CN203933088U - Miniature wearing type solar electric power supply system - Google Patents

Abstract

The utility model discloses a kind of miniature wearing type solar electric power supply system.The utility model comprises the main pattern of ornaments, and main pattern is circular, and its surface is a single-crystalline-silicon solar-cell panel, and shell fastens solar panel outer ring, and power supply circuits are wrapped in shell under solar panels; The main pattern of whole ornaments wraps up whole electric power system, solar panel positive pole is connected to diode D1 positive pole in electric power system, the negative pole of diode D1 connects respectively one end of storage battery BT2V positive pole and switch S 1, the other end of switch S 1 connects boost module input Vin, boost module output Vout connects respectively the output of J1USB interface and light-emitting diode D2 anode, one end of light-emitting diode D2 negative terminal contact resistance R1, the other end ground connection of resistance R 1.The utility model is convenient for people to wear with oneself in daily life, is difficult for losing; Can be required miniature electrical equipment power supply at any time having under luminous environment or under low light environment.

Description

Miniature wearable solar power supply system

technical field

The utility model relates to a novel solar charger, in particular to a miniature solar charger whose size is basically equivalent to that of earrings, necklaces and the like.

Background technique

In today's society, with the increasing development of science and technology and the continuous improvement of people's daily life quality, mobile phones have become an indispensable part of people's lives. More business people use Bluetooth headsets instead of the handset of the mobile phone to listen to the phone directly, which reduces radiation. , and it is convenient to answer calls while driving or exercising, such as Hong Kong Bluetooth headsets have become very popular. In addition, many elderly people suffer from hearing loss. Hearing aids have become very popular in recent years, but batteries are rare in the market and need to be purchased from specialized institutions. Small electrical appliances such as Bluetooth headsets and hearing aids that are often carried around, need to carry a huge charger every day, or often need to replace the battery, which becomes an inconvenient factor.

At present, there are various styles of solar chargers on the market. Large-scale solar chargers can supply the normal power required by factories, small ones can supply power to basic household appliances, and there are rare micro-chargers that can charge mobile phones and radios. These solar chargers have relatively large power, and of course they are relatively bulky, which is very inconvenient to carry around. If it is just to power the Bluetooth headset or the hearing aid of the elderly, the solar charger with large power and volume Electrical appliances become overkill. Therefore, it is necessary to consider a more miniaturized and easy-to-wear miniature solar charger.

Contents of the invention

The utility model aims at the deficiencies of the prior art and combines with the requirement of wearing ornaments, and provides a novel miniature solar charger.

The utility model includes a main style of ornaments, the main style is circular, and its surface is a monocrystalline silicon solar panel, the outer ring of the solar panel is buckled by the outer shell, and the power supply circuit is wrapped under the solar panel in the outer shell; the main style of the whole ornament is wrapped The entire power supply system, the power supply system includes a diode D1, a battery BT, a switch S1, a boost module, a light-emitting diode D2, a resistor R1, and a USB interface J1; the positive pole of the solar panel is connected to the positive pole of the diode D1, and the negative poles of the diode D1 are respectively connected to the battery The positive pole of BT 2V and one end of switch S1, the other end of switch S1 is connected to the input Vin of the boost module, the output Vout of the boost module is respectively connected to the output of J1 USB interface and the positive end of the light-emitting diode D2, and the negative end of the light-emitting diode D2 is connected to one end of the resistor R1. The other end of the resistor R1 is grounded.

The boost module includes capacitors C1, C2, C3, C4, inductor L1, breakdown diode D3, N-channel depletion MOSFET T1, chip MAX608 and resistor R2; the input Vin is respectively connected to one end of the inductor L1 and one end of the capacitor C1 , the other end of the inductor L1 is respectively connected to the anode of the breakdown diode D3 and the drain of the MOS transistor T1, and the cathode of the breakdown diode D3 is connected to one end of the capacitor C4 as the output Vout; pin 1 EXT of the chip MAX608 is connected to the gate of the MOS tube T1; pin 2 OUT is respectively connected to one end of capacitor C2 and one end of C4; 5-pin REF is connected to one end of capacitor C3; 8-pin CS is respectively connected to the source of MOS tube T1 and one end of resistor R2; 3-pin FB, 4-pin SHDN, 6-pin AGND, 7-pin The GNDs are all grounded; the other ends of the capacitors C1, C2, C3, C4, and R2 are grounded respectively.

The beneficial effects of the utility model: it is convenient for people to wear it in daily life, and it is not easy to lose; it can supply power for the required micro electrical appliances at any time in a light environment or a weak light environment; Power tiny appliances.

Description of drawings

Accompanying drawing 1a, Fig. 1b and Fig. 1c are front view, side view and bottom view of the utility model respectively.

Accompanying drawing 2 is the utility model basic circuit.

Accompanying drawing 3 is the circuit diagram of boost module in Fig. 2.

In the picture: 1. Necklace rope, 2. Solar panel, 3. Switch, 4. Shell, 5. USB interface, 6. Charging indicator light.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

As shown in Fig. 1a, Fig. 1b and Fig. 1c, the utility model comprises the main style of ornaments, and the main style is a circle with a diameter of 3cm, which is equipped with a necklace rope 1, and the surface is mainly a monocrystalline silicon solar cell panel 2, and the shell 4 Buckle the outer ring of the solar panel, and wrap the power supply circuit under the solar panel in the casing. The side panel of the casing is provided with a switch 3 , and the bottom is a USB interface 5 and a charging indicator light 6 . The main style of the entire accessory wraps the entire power supply system, which mainly includes solar panels, ultra-thin and ultra-small polymer lithium batteries, booster modules, and Mini B 5Pin USB ports. Bluetooth headset charging: output voltage: DC 5.0V (volts), current 550mA (milliamps), working voltage: 3.7V; charging voltage for rechargeable hearing aids is also 3.7V-5V. Generally, the battery can be fully charged when the charging voltage is higher than the working voltage, so a voltage stabilizing and boosting module is added in the utility model to ensure that the output voltage is 5V/500mA.

Referring to accompanying drawing 2, the charging circuit includes a diode D1, a battery BT, a switch S1, a boost module, a light emitting diode D2, a resistor R1, and a J1 USB interface. The positive pole of the solar panel is connected to the positive pole of a diode D1, and the negative pole of D1 is respectively connected to the positive pole of the battery BT 2V and one end of the switch. One end of the diode D2, and the other end of D2 is connected to a R1 680Ω. All grounding in the figure means connecting to the negative pole of the solar panel. Usually, as long as the light intensity reaches a certain level, the solar panel will charge the rechargeable battery BT through the diode D1. The function of D1 is to prevent reverse charging due to too weak light until it is saturated. S1 is the power supply switch, that is, switch 3. When S1 is closed, the boost circuit starts to work, and the solar power supply board can drive the load. J1 is the output usb interface, D2 is the output indicator light, and R1 is the voltage divider resistor.

Refer to accompanying drawing 3 for the circuit diagram of the boost module, the circuit consists of input Vin, capacitors C1, C2, C3, C4, inductor L1, breakdown diode D3, N-channel depletion MOSFET T1, chip MAX608, resistor R2, and output Vout. The input Vin is connected to one end of the inductor L1 22μH and the capacitor C1 150μF, the other end of the inductor L1 is respectively connected to the anode of the breakdown diode and the drain of the MOS transistor T1, and the cathode of the breakdown diode is respectively connected to one end of the capacitor C4 200μF and the output Vout. The pins of the chip MAX608 are connected: one pin EXT is connected to the gate of the MOS tube T1; two pins OUT are respectively connected to one end of the capacitor C2 0.1 μF, one end of C4 200 μF and the output Vout; five pins REF are connected to one end of the capacitor C3 0.1 μF; eight pins CS Connect the source of MOS tube T1 and one end of resistor R2 50mΩ respectively; 3-pin FB, 4-pin SHDN, 6-pin AGND, and 7-pin GND are all grounded. The other ends of C1, C2, C3, C4, and R2 are respectively grounded. Vin passes through an inductor L1, whose function is to block the AC signal, and then passes through the N-channel depletion MOSFET, where the MOSFET is used as a power switch to send a signal to the EXT pin of the chip. MAX608 is a step-up DC/DC converter integrated circuit chip with low input voltage, input 2V voltage, can output stable voltage 5V, and output to Vout through OUT pin. Among them, the capacitor acts as a filter, blocks DC, and the resistor acts as a voltage divider.

The working process of the miniature wearable solar power supply system of the utility model: the practical person wears it on the body every day, and the electrical appliances are charged. In a dark environment, the built-in lithium battery can also provide electricity for electrical appliances. The solar panel converts light into electricity through sunlight, charges the battery for energy storage, and then boosts the 2V voltage to a 5V regulated output for the load through the booster circuit.

The utility model designs a solar charger. In this charger, a solar panel with a diameter of about 3cm ² is used for photoelectric conversion, which can realize the charging of the lithium battery, and the lithium battery can supply power to the Bluetooth headset under the condition of insufficient light. The utility model can satisfy people's daily wear, and it is both beautiful and convenient to wear. The utility model can be worn as a tie clip or a brooch for business people, and can be worn as a necklace for the elderly. Lighter materials should be selected in terms of weight.

Claims (1)

1. Miniature wearable solar power supply system, including the main style of accessories, the main style is circular, its surface is a monocrystalline silicon solar panel, the outer shell buckles the outer ring of the solar panel, and wraps the power supply circuit under the solar panel in the outer shell ;The main style of the whole ornament wraps the entire power supply system, the power supply system includes diode D1, battery BT, switch S1, boost module, light emitting diode D2, resistor R1, J1 USB interface; the positive pole of the solar panel is connected to the positive pole of diode D1, and the diode The negative pole of D1 is respectively connected to the positive pole of the battery BT 2V and one end of switch S1, the other end of switch S1 is connected to the input Vin of the booster module, and the output Vout of the booster module is respectively connected to the output of the J1 USB interface and the positive end of the light-emitting diode D2, and the negative end of the light-emitting diode D2 Connect one end of the resistor R1, and the other end of the resistor R1 is grounded; The boost module includes capacitors C1, C2, C3, C4, inductor L1, breakdown diode D3, N-channel depletion MOSFET T1, chip MAX608 and resistor R2; the input Vin is respectively connected to one end of the inductor L1 and one end of the capacitor C1 , the other end of the inductor L1 is respectively connected to the anode of the breakdown diode D3 and the drain of the MOS transistor T1, and the cathode of the breakdown diode D3 is connected to one end of the capacitor C4 as the output Vout; pin 1 EXT of the chip MAX608 is connected to the gate of the MOS tube T1; pin 2 OUT is respectively connected to one end of capacitor C2 and one end of C4; 5-pin REF is connected to one end of capacitor C3; 8-pin CS is respectively connected to the source of MOS tube T1 and one end of resistor R2; 3-pin FB, 4-pin SHDN, 6-pin AGND, 7-pin The GNDs are all grounded; the other ends of the capacitors C1, C2, C3, C4, and R2 are grounded respectively.