CN215870826U - Series-parallel solar input mobile charging system - Google Patents
Series-parallel solar input mobile charging system Download PDFInfo
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- CN215870826U CN215870826U CN202121733522.4U CN202121733522U CN215870826U CN 215870826 U CN215870826 U CN 215870826U CN 202121733522 U CN202121733522 U CN 202121733522U CN 215870826 U CN215870826 U CN 215870826U
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 25
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 15
- 239000003990 capacitor Substances 0.000 claims description 12
- 230000005611 electricity Effects 0.000 claims description 9
- 101100102627 Oscarella pearsei VIN1 gene Proteins 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 6
- 101100489713 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) GND1 gene Proteins 0.000 claims description 3
- 238000007599 discharging Methods 0.000 abstract description 4
- 238000010248 power generation Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract 1
- 230000006870 function Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The utility model discloses a series-parallel connection solar input mobile charging system, which relates to the technical field of mobile charging and comprises a shell, wherein a storage battery and a circuit board are fixedly arranged inside the shell, a solar conversion plate is fixedly arranged outside the shell, the storage battery is connected with an anode B +, the circuit board is connected with a USB-A port and a USB-C port, an A circuit, a B circuit and a C circuit are arranged in the circuit board, the A circuit is a charging conversion storage circuit of the solar conversion plate and the storage battery, and the A circuit comprises a charging circuit, a discharging circuit and a lithium battery protection circuit. According to the utility model, through the circuit design and technology of series-parallel connection input of solar energy, solar energy is directly converted into electric energy to charge the built-in battery and the mobile power supply for solar energy input power generation, so that the utilization rate of light load is improved, the solar energy charging system can be used in the environment without a municipal power grid, and the practicability of the system is greatly improved.
Description
Technical Field
The utility model relates to the technical field of mobile charging, in particular to a series-parallel solar input mobile charging system.
Background
The portable Power source (MPP), also called a charger baby, a travel charger, and the like, is a portable charger integrating Power supply and charging functions, and can charge digital devices such as Mobile phones and tablet computers at any time and any place. Generally by the lithium cell (or dry battery, less often) as the electricity storage unit, convenient to use is swift, but the charging of current portable power source all generally is that municipal power network charges, and single portable power source's capacity is fixed, and the live time after the single charges is long, need wear the charger, inconvenient outdoor survival uses.
And solar energy input power generation's portable power source user demand is higher and higher, uses more and more extensively, and along with the improvement of standard of living, solar energy uses and will help the outdoor use to save electric power, the resource consumption of wind-fire power electricity generation, but a novel portable power source of solar energy input is consequently needed urgently.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a series-parallel connection solar input mobile charging system to overcome the defects in the prior art.
In order to achieve the above purpose, the utility model provides the following technical scheme: the utility model provides a series-parallel solar energy input mobile charging system, includes the casing, the inside fixed mounting of casing has battery and circuit board, the outside fixed mounting of casing has the solar energy conversion board, the battery is connected with anodal B +, the circuit board is connected with USB-A mouth and USB-C mouth, be provided with A circuit, B circuit and C circuit in the circuit board, A circuit is the charge conversion memory circuit of solar energy conversion board and battery, A circuit contains charging circuit, discharge circuit and lithium cell protection circuit, B circuit is the input circuit of series-parallel series-parallel solar energy conversion board, according to the intensity of outdoor sunshine, automatic switch converts parallelly connected input solar energy or series input solar energy into, B circuit includes series connection input mode circuit and parallelly connected input mode circuit, C circuit is MCU control circuit, and judging and switching according to the voltage of the detected VIN _ Vdc, and controlling the serial-parallel input mode.
Preferably, in the charging circuit in the part a circuit, the current enters from the USB-C port, enters from the Vbus port into the U1(IP5356), is filtered by the external main filter electricity C18, C19, C20, C21, and C22 through voltage reduction, and then is filtered to B + through the L1 inductor, C9, C11, C12, and C14, and is connected to GND through the U3(XB89 8989AF) lithium battery control chip, so as to form a charging circuit, thereby storing the electric power for the battery.
Preferably, in the discharge circuit in the a-section circuit, the current is discharged from the positive electrode B + of the battery through the filter capacitors C9, C11, C12 and C14 by the L1 inductor, enters the LX pin of U1(IP5356), is converted from internal voltage boosting, and is filtered by the bypass capacitors C9, C11, C12 and C14 to be divided into 2 paths; one path is output through an VOU1 port to a USB-A interface, and the other path is output through a VBUS port and a USB-C port.
Preferably, in the series input mode circuit of the B-section circuit, the current is connected from SUN _ VIN1 to the solar converter, is output via SUN _ GND1 to turn on Q3 to be connected to SUN _ VIN2, and is turned on again to turn on Q4 to be connected to the SUN _ VIN port, passes through the D1 and D2 diodes, reaches the VIN port of U1, enters U1(IP5356), is filtered by the external main filter capacitors C18, C19, C20, C21 and C22 through step-down conversion, and then is filtered to the positive electrode B + of the battery via the L1 inductor, C9, C11, C12 and C14, and is connected to GND again through the U3(XB89 8989AF) lithium battery control chip to the USB-C GND to form a charging loop, so as to charge the internal battery.
Preferably, in the parallel input mode circuit of the B-section circuit, the current is connected from SUN _ VIN1 to the solar panel, is conductively connected to SUN _ VIN via on Q1, is connected from SUN _ VIN2 to the solar panel, is conductively connected to SUN _ VIN via on Q4, is connected to the SUN _ VIN port, passes through the D1, D2 diode, is connected to the VIN port of U1, is connected to the inside of U1(IP5356), is filtered by the external main filter capacitors C18, C19, C20, C21, C22 through step-down conversion, and is then connected to GND through the L1 inductor, C9, C11, C12, C14, and is connected to GND again through the U3(XB89 8989AF) lithium battery control chip to GND, thereby forming a charging loop to charge the internal battery.
In the technical scheme, the utility model provides the following technical effects and advantages:
according to the solar energy series-parallel input mobile power supply, the design and the time sequence control requirements of the logic control circuit of the solar energy series-parallel input circuit are adopted, the utilization rate of light load can be improved, quick charging under different illumination is considered, and then the solar energy charging system directly converts solar energy into electric energy to charge the built-in battery and the mobile power supply for solar energy input power generation.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is an overall circuit diagram of the A, B and C circuits of the present invention.
Fig. 3 is a logic explanatory diagram of MCU pin definition in the C circuit of the present invention, in which pin 1 is a power supply pin, pins 2, 3, 4 and 7 are mos tube control pins, pin 5 is a serial-parallel switching voltage detection pin, and pin 6 is a solar LED lamp display control pin.
Description of reference numerals:
1. a housing; 2. a storage battery; 3. a solar energy conversion panel; 4. a circuit board.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
The utility model provides a further technical scheme as shown in fig. 1, in the above technical scheme, a series-parallel connection solar input mobile charging system comprises a housing 1, a storage battery 2 and a circuit board 4 are fixedly installed inside the housing 1, a solar conversion plate 3 is fixedly installed outside the housing 1, the storage battery 2 is connected with a positive electrode B +, the circuit board 4 is connected with a USB-a port and a USB-C port, an a part circuit, a B part circuit and a C part circuit are arranged in the circuit board 4, the a part circuit is a charging conversion storage circuit of the solar conversion plate 3 and the storage battery 2, the a part circuit comprises a charging circuit, a discharging circuit and a lithium battery protection circuit, the B part circuit is an input circuit of the series-parallel connection solar conversion plate 3, and is automatically switched and converted into parallel input solar energy or series input solar energy according to the intensity of outdoor sunlight, the circuit of the part B comprises a series input mode circuit and a parallel input mode circuit, the circuit of the part C is an MCU control circuit, and the circuit of the part C is used for judging and switching according to the voltage of the detected VIN _ Vdc and controlling the input mode of series-parallel connection.
Furthermore, in the above technical solution, the a-part circuit is a mobile power supply part for solar energy input power generation, and the a-part circuit mainly functions as a charge conversion and storage function for a built-in battery, and includes a charging circuit, a discharging circuit, a lithium battery protection circuit, and other main circuits;
in the charging circuit in the A part circuit, current enters from a USB-C port, enters into the U1(IP5356) from a Vbus port, is filtered by external main filter electricity C18, C19, C20, C21 and C22 through voltage reduction conversion, then is filtered to B + through an L1 inductor, C9, C11, C12 and C14, and is connected with GND of the USB-C through a U3(XB8989AF) lithium battery control chip to form a charging circuit to store electricity for the storage battery 2.
In a discharge circuit in the A part circuit, current is discharged from an anode B + of the storage battery 2 through filter capacitors C9, C11, C12 and C14 and an L1 inductor, enters an LX pin of U1(IP5356), is converted from internal boosting, is filtered through bypass capacitors C9, C11, C12 and C14 and is divided into 2 paths; one path is output through an VOU1 port, and is output to a USB-A interface, and the power of QC3.0 is output to the outside: 5V/3A, 9V/2A, 12V/1.5A; the other path is output through a VBUS port and a USB-C port, and the external output power PD20W MAX is 5V/3A, 9V/2.22A and 12V/1.67A;
in the discharge circuit in the A part circuit, the recovery is formed by circuits such as a positive electrode B +, U3(XB8989AF), R14, C17, GND, a negative electrode B-and the like, and is used for protecting the charging and discharging characteristics of the battery so as to prevent abnormal risks such as overcharge, overdischarge, overcurrent and the like.
Further, in the above technical solution, the B circuit is a series-parallel input solar connection circuit, and its main function is to automatically switch to parallel input solar energy or series input solar energy according to the outdoor sunlight intensity;
in the series input mode circuit of the B-portion circuit, current is switched in from SUN _ VIN1 to the solar conversion panel 3, is output via SUN _ GND1 to turn on Q3 to be connected to SUN _ VIN2, and is turned on again to turn on Q4 to enter a SUN _ VIN port, and passes through a D1, D2 diode, a VIN port of U1 to enter U1(IP5356), and is filtered by external main filter capacitors C18, C19, C20, C21, and C22 through step-down conversion, and then is filtered to an anode B + of the storage battery 2 through L1 inductors, C9, C11, C12, and C14, and is connected to GND through a U3(XB8989AF) lithium battery control chip to the GND to form a GND charging loop with the GND of the USB-C to charge the internal battery, wherein SUN _ 2 is connected to the GND as a ground line;
in the parallel input mode circuit of the B part circuit, current is connected into a solar panel from SUN _ VIN1, is connected to SUN _ VIN in a conduction mode through an opening Q1, is connected to the solar panel from SUN _ VIN2, is connected to SUN _ VIN in a conduction mode through an opening Q4, enters an SUN _ VIN port, passes through D1 and D2 diodes, enters a VIN port of U1, enters the inside of U1(IP5356), is filtered by external main filter capacitors C18, C19, C20, C21 and C22 through voltage reduction conversion, then is filtered to B + through an L1 inductor, C9, C11, C12 and C14, and is connected to GND of a USB-C through a U3(XB89 AF) lithium battery control chip again to form a GND charging loop, and is used for storing the internal battery, wherein SUN _ VIN2 is connected to GND as a ground wire, and an output opening Q68628 is connected to GND.
Further, in the above technical solution, the C-part circuit is an MCU control module, and its main function controls the serial-parallel input mode, and actually performs the switching judgment according to the detected VIN _ Vdc voltage; the specific functions are as follows:
the product is composed of a 2PCS solar light panel, the output power is 5.5V/3W, and the series connection or parallel connection mode can be carried out through a circuit;
firstly, accessing solar energy to be placed in the sunlight, and opening a parallel input mode by default;
when the 5 th pin VIN _ Vdc of the MCU detects the input voltage value, if the voltage value is more than or equal to 3.0V, the voltage at the SUN _ VIN is judged to be more than or equal to 6V, and the series mode is started. When the 5 th pin VIN _ Vdc of the MCU detects an input voltage value, if the voltage is less than or equal to 3.0V, the voltage at the SUN _ VIN is judged to be less than or equal to 6V, and the parallel mode is automatically switched;
when sunlight is charged, the blue LED is on for long time, otherwise, the LED lamp is turned off;
the implementation mode is specifically as follows: through the circuit design and the technique of the input that use solar energy cluster and parallel-series, the design and the time sequence control requirement of the logic control circuit of the input that adopt solar energy cluster and parallel-series, can promote the utilization ratio to the light load, compromise and can charge fast under different illumination, and then make solar charging system directly convert solar energy into the electric energy and charge to the portable power source of its built-in battery and solar energy input electricity generation, need not municipal power grid power supply, also can use in the environment that does not have municipal power grid, and need not additionally to install the power cord, high durability and convenient installation, when the service environment is wide, solar charging system directly converts solar energy into the electric energy and charges to the portable power source of its built-in battery and solar energy input electricity generation, energy conservation and environmental protection.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the utility model.
Claims (5)
1. The utility model provides a series-parallel solar energy input removes charging system, includes casing (1), the inside fixed mounting of casing (1) has battery (2) and circuit board (4), the outside fixed mounting of casing (1) has solar energy conversion board (3), battery (2) are connected with anodal B +, circuit board (4) are connected with USB-A mouth and USB-C mouth, its characterized in that: be provided with A portion circuit, B portion circuit and C portion circuit in circuit board (4), A portion circuit is the conversion memory circuit that charges of solar energy converting panel (3) and battery (2), A portion circuit contains charging circuit, discharge circuit and lithium cell protection circuit, B portion circuit is the input circuit of solar energy converting panel (3) of cluster and series-parallel connection, according to the power of outdoor sunshine, automatic switch-over converts parallel input solar energy or series input solar energy into, B portion circuit is including series input mode circuit and parallel input mode circuit, C portion circuit is MCU control circuit, according to the voltage that detects VIN _ Vdc, judges the switching, controls the input mode of cluster and series-parallel connection.
2. The series-parallel solar input mobile charging system of claim 1, wherein: in the charging circuit in the A part circuit, current enters from a USB-C port, enters into the U1(IP5356) from a Vbus port, is filtered by external main filter electricity C18, C19, C20, C21 and C22 through voltage reduction and conversion, then is filtered to B + through an L1 inductor, C9, C11, C12 and C14, and is connected with GND of the USB-C through a U3(XB8989AF) lithium battery control chip to form a charging circuit to store electricity for the storage battery (2).
3. The series-parallel solar input mobile charging system of claim 1, wherein: in a discharge circuit in the A part circuit, current is discharged from an anode B + of a storage battery (2) through filter capacitors C9, C11, C12 and C14 and an L1 inductor, enters an LX pin of U1(IP5356), is converted from internal boosting, is filtered through bypass capacitors C9, C11, C12 and C14 and is divided into 2 paths; one path is output through an VOU1 port to a USB-A interface, and the other path is output through a VBUS port and a USB-C port.
4. The series-parallel solar input mobile charging system of claim 1, wherein: in the series input mode circuit of the B part circuit, current is connected into a solar conversion panel (3) from SUN _ VIN1, is connected to SUN _ VIN2 in a conduction mode through an SUN _ GND1 output, is switched on by Q3, is switched on again by Q4, enters an SUN _ VIN port, passes through a D1 diode and a D2 diode, enters an U1 VIN port, enters the U1(IP5356), is filtered by an external main filter capacitor C18, C19, C20, C21 and C22 through voltage reduction and conversion, then is filtered to a positive electrode B + of a storage battery (2) through an L1 inductor, C9, C11, C12 and C14, and is connected with GND of a USB-C through a U3(XB8989AF) lithium battery control chip to form a charging loop, and the internal battery is charged.
5. The series-parallel solar input mobile charging system of claim 1, wherein: in the parallel input mode circuit of the B part circuit, current is connected to a solar panel from SUN _ VIN1, is connected to SUN _ VIN in a conducting mode through an opening Q1, is connected to the solar panel from SUN _ VIN2, is connected to SUN _ VIN in a conducting mode through an opening Q4, enters an SUN _ VIN port, passes through a D1 diode and a D2 diode, reaches a VIN port of U1, enters the U1(IP5356), is filtered to B + by external main filter capacitors C18, C19, C20, C21 and C22 through voltage reduction conversion, then is filtered to GND through an L1 inductor, C9, C11, C12 and C14, and is connected to GND of a USB-C through a U3(XB8989AF) lithium battery control chip to form a charging loop, and the internal battery is charged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121733522.4U CN215870826U (en) | 2021-07-28 | 2021-07-28 | Series-parallel solar input mobile charging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121733522.4U CN215870826U (en) | 2021-07-28 | 2021-07-28 | Series-parallel solar input mobile charging system |
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| Publication Number | Publication Date |
|---|---|
| CN215870826U true CN215870826U (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121733522.4U Active CN215870826U (en) | 2021-07-28 | 2021-07-28 | Series-parallel solar input mobile charging system |
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| CN (1) | CN215870826U (en) |
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2021
- 2021-07-28 CN CN202121733522.4U patent/CN215870826U/en active Active
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