CN207939778U - Power adjustable electromagnetic oven - Google Patents
Power adjustable electromagnetic oven Download PDFInfo
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- CN207939778U CN207939778U CN201820458738.6U CN201820458738U CN207939778U CN 207939778 U CN207939778 U CN 207939778U CN 201820458738 U CN201820458738 U CN 201820458738U CN 207939778 U CN207939778 U CN 207939778U
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- electromagnetic oven
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Abstract
The utility model discloses a kind of power adjustable electromagnetic oven comprising electromagnetic oven body and the control circuit for controlling the electromagnetic oven body work in the electromagnetic oven body, the control circuit include：Linear regulating circuit is used for exports coding signal, includes coding switch circuit and the rotation button for controlling coding switch circuit work that is set on the electromagnetic oven body；MCU is connect with the coding switch circuit with received encoded signal, and drives IGBT according to the encoded signal output pulse signal, to adjust the operating power of electromagnetic oven.The application is by rotating the work of button control coding switch circuit, so that coding switch circuit sends encoded signal to MCU, MCU drives IGBT according to the encoded signal output pulse signal received, with the operating power of linear regulation electromagnetic oven, i.e. the power adjustable electromagnetic oven of the application carries out power linear regulation and control by rotating button to electromagnetic oven, so that user can regulation power as needed, and adjust it is more rapid.
Description
Technical field
The utility model is related to household appliance technical fields, relate more specifically to a kind of power adjustable electromagnetic oven.
Background technology
Electromagnetic oven due to have many advantages, such as it is energy saving, quick, welcome by users using simplicity, become deep by joyous
The person cooks tool met.Existing commercially available electromagnetic oven is operated by being listed in each function/power button of control panel,
User generally believes cumbersome, regulation power inconvenience.Because in the prior art, electromagnetic oven connects on and off by changing power supply
The ratio of ETAD expected time of arrival and departure causes traditional electromagnetic oven scheme only to support the shelves of several power to change the mean power of a period of time
Position selection, between each gear between be divided into 200W or so, span is larger between each gear, user cannot as needed from
Row adjusts the power needed for it, i.e., traditional electromagnetic oven only supports power points, and when user can only be according to electromagnetic oven power point
It selects needed for oneself, such tradition electromagnetic oven scheme, which causes user, can not accurately select to heat required power.And such as
Fruit needs to drop to low grade from top grade, it is necessary to press and subtract power key several times, operation is very inconvenient, and not rapid enough when adjusting, easily
Cause the food paste bottom heated in electromagnetic oven.
In consideration of it, it is necessary to provide a kind of power adjustable electromagnetic ovens of linear adjustable power to solve drawbacks described above.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of power adjustable electromagnetic ovens of linear adjustable power.
In order to solve the above technical problems, the utility model provides a kind of power adjustable electromagnetic oven, the power adjustable electromagnetism
Stove includes electromagnetic oven body and the control for controlling the electromagnetic oven body work in the electromagnetic oven body
Circuit, the control circuit include：
Linear regulating circuit is used for exports coding signal, includes coding switch circuit and to be set to the electromagnetic oven sheet
The rotation button for controlling the coding switch circuit work on body；
MCU is connect with the coding switch circuit with received encoded signal, and exports pulse letter according to the encoded signal
Number driving IGBT, to adjust the operating power of electromagnetic oven.
Its further technical solution is：The coding switch circuit include code switch, first resistor, second resistance,
The rotation of 4th resistance and the 6th resistance, the rotation button drives the code switch work, wherein the first resistor
One end connect with power supply, the other end is connect with the second resistance, and the other end of the second resistance is connect with the MCU, institute
The one end for stating the 4th resistance is connect with power supply, and the other end is connect with the 6th resistance, the other end of the 6th resistance with it is described
MCU connections, the first pin in three pins of the code switch are connect with the first resistor and second resistance, third pin
It is connect with the 4th resistance and the 6th resistance, second pin ground connection.
Its further technical solution is：The coding switch circuit further includes having the 9th capacitance and the tenth capacitance, and described
One end of nine capacitances is connected to one end that the second resistance is connect with MCU, other end ground connection, one end of the tenth capacitance
It is connected to one end that the 6th resistance is connect with MCU, other end ground connection.Based on the design, the 9th capacitance and the tenth
The absorbable corresponding current spikes of storage of capacitance are to realize stabilization function.
Its further technical solution is：The MCU is also associated with current detection circuit and voltage surge detection circuit.
Its further technical solution is：The MCU is also associated with one for showing the power adjustable electromagnetic oven work shape
The OLED display of state.
Its further technical solution is：The MCU is connected with a temperature for detecting the power adjustable electromagnetic oven temperature
Spend detector.
Its further technical solution is：The MCU is connected with a buzzer.
Its further technical solution is：Dissipating for the power adjustable electromagnetic oven heat radiation is equipped in the electromagnetic oven body
Air-heater, the MCU are connect with cooling fan to control cooling fan work.
Compared with prior art, the utility model is by rotating the work of button control coding switch circuit so that coding is opened
Powered-down road sends encoded signal to MCU, and MCU drives IGBT according to the encoded signal output pulse signal received, linearly to adjust
The operating power of electromagnetic oven is saved, i.e. the power adjustable electromagnetic oven of the utility model carries out power line by rotating button to electromagnetic oven
Property regulation and control so that user can regulation power as needed, and adjust it is more rapid.
Description of the drawings
Fig. 1 is the structure diagram of one specific embodiment of the application power adjustable electromagnetic oven.
Fig. 2 is the circuit diagram of one specific embodiment of coding switch circuit in the application power adjustable electromagnetic oven.
Fig. 3 is that the waveform diagram that MCU is input to when button rotates counterclockwise is rotated in the application power adjustable electromagnetic oven.
Fig. 4 is that the waveform diagram that MCU is input to when button rotates clockwise is rotated in the application power adjustable electromagnetic oven.
Specific implementation mode
To make those skilled in the art that the purpose of this utility model, technical solution and excellent be more clearly understood
Point is further elaborated the application below in conjunction with drawings and examples.
Referring to Fig.1, Fig. 1 is the structure diagram of 100 1 specific embodiment of the application power adjustable electromagnetic oven.The power can
Adjust electromagnetic oven 100 include：Electromagnetic oven body and in the electromagnetic oven body for controlling the electromagnetic oven body
The control circuit 101 of work, the control circuit 101 include：Linear regulating circuit 1010 is used for exports coding signal, packet
It includes coding switch circuit 1012 and is set on the electromagnetic oven body and be used to control 1012 work of the coding switch circuit
The rotation button 1013 of work；MCU 1011 is connect with the coding switch circuit 1012 with received encoded signal, and according to described
Encoded signal output pulse signal drives IGBT 102 (Insulated Gate BipolarTransistor, insulated gate bipolar
Transistor npn npn), to adjust the operating power of electromagnetic oven 100.Preferably, in the present embodiment, the MCU 1011 selects 16 to determine
When device single pulse mode singlechip chip, compared with using 8 bit timing devices, may make output pulse resolution higher so that
Pulse width modulation is more accurate.Based on above-mentioned design, the utility model can rotate button 1013 by rotation, and then control and compile
Code switch circuit 1012 works, so that coding switch circuit 1012 sends encoded signal to MCU 1011, MCU 1011 is according to institute
The encoded signal output pulse signal of reception carrys out linear regulation operating power to IGBT 102 so that user can be adjusted as needed
Power, and adjust more rapid.
It is 1,012 1 specific embodiment of coding switch circuit in the application power adjustable electromagnetic oven 100 with reference to Fig. 2, Fig. 2
Circuit diagram.By attached drawing it is found that the coding switch circuit 1012 includes code switch SW1, first resistor R1, the second electricity
Hinder R2, the 4th resistance R4, the 6th resistance R6, the 9th capacitance C9 and the tenth capacitance C10, the rotation band of the rotation button 1013
Dynamic code switch SW1 work.Wherein, one end of the first resistor R1 is connect with power supply, the other end and the second resistance R2
Connection, the other end of second resistance R2 are connect with the MCU 1011 and the 9th capacitance C9, the other end of the 9th capacitance C9
Ground connection；One end of 4th resistance R4 is connect with power supply, and the other end is connect with the 6th resistance R6, and the 6th resistance R6's is another
End is connect with the MCU 1011 and the tenth capacitance C10；The other end of tenth capacitance C10 is grounded；The code switch SW1 tri-
The first pin 1 in a pin is connect with the first resistor R1 and second resistance R2, third pin 3 and the 4th resistance R4
And the 6th resistance R6 connection, second pin 2 are grounded.Preferably, the code switch SW1 of model EC11 is selected in the present embodiment.
In the prior art, intermediate second pin 2 is normally in tri- pins of EC11 code switch SW1 to be grounded, and 1 He of the first pin
3 pull-up resistor of third pin just has coding to believe when code switch SW1 left or right rotations in the first pin 1 and third pin 3
It number outputs.In the present embodiment, the concentric simultaneously mechanical communication of central shaft of the central shaft and code switch SW1 that rotate button 1013,
Rotation button 1013 drives code switch SW1 to rotate with one heart when rotating, and code switch SW1 generates encoded signal and is sent to MCU
1011, MCU 1011 according to the encoded signal output pulse signal received to IGBT 102 come linear regulation operating power, and
The angle that MCU 1011 can be rotated according to rotation button 1013 realizes the adjusting of power, that is, rotates the angle of the rotation of button 1013 not
Together, required operating power is also different therewith.
In the present embodiment, as shown in the picture, wherein C-terminal is connection power end, and SW1 is code switch, when SW1 is counterclockwise
When rotation, signal flow direction is power supply C → R1 → ends R2 → A, is defined as circuit 1, the power supply C → R4 → ends R6 → B is determined
Justice is circuit 2, and the absorbable corresponding current spikes of storage of the 9th capacitance C9 and the tenth capacitance C10 are to realize stabilization work(
Can, while the ends A and the output signal at the ends B in circuit 2 are transferred to MCU 1011 in circuit 1, MCU 1011 is by judging the ends A and B
The output signal at end come judge rotate button 1013 rotate clockwise or counterclockwise rotation, and then judge be increase power or
Reduce power, to realize the linear adjustable of power.
It is respectively rotation 1013 inverse time of button in the application power adjustable electromagnetic oven 100 with reference to Fig. 3 and Fig. 4, Fig. 3 and Fig. 4
Needle rotates and is input to when rotating clockwise the waveform diagram of MCU 1011.When general mcu programming, it can be seen with oscillograph
The phase difference of two output end output signals is examined to judge that code switch SW1 is rotation clockwise or to side counterclockwise
To rotation, when the waveform of the ends A output be located at it is lower jump along when, the waveform of the ends B output is low level, at this moment can determine that code switch
SW1 is to rotate clockwise；And when the waveform of the ends A output be located at it is lower jump along when, the waveform at the ends B is high level, at this moment may be used
Judge that code switch SW1 is to rotate counterclockwise.
Drive the code switch SW1 to work because rotating the rotation button 1013 in the application, then it can in the present embodiment
Judge the side of the rotation rotation of button 1013 by judging the output waveform variation of two output ends in coding switch circuit 1012
To, and the direction that rotation button 1013 rotates can be defined according to functional requirement, you can it is fixed to rotate clockwise rotation button 1013
Justice is that power " adds " function, and the rotation counterclockwise of rotation button 1013, which is defined as power, " subtracts " function, or will rotate button
1013 rotate clockwise and are defined as power and " subtract " function, will rotation button 1013 rotation is defined as power and " adds " function counterclockwise,
And the number of square wave can determine whether the angle of rotation in figure, the precision for rotating button 1013 and code switch SW1 can be according to user's need
It asks and makes different specifications.As soon as example, being exported for signal with 15 °, rotation button 1013 often rotates 15 ° of code switch SW1
A square wave is exported, in 100 adjusting power of electromagnetic oven, rotation button 1013 rotates a circle code switch SW1 rotation button 1013
Output is 360 °/15 °=24 square waves, if the power of electromagnetic oven is up to 2100W, be can be achieved less than mono- shelves of 100W,
It may make power difference smaller between electromagnetic oven gear.
In some other embodiments, the MCU 1011 is also associated with current detection circuit and voltage surge detection circuit
107, to realize the overcurrent protection of integrated circuit in the power adjustable electromagnetic oven 100.The electromagnetic oven current detection circuit and
Voltage surge detection circuit 107 is well known to those skilled in the art, and details are not described herein.
With continued reference to Fig. 1, in certain embodiments, the MCU 1011 is also associated with one for showing the power adjustable
The OLED display 103 of 100 working condition of electromagnetic oven, to facilitate user to check, the electromagnetic oven is in " chafing dish " or " quick-fried "
Etc. functions, and the operating power of the electromagnetic oven 100 can be shown, to facilitate user can be adjusted as needed.
In certain embodiments, the MCU 1011 is connected with a hygrosensor 104, and being used to detect the power can
Adjust the temperature of electromagnetic oven 100.Preferably, one is equipped in the electromagnetic oven body as the power adjustable electromagnetic oven 100 heat dissipation
Cooling fan 106, the MCU 1011 are connect with cooling fan 106 to control the cooling fan 106 work, when the power can
After adjusting electromagnetic oven 100 to be stopped, the cooling fan 106 can help its fast cooling.
In certain embodiments, the MCU 1011 is connected with a buzzer 105, is used to work as power regulation to user
Sounding when required power, to remind user.
100 course of work of power adjustable electromagnetic oven of the application is as follows：
User rotates rotation button 1013, and then drives code switch SW1 Concentric rotations, and code switch SW1 generates coding
Signal, and encoded signal is sent to by MCU 1011 by the side a and b of coding switch circuit 1012, MCU 1011 is according to next
Judge that code switch SW1 is to rotate or rotate counterclockwise clockwise from the encoded signal of side a and b, works as A
The waveform of end output be located at it is lower jump along when, the waveform at the ends B is high level, then can determine that code switch SW1 is counterclockwise
Rotation, and when the waveform of the ends A output be located at it is lower jump along when, the waveform at the ends B is low level, then can determine that code switch SW1 be to
It is rotated clockwise, linear regulation is carried out in the direction for rotation button 1013 rotation that MCU 1011 can be pre-defined according to functional requirement
The operating power of electromagnetic oven 100.
In conclusion the utility model is worked by rotating button control coding switch circuit so that coding switch circuit
Encoded signal is sent to MCU, MCU drives IGBT according to the encoded signal output pulse signal received, with linear regulation electromagnetism
The operating power of stove, i.e. the power adjustable electromagnetic oven of the utility model carry out power linear tune by rotating button to electromagnetic oven
Control so that user can regulation power as needed, and adjust it is more rapid.
The above is only the preferred embodiment of the present invention, rather than does limit in any form to the utility model
System.Those skilled in the art can impose various equivalent changes and improvement on the basis of the above embodiments, all to be wanted in right
The equivalent variations done in range or modification are asked, should fall within the protection scope of this utility model.
Claims (8)
1. a kind of power adjustable electromagnetic oven, the power adjustable electromagnetic oven includes electromagnetic oven body and is set to the electromagnetic oven
The intrinsic control circuit for controlling electromagnetic oven body work, which is characterized in that the control circuit includes：
Linear regulating circuit is used for exports coding signal, includes coding switch circuit and to be set on the electromagnetic oven body
The rotation button for controlling coding switch circuit work；
MCU is connect with the coding switch circuit with received encoded signal, and is driven according to the encoded signal output pulse signal
Dynamic IGBT, to adjust the operating power of electromagnetic oven.
2. power adjustable electromagnetic oven as described in claim 1, it is characterised in that：The coding switch circuit includes that coding is opened
The rotation of pass, first resistor, second resistance, the 4th resistance and the 6th resistance, the rotation button drives the code switch
Work, wherein one end of the first resistor is connect with power supply, and the other end is connect with the second resistance, the second resistance
The other end is connect with the MCU, and one end of the 4th resistance is connect with power supply, and the other end is connect with the 6th resistance, should
The other end of 6th resistance is connect with the MCU, the first pin in three pins of the code switch and the first resistor
And second resistance connection, third pin are connect with the 4th resistance and the 6th resistance, second pin ground connection.
3. power adjustable electromagnetic oven as claimed in claim 2, it is characterised in that：The coding switch circuit further includes having the 9th
One end of capacitance and the tenth capacitance, the 9th capacitance is connected to one end that the second resistance is connect with MCU, another termination
The one end on ground, the tenth capacitance is connected to one end that the 6th resistance is connect with MCU, other end ground connection.
4. power adjustable electromagnetic oven as described in claim 1, it is characterised in that：The MCU is also associated with current detection circuit
And voltage surge detection circuit.
5. power adjustable electromagnetic oven as described in claim 1, it is characterised in that：The MCU is also associated with one for showing institute
State the OLED display of power adjustable electromagnetic oven working condition.
6. power adjustable electromagnetic oven as described in claim 1, it is characterised in that：It is described for detecting that the MCU is connected with one
The hygrosensor of power adjustable electromagnetic oven temperature.
7. power adjustable electromagnetic oven as described in claim 1, it is characterised in that：The MCU is connected with a buzzer.
8. power adjustable electromagnetic oven as described in claim 1, it is characterised in that：Equipped with one it is described in the electromagnetic oven body
The cooling fan of power adjustable electromagnetic oven heat radiation, the MCU are connect with cooling fan to control cooling fan work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820458738.6U CN207939778U (en) | 2018-03-30 | 2018-03-30 | Power adjustable electromagnetic oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820458738.6U CN207939778U (en) | 2018-03-30 | 2018-03-30 | Power adjustable electromagnetic oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207939778U true CN207939778U (en) | 2018-10-02 |
Family
ID=63656469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820458738.6U Expired - Fee Related CN207939778U (en) | 2018-03-30 | 2018-03-30 | Power adjustable electromagnetic oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207939778U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109140540A (en) * | 2018-07-19 | 2019-01-04 | 广东瑞德智能科技股份有限公司 | A kind of electromagnetic stove of full angle manipulation |
| CN112274851A (en) * | 2020-10-12 | 2021-01-29 | 北京金史密斯科技有限公司 | Treadmill speed adjusting method and device, storage medium and treadmill |
-
2018
- 2018-03-30 CN CN201820458738.6U patent/CN207939778U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109140540A (en) * | 2018-07-19 | 2019-01-04 | 广东瑞德智能科技股份有限公司 | A kind of electromagnetic stove of full angle manipulation |
| CN109140540B (en) * | 2018-07-19 | 2019-11-05 | 广东瑞德智能科技股份有限公司 | A kind of electromagnetic stove of full angle manipulation |
| CN112274851A (en) * | 2020-10-12 | 2021-01-29 | 北京金史密斯科技有限公司 | Treadmill speed adjusting method and device, storage medium and treadmill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181002 Termination date: 20200330 |