CN116760171A - Intelligent machine power supply energy storage interactive switching system - Google Patents
Intelligent machine power supply energy storage interactive switching system Download PDFInfo
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- CN116760171A CN116760171A CN202311016229.XA CN202311016229A CN116760171A CN 116760171 A CN116760171 A CN 116760171A CN 202311016229 A CN202311016229 A CN 202311016229A CN 116760171 A CN116760171 A CN 116760171A
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- 230000002452 interceptive effect Effects 0.000 title claims abstract description 17
- 238000004146 energy storage Methods 0.000 title claims abstract description 16
- 230000005669 field effect Effects 0.000 claims description 17
- 238000005070 sampling Methods 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 3
- 230000001012 protector Effects 0.000 claims description 3
- 238000013461 design Methods 0.000 description 8
- 229920006395 saturated elastomer Polymers 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
Abstract
The invention belongs to the technical field of power management, and discloses an intelligent machine power supply energy storage interactive switching system which comprises a solar power supply unit, a mains supply unit, a storage battery, a first switching circuit, a second switching circuit, a control circuit, a comparison circuit and a charging switch tube, wherein two input ends of the first switching circuit are respectively connected with the solar power supply unit and the mains supply unit, two input ends of the second switching circuit are respectively connected with the storage battery and the first switching circuit, an input end of the charging switch tube is connected in parallel with an output end of the first switching circuit, an output end of the charging switch tube is connected in parallel with an anode of the storage battery, the control end of the charging switch tube is connected with the control circuit, the control circuit is connected with the comparison circuit and the charging switch tube, and two input ends of the comparison circuit are respectively connected with storage battery voltage and reference voltage. The intelligent power supply system can intelligently switch among solar power supply, commercial power supply and storage battery power supply, fully ensures the power supply of the intelligent machine, and meets the requirements on the economy and stability of the intelligent machine power supply.
Description
Technical Field
The invention belongs to the technical field of power management, and particularly relates to an intelligent machine power supply energy storage interactive switching system.
Background
Along with the development of science and technology, more and more intelligent machines are applied to the production and life of people. Most of the existing intelligent machines adopt a mains supply, solar power supply or storage battery power supply scheme, or a power supply scheme combining two by two. The power supply of a single power supply is easy to influence the work of the intelligent machine due to power failure caused by various factors, the power supply stability is poor, the conventional combined power supply mode generally needs to be manually switched when the power supply is switched alternately, or a switching instruction is sent to a power supply system to be switched when the abnormal condition of the power supply is monitored through a corresponding monitoring end, so that the intelligent power supply is not simple and efficient, and extra manpower and material resources are required to be consumed. Therefore, an effective technical solution that can simply implement intelligent interactive switching of the local power supply of the intelligent machine is needed.
Disclosure of Invention
The invention aims to provide an intelligent machine power supply energy storage interactive switching system which is used for solving the problems in the prior art.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the invention provides an intelligent machine power supply energy storage interactive switching system, which comprises a solar power supply unit, a mains supply unit, a storage battery, a first switching circuit, a second switching circuit, a control circuit, a comparison circuit and a charging switch tube, wherein two input ends of the first switching circuit are respectively connected with the solar power supply unit and the mains supply unit, the output end of the first switching circuit is connected with one input end of the second switching circuit, the positive electrode of the storage battery is connected with the other input end of the second switching circuit, the output end of the second switching circuit is used for supplying power to an external intelligent machine, the input end of the charging switch tube is connected in parallel with the output end of the first switching circuit, the output end of the charging switch tube is connected in parallel with the positive electrode of the storage battery, the control end of the charging switch tube is connected with the control circuit, the driving end of the control circuit is connected with the output end of the comparison circuit, one input end of the comparison circuit is connected in parallel with the positive electrode of the storage battery, the other input end is used for accessing reference voltage, the solar power supply unit is used for providing solar power, the commercial power supply unit is used for providing commercial power conversion power, the first switching circuit is used for selecting the commercial power conversion power as a first output power source for outputting when no solar power is input, the solar power source is switched and selected as the first output power source for outputting when the solar power source is input, the comparison circuit is used for carrying out voltage sampling detection on the storage battery, outputting low level to the control circuit when the voltage of the storage battery is judged to be smaller than the reference voltage, outputting high level to the control circuit when the voltage of the storage battery is judged to be larger than the reference voltage, the control circuit is used for controlling the charge switch tube to be turned on when receiving low level and controlling the charge switch tube to be turned off when receiving high level, the charging switch tube is used for being connected with a first output power supply, converting the first output power supply into a charging power supply to be transmitted to the storage battery when the charging switch tube is connected with the charging switch tube, and outputting the charging power supply to the storage battery when the charging switch tube is disconnected, the storage battery is used for providing the storage battery power supply for the second switching circuit, the second switching circuit is used for selecting the storage battery power supply as the second output power supply to output when the charging switch tube is not connected with the first output power supply, and switching the first output power supply to be selected as the second output power supply to output when the charging switch tube is connected with the first output power supply.
In one possible design, a first unidirectional diode is arranged between the first switching circuit and the second switching circuit, the positive electrode of the first unidirectional diode is connected with the first switching circuit, the negative electrode of the first unidirectional diode is connected with the second switching circuit, a second unidirectional diode is arranged between the storage battery and the second switching circuit, the positive electrode of the second unidirectional diode is connected with the storage battery, and the negative electrode of the second unidirectional diode is connected with the second switching circuit.
In one possible design, an overvoltage protection is connected to the output of the second switching circuit.
In one possible design, the first switching circuit includes a first switching triode and a first relay, the first switching triode is an NPN triode, two input contacts of the first relay are respectively connected with the solar power supply unit and the mains supply unit, the first relay is normally closed to be connected with the input contact corresponding to the mains supply unit, the control end of the first relay is connected with the emitter of the first switching triode, the collector of the first switching triode is connected with one end of the first resistor, the other end of the first resistor is connected with the solar power supply unit in parallel, the base of the first switching triode is connected with the common end of the second resistor and the first adjustable resistor, the other end of the second resistor is grounded, the other end of the first adjustable resistor is connected with the solar power supply unit in parallel, and the output end of the first relay outputs a first output power supply.
In one possible design, the second switching circuit includes a second switching triode and a second relay, the second switching triode is an NPN triode, two input contacts of the second relay are respectively connected with the first switching circuit and the storage battery, the second relay is normally closed to connect with the corresponding input contact of the storage battery, a control end of the second relay is connected with an emitter of the second switching triode, a collector of the second switching triode is connected with one end of a third resistor, the other end of the third resistor is connected with an output end of the first switching circuit in parallel, a base of the second switching triode is connected with a common connection end of a fourth resistor and a second adjustable resistor, the other end of the fourth resistor is grounded, the other end of the second adjustable resistor is connected with an output end of the first switching circuit in parallel, and the output end of the second relay outputs a second output power supply.
In one possible design, the comparison circuit comprises a comparator, the comparator adopts an operational amplifier, the non-inverting input end of the comparator is connected with a sampling circuit, the sampling circuit is connected in parallel with the positive electrode of the storage battery, the inverting input end of the comparator is connected with a reference voltage, and the output end of the comparator is connected with a control circuit.
In one possible design, the control circuit includes an N-channel field effect transistor, a gate of the N-channel field effect transistor is connected to an output end of the comparator, a source is grounded, a drain is connected to one end of the fifth resistor, the other end of the fifth resistor is connected to an output end of the first switching circuit, and a control end of the charging switch transistor is connected in parallel to the drain of the N-channel field effect transistor.
In one possible design, the charging switch tube includes a third switch triode, the third switch triode is an NPN triode, a base electrode of the third switch triode is connected in parallel with a drain electrode of the N-channel field effect tube, a collector electrode of the third switch triode is connected in parallel with an output end of the first switch circuit, and an emitter electrode of the third switch triode is connected in parallel with an anode of the storage battery.
In one possible design, the solar power supply unit comprises a solar panel and the mains power supply unit comprises a rectifier transformer.
The beneficial effects are that:
according to the invention, the automatic switching between the mains supply and the solar power supply can be realized through the first switching circuit, the automatic charging of the storage battery in the unsaturated state can be realized through the control circuit, the comparison circuit and the charging switch tube, and the automatic switching between the output power supply of the first switching circuit and the storage battery power supply can be realized through the second switching circuit. The intelligent switching device can intelligently switch among solar power supply, mains supply and storage battery power supply; when a solar power supply exists, the solar power supply is used for supplying power to the intelligent machine and charging a storage battery, so that the mobile power supply requirement is met; when the solar energy power supply is not available, the commercial power is utilized to convert the power supply to supply power for the intelligent machine, and the storage battery is charged; when the solar power supply and the commercial power conversion power supply are not available, the storage battery is used for supplying power to the intelligent machine, so that the power supply is fully ensured, and the requirements on the economy and the stability of the power supply of the intelligent machine are met.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a system architecture diagram of the present invention;
fig. 2 is a schematic diagram of the whole circuit of the present invention.
Detailed Description
It should be noted that the description of these examples is for aiding in understanding the present invention, but is not intended to limit the present invention. Specific structural and functional details disclosed herein are merely representative of example embodiments of the invention. This invention may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.
It will be appreciated that the term "coupled" is to be interpreted broadly, and may be a fixed connection, a removable connection, or an integral connection, for example, unless explicitly stated and limited otherwise; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in the embodiments can be understood by those of ordinary skill in the art according to the specific circumstances.
In the following description, specific details are provided to provide a thorough understanding of example embodiments. However, it will be understood by those of ordinary skill in the art that the example embodiments may be practiced without these specific details. For example, a system may be shown in block diagrams in order to avoid obscuring the examples with unnecessary detail. In other embodiments, well-known processes, structures, and techniques may be shown without unnecessary detail in order to avoid obscuring the embodiments.
Examples:
the embodiment provides an intelligent machine power supply energy storage interactive switching system, as shown in figures 1 and 2, comprising a solar power supply unit, a mains supply unit, a storage battery, a first switching circuit, a second switching circuit, a control circuit, a comparison circuit and a charging switch tube, wherein two input ends of the first switching circuit are respectively connected with the solar power supply unit and the mains supply unit, an output end of the first switching circuit is connected with one input end of the second switching circuit, the positive electrode of the storage battery is connected with the other input end of the second switching circuit, the output end of the second switching circuit is used for supplying power to an external intelligent machine, the input end of the charging switch tube is connected in parallel with the output end of the first switching circuit, the output end of the charging switch tube is connected in parallel with the positive electrode of the storage battery, the control end of the charging switch tube is connected with the control circuit, the driving end of the charging switch tube is connected with the output end of the comparison circuit, one input end of the comparison circuit is connected in parallel with the positive electrode of the storage battery, the other input end of the comparison circuit is used for accessing a reference voltage, the solar power supply unit is used for providing a solar power supply, the commercial power supply unit is used for providing a commercial power conversion power supply, the first switching circuit is used for selecting the commercial power conversion power supply as a first output power supply for outputting when no solar power supply is input, the first switching circuit is used for switching and selecting the solar power supply as the first output power supply for outputting when the solar power supply is input, the comparison circuit is used for carrying out voltage sampling detection on the storage battery, outputting a low level to the control circuit when the voltage of the storage battery is judged to be smaller than the reference voltage, outputting a high level to the control circuit when the voltage of the storage battery is judged to be larger than the reference voltage, the control circuit is used for controlling the charge switch tube to be conducted when the low level is received, the charging switch tube is controlled to be cut off, the charging switch tube is used for being connected with a first output power supply, the first output power supply is converted into a charging power supply to be transmitted to the storage battery when the charging switch tube is connected with the charging switch tube, no power supply is output when the charging switch tube is cut off, the storage battery is used for providing a storage battery power supply for the second switching circuit, the second switching circuit is used for selecting the storage battery power supply to be used as a second output power supply for outputting when the first output power supply is not input, and the first output power supply is switched and selected to be used as the second output power supply for outputting when the first output power supply is input.
When the intelligent machine is in specific implementation, under the condition that the solar power supply unit outputs the solar power supply, the first switching circuit switches and selects the solar power supply as the first output power supply to output, and the second switching circuit switches and selects the first output power supply as the second output power supply to output, so that the intelligent machine is powered; when the comparison circuit detects that the storage battery is unsaturated, the control circuit controls the charge switch tube to be conducted, and the first output power supply is converted into a charging power supply to be transmitted to the storage battery to charge the storage battery; when the comparison circuit detects that the storage battery is saturated, the control circuit controls the charging switch tube to be cut off, and the storage battery is not charged. Under the condition that the solar power supply unit does not output a solar power supply, the first switching circuit switches and selects a mains supply conversion power supply of the mains supply unit as a first output power supply to output, and the second switching circuit switches and selects the first output power supply as a second output power supply to output, so that the intelligent machine is powered; when the comparison circuit detects that the storage battery is unsaturated, the control circuit controls the charge switch tube to be conducted, and the first output power supply is converted into a charging power supply to be transmitted to the storage battery to charge the storage battery; when the comparison circuit detects that the storage battery is saturated, the control circuit controls the charging switch tube to be cut off, and the storage battery is not charged. And under the condition that the solar power supply unit and the commercial power supply unit have no power supply output, the second switching circuit switches and selects the storage battery power supply as a second output power supply to output, and the intelligent machine is powered. Through such automatic switching mode of power, fully guarantee the power supply of intelligent machine, satisfy the economic nature and the stability demand of intelligent machine power supply.
Further, the first switching circuit includes a first switching triode Q8 and a first relay K1, the first switching triode Q8 is an NPN triode, two input contacts of the first relay K1 are respectively connected with the solar power supply unit P4 and the mains supply unit F202, the first relay K1 is normally closed to connect with an input contact corresponding to the mains supply unit F202, a control end of the first relay K1 is connected with an emitter of the first switching triode Q8, a collector of the first switching triode Q8 is connected with one end of the first resistor R274, the other end of the first resistor R274 is connected with the solar power supply unit P4 in parallel, a base of the first switching triode Q8 is connected with a common connection end of the second resistor R272 and the first adjustable resistor R270, the other end of the second resistor R272 is grounded, the other end of the first adjustable resistor R270 is connected with the solar power supply unit P4 in parallel, and an output end of the first relay Q8 outputs a first output power supply. When the solar power supply unit P4 has a solar power supply output, the base of the first switching triode Q8 generates a static bias current, the first switching triode Q8 is turned on, a relay control signal is output to the first relay K1, and the first relay K1 is switched to the output of the mains supply conversion power supply.
Further, the second switching circuit includes a second switching triode Q7 and a second relay K2, the second switching triode Q7 is an NPN triode, two input contacts of the second relay K2 are respectively connected with the first switching circuit and the storage battery U11, the normally closed switch of the second relay K2 is connected with the input contact corresponding to the storage battery U11, a control end of the second relay K2 is connected with an emitter of the second switching triode Q7, a collector of the second switching triode Q7 is connected with one end of a third resistor R275, the other end of the third resistor R275 is connected with an output end of the first switching circuit in parallel, a base of the second switching triode Q7 is connected with a common connection end of a fourth resistor R277 and a second adjustable resistor R271, the other end of the fourth resistor R277 is grounded, the other end of the second adjustable resistor R271 is connected with an output end of the first switching circuit in parallel, and the output end of the second relay K2 outputs a second output power supply. When the first switching circuit outputs from the first output power supply, the base electrode of the second switching triode Q7 generates static bias current, the second switching triode Q7 is conducted, a relay control signal is output to the second relay K2, and the second relay K2 is switched to the on output of the first output power supply.
Further, the comparison circuit comprises a comparator U10, the comparator U10 adopts an operational amplifier, the non-inverting input end of the comparator U10 is connected with a sampling circuit, the sampling circuit is connected in parallel with the positive electrode of the storage battery U11, the inverting input end of the comparator U10 is connected with a reference voltage, and the output end of the comparator U10 is connected with a control circuit. When the sampling voltage input by the non-inverting input end of the comparator U10 is smaller than the reference voltage input by the inverting input end, the storage battery U11 is not saturated, the comparator U10 outputs a low level to the control circuit, otherwise, when the sampling voltage input by the non-inverting input end of the comparator U10 is larger than the reference voltage input by the inverting input end, the storage battery U11 is saturated, and the comparator U10 outputs a high level to the control circuit.
Further, the control circuit includes an N-channel field effect transistor J303, a gate of the N-channel field effect transistor J303 is connected to an output end of the comparator U10, a source is grounded, a drain is connected to one end of the fifth resistor R273, another end of the fifth resistor R273 is connected to an output end of the first switching circuit, and a control end of the charging switch transistor is connected in parallel to a drain of the N-channel field effect transistor J303. The charging switch tube comprises a third switch triode Q9, the third switch triode Q9 is an NPN triode, the base electrode of the third switch triode Q9 is connected in parallel with the drain electrode of the N channel field effect tube J303, the collector electrode of the third switch triode Q9 is connected in parallel with the output end of the first switch circuit, and the emitter electrode of the third switch triode Q9 is connected in parallel with the anode of the storage battery U11. When the comparator U10 outputs a low level to the gate of the N-channel field effect transistor J303, the drain of the N-channel field effect transistor J303 provides a static bias current for the base of the third switching transistor Q9, the third switching transistor Q9 is turned on, the first output power is converted into a charging power and transmitted to the storage battery U11 to charge the storage battery U11, otherwise, when the comparator U10 outputs a high level to the gate of the N-channel field effect transistor J303, the base of the third switching transistor Q9 has no static bias current, and the third switching transistor Q9 is turned off, i.e., no charging power is transmitted to the storage battery U11.
Further, a first unidirectional diode D2 is arranged between the first switching circuit and the second switching circuit, the positive electrode of the first unidirectional diode D2 is connected with the first switching circuit, the negative electrode of the first unidirectional diode D2 is connected with the second switching circuit, a second unidirectional diode D1 is arranged between the storage battery U11 and the second switching circuit, the positive electrode of the second unidirectional diode D1 is connected with the storage battery U11, the negative electrode of the second unidirectional diode D1 is connected with the second switching circuit, current backflow can be effectively prevented through the arrangement of the unidirectional diode, and reverse current protection is formed on the circuit. The output end of the second switching circuit is connected with an overvoltage protector, and overvoltage protection can be formed on a subsequent intelligent machine through the overvoltage protector, so that the intelligent machine is prevented from being damaged due to overlarge output voltage of the second switching circuit. The solar power supply unit comprises a solar panel, a solar power supply is generated through the solar panel, the commercial power supply unit comprises a rectifier transformer, and the commercial power is rectified and transformed through the rectifier transformer to output proper direct current voltage.
Finally, it should be noted that: the foregoing description is only of the preferred embodiments of the invention and is not intended to limit the scope of the invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The intelligent machine power supply energy storage interactive switching system is characterized by comprising a solar power supply unit, a mains supply unit, a storage battery, a first switching circuit, a second switching circuit, a control circuit, a comparison circuit and a charging switch tube, wherein two input ends of the first switching circuit are respectively connected with the solar power supply unit and the mains supply unit, an output end of the first switching circuit is connected with one input end of the second switching circuit, the anode of the storage battery is connected with the other input end of the second switching circuit, the output end of the second switching circuit is used for supplying power to an external intelligent machine, the input end of the charging switch tube is connected in parallel with the output end of the first switching circuit, the output end of the charging switch tube is connected in parallel with the anode of the storage battery, the control end of the charging switch tube is connected with the control circuit, the driving end of the control circuit is connected with the output end of the comparison circuit, one input end of the comparison circuit is connected in parallel with the anode of the storage battery, the other input end is used for accessing reference voltage, the solar power supply unit is used for providing solar power, the commercial power supply unit is used for providing commercial power conversion power, the first switching circuit is used for selecting the commercial power conversion power as a first output power source for outputting when no solar power is input, the solar power source is switched and selected as the first output power source for outputting when the solar power source is input, the comparison circuit is used for carrying out voltage sampling detection on the storage battery, outputting low level to the control circuit when the voltage of the storage battery is judged to be smaller than the reference voltage, outputting high level to the control circuit when the voltage of the storage battery is judged to be larger than the reference voltage, the control circuit is used for controlling the charge switch tube to be turned on when receiving low level and controlling the charge switch tube to be turned off when receiving high level, the charging switch tube is used for being connected with a first output power supply, converting the first output power supply into a charging power supply to be transmitted to the storage battery when the charging switch tube is connected with the charging switch tube, and outputting the charging power supply to the storage battery when the charging switch tube is disconnected, the storage battery is used for providing the storage battery power supply for the second switching circuit, the second switching circuit is used for selecting the storage battery power supply as the second output power supply to output when the charging switch tube is not connected with the first output power supply, and switching the first output power supply to be selected as the second output power supply to output when the charging switch tube is connected with the first output power supply.
2. The intelligent machine power supply energy storage interactive switching system according to claim 1, wherein a first unidirectional diode is arranged between the first switching circuit and the second switching circuit, the positive electrode of the first unidirectional diode is connected with the first switching circuit, the negative electrode of the first unidirectional diode is connected with the second switching circuit, a second unidirectional diode is arranged between the storage battery and the second switching circuit, the positive electrode of the second unidirectional diode is connected with the storage battery, and the negative electrode of the second unidirectional diode is connected with the second switching circuit.
3. The intelligent machine power supply energy storage interactive switching system according to claim 1, wherein an output end of the second switching circuit is connected with an overvoltage protector.
4. The intelligent machine power supply energy storage interactive switching system according to claim 1, wherein the first switching circuit comprises a first switching triode and a first relay, the first switching triode is an NPN triode, two input contacts of the first relay are respectively connected with a solar power supply unit and a mains supply unit, a normally closed switch-on mains supply unit of the first relay corresponds to an input contact, a control end of the first relay is connected with an emitter of the first switching triode, a collector of the first switching triode is connected with one end of a first resistor, the other end of the first resistor is connected with the solar power supply unit in parallel, a base of the first switching triode is connected with a common end of a second resistor and the first adjustable resistor, the other end of the second resistor is grounded, the other end of the first adjustable resistor is connected with the solar power supply unit in parallel, and an output end of the first relay outputs a first output power supply.
5. The intelligent machine power supply energy storage interactive switching system according to claim 1, wherein the second switching circuit comprises a second switching triode and a second relay, the second switching triode is an NPN triode, two input contacts of the second relay are respectively connected with the first switching circuit and the storage battery, the second relay is normally closed to connect with corresponding input contacts of the storage battery, a control end of the second relay is connected with an emitter of the second switching triode, a collector of the second switching triode is connected with one end of a third resistor, the other end of the third resistor is connected with an output end of the first switching circuit in parallel, a base of the second switching triode is connected with a common connection end of a fourth resistor and a second adjustable resistor, the other end of the fourth resistor is grounded, the other end of the second adjustable resistor is connected with an output end of the first switching circuit in parallel, and the output end of the second relay outputs a second output power supply.
6. The intelligent machine power supply energy storage interactive switching system according to claim 1, wherein the comparison circuit comprises a comparator, the comparator adopts an operational amplifier, a non-inverting input end of the comparator is connected with a sampling circuit, the sampling circuit is connected in parallel with a positive electrode of a storage battery, an inverting input end of the comparator is connected with a reference voltage, and an output end of the comparator is connected with a control circuit.
7. The intelligent machine power supply energy storage interactive switching system according to claim 6, wherein the control circuit comprises an N-channel field effect transistor, a gate electrode of the N-channel field effect transistor is connected with an output end of the comparator, a source electrode of the N-channel field effect transistor is grounded, a drain electrode of the N-channel field effect transistor is connected with one end of a fifth resistor, the other end of the fifth resistor is connected with an output end of the first switching circuit, and a control end of the charging switching transistor is connected with the drain electrode of the N-channel field effect transistor in parallel.
8. The intelligent machine power supply energy storage interactive switching system according to claim 7, wherein the charging switch tube comprises a third switch triode, the third switch triode is an NPN triode, a base electrode of the third switch triode is connected in parallel with a drain electrode of the N channel field effect tube, a collector electrode of the third switch triode is connected in parallel with an output end of the first switch circuit, and an emitter electrode of the third switch triode is connected in parallel with an anode of the storage battery.
9. The intelligent machine power supply energy storage interactive switching system according to claim 1, wherein the solar power supply unit comprises a solar panel, and the mains power supply unit comprises a rectifier transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311016229.XA CN116760171A (en) | 2023-08-14 | 2023-08-14 | Intelligent machine power supply energy storage interactive switching system |
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| CN211018390U (en) * | 2019-11-28 | 2020-07-14 | 青岛滨海学院 | Direct current power supply switching power supply system capable of being monitored |
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