CN201758302U

CN201758302U - Multifunctional charger

Info

Publication number: CN201758302U
Application number: CN2010202665026U
Authority: CN
Inventors: 郑冲
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-07-21
Filing date: 2010-07-21
Publication date: 2011-03-09
Anticipated expiration: 2020-07-21

Abstract

A multifunctional charger is provided with a charging mode selector switch, status indicator lamps and charging interfaces. An AC/DC converter is directly connected with power of AC220V, the AC/DC converter, the status indicator lamp and the selector switch are connected with a processor, and a power distribution module and the charging control module are connected with the charging interfaces 3. The charging interfaces include two USB interfaces, the processor is a single-chip microcomputer, the charging mode selector switch consists of a key switch S1, different modes of the charging mode selector switch can be selected, the power distribution switch adopts a multichannel power distribution switch, the charging control module adopts an NAND gate chip, and the status indicator lamps are two double-color three-pin diodes. The two charging interfaces support simultaneous or successive charging, can adjust magnitude of current, adopts corresponding power cords to charge various different electrical appliances, has automatic switching and power failure functions after finishing charging, and achieves the purpose of saving energy, protecting environments and protecting batteries.

Description

Multifunctional charger

Technical field

The utility model relates to small-sized accompanied electronic device power supply (DPS) adaptive devices such as a kind of mobile phone, Carry-on multimedia player, particularly a kind of multifunctional charger.

Background technology

Along with electronic product enters life in a large number, various electronic apparatus application are in study, work, amusement, but these equipment unavoidably need charging, and number of devices increases, and often each equipment is furnished with charging device separately, at this moment a large amount of chargers have brought inconvenience to life, and the waste social resources.Each equipment charges to electrical appliance separately, to the time, and electric energy, utilization of space is not high.And the charger quality of mass selling is also bad in the market, only has only an easy circuit board among the very large shell, and therefore this charger is compatible and bad to electrical appliance, can cause chronic damage to electrical appliance, influences the equipment physical life.Each charger only is furnished with a power output, can only give an electrical appliance charging at every turn, general electrical appliance only needed just can fulfil assignment in three hours, but people get used to the charging in evening, it once is seven hours, time availability is low like that, and long-time energising also can bring infringement to electrical appliance.Different electrical appliances has different requirements to power supply, but the charger on the market adopts unified standard, easily electrical appliance is caused damage during charging.

China Patent No. is: 200320114471.2 utility model patent discloses a kind of General Multiplex charger for mobile phone, it can regulate charging voltage by switch can only manage charging, can be that 4 different model mobile phones charge simultaneously, but because the use 5V voltage of present most of mobile phones makes the function of its voltage-regulation also impracticable.According to this patent designing requirement, the volume of this product is bigger, has had a strong impact on the portability of this product, is unfavorable for popularizing of this product.

Summary of the invention

The purpose of this utility model is that a kind of multifunctional charger will be provided, and can realize that charging current is adjustable, can while or charging selection successively is provided, charge and finish automatic outage for two electrical appliances.Whole charging device safety, reliable, efficient.

The purpose of this utility model is achieved in that a kind of multifunctional charger, it is characterized in that: charger is provided with charge mode diverter switch 1, status indicator lamp 2 and charging inlet 3; AC/DC transducer 11 directly is connected with AC220V, and AC/DC transducer 11, status indicator lamp 2 and diverter switch 1 are connected with processor 4, and power distribution module 7, charge control module 8 link to each other with charging inlet 3.

Described charging inlet 3 is two USB interface.

Described processor 4 is a single-chip microcomputer.

Described charge mode diverter switch 1 is made up of key switch S1.

Described power distribution module 7 adopts the multiple power supplies dispense switch.

Described charge control module 8 adopts the NAND gate chip.

Described status indicator lamp 2 is two double-colored tripod diodes.

The multifunctional charger beneficial effect that this use new device provides is as follows: 1, key switch-in circuit, only form by S1, can select different pattern (charging simultaneously/successively, big/low current charge).

2, charging inlet adopts USB interface, with normal charge mode compatibility.

3, two charging inlet supports are charged simultaneously or successively, and can regulate size of current, and utilizing corresponding power line is that multiple different electrical appliance carries out charging work.

4, have the function of changing and cutting off the power supply automatically after charging is finished, play the purpose of energy-conserving and environment-protective, protection battery.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the utility model device front view; Fig. 2 is the utility model device right view; Fig. 3 is the utility model device upward view; Fig. 4 is the utility model device AC/DC change-over circuit figure; Fig. 5 is the utility model unit state indicator light circuit figure; Fig. 6 is the utility model device control circuit figure; Fig. 7 is the utility model device fundamental diagram.

Embodiment

A kind of multifunctional charger, charger are provided with charge mode diverter switch 1, status indicator lamp 2 and charging inlet 3; AC/DC transducer 11 directly is connected with AC220V, and AC/DC transducer 11, status indicator lamp 2 and diverter switch 1 are connected with processor 4, and power distribution module 7, charge control module 8 link to each other with charging inlet 3.

Described charging inlet 3 is two USB interface.

Described processor 4 is a single-chip microcomputer.

Described charge mode diverter switch 1 is made up of key switch S1.

Described charge control module 8 adopts the NAND gate chip.

Described status indicator lamp 2 is two double-colored tripod diodes.

Embodiment: as shown in Figure 4, AC220V is output as the stable DC of 5V500mA after 11 outputs of AC/DC transducer, filtering, pressure limiting, current limliting.

As shown in Figure 6, processor 4 is finished the complete machine controlled function by single-chip microcomputer, finishes corresponding model selection by key switch S1; Power distribution module 7-adopts the multiple power supplies dispense switch, be responsible for finishing to the path of four different passages or the controlled function that opens circuit, Enable Pin by its each passage is set (/ENx) level, realize the galvanic output of respective channel 5V, every passage maximum output current is 500mA, realizes that follow-up function does corresponding preparation; Current regulating module is made up of NAND gate chip (charge control module 8) and resistance, through the connection or the disconnection of NAND gate selectivity break-make realization resistance, annexs the automatic conversion and the break function of circuit simultaneously.

Shown in Fig. 1,5, status indicator lamp 2 is made up of two double-colored tripod diodes, by processor to 4 it control, under different patterns, have different color combination, visualize to go out charger state of living in.

Operation principle is as follows: AC220V becomes DC5V and enters processor 4, power distribution module 7 and status indicator lamp 2 after AC/DC transducer 11 is handled, its work energy is provided.During charging, the user according to different user demands press charge mode diverter switch 1S1 select corresponding charge mode (two purpose electric appliance simultaneously/successively, greatly/low current charge).Electrical appliance is connected to charging inlet 3 with corresponding charging wire, and processor 4 can send two charging sockets according to the previous charge mode of setting of user.

1) when the user selects to be two electrical appliance chargings simultaneously, processor 4 can be communicated with or off resistance the requirement indication power distribution module 7 of electric current according to the user, reaches the purpose that changes electric current; 2) when the user selects to be followed successively by two electrical appliance chargings, processor 4 can be according to requirement indication power distribution module 7 connection or the off resistances of user to electric current, the size of Control current.Require processor 4 can cut off a charging circuit according to pattern, when the electrical appliance charging that allows charging was finished, charge control module 8 was sent signal, and processor 4 disconnects this circuit, connects another charging circuit.After another charging circuit charging was finished, charge control module 8 was sent signal, disconnects two circuits simultaneously.

Processor 4 adopts chip microcontroller in this example, power distribution module 7 adopts four-way power supply dispense switch integrated circuit, charge control module 8 is used the NAND gate chip, switch uses small-sized Push switch, AC/DC transducer 11 adopts Industrial Frequency Transformer---carry out step-down, rectification, filtering, voltage stabilizing, finally be output as the 5V direct current.Charging inlet adopts general USB interface 3 at present, and power supply output line is connected to two of the outermost of USB interface 3 four pins, may needs short circuit part stitch according to the demand of different electrical appliances.

Circuit is a charge control module 8 of the present utility model as shown in Figure 6, charging inlet 3, status indicator lamp 2 partial circuits.The input power supply of power distribution module 7 is Enable Pin/ENx (x=1～4 that Vcc (5V) processor 4 is provided with, corresponding different respectively circuit, down together) level is that low level decides the output of related circuit to open, by the DC5V of OUTx end output after isolating, electric energy is delivered to corresponding interface, connected the NAND gate chip in the circuit, be used for switching and testing circuit, realized conversion and cut off the circuit merit.When using when charging successively, charge that among Enable Pin/Enx EN1 only to be arranged when initial be low level, if the electrical appliance charging of NAND gate chip detection to is finished, the level of processor 4EN2 end reduces, the level of EN1 port raises, thereby realizes that circuit switches; When two electrical appliances all charge when finishing, the NAND gate chip then can send the signal of telecommunication, and the level of processor 4EN1 end, EN2 end raises, and realizes protection battery and purpose of energy saving thereby reach.When " trickle charge " pattern of unlatching, the level of processor 4EN3 end, EN4 end reduces, and reaches the purpose that is communicated with the resistance current limliting, thereby reduces charging current.

Claims

1. multifunctional charger, it is characterized in that: charger is provided with charge mode diverter switch (1), status indicator lamp (2) and charging inlet (3);

AC/DC transducer (11) directly is connected with AC220V, and AC/DC transducer (11), status indicator lamp (2) and charge mode diverter switch (1) are connected with processor (4), and power distribution module (7), charge control module (8) link to each other with charging inlet (3).

2. multifunctional charger according to claim 1 is characterized in that: charging inlet (3) is two USB interface.

3. multifunctional charger according to claim 1 is characterized in that: processor (4) is a single-chip microcomputer.

4. multifunctional charger according to claim 1 is characterized in that: charge mode diverter switch (1) is made up of key switch S1.

5. multifunctional charger according to claim 1 is characterized in that: power distribution module (7) adopts the multiple power supplies dispense switch.

6. multifunctional charger according to claim 1 is characterized in that: charge control module (8) adopts the NAND gate chip.

7. multifunctional charger according to claim 1 is characterized in that: status indicator lamp (2) is two double-colored tripod diodes.