CN105674551A - Wirelessly-powered electric water heater and power supply and control method of wirelessly-powered electric water heater - Google Patents
Wirelessly-powered electric water heater and power supply and control method of wirelessly-powered electric water heater Download PDFInfo
- Publication number
- CN105674551A CN105674551A CN201610012507.8A CN201610012507A CN105674551A CN 105674551 A CN105674551 A CN 105674551A CN 201610012507 A CN201610012507 A CN 201610012507A CN 105674551 A CN105674551 A CN 105674551A
- Authority
- CN
- China
- Prior art keywords
- frequency
- power
- energy
- acceptance end
- current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/18—Water-storage heaters
- F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
- F24H1/201—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply
- F24H1/202—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply with resistances
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
- F24H9/2021—Storage heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H2250/00—Electrical heat generating means
- F24H2250/02—Resistances
Abstract
The invention discloses a wirelessly-powered electric water heater and a power supply and control method of the wirelessly-powered electric water heater. The wirelessly-powered electric water heater comprises an energy emitting end, an energy receiving end, a heating pipe, a detector and a processor, wherein the energy emitting device is connected with an alternating-current power source and used for converting the alternating-current power source into a high-frequency alternating-current power source and converting the high-frequency alternating-current power source into a high-frequency electromagnetic field; the energy receiving end is used for generating electric energy by means of the high-frequency electromagnetic field; the heating pipe is used for heating water in an inner container of the wirelessly-powered electric water heater by means of the electric energy generated by the energy receiving end; the detector is used for detecting the current of the high-frequency alternating-current power source; and the processor is used for judging a circuit fault of the energy receiving end according to the current. According to the wirelessly-powered electric water heater, the electricity utilization safety of the electric water heater can be further improved.
Description
Technical field
The present invention relates to household electrical appliance technical field, particularly to power supply and the control method of a kind of wireless power electric heater and wireless power electric heater.
Background technology
The universal comfortableness substantially increasing people's daily life of electric heater and convenience. At present, electric heater is electrically connected with city by cable mostly, to obtain required electric energy. But electric heater is generally used in the moist environment such as bathroom, and therefore cable and plug all can bring the danger such as electric leakage or short circuit. And in a humid environment, cable and plug are highly susceptible to corrosion, therefore further increase potential safety hazard.
Correlation technique proposes the wireless power method of electric heater, namely electric heater has supply side and power side, supply side and city are electrically connected, power side and storage and add the body of hot water and be connected, power side wirelessly obtains the energy of supply side, can be the water heating in body after energy is converted into electric energy. This avoids to a certain extent and exposes the potential safety hazard that cable brings.
But, owing to body and the power side of electric heater have electrical connection, and water is electrically conductive, when the circuit malfunctions of power side, still has the danger that water outlet place at electric heater is leaked electricity. Therefore, the electrical safety of electric heater needs to be improved further.
Summary of the invention
It is contemplated that one of technical problem solved at least to a certain extent in correlation technique. For this, it is an object of the present invention to propose a kind of wireless power electric heater, it is possible to improve the electrical safety of electric heater further.
Further object is that the power supply and control method that propose a kind of wireless power electric heater.
The wireless power electric heater of embodiment according to a first aspect of the present invention, including: energy transmitting terminal, described energy transmitting terminal is connected with alternating current power supply, for described alternating current power supply is converted to high-frequency ac power, and described high-frequency ac power is converted to electromagnetic field of high frequency;Energy acceptance end, described energy acceptance end is used for utilizing described electromagnetic field of high frequency to produce electric energy; Adding heat pipe, described heating pipe heats the water in described wireless power inner container of electric water heater for utilizing described electric energy produced by described energy acceptance end; Detector, described detector is for detecting the electric current of described high-frequency ac power; Processor, described processor for judging the fault of described energy acceptance end according to described electric current.
Wireless power electric heater according to embodiments of the present invention, energy acceptance end utilizes the electromagnetic field of energy transmitting terminal to produce electric energy, the electric energy that energy acceptance end produces is utilized to heat the water in wireless power inner container of electric water heater, the electric current of energy transmitting terminal high-frequency ac power can be detected simultaneously, and the fault of energy acceptance end can be judged according to the electric current of high-frequency ac power. Thus, the fault of energy acceptance end can be judged easily, so that taking corresponding safeguard procedures, compared with correlation technique, can not only avoid exposing the electric leakage hidden danger that cable brings by the mode of wireless power, also can effectively prevent from causing water outlet place to be leaked electricity because of the fault of energy acceptance end, further increase the electrical safety of electric heater.
It addition, wireless power electric heater according to the above embodiment of the present invention can also have following additional technical characteristic:
According to one embodiment of present invention, described energy transmitting terminal includes: an AC/DC changer, and a described AC/DC changer is connected with described alternating current power supply, for described alternating current power supply is converted to DC source; Wave filter, described wave filter is for removing the clutter in described DC source; Inverter, described inverter is for being converted to high-frequency ac power by the described DC source after removal clutter, and inputs described high-frequency ac power to transmitting coil; Described transmitting coil, described transmitting coil is for being converted to electromagnetic field of high frequency by the high-frequency ac power that described inverter inputs.
According to one embodiment of present invention, described energy acceptance end includes: receiving coil, and described receiving coil is used for utilizing described electromagnetic field of high frequency to produce induction electromotive force; 2nd AC/DC changer, described 2nd AC/DC changer, for the alternating current that described induction electromotive force produces is converted to unidirectional current, adds heat pipe described in feeding to.
Further, described energy transmitting terminal also includes the first compensation network, and described energy acceptance end also includes the second compensation network, and described first compensates network for, after the voltage and current of described high-frequency ac power is adjusted to same phase, inputting described transmitting coil; Described second voltage and current compensating the network alternating current for being produced by described induction electromotive force inputs described 2nd AC/DC changer after being adjusted to same phase.
According to one embodiment of present invention, described processor includes: computing unit, for calculating the average of the electric current of described high-frequency ac power within a cycle, judging unit and identifying unit, described judging unit judges that whether the average of described electric current is less than first threshold, when the average of described electric current is less than first threshold, described identifying unit judges that short circuit occurs in the circuit of described energy acceptance end, when the average of described electric current is not less than first threshold, described judging unit determines whether that whether the average of described electric current is more than Second Threshold, when the average of described electric current is more than Second Threshold, described identifying unit judges that open circuit occurs in the circuit of described energy acceptance end, wherein, described Second Threshold is much larger than described first threshold.
Further, after short circuit or open circuit occurs in the circuit judging described energy acceptance end, described processor is used for: controls described inverter and stops inputting described high-frequency ac power to described transmitting coil.
According to one embodiment of present invention, described energy acceptance end is installed in the body of described wireless power electric heater, and described energy transmitting terminal is independent of outside described body.
The power supply of the wireless power electric heater of embodiment and control method according to a second aspect of the present invention, described wireless power electric heater includes energy transmitting terminal and energy acceptance end, wherein, described energy transmitting terminal is connected with alternating current power supply, said method comprising the steps of: described alternating current power supply is converted to high-frequency ac power by described energy transmitting terminal, and described high-frequency ac power is converted to electromagnetic field of high frequency; Described energy acceptance end utilizes described electromagnetic field of high frequency to produce electric energy; Described electric energy is utilized to heat the water in described wireless power inner container of electric water heater; Detect the electric current of described high-frequency ac power, and judge the fault of described energy acceptance end according to described electric current.
The power supply of wireless power electric heater according to embodiments of the present invention and control method, energy acceptance end utilizes the electromagnetic field of energy transmitting terminal to produce electric energy, the electric energy that energy acceptance end produces is utilized to heat the water in wireless power inner container of electric water heater, the electric current of energy transmitting terminal high-frequency ac power can be detected simultaneously, and the fault of energy acceptance end can be judged according to the electric current of high-frequency ac power. Thus, the fault of energy acceptance end can be judged easily, so that taking corresponding safeguard procedures, compared with correlation technique, can not only avoid exposing the electric leakage hidden danger that cable brings by the mode of wireless power, also can effectively prevent from causing water outlet place to be leaked electricity because of the fault of energy acceptance end, further increase the electrical safety of electric heater.
It addition, the power supply of wireless power electric heater according to the above embodiment of the present invention and control method can also have following additional technical characteristic:
According to one embodiment of present invention, described alternating current power supply is converted to high-frequency ac power by described energy transmitting terminal, and described high-frequency ac power is converted to electromagnetic field of high frequency includes: described alternating current power supply is converted to DC source; Remove the clutter in described DC source, and the described DC source after removing clutter is converted to high-frequency ac power, and input described high-frequency ac power to transmitting coil; Described high-frequency ac power is converted to electromagnetic field of high frequency.
According to one embodiment of present invention, described energy acceptance end utilizes described electromagnetic field of high frequency generation electric energy to include: utilize described electromagnetic field of high frequency to produce induction electromotive force; The alternating current that described induction electromotive force produces is converted to unidirectional current.
Further, before inputting described high-frequency ac power to described transmitting coil, also include: the voltage and current of described high-frequency ac power is adjusted to same phase; Before the alternating current that described induction electromotive force produces is converted to unidirectional current, also include: the voltage and current of the alternating current produced by described induction electromotive force is adjusted to same phase.
According to one embodiment of present invention, described judge that the fault of described energy acceptance end includes according to described electric current: calculate the average of the electric current of described high-frequency ac power within a cycle; Judge that whether the average of described electric current is less than first threshold; If the average of described electric current is less than first threshold, then judging that short circuit occurs in the circuit of described energy acceptance end, otherwise, it is judged that whether the average of described electric current is more than Second Threshold, wherein, described Second Threshold is much larger than described first threshold; If the average of described electric current is more than Second Threshold, then judge that open circuit occurs in the circuit of described energy acceptance end.
Further, after short circuit or open circuit occurs in the circuit judging described energy acceptance end, also include: stop inputting described high-frequency ac power to described transmitting coil.
According to one embodiment of present invention, described energy acceptance end is installed in the body of described wireless power electric heater, and described energy transmitting terminal is independent of outside described body.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of wireless power electric heater according to an embodiment of the invention;
Fig. 2 is the structural representation of wireless power electric heater according to an embodiment of the invention;
Fig. 3 is the flow chart of the power supply of wireless power electric heater according to an embodiment of the invention and control method.
Detailed description of the invention
Being described below in detail embodiments of the invention, 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 same or like function from start to finish. The embodiment described below with reference to accompanying drawing is illustrative of, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
The wireless power electric heater of the embodiment of the present invention and the power supply of wireless power electric heater and control method are described below in conjunction with accompanying drawing.
Fig. 1 is the structured flowchart of wireless power electric heater according to an embodiment of the invention.
As it is shown in figure 1, the wireless power electric heater of the embodiment of the present invention, including: energy transmitting terminal 10, energy acceptance end 20, add heat pipe 30, detector 40 and processor 50.
Wherein, energy transmitting terminal 10 is connected with alternating current power supply, for alternating current power supply is converted to high-frequency ac power, and high-frequency alternating current unit is converted to electromagnetic field of high frequency.
Specifically, as in figure 2 it is shown, energy transmitting terminal 10 comprises the steps that an AC/DC changer 11, wave filter 12, inverter 13 and transmitting coil 14. Wherein, an AC/DC changer is connected with alternating current power supply, can be used for alternating current power supply is converted to DC source. In an embodiment of the present invention, alternating current power supply can be the civil power of 220V, and the frequency of civil power can be 50Hz. Wave filter 12 can be used for the clutter removing in DC source. Inverter 13 can be used for the DC source after by removal clutter and is converted to high-frequency ac power, and inputs high-frequency ac power to transmitting coil 14, and transmitting coil 14 is for being converted to electromagnetic field of high frequency by the high-frequency ac power that inverter 13 inputs. In an embodiment of the present invention, for reducing the harm that electromagnetic field environmental exposure is brought, the operating frequency of inverter 13 may be designed as 20kHz-100kHz.
Energy acceptance end 20 can include receiving coil 21 and the 2nd AC/DC changer 22. Wherein, receiving coil 21 is used for utilizing electromagnetic field of high frequency to produce induction electromotive force, and the 2nd AC/DC changer 22 is for being converted to unidirectional current by the alternating current that induction electromotive force produces, to feed to heating pipe 30.
As in figure 2 it is shown, in one embodiment of the invention, energy transmitting terminal 10 may also include the first compensation network 15, and energy acceptance end 20 may also include the second compensation network 23. First compensates after network 15 can be used for the voltage and current of high-frequency ac power is adjusted to same phase, inputs transmitting coil, thus active power and the energy conversion efficiency of energy transmitting terminal 10 can be improved. Second voltage and current compensating the alternating current that network 23 can be used for producing induction electromotive force inputs the 2nd AC/DC changer 22, thus active power and the energy conversion efficiency of energy acceptance end 20 can be improved after being adjusted to same phase.
Add heat pipe 30 to can be used for utilizing the water in electric energy heating wireless power inner container of electric water heater produced by energy acceptance end 20.
In one embodiment of the invention, energy acceptance end 10 is mountable in the body of wireless power electric heater, and energy transmitting terminal 20 can independent of outside body, and wherein, the body of wireless power electric heater includes the inner bag for water storage. Such as, as in figure 2 it is shown, the body of wireless power electric heater is mountable to outside metope, energy transmitting terminal 20 is mountable within body of wall. Thus, it may be achieved the electrical isolation of the power supply grid of wireless power electric heater body and civil power, it is possible to be prevented effectively from and expose the electric leakage hidden danger that cable brings.
In an embodiment of the present invention, detector 40 can be used for detecting the electric current of the alternating current power supply of high frequency, and processor 50 can be used for the electric current according to high-frequency ac power and judges the fault of energy acceptance end 20.
In the wireless power electric heater shown in Fig. 2, when wireless power electric heater starts, energy transmitting terminal 10 and energy acceptance end 20 can be in resonant condition, and the electric current of the alternating current power supply of high frequency is represented by:
In formula (1), UpinFor the voltage of high-frequency ac power, RpFor the internal resistance of transmitting coil, ω is resonant frequency, and M is the mutual inductance value of transmitting coil and receiving coil, RLFor adding the equivalent resistance of heat pipe. Wherein, Upin、Rp, ω and M can be definite value, therefore, the electric current I of the alternating current power supply of high frequencypThe equivalent resistance R adding heat pipe can be only dependent uponL. By formula (1) it can be seen that the electric current I of the alternating current power supply of high frequencypWith the equivalent resistance R adding heat pipeLIt is positively related. In one embodiment of the invention, if short circuit, then R occurs in the circuit of energy acceptance end 20LLess, correspondingly, IpAlso less; If there is open circuit in the circuit of energy acceptance end 20, then RLRelatively big, correspondingly, IpAlso bigger. Therefore, processor 50 can judge short circuit or the open circuit fault of energy acceptance end 20 according to the size of the electric current of high-frequency ac power.
In an embodiment of the present invention, processor 50 can include computing unit 51, judging unit 52 and identifying unit 53. Wherein, computing unit 51 is for calculating the average of the electric current a high frequency intra-cycle alternating current power supply. Judging unit 52 judges that whether the average of electric current is less than first threshold, when the average of electric current is less than first threshold, identifying unit 53 judges that short circuit occurs in the circuit of energy acceptance end 20, when the average of electric current is not less than first threshold, judging unit 52 can determine whether that whether the average of electric current is more than Second Threshold, when the average of electric current is more than Second Threshold, it is determined that unit 53 judges that open circuit occurs in the circuit of energy acceptance end. In an embodiment of the present invention, according to the relation shown in formula (1), in the ideal situation, I during short circuitp0 can be leveled off to, and I during open circuitpCan level off to Upin/Rp, therefore Second Threshold can be substantially larger than first threshold. First threshold and Second Threshold can be subject to the impact of energy transmitting terminal 10 and each element design parameter of energy acceptance end 20 etc., provide concrete numerical value in this inconvenience.
In one embodiment of the invention, processor 50, after short circuit or open circuit occurs in the circuit judging energy acceptance end 20, can control inverter 13 and stop inputting high-frequency ac power to transmitting coil 14, thus having cut off energy acceptance end 20 to the power supply adding heat pipe.
Wireless power electric heater according to embodiments of the present invention, energy acceptance end utilizes the electromagnetic field of energy transmitting terminal to produce electric energy, the electric energy that energy acceptance end produces is utilized to heat the water in wireless power inner container of electric water heater, the electric current of energy transmitting terminal high-frequency ac power can be detected simultaneously, and the fault of energy acceptance end can be judged according to the electric current of high-frequency ac power.Thus, the fault of energy acceptance end can be judged easily, so that taking corresponding safeguard procedures, compared with correlation technique, can not only avoid exposing the electric leakage hidden danger that cable brings by the mode of wireless power, also can effectively prevent from causing water outlet place to be leaked electricity because of the fault of energy acceptance end, further increase the electrical safety of electric heater.
The wireless power electric heater of corresponding above-described embodiment, the present invention also proposes power supply and the control method of a kind of wireless power electric heater.
Fig. 3 is the flow chart of the power supply of wireless power electric heater according to an embodiment of the invention and control method.
The wireless power electric heater of the embodiment of the present invention includes energy transmitting terminal and energy acceptance end, and wherein, energy transmitting terminal is connected with alternating current power supply. In one embodiment of the invention, energy acceptance end is mountable in the body of wireless power electric heater, and energy transmitting terminal can independent of outside body, and wherein, the body of wireless power electric heater includes the inner bag for water storage. Such as, the body of wireless power electric heater is mountable to outside metope, and energy transmitting terminal is mountable within body of wall. Thus, it may be achieved the electrical isolation of the power supply grid of wireless power electric heater body and civil power, it is possible to be prevented effectively from and expose the electric leakage hidden danger that cable brings.
As it is shown on figure 3, the power supply of the wireless power electric heater of the embodiment of the present invention and control method, comprise the following steps:
S301, alternating current power supply is converted to high-frequency ac power by energy transmitting terminal, and high-frequency ac power is converted to electromagnetic field of high frequency.
Specifically, alternating current power supply can be converted to DC source, remove the clutter in DC source, and the DC source after removing clutter is converted to high-frequency ac power, and input high-frequency ac power to transmitting coil, and high-frequency ac power is converted to electromagnetic field of high frequency. In one embodiment of the invention, before inputting high-frequency ac power to transmitting coil, also the voltage and current of high-frequency ac power can be adjusted to same phase, thus active power and the energy conversion efficiency of energy transmitting terminal can be improved. With reference to Fig. 2, said process can be realized by each device of the energy transmitting terminal shown in Fig. 2.
S302, energy acceptance end utilizes electromagnetic field of high frequency to produce electric energy.
Specifically, available electromagnetic field of high frequency produces induction electromotive force, and the alternating current that induction electromotive force produces is converted to unidirectional current. In one embodiment of the invention, before the alternating current that induction electromotive force produces is converted to unidirectional current, active power and the energy conversion efficiency of energy acceptance end also the voltage and current of the alternating current that induction electromotive force produces can be adjusted to same phase, thus can be improved. With reference to Fig. 2, said process can be realized by each device of the energy acceptance end shown in Fig. 2.
S303, utilizes the water in electric energy heating wireless power inner container of electric water heater.
S304, the electric current of detection high-frequency ac power, and the fault of energy acceptance end is judged according to electric current.
In the wireless power electric heater shown in Fig. 2, when wireless power electric heater starts, energy transmitting terminal and energy acceptance end can be in resonant condition, and the electric current of the alternating current power supply of high frequency is represented by:
In formula (1), UpinFor the voltage of high-frequency ac power, RpFor the internal resistance of transmitting coil, ω is resonant frequency, and M is the mutual inductance value of transmitting coil and receiving coil, RLFor adding the equivalent resistance of heat pipe.Wherein, Upin、Rp, ω and M can be definite value, therefore, the electric current I of the alternating current power supply of high frequencypThe equivalent resistance R adding heat pipe can be only dependent uponL. By formula (1) it can be seen that the electric current I of the alternating current power supply of high frequencypWith the equivalent resistance R adding heat pipeLIt is positively related. In one embodiment of the invention, if short circuit, then R occurs in the circuit of energy acceptance endLLess, correspondingly, IpAlso less; If there is open circuit in the circuit of energy acceptance end, then RLRelatively big, correspondingly, IpAlso bigger. Therefore, short circuit or the open circuit fault of energy acceptance end can be judged according to the size of the electric current of high-frequency ac power.
In one embodiment of the invention, the average of electric current a high frequency intra-cycle alternating current power supply can be calculated, and judge that whether the average of electric current is less than first threshold. If the average of electric current is less than first threshold, then judge that short circuit occurs in the circuit of energy acceptance end, otherwise, it is judged that whether the average of electric current is more than Second Threshold; If the average of electric current is more than Second Threshold, then judge that open circuit occurs in the circuit of energy acceptance end. In an embodiment of the present invention, according to the relation shown in formula (1), in the ideal situation, I during short circuitp0 can be leveled off to, and I during open circuitpCan level off to Upin/Rp, therefore Second Threshold can be substantially larger than first threshold. First threshold and Second Threshold can be subject to the impact of energy transmitting terminal and each element design parameter of energy acceptance end etc., provide concrete numerical value in this inconvenience.
In one embodiment of the invention, after short circuit or open circuit occurs in the circuit judging energy acceptance end, can stop inputting high-frequency ac power to transmitting coil, thus also having cut off the power supply of energy acceptance end.
The power supply of wireless power electric heater according to embodiments of the present invention and control method, energy acceptance end utilizes the electromagnetic field of energy transmitting terminal to produce electric energy, the electric energy that energy acceptance end produces is utilized to heat the water in wireless power inner container of electric water heater, the electric current of energy transmitting terminal high-frequency ac power can be detected simultaneously, and the fault of energy acceptance end can be judged according to the electric current of high-frequency ac power. Thus, the fault of energy acceptance end can be judged easily, so that taking corresponding safeguard procedures, compared with correlation technique, can not only avoid exposing the electric leakage hidden danger that cable brings by the mode of wireless power, also can effectively prevent from causing water outlet place to be leaked electricity because of the fault of energy acceptance end, further increase the electrical safety of electric heater.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " clockwise ", " counterclockwise ", " axially ", " radially ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not considered as limiting the invention.
Additionally, term " first ", " second " are only for descriptive purposes, and it is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic. Thus, define " first ", the feature of " second " can express or implicitly include one or more these features. In describing the invention, " multiple " are meant that two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or integral;Can be mechanically connected, it is also possible to be electrical connection; Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be connection or the interaction relationship of two elements of two element internals. For the ordinary skill in the art, it is possible to understand above-mentioned term concrete meaning in the present invention as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact. And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or be merely representative of fisrt feature level height higher than second feature. Fisrt feature second feature " under ", " lower section " and " below " can be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second feature.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example describe are contained at least one embodiment or the example of the present invention. In this manual, the schematic representation of above-mentioned term is necessarily directed to identical embodiment or example. And, the specific features of description, structure, material or feature can combine in one or more embodiments in office or example in an appropriate manner. Additionally, when not conflicting, the feature of the different embodiments described in this specification or example and different embodiment or example can be carried out combining and combining by those skilled in the art.
Although above it has been shown and described that embodiments of the invention, it is understandable that, above-described embodiment is illustrative of, it is impossible to be interpreted as limitation of the present invention, and above-described embodiment can be changed, revises, replace and modification by those of ordinary skill in the art within the scope of the invention.
Claims (14)
1. a wireless power electric heater, it is characterised in that including:
Energy transmitting terminal, described energy transmitting terminal is connected with alternating current power supply, for described alternating current power supply is converted to high-frequency ac power, and described high-frequency ac power is converted to electromagnetic field of high frequency;
Energy acceptance end, described energy acceptance end is used for utilizing described electromagnetic field of high frequency to produce electric energy;
Adding heat pipe, described heating pipe heats the water in described wireless power inner container of electric water heater for utilizing described electric energy produced by described energy acceptance end;
Detector, described detector is for detecting the electric current of described high-frequency ac power;
Processor, described processor for judging the fault of described energy acceptance end according to described electric current.
2. wireless power electric heater according to claim 1, it is characterised in that described energy transmitting terminal includes:
Oneth AC/DC changer, a described AC/DC changer is connected with described alternating current power supply, for described alternating current power supply is converted to DC source;
Wave filter, described wave filter is for removing the clutter in described DC source;
Inverter, described inverter is for being converted to high-frequency ac power by the described DC source after removal clutter, and inputs described high-frequency ac power to transmitting coil;
Described transmitting coil, described transmitting coil is for being converted to electromagnetic field of high frequency by the high-frequency ac power that described inverter inputs.
3. wireless power electric heater according to claim 2, it is characterised in that described energy acceptance end includes:
Receiving coil, described receiving coil is used for utilizing described electromagnetic field of high frequency to produce induction electromotive force;
2nd AC/DC changer, described 2nd AC/DC changer, for the alternating current that described induction electromotive force produces is converted to unidirectional current, adds heat pipe described in feeding to.
4. the wireless power electric heater according to Claims 2 or 3, it is characterized in that, described energy transmitting terminal also includes the first compensation network, described energy acceptance end also includes the second compensation network, described first compensates network for, after the voltage and current of described high-frequency ac power is adjusted to same phase, inputting described transmitting coil; Described second voltage and current compensating the network alternating current for being produced by described induction electromotive force inputs described 2nd AC/DC changer after being adjusted to same phase.
5. wireless power electric heater according to claim 1, it is characterised in that described processor includes:
Computing unit, for calculating the average of the electric current of described high-frequency ac power within a cycle;
Judging unit and identifying unit, described judging unit judges that whether the average of described electric current is less than first threshold, when the average of described electric current is less than first threshold, described identifying unit judges that short circuit occurs in the circuit of described energy acceptance end, when the average of described electric current is not less than first threshold, described judging unit determines whether that whether the average of described electric current is more than Second Threshold, when the average of described electric current is more than Second Threshold, described identifying unit judges that open circuit occurs in the circuit of described energy acceptance end, wherein, described Second Threshold is much larger than described first threshold.
6. the wireless power electric heater according to claim 2 or 5, it is characterised in that after short circuit or open circuit occurs in the circuit judging described energy acceptance end, described processor is used for:
Control described inverter to stop inputting described high-frequency ac power to described transmitting coil.
7. wireless power electric heater according to claim 1, it is characterised in that described energy acceptance end is installed in the body of described wireless power electric heater, and described energy transmitting terminal is independent of outside described body.
8. the power supply of a wireless power electric heater and control method, it is characterised in that described wireless power electric heater includes energy transmitting terminal and energy acceptance end, and wherein, described energy transmitting terminal is connected with alternating current power supply, said method comprising the steps of:
Described alternating current power supply is converted to high-frequency ac power by described energy transmitting terminal, and described high-frequency ac power is converted to electromagnetic field of high frequency;
Described energy acceptance end utilizes described electromagnetic field of high frequency to produce electric energy;
Described electric energy is utilized to heat the water in described wireless power inner container of electric water heater;
Detect the electric current of described high-frequency ac power, and judge the fault of described energy acceptance end according to described electric current.
9. the power supply of wireless power electric heater according to claim 8 and control method, it is characterised in that described alternating current power supply is converted to high-frequency ac power by described energy transmitting terminal, and described high-frequency ac power is converted to electromagnetic field of high frequency includes:
Described alternating current power supply is converted to DC source;
Remove the clutter in described DC source, and the described DC source after removing clutter is converted to high-frequency ac power, and input described high-frequency ac power to transmitting coil;
Described high-frequency ac power is converted to electromagnetic field of high frequency.
10. the power supply of wireless power electric heater according to claim 9 and control method, it is characterised in that described energy acceptance end utilizes described electromagnetic field of high frequency to produce electric energy to include:
Described electromagnetic field of high frequency is utilized to produce induction electromotive force;
The alternating current that described induction electromotive force produces is converted to unidirectional current.
11. the power supply of the wireless power electric heater according to claim 9 or 10 and control method, it is characterised in that
Before inputting described high-frequency ac power to described transmitting coil, also include: the voltage and current of described high-frequency ac power is adjusted to same phase;
Before the alternating current that described induction electromotive force produces is converted to unidirectional current, also include: the voltage and current of the alternating current produced by described induction electromotive force is adjusted to same phase.
12. the power supply of wireless power electric heater according to claim 8 and control method, it is characterised in that described judge that the fault of described energy acceptance end includes according to described electric current:
Calculate the average of the electric current of described high-frequency ac power within a cycle;
Judge that whether the average of described electric current is less than first threshold;
If the average of described electric current is less than first threshold, then judging that short circuit occurs in the circuit of described energy acceptance end, otherwise, it is judged that whether the average of described electric current is more than Second Threshold, wherein, described Second Threshold is much larger than described first threshold;
If the average of described electric current is more than Second Threshold, then judge that open circuit occurs in the circuit of described energy acceptance end.
13. the power supply of the wireless power electric heater according to claim 9 or 12 and control method, it is characterised in that after short circuit or open circuit occurs in the circuit judging described energy acceptance end, also include:
Stop inputting described high-frequency ac power to described transmitting coil.
14. the power supply of wireless power electric heater according to claim 8 and control method, it is characterised in that described energy acceptance end is installed in the body of described wireless power electric heater, and described energy transmitting terminal is independent of outside described body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610012507.8A CN105674551B (en) | 2016-01-05 | 2016-01-05 | The power supply and control method of wireless power electric heater and wireless power electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610012507.8A CN105674551B (en) | 2016-01-05 | 2016-01-05 | The power supply and control method of wireless power electric heater and wireless power electric heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105674551A true CN105674551A (en) | 2016-06-15 |
| CN105674551B CN105674551B (en) | 2018-12-21 |
Family
ID=56299712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610012507.8A Active CN105674551B (en) | 2016-01-05 | 2016-01-05 | The power supply and control method of wireless power electric heater and wireless power electric heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105674551B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106642279A (en) * | 2017-01-04 | 2017-05-10 | 中海阳能源集团股份有限公司 | Photovoltaic high-frequency wireless energy transfer heating and heat supplying system with heat storage |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102157987A (en) * | 2011-03-08 | 2011-08-17 | 韩丽 | Non-contact type high-power energy transmission system and application |
| CN103124099A (en) * | 2011-11-17 | 2013-05-29 | 建兴电子科技股份有限公司 | Wireless charging system and apparatus, and control method thereof |
| CN103166328A (en) * | 2011-12-19 | 2013-06-19 | Lg伊诺特有限公司 | Wireless power transmitter, wireless power receiver and wireless power transmission method |
| JP2015008549A (en) * | 2011-10-28 | 2015-01-15 | パナソニック株式会社 | Non-contact power transmission device |
| WO2015040649A1 (en) * | 2013-09-17 | 2015-03-26 | パナソニックＩｐマネジメント株式会社 | Wireless power transmission device |
-
2016
- 2016-01-05 CN CN201610012507.8A patent/CN105674551B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102157987A (en) * | 2011-03-08 | 2011-08-17 | 韩丽 | Non-contact type high-power energy transmission system and application |
| JP2015008549A (en) * | 2011-10-28 | 2015-01-15 | パナソニック株式会社 | Non-contact power transmission device |
| CN103124099A (en) * | 2011-11-17 | 2013-05-29 | 建兴电子科技股份有限公司 | Wireless charging system and apparatus, and control method thereof |
| CN103166328A (en) * | 2011-12-19 | 2013-06-19 | Lg伊诺特有限公司 | Wireless power transmitter, wireless power receiver and wireless power transmission method |
| WO2015040649A1 (en) * | 2013-09-17 | 2015-03-26 | パナソニックＩｐマネジメント株式会社 | Wireless power transmission device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106642279A (en) * | 2017-01-04 | 2017-05-10 | 中海阳能源集团股份有限公司 | Photovoltaic high-frequency wireless energy transfer heating and heat supplying system with heat storage |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105674551B (en) | 2018-12-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8466655B2 (en) | Charging system for vehicle | |
| US20140103711A1 (en) | Contactless power receiving device, vehicle equipped with the same, contactless power transmitting device, and contactless power transfer system | |
| JPWO2012073349A1 (en) | Non-contact power supply facility, vehicle, and control method for non-contact power supply system | |
| CN102474133A (en) | Power transmission device, wireless power supply system, and wireless power supply device | |
| US11670968B2 (en) | Fault detection and monitoring methods for safe operation of a WEVC system | |
| US11273722B2 (en) | Power conversion apparatus | |
| Wu et al. | A robust parity-time-symmetric WPT system with extended constant-power range for cordless kitchen appliances | |
| CN203537078U (en) | Lightning stroke monitoring device and high-voltage induction power taking system | |
| CN105832143A (en) | Electric kettle | |
| CN108933427B (en) | Electric water heater and protection device thereof | |
| CN204336656U (en) | Electric kettle | |
| CN105674551A (en) | Wirelessly-powered electric water heater and power supply and control method of wirelessly-powered electric water heater | |
| CN201786507U (en) | Induction type heating sleeve of filter | |
| CN109510286B (en) | Power supply device, power receiving device, and non-contact power transmission system | |
| JP6492552B2 (en) | Power control device, power control system, and power storage device | |
| CN104009554A (en) | Control method and system for electromagnetic device and electromagnetic device | |
| Judek et al. | Supply of electric vehicles via magnetically coupled air coils | |
| CN103746464B (en) | The wireless power control method of electric heater and electric heater | |
| Mohamed et al. | Predictive active power-flow control of two-way wireless power transfer system in V2G services | |
| CN113300601A (en) | Household appliance, power supply circuit thereof, control method of power supply circuit and storage medium | |
| JP5831304B2 (en) | Vehicle and vehicle control method | |
| CN103385305B (en) | A kind of slurrying control circuit of wireless soy bean milk making machine | |
| Morris | Design and testing of a bidirectional smart charger prototype | |
| CN206379747U (en) | A kind of non-contact power charging system | |
| CN215268075U (en) | Household electrical appliance and power supply circuit thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221103 Address after: 241000 west side of 3 / F, No.5 office building, new energy and new materials gathering area, Fuzhou Road, Jiangbei District, Wuhu City, Anhui Province Patentee after: Wuhu Midea intelligent kitchen electricity Manufacturing Co.,Ltd. Address before: 241009 Meimei Kitchen and Sanitary Industrial Park, Wanchun East Road, East District, Wuhu Economic and Technological Development Zone, Anhui Province Patentee before: WUHU MIDEA KITCHEN AND BATH APPLIANCES MFG. Co.,Ltd. Patentee before: MIDEA GROUP Co.,Ltd. |