CN201323464Y

CN201323464Y - Electronic equipment charger and charging device for electronic equipment

Info

Publication number: CN201323464Y
Application number: CNU2008202355304U
Authority: CN
Inventors: 张和平
Original assignee: Shenzhen Huawei Communication Technologies Co Ltd
Current assignee: Huawei Device Co Ltd
Priority date: 2008-12-22
Filing date: 2008-12-22
Publication date: 2009-10-07
Anticipated expiration: 2018-12-22

Abstract

The utility model adds a relay switch on an electronic equipment charger. In the utility model, electronic equipment controls the make and break of the relay switch according to the charging status of the electronic equipment. Therefore, the charger is physically shut off from a power supply after the electronic equipment is fully charged so as to avoid energy waste caused by power consumption due to the idling of the electronic equipment after the electronic equipment is fully charged.

Description

Electronic equipment charger and charging device of electronic appliances

Technical field

The utility model relates to electronic equipment, relates in particular to a kind of electronic equipment charger and charging device of electronic appliances.

Background technology

Development along with the personal mobile communication business, the mobile radio communication of China has become the network in the whole world first, the number of mobile phone users of China has also broken through 500,000,000, and a large amount of changes at usefulness mobile phone, frequent mobile phone, makes the energy-saving and emission-reduction of mobile phone become public's question of common concern.

Carry out YD/T1591-2006 " mobile phone charger and interfacing require and method of testing " before in China, owing to consider the cost problem of charger, what a lot of chargers all adopted is a kind of technology of linear transformer, a large amount of electric energy all consumes in the charging process in the autophage of transformer, has only 30% energy really to be charged in the mobile phone.

After carrying out YD/T1591-2006, the charger for mobile phone of China has been executed this standard, require present charger to adopt the mode of switching mode transformation to improve the conversion efficiency of the energy in actual charging process, require the average efficiency of charger to be not less than 50% among the 4.4.11 of this standard.

Average size 800mAh with battery of mobile phone calculates, if the efficient of charger has improved 20%, mobile phone electric energy of saving that once charges is 800mAh * 20% * 5V=0.8Wh, if according to 500,000,000 mobile phones, every annual 100 calculating that needs to charge of mobile phone, the annual electric energy that can save is at 0.8Wh * 5 * 1010=4 * 1010Wh, promptly about 4,000 ten thousand kWh;

In addition, because consumer's use habit, many consumers get used to charger is inserted on the power supply for a long time, and at this moment the non-loaded energy consumption of charger is also very considerable.For this reason, the 4.4.10 in the standard limits the non-loaded energy consumption of charger less than 300mW.

If according to 500,000,000 mobile phones, every annual 100 calculating that needs to charge of mobile phone, we suppose in average each charging simultaneously, 2 hours non-loaded consumption after finishing, cell-phone charging is arranged, requirement according to new standard, power consumption when unloaded is 200mW, non-loaded charging process is saves energy 200mW * 2h * 5 * 1010=2 * 1010Wh, promptly about 20,000,000 kWh.

The no-load consumption of charger this shows, owing to approximately will waste 2,000 ten thousand kWh. every year

Along with the raising of China to energy-saving and emission-reduction, the requirement of developing a circular economy, putting teeth in of China YD/T1591-2006 " mobile phone charger and interfacing requiring and method of testing ", the energy consumption of traditional charge mode of Jiang Diing to a certain extent, but still can't thoroughly solve the wasting of resources that charger is brought unloaded the time.

The utility model content

The utility model embodiment purpose be to provide a kind of the electronic equipment charging finish or the charger zero load in automatic disconnection the electronic equipment charger and the charging device of electronic appliances that connect.

The utility model embodiment provides a kind of electronic equipment charger, comprising: relay switch, and described relay switch one end is connected with electric connector, is used for electrically connecting with external electrical network; Charging circuit, charging circuit one side is electrically connected with relay switch, and opposite side is connected with charging plug; Control signal wire, an end is connected with relay switch, and the other end is used for and is recharged electronic equipment and is connected, and holding wire can transmit from the level signal that is recharged electronic equipment, control relay switch closure or disconnection.

The utility model embodiment also provides a kind of charging device of electronic appliances, comprises charger and is recharged electronic equipment, and described charger comprises: relay switch, and described relay switch is connected with electric connector, is used for electrically connecting with external electrical network; Charging circuit, charging circuit one side is electrically connected with relay switch, and opposite side is connected with charging plug; Control signal wire, an end is connected with relay switch, and the other end is used for and is recharged electronic equipment and is connected, and holding wire can transmit from the level signal that is recharged electronic equipment, control relay switch closure or disconnection; The described electronic equipment that is recharged comprises: processor, described processor is integrated with digital to analog converter, digital to analog converter can be by detecting the signal whether described voltage of electronic equipment output charging is finished, and described processor arrives control signal wire by interface output level control signal.

Electronic equipment charger and charging device of electronic appliances that the utility model embodiment provides can be finished in electronic equipment charging, or the automatic disconnection charger zero load time, avoid energy waste.

Description of drawings

Fig. 1 is the circuit connection diagram of a kind of charging device of electronic appliances of the utility model.

Embodiment

Specifically the utility model embodiment is specifically described in conjunction with Fig. 1.

See also Fig. 1, charger 2 one of serial connection both can have been used mechanical system, also can control the relay switch 21 of switching with high and low level, in charger 2 inside, the alternating current of AC network 1 is connected to inner charging circuits such as transformer 22 earlier through relay switch 21.

Charger 2 is given the direct voltage after electronic equipment 3 provides conversion, the microprocessor of electronic equipment 3 is by the Kai Heguan of a GPIO (general input, output interface) the control line control relay switch 21 of drawing of output, concrete, high level control relay switch is closed, and low level control relay switch is for disconnecting.Certainly, other control mode signal also is fine.The control line of drawing from microprocessor is directly connected to the control end of relay switch 21.So, when relay switch 21 is in the condition of disconnection, charger 2 and AC network 1 just disconnected from physical connection fully.

When giving electronic equipment 3 chargings, if terminal equipment can be started shooting, by the software of electronic equipment 3 manually is set, electronic equipment 3 is set to charge, under charged state, high level of the GPIO mouth of terminal microprocessor output, this high level directly has been added to the control end of relay switch 21 by this root control line, under high level state, relay switch 21 is in closure state.Alternating current just begins normal charging by relay switch.If the battery of electronic equipment 3 has not had electricity, can't start shooting, can start shooting normally by manual control relay closure, electronic equipment 3 just can charge normally subsequently;

Electronic equipment 3 charges according to the requirement of terminal equipment battery charge after carrying out normal charging process, finishes whole charging process.

Electronic equipment 3 detects the voltage of rechargeable battery by AD (digital-to-analogue) transducer that is integrated in electronic equipment 3 processors, and decides current charging should be in what charged state according to the voltage of this detection.Usually the charging of battery needs process: trickle, constant voltage, constant current, these four different charged states of saturated charging.When a charged state began, electronic equipment 3 write down the time that current this charged state continues by the timer of inside.In addition, terminal equipment also can write down the elapsed charged state of current charging.If the time of current charged state equals the predefined charging interval, terminal equipment can finish current charged state, enters next charged state.Have only the charging when battery to experience saturated charging, and the time of saturated charging equal the predefined charging interval, terminal equipment can assert that this charging finishes.For example: the voltage of battery has satisfied predefined cell voltage saturation value, and charged state is recorded in the time of saturated charging and finishes, and terminal equipment just judges that whole charging process finishes like this.In whole charging process, terminal equipment can be exported a high level always, guarantees that relay switch 21 is in closure state and charges normally;

After electronic equipment 3 had determined that this process of charging is finished, electronic equipment 3 can output low level come control relay 21 to disconnect, and whole charging process is finished; Finish whole charging;

The above; it only is the preferable embodiment of the utility model; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of claim.

Claims

1, a kind of electronic equipment charger is characterized in that, comprising:

Relay switch, described relay switch one end is connected with electric connector, is used for electrically connecting with external electrical network;

Charging circuit, charging circuit one side is electrically connected with relay switch, and opposite side is connected with charging plug;

Control signal wire, an end is connected with relay switch, and the other end is used for and is recharged electronic equipment and is connected, and holding wire can transmit from the level signal that is recharged electronic equipment, control relay switch closure or disconnection.

2, electronic equipment charger as claimed in claim 1 is characterized in that, described electronic equipment charger further comprises manual control button, is connected control relay switch closure or disconnection with relay switch.

3, electronic equipment charger as claimed in claim 1 is characterized in that, described electric connector is a plug.

4, a kind of charging device of electronic appliances comprises charger and is recharged electronic equipment, it is characterized in that:

Described charger comprises:

Relay switch, described relay switch is connected with electric connector, is used for electrically connecting with external electrical network;

Control signal wire, an end is connected with relay switch, and the other end is used for and is recharged electronic equipment and is connected, and holding wire can transmit from the level signal that is recharged electronic equipment, control relay switch closure or disconnection;

The described electronic equipment that is recharged comprises:

Processor, described processor is integrated with digital to analog converter, and digital to analog converter can be by detecting the signal whether described voltage of electronic equipment output charging is finished, and described processor arrives control signal wire by interface output level control signal.

5, charging device of electronic appliances as claimed in claim 3 is characterized in that, described charger further comprises:

Manual control button is connected with relay switch, control relay switch closure or disconnection.

6, charging device of electronic appliances as claimed in claim 3 is characterized in that, described interface is the GPIO interface.