakdown voltage of the voltage regulator tube D3 when the storage battery BT2 is fully charged, the voltage regulator tube D3 is conducted with the second diode D2, at the moment, the first triode Q1 is also conducted and consumes the voltage of the storage battery BT2, the voltage of the storage battery BT2 is reduced, the storage battery BT2 is in a trickle charge state when fully charged, and the charging protection of the storage battery BT2 is realized.
Optionally, still include the sensitization control module, it connects solar power module for the outdoor luminous intensity of response and output sensitization control signal, the sensitization control module includes:
a photoresistor R7, one end of which is grounded;
a fourth triode Q4 which is an NPN type triode, the base of which is connected to the connection point of the fifth resistor R5 and the battery BT2, and the emitter of which is grounded;
a sixth resistor R6 has one end connected to the positive electrode of the battery BT2 and the other end connected to the other end of the photoresistor R7.
A fifth triode Q5 which is a PNP type triode, and the emitter electrode of the fifth triode Q5 is connected with the anode of the storage battery BT 2; and the number of the first and second groups,
a ninth resistor R9, one end of which is connected to the base of the fifth transistor Q5 and the other end of which is connected to the collector of the fourth transistor Q4;
the connection point of the fourth transistor Q4 and the ninth resistor R9 serves as the output end out1 of the light sensing control module, and the output end out1 of the light sensing control module is connected in series with the lamp.
By adopting the technical scheme, a worker can set the photosensitive threshold by using the sixth resistor R6; in a normal state, the output end out1 of the light sensing control module is in an open circuit, and the lamp is turned off; when the outdoor light intensity is weakened, the resistance value of the photoresistor R7 is increased along with the weakening of the light intensity, and the partial voltage obtained by the base electrode of the fourth triode Q4 is also increased; because the emitter of the light sensing control module is grounded, when Ube is greater than the conducting voltage, the fourth triode Q4 is conducted, the base of the fifth triode Q5 is divided and also conducted, the output end out1 of the light sensing control module outputs a high-level light sensing control signal, and the lamp is turned on.
Optionally, the light sensing control module further includes:
the eighth resistor R8 has one end connected to the base of the fourth transistor Q4 and the other end grounded.
By adopting the technical scheme, an overdischarge phenomenon may occur when the battery BT2 is insufficiently charged, which may damage the battery, and the voltage division of the eighth resistor R8 may cause the base potential of the fourth transistor Q4 to be insufficient to turn on the fourth transistor Q4, thereby implementing the overdischarge protection of the battery BT 2.
Optionally, the lighting device further includes a driving module, connected in series between the output end of the photosensitive control module and the lamp, for receiving and responding to the photosensitive signal and driving the lamp to emit light, where the driving module includes:
a sixth triode Q6 which is a PNP type triode, wherein the emitter of the sixth triode Q6 is connected with the collector of the fifth triode Q5;
a tenth resistor R10, one end of which is connected to the output end out1 of the light sensing control module, and the other end of which is connected to the base of the sixth triode Q6;
a seventh transistor Q7, which is an NPN type transistor and whose emitter is grounded;
a twelfth resistor R12, one end of which is connected to the base electrode of the seventh transistor Q7 and the other end of which is connected to the collector electrode of the sixth transistor Q6; and the number of the first and second groups,
a third capacitor C3, one end of which is connected to the base of the sixth triode Q6 and the other end of which is connected to the collector of the seventh triode Q7;
the junction of the inductor L and the sixth transistor Q6 serves as the output out2 of the driver module, whose output out2 is connected in series with the lamp.
By adopting the technical scheme, in a normal state, the photosensitive control module is switched off, the sixth triode Q6 is cut off, and the lamp is turned off; when the photosensitive control module outputs a high level, the fourth triode Q4, the tenth resistor R10 and the inductor L form a charging circuit, the power supply charges the third capacitor C3 through the charging circuit, and since the voltage at the two ends of the third capacitor C3 cannot suddenly change, the base voltage of the sixth triode Q6 is a high level, so that the sixth triode Q6 is cut off; as the voltage of the third capacitor C3 increases, the base voltage of the sixth transistor Q6 decreases, the emitter voltage of the sixth transistor Q6 approaches the supply voltage, the sixth transistor Q6 turns on when the base voltage of the sixth transistor Q6 decreases to less than the turn-on voltage, and the seventh transistor Q7 also turns on; the third capacitor C3 discharges through the eb junction of the sixth transistor Q6 (assuming its ec junction is shorted due to conduction of the fifth transistor Q5, the collector of the sixth transistor Q6 is directly connected to the power supply), the power supply, and the ce junction of the seventh transistor Q7; after the discharge is finished, the sixth triode Q6 and the seventh triode Q7 are cut off, the power supply charges the third capacitor C3 again, then the sixth triode Q6 and the seventh triode Q7 are conducted, the third capacitor C3 discharges, an oscillation circuit is formed repeatedly in the way, the voltage boosting of the power supply is realized, and the stability of the power supply for the lamp is improved; in the oscillation process, when the seventh triode Q7 is turned on, the power supply is connected to the ground through the inductor L and the ce of the seventh triode Q7, the current is stored through the inductor L, when the seventh triode Q7 is turned off, the inductor L generates induced electromotive force, and the induced electromotive force is superposed with the power supply to drive the lamp to be turned on.
Optionally, the power module further includes a commercial power supply module and a power switching module, and the power switching module is used for switching to the commercial power supply module to supply power when the electric energy of the solar power supply module is exhausted.
Through adopting above-mentioned technical scheme, when the battery BT2 power supply was not enough, the power supply switches the module automatic switch commercial power supply module and provides the power to lamps and lanterns, improves the normal use degree of lamps and lanterns, does not need artifical manual switching, reduces staff's intensity of labour.
Optionally, the power switching module includes:
a voltage detector Z, the Vin end of which is connected with the anode of the battery BT2, and the Vss end of which is grounded;
a second transistor Q2 which is an NPN transistor and whose emitter is grounded;
a second resistor R2, one end of which is connected with the Vout end of the voltage detector Z, and the other end of which is connected with the base of a second triode Q2;
the first field-effect tube VT1 is a P-channel enhanced power mos field-effect tube, the grid electrode of the first field-effect tube VT1 is connected with the collector electrode of the second triode Q2, and the drain electrode of the first field-effect tube VT1 is connected with the positive electrode of the storage battery BT 2;
the third triode Q3 is an NPN type triode, and the collector of the third triode Q3 is connected with the voltage output end of the commercial power supply module;
a fourth resistor R4, one end of which is connected to the Vout end of the voltage detector Z, and the other end of which is connected to the base of the third transistor Q3;
the second field-effect tube VT2 is a P-channel enhanced power mos field-effect tube, the grid electrode of the second field-effect tube VT2 is connected with the emitting electrode of the third triode Q3, the drain electrode of the second field-effect tube VT2 is connected with the collecting electrode of the third triode Q3, and the source electrode of the second field-effect tube VT1 is connected with the grid electrode of the first field-effect tube VT 1;
a fifth resistor R5, one end of which is connected to the gate of the second fet VT2 and the other end of which is grounded; and the number of the first and second groups,
one end of the third resistor R3 is connected to the collector of the second transistor Q2, and the other end is connected to the gate of the first fet VT 1.
By adopting the technical scheme, in a normal state, the voltage of the storage battery BT2 is higher than the detection voltage of the voltage detector Z, the Vout end of the voltage detector Z outputs a high level, the high level enables the second triode Q2 to be conducted, at the moment, the grid of the first field-effect tube VT1 is grounded, a proper Ugs enables the first field-effect tube VT1 to be conducted, the third triode Q3 obtains divided voltage and is also conducted, the voltage of the fifth resistor R5 is close to the voltage of the commercial power supply module, the second field-effect tube VT2 is cut off, and the solar power supply circuit supplies power to the lamp; when the voltage of the storage battery BT2 is insufficient, the Vout end of the voltage detector Z outputs low level, the second triode Q2, the first field-effect tube VT1 and the third triode Q3 are cut off, one end of the fifth resistor R5 is grounded, the Ugs of the second field-effect tube VT2 is close to the negative end voltage of the commercial power supply module, the second field-effect tube VT2 is conducted, and the commercial power supply module supplies power to the lamp.
Optionally, the power switching module further includes:
the first capacitor C1 has one end connected to the gate of the first fet VT1 and the other end grounded.
By adopting the technical scheme, the first capacitor C1 has a charging function, and at the moment of power supply switching, the first capacitor C1 supplies power to the lamp, so that the influence of switching the power supply on the light emission of the lamp is reduced.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when the street lamp is illuminated, the solar panel BT1 converts light energy into electric energy and charges the storage battery BT2, the storage battery BT2 provides a power supply for the lamp, the charging protection module protects the storage battery BT2 when the voltage is over-voltage, and the storage battery BT2 provides a power supply for the lamp, so that the influence of municipal power supply faults on the street lamp is reduced, the consumption of commercial power is reduced, and energy is saved;
2. a photosensitive threshold is set by using a sixth resistor R6, and in a normal state, the photosensitive control module outputs a low level and the lamp is turned off; when the outdoor light intensity is weakened, the resistance value of the photoresistor R7 is increased, and the base voltage of the fourth triode Q4 is also increased; when the Ube is greater than the conduction voltage, the fourth triode Q4 and the fifth triode Q5 are conducted in sequence, the photosensitive control module outputs high level, and the lamp is turned on;
3. a sixth triode Q6, a tenth resistor R10, a seventh triode Q7, a twelfth resistor R1, a third capacitor C3 and an inductor L in the driving module form a boosting complementary tube oscillation circuit, so that the stability of the circuit is improved;
4. in a normal state, the storage battery BT2 provides a power supply for the lamp, when the voltage of the storage battery BT2 is insufficient, the power supply switching module automatically switches the commercial power supply module to provide the power supply for the lamp, two power supplies are adopted to provide the power supply, the normal use degree of the lamp is improved, manual switching is not needed, and the labor intensity of workers is reduced.
Drawings
FIG. 1 is a block diagram of an embodiment of the present application;
fig. 2 is a schematic overall structure diagram of an embodiment of the present application.
Description of reference numerals: 1. a power supply module; 11. a solar power supply module; 12. a mains supply module; 13. a charging protection module; 14. a power switching module; 2. a light sensing control module; 3. and a driving module.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses municipal administration illumination energy-saving control system. Referring to fig. 1, the lamp comprises a power module 1 for supplying power to a lamp, wherein the power module 1 comprises a solar power supply module, a commercial power supply module 12 and a charging protection module 13 connected with the solar power supply module 11; the power supply module 1 further comprises a power supply switching module 14 connected with the solar power supply module 11 and the commercial power supply module 12; the application also comprises a photosensitive control module 2 connected with the power supply switching module 14, a driving module 3 connected with the photosensitive control module 2 and a lamp connected in series with the driving module 3.
Under the condition of illumination, the solar power supply module 11 converts light energy into electric energy, and the charging protection module 13 is used for charging protection in the storage process of the electric energy. In a normal state, the solar power supply module 11 provides power for the lamp, and when the solar power supply module 11 is insufficient in power supply, the power switching module 14 automatically switches to the commercial power supply module 12 to keep the lamp normally powered. In this embodiment, the utility power supply module 12 may select an adapted dc constant current source or power adapter connected to the utility power network.
The light sensing control module 2 is used for sensing outdoor light intensity and controlling the driving module 3 to turn on or off the lamp according to light intensity change. In a normal state, the photosensitive control module 2 is in an open circuit state, and the lamp is turned off; when the light intensity is reduced (for example, the light intensity is reduced to 6 pm in autumn), the light sensing control signal is at a high level, and the driving module 3 drives the lamp to be turned on. This application utilizes the consumption that solar energy power supply reduced the commercial power and reduces municipal power supply trouble's influence to according to the automatic switching lamps and lanterns of light intensity, thereby realize the energy saving.
Referring to fig. 2, as an embodiment of the solar power module 11, the solar power module 11 includes a solar cell panel BT1, a battery BT2, and a first diode D1. The positive electrode of the solar cell panel BT1 is connected with the positive electrode of the storage battery BT2, the negative electrode of the solar cell panel BT2 is connected with the negative electrode of the storage battery BT2, the first diode D1 is connected between the solar cell panel BT1 and the storage battery BT2 in series, the positive electrode of the first diode D1 is connected with the positive electrode of the solar cell panel BT1, and the negative electrode of the first diode D1 is connected with the positive electrode of the storage battery BT 2.
When the solar lamp is illuminated, the solar cell panel BT1 converts light energy into electric energy, the storage battery BT2 is charged through the first diode D1, and the storage battery BT2 is used for providing power for the lamp; when the light is insufficient, the first diode D1 reduces the possibility that the current of the battery BT2 flows reversely to the solar cell panel BT1, thereby reducing the waste of energy and protecting the circuit elements.
Referring to fig. 2, as an embodiment of the charge protection module 13, the charge protection module 13 includes a first transistor Q1, a first resistor R1, a second diode D2, and a voltage regulator D3. The first triode Q1 is an NPN type triode, the collector of the first triode Q1 is connected with the negative electrode of the storage battery BT2, the base of the first triode Q1 is connected with the negative electrode of the second diode D2, and the emitter of the first triode Q1 is connected with the first resistor R1; the other end of the first resistor R1 is connected with the anode of the battery BT 2; the cathode of the voltage regulator tube D3 is connected with the connection point of the first triode Q1 and the first resistor R1, and the anode is connected with the anode of the second diode D2.
In the charging process, the voltage of the storage battery BT2 gradually rises, the first resistor R1 is a current-limiting resistor of the first triode Q1, when the storage battery BT2 is fully charged, the reverse breakdown voltage of the voltage regulator tube D3 is reached, the voltage regulator tube D3 is conducted, the second voltage regulator tube D2 and the first triode Q1 are also conducted, the first triode Q1 gradually consumes the voltage of the storage battery BT2, the voltage of the storage battery BT2 is reduced, and therefore the storage battery BT2 is in a trickle charge state, and overcharge protection of the storage battery BT2 is achieved.
Referring to fig. 2, as an embodiment of the power switching module 14, the power switching module 14 includes a voltage detector Z, a second transistor Q2, a second resistor R2, a first fet VT1, a third transistor Q3, a fourth resistor R4, a second fet VT2, a fifth resistor R5, and a third resistor R3. For the voltage detector Z, the Vin end is connected with the anode of the battery BT2, the Vss end is grounded, and the Vout end is connected with the second resistor R2; for the second triode Q2, it is an NPN type triode, and its emitter is grounded, its base is connected to the other end of the second resistor R2, collector is connected to the gate of the first field effect transistor VT 1; for the first field effect transistor VT1, it is a P-channel enhanced power mos field effect transistor, its drain is connected with the positive pole of the storage battery BT2, and its source is connected with the light sensing control module 2; the third resistor R3 is connected in parallel with the gate and the source of the first field effect transistor VT 1; for the third triode Q3, it is an NPN type triode and is connected in series with the fourth resistor R4 and then connected to the Vout terminal of the voltage detector Z, the collector is connected to the positive electrode of the utility power supply module 12, and the emitter is connected to one end of the fifth resistor R5; for the second field effect transistor VT2, it is a P channel enhancement mode power mos field effect transistor, its gate is connected to the connection point of the third triode Q3 and the fifth resistor R5, the drain is connected to the collector of the third triode Q3 and the positive pole of the mains supply module 12, respectively, the source is connected to the connection point of the first field effect transistor VT1 and the third resistor R3; the other end of the fifth resistor R5 is connected to the negative pole of the mains supply module 12 and ground, respectively.
In a normal state, the voltage of the storage battery BT2 is higher than the detection voltage of the voltage detector Z, and the Vout end of the voltage detector Z outputs a high level; at this time, the second triode Q2 is turned on, the gate of the first fet VT1 is pulled down to the ground, and a proper Ugs turns on the first fet VT 1; the third triode Q3 obtains the divided voltage and is also turned on, the fifth resistor R5 approaches the voltage of the commercial power supply module 12, the second field effect transistor VT2 is turned off, and at this time, the solar power supply module 11 provides power to the lamp.
When the voltage of the battery BT2 is insufficient, the Vout terminal of the voltage detector Z outputs a low level, the second transistor Q2 and the third transistor Q3 are both turned off, and the Ugs of the second field effect transistor VT2 approaches the negative terminal voltage of the utility power supply module 12, so that the second field effect transistor VT2 is turned on, and at this time, the utility power supply module 12 supplies power to the lamp.
Referring to fig. 2, as a further embodiment of the power switching module 14, the power switching module 14 further includes a first capacitor C1, one end of which is connected to the source of the first fet VT1, and the other end of which is grounded. The first capacitor C1 has a charging function, and is used for providing power for the lamp at the moment of power switching, so that the influence of the switching power on the normal operation of the lamp is reduced.
Referring to fig. 2, as a further embodiment of the light sensing control module 2, the light sensing control module 2 includes a photo resistor R7, a fourth transistor Q4, a sixth resistor R6, a fifth transistor Q5, a ninth resistor R9, and an eleventh resistor R11. For the photoresistor R7, one end is connected with one end of the sixth resistor R6, and the other end is grounded; the other end of the sixth resistor R6 is connected with the connection point of the first capacitor C1 and the first field effect transistor VT 1; for the fourth triode Q4, it is an NPN type triode and its base connects the connection point of the sixth resistor R6 and the photoresistor R7, its emitter connects the eleventh resistor R11 and ground, its collector connects one end of the ninth resistor R9; the other end of the eleventh resistor R11 is connected with the driving module 2; for the fifth triode Q5, the base electrode of the fifth triode Q5 is connected to the other end of the ninth resistor R9, the emitter electrode of the fifth triode Q5 is connected to the connection point of the first field effect transistor VT1 and the first capacitor C1, and the collector electrode of the fifth triode Q5 is connected to the driving module; the connection point of the fourth transistor Q4 and the ninth resistor R9 serves as the output end out1 of the light sensing control module 2, and the output end out1 of the light sensing control module 2 is connected to the driving module 3.
In use, a worker may set the light sensitivity threshold using the sixth resistor R6; in a normal state, the photosensitive control module 2 is in an open circuit state; when the light intensity is weakened, the resistance value of the photoresistor R7 is increased, the partial voltage of the base of the fourth triode Q4 is also increased, and since the emitter of the fourth triode Q4 is grounded, when Ube is increased to be greater than the conducting voltage, the fourth triode Q4 is conducted, the base of the fifth triode Q5 is also conducted after obtaining the partial voltage, and the output end out1 of the light sensing control module 2 outputs a high-level light sensing signal.
Referring to fig. 2, as a further embodiment of the photosensitive control module 2, the photosensitive control module 2 further includes a second capacitor C2, one end of which is connected to the base of the fourth transistor Q4, and the other end of which is grounded, and which has a filtering function, so as to improve the anti-interference capability of the circuit.
Referring to fig. 2, as a further embodiment of the light sensing control module 2, the light sensing control module 2 further includes an eighth resistor R8, one end of which is connected to the base of the fourth transistor Q4, and the other end of which is grounded. In order to prevent the power switching module from malfunctioning and causing the battery BT2 to over-discharge when the voltage of the battery BT2 is not sufficient to supply power to the lamp, which may damage the battery, the voltage division function of the eighth resistor R8 makes the fourth transistor Q4 not sufficiently conductive, thereby protecting the battery BT 2.
Referring to fig. 2, as an embodiment of the driving module 3, the driving module 3 includes a sixth transistor Q6, a tenth resistor R10, a seventh transistor Q7, a twelfth resistor R12, a third capacitor C3, and an inductor L. For the sixth triode Q6, which is a PNP type triode, the base electrodes are respectively connected to one end of the tenth resistor R10 and one end of the third capacitor C3, the emitter electrode is connected to the collector electrode of the fifth triode Q5, and the collector electrode is connected to one end of the twelfth resistor R12; the other end of the tenth resistor R10 is connected to the output terminal out1 of the light sensing control module 2; the connection point of the sixth triode Q6 and the twelfth resistor R12 is connected with an eleventh resistor R11; for the seventh triode Q7, it is an NPN type triode and its base is connected to the other end of the twelfth resistor R12, and its collector is connected to the other end of the third capacitor C3, and its emitter is grounded; the inductor L has one end connected with the emitter of the sixth triode Q6 and the other end connected with the connection point of the third capacitor C3 and the seventh triode Q7; the connection point of the inductor L and the seventh transistor Q7 is used as the output end out2 of the driving module 3, and the output end out2 is connected to the lamp.
In a normal state, the photosensitive control module 2 is in an open circuit, and the lamp is turned off. When the driving module 3 receives the high level output from the light sensing control module 2, the collector of the fourth transistor Q4, the tenth resistor R10 and the inductor L form a charging circuit, the power supply charges the third capacitor C3 through the charging circuit, and since the voltage across the third capacitor C3 cannot change suddenly, the base voltage of the sixth transistor Q6 is at the high level, and the emitter voltage of the sixth transistor Q6 approaches the base voltage of the sixth transistor Q6, so that the sixth transistor Q6 is turned off. As the voltage of the third capacitor C3 increases, the base voltage of the sixth transistor Q6 decreases, the emitter voltage of the sixth transistor Q6 remains unchanged, and the sixth transistor Q6 is turned on when the base voltage of the sixth transistor Q6 decreases to meet the turn-on voltage, and at this time, the seventh transistor Q7 is turned on after obtaining the divided voltage.
After being fully charged, the third capacitor C3 discharges through the eb junction of the sixth transistor Q6 (assuming that the ec junction of the fifth transistor Q5 is short-circuited and the collector of the sixth transistor Q6 is directly connected to the power supply, due to conduction of the fifth transistor Q3526), the power supply, and the ce junction of the seventh transistor Q7; after the third capacitor C3 is discharged, the sixth triode Q6 and the seventh triode Q7 are cut off, the power supply charges the third capacitor C3 again, then the sixth triode Q6 and the seventh triode Q7 are conducted again, the third capacitor C3 discharges again, the process is repeated to form an oscillating circuit, the voltage of the power supply is boosted, and therefore the stability of the power supply for the lamp is improved.
During the oscillation process and when the seventh transistor Q7 is turned on, the power is connected to the ground through the inductor L and the ce of the seventh transistor Q7, the inductor L stores the electric energy, so that when the seventh transistor Q7 is turned off, the inductor L generates induced electromotive force, and the induced electromotive force and the power voltage are superposed to stably supply power to the lamp.
The implementation principle of the municipal lighting energy-saving control system in the embodiment of the application is as follows: the solar cell panel BT1 converts light energy into electric energy and stores the electric energy in the storage battery BT2, and when the storage battery BT2 is fully charged, the voltage of the storage battery BT2 is consumed by the first triode, so that the storage battery BT2 is in a trickle charge state, and the overcharge protection of the storage battery BT2 is realized. In a normal state, the solar power supply module 11 provides power for the lamp, and when the solar power supply module 11 is insufficient in power supply, the power switching module 14 switches to the commercial power supply module 12 to provide power for the lamp.
In a normal state, the photosensitive control module 2 is in an open circuit, and the lamp is in an off state. When the light intensity decreases, the resistance of the photo resistor R7 increases, and the output out1 of the photo control module 2 outputs a high-level photo control signal. The driving module 3 receives the photosensitive control signal and responds, and a voltage boosting oscillating circuit composed of a sixth triode Q6, a seventh triode Q7, an inductor L and a third capacitor C3 drives the lamp to be stably turned on.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A municipal lighting energy-saving control system, comprising:
the power supply module (1) comprises a solar power supply module (11) for supplying power to the lamp; and the number of the first and second groups,
the charging protection module (13) is connected with the solar power supply module (11) and is used for charging protection;
the solar power supply module (11) comprises:
solar panel BT 1;
a storage battery BT2, the positive electrode of which is connected with the positive electrode of the solar cell panel BT1 and the charging protection module (13), and the negative electrode of which is connected with the negative electrode of the solar cell panel BT 1; and the number of the first and second groups,
the positive electrode of the first diode D1 is connected to the positive electrode of the solar cell panel BT1, and the negative electrode thereof is connected to the positive electrode of the battery BT 2.
2. The municipal lighting energy-saving control system according to claim 1, wherein the charge protection module (13) comprises:
a first triode Q1 which is an NPN type triode, and the collector electrode of the first triode Q1 is connected with the negative electrode of the storage battery BT 2;
a first resistor R1, one end of which is connected with the positive electrode of the battery BT2 and the other end of which is connected with the emitter of the first triode Q1;
the cathode of the second diode D2 is connected with the base of the first triode Q1; and the number of the first and second groups,
and the cathode of the voltage regulator tube D3 is connected with the emitter of the first triode Q1, and the anode of the voltage regulator tube D3 is connected with the anode of the second diode D2.
3. The municipal lighting energy-saving control system according to claim 1, further comprising a photosensitive control module (2) connected to the solar power supply module (11) for sensing outdoor light intensity and outputting photosensitive control signals, wherein the photosensitive control module (2) comprises:
a photoresistor R7, one end of which is grounded;
a fourth triode Q4 which is an NPN type triode, the base of which is connected to the connection point of the fifth resistor R5 and the battery BT2, and the emitter of which is grounded;
a sixth resistor R6 having one end connected to the positive electrode of the battery BT2 and the other end connected to the other end of the photoresistor R7;
a fifth triode Q5 which is a PNP type triode, and the emitter electrode of the fifth triode Q5 is connected with the anode of the storage battery BT 2; and the number of the first and second groups,
a ninth resistor R9, one end of which is connected to the base of the fifth transistor Q5 and the other end of which is connected to the collector of the fourth transistor Q4;
the connection point of the fourth triode Q4 and the ninth resistor R9 is used as the output end out1 of the light sensing control module (2), and the output end out1 of the light sensing control module (2) is connected in series with the lamp.
4. The municipal lighting energy-saving control system according to claim 3, wherein the light-sensing control module (2) further comprises an eighth resistor R8, one end of which is connected to the base of a fourth transistor Q4, and the other end of which is grounded.
5. The municipal lighting energy-saving control system according to claim 1, further comprising a driving module (3) connected in series between the output of the photosensitive control module (2) and the lamp for receiving and responding to the photosensitive signal and driving the lamp to emit light, wherein the driving module (3) comprises:
a sixth triode Q6 which is a PNP type triode, wherein the emitter of the sixth triode Q6 is connected with the collector of the fifth triode Q5;
one end of the tenth resistor R10 is connected with the output end out1 of the light sensing control module (2), and the other end is connected with the base electrode of the sixth triode Q6;
a seventh transistor Q7, which is an NPN type transistor and whose emitter is grounded;
a twelfth resistor R12, one end of which is connected to the base electrode of the seventh transistor Q7 and the other end of which is connected to the collector electrode of the sixth transistor Q6; and the number of the first and second groups,
a third capacitor C3, one end of which is connected to the base of the sixth triode Q6 and the other end of which is connected to the collector of the seventh triode Q7;
the connection point of the inductor L and the sixth transistor Q6 is used as the output end out2 of the driving module (3), and the output end out2 of the driving module (3) is connected in series with the lamp.
6. The municipal lighting energy-saving control system according to claim 1, wherein the power module (1) further comprises a mains power supply module (12) and a power switching module (14), and the power switching module (14) is used for switching to the mains power supply module (12) to supply power when the solar power supply module (11) is exhausted.
7. The municipal lighting energy-saving control system according to claim 6, wherein the power switching module (14) comprises:
a voltage detector Z, the Vin end of which is connected with the anode of the battery BT2, and the Vss end of which is grounded;
a second transistor Q2 which is an NPN transistor and whose emitter is grounded;
a second resistor R2, one end of which is connected with the Vout end of the voltage detector Z, and the other end of which is connected with the base of a second triode Q2;
the first field-effect tube VT1 is a P-channel enhanced power mos field-effect tube, the grid electrode of the first field-effect tube VT1 is connected with the collector electrode of the second triode Q2, and the drain electrode of the first field-effect tube VT1 is connected with the positive electrode of the storage battery BT 2;
the third triode Q3 is an NPN type triode, and the collector electrode of the third triode Q3 is connected with the voltage output end of the commercial power supply module (12);
a fourth resistor R4, one end of which is connected to the Vout end of the voltage detector Z, and the other end of which is connected to the base of the third transistor Q3;
the second field-effect tube VT2 is a P-channel enhanced power mos field-effect tube, the grid electrode of the second field-effect tube VT2 is connected with the emitting electrode of the third triode Q3, the drain electrode of the second field-effect tube VT2 is connected with the collecting electrode of the third triode Q3, and the source electrode of the second field-effect tube VT1 is connected with the grid electrode of the first field-effect tube VT 1;
a fifth resistor R5, one end of which is connected to the gate of the second fet VT2 and the other end of which is grounded; and the number of the first and second groups,
one end of the third resistor R3 is connected to the collector of the second transistor Q2, and the other end is connected to the gate of the first fet VT 1.
8. The municipal lighting energy-saving control system according to claim 7, wherein the power switching module (14) further comprises:
the first capacitor C1 has one end connected to the gate of the first fet VT1 and the other end grounded.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022396984.3U CN213028658U (en) | 2020-10-24 | 2020-10-24 | Municipal administration illumination energy-saving control system |
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|---|---|---|---|
| CN202022396984.3U CN213028658U (en) | 2020-10-24 | 2020-10-24 | Municipal administration illumination energy-saving control system |
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