The utility model content
Utility model purpose: in order to solve the existing in prior technology problem, the utility model proposes a kind of portable power source and be applicable to the charger function of multiple electronic product of integrating, and carry the intelligent portable multi-function portable power source charger of AC city plug.
Technical scheme: for reaching above-mentioned purpose, the utility model can be by the following technical solutions: a kind of intelligent portable multi-function portable power source charger, comprise main casing, be positioned at the circuit board of main casing inside, described main casing comprises base plate and the cover plate that flexibly connects with base plate, described base plate and cover plate junction are provided with slidably battery contact pilotage, but described main casing also comprises pull battery deck; Also be provided with AC city plug and DC output port on the described main casing;
Described circuit board comprises microprocessor, and AC power supplies change-over circuit, DC output circuit, DC adjust circuit, lithium battery, lithium cell charging circuit, li-ion cell protection management circuit, lithium battery polarity testing circuit, booster circuit, DC testing circuit and current detection circuit;
Described AC power supplies change-over circuit is converted to direct current with alternating current, directly exports described DC output port by described DC output circuit one tunnel to through described current detection circuit, and one the tunnel adjusts circuit through described DC exports described lithium cell charging circuit to;
Described DC adjusts the described AC of electric circuit inspection city plug and whether inserts supply socket, and signal is sent to described microprocessor, described microprocessor judges that according to signal direct current after the conversion is used for directly exporting to described DC output port and carries out the charging of equipment to be charged or be used for exporting to the charging that the lithium cell charging circuit carries out lithium battery;
Described li-ion cell protection management circuit occurs overcharging at lithium battery, cross and put or during overcurrent, enter guard mode; The communication of described li-ion cell protection management circuit and microprocessor, whether control is powered to the charging end by lithium battery; Described lithium battery polarity testing circuit detects its polarity when lithium battery inserts, and passes through the slidably corresponding adjustment of the slip contact polarity of battery contact pilotage;
The low-voltage that described booster circuit provides described lithium battery is increased to the required high voltage of equipment to be charged, and described DC testing circuit detects the unusual of described booster circuit, and detection signal is sent to described microprocessor;
Described current detection circuit is connected with described DC output port, detects the DC output port and whether connects equipment to be charged, and signal is sent to microprocessor when overweight short circuit, overcurrent or load occurring.
Further, described AC power supplies change-over circuit comprises AC current rectifying and wave filtering circuit and AC power supplies management circuit.
Further, described circuit board also comprises be used to the resistance detecting circuit that the required identification signal of equipment to be charged is provided.
Further, described circuit board also comprises lithium battery alignment detection circuit and electric weight and operating state display circuit, described lithium battery electric weight testing circuit detects the electric weight of lithium battery, and shows its electric weight and operating state by described electric weight and operating state display circuit.
Further, described electric weight and operating state display circuit are made of 3 blue led lamps and 1 three-color LED variable light diode, and described blue led lamp shows dump energy, and described three-color LED variable light diode shows the operating state of charger.
Folding being received in described main casing when further, described AC city plug does not use.
Further, described DC output port is USB port.
Beneficial effect: a kind of intelligent portable multi-function portable power source charger that the utility model provides, AC city plug is integrated in the charger, can directly insert the AC commercial power socket charges to self, required additional power supply adapter and power line when having saved the charging of existing portable power source, and can accept DC by internal microprocessor and adjust circuit, the DC testing circuit, the output signal of circuit such as current detection circuit, the operating state of Based Intelligent Control charger, not only can directly charge to various distinct electronic apparatuses by USB port, play the effect of portable power source, also can serve as charger, directly utilize the AC commercial power socket that distinct electronic apparatuses is charged, play the effect of common charger, product structure is simple, small volume and less weight, cost is lower, integrates multiple function in one, has avoided need carrying multiple power supply adaptor in the out of town trip way, charger, article such as power line and the trouble that produces.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, should understand following embodiment only is used for explanation the utility model and is not used in restriction scope of the present utility model, after having read the utility model, those skilled in the art all fall within the application's claims institute restricted portion to the modification of the various equivalent form of values of the present utility model.
Please refer to Fig. 1 and Fig. 2, the utility model proposes a kind of intelligent portable multi-function portable power source charger, comprise main casing 1, be positioned at the circuit board of main casing 1 inside, described main casing 1 comprises base plate 3 and the cover plate 2 that flexibly connects with base plate 3, described base plate 3 is provided with slidably battery contact pilotage 5 with cover plate 2 junctions, but described main casing 1 also comprises pull battery deck 4, but lithium battery places on the pull battery deck 4 and charges, described main casing 1 bottom surface is provided with AC city plug 7, when the AC commercial power socket is arranged, can directly insert socket charges to the portable power source charger, AC city plug 7 designs for folding structure, collapsible being received in the main casing 1 when not using, described main casing 1 left side is provided with USB port 6, can change line by USB the electronic equipment of various different models is charged.
Please refer to Fig. 3 circuit theory diagrams; described circuit board comprises microprocessor, and AC current rectifying and wave filtering circuit, AC power supplies management circuit, DC output circuit, DC adjust circuit, lithium battery, lithium cell charging circuit, li-ion cell protection management circuit, lithium battery polarity testing circuit, booster circuit, DC testing circuit, resistance detecting circuit, electric weight and status display circuit and current detection circuit.
Import the AC current rectifying and wave filtering circuit after the AC city plug 7 reception alternating currents alternating current is carried out rectifying and wave-filtering, be converted to galvanic current through having the AC power supplies management circuit that disposes power management integrated circuit chip and high frequency transformer then.
Direct current after the conversion divides two-way to export by the DC output circuit, and wherein one the tunnel directly through current detection circuit, and output is given to USB port 6, is used for directly giving waiting to fill the load equipment charging; Another road direct current is defeated by DC and is adjusted circuit, whether adjust this charger of electric circuit inspection by DC and insert in the AC power and detect the operating state of entire circuit and signal is sent to microprocessor and judge for it, described microprocessor judges that according to signal direct current after the conversion is used for directly exporting to described USB port 6 and carries out the charging of equipment to be charged or be used for exporting to the charging that the lithium cell charging circuit carries out lithium battery;
The lithium cell charging circuit is connected with lithium battery polarity testing circuit, microprocessor, controls the lithium cell charging circuit by microprocessor according to the charged state of whole charger, is come to lithium cell charging by the lithium cell charging circuit; The li-ion cell protection management circuit is for occurring overcharging at lithium battery, can entering guard mode when putting with overcurrent excessively; thereby reach the purpose of protection lithium battery; but when protective circuit enters false when looking like to put guard mode; if there is not external condition to get involved; for example enter charged state (insertion charging wire); then guard mode self-locking always keeps, and when inserting charging wire or insert AC city plug 7, circuit still can make lithium battery break away from guard mode and enter normal operating conditions.
Lithium battery polarity testing circuit detects its polarity when lithium battery inserts, and passes through the slidably corresponding adjustment of the slip contact polarity of battery contact pilotage 5; Thereby saved artificially lithium battery has been carried out the adjustment of polarity.
Booster circuit and DC testing circuit are (to be generally 2.5V-4.2V for the voltage that lithium battery is provided; be generally 3.7V) bring up to the voltage (being generally 5V) of portable digital product needed; wherein it is unusual for detection of booster circuit for the DC testing circuit; and detection signal sent to microprocessor 100; whether the communication of li-ion cell protection management circuit and microprocessor is used for controlling and is powered to the charging end by lithium battery.For example, if do not need lithium battery to waiting to fill the load equipment power supply, then booster circuit cuts out, and cuts off the path of lithium cell charging.
Resistance detecting circuit is used for providing product to be charged required identification signal; For example be provided with the charger identification circuit in some product to be charged such as Iphone and Ipad, have only special-purpose charger could give these product chargings, only detecting satisfactory identification signal just can charge, when other charger and the desired signal of charging circuit of Iphone when not matching, then can't give Iphone or Ipad charging.
Current detection circuit is connected in the USB port 6 of mobile charger, is used for detecting whether insert product to be charged on the portable power source charger, and when the overcurrent that may occur or load give microprocessor with signal feedback when overweight; For example charger is placed in the bag or bag in, filled in charge port by key, coin or other metal objects, then can cause the short circuit of charger charge port, current detection circuit then passes to microprocessor with this charge port short-circuit signal, and microprocessor can notify other related circuits to cut off charging circuit.
Electric weight and operating state display circuit are used for showing electric weight and the operating state of charger, adopt 4 LED light-emitting diodes to form, and comprise 3 blue led lamps and 1 three-color LED variable light diode; Wherein the blue led lamp is used for showing the dump energy of charger, three the bright expression charger of blue led lamp Full Charge Capacities for example, and the electric weight of 1 bright expression charger of blue led lamp is lower than 15%; Three look variable light diodes then are used for showing operating state, discharge condition and the bug warning of charger, and when charger 3 flowing water flickers that the blue led lamps also can be order flickers successively when charging, the prompting user charges.
In actual use, microprocessor is in sleep state idle the time, and its static current of lcd is less than 2uA; When the user with electronic product to be charged, mobile phone for example is when inserting charger, current detection circuit detects product insertion to be charged needs charging, then send signal to microprocessor, this moment, microprocessor started booster circuit, charged for product to be charged by lithium battery.
When only inserting the AC commercial power socket with this mobile charger, the user charges, and when not inserting product to be charged, DC adjusts electric circuit inspection to the AC power input is arranged, the information that then will detect sends to microprocessor, microprocessor is waken up from sleep state, because current detection circuit does not detect and remains charge prepd, so microprocessor sends a signal to the lithium cell charging circuit, by the lithium cell charging circuit lithium battery charged.
When the user inserts the AC commercial power socket with this mobile charger, and when simultaneously product to be charged being inserted this mobile charger by USB port 6, current detection circuit detects and remains charge prepd and this detection signal is sent to microprocessor, DC adjustment electric circuit inspection has been inserted on the AC commercial power socket to this mobile charger simultaneously, also this detection signal is sent to microprocessor, at first directly give product charging to be charged by AC power supplies this moment, rather than give product charging to be charged by lithium battery, this moment, microprocessor sent a signal to booster circuit, close booster circuit, then turn-off the charging path between lithium battery and the product to be charged, adjust circuit by AC power supplies through DC and directly give product charging to be charged.When product charging to be charged was finished, the DC testing circuit detected product to be charged and charges, and then sends a signal to microprocessor, and microprocessor then sends a signal to the lithium cell charging circuit, charges for lithium battery 7 by AC power.
The utility model is integrated in AC city plug 7 in the charger, has saved charging wire and the adapter of the needed extra setting of existing mobile charger, and product is small and exquisite, and is light, and cost is lower.In addition, not only can be inserted in and give oneself charging on the AC commercial power socket, can also be used as charger is inserted on the AC commercial power socket directly to product charging to be charged, namely can Intelligent Recognition whether remaining charge prepd inserts, and then judges it is to charge to the lithium cell charging of charger itself or to product to be charged automatically.
The utility model also is provided with reset circuit, when mobile charger because accidental short circuit or other faults when guard mode occurring, can be by plugging charging wire again or AC city plug 7 makes mobile charger enter normal operating conditions by guard mode.