CN201788431U - Control circuit of electric water heater with changeable rated power - Google Patents
Control circuit of electric water heater with changeable rated power Download PDFInfo
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- CN201788431U CN201788431U CN2010205218715U CN201020521871U CN201788431U CN 201788431 U CN201788431 U CN 201788431U CN 2010205218715 U CN2010205218715 U CN 2010205218715U CN 201020521871 U CN201020521871 U CN 201020521871U CN 201788431 U CN201788431 U CN 201788431U
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Abstract
The utility model provides a control circuit of an electric water heater with changeable rated power, which comprises a heating circuit, a main control circuit and a first input circuit. The control circuit is characterized by further comprising a second input circuit which is used for limiting the maximum power value after a heating resistor is assembled, and the main control circuit further comprises a second signal input end, wherein the second signal input end comprises a control switch which can generate a high level signal or a low level signal respectively, and the output end of the second input circuit is connected with the second signal input end of the main control circuit. Compared with the prior art, the control circuit is additionally provided with the second input circuit of the control switch which can transmit two different signals of the high level signal and the low level signal, the second input circuit and the first input circuit jointly act on the main control circuit to control a relay to work, the control switch can be selected by a user to transmit the high level signal or the low level signal as required, and the main control circuit sets the rated power of the electric water heater according to the level signal transmitted by the second input circuit, so that the electric water heater can work with the proper rated power according to the practical installation environment when the electric water heater is installed.
Description
Technical field
The utility model relates to a kind of electric heater control circuit, the electric heater control circuit that particularly a kind of rated power can change.
Background technology
Traditional storage-type electric water heater has all indicated rated power and rated current usually on the nameplate of product, in order to satisfy user's different user demands, electric heater also is provided with many retaining power selection, and the user can select suitable mode of operation according to actual needs.
Though existing electric heater has many retaining power selection, but the rated power of electric heater often has only one, generally when product export, determined and can't change, the ordinary family user is when choosing electric heater, can only select the suitable a product of power utilization environment of rated power size and current family to install, higher as installation environment configuration at the beginning, the user has selected the bigger a electric heater of rated power to install, but, if because removal of home or family how have acquired several high-power machines reduced later on configuration be installed, at this moment, the configuration surroundings of user installation wiring may just can't reach the mounting condition of high-power electric appliance, cause the bigger electric heater of original rated power under the installation environment of low configuration, normally to use, have only the less electric heater of the rated power of replacing to be suitable for.So, just make the user very high to the configuration requirement of installation environment when finishing, but also to anticipate the development trend of other electrical equipment of acquiring from now on, in case configuration surroundings reduces, electric heater or other household electrical appliances of original big rated power of buying just possibly can't normally use, and bring very big inconvenience to the user.
Summary of the invention
Technical problem to be solved in the utility model be provide at above-mentioned prior art present situation a kind of can be according to the electric heater control circuit of actual installation environment change rated power.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: the changeable electric heater control circuit of this rated power includes
Heater circuit is made up of a plurality of heating resistors that are arranged in parallel and the relay that is serially connected in each described heating resistor loop;
Governor circuit is controlled the switching of each described relay, and this governor circuit includes first signal input part and output terminal, and the coil of each described relay links to each other with the output terminal of described governor circuit;
First input circuit, be used to set the array mode of described heating resistor, the input signal of this first input circuit is taken from the button on the described operation of electric water heater panel, and first signal input part of the output terminal of this first input circuit and described governor circuit links to each other;
It is characterized in that: described control circuit also includes second input circuit that is used to limit the maximum power value after described heating resistor makes up, described governor circuit also includes the secondary signal input end, wherein, described second input circuit has the gauge tap that can produce high level or low level signal respectively, and the secondary signal input end of the output terminal of described second input circuit and described governor circuit links to each other.
In order to change the rated power of electric heater, as preferably, described second input circuit includes resistance, electric capacity and as the toggle switch of described gauge tap, wherein, described toggle switch is the two retaining toggle switchs that include first gear and second gear, an end ground connection of this toggle switch, the other end of this toggle switch divides three the tunnel, one the tunnel links to each other with second input end of described governor circuit, and the second the tunnel through described capacity earth, and Third Road connects+the 5V positive source through described resistance.So, toggle switch can produce different level signals when toggling it to first gear with second gear, governor circuit can be set the electric heater rated power of two kinds of different values according to different level signals, thereby make the rated power of electric heater have two kinds of selections, when being necessary by stirring the rated power that toggle switch can change electric heater.
For guaranteeing the operate as normal of toggle switch, preferred as another, described second input circuit includes the 4th resistance, the 5th resistance and as the toggle switch of described gauge tap, wherein, described toggle switch is the two retaining toggle switchs that include first gear and second gear, one end ground connection of this toggle switch, the other end of this toggle switch divides two-way through described the 4th resistance, one the tunnel directly links to each other with second input end of described governor circuit, and the second the tunnel through described the 5th resistance connection+5V positive source.At toggle switch one end the combination of resistance or resistance capacitance is set, when making the gear of toggle switch change, output level can change, and reaches the purpose that changes rated power.
As further preferred, described second input circuit includes resistance, electric capacity and as the electric connector of described gauge tap, wherein, described electric connector is made up of plug-in unit and fitting, described fitting ground connection, described plug-in unit one tunnel is direct to link to each other with second input end of described governor circuit, and the second the tunnel through described capacity earth, and Third Road connects+the 5V positive source through described resistance.When the plug-in unit of electric connector and fitting unite two into one, circuit turn-on, when the plug-in unit of electric connector separates with fitting, circuit disconnects, so, can produce different level signals according to circuit turn-on with disconnecting, make electric connector have the effect same with toggle switch, governor circuit is according to the current power-handling capability of different level signal qualification electric heaters, and the user selects heating mode in any case, and the heating power of electric heater all can only be in the rated power scope.
As preferably, described second input circuit includes the 4th resistance, the 5th resistance and as the electric connector of described gauge tap, wherein, described electric connector is made up of plug-in unit and fitting, described fitting ground connection, described plug-in unit divides two-way through described the 4th resistance, and one the tunnel directly links to each other with second input end of described governor circuit, and the second the tunnel through described the 5th resistance connection+5V positive source.
The heater circuit of electric heater can adopt various circuit of the prior art to realize, as preferably, described heater circuit includes first resistance, second resistance, the 3rd resistance, first relay, second relay, the 3rd relay and the 4th relay, wherein, described first relay, the contact of second relay and the 3rd relay is respectively moving together contact, the contact of described the 4th relay is for including moving contact, the transfer contact of first stationary contact and second stationary contact, described first relay, second relay, the coil of the 3rd relay and the 4th relay links to each other with the output terminal of described governor circuit respectively; One end of described first relay contact links to each other with the civil power zero line, the other end of this first relay contact is divided into three the tunnel, the first via links to each other through first stationary contact of described first resistance and described the 4th relay, the second tunnel end through described second resistance and described the 3rd relay contact links to each other, Third Road links to each other through second stationary contact of described the 3rd resistance and described the 4th relay, contact one end of the moving contact of described the 4th relay and described second relay links to each other, the other end of this second relay contact links to each other with the civil power live wire, and the other end of described the 3rd relay contact connects described civil power live wire.
Governor circuit also can adopt various circuit of the prior art to realize, as preferably, described governor circuit includes the single-chip microcomputer that model is S3F9488, is serially connected with the driving circuit that drives described relay work between described single-chip microcomputer and the described relay.Because the output pin of single-chip microcomputer can not directly connect relay coil, in order to guarantee the operate as normal of relay, must between relay and single-chip microcomputer, driving circuit be set, driving circuit is a prior art, the circuit of realizing the relay driving is varied, can adopt various circuit of the prior art to realize.
Compared with prior art, advantage of the present utility model is: set up second input circuit, second input circuit and the first input circuit acting in conjunction are in governor circuit, and then the work of pilot relay, this second input circuit has the gauge tap that can send high level and two kinds of unlike signals of low level, can select gauge tap to send high level or low level signal according to user's needs, governor circuit is determined the power-handling capabilities of two kinds of different sizes of electric heater according to two kinds of signals of the gauge tap transmission of second input circuit, make more than one of the rated power of electric heater, electric heater when mounted can be according to the suitable nominal operation of actual installation environmental selection, when installation environment changes, by can change the rated power of electric heater to the operation of gauge tap, guarantee the operate as normal of electric heater, can make same electric heater both satisfy the user's request of high configuration installation environment, also can satisfy the user's request of low configuration installation environment, make that the installation of product is more flexible, applicability is stronger.
Description of drawings
Fig. 1 is the control circuit schematic diagram of the utility model embodiment one.
Fig. 2 is the control circuit schematic diagram of the utility model embodiment two.
Fig. 3 is the control circuit schematic diagram of the utility model embodiment three.
Fig. 4 is the control circuit schematic diagram of the utility model embodiment four.
Fig. 5 is the operation of electric water heater panel button synoptic diagram of the utility model embodiment.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Embodiment one, as shown in Figure 1:
The electric heater control circuit of present embodiment includes heater circuit 1, governor circuit 2, first input circuit 3 and second input circuit 4, wherein, heater circuit 1 is made up of a plurality of heating resistors that are arranged in parallel and the relay that is serially connected in each heating resistor loop; Governor circuit 2 is used to control the switching of each relay; this governor circuit 2 is that the single-chip microcomputer 21 of S3F9488 is a core with Samsung's model; single-chip microcomputer 21 includes two input ends respectively as first signal input part 211 and the secondary signal input end 212 of governor circuit 2; and; first signal input part 211 of the output terminal of first input circuit 3 and governor circuit 2 links to each other; the secondary signal input end 212 of the output terminal of second input circuit 4 and governor circuit 2 links to each other; because relay can not be directly connected on the pin of single-chip microcomputer 21 usually; the driving circuit 22 of driving relay work also need be set respectively between single-chip microcomputer 21 and each relay; driving circuit 22 can adopt various circuit structure of the prior art; it or not the claimed content of this patent; do not do detailed description at this; the input end of driving circuit 22 is connected with single-chip microcomputer 21 output pins, and the output terminal of driving circuit 22 then connects the relay coil of heater circuit 1 as the output terminal of whole governor circuit 2.
Particularly, the heater circuit 1 of present embodiment includes first resistance R 1, second resistance R 2, the 3rd resistance R 3, first relay J 1, second relay J 2, the 3rd relay J 3 and the 4th relay J 4, wherein, the power of first resistance R 1 is 2500W, the power of second resistance R 2 is 2000W, the power of the 3rd resistance R 3 is 2500W, first relay J 1, the contact of second relay J 2 and the 3rd relay J 3 is respectively moving together contact, the contact of the 4th relay J 4 is for including moving contact a, the transfer contact of the first stationary contact b1 and the second stationary contact b2, first relay J 1, second relay J 2, the coil of the 3rd relay J 3 and the 4th relay J 4 links to each other with the output terminal of governor circuit 2 respectively;
One end of first relay J, 1 contact links to each other with civil power zero line N, the other end of this first relay J, 1 contact is divided into three the tunnel, the first via links to each other through the first stationary contact b1 of first resistance R 1 and the 4th relay J 4, the second the tunnel links to each other through the end of second resistance R 2 with the 3rd relay J 3 contacts, Third Road links to each other through the second stationary contact b2 of the 3rd resistance R 3 and the 4th relay J 4, contact one end of the moving contact a of the 4th relay J 4 and second relay J 2 links to each other, the other end of second relay J, 2 contacts links to each other with civil power live wire L, and the other end of the 3rd relay J 3 contacts connects civil power live wire L.
The input signal of first input circuit 3 mainly comes from the button on the operation of electric water heater panel, the user is by the button on the guidance panel, can select different heating modes, as common heating, very fast heating or increase-volume heating etc., these different heating modes are that the various combination mode by heating resistor in the electric hot water realizes;
Second input circuit is the inventive point of present embodiment, be provided with a gauge tap that can produce high level or low level signal respectively in this second input circuit 4, second input circuit 4 is used to limit the maximum power value after heating resistor makes up, particularly, second input circuit 4 preferably can be following circuit structure: this second input circuit 4 includes a 10K Ω resistance R, a 10000pF capacitor C and a toggle switch T as gauge tap, wherein, toggle switch T is the two retaining toggle switchs that include the first gear A and the second gear B, the end ground connection of this toggle switch T, the other end of toggle switch T divides three the tunnel, second input end of the first via and governor circuit 2 (being one of them input end of single-chip microcomputer) links to each other, the second the tunnel through capacitor C ground connection, and Third Road is through resistance R connection+5V positive source.Here, the purpose of capacitor C and resistance R is in order to realize the gear conversion of toggle switch T, when guaranteeing that toggle switch T pushes the first gear A, to send low level signal to single-chip microcomputer 21, when toggle switch T pushes the second gear B, can send high level signal to single-chip microcomputer 21.
When toggle switch T pushed the first gear A, single-chip microcomputer 21 was received a low level signal, and this moment, the rated power of electric heater was defined as 2500W, and promptly how no matter the heating resistor in the electric heater make up, and peak power all can not surpass 2500W; When toggle switch T pushed the second gear B, single-chip microcomputer 21 was received a high level signal, and the rated power of electric heater is defined as 4500W, i.e. after the heating resistor of the electric heater combination, peak power can not surpass 4500W.
Embodiment two, as shown in Figure 2:
The circuit structure of the heater circuit 1 of embodiment two and embodiment one, governor circuit 2 and first input circuit 3 is all identical, the difference of present embodiment and embodiment one is, toggle switch T in second input circuit 4 and the connecting circuit between the single-chip microcomputer 21 change, and have substituted the combination of original resistance and electric capacity with two resistance.
Particularly, second input circuit 4 of present embodiment include 1K Ω the 4th resistance R 4,10K Ω the 5th resistance R 5 and as the toggle switch T of gauge tap, wherein, toggle switch T is still for including the two retaining toggle switchs of the first gear A and the second gear B, the end ground connection of this toggle switch T, the other end of this toggle switch T is through 4 fens two-way of the 4th resistance R, and the first via directly links to each other with second input end of governor circuit 2, and the second the tunnel through the 5th resistance R 5 connection+5V positive sources.
Embodiment three, as shown in Figure 3:
Present embodiment has changed toggle switch T into electric connector T ', electric connector T ' is made up of plug-in unit T1 ' and fitting T2 ', fitting T2 ' ground connection, plug-in unit T1 ' one tunnel directly links to each other with second input end of governor circuit 2, the second the tunnel through 10000pF capacitor C ground connection, and Third Road is through 10K Ω resistance R connection+5V positive source.
When plug-in unit T1 ' and fitting T2 ' are plugged on a time-out, at this moment, be equivalent to toggle switch T and push the first gear A, single-chip microcomputer 21 receives a low level signal, and the rated power of electric heater is defined as 2500W; When plug-in unit T1 ' and fitting T2 ' disconnection, at this moment, be equivalent to toggle switch T and push the second gear B, single-chip microcomputer 21 receives a high level signal, and the rated power of electric heater is defined as 4500W.
Embodiment four, as shown in Figure 4:
Present embodiment is on the basis of embodiment three, 10K Ω resistance R and 10000pF electric capacity are replaced with the 4th resistance R 4 of 1K Ω and the 5th resistance R 5 of 10K Ω, at this moment, fitting T2 ' ground connection, plug-in unit T1 ' is through 4 fens two-way of the 4th resistance R, the first via directly links to each other with second input end of governor circuit 2, and the second the tunnel through the 5th resistance R 5 connection+5V positive sources.
The foregoing description one to embodiment four is four kinds of different circuit structures of second input circuit 4, but basic functional principle is identical, toggle switch T and electrical connector T1 ' can both realize the selection of two kinds of different rated power of electric heater (2500W and 4500W), usually, being chosen in of rated power can only be regulated by the professional according to customer need before the product export, in case the rated power of selecting the back electric heater is installed is not just made change, when reinstalling, just can carry out the selection again of rated power next time.
As shown in Figure 5, guidance panel button synoptic diagram for this enforcement electric heater, wherein, K1 is the start key, K2 is three kinds of heating modes (very fast heating, increase-volume heating and common heating) options buttons, and K3 is the key that moves up, and K4 is for moving down key, K5 is an acknowledgement key, and the principle of work of present embodiment electric heater is described in detail in detail below in conjunction with this guidance panel:
1, before installation, if toggle switch T is pushed the first gear A or the plug-in unit T1 ' of electric connector T ' is connected with fitting T2 ', at this moment, single-chip microcomputer 21 receives a low level signal, and the rated power of electric heater is chosen as 2500W.
(1), presses K1 key start, the heating mode work of start back electric heater before, and one of the icon of very fast heating, two kinds of heating modes of increase-volume heating keeps Chang Liang by last shutdown;
(2), press the K2 key, when rated power is 2500W, have only the flicker for a moment of the icon of two kinds of heating modes of very fast heating, increase-volume heating;
(3), carry out the selection of very fast heating, two kinds of heating modes of increase-volume heating by K3 or K4 key;
(4), confirm, that confirms the very fast heating in back, two kinds of heating mode icons of increase-volume heating stops flicker for a moment, and keeps Chang Liang, if do not confirm, then automatically restores to original heating mode after 5 seconds by the K5 key.
When electric heater is operated in rated power and is 2500W, select under the heating mode of very fast heating, have only 1 heating of first resistance R, operating power is 2500W; Select under the heating mode of increase-volume heating, have only 3 heating of the 3rd resistance R, operating power is 2500W, therefore, toggle switch T pushed the first gear A or when the plug-in unit T1 ' of electric connector T ' is connected with fitting T2 ', no matter be operated under which kind of heating mode, the peak power of electric heater all can only be limited within the 2500W.
2, before installation, if toggle switch T is pushed the second gear B or with the plug-in unit T1 ' of electric connector T ' and fitting T2 ' disconnection, at this moment, single-chip microcomputer 21 receives a high level signal, the rated power of electric heater is chosen as 4500W.
(1), presses K1 key start, the heating mode work of start back electric heater before, and one of very fast heating, increase-volume heating, three kinds of heating mode icons of common heating keep Chang Liang by last shutdown;
(2), press the K2 key, when rated power was 4500W, one of icon of very fast heating, increase-volume heating and three kinds of heating modes of common heating all can glimmer;
(3), carry out the selection of very fast heating, increase-volume heating and three kinds of heating modes of common heating by K3 or K4 key;
(4), confirm by the K5 key, confirm the very fast heating in back, increase-volume heating and three kinds of heating modes of common heating icon stop flicker for a moment, and keep Chang Liang, if do not confirm, then automatically restore to original heating mode after 5 seconds.
When electric heater is operated in rated power and is 4500W, select under the heating mode of very fast heating, first resistance R 1, second resistance R 2 are heated simultaneously, operating power is 4500W; Select under the heating mode of increase-volume heating second resistance R 2, the 3rd resistance R 3 are heated simultaneously, operating power is 4500W; Select under the heating mode of common heating, the 3rd resistance R 3 is heated separately, operating power is 2500W, therefore, toggle switch T pushed the second gear B or during with the plug-in unit T1 ' of electric connector T ' and fitting T2 ' disconnection, no matter be operated under which kind of heating mode, the peak power of electric heater all can only be limited within the 4500W.
Claims (7)
1. the changeable electric heater control circuit of rated power includes
Heater circuit is made up of a plurality of heating resistors that are arranged in parallel and the relay that is serially connected in each described heating resistor loop;
Governor circuit is controlled the switching of each described relay, and this governor circuit includes first signal input part and output terminal, and the coil of each described relay links to each other with the output terminal of described governor circuit;
First input circuit is used to set the array mode of described heating resistor, and the input signal of this first input circuit is taken from the button on the described operation of electric water heater panel, and first signal input part of the output terminal of this first input circuit and described governor circuit links to each other;
It is characterized in that: described control circuit also includes second input circuit that is used to limit the maximum power value after described heating resistor makes up, described governor circuit also includes the secondary signal input end, wherein, described second input circuit has the gauge tap that can produce high level or low level signal respectively, and the secondary signal input end of the output terminal of described second input circuit and described governor circuit links to each other.
2. the changeable electric heater control circuit of rated power according to claim 1, it is characterized in that: described second input circuit includes resistance, electric capacity and as the toggle switch of described gauge tap, wherein, described toggle switch is the two retaining toggle switchs that include first gear and second gear, one end ground connection of this toggle switch, the other end of this toggle switch divides three the tunnel, one the tunnel links to each other with second input end of described governor circuit, the second the tunnel through described capacity earth, and Third Road connects+the 5V positive source through described resistance.
3. the changeable electric heater control circuit of rated power according to claim 1, it is characterized in that: described second input circuit includes the 4th resistance, the 5th resistance and as the toggle switch of described gauge tap, wherein, described toggle switch is the two retaining toggle switchs that include first gear and second gear, one end ground connection of this toggle switch, the other end of this toggle switch divides two-way through described the 4th resistance, one the tunnel directly links to each other with second input end of described governor circuit, and the second the tunnel through described the 5th resistance connection+5V positive source.
4. the changeable electric heater control circuit of rated power according to claim 1, it is characterized in that: described second input circuit includes resistance, electric capacity and as the electric connector of described gauge tap, wherein, described electric connector is made up of plug-in unit and fitting, described fitting ground connection, described plug-in unit one tunnel is direct to link to each other with second input end of described governor circuit, and the second the tunnel through described capacity earth, and Third Road connects+the 5V positive source through described resistance.
5. the changeable electric heater control circuit of rated power according to claim 1, it is characterized in that: described second input circuit includes the 4th resistance, the 5th resistance and as the electric connector of described gauge tap, wherein, described electric connector is made up of plug-in unit and fitting, described fitting ground connection, described plug-in unit divides two-way through described the 4th resistance, and one the tunnel directly links to each other with second input end of described governor circuit, and the second the tunnel through described the 5th resistance connection+5V positive source.
6. according to the changeable electric heater control circuit of the described rated power of arbitrary claim in the claim 1～5, it is characterized in that: described heater circuit includes first resistance, second resistance, the 3rd resistance, first relay, second relay, the 3rd relay and the 4th relay, wherein, described first relay, the contact of second relay and the 3rd relay is respectively moving together contact, the contact of described the 4th relay is for including moving contact, the transfer contact of first stationary contact and second stationary contact, described first relay, second relay, the coil of the 3rd relay and the 4th relay links to each other with the output terminal of described governor circuit respectively;
One end of described first relay contact links to each other with the civil power zero line, the other end of this first relay contact is divided into three the tunnel, the first via links to each other through first stationary contact of described first resistance and described the 4th relay, the second tunnel end through described second resistance and described the 3rd relay contact links to each other, Third Road links to each other through second stationary contact of described the 3rd resistance and described the 4th relay, contact one end of the moving contact of described the 4th relay and described second relay links to each other, the other end of this second relay contact links to each other with the civil power live wire, and the other end of described the 3rd relay contact connects described civil power live wire.
7. the changeable electric heater control circuit of rated power according to claim 1, it is characterized in that: described governor circuit includes the single-chip microcomputer that model is S3F9488, is serially connected with the driving circuit that drives described relay work between described single-chip microcomputer and the described relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205218715U CN201788431U (en) | 2010-09-06 | 2010-09-06 | Control circuit of electric water heater with changeable rated power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205218715U CN201788431U (en) | 2010-09-06 | 2010-09-06 | Control circuit of electric water heater with changeable rated power |
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| Publication Number | Publication Date |
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| CN201788431U true CN201788431U (en) | 2011-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205218715U Expired - Fee Related CN201788431U (en) | 2010-09-06 | 2010-09-06 | Control circuit of electric water heater with changeable rated power |
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| CN (1) | CN201788431U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104422140A (en) * | 2013-09-02 | 2015-03-18 | 海尔集团公司 | High-power heater, electric water heater comprising same and control method of electric water heater |
| CN108354462A (en) * | 2018-01-17 | 2018-08-03 | 广东美的厨房电器制造有限公司 | Control method and device, the oven of oven power |
-
2010
- 2010-09-06 CN CN2010205218715U patent/CN201788431U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104422140A (en) * | 2013-09-02 | 2015-03-18 | 海尔集团公司 | High-power heater, electric water heater comprising same and control method of electric water heater |
| CN108354462A (en) * | 2018-01-17 | 2018-08-03 | 广东美的厨房电器制造有限公司 | Control method and device, the oven of oven power |
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Granted publication date: 20110406 Termination date: 20130906 |