CN202309169U

CN202309169U - Solar charger

Info

Publication number: CN202309169U
Application number: CN 201120445472
Authority: CN
Inventors: 刘海敏
Original assignee: SHENZHEN HAOCHUANGTONG NEW ENERGY TECHNOLOGY CO LTD
Current assignee: SHENZHEN HAOCHUANGTONG NEW ENERGY TECHNOLOGY CO LTD
Priority date: 2011-11-11
Filing date: 2011-11-11
Publication date: 2012-07-04
Anticipated expiration: 2021-11-11

Abstract

The utility model provides a solar charger, which comprises an outer shell, a bottom shell, a PCBA (Printed Circuit Board Assembly) board, a solar cell panel and a lithium battery, wherein the PCBA board, the solar cell panel and the lithium battery are placed between the outer shell and the bottom shell in sequence; and the solar cell panel is a solar glass light-concentration cell panel with an circular Fresnel lens. The PCBA is the abbreviation of Printed Circuit Board Assembly. According to the solar charger, the monocrystalline silicon/gallium arsenide solar cell panel with the circular Fresnel lens is adopted, so that the conversion rate of solar energy reaches 17-20 percent.

Description

Solar charger

Technical field

The utility model relates to technical field of solar, relates in particular to solar charger, solar energy movable power supply.

Background technology

Science and technology is maked rapid progress now, and the electronic digital product is more and more, like MP3, and MP4; MP5, digital camera, mobile phone, MID; DV, electronic products such as laptop computer, but these products all must use battery, so people hope that high performance-price ratio is arranged, portable energy (battery) is continued a journey; For satisfying under the state need not alternating current battery charge, and solar battery charger occurs, solar energy major part on transfer ratio only accomplishes 15% to 17% at present; We can say that utilance is on the low side, make the charging interval long, solar charger at cloudy day or the state that do not have a sun down owing to the output voltage step-down and can't operate as normal.

The utility model content

In order to solve problem in the prior art, the utility model provides a kind of solar charger.

A kind of solar charger, it comprises shell and drain pan, also comprises PCBA plate, solar panel and the lithium battery placed successively that are arranged between shell and the drain pan, said solar panel is the solar energy glass concentrator cell plate of round Fresnel lens.PCBA is the abbreviation of English Printed Circuit Board+Assembly.

As the further improvement of the utility model, said shell is provided with the solar panel window, and said solar panel window is provided with toughened glass.

As the further improvement of the utility model, said PCBA plate is provided with the control solar cell and exports the digital circuit that lithium battery is charged with the constant current constant voltage mode, and said digital circuit comprises control circuit and the protective circuit by the MCU management.

The beneficial effect of the utility model is: the utility model adopts the monocrystalline silicon/gallium arsenide solar cell plate of round Fresnel lens, makes the transfer ratio of solar energy reach 17% to 20%.

Description of drawings

Fig. 1 is the utility model solar charger modular construction sketch map;

Fig. 2 is the utility model circuit structure block diagram;

Fig. 3 is the utility model circuit diagram;

Fig. 4 is the enlarged drawing of the A among Fig. 3;

Fig. 5 is the enlarged drawing of the B among Fig. 3;

Fig. 6 is the enlarged drawing of the C among Fig. 3;

Fig. 7 is the enlarged drawing of the D among Fig. 3.

Each component names is following among the figure: shell 101, drain pan 102, PCBA plate 103, solar panel 104, lithium battery 105, solar panel window 106, toughened glass 107.

Embodiment

Below in conjunction with description of drawings and embodiment the utility model is further specified.

Solar charger; It comprises shell 101 and drain pan 102; Also comprise PCBA plate 103, solar panel 104 and the lithium battery 105 placed successively that are arranged between shell 101 and the drain pan 102, the solar energy glass concentrator cell plate that said solar panel 104 is round Fresnel lens.Said shell 101 is provided with solar panel window 106, and said solar panel window 106 is provided with toughened glass 107.

Said PCBA plate 103 is provided with the control solar cell and exports the digital circuit that lithium battery 105 is charged with the constant current constant voltage mode, and said digital circuit comprises control circuit and the protective circuit by the MCU management.

PCBA charger plate employing Digital Circuit Control solar cell is exported with the constant current constant voltage mode poly-lithium battery is charged; By the voltage rising again output of booster circuit with poly-lithium battery; The middle management with MCU discharges and recharges; Electric weight detects, electric current and voltage overcharge the overvoltage, overcurrent and superheat protection, to reach application safely and efficiently.

Characteristic:

The a charge management circuit is managed with digital intellectualization, discharges and recharges with the mode that keeps constant current constant voltage;

B MCU management circuit improves maximized transfer ratio as far as possible with sunlight;

The c lithium battery protection circuit overcharges protection and fool proof sexual functions such as overvoltage, overcurrent and superheat;

D adopts the monocrystalline silicon/gallium arsenide solar cell plate of round Fresnel lens, makes the transfer ratio of solar energy reach 17% to 20%;

E improves the working voltage of solar cell, and guaranteeing can both operate as normal under no sun state.

The charging circuit digital management is to have only simple charging circuit on conventional charger, and we adopt the digitlization Charge Management, can make different adjustment with the product demands of different.Increase the fool proof property protective circuits such as overheated overcurrent-overvoltage of poly-lithium battery, guarantee the security performance of battery.The charge and discharge process and the electric weight measuring ability of MCU control poly-lithium battery.Adopt the monocrystalline silicon/gallium arsenide solar cell plate of round Fresnel lens, make the transfer ratio of solar energy reach 17% to 20%.Improve the working voltage of solar cell, guaranteeing can both operate as normal under no sun state.

Above content is the further explain that combines concrete preferred implementation that the utility model is done, and can not assert that the practical implementation of the utility model is confined to these explanations.For the those of ordinary skill of technical field under the utility model, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be regarded as belonging to the protection range of the utility model.

Claims

1. solar charger; It comprises shell (101) and drain pan (102); It is characterized in that: also comprise PCBA plate (103), solar panel (104) and the lithium battery (105) placed successively that are arranged between shell (101) and the drain pan (102), said solar panel (104) is the solar energy glass concentrator cell plate of round Fresnel lens.

2. solar charger according to claim 1 is characterized in that: said shell (101) is provided with solar panel window (106), and said solar panel window (106) is provided with toughened glass (107).

3. solar charger according to claim 1 and 2; It is characterized in that: said PCBA plate (103) is provided with the control solar cell and exports the digital circuit that lithium battery (105) is charged with the constant current constant voltage mode, and said digital circuit comprises control circuit and the protective circuit by the MCU management.