CN103259339A - Terminal device and method for wireless charging between terminal devices - Google Patents

Terminal device and method for wireless charging between terminal devices Download PDF

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Publication number
CN103259339A
CN103259339A CN2012100400306A CN201210040030A CN103259339A CN 103259339 A CN103259339 A CN 103259339A CN 2012100400306 A CN2012100400306 A CN 2012100400306A CN 201210040030 A CN201210040030 A CN 201210040030A CN 103259339 A CN103259339 A CN 103259339A
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Prior art keywords
terminal equipment
solenoid
battery
circuit
control
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CN2012100400306A
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Chinese (zh)
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付勇杰
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Lenovo Beijing Ltd
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Lenovo Beijing Ltd
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Priority to CN2012100400306A priority Critical patent/CN103259339A/en
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Abstract

The invention discloses a terminal device and a method for wireless charging between terminal devices. The method for wireless charging between the terminal devices is used for achieving wireless charging between the terminal devices. The method for wireless charging between the terminal devices comprises the steps that when a first terminal device serves as a charging device, a first transmission control circuit provides alternating current for a first electromagnetic coil after the first transmission control circuit converts direct current into the alternating circuit provided by a first battery, so that the first electromagnetic coil is in a transmission state, wherein the first terminal device comprises the first transmission control circuit, the first battery is connected with the first transmission control circuit, and the first electromagnetic coil is connected with the first transmission control circuit. When a second terminal device serves as a charged device, a second electromagnetic coil carries out induction on electromagnetic energy transmitted by the first electromagnetic coil to obtain electromotive force, wherein the second terminal device comprises the second electromagnetic coil, a second receiving circuit carries out charging on a second battery after the second receiving circuit converts alternating current provided by the second electromagnetic coil into direct current, wherein the second terminal device comprises the second receiving circuit, the second receiving circuit is connected with the second electromagnetic coil, and the second receiving circuit is connected with the second battery.

Description

The method of wireless charging between a kind of terminal equipment and terminal equipment
Technical field
The present invention relates to the terminal equipment technical field, relate in particular to the method for wireless charging between a kind of terminal equipment and terminal equipment.
Background technology
At present, along with developing rapidly of electronic technology, various terminal equipments are more and more, and to lightness, miniaturization development.Along with appearance and the widespread usage of various terminals, under various environment, in time for charging, terminal equipment becomes the problem of more and more being paid close attention to; Simultaneously, the quantity problem of terminal equipment becomes a key factor of its development of restriction, in case the electric weight deficiency of terminal equipment, in the time of can not in time charging for it again, this terminal equipment can't normally use.
There is not general general charger between distinct device in tradition for the mode of terminal equipment charging all is by connecting line or connector battery to be charged.The user need carry a plurality of batteries when going out, in order at any time battery is changed, perhaps carry a plurality of chargers that are respectively applied to distinct device.This brings very big inconvenience for user's use, and the user usually can make terminal equipment not use because of leaving behind battery or charger, has influenced the normal use of terminal equipment, for the user brings very big inconvenience.For example, the user is in the way of going out, if mobile phone electric weight deficiency can't use the handset call function, and residing environment makes the user can't use charger to be cell-phone charging; Perhaps the user leaves behind charger or reserve battery, and causing in time to charge makes the user can't continue to use.Simultaneously, existing mode of charging by charger needs frequent plug, is easy to cause joint to damage, and is easy to get an electric shock.In addition, existing electronic product is of a great variety, a user may use a plurality of electronic products simultaneously, for example mobile phone, MP3, digital camera, notebook computer etc., and every kind of electronic product need use charger separately, objectionable intermingling so just makes the user need carry a plurality of chargers simultaneously.
The wireless charging technology refers to by wireless mode, rather than traditional method that electronic equipment provides electric power that is connected to of passing through electric wire, and wireless charging is the wide new technology of present development prospect.As shown in Figure 1, in the existing wireless charging technology, need to adopt two parts: the base (as expelling plate) for the band emission function, another electronic equipment for the band receiving function (as the mobile phone, MP3 etc. of band receiving function), wherein, comprise primary coil in the base of band emission function, make primary coil be in emission state by Alternating Current Power Supply, in the electronic equipment of band receiving function secondary coil is set, this secondary coil carries out electromagnetic coupled with the primary coil that is in emission state and obtains electric energy.
But, also do not appear at the mode of carrying out wireless charging between the terminal equipment in the prior art.
Summary of the invention
The invention provides the method for wireless charging between a kind of terminal equipment and terminal equipment, can realize the wireless charging between the terminal equipment, and then new terminal equipment charging modes is provided.
The concrete technical scheme that the embodiment of the invention provides is as follows:
A kind of terminal equipment comprises battery, and described terminal equipment also comprises solenoid, countdown circuit, receiving circuit and control switching circuit;
Described countdown circuit connects described solenoid respectively and described battery forms first branch road, offers described solenoid after being used for the direct current that described battery provides is converted to interchange, makes described solenoid be in emission state;
Described receiving circuit connects described battery respectively and described solenoid forms second branch road, is described battery charge after being used for changing the interchange that the electromotive force that described solenoid induction obtains provides into direct current;
Described control switching circuit connects described countdown circuit and described receiving circuit respectively, is used for the described countdown circuit of control and described receiving circuit conducting or disconnection.
The method of wireless charging between a kind of terminal equipment, described method comprises:
First terminal equipment is during as charging device, and the direct current that first battery that first countdown circuit that comprises will connect provides is converted to first solenoid that offers connection after the interchange, makes described first solenoid be in emission state;
When the conduct of second terminal equipment is recharged equipment, the electromagnetic energy that second solenoid that comprises is responded to described first solenoid emission obtains electromotive force, and the interchange that described second solenoid that second receiving circuit that comprises will connect provides is second battery charge that connects after changing direct current into.
Based on technique scheme, in the embodiment of the invention, by solenoid, countdown circuit, receiving circuit and control switching circuit are set in terminal equipment, battery, countdown circuit and solenoid are connected and successively when being in conducting state, the direct current that countdown circuit provides battery offers solenoid after being converted to interchange, makes solenoid be in emission state; Solenoid, receiving circuit and battery are connected successively and when being in conducting state, make solenoid be in accepting state, and the interchange that the electromotive force that the solenoid induction obtains provides is battery charge after changing direct current into; By control switching circuit control countdown circuit and receiving circuit conducting or disconnection, realize that solenoid switches between emission state and accepting state, thereby the solenoid at a terminal equipment is in emission state, when the solenoid of another terminal equipment is in accepting state, can realize adopting a terminal equipment is another terminal equipment wireless charging, thereby the wireless charging between the realization terminal equipment also can adopt the wireless charging mode to be this terminal equipment charging simultaneously.
Description of drawings
Fig. 1 is existing wireless charging device schematic diagram;
Fig. 2 is terminal equipment structural representation in the embodiment of the invention;
Fig. 3 is the method flow diagram of wireless charging between terminal equipment in the embodiment of the invention;
Fig. 4 is the structure chart of wireless charging between terminal equipment in the embodiment of the invention.
Embodiment
In order to realize the wireless charging between the terminal equipment, make a terminal equipment to carry out wireless charging for another terminal equipment, the embodiment of the invention provides the method for wireless charging between a kind of terminal equipment and terminal equipment.
Below in conjunction with accompanying drawing the preferred embodiment of the present invention is elaborated.
As shown in Figure 2, in the embodiment of the invention, terminal equipment also comprises solenoid 21, countdown circuit 22, receiving circuit 23 and control switching circuit 24 except comprising battery 20, wherein,
Countdown circuit 22 connects solenoid 21 and battery 20 respectively and forms first branch road, offers solenoid 21 after being used for the direct current that battery 20 provides is converted to interchange, makes solenoid 21 be in emission state;
Receiving circuit 23 connects battery 20 and solenoid 21 respectively and forms second branch road, is battery 20 chargings after being used for changing the interchange that the electromotive force that solenoid 21 inductions obtain provides into direct current;
Control switching circuit 24 connects countdown circuit 22 and receiving circuit 23 respectively, is used for control countdown circuit 22 and receiving circuit 23 conductings or disconnection.
In the present embodiment, what battery 20, countdown circuit 22 and solenoid 21 were connected to form is transmitting branch, when this branch road is in conducting state, the electric current that countdown circuit 22 provides at battery 20 carries out flowing through solenoid 21 after the operations such as frequency conversion, transformation, make near solenoid 21 electromagnetic fields that produce the higher-order of oscillation, this moment, solenoid 21 was in emission state.
In the embodiment of the invention, what solenoid 21, receiving circuit 23 and battery 20 were connected to form is receiving branch, when this branch road is in conducting state, solenoid 21 induction fields that are in the electromagnetic field form induced current, this induced current carries out through receiving circuit 23 forming stable direct current after the operations such as rectification, voltage stabilizing, by battery 20 chargings of this direct current for connecting.
Preferably, control switching circuit 24 is integrated in the ad hoc control chip, perhaps is integrated in the main control chip of terminal equipment.
In a concrete realization, control chip or main control chip are provided with the first control pin and connect countdown circuit 22, are provided with the second control pin and connect receiving circuit 23; Control chip or main control chip are by level control countdown circuit 22 conductings or the disconnection of the first control pin output; Control chip or main control chip are by level control receiving circuit 23 conductings or the disconnection of the second control pin output.Wherein, the first control pin and the second control pin can be any input and output (I/O) pins of control chip or main control chip, and countdown circuit or the receiving circuit of the change in pressure drop control connection by control I/O pin switch between conducting state and off-state.
Preferably, can also be provided with the control switch that is connected with control chip or main control chip on the terminal equipment, when control chip or main control chip detection and definite this control switch are first state, by the level control countdown circuit conducting of the first control pin output; When control chip or main control chip detection and definite this control switch are second state, by the level control receiving circuit conducting of the second control pin output; When control chip or main control chip detection and definite this control switch are the third state, by the first control pin and second control valve foot control countdown circuit processed and receiving circuit disconnection.In the practical application, the terminal equipment acquiescence can be set be in the wireless receiving state.Wherein, control switch can be by triggering control etc. by key control or by user interface controls is set, and when carrying out by key control, can be to adopt the button that arranges separately, also can be to adopt existing button or key combination to control.
Herein, adopt control chip or main control chip control countdown circuit 22 and receiving circuit 23 between conducting state and off-state, to switch only for giving an example, in the practical application, multiple implementation can be arranged, as long as can reach the purpose of controlling countdown circuit 22 and receiving circuit 23 conductings or disconnection respectively.For example, in another concrete realization, can also adopt multicontact switch control countdown circuit 22 and receiving circuit 23 between conducting state and off-state, to switch, that is: first contact of multicontact switch connects receiving circuit 23, second contact connects countdown circuit 22, the three contacts and connects solenoid 21; When this switch of switching is communicated with first contact and the 3rd contact, the receiving branch conducting, then solenoid 21 acquisition induced electromotive forces are battery 20 chargings by receiving circuit 23; When switching this switch second contact and the 3rd contact are communicated with, the transmitting branch conducting makes solenoid be in emission state after then the electric current that provides of 22 pairs of batteries 20 of countdown circuit is changed; And switching this switch to not connecting or during the 4th contact of ground connection, then the wireless charging function of terminal equipment is in closed condition.
Preferably, the terminal equipment in the embodiment of the invention is portable terminal, for example, and mobile phone, notebook computer, MP3, MP4, panel computer etc.
Shown in accompanying drawing 3 and accompanying drawing 4, the method for wireless charging between a kind of terminal equipment also is provided in the embodiment of the invention, the detailed process of this method is as follows:
Step 301: first terminal equipment is during as charging device, and the direct current that first battery that first countdown circuit that comprises will connect provides is converted to first solenoid that offers connection after the interchange, makes first solenoid be in emission state.
In the embodiment of the invention, first terminal equipment possesses emission function at least, namely the electric current that provides at first battery of first countdown circuit that comprises in first terminal equipment carries out flowing through first solenoid after the operations such as frequency conversion, transformation, make near the electromagnetic field that produces the higher-order of oscillation of this first solenoid, this moment, first solenoid was in emission state.
In a preferable realization, the direct current that first battery that first countdown circuit that first terminal equipment comprises will connect provides is converted to before the interchange, i.e. control respectively with the first countdown circuit conducting that first battery is connected with first solenoid before, whether the dump energy of judging earlier first battery surpasses first setting threshold, when surpassing first setting threshold, the direct current that first battery that first countdown circuit that control comprises will connect provides is converted to interchange, namely controls the first countdown circuit conducting.In this implementation, by judging the dump energy of first battery, when definite dump energy surpasses first setting threshold, just control the first countdown circuit conducting, make first solenoid be in emission state, in order to be other terminal equipment charging beyond self, otherwise, the off-state that still keeps first countdown circuit to guarantee self having enough electric weight, guarantees the normal use of first terminal equipment.
In another preferable realization, the direct current that first battery that first countdown circuit that first terminal equipment comprises will connect provides is converted to before the interchange, namely control respectively with the first countdown circuit conducting that first battery is connected with first solenoid before, judge whether to receive the charging request that second terminal equipment sends earlier, when receiving the charging request of second terminal equipment generation, the direct current that first battery that first countdown circuit that control comprises will connect provides is converted to interchange, namely control the first countdown circuit conducting, wherein, the charging request is that second terminal equipment sends when the electric weight of determining self-contained second battery is lower than second setting threshold.In this implementation, can be other power terminal equipment automatically according to the charging request that receives, improve automaticity.Similarly, in this implementation, first terminal equipment also can be after the charging request that receives the transmission of second terminal equipment, further judge the dump energy of self-contained first battery, when the electric weight of then determining first battery surpasses first setting threshold, control in first terminal equipment respectively the first countdown circuit conducting that is connected with first solenoid with first battery again.Thereby guaranteeing self to have enough electric weight, under the prerequisite that guarantees self can normally use, is other terminal equipment charging beyond self again.
Step 302: when the conduct of second terminal equipment is recharged equipment, the electromagnetic energy that second solenoid that comprises is responded to the emission of first solenoid obtains electromotive force, and the interchange that second solenoid that second receiving circuit that comprises will connect provides is second battery charge that connects after changing direct current into.
Wherein, second terminal equipment comprises receiving branch at least, its second solenoid that comprises receives the electromagnetic energy of first solenoid emission of first terminal equipment, and be converted to electric energy by second receiving circuit of second terminal equipment after second battery that comprises of input second terminal equipment, be second battery charge.
Preferably, second terminal equipment sends the charging request when the electric weight of determining its second battery that comprises is lower than second setting threshold, control the branch road conducting that second solenoid, second receiving circuit and second battery are formed simultaneously, first terminal equipment receives this charging request back control first solenoid and is in emission state, second solenoid obtains electromotive force by the electromagnetic field inducing that first solenoid produces, and the interchange that second receiving circuit provides second solenoid is second battery charge after changing direct current into.Wherein, it can be that the user triggers according to battery dump energy that second terminal equipment sends the charging request, also can be that second terminal equipment sends behind the dump energy of setting-up time judgement self battery automatically.It can certainly be the triggering that user's manual operation produces.
In a preferable realization, the direct current that first battery that first countdown circuit that first terminal equipment comprises will connect provides is converted to first solenoid that offers connection after the interchange, described first solenoid is in after the emission state, namely control after the first countdown circuit conducting, first terminal equipment is in the process of second terminal equipment charging, first terminal equipment judges that every setting duration whether the dump energy of first battery is less than the 3rd setting threshold, and when determining less than the 3rd setting threshold, control first countdown circuit and disconnect, stopping is the charging of second terminal equipment.This implementation can effectively be avoided causing the electric weight deficiency of self for other terminal equipment charges, and influences the normal use of self.
Wherein, first terminal equipment and second terminal equipment are portable terminal.For example, mobile phone, notebook computer, MP3, MP4, panel computer etc.
Preferably, in actual applications, the power of first terminal equipment can reach preferable wireless charging effect during greater than the power of second terminal equipment.
Wherein, second terminal equipment can only have receiving function, also can be to have receiving function and emission function simultaneously.Preferably, also comprise respectively first receiving circuit that is connected with first battery with first solenoid in first terminal equipment, also comprise respectively second countdown circuit that is connected with second battery with second solenoid in second terminal equipment; Second terminal equipment is during as charging device, and the direct current that second battery that second countdown circuit that comprises will connect provides is converted to second solenoid that offers connection after the interchange, makes second solenoid be in emission state; When the conduct of first terminal equipment is recharged equipment, the electromagnetic energy that first solenoid that comprises is responded to the emission of second solenoid obtains electromotive force, and the interchange that first solenoid that first receiving circuit that comprises will connect provides is first battery charge that connects after changing direct current into.
Based on technique scheme, in the embodiment of the invention, by solenoid, countdown circuit, receiving circuit and control switching circuit are set in terminal equipment, battery, countdown circuit and solenoid are connected and successively when being in conducting state, the direct current that countdown circuit provides battery offers solenoid after being converted to interchange, makes solenoid be in emission state; Solenoid, receiving circuit and battery are connected successively and when being in conducting state, make solenoid be in accepting state, and the interchange that the electromotive force that the solenoid induction obtains provides is battery charge after changing direct current into; By control switching circuit control countdown circuit and receiving circuit conducting or disconnection, realize that solenoid switches between emission state and accepting state, thereby the solenoid at a terminal equipment is in emission state, when the solenoid of another terminal equipment is in accepting state, can realize adopting a terminal equipment is another terminal equipment wireless charging, thereby the wireless charging between the realization terminal equipment also can adopt the wireless charging mode to be this terminal equipment charging simultaneously.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.

Claims (10)

1. a terminal equipment comprises battery, it is characterized in that, described terminal equipment also comprises solenoid, countdown circuit, receiving circuit and control switching circuit;
Described countdown circuit connects described solenoid respectively and described battery forms first branch road, offers described solenoid after being used for the direct current that described battery provides is converted to interchange, makes described solenoid be in emission state;
Described receiving circuit connects described battery respectively and described solenoid forms second branch road, is described battery charge after being used for changing the interchange that the electromotive force that described solenoid induction obtains provides into direct current;
Described control switching circuit connects described countdown circuit and described receiving circuit respectively, is used for the described countdown circuit of control and described receiving circuit conducting or disconnection.
2. terminal equipment as claimed in claim 1 is characterized in that, described control switching circuit is integrated in the ad hoc control chip, perhaps is integrated in the main control chip of described terminal equipment.
3. terminal equipment as claimed in claim 2 is characterized in that, described control chip or described main control chip are provided with the first control pin and connect described countdown circuit, is provided with the second control pin and connects described receiving circuit;
Described control chip or described main control chip are controlled described countdown circuit conducting or disconnection by the level of the described first control pin output;
Described control chip or described main control chip are controlled described receiving circuit conducting or disconnection by the level of the described second control pin output.
4. terminal equipment as claimed in claim 3 is characterized in that, described terminal equipment also comprises the control switch that is connected with described control chip or described main control chip;
When described control chip or the detection of described main control chip and definite described control switch are first state, control described countdown circuit conducting by the level of the described first control pin output;
When described control chip or the detection of described main control chip and definite described control switch are second state, control described receiving circuit conducting by the level of the described second control pin output;
When described control chip or the detection of described main control chip and definite described control switch are the third state, by the described first control pin and the described described countdown circuit of the second control valve foot control system and the disconnection of described receiving circuit.
5. as each described terminal equipment of claim 1 to 4, it is characterized in that described terminal equipment is portable terminal.
6. the method for wireless charging between a terminal equipment is characterized in that described method comprises:
First terminal equipment is during as charging device, and the direct current that first battery that first countdown circuit that comprises will connect provides is converted to first solenoid that offers connection after the interchange, makes described first solenoid be in emission state;
When the conduct of second terminal equipment is recharged equipment, the electromagnetic energy that second solenoid that comprises is responded to described first solenoid emission obtains electromotive force, and the interchange that described second solenoid that second receiving circuit that comprises will connect provides is second battery charge that connects after changing direct current into.
7. method as claimed in claim 6 is characterized in that, the direct current that first battery that first countdown circuit that first terminal equipment comprises will connect provides is converted to before the interchange, and described method also comprises:
Described first terminal equipment judges whether the dump energy of described first battery surpasses first setting threshold, and when surpassing first setting threshold, the direct current that first battery that first countdown circuit that control comprises will connect provides is converted to interchange.
8. as claim 6 or 7 described methods, it is characterized in that the direct current that first battery that first countdown circuit that described first terminal equipment comprises will connect provides is converted to before the interchange, described method also comprises:
Described first terminal equipment judges whether to receive the charging request that second terminal equipment sends, and when receiving the charging request of second terminal equipment transmission, the direct current that first battery that first countdown circuit that control comprises will connect provides is converted to interchange;
Described charging request is that described second terminal equipment sends when the electric weight of determining self-contained second battery is lower than second setting threshold.
9. as claim 6 or 7 described methods, it is characterized in that, the direct current that first battery that first countdown circuit that comprises will connect provides is converted to first solenoid that offers connection after the interchange, and described first solenoid is in after the emission state, and described method also comprises:
Described first terminal equipment, is controlled described first countdown circuit and is disconnected during less than the 3rd setting threshold every whether setting dump energy that duration judges described first battery less than the 3rd setting threshold.
10. method as claimed in claim 6, it is characterized in that, also comprise respectively first receiving circuit that is connected with described first battery with described first solenoid in described first terminal equipment, also comprise respectively second countdown circuit that is connected with described second battery with described second solenoid in described second terminal equipment;
Described second terminal equipment is during as charging device, and the direct current that second battery that second countdown circuit that comprises will connect provides is converted to second solenoid that offers connection after the interchange, makes described second solenoid be in emission state;
When described first terminal equipment conduct is recharged equipment, the electromagnetic energy that first solenoid that comprises is responded to described second solenoid emission obtains electromotive force, and the interchange that described first solenoid that first receiving circuit that comprises will connect provides is first battery charge that connects after changing direct current into.
CN2012100400306A 2012-02-20 2012-02-20 Terminal device and method for wireless charging between terminal devices Pending CN103259339A (en)

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Application publication date: 20130821