CN202586392U - Portable mini solar power supply device - Google Patents

Abstract

A portable small solar power supply device relates to an improved solar charging device. The utility model includes a box body, a solar battery panel, a storage battery and a function control circuit board; The battery is placed in the battery compartment, and the battery is electrically connected to the functional control circuit board through the connector; the solar panel is packaged in a plastic frame, and the shape of the inner cavity of the solar panel storage compartment is adapted to the outline of the solar panel. The solar battery panel can be slid into the solar battery panel storage compartment from the storage opening on the box body, and the solar battery panel is electrically connected to the functional control circuit board through a solar charging cable with a connector. The utility model has the advantages of compact structure, small size and portability, convenient battery replacement, energy saving and environmental protection, and is suitable for travel and home use.

Description

Portable Small Solar Power Unit

technical field

The utility model relates to an improved solar charging device.

Background technique

With the rapid development of science and technology and the continuous improvement of people's living standards, there are more and more opportunities to go out to do business and travel, and digital products such as mobile phones and MP3s often cannot be charged at any time, which brings a lot of inconvenience. Solar charging equipment can make up for this shortcoming. However, the existing solar charging equipment is either too large and heavy to be portable, or too small so that the solar charging board cannot be separated from the control circuit module, causing the electronic components of the control circuit module to be exposed to the sun for a long time, resulting in premature charging. Aging fails. Simultaneously, the accumulator in the existing portable small-sized solar charging equipment can hardly be replaced at present, and after this causes the relatively short accumulator of life-span to be unusable, the whole set of charging equipment becomes a decoration.

Contents of the invention

The purpose of the utility model is to provide a portable small-sized solar energy device which can be separated from the control circuit box and stored, the storage battery can be replaced, and is convenient to carry.

The utility model includes a box body, a solar battery panel, a storage battery and a functional control circuit board; it is characterized in that there are a battery compartment and a solar panel storage compartment in the box body, and a storage port is provided on one side of the box body; the storage battery is placed in the storage battery compartment, and the storage battery passes through The connector is electrically connected to the functional control circuit board; the solar panel is packaged in a plastic frame, the shape of the inner cavity of the solar panel storage compartment is adapted to the outline of the solar panel, and the solar panel can be accessed from the storage port on the box body. Sliding into the storage compartment of the solar panel, the solar panel is electrically connected to the function control circuit board through the solar charging cable with a connector.

As a further improvement of the utility model, the storage battery is a single 18650 cylindrical lithium-ion battery.

As another improvement of the utility model, the function control circuit board is divided into A and B boards, and the A and B boards are connected by a cable; wherein the A board is the circuit main board, and is equipped with a battery connection port, an emergency LED lighting lamp and a function Indicator light; board B is a sub-board, equipped with solar charging port, DC output port and USB output port.

The utility model has the advantages of:

1. The solar panels stored in the box can be taken out, so that the solar panel can be adjusted at will to accurately face the sun and effectively avoid premature aging and failure of the components in the box when they are exposed to the sun for a long time during charging. .

2. The replaceable battery design is adopted to avoid the overall scrapping of the system due to battery failure, thereby prolonging the service life of the portable small solar device, and the cost performance is higher.

3. The whole solar device is compact in structure, small in size and portable, energy-saving and environment-friendly. The functional control circuit board is optimized to be as small as possible under the premise of ensuring efficiency.

The utility model is suitable for travel and home use.

Description of drawings

Fig. 1 is the appearance left oblique bottom view of the utility model embodiment;

Fig. 2 is a right oblique top view of the appearance of the utility model embodiment;

Fig. 3 is the internal structure schematic diagram of the utility model embodiment;

Fig. 4 is a schematic diagram of the use state of the embodiment of the utility model.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail. 

Referring to Fig. 1 to Fig. 4, the utility model portable small solar energy device comprises a box body 1, a solar battery panel 10, a storage battery 13, and a function control circuit board. The box body 1 is a cuboid with a size of 190mm×150mm×28mm. There are battery compartment 14 and solar panel storage compartment 15 inside the box body 1. There is a storage opening on one side of the box body 1; the battery 13 is placed in the battery compartment 14, and the battery 13 The connector is electrically connected to the function control circuit board; the solar panel 10 is packaged in a plastic frame, the shape of the inner cavity of the solar panel storage bin 15 is adapted to the outline of the solar panel 10, and the solar panel 10 can be removed from the box The storage port on the side of the body 1 slides into the solar cell panel storage compartment 15, and the solar cell panel 10 is electrically connected to the functional control circuit board through a solar charging cable 9 with a connector. The function control circuit board adopts the design of A and B boards, A board is the circuit main board 11, equipped with battery connector 16, emergency LED lighting lamp 3, function indicator light 4; B board is the sub board 12, equipped with solar charging port 8 , DC output port 7 and USB output port 6, the main output power switch 5 is also installed on the box body 1.

Under the condition of sufficient sunlight, the solar panel 10 automatically generates a DC input voltage of 4~7V after receiving the light, and the circuit board A board 11 uses 4 dedicated IC integrated management chips to process the input and output of the circuit respectively, and charge and manage the battery 13 , with charge and discharge protection, short circuit protection, electrical equipment overload protection and other functions. The accumulator on the board A board 11 of the circuit board provides constant voltage for the emergency LED lighting lamp 3, the USB output port 6 and the DC output port 7 respectively through a dedicated chip, and the DC output port has an output voltage of 6V, which can be used for LED lighting lamps, radios, etc. Power supply for electrical equipment; USB output port 6, the output voltage is 5V, which can charge digital products such as mobile phones and MP3. It can be used with LED lights or other external electrical equipment. There are three function indicator lights 4 on the side of the box body 1, among which green is the power indicator light, red is the charging indicator light, and blue is the battery status indicator light; the green power indicator light is always on when the main switch is turned on and can work normally, When the discharge voltage of the battery is lower than the set lower limit, it goes out; when the red charging indicator light is on, it means that the solar panel is working; when the blue battery status indicator light is on, it means that the battery is fully charged or fails to charge normally.

In order to prevent users from misoperation during use, the circuit board A board 11 is equipped with battery charge and discharge voltage protection and power supply output short circuit protection: (1) When charging, the battery reaches a full voltage of 4.2V, and the charge management chip ELI501 automatically cuts off the charge. Line, and turn on the blue light to indicate that the battery is fully charged to prevent the battery from overcharging. When discharging, when the battery voltage is lower than the set lower limit, the battery management chip will automatically cut off the battery power supply circuit, which can effectively avoid the rapid decline in battery performance due to over-discharge, thereby prolonging the service life of the battery. (2) Set short-circuit protection for the solar charging input and power supply output, no matter which one of the solar charging port 8, emergency LED lighting 3, USB output port 6, or DC output port 7 fails, the protection circuit can be automatically shut down Protect.

Referring to FIG. 3 again, as the equipment is used for a long time, the capacity of the storage battery 13 decreases and needs to be replaced. The user only needs to disassemble the upper cover of the box body 1, pull out the connector 16 from the circuit board A board 11 to release the electrical connection between the battery 13 and the function control circuit board, then take out the battery 13 from the battery compartment 14, and then Replace with a new 18650 cylindrical lithium-ion battery with a nominal voltage of 3.7V and a capacity of 2200mAh~2600mAh. This product is more economical and environmentally friendly than those products whose battery is welded on the circuit board, because the battery of this product can be easily replaced by the customer without scrapping the whole machine just because the battery is bad.

Referring to Fig. 4 again, the solar battery panel 10 is taken out from the receiving port of the box body 1 (not marked in the figure) and placed in sunlight, and the connector of the solar charging cable 9 is inserted into the solar charging port 8 of the box body 1, and The battery can be charged.

To sum up, on the premise of ensuring the efficiency of use, the portable small solar energy system of the utility model fully considers the user's use needs and cost performance, and is simple to use and easy to carry.

Claims (2)

1. a portable small-sized solar energy power source apparatus comprises box body (1), solar panel (10), storage battery (13) and function control circuit board; It is characterized in that: have battery compartment (14) and solar panel to take in storehouse (15) in the box body (1), box body (1) one side is taken in mouth; Storage battery (13) is placed in the battery compartment (14), and storage battery (13) is electrically connected through connector and function control circuit board; Solar panel (10) is packaged in the plastic frame; It is adaptive that solar panel is taken in the cavity shape and solar panel (10) appearance profile in storehouse (15); Solar panel (10) can be from the box body (1) take in and mouthful slip into solar panel and take in the storehouse (15), solar panel (10) is electrically connected through the solar charging electrical cables (9) and the function control circuit board of band connector.

2. according to the described portable small-sized solar energy power source apparatus of claim 1, it is characterized in that: said storage battery (13) is single-unit 18650 cylindrical lithium ion batteries.

3., it is characterized in that said function control circuit board is divided into A, B plate according to the described portable small-sized solar energy power source apparatus of claim 1, use winding displacement to connect between A, the B plate; Wherein the A plate is a circuit main board, disposes the storage battery connectivity port, emergency LED illuminating lamp (3) and functional indicator light (4); The B plate is a subplate, disposes solar recharging port (8), DC output port (7) and USB output port (6).

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