CN104113143A - Wireless electric energy transmission system and control method thereof - Google Patents

Wireless electric energy transmission system and control method thereof Download PDF

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Publication number
CN104113143A
CN104113143A CN201310139676.4A CN201310139676A CN104113143A CN 104113143 A CN104113143 A CN 104113143A CN 201310139676 A CN201310139676 A CN 201310139676A CN 104113143 A CN104113143 A CN 104113143A
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China
Prior art keywords
radio energy
module
energy transmission
transmission system
control
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CN201310139676.4A
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Chinese (zh)
Inventor
毛宏建
肖桂良
林娜
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Midea Group Co Ltd
Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
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Midea Group Co Ltd
Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
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Priority to CN201310139676.4A priority Critical patent/CN104113143A/en
Publication of CN104113143A publication Critical patent/CN104113143A/en
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Abstract

The invention discloses a wireless electric energy transmission system. The wireless electric energy transmission system comprises the following components of: an external power supplying power source module which is used for converting alternating current to direct current; a wireless electric energy transmitting module which is connected with the external power supplying power source module and comprises a transmitting resonance unit and an electromagnetic induction heating unit, wherein the transmitting resonance unit is used for transmitting electromagnetic waves; and a control module which is connected with the wireless electric energy transmitting module and the external power supplying power source module respectively and is used for outputting control signals to control the transmitting resonance unit to transmit the electromagnetic waves and control the electromagnetic induction heating unit to perform heating work. The wireless electric energy transmission system can supply power for corresponding loads wirelessly, and can realize electromagnetic induction heating, and therefore, with the wireless electric energy transmission system adopted, functions of induction cooker products can be expanded, and conveniences can be brought to people. The invention also provides a control method of the wireless electric energy transmission system.

Description

Radio energy transmission system and control method thereof
Technical field
The present invention relates to electromagnetic wave wireless power technical field, particularly the control method of a kind of radio energy transmission system and a kind of radio energy transmission system.
Background technology
In prior art, adopt electromagnetic induction principle to carry out the technology that wireless power is comparative maturity, especially day by day universal in existing electromagnetic oven product.Wherein, in order to reduce the use of battery pack and charger, development comes induction type electrical installation to power with induction type electric supply installation gradually.That is to say, utilize the mode of electromagnetic induction to produce electric power, the induction type electrical installation that makes to be positioned on induction type power supplying device is subject to electricity operation.
Conventional is a kind of mode of induction charging plate of external power supply at present, electrical equipment to be charged is placed on induction charging plate and is charged, but this mode need to be purchased the various charging panels that match with load appliance specification in addition, and it is very inconvenient to use.
Summary of the invention
Object of the present invention is intended at least solve one of above-mentioned technological deficiency.
For this reason, the present invention need to propose a kind of radio energy transmission system, can be corresponding load wireless power supply, and self also can realize electromagnetic induction heating, has widened the function of electromagnetic oven product, offers convenience to people's life.
In addition the invention allows for, a kind of control method of radio energy transmission system.
For achieving the above object, the radio energy transmission system that an aspect of of the present present invention embodiment proposes, comprising: externally fed power module, for alternating current is converted to direct current; Radio energy transmitter module, described radio energy transmitter module is connected with described externally fed power module, and described radio energy transmitter module comprises transmitting resonant element and electromagnetic induction heating unit, and described transmitting resonant element is for emitting electromagnetic wave; Control module, described control module is connected with described externally fed power module with described radio energy transmitter module respectively, be used for exporting control signal and launch described electromagnetic wave to control described transmitting resonant element, and control described electromagnetic induction heating unit and carry out heating work.
According to the radio energy transmission system of the embodiment of the present invention, can be chosen as corresponding load and carry out wireless power, no longer need to purchase in addition the various charging panels that match with load appliance specification, simultaneously, self also can realize electromagnetic induction heating, thereby can expand the function of electromagnetic oven product, bring convenience to people's life.
Wherein, described radio energy transmission system comprises at least one load blocks, each load blocks in described at least one load blocks comprises that radio energy receives submodule, described radio energy receives submodule and described radio energy transmitter module matches and separate setting, described radio energy receives submodule and comprises reception resonant element, described reception resonant element is for receiving the described electromagnetic wave of described transmitting resonant element transmitting, and described radio energy reception submodule is converted into electric energy by described electromagnetic wave and thinks described load blocks power supply.
In one embodiment of the invention, described control module comprises: control unit, and described control unit is connected with described externally fed power module, for exporting control signal; Driver element, described driver element is connected with described control unit, for generating and drive signal according to described control signal; Switch element, described switch element is connected with described transmitting resonant element with described driver element respectively, and described switch element is launched resonant element described in described driving signal controlling.
Wherein, described switch element can be one or more the combination in IGBT, MOSFET, IEGT, GTR.
In one embodiment of the invention, described control module also comprises display unit, and described display unit is connected with described control unit.
Further, described transmitting resonant element comprises at least one harmonic oscillator unit.And while being multiple in described harmonic oscillator unit, multiple described harmonic oscillators unit is connected in series or connection parallel with one another mutually.
Particularly, described at least one harmonic oscillator unit comprises transmitting coil connected in series or in parallel and transmitting resonant capacitance.
In one embodiment of the invention, described radio energy transmission system also comprises: first detection module, described first detection module is connected with described control module, for described reception resonant element is detected to generate triggering signal after described reception resonant element being detected, and described triggering signal is sent to described control module so that radio energy transmitter module unlatching described in described control module control.
In another embodiment of the present invention, described radio energy transmission system also comprises: the second detection module, described the second detection module is connected with described at least one load blocks, for detection of the operating state of described at least one load blocks to generate work state information; The first wireless communication module, described the first wireless communication module is connected with described the second detection module, for described work state information being converted into wireless signal and sending; The second wireless communication module, described the second wireless communication module is connected with described control module, for receiving described wireless signal and generating described work state information, and described work state information is sent to described control module.
And described control module is adjusted the duty ratio of described control signal according to described work state information.
In one embodiment of the invention, described radio energy reception submodule also comprises the rectification stable pressuring unit being connected with described reception resonant element.
In addition, the present invention embodiment on the other hand has also proposed a kind of control method of radio energy transmission system, comprises the steps:
S1, civil power alternating current is converted to direct current by described externally fed power module, and described direct current is converted to the alternating current that high frequency changes by described control module control;
S2, selects the mode of operation of described radio energy transmission system, and wherein, described mode of operation comprises electromagnetic induction heating pattern and wireless power pattern;
S3, under described electromagnetic induction heating pattern, the alternating current that described high frequency changes is the power supply of described electromagnetic induction heating unit, described electromagnetic induction heating unit carries out heating work;
S4, under described wireless power pattern, the alternating current that described radio energy transmitter module changes described high frequency is converted to electromagnetic wave and launches.
According to the control method of the radio energy transmission system of the embodiment of the present invention, can select to enter corresponding mode of operation, under wireless power pattern, carry out wireless power for corresponding load, no longer need to purchase in addition the various charging panels that match with load appliance specification, simultaneously, under electromagnetic induction heating pattern, self also can realize electromagnetic induction heating, thereby can expand the function of electromagnetic oven product, brings convenience to people's life.
In one embodiment of the invention, after step S4, the control method of described radio energy transmission system also comprises: S5, described radio energy receives submodule and receives the described electromagnetic wave that described radio energy transmitter module is launched, and described radio energy reception submodule is converted into electric energy by described electromagnetic wave and thinks load blocks power supply, wherein, described radio energy reception submodule and described radio energy transmitter module match and separate setting.
Further, after step S5, the control method of described radio energy transmission system also comprises: S6, and the operating state that described the second detection module detects load blocks generates work state information; S7, described the first wireless communication module changes described work state information wireless signal into and sends; S8, described the second wireless communication module receives described wireless signal information, and generates described work state information, and this work state information is sent to described control module; S9, described control module is adjusted the duty ratio of control signal according to described work state information.
The aspect that the present invention is additional and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Brief description of the drawings
The present invention above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments obviously and easily and understand, wherein:
Fig. 1 is according to the block diagram of the radio energy transmission system of the embodiment of the present invention;
Fig. 2 is the structural representation of radio energy transmission system according to an embodiment of the invention;
Fig. 3 is the structural representation of radio energy transmission system in accordance with another embodiment of the present invention;
Fig. 4 is the functional-block diagram of electromagnetic heater in radio energy transmission system according to an embodiment of the invention;
Fig. 5 A and Fig. 5 B are the connecting circuit figure of harmonic oscillator unit;
Fig. 6 A and Fig. 6 B are the connecting circuit figure of transmitting resonant element; And
Fig. 7 is the control method flow chart of radio energy transmission system according to an embodiment of the invention;
Fig. 8 is the control method flow chart of radio energy transmission system in accordance with another embodiment of the present invention;
Fig. 9 is the control method flow chart of radio energy transmission system in accordance with another embodiment of the present invention.
Reference numeral:
Externally fed power module 10, radio energy transmitter module 20, control module 30 and at least one load blocks 40, AC power 201 and rectification filtering unit 202, transmitting resonant element 21, electromagnetic induction heating unit 22, radio energy receives submodule 41, receive resonant element 42, control unit 31, driver element 32 and switch element 33, display unit 34, first detection module 50, the second detection module 60, the first wireless communication module 70 and the second wireless communication module 80, load circuit 43, rectification stable pressuring unit 44, electromagnetic heater 100, rectification unit 401 and filter unit 402, choke L0 and the first capacitor C 0, transmitting coil L1, L2 and transmitting resonant capacitance C1, C2.
Embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Be exemplary below by the embodiment being described with reference to the drawings, only for explaining the present invention, and can not be interpreted as limitation of the present invention.
Disclosing below provides many different embodiment or example to be used for realizing different structure of the present invention.Of the present invention open in order to simplify, hereinafter the parts to specific examples and setting are described.Certainly, they are only example, and object does not lie in restriction the present invention.In addition, the present invention can be in different examples repeat reference numerals and/or letter.This repetition is in order to simplify and object clearly, itself do not indicate the relation between discussed various embodiment and/or setting.In addition, the various specific technique the invention provides and the example of material, but those of ordinary skill in the art can recognize the property of can be applicable to of other techniques and/or the use of other materials.In addition, First Characteristic described below Second Characteristic it " on " structure can comprise that the first and second Characteristics creations are the direct embodiment of contact, also can comprise the embodiment of other Characteristics creation between the first and second features, such the first and second features may not be direct contacts.
In description of the invention, it should be noted that, unless otherwise prescribed and limit, term " installation ", " being connected ", " connection " should be interpreted broadly, for example, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be to be directly connected, and also can indirectly be connected by intermediary, for the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term.
With reference to description and accompanying drawing below, these and other aspects of embodiments of the invention will be known.In these descriptions and accompanying drawing, specifically disclose some specific implementations in embodiments of the invention, represent some modes of the principle of implementing embodiments of the invention, but should be appreciated that the scope of embodiments of the invention is not limited.On the contrary, embodiments of the invention comprise all changes, amendment and the equivalent within the scope of spirit and the intension that falls into additional claims.
The radio energy transmission system proposing according to the embodiment of the present invention is described with reference to the accompanying drawings.
As shown in Figure 1, this radio energy transmission system comprises externally fed power module 10, radio energy transmitter module 20, control module 30.
Wherein, externally fed power module 10 is for being converted to direct current by alternating current.That is to say, as shown in Figure 2, externally fed power module 10 is cable power module, comprises AC power 201 and rectification filtering unit 202, i.e. speech, and AC power 201, by after rectification filtering unit 202 rectifying and wave-filterings, is converted to direct current and exports.Cable power module connects with wired mode and outside civil power, for this radio energy transmission system provides voltage.
As shown in Figure 1, radio energy transmitter module 20 is connected with externally fed power module 10, and radio energy transmitter module 20 comprises transmitting resonant element 21 and electromagnetic induction heating unit 22, and transmitting resonant element 21 is for emitting electromagnetic wave.Control module 30 is connected with externally fed power module 10 with radio energy transmitter module 20 respectively, carries out emitting electromagnetic wave, and control electromagnetic induction heating unit 22 and carry out heating work for exporting control signal to control transmitting resonant element 21.
That is to say, the radio energy transmission system of the embodiment of the present invention carries out emitting electromagnetic wave by transmitting resonant element 21, has the function of wireless power.Meanwhile, can also carry out heating work by electromagnetic induction heating unit 22.
In one embodiment of the invention, as shown in Figure 1, above-mentioned radio energy transmission system also comprises at least one load blocks 40.Each load blocks at least one load blocks 40 all can comprise that radio energy receives submodule 41, and radio energy receives, and submodule 41 matches with radio energy transmitter module 20 and separate nothing is connected setting.Wherein, radio energy receives submodule 41 and comprises and receive resonant element 42, receives resonant element 42 for receiving the electromagnetic wave launched of transmitting resonant element 21, and radio energy receives submodule 41 and electromagnetic wave is converted into electric energy thinks that load blocks 40 powers.
That is to say, in an embodiment of the present invention, radio energy receives electrical equipment that submodule 41 is arranged on required wireless power for example in electric agitating device, each radio energy receives submodule 41 and radio energy transmitter module 20 positions and mutually mates when close, there is electromagnetic induction in the two, receive in submodule 41 and produce induced current at radio energy, thereby be the load circuit power supply in electric heater unit, and radio energy transmitter module 20 is separate without being connected setting with radio energy reception submodule 41.
Further, in one embodiment of the invention, as shown in Figures 2 and 3, control module 30 comprises control unit 31, driver element 32 and switch element 33.Wherein, control unit 31 is connected with externally fed power module 10, for exporting control signal.Driver element 32 is connected with control unit 31, for generating and drive signal according to control signal, and switch element 33 is connected with transmitting resonant element 21 with driver element 32 respectively, the driving signal controlling transmitting resonant element 21 that switch element 33 is exported according to driver element 32.In an example of the present invention, control unit 31 can be MCU(Micro Controller Unit, micro-control unit).
Wherein, switch element 33 is IGBT(Insulated Gate Bipolar Transistor, insulated gate bipolar transistor), MOSFET(Metal-Oxide-Semiconductor Field-Effect Transistor, metal-oxide layer-semiconductor-field-effect transistor), IEGT(Injection Enhanced Gate Transistor, electron injection enhancement gate transistor), GTR(Giant Transistor, power transistor) in one or more combination.That is to say, switch element 33 can be by n(n >=1) individual power semiconductor forms, and power semiconductor can be the power model that IGBT, MOSFET, IEGT, GTR or its connection in series-parallel are combined to form.
Preferably, in one embodiment of the invention, in the time that switch element 33 is IGBT, because IGBT is compound full-control type voltage driven type power semiconductor, therefore have the advantage of high input impedance and low conduction voltage drop two aspects concurrently.Control unit 31 outputs control signals to driver element 32, and driver element 32 generates and drives signal according to control signal, then controls transmitting resonant element 21 by IGBT and works.
In one embodiment of the invention, as shown in Figures 2 and 3, control module 30 also comprises display unit 34, and display unit 34 is connected with control unit 31, and display unit is for human-computer interactive control.
In one embodiment of the invention, transmitting resonant element 21 comprises at least one harmonic oscillator unit (not shown).And while being multiple in harmonic oscillator unit, multiple harmonic oscillators unit can be to be mutually connected in series, or connection parallel with one another.Particularly, at least one harmonic oscillator unit comprises transmitting coil connected in series or in parallel and transmitting resonant capacitance.
Particularly, the connecting circuit of harmonic oscillator unit is as shown in Fig. 5 A and Fig. 5 B, and harmonic oscillator unit can be to be composed in parallel by a transmitting coil L1 and a transmitting resonant capacitance C1, as shown in Figure 5A.Or harmonic oscillator unit can be to be composed in parallel by a transmitting coil L1 and two transmitting resonant capacitance C1, C2, as shown in Figure 5 B.
As shown in Figure 6A, transmitting resonant element 21 can be multiple harmonic oscillator units in series compositions.As shown in Figure 6B, transmitting resonant element 21 can compose in parallel for multiple harmonic oscillators unit.
Similarly, in an embodiment of the present invention, receive the reception harmonic oscillator unit that resonant element 42 also can comprise multiple mutual series connection or connection parallel with one another, and reception harmonic oscillator unit equally also can comprise receiving coil connected in series or in parallel and receive storage capacitor.
Certainly in an example of the present invention, no matter be transmitting resonant element 21 or reception resonant element 42, can also be the oscillating circuit that an inductance and multiple Capacitance parallel connection form.And this radio energy transmission system also can arrange multiple transmitting resonant elements 21, can be multiple electric power supplies simultaneously.
In one embodiment of the invention, as shown in Figure 2, this radio energy transmission system also comprises first detection module 50.Wherein, first detection module 50 is connected with control module 30, for detecting to generate triggering signal detecting to receive after resonant element 42 to receiving resonant element 42, and triggering signal is sent to control module 30 so that control module 30 is controlled radio energy transmitter module 20 opens.For example, first detection module 50 can be load detecting module, and this load detecting module is arranged on radio energy transmitter module 20 one end, is directly electrically connected with MCU, sends state information to MCU.Wherein, this load detecting module can be a low power resonance coil, receives the state information of resonant element 42 for perception.And this resonance coil continues outwards to send electromagnetic wave, whether exist for detection of receiving resonant element 42, if while there is suitable reception resonant element 42, send triggering signal to MCU, MCU starts and controls transmission resonant element 21 and start working.
In another embodiment of the present invention, as shown in Figure 3, this radio energy transmission system also comprises the second detection module 60, the first wireless communication module 70 and the second wireless communication module 80.Wherein, the second detection module 60 is connected with at least one load blocks 40, for detection of the operating state of at least one load blocks 40 to generate work state information.The first wireless communication module 70 is connected with the second detection module 60, for work state information being converted into wireless signal and sending.The second wireless communication module 80 is connected with control module 30, and mutually carry out radio communication between the second wireless communication module 80 and the first wireless communication module 70, the second wireless communication module 80 is for receiving wireless signal and generating work state information, and work state information is sent to control module 30.
Wherein, work state information can comprise the information such as power and operation irregularity situation that receives position that whether resonant element 42 existed, received resonant element 42 and whether place correctly, receive resonant element 42.If above information is all errorless, send power supply signal to control module 30, control radio energy transmitter module 20 and normally work, otherwise radio energy transmitter module 20 is not worked.
In one embodiment of the invention, control module 30 is adjusted the duty ratio of control signal according to work state information.I.e. speech, the control unit 31 in control module 30 is according to the power output of the work state information control transmitting resonant element 21 of at least one load blocks 40.
That is to say, in the present embodiment, the electric power that the second detection module 60 is required for detection of the operating state of load circuit 43 at least one load blocks 40 and when detecting this load circuit 43 and starting, this load information sends to the second wireless communication module 80 by the first wireless communication module 70 with communication, the second wireless communication module 80 sends it to the control unit 31 in control module 30, control unit 31 and then control driver element 32, regulate the suitable power of 21 outputs of transmitting resonant element and load circuit 43.
In one embodiment of the invention, as shown in Figures 2 and 3, radio energy receives submodule 41 and also comprises the rectification stable pressuring unit 44 being connected with reception resonant element 42.This rectification stable pressuring unit 44 accesses load circuit 43, for load circuit 43 is powered.
Particularly, in one embodiment of the invention, as shown in Figure 4, externally fed power module 10, radio energy transmitter module 20 and control module 30, and radio energy transmitter module 20 comprises that electromagnetic induction heating unit 22(is not shown), in the time selecting electromagnetic induction heating pattern, form electromagnetic heater 100.The principle of this electromagnetic heater 100 is as follows:
AC power 201 is after rectification unit 401 rectifications in rectification filtering unit 202, be converted to direct current, direct current carries out smothing filtering by the filter unit 402 in rectification filtering unit 202, after the smothing filtering by choke L0 and capacitor C 0, relative direct current is stably fed to the electromagnetic induction heating unit 22 in radio energy transmitter module 20, wherein, transmitting coil L2 in transmitting resonant element 21 and transmitting resonant capacitance C2 composition L2, C2 oscillation circuit, thus on transmitting coil L2, produce alternating magnetic field.
In the present embodiment, switch element 33 adopts IGBT, and IGBT has three electrodes, is called grid G, collector electrode C and emitter E.In the time that the C of IGBT pole tension is 0V, IGBT conducting, transmitting coil L2 now carries out energy storage, when IGBT is by being conducting to when cut-off, now due to the effect of transmitting coil L2, electric current also can flow along previous direction, because IGBT turn-offs, transmitting coil L2 can only charge to transmitting resonant capacitance C2, thereby causes that C pole tension raises, diminish with charging current until be 1 o'clock, C pole tension is the highest.From this time, transmitting resonant capacitance C2 starts the electric discharge through transmitting coil L2, now C pole tension step-down, and in the time that C pole tension reduces to 0V, control unit 31 will detect this numerical value, now IGBT opens again, thereby forms vibration.
In the present embodiment, transmitting coil L2 and transmitting resonant capacitance C2 form transmitting resonant element 21, form the magnetic field that high frequency changes, when have the resonant element 42 of reception with its near time, due to electromagnetic induction effect, can be receiving generation current in resonant element 42, thus power for the load circuit 43 at least one load blocks 40.
Electromagnetic induction heater 100 in the embodiment of the present invention, can be applied to as the household electrical appliance such as electromagnetic oven, electromagnetic stove, make it as a wireless power supplier, for the such as electric power supply such as soy bean milk making machine, mixer in kitchen appliance of load blocks, thereby expanded the function of electromagnetic oven product, make it to become one can wireless power household electrical source platform.
According to the radio energy transmission system of the embodiment of the present invention, can be chosen as corresponding load blocks and carry out wireless power, no longer need to purchase in addition the various charging panels that match with load appliance specification, simultaneously, self also can realize electromagnetic induction heating, thereby can expand the function of electromagnetic oven product, bring convenience to people's life.
Fig. 7 is the flow chart of the control method of the radio energy transmission system of one embodiment of the invention.
As shown in Figure 7, the control method of this radio energy transmission system comprises the steps:
S1, civil power alternating current is converted to direct current by externally fed power module, and direct current is converted to the alternating current that high frequency changes by control module control.
S2, the mode of operation of selection radio energy transmission system, wherein, mode of operation comprises electromagnetic induction heating pattern and wireless power pattern.
S3, under electromagnetic induction heating pattern, the alternating current that high frequency changes is the power supply of electromagnetic induction heating unit, electromagnetic induction heating unit carries out heating work.
S4, under wireless power pattern, the alternating current that radio energy transmitter module changes high frequency is converted to electromagnetic wave and launches.
In this embodiment, the mode of operation that radio energy transmission system is selected according to user, the outside emitting electromagnetic wave of continuation, load blocks can be placed on the position near radio energy transmitter module, and just can receive electromagnetic wave is load circuit power supply.But this mode is comparatively simple, and load circuit is not detected, the transmission electromagnetic wave of continuation, is unfavorable for energy-conservation.
Wherein, as shown in Figure 8, in a preferred embodiment of the invention, increase by one and trigger step, under wireless power pattern, above-mentioned steps S4 comprises:
S41, described first detection module detects described reception resonant element, and in step S410, judge whether to exist mate described reception resonant element.If so, enter step S411, detect that, while receiving resonant element, first detection module generates triggering signal and is sent to described control module, then enters next step S42; If not, return to step S41, continue to detect.
S42, described control module receives triggering signal, opens described radio energy transmitter module;
S43, the alternating current that described radio energy transmitter module changes described high frequency is converted to electromagnetic wave and launches.
In this embodiment, have first detection module to detect receiving resonant element, this process can make the radio energy transmission system electric energy that cuts the waste.
And in one embodiment of the invention, after step S4, the control method of this radio energy transmission system also comprises the steps:
S5, radio energy receives submodule and receives the electromagnetic wave that radio energy transmitter module is launched, and radio energy reception submodule is converted into electric energy by electromagnetic wave and thinks load blocks power supply, and wherein, radio energy receives submodule and radio energy transmitter module matches and separate setting.
As shown in Figure 9, in another preferred embodiment of the present invention, radio energy transmission system comprises the first wireless communication module and the second wireless communication module and first detection module and the second detection module, the detection of load condition is carried out to instant messaging and feedback, also after step S5, also comprises:
S6, the operating state that the second detection module detects load blocks generates work state information;
S7, the first wireless communication module changes described work state information wireless signal into and sends;
S8, the second wireless communication module receives described wireless signal information, and generates described work state information, and this work state information is sent to described control module;
S9, described control module is adjusted the duty ratio of control signal according to described work state information.
According to the control method of the radio energy transmission system of the embodiment of the present invention, can select to enter corresponding mode of operation, under wireless power pattern, carry out wireless power for corresponding load, no longer need to purchase in addition the various charging panels that match with load appliance specification, simultaneously, under electromagnetic induction heating pattern, self also can realize electromagnetic induction heating, thereby can expand the function of electromagnetic oven product, brings convenience to people's life.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And specific features, structure, material or the feature of description can be with suitable mode combination in any one or more embodiment or example.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, amendment, replacement and modification to these embodiment, scope of the present invention is by claims and be equal to and limit.

Claims (16)

1. a radio energy transmission system, is characterized in that, comprising:
Externally fed power module, for being converted to direct current by alternating current;
Radio energy transmitter module, described radio energy transmitter module is connected with described externally fed power module, and described radio energy transmitter module comprises transmitting resonant element and electromagnetic induction heating unit, and described transmitting resonant element is for emitting electromagnetic wave;
Control module, described control module is connected with described externally fed power module with described radio energy transmitter module respectively, be used for exporting control signal and launch described electromagnetic wave to control described transmitting resonant element, and control described electromagnetic induction heating unit and carry out heating work.
2. radio energy transmission system as claimed in claim 1, is characterized in that, described control module comprises:
Control unit, described control unit is connected with described externally fed power module, for exporting control signal;
Driver element, described driver element is connected with described control unit, for generating and drive signal according to described control signal;
Switch element, described switch element is connected with described transmitting resonant element with described driver element respectively, and described switch element is launched resonant element described in described driving signal controlling.
3. radio energy transmission system as claimed in claim 1, it is characterized in that, described radio energy transmission system comprises at least one load blocks, each load blocks in described at least one load blocks comprises that radio energy receives submodule, described radio energy receives submodule and described radio energy transmitter module matches and separate setting, described radio energy receives submodule and comprises reception resonant element, described reception resonant element is for receiving the described electromagnetic wave of described transmitting resonant element transmitting, described radio energy reception submodule is converted into electric energy by described electromagnetic wave and thinks described load blocks power supply.
4. radio energy transmission system as claimed in claim 2, is characterized in that, described switch element is one or more the combination in IGBT, MOSFET, IEGT, GTR.
5. radio energy transmission system as claimed in claim 2, is characterized in that, described control module also comprises display unit, and described display unit is connected with described control unit.
6. radio energy transmission system as claimed in claim 1, is characterized in that, described transmitting resonant element and electromagnetic induction heating unit comprise respectively at least one harmonic oscillator unit.
7. radio energy transmission system as claimed in claim 6, is characterized in that, described harmonic oscillator unit is multiple, and multiple described harmonic oscillators unit is connected in series or connection parallel with one another mutually.
8. radio energy transmission system as claimed in claim 6, is characterized in that, described at least one harmonic oscillator unit comprises transmitting coil connected in series or in parallel and transmitting resonant capacitance.
9. radio energy transmission system as claimed in claim 3, is characterized in that, also comprises:
First detection module, described first detection module is connected with described control module, for described reception resonant element is detected to generate triggering signal after described reception resonant element being detected, and described triggering signal is sent to described control module so that radio energy transmitter module unlatching described in described control module control.
10. radio energy transmission system as claimed in claim 3, is characterized in that, also comprises:
The second detection module, described the second detection module is connected with described at least one load blocks, for detection of the operating state of described at least one load blocks to generate work state information;
The first wireless communication module, described the first wireless communication module is connected with described the second detection module, for described work state information being changed into wireless signal and sending;
The second wireless communication module, described the second wireless communication module is connected with described control module, for receiving described wireless signal and generating described work state information, and described work state information is sent to described control module.
11. radio energy transmission systems as claimed in claim 10, is characterized in that, described control module is adjusted the duty ratio of described control signal according to described work state information.
12. radio energy transmission systems as claimed in claim 3, is characterized in that, described radio energy receives submodule and also comprises the rectification stable pressuring unit being connected with described reception resonant element.
The control method of 13. 1 kinds of radio energy transmission systems as described in claim 1-12 any one, is characterized in that, comprises the steps:
S1, civil power alternating current is converted to direct current by described externally fed power module, and described direct current is converted to the alternating current that high frequency changes by described control module control;
S2, selects the mode of operation of described radio energy transmission system, and wherein, described mode of operation comprises electromagnetic induction heating pattern and wireless power pattern;
S3, under described electromagnetic induction heating pattern, the alternating current that described high frequency changes is the power supply of described electromagnetic induction heating unit, described electromagnetic induction heating unit carries out heating work;
S4, under described wireless power pattern, the alternating current that described radio energy transmitter module changes described high frequency is converted to electromagnetic wave and launches.
The control method of 14. radio energy transmission systems as claimed in claim 13, is characterized in that, described step S4 comprises:
S41, whether described first detection module detects described reception resonant element and exists, and in the time reception resonant element being detected, generates triggering signal and is also sent to described control module;
S42, described control module receives triggering signal, and opens described radio energy transmitter module;
S43, the alternating current that described radio energy transmitter module changes described high frequency is converted to electromagnetic wave and launches.
The control method of 15. radio energy transmission systems as claimed in claim 13, is characterized in that, after step S4, also comprises:
S5, described radio energy receives submodule and receives the described electromagnetic wave that described radio energy transmitter module is launched, and described radio energy reception submodule is converted into electric energy by described electromagnetic wave and thinks load blocks power supply, wherein, described radio energy reception submodule and described radio energy transmitter module match and separate setting.
The control method of 16. radio energy transmission systems as claimed in claim 15, is characterized in that, after step S5, also comprises:
S6, the operating state that described the second detection module detects load blocks generates work state information;
S7, described the first wireless communication module changes described work state information wireless signal into and sends;
S8, described the second wireless communication module receives described wireless signal information, and generates described work state information, and this work state information is sent to described control module;
S9, described control module is adjusted the duty ratio of control signal according to described work state information.
CN201310139676.4A 2013-04-19 2013-04-19 Wireless electric energy transmission system and control method thereof Pending CN104113143A (en)

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