CN211790843U - Solar intelligent charging control device - Google Patents
Solar intelligent charging control device Download PDFInfo
- Publication number
- CN211790843U CN211790843U CN202020398008.9U CN202020398008U CN211790843U CN 211790843 U CN211790843 U CN 211790843U CN 202020398008 U CN202020398008 U CN 202020398008U CN 211790843 U CN211790843 U CN 211790843U
- Authority
- CN
- China
- Prior art keywords
- solar
- charging control
- module
- control device
- control module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a solar energy intelligence charge control device, the device includes: the system comprises an MCU processing module, a solar main charging control module, a PWM charging control module, a solar voltage detection module and a battery voltage detection module; the input end of the solar main charging control module is electrically connected with a solar cell panel, a storage battery and a load which are arranged outside through wiring terminals respectively; the solar main charging control module, the PWM charging control module, the solar voltage detection module and the battery voltage detection module are respectively connected with the MCU processing module. The device has high reliability and strong practicability, not only improves the charging efficiency of the battery, but also prolongs the service life of the battery through the battery protection function.
Description
Technical Field
The utility model relates to an energy control field particularly, relates to a solar energy intelligence charging control device.
Background
Electric energy is an important guarantee for social development and economic construction, abundant human life is created by closely combining high technology, and meanwhile, the phenomenon of insufficient power supply in the global range is caused by wide application of the electric energy. The use of energy is always an important influence factor for the stable development of human beings, along with the increasing severity of the world energy crisis, the rapid development of world economy cannot be adapted by utilizing conventional energy, and the problem of excessive use of energy is required by all human beings. Solar energy has great advantages as a new energy source, is cheap and pollution-free, and is an energy source which can be freely utilized by human beings, so that solar photovoltaic power generation technology is under the impetus of research and development in all countries of the world. At present, the solar photovoltaic power generation device is widely applied to various aspects such as communication, traffic, electric power and the like.
In the case of solar photovoltaic power generation, since the output voltage of a general solar plate is unstable and the solar plate cannot be directly applied to a load, a charging control device capable of efficiently converting solar energy into electric energy and storing the electric energy in a storage battery is designed. However, how to ensure the combination of the corresponding charging circuits and realize the load detection and protection, the existing charging control device lacks a circuit for detecting and protecting the storage battery and the load, so that the solar storage battery controlled by the solar intelligent charging control device is unstable, and the service life of the storage battery can be reduced.
Disclosure of Invention
An object of the utility model is to overcome prior art not enough, the utility model provides a solar energy intelligence charge control device, the device can realize the function of charging based on solar cell panel, and its corresponding circuit has the function that detects and protect battery and load, and the reliability is high, will prolong the life of battery.
Correspondingly, the utility model provides a solar energy intelligence charging control device, the device includes: the system comprises an MCU processing module, a solar main charging control module, a PWM charging control module, a solar voltage detection module and a battery voltage detection module;
the solar main charging control module comprises a wiring terminal, an overvoltage protection unit, a large-current voltage stabilizing unit, a small-current voltage stabilizing unit and a load control circuit; the input end of the solar main charging control module is electrically connected with a solar cell panel, a storage battery and a load which are arranged outside through the wiring terminal; the input end of the overvoltage protection unit is connected with the wiring terminal, and the output end of the overvoltage protection unit is respectively connected with the input end of the large-current voltage stabilizing unit and the input end of the small-current voltage stabilizing unit; the output end of the large-current voltage stabilizing unit is connected with the load control circuit; the output end of the small current voltage stabilizing unit is provided with a first USB connector and a second USB connector;
the solar main charging control module, the PWM charging control module, the solar voltage detection module and the battery voltage detection module are respectively connected with the MCU processing module.
In an optional implementation manner, the MCU processing module adopts a processing chip with model number SN8F27E 23.
In an optional embodiment, the low-current voltage stabilizing unit is a DC-DC converter, an input end of the DC-DC converter is connected to an output end of the overvoltage protection unit, output ends of the DC-DC converter are respectively connected to the first USB connector and the second USB connector, and a control end of the DC-DC converter is connected to the processing chip.
In an alternative embodiment, the overvoltage protection unit is a varistor.
In an optional implementation manner, the device further includes a temperature detection circuit, the temperature detection circuit includes a voltage dividing resistor and a thermistor, one end of the voltage dividing resistor is connected to the 5V dc power supply, the other end of the voltage dividing resistor is connected to the processing chip and one end of the thermistor respectively, and the other end of the thermistor is directly grounded.
In an optional implementation manner, the apparatus further includes a switch control module, where the switch control module includes three switch control units, and the three switch control units are respectively connected to the processing chip.
In an optional implementation manner, the device further includes a status display module, the status display module is an LCD display screen, and the LCD display screen is connected to the processing chip.
In an optional embodiment, the solar panel is a crystalline silicon photovoltaic module or a thin film photovoltaic module.
The embodiment of the utility model provides an in, charge control device has realized that solar charging control device has under based on this kind of hardware module of solar energy main charging control module to solar cell panel's the function control of charging, this charge control device has simultaneously and carries out the function and the effect that real-time detection shows and PWM secondary adjustment to solar cell panel's voltage and the voltage of battery through MCU processing module, and through being provided with charge protection, overvoltage protection, circuit such as temperature protection, can guarantee to improve charge control device's charge efficiency to the utmost, prolong battery life, dependable performance and practicality are strong. In addition, the charging control device adopts a charging mode with double USB interfaces, accords with multifunctional expansion performance, and can be suitable for solar charging in various forms.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural component diagram of a solar intelligent charging control device disclosed in an embodiment of the present invention;
fig. 2 is a circuit structure diagram of the MCU processing module disclosed in the embodiment of the present invention;
fig. 3 is a circuit structure diagram of a solar main charging control module disclosed in the embodiment of the present invention;
fig. 4 is a circuit structure diagram of a solar voltage detection module disclosed in the embodiment of the present invention;
fig. 5 is a circuit structure diagram of a battery voltage detection module disclosed in the embodiment of the present invention;
fig. 6 is a circuit structure diagram of a PWM charging control module disclosed in an embodiment of the present invention;
fig. 7 is a schematic circuit diagram of a switch control module according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural component diagram of a solar intelligent charging control device in an embodiment of the present invention.
As shown in fig. 1, a solar intelligent charging control device includes: the system comprises an MCU processing module, a solar main charging control module, a PWM charging control module, a solar voltage detection module and a battery voltage detection module; the solar energy main charging control module, the PWM charging control module, the solar energy voltage detection module and the battery voltage detection module are respectively connected with the MCU processing module.
It should be noted that, as shown in fig. 2, the MCU processing module adopts a processing chip U4 with model number SN8F27E23, and the processing chip U4 is a single chip microcomputer with Flash a/D module, so that the device has wide operating voltage range, low power consumption and high reliability, and can respond to the input and output of each module in the charging control device in time; in addition, the processing chip U4 is provided with an A/D module, so that the problem that the charging control device samples the output current and the output voltage of the solar cell panel in real time is solved, and the cost of the charging control device can be reduced.
Further, fig. 3 shows a circuit structure diagram of a solar main charging control module in an embodiment of the present invention, where the solar main charging control module includes a connection terminal J1, an overvoltage protection unit, a large current voltage stabilization unit, a small current voltage stabilization unit, and a load control circuit; the input end of the solar main charging control module is electrically connected with an external solar cell panel, a storage battery and a load through the wiring terminal J1; the input end of the overvoltage protection unit is connected with the wiring terminal J1, and the output end of the overvoltage protection unit is respectively connected with the input end of the large-current voltage stabilizing unit and the input end of the small-current voltage stabilizing unit; the output end of the large-current voltage stabilizing unit is connected with the load control circuit; and the output end of the low-current voltage stabilizing unit is provided with a first USB connector and a second USB connector.
In the embodiment of the utility model, the input of solar energy owner control module that charges passes through binding post J1's pin 5 and pin 6 are connected solar cell panel, through binding post J1's pin 3 and pin 4 are connected the battery, through binding post J1's pin 1 and pin 2 are connected the load. The connection terminal J1 can separate the charging control device from the power supply assembly and the load of the peripheral equipment, and the power supply assembly and the load can be replaced at any time.
The overvoltage protection unit is a piezoresistor RV1, one end of the piezoresistor RV1 is respectively connected with the solar panel, the storage battery and the positive input end of the load, and the other end of the piezoresistor RV1 is directly grounded; the overvoltage protection unit further comprises a current limiting resistor R14 and a protection diode D2. The utility model discloses in the implementation, be the 47V piezo-resistor RV1 of 7D470 through the parallelly connected model at the charging voltage input end, work as solar cell panel's input voltage is punctured when reaching 47V, prevents to damage because of the high pressure that the unexpected condition produced charge control device with the battery has the lightning protection effect.
The low-current voltage stabilizing unit is a DC-DC converter U1, the input end of the DC-DC converter U1 is connected with the output end of the overvoltage protection unit, the output end of the DC-DC converter U1 is respectively connected with the first USB connector USB1 and the second USB connector USB2, and the control end of the DC-DC converter U1 is connected with the processing chip U4. Specifically, the input end of the DC-DC converter U1 is connected to the reverse end of the protection diode D2, and when the input voltage of the solar panel is detected by the overvoltage protection unit, the input voltage flows through the DC-DC converter U1, and performs the solar maximum power point tracking by combining the power supply information provided by the processing chip U4, so as to output a stable power supply voltage to the two USB connectors.
It should be noted that the DC-DC converter U1 is a 150KHz fixed frequency pulse width modulation (buck) DC/DC conversion chip with model XL1509-5.0V, has good load driving capability and high voltage conversion efficiency, can adjust output voltage with minimum external elements, and is built-in with overcurrent protection and short circuit protection functions. The embodiment of the utility model provides an in, according to the electrical information that solar cell panel input, through the inside of DC-DC converter U1 carries out the regulation of self parameter to this execution solar energy maximum power point trails, can guarantee that photovoltaic cell works at maximum power point all the time.
The input end of the high-current voltage stabilizing unit is connected with the reverse end of the protection diode D2, the high-current voltage stabilizing unit mainly comprises a switching triode Q2, a three-terminal voltage regulator Q4 and a voltage stabilizing diode D3, and due to the voltage stabilizing characteristic of the three-terminal voltage regulator Q4, the switching triode Q2 is in a conducting state, and at the moment, the input voltage of the solar cell panel is converted into +5V stable direct current voltage which is used as the power supply requirement of each module in the charging control device; due to the voltage stabilizing effect of the voltage stabilizing diode D3, the input voltage of the solar panel is directly converted into a stable direct current voltage of +12V, and the stable direct current voltage is mainly provided for the charging voltage of the storage battery and the load.
The output end of the large-current voltage stabilizing unit is connected with the load control circuit, the load control circuit mainly comprises a double-MOSFET tube control circuit, a fuse RN1, a switch triode Q3 and an operational amplifier U3A, and the double-MOSFET tube control circuit is controlled by the solar panel end. In the implementation process, when the load is short-circuited, the LAMP-port of the solar panel controls the double-MOSFET tube control circuit to be in a conducting state through a light control effect, the generated short-circuit current directly fuses the fuse RN1, and then the switching triode Q3 is controlled to be conducted according to the comparison result of the operational amplifier U3A, at this time, the processing chip U4 identifies the short-circuit condition of the load through the 'PWMLAMP LAMP switch' port, and corresponding protection measures are taken.
Further, fig. 4 shows the circuit structure diagram of the solar voltage detection module in the embodiment of the present invention, the core device of the solar voltage detection module is operational amplifier U3C, in the specific implementation process, the solar voltage detection module will be based on the current input voltage of the solar cell panel, utilize the comparison function of operational amplifier U3C and the voltage division effect of resistor R40 output a level signal at the "TES SUN solar voltage detection" port, so that the processing chip U4 judges the current working condition of the solar cell panel by identifying the level signal.
Further, fig. 5 shows the circuit structure diagram of battery voltage detection module in the embodiment of the present invention, battery voltage detection module works based on the voltage dividing principle of resistance R12 and resistance R35, the one end of resistance R12 is connected the positive input end of battery, resistance R35 directly connects to ground, handle chip U4 and will pass through the voltage signal of discernment "TES BA" port, judge the current voltage size of battery, it is right the battery plays safety inspection's effect.
Further, fig. 6 shows the circuit structure diagram of the PWM charging control module in the embodiment of the present invention, and fig. 7 shows the circuit structure diagram of the switching control module in the embodiment of the present invention, the switching control module includes three switching control units, and the three switching control units are respectively connected to the processing chip U4. Specifically, the control basis of the PWM charging control module indirectly comes from the working state of the switch control module, and since the charging mode of the charging control device has three stages of forced charging, equalizing charging and floating charging, the three switch control units have the switches K1, K2 and K3 closed to correspond to the charging operation in the three stages, respectively. It should be noted that, the charging modes in the above three stages all correspond to a voltage limited range, the current voltage of the storage battery identified by the processing chip U4 is utilized to determine the voltage limited range in which the current voltage is located, and then a corresponding switch is controlled to be closed, at this time, the processing chip U4 generates a corresponding PWM switching signal, and sends the PWM switching signal to the PWM charging control module through the "solar PWM charging control" port, and the PWM charging control module is controlled to adjust the charging mode of the charging control device in time according to the PWM switching signal, so as to prevent the temperature of the storage battery from continuously rising, and play a role in charging protection, thereby prolonging the service life of the storage battery.
Further, as shown in fig. 2, the apparatus further includes a temperature detection circuit, the temperature detection circuit includes a voltage divider R5 and a thermistor RTC1, one end of the voltage divider R5 is connected to a 5V dc power supply, the other end of the voltage divider R5 is connected to one end of the processing chip U4 and one end of the thermistor RTC1, and the other end of the thermistor RTC1 is directly grounded. In the embodiment of the present invention, the thermistor RTC1 can automatically detect the battery and the internal environment temperature of the charging control device, so as to improve the safety and reliability of the charging control device.
Further, as shown in fig. 2, the device further includes a status display module, the status display module is an LCD display screen, and the LCD display screen is connected to the processing chip U4. The LCD display screen is used for visually displaying various identification results of the processing chip U4, including load short circuit conditions, ambient temperature, solar cell panel voltage, storage battery voltage and the like, so that an operator can conveniently know the current running condition of the charging control device to make timely response.
The embodiment of the utility model provides an in, charge control device has realized that solar charging control device has under based on this kind of hardware module of solar energy main charging control module to solar cell panel's the function control of charging, this charge control device has simultaneously and carries out the function and the effect that real-time detection shows and PWM secondary adjustment to solar cell panel's voltage and the voltage of battery through MCU processing module, and through being provided with charge protection, overvoltage protection, circuit such as temperature protection, can guarantee to improve charge control device's charge efficiency to the utmost, prolong battery life, dependable performance and practicality are strong. In addition, the charging control device adopts a charging mode with double USB interfaces, accords with multifunctional expansion performance, and can be suitable for solar charging in various forms.
The solar intelligent charging control device provided by the embodiment of the present invention is described in detail above, and the principle and the implementation of the present invention are explained by using specific examples herein, and the description of the above embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (8)
1. A solar intelligent charging control device, characterized in that the device comprises: the system comprises an MCU processing module, a solar main charging control module, a PWM charging control module, a solar voltage detection module and a battery voltage detection module;
the solar main charging control module comprises a wiring terminal, an overvoltage protection unit, a large-current voltage stabilizing unit, a small-current voltage stabilizing unit and a load control circuit; the input end of the solar main charging control module is electrically connected with a solar cell panel, a storage battery and a load which are arranged outside through the wiring terminal; the input end of the overvoltage protection unit is connected with the wiring terminal, and the output end of the overvoltage protection unit is respectively connected with the input end of the large-current voltage stabilizing unit and the input end of the small-current voltage stabilizing unit; the output end of the large-current voltage stabilizing unit is connected with the load control circuit; the output end of the small current voltage stabilizing unit is provided with a first USB connector and a second USB connector;
the solar main charging control module, the PWM charging control module, the solar voltage detection module and the battery voltage detection module are respectively connected with the MCU processing module.
2. The solar intelligent charging control device of claim 1, wherein the MCU processing module is a processing chip with model number SN8F27E 23.
3. The solar intelligent charging control device according to claim 2, wherein the low-current voltage stabilizing unit is a DC-DC converter, an input end of the DC-DC converter is connected to an output end of the overvoltage protection unit, output ends of the DC-DC converter are respectively connected to the first USB connector and the second USB connector, and a control end of the DC-DC converter is connected to the processing chip.
4. The solar intelligent charging control device of claim 3, wherein the overvoltage protection unit is a voltage dependent resistor.
5. The solar intelligent charging control device according to claim 2, further comprising a temperature detection circuit, wherein the temperature detection circuit comprises a voltage divider resistor and a thermistor, one end of the voltage divider resistor is connected to a 5V dc power supply, the other end of the voltage divider resistor is connected to the processing chip and one end of the thermistor, and the other end of the thermistor is directly grounded.
6. The solar intelligent charging control device of claim 2, further comprising a switch control module, wherein the switch control module comprises three switch control units, and the three switch control units are respectively connected to the processing chip.
7. The solar intelligent charging control device of claim 2, further comprising a status display module, wherein the status display module is an LCD display screen, and the LCD display screen is connected with the processing chip.
8. The solar intelligent charging control device of claim 1, wherein the solar panel is a crystalline silicon photovoltaic module or a thin film photovoltaic module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020398008.9U CN211790843U (en) | 2020-03-25 | 2020-03-25 | Solar intelligent charging control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020398008.9U CN211790843U (en) | 2020-03-25 | 2020-03-25 | Solar intelligent charging control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211790843U true CN211790843U (en) | 2020-10-27 |
Family
ID=72932024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020398008.9U Active CN211790843U (en) | 2020-03-25 | 2020-03-25 | Solar intelligent charging control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211790843U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115547245A (en) * | 2022-10-19 | 2022-12-30 | 深圳市万屏时代科技有限公司 | Intelligent control system for LED display screen |
-
2020
- 2020-03-25 CN CN202020398008.9U patent/CN211790843U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115547245A (en) * | 2022-10-19 | 2022-12-30 | 深圳市万屏时代科技有限公司 | Intelligent control system for LED display screen |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201119053Y (en) | Intelligent control device for solar luminescent street lamp | |
| CN201781293U (en) | Intelligent solar charge-discharge controller | |
| CN101242107B (en) | Self-adaptive solar charging controller | |
| CN204651906U (en) | A kind of automobile emergency starts battery safety folder | |
| CN202856408U (en) | Vehicle-borne photovoltaic charging device for electric vehicle | |
| CN201114914Y (en) | An intelligent load detection control device for solar street lamp | |
| CN102570525A (en) | PSoC (Programmable System on Chip)-based MPPT (Maximum Power Point Tracking) type solar charge controller | |
| CN211790843U (en) | Solar intelligent charging control device | |
| CN113937865A (en) | Battery management system and power supply system | |
| CN213934122U (en) | Relay working state detection system and device | |
| CN202586382U (en) | Photovoltaic off-grid 48V control power supply possessing charging and discharging function | |
| CN109017425A (en) | New energy electric motor vehicle charging control circuit | |
| CN203632903U (en) | Solar street lamp controller | |
| CN204597597U (en) | A kind of domestic solar electric power system | |
| CN208522519U (en) | A kind of photovoltaic power generation electric storage device | |
| CN109655675A (en) | A kind of charger phase three-wire three phase shortage decision circuitry | |
| CN216312735U (en) | Battery management system and power supply system | |
| CN201904633U (en) | MPPT type solar charge controller based on PSoC | |
| CN204835678U (en) | Charging system | |
| CN209627756U (en) | A kind of solar street lamp controller load protection system | |
| CN209313470U (en) | A kind of protection circuit that car emergency startup power supply is docked with automobile starting battery | |
| CN211127281U (en) | Solar UPS power supply circuit | |
| CN202759270U (en) | Solar charge controller | |
| CN203086791U (en) | Acousto-optic double-control timing control circuit and floodlight | |
| CN108879803B (en) | Quick automatic bridging system for ultra-low power consumption large-current storage battery and implementation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |