CN203951235U - A kind of solar charger - Google Patents

Abstract

The utility model discloses a solar charger, which comprises a processor module, a GPS positioning module, a display module, a power supply module and a solar charging module; the display module, the GPS positioning module, the power supply module and the solar charging module are connected to the processor module Corresponding ports, the power module includes lithium batteries connected in sequence, a battery management module for automatically switching charging modes, a battery protection module for preventing lithium batteries from being overcharged, overdischarged, and overcurrent damaged; the solar charging module Contains solar panels, batteries and booster circuits connected in sequence. The GPS positioning module includes a GPS module and a microstrip antenna connected to it for receiving current latitude and longitude and time information sent back by satellites. The charger is simple in structure, low in power consumption, capable of high-efficiency solar charging, and has a GPS positioning module to obtain the user's location and current time in a timely manner.

Description

A solar charger

technical field

The utility model relates to a solar charger.

Background technique

With the development of science and technology and the improvement of people's living standards, portable electronic products such as mobile phones, notebook computers, IPADs, MP4s, etc. are gradually becoming the necessities of people's lives and an indispensable part of people's daily life. The use of portable electronic products is generally provided by batteries. Due to the limited power storage capacity of batteries, after a certain period of use, the battery power will be exhausted. When working or living outdoors, you often encounter difficulties such as no power and insufficient power for electronic products, so mobile power has become a must-have for people to travel. However, the storage power of mobile power is limited, which is not enough for outdoor work or long-term use in life. As a green and clean energy source, solar energy can meet people's needs for charging portable electronic products at any time without geographical restrictions.

At present, most of the existing solar chargers only have basic charging functions, and are large in size, high in power consumption, single charging method, easy to damage the rechargeable battery, and cannot continue to charge electronic products due to insufficient light. At the same time, most of the users who have the demand for outdoor mobile charging are traveling or field users who need to know their geographical position in time, and the existing solar chargers do not have the positioning function.

Utility model content

The technical problem to be solved by the utility model is to provide an outdoor portable solar charger with simple structure, low power consumption design, solar charging and GPS positioning function in view of the deficiencies in the background technology.

The utility model adopts the following technical solutions for solving the above-mentioned technical problems

A solar charger, comprising a processor module, a display module, a power supply module and a solar charging module; the display module, the power supply module and the solar charging module are connected to corresponding ports of the processor module, and the power supply module comprises lithium batteries connected in sequence , a battery management module used to automatically switch charging modes, a battery protection module used to prevent lithium batteries from being damaged; the solar charging module includes a solar panel, a storage battery and a boost circuit connected in sequence.

Preferably, the charger also includes a GPS positioning module connected to the processor module, and the GPS positioning module includes a GPS module and a microstrip antenna connected to it for receiving current latitude and longitude and time information sent back by satellites.

Preferably, the processing module is an MSP430 single-chip microcomputer.

Preferably, the lithium battery is a rechargeable lithium battery.

Preferably, the display module is an LCD liquid crystal display.

Preferably, the GPS module communicates with the processor module through an RS232 interface.

Compared with the prior art by adopting the above technical scheme, the utility model has the following technical effects:

1. Simple structure, low power consumption, and safe and efficient battery charging and discharging; equipped with a battery management chip, which can automatically switch between trickle charging, constant current charging, and constant voltage charging to protect the battery; battery protection The chip can prevent the lithium battery from being overcharged, over-discharged, over-current, short-circuited, etc.; the microprocessor uses MSP430, which can make the system enter a low-power mode to reduce energy consumption;

2. Equipped with a GPS positioning module, which can obtain the user's specific location and current time in real time; an integrated LCD display module can inform the user of the specific location and current time when going out in real time;

3. Contains a battery, which stores electric energy when the light is sufficient, and ensures that the lithium battery can continue to be charged when the light is insufficient.

Description of drawings

Fig. 1 is a structural block diagram of the utility model.

Fig. 2 is a flow chart of solar charging control of the utility model.

Fig. 3 is the flow chart of GPS reception of the utility model.

Detailed ways

Below in conjunction with accompanying drawing, the technical scheme of the utility model is described in further detail:

As shown in Figure 1, a kind of outdoor portable solar charger with GPS function, comprises processor module, GPS positioning module, display module, power supply module and solar charging module; Described display module, GPS positioning module, power supply module and solar energy The charging module is connected to the corresponding port of the processor module. The power module contains lithium batteries connected in sequence, a battery management module for automatically switching charging modes, and battery protection for preventing lithium batteries from being damaged by overcharging, overdischarging, and overcurrent module; the solar charging module includes a solar panel, a storage battery and a booster circuit connected in sequence. The GPS positioning module includes a GPS module and a microstrip antenna connected to it for receiving current latitude and longitude and time information sent back by satellites. The display module may be an LCD liquid crystal display, and the lithium battery may be a rechargeable lithium battery.

The processor module adopts an ultra-low-power single-chip microcomputer MSP430, and the system enters a low-power consumption mode when it is not working to reduce the energy consumption of the charger; the solar panel performs photoelectric conversion and stores the obtained electric energy in the storage battery. The output voltage of the above-mentioned battery supplies power to each module in the system after the booster circuit. The battery can store electric energy in the case of commercial power or sufficient light to ensure that the lithium battery can continue to be charged in the case of insufficient light. This makes the solar charger The design has the function of mobile power supply on the market; the GPS module communicates with the processor module through the RS232 interface, and the GPS receives the current latitude and longitude and time information sent back by the satellite through the microstrip antenna, and the processor module judges the information received by the GPS module, The real-time latitude and longitude and time are obtained through processing, and the user is notified through the LCD screen; the battery management chip is electrically connected to the microprocessor for managing battery charging, and when the battery voltage is low, trickle charging is used; when the battery voltage rises to When the pre-charge threshold is reached, constant current charging is used; when the voltage rises to the regulated voltage, constant voltage charging is used, and the charging current gradually decreases; the user can also trigger the external button to switch the battery management chip on and off by the microprocessor to Turn on/off battery charging; the battery management chip has two pins connected to red and green LED lights respectively, and when the lights are on, it indicates the charging state and the charging end state respectively, and the state is fed back to the single-chip microcomputer; the two pins of the battery protection chip It is electrically connected to the battery management chip, and the other two pins are electrically connected to the lithium battery, which is used to protect the charging of the battery and prevent the lithium battery from being overcharged, overdischarged, overcurrent, short-circuited, etc.; Microprocessor to calculate charging progress.

As shown in Figure 2, the solar charging control flow chart: start the battery management module and battery protection module, read the current charging status through the LCD screen; sample the charging voltage and current, and then calculate and display the charging progress, and judge whether it is full. When it is fully charged, it will continue to cycle charging, and if it is fully charged, it will be turned off to complete charging. Users can also control the charging status through an external switch. The battery protection module can prevent the lithium battery from being overcharged, overdischarged, overcurrent, short-circuited, etc., and the other end is connected to the lithium battery; the system realizes self-controlled charging, and feeds back the voltage at both ends of the lithium battery to the microprocessor through AD sampling to calculate Charging progress; triggering an external switch can turn charging on/off artificially.

As shown in Figure 3, the flow chart of GPS acceptance: determine whether the GPS is started, if it is started, initialize the GPS module, and obtain the latitude and longitude and time. The GPS module can provide the user with the current latitude and longitude and time. One end of the GPS module is connected to the processor module, and the other end is connected to the microstrip antenna. The interrupt method is used to obtain the information received by the GPS, so as to avoid the waste of resources caused by continuous query and reduce the power consumption of the system.

Claims (6)

1. a solar charger, is characterized in that: comprise processor module, display module, power module and solar recharging module; Described display module, power module and solar recharging module are connected the corresponding port of processor module, described power module comprises the lithium battery connecting successively, for the battery management module of the charging modes that automatically switches, for preventing the impaired battery protection module of lithium battery; Described solar recharging module comprises solar energy tabula rasa, storage battery and the booster circuit connecting successively.

2. solar charger according to claim 1, it is characterized in that: this charger also comprises the GPS locating module being connected with processor module, described GPS locating module comprise GPS module and be attached thereto for receiving current longitude and latitude that satellite transmission returns and the microstrip antenna of temporal information.

3. solar charger according to claim 1, is characterized in that: described processing module is MSP430 single-chip microcomputer.

4. solar charger according to claim 1, is characterized in that: described lithium battery is chargeable lithium cell.

5. solar charger according to claim 1, is characterized in that: described display module is LCD LCDs.

6. solar charger according to claim 2, is characterized in that: described GPS module and processor module are by RS232 interface communication.