CN207301735U - Electromagnetic oven and voltage display device - Google Patents
Electromagnetic oven and voltage display device Download PDFInfo
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- CN207301735U CN207301735U CN201721382586.8U CN201721382586U CN207301735U CN 207301735 U CN207301735 U CN 207301735U CN 201721382586 U CN201721382586 U CN 201721382586U CN 207301735 U CN207301735 U CN 207301735U
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- 238000005070 sampling Methods 0.000 claims abstract description 86
- 230000005611 electricity Effects 0.000 claims description 9
- 230000002159 abnormal effect Effects 0.000 abstract description 6
- 230000006698 induction Effects 0.000 abstract 6
- 238000010438 heat treatment Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000010411 cooking Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The utility model provides an electromagnetism stove and voltage display device. The induction cooker comprises a single chip microcomputer and a display module, wherein the display module is electrically connected with the single chip microcomputer and comprises a display screen arranged on a panel of the induction cooker and a voltage sampling circuit, the input end of the voltage sampling circuit is connected with a mains supply, and the output end of the voltage sampling circuit is connected with the single chip microcomputer; when the induction cooker is in a starting state and does not enter a working state, the voltage sampling circuit is used for sampling the mains supply voltage input into the voltage sampling circuit to obtain a sampling voltage and outputting the sampling voltage to the single chip microcomputer; and the singlechip is used for obtaining the commercial power voltage value corresponding to the sampling voltage according to the sampling voltage and controlling the display module to display the commercial power voltage value on the display screen. The utility model provides an induction cooker can show operating voltage to the user, has avoided induction cooker work under abnormal voltage, has protected the induction cooker.
Description
Technical field
It the utility model is related to household electrical appliance technical field, more particularly to a kind of electromagnetic oven and voltage display device.
Background technology
Electromagnetic oven is a kind of common household electrical appliance.In daily life, using electromagnetic oven to the pot that is placed on electromagnetic oven
The equipment such as tool or kettle is heated, to carry out food processing or heat up water.
Electromagnetic oven on the market is general on panel at present all carry display interface, display interface generally use charactron or
Liquid crystal display, can show the parameters such as the power of electromagnetic oven, temperature, time when electromagnetic oven works.Set on the panel of electromagnetic oven
There are multiple function buttons, watt level, the temperature that user can be operable to function button when control electromagnetic oven works are high
Low, time length.
But there is certain requirement to operating voltage range during electromagnetic oven work.If electromagnetic oven is operated in overtension
Or under too low environment, electromagnetic oven damage of internal device can be caused, reduce the complete machine service life of electromagnetic oven.People at present
It can not know the operating voltage of electromagnetic oven.
Utility model content
At least one in order to solve the problems, such as to mention in background technology, the utility model provides a kind of electromagnetic oven and voltage and shows
Showing device, by setting voltage sampling circuit, can show operating voltage to user, avoid electromagnetic oven and be operated in abnormal voltage
Under, protect electromagnetic oven.
To achieve these goals, the utility model provides a kind of electromagnetic oven, including microcontroller and display module, shows mould
Block and monolithic mechatronics, display module include the display screen being arranged on the panel of electromagnetic oven；Further include voltage sampling circuit,
The input terminal connection mains supply of voltage sampling circuit, the output terminal of voltage sampling circuit are connected with microcontroller；At electromagnetic oven
In open state and when being introduced into working status, voltage sampling circuit is used to carry out the line voltage of input voltage sample circuit
Sampling obtains sampled voltage, and sampled voltage is exported to microcontroller；Microcontroller, for obtaining sampled voltage according to sampled voltage
Corresponding line voltage value, and control display module to show line voltage value on a display screen.
Electromagnetic oven as described above, voltage sample is carried out by voltage sampling circuit to line voltage, and then microcontroller can
To obtain the current operating voltage of electromagnetic oven according to sampled voltage and the operating voltage is shown to user by display device, make
The current operating voltage of electromagnetic oven can be known by obtaining user.And then can be excessive or too low in operating voltage to avoid electromagnetic oven
When work, protect electromagnetic oven, extend the service life of electromagnetic oven.
In an embodiment of the utility model, microcontroller is specifically used for：According to default sample voltage value and alternating current electricity
The correspondence of pressure value, obtains the corresponding line voltage value of sampled voltage of voltage sampling circuit output.
In an embodiment of the utility model, voltage sampling circuit is specifically used for：To the city of input voltage sample circuit
Piezoelectric voltage carries out AC sampling and obtains the first sampled voltage, and the first sampled voltage is exported to microcontroller.
In an embodiment of the utility model, rectification circuit is further included, rectification circuit is connected to mains supply and voltage
Between the input terminal of sample circuit；Rectification circuit, for being DC voltage by the line voltage rectification of input rectification circuit, and will
Direct voltage output is to voltage sampling circuit；Voltage sampling circuit is specifically used for：To the DC voltage of input voltage sample circuit
Carry out direct current to sample to obtain the second sampled voltage, and the second sampled voltage is exported to microcontroller.
In an embodiment of the utility model, alarm module, alarm module and monolithic mechatronics are further included；Microcontroller
It is additionally operable to：Judge whether line voltage value is more than the first predetermined threshold value, and whether line voltage value is less than the second predetermined threshold value,
First predetermined threshold value is more than the second predetermined threshold value；If line voltage value is more than the first predetermined threshold value, or line voltage value is less than
Second predetermined threshold value, then control alarm module alarm.
As above electromagnetic oven, if microcontroller determines electromagnetic oven, current operating voltage is not at normal working voltage model
In enclosing, then alarm module can be controlled to alarm to user so that user knows that the current operating voltage of electromagnetic oven is abnormal.Avoid
Since user does not know the current operating voltage of electromagnetic oven, whether normal or user does not notice that the electromagnetic oven of display is current
Operating voltage and cause electromagnetic oven to be operated under abnormal voltage, cause electromagnetic oven to damage.Electromagnetic oven is protected, extends electromagnetism
The service life of stove.
In above-described embodiment of the utility model, microcontroller is additionally operable to, and is controlled and is closed when electromagnetic oven is in holding state
Close display module.
In above-described embodiment of the utility model, microcontroller is additionally operable to, and is controlled when electromagnetic oven is in running order aobvious
Show module show on a display screen it is following at least one of：Power, temperature and operating time.
In above-described embodiment of the utility model, display screen is flexible PCB.
The utility model also provides a kind of voltage display device, applied in household electrical appliance, including：Microcontroller, display mould
Block and voltage sampling circuit；Display module and monolithic mechatronics, display module include the display screen being arranged on household electrical appliance,
The input terminal connection mains supply of voltage sampling circuit, the output terminal of voltage sampling circuit are connected with microcontroller；In household electrical appliance
When in open state and being introduced into working status, voltage sampling circuit be used for the line voltage of input voltage sample circuit into
Row sampling obtains sampled voltage, and sampled voltage is exported to microcontroller；Microcontroller, for obtaining sampling electricity according to sampled voltage
Corresponding line voltage value is pressed, and controls display module to show line voltage value on a display screen.
In above-described embodiment of the utility model, microcontroller is specifically used for：According to default sample voltage value and alternating current
The correspondence of magnitude of voltage, obtains the corresponding line voltage value of sampled voltage of voltage sampling circuit output.
The construction of the utility model and its other purpose of utility model and beneficial effect will be in conjunction with the accompanying drawings
Description of preferred embodiments and it is more obvious understandable.
Brief description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, drawings in the following description are
Some embodiments of the utility model, for those of ordinary skill in the art, in the premise of not making the creative labor property
Under, other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is the structure diagram for the electromagnetic oven that the utility model embodiment provides；
Fig. 2 is the structure diagram of another structure for the electromagnetic oven that the utility model embodiment provides；
Fig. 3 is the structure diagram for the voltage display device that the utility model embodiment provides.
Description of reference numerals：
11：Microcontroller； 12：Display module；
13：Voltage sampling circuit； 14：Bridge heap.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, those of ordinary skill in the art's all other embodiments obtained without making creative work, belongs to
The scope of the utility model protection.
Electromagnetic oven and voltage display device provided by the utility model, it is intended to solve in currently available technology due to that can not obtain
Know and be easy to cause electromagnetic oven damage caused by the operating voltage of electromagnetic oven when the operating voltage of electromagnetic oven is excessive or too low
Technical problem.
Fig. 1 is the structure diagram for the electromagnetic oven that the utility model embodiment provides.As shown in Figure 1, the present embodiment provides
Electromagnetic oven, can include：Microcontroller 11 and display module 12.Display module 12 is electrically connected with microcontroller 11, display module 12
Including the display screen being arranged on the panel of electromagnetic oven.It can also include voltage sampling circuit 13.Wherein, voltage sampling circuit 13
Input terminal connection mains supply, the output terminal of voltage sampling circuit 13 is connected with microcontroller 11.
When electromagnetic oven is in open state and is introduced into working status, voltage sampling circuit 13 is used to adopt input voltage
The line voltage of sample circuit 13 is sampled to obtain sampled voltage, and sampled voltage is exported to microcontroller 11.
Microcontroller 11, for obtaining the corresponding line voltage value of sampled voltage according to sampled voltage, and controls display module
12 show line voltage value on a display screen.
Electromagnetic oven provided in this embodiment, in structure, can include shell and panel.Formed between shell and panel
Microcontroller 11, display module 12 and voltage sampling circuit 13 can be provided with inner space.Display module 12 and voltage sample
Circuit 13 is electrically connected with microcontroller 11.Display module 12 includes display screen, and display screen is arranged on the panel of electromagnetic oven, can be with
The relevant information of electromagnetic oven is displayed for a user when electromagnetic oven is powered.For example, display can be passed through after electromagnetic oven is begun to warm up
Shield heating power, heating time or the heating-up temperature that electromagnetic oven is shown to user, so that user is configured electromagnetic oven.
Electromagnetic oven provided in this embodiment, in the principle that voltage is shown, first, electromagnetic oven access power grid is powered.Electromagnetism
The state of stove can be defined as three kinds of states, be respectively holding state, open state and working status.Wherein, holding state is
The state for referring to electromagnetic oven access power grid but not starting shooting.Open state refers to that electromagnetic oven has accessed power grid and started shooting,
But user be not through touch electromagnetic oven panel on control button selection cooking function when state.Working status refers to electricity
Magnetic stove is already powered on, and the state that electromagnetic oven has started after user setting cooking function.If electromagnetic oven is in work
Brownout or excessive when making, then be easy to cause the damage of electromagnetic oven.Therefore, it is in open state in electromagnetic oven and is introduced into
During working status, voltage sampling circuit 13 is sampled to obtain sampled voltage to the line voltage of input voltage sample circuit 13,
And sampled voltage is exported to microcontroller 11.Microcontroller 11 obtains the corresponding line voltage value of sampled voltage according to sampled voltage,
And display module 12 is controlled to show line voltage value on a display screen.In this way, work is not started to after electromagnetic oven start and also
Before, user can know the current operating voltage of electromagnetic oven by showing the line voltage value of screen display.When electromagnetic oven
When operating voltage is too low or excessive, user can select to close electromagnetic oven without using so as to protect electromagnetic oven, improving electricity
The security that magnetic stove uses, extends the service life of electromagnetic oven.When the operating voltage of electromagnetic oven is in normal voltage range,
User can be continuing with electromagnetic oven.
As it can be seen that electromagnetic oven provided in this embodiment, voltage sample is carried out by voltage sampling circuit to line voltage, and then
Microcontroller can obtain the current operating voltage of electromagnetic oven according to sampled voltage and show the operating voltage by display device
To user so that user can know the current operating voltage of electromagnetic oven.And then can be excessive in operating voltage to avoid electromagnetic oven
Or work when too low, electromagnetic oven is protected, extends the service life of electromagnetic oven.
It should be noted that the present embodiment is not limited for the specific implementation of voltage sampling circuit 13, as long as can
Voltage sample is carried out to line voltage to realize.Voltage sampling circuit 13 can realize voltage sample to be existing
Any circuit.
It should be noted that the present embodiment is not limited for the type and model of microcontroller 11.Microcontroller is electromagnetic oven
In kernel control chip, also referred to as microprocessor, micro-control unit (Microcontroller Unit, MCU).In electromagnetic oven
Two parts can be greatly classified into.A part is that line voltage is converted to high frequency voltage, and this high frequency voltage is given and is encouraged
Magnetic coil, so as to produce alternating magnetic field, makes the bottom of a pan produce eddy-current heating.This part is properly termed as the heating system of electromagnetic oven.
Another part is exactly the microcontroller of electromagnetic oven.Microcontroller be used for control electromagnetic oven heating system output power size, when
Begin to warm up, when stop the action such as heating.Meanwhile microcontroller is also equipped with the working status of detection heating system with to electromagnetic oven
Protected.
It should be noted that the present embodiment is not limited for the specific implementation of display module 12.Display module 12
It can include the circuit, chip or display device for being used for realization presentation of information.Wherein, display screen can be flexible PCB.
Wherein, in order to obtain the corresponding line voltage value of sampled voltage, microcontroller 11 can be specifically used for：
According to the correspondence of default sample voltage value and line voltage value, adopting for the output of voltage sampling circuit 13 is obtained
The corresponding line voltage value of sample voltage.
Specifically, the correspondence of default sample voltage value and line voltage value is previously provided with inside microcontroller 11.
The present embodiment is not specially limited for the correspondence of default sample voltage value and line voltage value, can be adopted according to voltage
The implementation of sample circuit 13 it is different and different.Microcontroller 11 is according to default sample voltage value and line voltage value
Correspondence, can obtain the corresponding line voltage value of sampled voltage of the output of voltage sampling circuit 13.
Wherein, the present embodiment is not limited for the connection mode of voltage sampling circuit 13 and mains supply.
In a kind of connection mode, mains supply is connected with voltage sampling circuit 13, the city of input voltage sample circuit 13
Piezoelectric voltage is alternating current.Exemplary, as shown in Figure 1, the zero curve input terminal (AC/N) and firewire input terminal (AC/ of mains supply
L) it is connected with voltage sampling circuit 13, the voltage of input voltage sample circuit 13 is alternating voltage.
Voltage sampling circuit 13 is specifically used for：
First sampled voltage is obtained to the line voltage progress AC sampling of input voltage sample circuit 13, and first is adopted
Sample voltage output is to microcontroller 11.
So-called AC sampling, be by ac analog without rectification, still with AC analogue signal be supplied directly to simulation/
Digital quantizer (Analog Digital Converter, ADC) or sample circuit are sampled.Since AC sampling is direct
Alternating current is sampled, so real-time is good, can more accurately reflect the change of ac analog.
In another connection mode, mains supply is connected with voltage sampling circuit 13, input voltage sample circuit 13
Voltage is direct current.Exemplary, Fig. 2 is the structural representation of another structure for the electromagnetic oven that the utility model embodiment provides
Figure.As shown in Fig. 2, electromagnetic oven can also include rectification circuit.Rectification circuit is connected to mains supply and voltage sampling circuit 13
Input terminal between.Wherein, the present embodiment is not limited for the implementation of rectification circuit, such as can be bridge heap.In Fig. 2
In, the zero curve input terminal (AC/N) of mains supply is connected with 3 feet of bridge heap 14, the firewire input terminal (AC/L) and bridge of mains supply
The 2 feet connection of heap 14.1 foot of bridge heap 14 is connected with voltage sampling circuit 13.The 4 feet ground connection of bridge heap 14.The present embodiment is simultaneously unlimited
The connection mode of constant voltage sample circuit 13 and bridge heap 14.Such as in fig. 2,4 feet of bridge heap 14 can also be with voltage sample electricity
Road 13 connects.
Rectification circuit, for being DC voltage by the line voltage rectification of input rectification circuit, and by direct voltage output
To voltage sampling circuit 13.
Voltage sampling circuit 13 is specifically used for：
The DC voltage progress direct current of input voltage sample circuit 13 is sampled to obtain the second sampled voltage, and second is adopted
Sample voltage output is to microcontroller 11.
The sampling of so-called direct current, is ac analog first to be carried out to rectification and filtering is converted to corresponding analog DC electricity, so
Sampled afterwards by ADC or sample circuit.Since AC sampling is that direct current is sampled, to ADC or adopt
The requirement of sample circuit is relatively low.Be additionally, since direct current signal have already been through rectification and filtering link, therefore antijamming capability compared with
By force.
Wherein, in order to further protect electromagnetic oven, electromagnetic oven provided in this embodiment can also include alarm module, alarm
Module is electrically connected with microcontroller 11.
Microcontroller 11 is additionally operable to：
Judge whether line voltage value is more than the first predetermined threshold value, and whether line voltage value is less than the second default threshold
Value, the first predetermined threshold value are more than the second predetermined threshold value.
If line voltage value is more than the first predetermined threshold value, or line voltage value is less than the second predetermined threshold value, then control report
Alert module alarm.
Specifically, the first predetermined threshold value reflects the maximum of electromagnetic oven operating voltage range, the reflection of the second predetermined threshold value
The minimum value of electromagnetic oven operating voltage range.By setting the first predetermined threshold value and the second predetermined threshold value, microcontroller 11 is by city
Piezoelectric voltage value is compared with the first predetermined threshold value and the second predetermined threshold value, it may be determined that whether the current operating voltage of electromagnetic oven
In the range of normal working voltage.If the current operating voltage of electromagnetic oven is not in the range of normal working voltage,
Microcontroller 11 controls alarm module to alarm to user so that user can know that the current operating voltage of electromagnetic oven is abnormal.Avoid
Since user does not know electromagnetic oven current operating voltage, whether normal or user does not notice that the electromagnetic oven of display is worked as
Preceding operating voltage and cause electromagnetic oven to be operated under abnormal voltage, cause electromagnetic oven to damage.Electromagnetic oven is protected, extends electricity
The service life of magnetic stove.
It should be noted that the present embodiment is not limited for the specific value of the first predetermined threshold value and the second predetermined threshold value
It is fixed, it is configured as needed.
Wherein, microcontroller 11 can be also used for, the control closing display module 12 when electromagnetic oven is in holding state.
Specifically, only run when standby by part of module for electromagnetic oven.In order to reduce the stand-by power consumption of electromagnetic oven, microcontroller
11 can control closing display module 12 when electromagnetic oven is in holding state.
Wherein, microcontroller 11 can be also used for, and display module 12 is controlled when electromagnetic oven is in running order in display screen
At least one of during upper display is following：Power, temperature and operating time.
Specifically, after the in running order start-up operation of electromagnetic oven, the present operating voltage for illustrating electromagnetic oven is normal.
Display screen can not show the operating voltage of electromagnetic oven, and show operating power, operating temperature and the operating time of electromagnetic oven, with
Just user is configured electromagnetic oven.
A kind of electromagnetic oven is present embodiments provided, including：Microcontroller and display module.Display module is electrically connected with microcontroller
Connect, display module includes the display screen being arranged on the panel of electromagnetic oven.It can also include voltage sampling circuit.Wherein, voltage
The input terminal connection mains supply of sample circuit, the output terminal of voltage sampling circuit are connected with microcontroller.It is in and opens in electromagnetic oven
Machine state and when being introduced into working status, voltage sampling circuit is used to sample the line voltage of input voltage sample circuit
Sampled voltage is obtained, and sampled voltage is exported to microcontroller.Microcontroller, corresponds to for obtaining sampled voltage according to sampled voltage
Line voltage value, and control display module to show line voltage value on a display screen.Electromagnetic oven provided in this embodiment, passes through
Voltage sampling circuit carries out line voltage voltage sample, and then microcontroller can be current according to sampled voltage acquisition electromagnetic oven
The operating voltage is simultaneously shown to user by operating voltage by display device, and then can be excessive in operating voltage to avoid electromagnetic oven
Or work when too low, electromagnetic oven is protected, extends the service life of electromagnetic oven.
Fig. 3 is the structure diagram for the voltage display device that the utility model embodiment provides.Electricity provided in this embodiment
Display device is pressed, can be applied in household electrical appliance.The present embodiment does not limit the type of household electrical appliance, such as can be electromagnetism
Stove, electric cooker, electric pressure cooking saucepan etc..Household electrical appliance include display screen.As described in Figure 3, voltage display device provided in this embodiment,
It can include：Microcontroller 11, display module 12 and voltage sampling circuit 13.
Wherein, display module 12 is electrically connected with microcontroller 11, and display module 12 includes the display being arranged on household electrical appliance
Screen, the input terminal connection mains supply of voltage sampling circuit 13, the output terminal of voltage sampling circuit 13 are connected with microcontroller 11.
When household electrical appliance are in open state and are introduced into working status, voltage sampling circuit 13 is used for input voltage
The line voltage of sample circuit 13 is sampled to obtain sampled voltage, and sampled voltage is exported to microcontroller 11.
Microcontroller 11, for obtaining the corresponding line voltage value of sampled voltage according to sampled voltage, and controls display module
12 show line voltage value on a display screen.
Wherein, microcontroller 11 is specifically used for：
According to the correspondence of default sample voltage value and line voltage value, adopting for the output of voltage sampling circuit 13 is obtained
The corresponding line voltage value of sample voltage.
Wherein, voltage sampling circuit 13 is specifically used for：
First sampled voltage is obtained to the line voltage progress AC sampling of input voltage sample circuit 13, and first is adopted
Sample voltage output is to microcontroller 11.
Wherein, voltage display device can also include rectification circuit, and rectification circuit is connected to mains supply and voltage sample
Between the input terminal of circuit 13.
Rectification circuit, for being DC voltage by the line voltage rectification of input rectification circuit, and by direct voltage output
To voltage sampling circuit 13.
Voltage sampling circuit 13 is specifically used for：
The DC voltage progress direct current of input voltage sample circuit 13 is sampled to obtain the second sampled voltage, and second is adopted
Sample voltage output is to microcontroller 11.
Wherein, voltage display device further includes alarm module, and alarm module is electrically connected with microcontroller 11.
Microcontroller 11 is additionally operable to：
Judge whether line voltage value is more than the first predetermined threshold value, and whether line voltage value is less than the second default threshold
Value, the first predetermined threshold value are more than the second predetermined threshold value.
If line voltage value is more than the first predetermined threshold value, or line voltage value is less than the second predetermined threshold value, then control report
Alert module alarm.
Wherein, microcontroller 11 is additionally operable to, the control closing display module 12 when household electrical appliance are in holding state.
Wherein, microcontroller 11 is additionally operable to, and display module 12 is controlled on a display screen when household electrical appliance are in running order
Show it is following at least one of：Power, temperature and operating time.
Voltage display device provided in this embodiment, its technical principle and technique effect shown in above-mentioned Fig. 1~Fig. 2 with implementing
Example is similar, and details are not described herein again.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above-mentioned each method embodiment can lead to
The relevant hardware of programmed instruction is crossed to complete.Foregoing program can be stored in a computer read/write memory medium.The journey
Sequence upon execution, execution the step of including above-mentioned each method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or
Person's CD etc. is various can be with the medium of store program codes.
In the description of the utility model, it is to be understood that term " first ", " second " are only used for description purpose, and
It is not intended that instruction or hint relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define
At least one this feature can be expressed or be implicitly included to the feature of " first ", " second ".
In addition, in the utility model, unless otherwise clearly defined and limited, term " connection ", " connected " etc. should be done
It broadly understood, such as can mechanically connect or be electrically connected；Can be directly connected to, intermediary can also be passed through
It is indirectly connected, can is the interaction relationship of connection inside two elements or two elements, unless otherwise restricted clearly,
For the ordinary skill in the art, it can understand that above-mentioned term is in the utility model specific as the case may be
Implication.
Finally it should be noted that：Various embodiments above only illustrating the technical solution of the utility model embodiment, rather than
It is limited；Although the utility model embodiment is described in detail with reference to foregoing embodiments, this area it is common
Technical staff should be understood：It can still modify the technical solution described in foregoing embodiments, or to wherein
Some or all of technical characteristic carries out equivalent substitution；And these are changed or are replaced, the essence of appropriate technical solution is not made
Depart from the scope of the utility model embodiment technical solution.
Claims (10)
1. a kind of electromagnetic oven, including microcontroller (11) and display module (12), the display module (12) and the microcontroller
(11) it is electrically connected, the display module (12) includes the display screen being arranged on the panel of the electromagnetic oven, it is characterised in that also
Including voltage sampling circuit (13), the input terminal connection mains supply of the voltage sampling circuit (13), the voltage sample electricity
The output terminal on road (13) is connected with the microcontroller (11)；
When the electromagnetic oven is in open state and is introduced into working status, the voltage sampling circuit (13) is used for input
The line voltage of the voltage sampling circuit (13) is sampled to obtain sampled voltage, and the sampled voltage is exported to described
Microcontroller (11)；
The microcontroller (11), for obtaining the corresponding line voltage value of the sampled voltage according to the sampled voltage, and controls
The display module (12) is made in line voltage value described in the display screen display.
2. electromagnetic oven according to claim 1, it is characterised in that the microcontroller (11) is specifically used for：
According to the correspondence of default sample voltage value and line voltage value, the voltage sampling circuit (13) output is obtained
The corresponding line voltage value of the sampled voltage.
3. electromagnetic oven according to claim 1, it is characterised in that the voltage sampling circuit (13) is specifically used for：
AC sampling is carried out to the line voltage for inputting the voltage sampling circuit (13) and obtains the first sampled voltage, and by described in
First sampled voltage is exported to the microcontroller (11).
4. electromagnetic oven according to claim 1, it is characterised in that further include rectification circuit, the rectification circuit is connected to
Between the input terminal of the mains supply and the voltage sampling circuit (13)；
The rectification circuit, for being DC voltage by the line voltage rectification for inputting the rectification circuit, and by the direct current
Voltage output is to the voltage sampling circuit (13)；
The voltage sampling circuit (13) is specifically used for：
Direct current is carried out to the DC voltage for inputting the voltage sampling circuit (13) to sample to obtain the second sampled voltage, and by described in
Second sampled voltage is exported to the microcontroller (11).
5. electromagnetic oven according to any one of claims 1 to 4, it is characterised in that further include alarm module, the alarm mould
Block is electrically connected with the microcontroller (11)；
The microcontroller (11) is additionally operable to：
Judge whether the line voltage value is more than the first predetermined threshold value, and whether the line voltage value is less than second and presets
Threshold value, first predetermined threshold value are more than second predetermined threshold value；
If the line voltage value is more than first predetermined threshold value, or the line voltage value is less than the described second default threshold
Value, then control the alarm module to alarm.
6. electromagnetic oven according to any one of claims 1 to 4, it is characterised in that the microcontroller (11) is additionally operable to, in institute
State control when electromagnetic oven is in holding state and close the display module (12).
7. electromagnetic oven according to any one of claims 1 to 4, it is characterised in that the microcontroller (11) is additionally operable to, in institute
State electromagnetic oven it is in running order when control the display module (12) it is described display screen display it is following at least one of：
Power, temperature and operating time.
8. electromagnetic oven according to any one of claims 1 to 4, it is characterised in that the display screen is flexible PCB.
A kind of 9. voltage display device, applied in household electrical appliance, it is characterised in that including：Microcontroller (11), display module
(12) and voltage sampling circuit (13)；
The display module (12) is electrically connected with the microcontroller (11), and the display module (12) includes being arranged on the family expenses
Display screen on electric appliance, the input terminal connection mains supply of the voltage sampling circuit (13), the voltage sampling circuit (13)
Output terminal be connected with the microcontroller (11)；
When the household electrical appliance are in open state and are introduced into working status, the voltage sampling circuit (13) is used for defeated
The line voltage for entering the voltage sampling circuit (13) is sampled to obtain sampled voltage, and the sampled voltage is exported to institute
State microcontroller (11)；
The microcontroller (11), for obtaining the corresponding line voltage value of the sampled voltage according to the sampled voltage, and controls
The display module (12) is made in line voltage value described in the display screen display.
10. voltage display device according to claim 9, it is characterised in that the microcontroller (11) is specifically used for：
According to the correspondence of default sample voltage value and line voltage value, the voltage sampling circuit (13) output is obtained
The corresponding line voltage value of the sampled voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721382586.8U CN207301735U (en) | 2017-10-25 | 2017-10-25 | Electromagnetic oven and voltage display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721382586.8U CN207301735U (en) | 2017-10-25 | 2017-10-25 | Electromagnetic oven and voltage display device |
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