CN2807496Y - Solar MP3 charger - Google Patents

Abstract

The utility model relates to a solar charger for an MP3 player. Provided with a solar cell and a USB interface, the utility model is characterized in that the solar charger is provided with an accumulator cell and a boosting circuit; the solar cell is connected with the accumulator cell; the output terminal of the accumulator cell is connected with the USB interface by the boosting circuit. The utility model has the optimized proposals that the whole charger is in integrated design and is provided with a cell box; both the accumulator cell and the boosting circuit are installed in the cell box; a solar cell board is fixed to the external surface of the cell box; the USB interface is arranged on the side edge of the cell box; a clamping groove which has the same specification as the solar cell board is arranged on one external surface of the cell box; the solar cell is fixedly embedded in the clamping groove. Instead of directly using the solar energy to charge, the utility model is additionally provided with the accumulator cell which can charge the MP3 player at any time and can carry out quick charge.

Description

Solar MP3 charger

FIELD

The present invention relates to a solar charger for charging a particular MP3 players and the like mini MP3 charger solar collector.

Background technique

As more and more rapid development of microelectronics technology, MP3 players and other personal micro-electronic products, easy to use; but to charge such products still using conventional buck rectifier charger, still not disconnected from the AC power source . For example, currently on the market rely on computer MP3 charging 5V power supply and AC charger easy to complete, this simple structure AC charger is provided with step-down transformer, the secondary of the transformer is connected to a regulator circuit, the stability voltage output to the USB interface circuit, the interface for connecting to MP3, is charged. This charger can not be charged anytime, anywhere, is very inconvenient. Another prior art solar charger, provided with solar panels, solar panels connected to the USB interface. This charger many disadvantages: First, it is the direct use of solar charging, fast charging can not be performed, giving the user a great deal of inconvenience. Second, this solar charger is not designed specifically for MP3, is a lot of micro-electrical charging of universal design, so the lack of dedicated charging for the MP3 design features, there will be some inconvenient to use. These deficiencies offset by the advantages of the product itself, become the weak link in modern electronic technology.

SUMMARY

To make up for these shortcomings of the prior art, the present invention provides a solar charger for MP3 and other small personal appliances as portable, battery and is equipped with energy storage, energy reserves where there is light, and when you need to MP3 charging, you can take advantage of dual-energy energy storage batteries and solar cells for charging MP3 quickly; because energy storage battery in the normal use of solar panels has been charged, even where there is no sunlight can charge the Mp3. Optimization of the present invention can also extend the capabilities, completely replace the traditional AC charger.

The above aspect of the invention the task is: a solar MP3 charger, a solar cell is provided with a USB interface, characterized in that, with the energy storage battery and a boost circuit, a solar cell is connected with the energy storage cells, storage batteries the output of the booster circuit is connected via the USB interface.

This design increases the energy storage battery, and a voltage conversion circuit having both the boost regulator function and not only compact, but also changed the direct use of solar charging work, the solar cell energy stored in the energy storage cells, you can always charge for MP3, and can be quickly charged. The above-described embodiment two energy storage cells may generally be 1.2V rechargeable batteries connected in series. The solar cell for charging the energy storage cells, and the boost regulator circuit of the rechargeable battery voltage of 2.4V promoted 5V, MP3 charging through the USB interface.

Optimization of the above technical solution has the following design: 1, the entire charger integrated design: battery case with the energy storage battery and a boost (voltage regulator) circuits are mounted in the battery case, a solar cell panel is fixed outer surface of the battery case, USB interface, drawn from the side of the battery case.

2, the detachable battery case provided with an opening of the accumulator battery, after the use of solar cells washed over, you can easily remove the battery directly.

3, an outer surface of the battery case is provided with the slot, the slot specifications consistent with the solar panel, the solar cell is fixed in the insert slot.

4, the accumulator battery protection circuit is provided with: the accumulator battery protection circuit may be an overshoot protection circuit; over-discharge protection circuit; may be simultaneously provided overshoot and over-discharge protection circuit, the protection circuit provided overshoot between the solar cell and the accumulator battery; over-discharge protection circuit is provided in the accumulator battery and the booster circuit (also referred to as a voltage conversion circuit) between the booster circuit may also be used for protection (i.e.: the critical booster circuit enabling voltage, the voltage value is set according to the battery to be protected); 5, a charging circuit is provided with AC input and AC: alternating current input port structure that is: by the step-down transformer connected to the AC input interface circuit, through a circuit (which may be simple diode) are isolated from the solar cell, is connected between the solar cell and the accumulator battery overcharge protection circuit (does not overcharge the battery is connected to the accumulator when the protective circuit). In place of the AC power supply, AC power can be accessed as a supplementary solar charging. The charging circuit and the accumulator battery protection circuit may be employed in similar prior art circuit; 6, provided with an accumulator battery voltage indicator circuit, the indicator is a light emitting diode.

7, the boost (voltage regulator) circuit modular structure.

The innovation of the present invention: the solar panel, the battery energy storage, and a USB port integrated circuit design, using sunlight to produce electrical energy storage circuit and then through the booster through strengthening the MP3 standard USB port for fast charging.

This design can be treated through the charged charging MP3 USB port, the accumulator may be performed after the battery replacement, it can be used directly to MP3 using the battery, in order to meet the needs of various users. The design capacity is slight increase can also be used as a mobile phone charger.

BRIEF DESCRIPTION

1 a block diagram of the present novel configuration utility; FIG. 2 is a schematic appearance of Example 1; FIG. 3 is an electrical schematic diagram of an embodiment including a boost (voltage regulator) and indicating circuit, the protection circuit.

Detailed ways

Example 1, with reference to FIGS. 1 to 3: Solar Power Efficient monocrystalline or polycrystalline efficient battery output 4V70mA, two accumulator batteries using rechargeable batteries No. 7. Boosting circuit modular structure. Energy storage cells, a boost (voltage regulator) circuit, indicating circuits are mounted in the battery case 2, a battery case 2 is provided with an outer surface of the slot 3, slot 3 is consistent with the size of the solar cell panel 1, a solar cell 1 mounted in the insert slot. Battery case 2 is provided with an accumulator battery loading opening 4, when the use of solar cells washed over, through the USB port to the MP3 charge anywhere, you can easily remove the battery directly. USB interface provided in the battery case 5 side, easy to use.

Example 2 In Example 1 on the basis of embodiments, with the accumulator battery with a battery protection circuit, including protection overshoot and over-discharge protection circuit, and with the AC inlet and the charging circuit. AC input structure: AC step-down transformer input interface through which the solar cell is isolated from each other connected to the overshoot between the solar cell and the accumulator battery protection circuit. In place of the AC power supply, AC power can be accessed as a supplementary solar charging. And an accumulator charging circuit of the battery protection circuit, using the same prior art circuit. Energy storage circuit with a battery voltage indicator, the indicator is a light emitting diode.

Example 3 Example 2 is substantially the same, but only with over-discharge protection circuit, the AC input connector of the solar cell is connected to the mutually isolated energy storage cells.

The present invention is not limited to the disclosed embodiments, the present invention will be described in the book cover in the scope of the claims of the patent, and all modifications and variations equivalent scope of the claims.

Claims (10)

1. Solar MP3 charger, a solar cell is provided with a USB interface, characterized in that, with the energy storage battery and a boost circuit, a solar cell and energy storage cells connected to the output of the accumulator battery through the boost circuit USB interface connection.

2. The solar MP3 charger according to claim 1, characterized in that, the entire charger integrated design: battery case with the energy storage battery and the booster circuit are mounted in the battery case, a solar the panel is fixed to the outer surface of the battery case, USB interface provided in the side of the battery case.

3. The solar MP3 charger as claimed in claim 1, characterized in that the outer surface of the battery case is provided with a slot, the slot specifications consistent with the solar panel, the solar cell is fixed in the insert the slot.

4. The solar charger MP3 1 or claim 2 or claim 3, wherein the accumulator battery protection circuit is provided: the accumulator battery protection circuit overshoot protection circuit, over-discharge protection circuit, or simultaneously with overshoot and over-discharge protection circuit; overshoot protection circuit is provided between the solar cell and the energy storage cells; between the booster circuit and the energy storage cells, or over-discharge protection circuit is provided: critical booster circuit enabling voltage, consistent with the voltage value of the battery to be protected.

5. The solar MP3 charger according to claim 4, characterized in that the charging circuit is provided with AC input and AC: alternating current input port structure that is: isolated from each other by a step-down transformer to the AC input interface and a solar cell, is connected in between the solar cell and the accumulator battery discharge protection circuit, or connected to the energy storage cells.

6. The solar MP3 charger as claimed in claim 5, characterized in that the energy storage cells with a voltage indicator circuit, the indicator is a light emitting diode.

7. The solar MP3 charger as claimed in claim 6, wherein said battery cartridge detachably provided with an opening of energy storage cells.

8. The solar MP3 charger as claimed in claim 7, wherein the modular structure of the booster circuit.

9. The solar MP3 charger as claimed in claim 1 or 2 or 3, wherein the modular structure of the booster circuit.

10. The solar MP3 charger as claimed in claim 5 or 6 or 7, wherein the modular structure of the booster circuit.