CN211579664U

CN211579664U - Solar mobile phone charger

Info

Publication number: CN211579664U
Application number: CN202020556548.5U
Authority: CN
Inventors: 刘景景; 桂传友; 钱子阳; 杨健
Original assignee: Chizhou University
Current assignee: Chizhou University
Priority date: 2020-04-15
Filing date: 2020-04-15
Publication date: 2020-09-25
Anticipated expiration: 2030-04-15

Abstract

The utility model provides a solar mobile phone charger relates to charger technical field, including solar cell panel, DC/DC converter, first data acquisition module, second data acquisition module, MPPT module, microcontroller, liquid crystal display module, GPS orientation module, lithium cell, USB interface module, wireless transmitting module, wireless receiving module. The solar mobile phone charger adopts the solar cell panel to charge the mobile phone charger, can conveniently carry out outdoor charging, and the MPPT module can realize that the solar cell outputs power with the maximum power, thereby improving the charging efficiency of the charger; the wireless transmitting module and the wireless receiving module can realize wireless charging of the charger.

Description

Solar mobile phone charger

Technical Field

The utility model relates to a charger technical field, concretely relates to solar energy cell-phone charger.

Background

Along with the continuous improvement of living standard of people, people who carry mobile phones with them are more and more, and along with the screen of smart mobile phone is bigger and bigger, power consumption is also more and more. Mobile phones have become indispensable portable electronic products in people's daily life. Although the power consumption of a single charge of a single mobile phone seems negligible, the charge consumption should not be ignored since it is a large and widespread product. The popularization of mobile phones and the wide use of rechargeable batteries, the use of chargers is more and more widespread. The traditional mobile phone charger can charge a mobile phone only by a socket, but cannot provide a charging way for some remote places, and inconvenience is brought to people once a power failure condition occurs and the phone is urgently needed. When the mobile phone is charged, the mobile phone needs to be fixed in a certain range, so that the charging time is insufficient in case of emergency, and the service life of the mobile phone is influenced to a certain extent.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a to the defect problem of above-mentioned prior art, a solar energy cell-phone charger is provided.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

a solar mobile phone charger comprises a solar cell panel, a DC/DC converter, a first data acquisition module, a second data acquisition module, an MPPT module, a microcontroller, a liquid crystal display module, a GPS positioning module, a lithium battery, a USB interface module, a wireless transmitting module and a wireless receiving module. The solar cell panel, the DC/DC converter and the lithium battery are sequentially connected; the first data acquisition module is connected with the solar cell panel and the microcontroller, acquires voltage and current signals of the solar cell panel and transmits the acquired signals to the microcontroller; the second data acquisition module is connected with the DC/DC converter and the microcontroller, acquires an output voltage and current signal of the DC/DC converter and transmits the acquired signal to the microcontroller; the MPPT module is connected with the DC/DC converter and the microcontroller, and the microcontroller outputs a PWM signal through the MPPT module according to voltage and current signals acquired by the first data acquisition module and the second data acquisition module, and controls the DC/DC converter to work so that the solar cell panel works in a maximum power output state; the liquid crystal display module, the GPS positioning module, the wireless transmitting module and the USB interface module are respectively connected with the microcontroller through peripheral circuits of the microcontroller; the lithium battery is connected with the wireless transmitting module and supplies power for the wireless transmitting module, and the wireless transmitting module and the wireless receiving module perform wireless power transmission through the coil.

According to an embodiment of the present invention, the microcontroller is a single chip microcomputer, and the single chip microcomputer is PIC16F 877.

According to the utility model discloses an embodiment, the liquid crystal display module is 1602 liquid crystal display.

According to the utility model discloses an embodiment, DC/DC converter includes electric capacity C1, electric capacity C2, zener diode D1, inductance L1, control chip U1, control chip U1 is LM2596, LM 2596's 1 foot and electric capacity C1 one end, solar cell panel's positive pole links to each other, solar cell panel's negative pole ground connection, electric capacity C1 other end ground connection, LM 2596's 3 feet and 5 foot ground connection, LM 2596's 4 feet link to each other with the output of MPPT module, LM 2596's 2 feet and zener diode D1 negative pole, inductance L1 one end links to each other, zener diode D1 positive pole ground connection, the inductance L1 other end links to each other with electric capacity C2 one end, electric capacity C2 other end ground connection.

According to an embodiment of the utility model, wireless transmitting module includes resistance R1, resistance R2, resistance R3, electric capacity C3, electric capacity C4, electric capacity C5, inductance L2, control chip U2, control chip U2 is XKT510, 1 foot and the battery positive pole of XKT510 link to each other, the negative pole ground connection of battery, 1 foot of XKT510 still with electric capacity C3 one end, electric capacity C4 one end, inductance L2 one end, resistance R2 one end, resistance R3 one end links to each other, electric capacity C3 other end ground connection, the inductance L2 other end, the electric capacity C4 other end links to each other with XKT 510's 3 feet, XKT 510's 4 feet ground connection, the resistance R2 other end and XKT's 8 feet, electric capacity C5 one end links to each other, resistance R1 connects at XKT 510's 7 feet and 8 feet, the electric capacity C5 other end, the resistance R3 other end links to each other end links to.

According to an embodiment of the present invention, the wireless receiving module includes a capacitor C6, a capacitor C7, a resistor R4, a resistor R5, a diode D2, a zener diode D3, an inductor L3, a control chip U3, a control chip U3 is T3168, a 2-pin of T3168 is connected to a cathode of a diode D2, one end of the capacitor C6, and 7-pin of T3168, an anode of the diode D2 is grounded, the other end of the capacitor C6 is grounded, a 3-pin of T3168 is connected to an end of an inductor L3, a cathode of a zener diode D3, an anode of a zener diode D3 is grounded, a 4-pin of T3168 is grounded, the other end of the inductor L3 is connected to one end of a resistor R4, one end of a capacitor C7, the other end of the resistor R4 is connected to one end of a resistor R5, the other.

(III) advantageous effects

The utility model has the advantages that: a solar mobile phone charger comprises a solar cell panel, a DC/DC converter, a first data acquisition module, a second data acquisition module, an MPPT module, a microcontroller, a liquid crystal display module, a GPS positioning module, a lithium battery, a USB interface module, a wireless transmitting module and a wireless receiving module; the solar cell panel is adopted to charge the mobile phone charger, so that outdoor charging can be conveniently carried out, the MPPT module can realize that the solar cell outputs power with the maximum power, and the charging efficiency of the charger is improved; the wireless transmitting module and the wireless receiving module can realize wireless charging of the charger.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 these drawings without creative efforts.

FIG. 1 is a schematic block diagram of the present invention;

FIG. 2 is a schematic diagram of a DC/DC converter circuit;

FIG. 3 is a schematic circuit diagram of a wireless transmitter module;

fig. 4 is a schematic circuit diagram of a wireless receiving module.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1, a solar mobile phone charger includes a solar cell panel, a DC/DC converter, a first data acquisition module, a second data acquisition module, an MPPT module, a microcontroller, a liquid crystal display module, a GPS positioning module, a lithium battery, a USB interface module, a wireless transmitting module, and a wireless receiving module. The solar cell panel, the DC/DC converter and the lithium battery are sequentially connected; the first data acquisition module is connected with the solar cell panel and the microcontroller, acquires voltage and current signals of the solar cell panel and transmits the acquired signals to the microcontroller; the second data acquisition module is connected with the DC/DC converter and the microcontroller, acquires an output voltage and current signal of the DC/DC converter and transmits the acquired signal to the microcontroller; the MPPT module is connected with the DC/DC converter and the microcontroller, and the microcontroller outputs a PWM signal through the MPPT module according to voltage and current signals acquired by the first data acquisition module and the second data acquisition module, and controls the DC/DC converter to work so that the solar cell panel works in a maximum power output state; the liquid crystal display module, the GPS positioning module, the wireless transmitting module and the USB interface module are respectively connected with the microcontroller through peripheral circuits of the microcontroller; the lithium battery is connected with the wireless transmitting module and supplies power for the wireless transmitting module, and the wireless transmitting module and the wireless receiving module perform wireless power transmission through the coil.

The microcontroller is the core of the solar mobile phone charger and is used for completing intelligent control of the mobile phone charger, the microcontroller can be a single chip microcomputer, and the single chip microcomputer can be PIC16F 877. The DC/DC converter is used for converting pulsating direct current emitted by the solar panel into stable direct current. The first data acquisition module is used for acquiring the output voltage and the output current of the solar panel, the second data acquisition module is used for acquiring the output voltage and the output current of the DC/DC converter, the MPPT module is a maximum power output module, and the MPPT module outputs a PWM control signal to the DC/DC converter for the maximum power output module so that the solar panel always works in a maximum power output state. The solar cell panel, the DC/DC converter and the lithium battery are sequentially connected, and the DC/DC converter stores the direct current electric energy generated by the solar cell panel in the lithium battery. The liquid crystal display module is a 1602 liquid crystal display screen and is used for displaying the voltage of the lithium battery. The GPS positioning module is used for positioning the solar mobile phone charger. The USB interface module is used for connecting the mobile phone with the charger through a USB interface. The wireless transmitting module and the wireless receiving module are matched for use and used for wireless charging of the mobile phone. In order to be convenient to carry, the solar cell panel adopts a folding single crystal solar cell panel, and the maximum voltage of the output voltage of the cell panel can reach 7.8V under the open-circuit condition.

With reference to fig. 2, the DC/DC converter includes a capacitor C1, a capacitor C2, a zener diode D1, an inductor L1, a control chip U1, the control chip U1 is an LM2596, pin 1 of the LM2596 is connected to one end of the capacitor C1 and the anode of the solar cell panel, the cathode of the solar cell panel is grounded, the other end of the capacitor C1 is grounded, pin 3 and pin 5 of the LM2596 are grounded, pin 4 of the LM2596 is connected to the output end of the MPPT module, pin 2 of the LM2596 is connected to the cathode of the zener diode D1 and one end of the inductor L1, the anode of the zener diode D1 is grounded, the other end of the inductor L1 is connected to one end of the capacitor C2, and the other end of the capacitor C.

The control chip LM2596 is a switching voltage regulator of a buck power management monolithic integrated circuit, can output 3A driving current, has good linearity and load regulation characteristics, and can stabilize the output voltage at 5V. The capacitor C1 is an electrolytic capacitor with the model of 16V/680 microfarads; the capacitor C2 is a ceramic capacitor 220 microfarads; the zener diode D1 is IN 5824; inductance L1 was 33 microhenries.

With reference to fig. 3, the wireless transmitting module includes a resistor R1, a resistor R2, a resistor R3, a capacitor C3, a capacitor C4, a capacitor C5, an inductor L2, and a control chip U2, where the control chip U2 is an XKT510, a pin 1 of the XKT510 is connected to the positive electrode of the battery, the negative electrode of the battery is grounded, the pin 1 of the XKT510 is further connected to one end of the capacitor C3, one end of the capacitor C4, one end of the inductor L2, one end of the resistor R2, and one end of the resistor R3, the other end of the capacitor C3 is grounded, the other end of the inductor L2 and the other end of the capacitor C4 are connected to the pin 3 of the XKT510, the pin 4 of the XKT510 is grounded, the other end of the resistor R2 is connected to the pin 8 of the XKT510 and one end of the capacitor C5, the resistor R1 is connected.

The control chip XKT510 is used for a wireless induction intelligent charging and understanding management system, energy conversion and real-time monitoring of a circuit are carried out through an electromagnetic energy conversion principle and a receiving part in a matching mode, and the reliability is high. The resistance of the resistor R1 is 10K ohms, the resistance of the resistor R2 is 51K ohms, and the resistance of the resistor R3 is 51K ohms. The capacitor C3 is an electrolytic capacitor 16V/22 microfarad, the capacitor C4 is a ceramic capacitor 33 nanofarad, and the capacitor C5 is a ceramic capacitor 100 nanofarad. The inductance L2 was a 25 microhenry square coil with a diameter of 0.5 mm.

With reference to fig. 4, the wireless receiving module includes a capacitor C6, a capacitor C7, a resistor R4, a resistor R5, a diode D2, a zener diode D3, an inductor L3, and a control chip U3, where the control chip U3 is T3168, a pin 2 of T3168 is connected to a cathode of the diode D2, one end of the capacitor C6, and a pin 7 of T3168, an anode of the diode D2 is grounded, the other end of the capacitor C6 is grounded, a pin 3 of T3168 is connected to one end of the inductor L3 and a cathode of the zener diode D3, an anode of the zener diode D3 is grounded, a pin 4 of T3168 is grounded, the other end of the inductor L3 is connected to one end of the resistor R4 and one end of the capacitor C7, the other end of the resistor R4 is connected to one end of the resistor R5.

The wireless receiving of electric energy is realized by adopting a chip based on T3168, and the magnitude of the external output voltage is realized by dividing the voltage through a resistor R4 and a resistor R5. The resistance of the resistor R4 is 10K ohms, the resistance of the resistor R5 is 2K ohms, the capacitor C6 is 68 microfarads of ceramic capacitor, the capacitor C7 is 22 microfarads of ceramic capacitor, the inductor L3 is 22 microHenry square coil, and the diameter of the coil is 0.5 mm. Zener diode D3 is a zener S820.

To sum up, the embodiment of the present invention provides a solar mobile phone charger, which comprises a solar cell panel, a DC/DC converter, a first data acquisition module, a second data acquisition module, an MPPT module, a microcontroller, a liquid crystal display module, a GPS positioning module, a lithium battery, a USB interface module, a wireless transmitting module, and a wireless receiving module; the solar cell panel is adopted to charge the mobile phone charger, so that outdoor charging can be conveniently carried out, the MPPT module can realize that the solar cell outputs power with the maximum power, and the charging efficiency of the charger is improved; the wireless transmitting module and the wireless receiving module can realize wireless charging of the charger.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A solar mobile phone charger is characterized in that: the device comprises a solar cell panel, a DC/DC converter, a first data acquisition module, a second data acquisition module, an MPPT module, a microcontroller, a liquid crystal display module, a GPS positioning module, a lithium battery, a USB interface module, a wireless transmitting module and a wireless receiving module; the solar cell panel, the DC/DC converter and the lithium battery are sequentially connected; the first data acquisition module is connected with the solar cell panel and the microcontroller, acquires voltage and current signals of the solar cell panel and transmits the acquired signals to the microcontroller; the second data acquisition module is connected with the DC/DC converter and the microcontroller, acquires an output voltage and current signal of the DC/DC converter and transmits the acquired signal to the microcontroller; the MPPT module is connected with the DC/DC converter and the microcontroller, and the microcontroller outputs a PWM signal through the MPPT module according to voltage and current signals acquired by the first data acquisition module and the second data acquisition module, and controls the DC/DC converter to work so that the solar cell panel works in a maximum power output state; the liquid crystal display module, the GPS positioning module, the wireless transmitting module and the USB interface module are respectively connected with the microcontroller through peripheral circuits of the microcontroller; the lithium battery is connected with the wireless transmitting module and supplies power for the wireless transmitting module, and the wireless transmitting module and the wireless receiving module perform wireless power transmission through the coil.

2. The solar cell phone charger according to claim 1, wherein the microcontroller is a single chip microcomputer, and the single chip microcomputer is PIC16F 877.

3. The solar cell phone charger of claim 1, wherein the liquid crystal display module is a 1602 liquid crystal display.

4. The solar mobile phone charger of claim 2, wherein the DC/DC converter comprises a capacitor C1, a capacitor C2, a zener diode D1, an inductor L1, and a control chip U1, the control chip U1 is LM2596, pin 1 of the LM2596 is connected to one end of a capacitor C1 and the anode of the solar cell panel, the cathode of the solar cell panel is grounded, the other end of the capacitor C1 is grounded, pins 3 and 5 of the LM2596 are grounded, pin 4 of the LM2596 is connected to the output end of the MPPT module, pin 2 of the LM2596 is connected to the cathode of the zener diode D1 and one end of the inductor L1, the anode of the zener diode D1 is grounded, the other end of the inductor L1 is connected to one end of the capacitor C2, and the other end of the capacitor C2 is grounded.

5. The solar mobile phone charger according to claim 4, wherein the wireless transmitting module comprises a resistor R1, a resistor R2, a resistor R3, a capacitor C3, a capacitor C4, a capacitor C5, an inductor L2 and a control chip U2, the control chip U2 is an XKT510, a pin 1 of the XKT510 is connected with the positive electrode of the storage battery, the negative electrode of the storage battery is grounded, a pin 1 of the XKT510 is further connected with a pin C3, a pin C4, a pin L2, a pin R2 and a pin R3, a pin C3 is grounded, a pin L2 and a pin C4 are connected with a pin 3 of the XKT510, a pin 4 of the XKT510 is grounded, a pin R2 is connected with a pin 8 of the XKT510 and a pin C5, a resistor R1 is connected with a pin 7 and a pin 8 of the XKT510, and a pin C5 and a pin R3 are connected with a pin 6 of the XKT 510.

6. The solar mobile phone charger according to claim 5, wherein the wireless receiving module comprises a capacitor C6, a capacitor C7, a resistor R4, a resistor R5, a diode D2, a zener diode D3, an inductor L3 and a control chip U3, the control chip U3 is T3168, a pin 2 of T3168 is connected with a cathode of a diode D2, one end of the capacitor C6 and a pin 7 of T3168, an anode of a diode D2 is grounded, the other end of the capacitor C6 is grounded, a pin 3 of T3168 is connected with one end of an inductor L3 and a cathode of a zener diode D3, an anode of a zener diode D3 is grounded, a pin 4 of T3168 is grounded, the other end of the inductor L3 is connected with one end of a resistor R4 and one end of a capacitor C7, the other end of a resistor R5 is connected, the other end of the resistor R5 is grounded, and the other end of the capacitor C9 is.