CN201113536Y

CN201113536Y - Intelligent charger

Info

Publication number: CN201113536Y
Application number: CNU2007201724805U
Authority: CN
Inventors: 李洪明
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-10-19
Filing date: 2007-10-19
Publication date: 2008-09-10
Anticipated expiration: 2017-10-19

Abstract

The utility model discloses a charger, in particular relating to a multifunction portable intelligent charger used for charging a mobile phone, comprising an outer shell and a charging circuit which is arranged inside the outer shell, wherein, the charging circuit comprises an AC-DC switching circuit and a voltage transformation circuit; an external power source is input to the AC-DC switching circuit which converts alternating current into direct current, and the direct current is then converted into low-voltage DC output through the voltage transformation circuit; and the charging circuit also comprises a charging lithium ion battery which is connected between the AC-DC switching circuit and the low-voltage DC output. The multifunction portable intelligent charger used for charging the mobile phone is simple in structure and convenient in carrying and can replace a mobile phone charger in the prior art to charge the mobile phone; moreover, the charger is provided with the charging lithium ion battery and can charge the mobile phone after voltage rising of the charging lithium ion battery in the charger under the condition that an external power source does not exist, thereby charging of the mobile phone gets rid of dependency on the external power source and a great deal of convenience is brought to the use.

Description

Intelligent charger

Affiliated technical field

The utility model discloses a kind of charger, particularly a kind of portable multifunctional intelligent charger that is used for cell-phone charging.

Background technology

Along with the development of electronic industry and communications industry, mobile phone is no longer strange in people's life, and mobile phone carries with easy to use with it, has become indispensable in a people's daily life important component part.Mobile phone of the prior art none be not to use lithium battery as energy resource supply, so, just become the big problem of mobile phone in using for cell-phone charging, existing charger for mobile phone is divided into two kinds, a kind of is to be inserted on the mobile phone mobile phone is charged, another kind is directly battery of mobile phone to be charged, yet no matter be which kind of charger, all be subjected to the restriction of external power supply, leaving power supply just can not work, therefore bring very big inconvenience can for the use of mobile phone, when people work long hours in no external power supply parts such as fields, the mobile phone change may can't not used because of there be not electricity.In addition, also there is the shortcoming of carrying inconvenience in charger of the prior art.

Summary of the invention

Carry inconvenience, will be subjected to the restriction of external power supply at the above-mentioned charger for mobile phone of mentioning of the prior art, use shortcomings such as inconvenience, the utility model provides a kind of new charger construction, it is provided with a rechargeable battery in charger, can utilize rechargeable battery that mobile phone is charged when not having external power supply.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of intelligent charger, comprise shell and place the interior charging circuit of shell, charging circuit comprises AC-DC change-over circuit, transforming circuit, external power supply input AC-DC change-over circuit is converted to direct current with alternating current, be converted to low voltage DC output through transforming circuit again, also include the charging lithium ion battery in the charging circuit, the charging lithium ion battery is connected between AC-DC change-over circuit and the low voltage DC output.

The technical scheme that its technical problem that solves the utility model adopts further comprises:

Also include the change over switch of convert charging state in the described charging circuit.

Also include voltage detecting circuit and electronic switching circuit in the described charging circuit, the voltage detecting circuit test side is connected on the low voltage DC output interface, the voltage detecting circuit output is connected on the control end of electronic switching circuit, and electronic control switch is connected between the transforming circuit preceding positive source and ground.

Be provided with lithium battery protection circuit between two electrode outputs of the charging lithium ion battery of described charging circuit.

Described shell comprises face-piece, drain pan and the loam cake of mutual snapping, face-piece fixedly installs with drain pan is in the same place, charging circuit is arranged in the cavity of face-piece and drain pan formation, be set with attaching plug on the shell, the input of the AC-DC change-over circuit in attaching plug and the charging circuit is connected, the loam cake lid is contained in the attaching plug place, is connected with charging plug by output lead on the shell, and charging plug is connected with the low voltage DC output of charging circuit.

Have the groove of placing charging plug on the described shell.

The described shell outside has the groove of placing lead.

Be connected by chain between described shell and the loam cake.

The groove of described placement charging plug is arranged on the loam cake place.

The beneficial effects of the utility model are: the utility model is simple in structure, contour structures and size are very small and exquisite, give to carry and bring great convenience, alternative charger for mobile phone of the prior art charges to mobile phone, in addition, be provided with rechargeable battery in the utility model, do not having under the situation of external power supply, can mobile phone be charged by the rechargeable battery in the utility model, make cell-phone charging break away from dependence, bring a lot of convenience to use to external power supply.

Below in conjunction with the drawings and specific embodiments the utility model is described further.

Description of drawings

Fig. 1 is the utility model power unit circuit theory diagrams.

Fig. 2 is the utility model electric energy conversion portion circuit theory diagrams.

Fig. 3 is the utility model decomposing state structural representation.

Among the figure, 1-face-piece, 2-drain pan, 3-loam cake, 4-switch plectrum, 5-first installing hole, 6-second installing hole, 7-charging plug groove, 8-wire grooves, 9-indicator lamp hole, 10-switch installing hole, 11-wire outlet.

Embodiment

Present embodiment is the utility model preferred implementation, and other all its principle is identical with present embodiment or approximate with basic structure, all within the utility model protection range.

Please referring to accompanying drawing 1, as the power supply source, the 220V alternating current is approximate direct current by rectifier bridge U1 rectification to the utility model by the input of 220V external power supply, then through exporting to cell-phone charging by the VOUT end after the transformer T1 transformation.In the present embodiment, be connected with charging indicator light red and green color LED (do not charge or charge and give a green light when finishing) between VOUT end place and the ground, be connected with the base stage of triode Q3 at opposition one end of VOUT end, light-emitting diode R and triode Q3 are serially connected between VOUT end and the ground, after when charging, red and green color LED sends out a warning, and red and green color LED is denoted as D4 and D5 in the accompanying drawings.The resistance R 8 and the resistance R 9 that are connected in series between VOUT end and the ground, the common port of resistance R 8 and resistance R 9 is connected with voltage reference chip U3, the control input end of voltage reference chip U3 and optocoupler U2 is connected in series, the output of optocoupler U2 is connected with the base stage of triode Q2, the grounded emitter of triode Q2, the collector electrode of triode Q2 is connected with the base stage of triode Q1 with external power supply is anodal respectively, the collector electrode of triode Q1 is connected with the transformer output, and the emitter of triode Q1 is by resistance R 6 ground connection.Please referring to accompanying drawing 2, acp chip in this circuit is the chip U6 that boosts, the input of chip U6 of boosting is connected with the 7th pin of switch SW 1 by inductance L 1, the output of chip U6 of boosting is connected with the 2nd pin of switch SW 1, the 1st pin of switch SW 1 is connected with positive supply input VI+, promptly be connected with VOUT among Fig. 1, the 3rd pin of switch SW 1 is connected with the VO+ end, it promptly is positive output end, the 6th pin of switch SW 1 is connected with the anodal B+ of rechargeable battery, is connected with the indication LED between the 5th pin of switch SW 1 and the ground.Positive supply input VI+ is by diode D3 and rechargeable battery positive pole, and promptly the B+ end connects.In the present embodiment, rechargeable battery adopts lithium battery, is connected with lithium battery protection circuit U5 between anodal B+ of rechargeable battery and the rechargeable battery negative pole B-, when rechargeable battery is charged it is protected.When switch SW 1 was got to first gear, the 1st pin of switch SW 1 and the 3rd pin were connected, and utilize external power supply that external mobile phone is charged, and simultaneously rechargeable battery are charged.When switch SW 1 was got to second gear, the 2nd pin of switch SW 1 and the 3rd pin were connected, and the 6th pin and the 7th pin are connected, and utilized the interior rechargeable battery of charger to boost and then external mobile phone were charged; When switch SW 1 was got to the 3rd gear, the 5th pin of switch SW 1 and the 6th pin were connected, and utilized the rechargeable battery in the charger highlighted LED (D6) to be discharged emergency lighting through the R15 current limliting;

Please referring to accompanying drawing 3, face-piece 1 matches with drain pan 2, form a cavity, charging circuit is arranged in the cavity, be installed with attaching plug on the shell, attaching plug is connected with the external power supply input of charging circuit, the attaching plug next door has the charging plug groove 7 of placing charging plug, the attaching plug place is provided with loam cake 3, loam cake 3 can cover and be contained in attaching plug and sentence and block attaching plug and charging plug groove 7, have first installing hole 5 on the loam cake 3, its with open the use that matches of second installing hole on shell, can loam cake 3 and shell be linked together by chain.The charging plug that cooperates with mobile phone is connected with charging circuit by the lead that stretches out in the shell, and lead is drawn by wire outlet 11 places, has between outlet 11 of shell outboard wire and the charging plug groove 7 and places the wire grooves 8 that lead is used.Also have indicator lamp hole 9 on the shell, be used to check that indicator light D6 uses, indicator lamp hole 9 next doors also have switch installing hole 10, switch SW 1 in the charging circuit is arranged on switch installing hole 10 places, for easy to use, switch installing hole 10 places are equipped with switch plectrum 4, and switch plectrum 4 is plugged on the switch SW 1.

Use of the present utility model is divided into four kinds of different forms: the first, and utilize external power supply that the rechargeable battery in the utility model is charged, only need switch SW 1 is got to first gear, attaching plug is inserted the 220V external electric supply socket get final product; The second, utilize external power supply to cell-phone charging, soon the utility model uses as the regular handset charger, only needs switch SW 1 is got to first gear, and attaching plug is inserted the 220V external electric supply socket, Mobile phone plug is inserted in the mobile phone get final product; The 3rd, utilize the interior rechargeable battery of the utility model to cell-phone charging, only need be got to second gear with switch SW 1, Mobile phone plug are inserted in the mobile phone get final product; The 4th, utilize the rechargeable battery in the utility model to be used as emergency lighting, only need switch SW 1 is got to the 3rd gear.

The utility model can be widely used in the various charger for mobile phone, can be used for replacing various charger for mobile phone of the prior art to use.

Claims

1, a kind of intelligent charger, comprise shell and place the interior charging circuit of shell, charging circuit comprises AC-DC change-over circuit, transforming circuit, external power supply input AC-DC change-over circuit is converted to direct current with alternating current, be converted to low voltage DC output through transforming circuit again, it is characterized in that: also include the charging lithium ion battery in the described charging circuit, the charging lithium ion battery is connected between AC-DC change-over circuit and the low voltage DC output.

2, intelligent charger according to claim 1 is characterized in that: the change over switch that also includes the convert charging state in the described charging circuit.

3, intelligent charger according to claim 1 and 2, it is characterized in that: also include voltage detecting circuit and electronic switching circuit in the described charging circuit, the voltage detecting circuit test side is connected on the low voltage DC output interface, the voltage detecting circuit output is connected on the control end of electronic switching circuit, and electronic control switch is connected between the transforming circuit preceding positive source and ground.

4, intelligent charger according to claim 1 and 2 is characterized in that: be provided with between the output of two electrodes of the charging lithium ion battery of described charging circuit overcharge, cross put, circuit overcurrent protection.

5, intelligent charger according to claim 1, it is characterized in that: described shell comprises face-piece, drain pan and the loam cake of mutual snapping, face-piece fixedly installs with drain pan is in the same place, charging circuit is arranged in the cavity of face-piece and drain pan formation, be set with attaching plug on the shell, the input of the AC-DC change-over circuit in attaching plug and the charging circuit is connected, the loam cake lid is contained in the attaching plug place, be connected with charging plug by output lead on the shell, charging plug is connected with the low voltage DC output of charging circuit.

6, intelligent charger according to claim 5 is characterized in that: have the groove of placing charging plug on the described shell.

7, intelligent charger according to claim 5 is characterized in that: the described shell outside has the groove of placing output lead.

8, intelligent charger according to claim 5 is characterized in that: be connected by chain between described shell and the loam cake.

9, intelligent charger according to claim 6 is characterized in that: the groove of described placement charging plug is arranged between loam cake and main body.