CN201185398Y

CN201185398Y - Multifunctional solar mobile power supply

Info

Publication number: CN201185398Y
Application number: CNU2008201070266U
Authority: CN
Inventors: 林锋
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-04-11
Filing date: 2008-04-11
Publication date: 2009-01-21
Anticipated expiration: 2018-04-11

Abstract

The utility model relates to a multi-functional mobile solar power source, which belongs to the technical field of charging device and solves the problems of the prior charging devices that charging cannot be done at any time, the performance of solar batteries is instable, the function is unitary, and the application range is narrow, etc. The utility model consists of a shell, a solar panel, a CPU central processing module, an internal lithium battery charging module, an internal lithium battery charging over-current protection module, a DC / DC step-up module, a step-up voltage control module, an external discharge over-current protection module, a state detection module, a lighting module and a power supply module, wherein, the internal lithium battery charging module, the internal lithium battery charging over-current protection module, the DC / DC step-up module, the step-up voltage control module, the external discharge over-current protection module, the state detection module, the lighting module and the power supply module are arranged in the shell, and are connected with the CPU central processing module via electric signals and data signals.

Description

The multifuctional solar portable power source

Technical field

The utility model relates to a kind of multifuctional solar portable power source, belongs to the charging device field.

Background technology

In the prior art; the application of electrical equipment and people's life are closely bound up; indispensable; the portable electrical equipment that some are small-sized; often need charging to use, but because various odjective causes, regular meeting appears at the situation of electrical equipment short of electricity in emergency circumstances; for convenience, often need the portable power source of meeting an urgent need.But, also can appear at and the power supply deficiency of urgent charger own, situation about can't charge in emergency circumstances often occur.

Similar products are many in the market, great majority by a solar panel, a joint lithium battery/polymer battery (hereinafter to be referred as " battery "), primary elements such as battery charging management IC, the IC that boosts form; Be characterized in simple, convenient, because of with low content of technology, debugging is convenient, does not need the professional and technical personnel, is fit to the conventional charger manufacturer production.Its shortcoming is a unstable properties, function singleness, applicable surface is little, can only be fixed as a kind of (as 5.6V) as output voltage, generally can only be used for several mobile phones, the charging effect of needs, particularly solar cell that can not comprehensively satisfy different digital products is not good, directly causes the application of this series products to be restricted.

The utility model content

Can not charge solar cell properties instability, function singleness, problem such as applicable surface is little at any time in order to overcome existing charging device.The purpose of this utility model is: a kind of multifuctional solar portable power source is provided.

The technical scheme that its technical problem that solves the utility model adopts is as follows: the multifuctional solar portable power source comprises shell, solar panel, also comprise control system 3, control system 3 comprises as lower module: CPU central processing module, inner lithium cell charging module, inner lithium cell charging overcurrent protection module, the DC/DC boost module, the booster voltage control module, the overcurrent protection module of externally discharging, state detection module, lighting module, supply module; Described inner lithium cell charging module; inner lithium cell charging overcurrent protection module; the DC/DC boost module; the booster voltage control module; external discharge overcurrent protection module, state detection module, lighting module; supply module is positioned at shell, is connected with data-signal by the signal of telecommunication with the CPU central processing module.

Described solar panel is positioned at shell upper, is connected with shell; Be positioned at shell upper or be positioned at the inboard of turning shell upper by flip component.Described multifuctional solar portable power source also comprises also comprising the adapter input port indicator light, illuminating lamp, switch, USB delivery outlet; Driving switch; Described adapter input port, indicator light, illuminating lamp, switch are positioned at the shell side face; Described driving switch is positioned at outer casing frontispiece.

Compared with prior art, the beneficial effects of the utility model are:

Along with global energy is in short supply day by day, the environmental protection and energy saving technology is paid attention to by various countries, the utilization of solar energy is the outstanding advantage of this " portable power source ", be that my company and manufacture of solar cells enterprise work in concert, the research of technique achievement has not only been put forward the conversion efficiency of solar cell greatly, originally, according to the requirement of product, produce special-purpose solar cell panel assembly, have efficient, environmental protection, long-life advantage, be in leading domestic status.

In energy storage, this product adopts high performance lithium battery/polymer battery energy storage, and not only capacity is big, but and number of repetition many, the life-span is long.

On electrical property, adopt at present up-to-date semiconductor integrated circuit design charging and discharge circuit, remove and adopt optimal design, make the circuit safety can be outer, more pay attention to the high efficiency of circuit, improve the utilance of power supply, simultaneously, also adopted low power dissipation design, made the power consumption of circuit self reach minimum.

Several means below main the employing:

1, adopts microcomputer controller,, play the purpose of Based Intelligent Control as the core of product;

2, adopt the kinds of protect measure, the dual voltage protection of lithium battery, overcurrent protection and temperature protection, mistake are put protection etc.

At first, the characteristics that the electric energy of the storage of this product utilization lithium battery/polymer battery is big by charge management circuit, to inner battery charge energy storage, have two kinds of modes:

The one, utilize traditional AC adapter, from civilian alternating current power taking, thereby fast to internal cell charging energy storage.The DC head of adapter connects this product DC interface, adapter is inserted 110V or 220V alternating-current power supply again, and tri-colour LED will become redness, means this moment the internal battery in the charger is charged, and internal battery is in low electricity condition; If indicator light becomes green, then internal battery is full of.

The 2nd, utilize the solar panel of high conversion efficiency, be transform light energy electric energy, thereby in the occasion of no alternating current, to internal cell charging energy storage.Under sunlight, by control circuit the power storage that photocell produces is arrived internal battery, also the electric energy that can directly produce photocell charges to mobile phone or other digital product, and (this point is decided according to solar illuminance, if external mobile device requires current parameters too high, might produce can not charging phenomenon).

At first deploying solar can plate, functional select switch 3 switches to " OFF " gear (this moment can not externally discharge), panel is placed in the sun the tri-colour LED of the charger look that reddens, mean the internal battery in the charger charged that internal battery is in low electricity condition this moment; If indicator light becomes green, then internal battery is full of.When your panel that closes, tri-colour LED extinguishes, and solar panels quit work.

When charging, make solar panels vertical as far as possible with light, the conversion efficiency of solar panels is the highest like this.

Its two, be that discharge is logarithmic code series products charging, adopt the integrated circuit that boosts (IC) of efficient low-power consumption, by microcomputerized control, exportable different voltage is fit to the requirement of various digital products.

For example, at first the output voltage gear is transferred to the required charging voltage value of your external equipment, yet the mobile device according to you is selected suitable adapter, link together by USB patchcord and the adapter of your apolegamy and your mobile device, and function selecting beginning switched to " ON ", tri-colour LED will be lighted (belong to normal phenomenon if the alternately flicker of green orange occurs this moment).When the indicator light of your external charging of mobile devices lights, show charging of mobile devices to you.In addition, you can also open solar panel to built-in battery charge in case of need.

The 3rd, illumination functions, functional select switch 3 switches to " LED " gear, the superbright white LED lamp is bright, can be used as illumination night.

At last, no matter be external adapter/solar panel to inner battery charge, or internal cell by booster circuit to the digital series products charging in outside, all have protections such as overcurrent, overvoltage, excess temperature, thereby make the use safety and reliability of product.

Description of drawings

Fig. 1 is the The general frame of multifuctional solar portable power source;

Fig. 2 is the structural representation of multifuctional solar portable power source;

Fig. 3 is the electrical schematic diagram (total figure) of multifuctional solar portable power source;

Fig. 3 .1CPU central processing module circuit diagram;

Fig. 3 .2 is to inner lithium cell charging module circuit diagram;

Fig. 3 .3 is to inner lithium cell charging overcurrent protection module circuit diagram;

Fig. 3 .4DC/DC boost module circuit diagram;

Fig. 3 .5 booster voltage control module circuit diagram;

Fig. 3 .6 overcurrent protection module circuit diagram that externally discharges;

The various state detection module circuit diagrams of Fig. 3 .7;

Fig. 3 .8 illumination and indicating module circuit diagram;

Fig. 3 .9 supply module circuit diagram.

Embodiment

Below in conjunction with drawings and Examples the utility model is further specified, but not as to qualification of the present utility model.

Embodiment 1

See also the embodiment of the utility model multifuctional solar portable power source of Fig. 1 ~ shown in Figure 3.

The multifuctional solar portable power source comprises shell 1, solar panel 2, also comprise control system 3, control system 3 comprises as lower module: CPU central processing module 3.1, inner lithium cell charging module 3.2, inner lithium cell charging overcurrent protection module 3.3, DC/DC boost module 3.4, booster voltage control module 3.5, the overcurrent protection module 3.6 of externally discharging, state detection module 3.7, lighting module 3.8, supply module 3.9; Described inner lithium cell charging module; inner lithium cell charging overcurrent protection module; the DC/DC boost module; the booster voltage control module; external discharge overcurrent protection module, state detection module, lighting module; supply module is positioned at shell, is connected with data-signal by the signal of telecommunication with the CPU central processing module.

Described solar panel is positioned at shell upper, is connected with shell upper by flip component.

Described multifuctional solar portable power source also comprises adapter input port 4, indicator light 5, illuminating lamp 6, switch 7, USB delivery outlet 8; Driving switch; Described adapter input port, indicator light, illuminating lamp, switch, the USB delivery outlet is positioned at the shell side; Described driving switch 9 is positioned at outer casing frontispiece; The adapter input port is connected by the signal of telecommunication with inner lithium cell charging module, and the USB delivery outlet is connected by the signal of telecommunication with supply module, and illuminating lamp is connected by the signal of telecommunication with lighting module.

One, the CPU central processing module 3.1

This module is the control centre of entire product, by 8 single-chip microcomputer EM78P153S control, mainly pass through state detection module, detect various states, as outer adapter state, solar panels state, charging over-current state, inner lithium battery pressure condition etc., the CPU internal processes carries out analyzing and processing to various states, adjusts the operating state of product, makes product be in optimum state.

Finish the control of LED lamp indicator light, overcharge work such as shutoff, state adjustment by EM78P153S, make product have functions such as indication and self-shield.

Two, to inner lithium cell charging module 3.2

This module comprises two partly, the one, and external adapter is to inner lithium cell charging circuit 2.1; The 2nd, solar panel is to inner lithium cell charging circuit 2.2.

This part circuit mainly is made up of two kinds of charging circuits, automatic switch-over circuit and anti-jamming circuits.Wherein anti-jamming circuit adopts the LC filter to realize, mainly is the interchange interference that prevents that external adapter from introducing, and product is caused the operate as normal of damaging or influencing product.

Charging diode adopts Schottky diode 1N5817, has the little characteristics of pressure reduction, helps improving the charging effect of solar panel.

Three, to inner lithium cell charging overcurrent protection module 3.3

This module mainly partly is made up of current detection circuit and electronic switch two, when over-current detection circuit detects the over-current state generation, gives signal of CPU, and CPU is by control circuit, and the control electronic switch turn-offs, thereby plays a protective role.

Current detecting adopts general comparator LM358 to realize; Electronic switch adopts the MT9435A high-power MOS tube, and the temperature rise when effectively preventing big electric current makes circuit more stable, also has cost performance preferably simultaneously.

Four, the DC/DC boost module 3.4

This module is the main functional modules of entire product, mainly is made up of boost integrated circuit RT9266PE and corresponding peripheral cell of high-performance DC/DC, has stable, the characteristics such as conversion efficiency is high, output ripple is little, load capacity is strong, circuit structure is simple of boosting.

RT9266PE is the pressure regulation IC of a PFM mode of operation, has and can expand the stream output, and when metal-oxide-semiconductor was flowed in external expansion, load capacity was strong, and peripheral cell quantity is few simultaneously, and circuit structure is simple.

The feedback end of RT9266PE, by correspondent control circuits control, exportable different voltage satisfies dissimilar digital product demands.

Five, the booster voltage control module 3.5

This module is mainly used in the size of control output voltage, by cooperating with the DC/DC booster circuit, by regulating the feedback voltage of RT9266PE, exportable four kinds of different voltages.This product is set to 4.5V, 5.6V, 6V and four kinds of voltages of 9V, in addition as required, also can be set to other magnitude of voltage.The adjustment of voltage is finished by fourth gear position tap changer.

Owing to adopt voltage regulating mode in parallel, as long as increase progression in parallel, can increase the kind and the number of output voltage, increase the autgmentability of product.

Six, the overcurrent protection module 3.6 of externally discharging

This module mainly partly is made up of current detection circuit and electronic switch two, when over-current detection circuit detects the over-current state generation,, control electronic switch in real time by the judgement of comparator, turn-off output circuit, thereby prevent that situation such as external short circuit from burning out internal circuit.

Current detecting adopts general comparator LM358 to realize, one tunnel sampling, another road polar switching.The switch MOS pipe adopts the two NMOS pipes of NK9926, has high-power advantage, prevents that excessive electric current from causing metal-oxide-semiconductor hot.These two devices have cost performance preferably.

This circuit is not handled by CPU, is in order to improve real-time, at faster speed, to cut off circuit.

Seven, various state detection modules 3.7

This module is mainly used in the various states in the testing product course of work, is beneficial to the work of CPU control product.The state that detects mainly contains outer adapter state, solar panels state, charging over-current state, discharge over-current state, inner lithium battery pressure condition etc.

The detection of particularly inner lithium battery voltage adopts high-accuracy voltage to detect integrated circuit TP74C42, has the precision height, from the little advantage of power consumption.

Eight, illumination and indicating module 3.8

This module is mainly used in the operating state of indication product.

Indicator light circuit is total to positive red and green color lamp by one, by CPU control, is used to indicate information such as charging circuit state and battery electric quantity state.

Lighting circuit mainly is to light a highlighted white LED lamp, plays the flashlight effect, is convenient to use night this product or temporary lighting.

Nine, supply module 3.9

The power supply of this module partly comprises three aspects:

Be the power supply part of product internal circuit, constitute, when the lithium battery pressure drop is following to 3.7V, can provide the 3.3V output voltage, guarantee internal circuit operate as normal such as CPU by high-performance, low pressure reduction integrated regulator AS6206A33M3G, stable and reliable for performance.

Inner lithium battery adopts the high-capacity lithium battery that carries the lithium electric protection, and capacity reaches 4.4AH.

Solar panel adopts two 5.5V/150mA, and conversion efficiency reaches 16% solar energy energy plate parallel connection, and maximum output current can reach 300mA (1.65W), has greatly improved charging effect, and the practicality of product is further improved.

Above-described embodiment, the utility model embodiment a kind of more preferably just, the common variation that those skilled in the art carries out in the technical solutions of the utility model scope and replacing all should be included in the protection range of the present utility model.

Claims

1. multifuctional solar portable power source, it comprises shell, solar panel, it is characterized in that: also comprise control system, control system comprises as lower module: CPU central processing module, inner lithium cell charging module, inner lithium cell charging overcurrent protection module, the DC/DC boost module, the booster voltage control module, the overcurrent protection module of externally discharging, state detection module, lighting module, supply module; Described inner lithium cell charging module; inner lithium cell charging overcurrent protection module; the DC/DC boost module; the booster voltage control module; external discharge overcurrent protection module, state detection module, lighting module; supply module is positioned at shell, is connected with data-signal by the signal of telecommunication with the CPU central processing module.

2. multifuctional solar portable power source according to claim 1 is characterized in that: described solar panel is positioned at shell upper, is connected with shell; Be positioned at shell upper or be positioned at the inboard of turning shell upper by flip component.

3. multifuctional solar portable power source according to claim 1 is characterized in that: also comprise the adapter input port, indicator light, illuminating lamp, switch, USB delivery outlet; Driving switch; Described adapter input port, indicator light, illuminating lamp, switch, the USB delivery outlet is positioned at the shell side; Described driving switch is positioned at outer casing frontispiece; The adapter input port is connected by the signal of telecommunication with inner lithium cell charging module, and the USB delivery outlet is connected by the signal of telecommunication with supply module, and illuminating lamp is connected by the signal of telecommunication with lighting module.