CN209610940U - Cooking machine control circuit and cooking machine - Google Patents
Cooking machine control circuit and cooking machine Download PDFInfo
- Publication number
- CN209610940U CN209610940U CN201822195929.0U CN201822195929U CN209610940U CN 209610940 U CN209610940 U CN 209610940U CN 201822195929 U CN201822195929 U CN 201822195929U CN 209610940 U CN209610940 U CN 209610940U
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- control circuit
- circuit board
- cooking machine
- alternating current
- load
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- 238000010411 cooking Methods 0.000 title claims abstract description 44
- 238000001514 detection method Methods 0.000 claims abstract description 22
- 230000005611 electricity Effects 0.000 claims description 16
- 239000003990 capacitor Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 4
- 235000013305 food Nutrition 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 235000010469 Glycine max Nutrition 0.000 description 1
- 244000068988 Glycine max Species 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Food-Manufacturing Devices (AREA)
Abstract
The application provides a food processor control circuit and a food processor, wherein the food processor comprises a base and a food processing cup arranged on the base, and the food processor control circuit is arranged in the base; the food processor control circuit comprises a power switch connected with the mains supply input end and a control circuit board electrically connected with the power switch, a mains supply zero-crossing detection circuit is arranged between the power switch and the control circuit board, and the control circuit board drives the load to work; when the commercial power zero-crossing detection circuit does not detect the zero-crossing signal in the first preset time t1, the circuit is judged to be in a power-down state, the control circuit board cuts off the load and keeps the working state for a time t2, and if the control circuit board cuts off the load and continuously exceeds the second preset time t3, the control circuit board is restored to a standby state. This application is through setting up commercial power zero passage detection circuit whether stable in order to detect commercial power voltage, cuts down the load when detecting the cooking machine short-term power failure to make the cooking machine can not reset because voltage is low excessively, promoted the convenience of product use.
Description
Technical field
The utility model relates to small household appliances field more particularly to a kind of cooking machine control circuit and cooking machines.
Background technique
In working condition, encounter mains fluctuation or unstable or socket has household small household appliances traditional at present
Usually all be to be directly entered standby mode when loosening leads to of short duration poor contact, after waiting voltage stabilizations or socket to be plugged again by
Restart work according to the program of machine design originally.This will cause biggish inconvenience for using, especially as soy bean milk making machine, material
The small household appliances such as reason machine, wall-breaking machine, requirement of the corresponding process control of different function for the time be it is more stringent, if working
Restart again according to blas after a period of time, will cause the overprocessing of food materials, influences mouthfeel or nutrition, serious feelings
Condition will appear phenomena such as being sticking, and bring some inconvenience to using.
Utility model content
The utility model provides a kind of cooking machine control circuit and cooking machine.
According to a first aspect of the present application, a kind of cooking machine control circuit is provided, including the electricity connecting with mains electricity input end
Source switch and the control circuit board being electrically connected with power switch are equipped with alternating current zero passage between the power switch and circuit control panel
Detection circuit, the control circuit board drive loaded work piece；When the alternating current zero cross detection circuit is in the first preset duration t1
It is power-down state that zero cross signal decision circuitry, which is not detected, and control circuit board cuts off driven load and working condition is kept to hold
Continuous t2 duration, if it is more than the second preset duration t3 that control circuit board, which cuts off driven load continuous, control circuit board is restored
To standby mode.
Further, the first preset duration t1 >=100ms.
Further, the control circuit board cuts off driven load and working condition is kept to continue t2 duration satisfaction
0.5s < t2≤2s.
Further, the second preset duration t3 > 2s.
Further, the alternating current zero cross detection circuit include the photoelectrical coupler being connect with mains electricity input end and with it is described
The triode of photoelectrical coupler connection, the photoelectrical coupler conducting, the collector of the triode when alternating current is in access
It is fed back to line voltage for low level to stablize, when alternating current is in open circuit, the photoelectrical coupler is hanging, the collection of the triode
Electrode is that high level is fed back to power down.
Further, the control circuit board is equipped with single-chip microcontroller, and the input terminal of the single-chip microcontroller is connected to triode
Collector is judged as power-down state when the input terminal of single-chip microcontroller is high level and continues the first preset duration t1.
Further, the alternating current zero cross detection circuit detects the low and high level of a single-chip microcomputer input at interval of 1ms,
When the input terminal for detecting single-chip microcontroller after being judged as power-down state again is low level, control circuit board drives load to protect again
Hold working condition.
Further, the control circuit board is equipped with capacitor, and the capacitor is driven negative in control circuit board cutting
The control circuit board is supplied electricity to when load makes it keep working condition.
Further, the load includes at least motor, heating device, the control panel being electrically connected with control circuit board.
According to a second aspect of the present application, a kind of cooking machine is provided, including base and is set to the cooking cup of base, it is described
Cooking machine control circuit as described above is equipped in base.
By above technical scheme as it can be seen that the utility model between power switch and circuit control panel by being arranged alternating current mistake
Whether zero detection circuit is stable to detect line voltage, when cooking machine detects that alternating current is unstable or in short-term in the operational mode
When power down, load can be closed by circuit control panel, to make circuit control panel not reset because of brownout, i.e.,
Guarantee that the spread of voltage cooking machine of short time will not enter standby mode, improves the convenience that product uses.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The utility model can be limited.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without any creative labor, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is the three-dimensional assembling schematic diagram of one embodiment cooking machine of the application；
Fig. 2 is the connection schematic diagram of one embodiment cooking machine control circuit of the application；
Fig. 3 is the connection schematic diagram of one embodiment cooking machine alternating current zero cross detection circuit of the application；
Fig. 4 is the zero passage port waveform diagram of one embodiment alternating current zero cross detection circuit of the application.
Appended drawing reference:
Cooking machine 100
Base 1 arranges cup 2
Cooking machine control circuit 3
30 control circuit board of power switch, 31 alternating current zero cross detection circuit 32
33 triode 34 of photoelectrical coupler
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the utility model.On the contrary, they be only with such as
The example of the consistent device and method of some aspects be described in detail in the appended claims, the utility model.
It is only to be not intended to be limiting this reality merely for for the purpose of describing particular embodiments in the term that the utility model uses
With novel.In the "an" of the utility model and singular used in the attached claims, " described " and "the"
Most forms are intended to include, unless the context clearly indicates other meaning.It is also understood that term used herein " and/
Or " refer to and include that one or more associated any or all of project listed may combine.
It will be appreciated that though various information may be described using term first, second, third, etc. in the utility model,
But these information should not necessarily be limited by these terms.These terms are only used to for same type of information being distinguished from each other out.For example, not
In the case where being detached from the scope of the utility model, the first information can also be referred to as the second information, and similarly, the second information can also be with
The referred to as first information.Depending on context, word as used in this " if " can be construed to " ... when " or
" when ... " or " in response to determination ".
With reference to the accompanying drawing, a kind of cooking machine control circuit of the utility model and cooking machine are described in detail.In
In the case where not conflicting, the feature in following embodiment and embodiment be can be combined with each other.
It please refers to shown in Fig. 1 to 4, a kind of cooking machine 100 of the application, including base 1 and is set to the cooking cup 2 of base 1,
Cooking machine control circuit 3 is equipped in the base 1.It is equipped with motor in the base 1, is equipped with and the electricity in the cooking cup 2
The pulverizing blade member of machine rotation connection.
The cooking machine control circuit 3, including the power switch 30 that is connect with mains electricity input end and with 30 electricity of power switch
The control circuit board 31 of connection is equipped with alternating current zero cross detection circuit 32 between the power switch 30 and control circuit board, described
Control circuit board 31 drives loaded work piece；When the alternating current zero cross detection circuit 32 was not detected in the first preset duration t1
Zero-signal decision circuitry is power-down state, when control circuit board 31 cuts off driven load and working condition is kept to continue t2
Long, if it is more than the second preset duration t3 that control circuit board 31, which cuts off driven load continuous, control circuit board 31 is restored extremely
Standby mode.The load includes at least motor, heating device, control panel, the anti-overflow dress being electrically connected with control circuit board 31
It sets.The application is by being arranged alternating current zero cross detection circuit 32 between power switch 30 and control circuit board 31 to detect alternating current
Whether voltage is stable, when cooking machine detects unstable alternating current or short time power down in the operational mode, can pass through control
Load motor, heating device, control panel, anti-overflow device etc. are turned off by circuit board 31, to make control circuit board 31 will not
It is resetted because of brownout, i.e., the spread of voltage cooking machine of guarantee short time will not enter standby mode, improve product
The convenience used.
In one embodiment, the alternating current zero cross detection circuit 32 includes the photoelectrical coupler 33 connecting with mains electricity input end
And the triode 34 being connect with the photoelectrical coupler 33.When alternating current is in access, the photoelectrical coupler 33 is connected, described
The current collection of triode 34 extremely low level is fed back to line voltage and stablizes；When alternating current is in open circuit, the photoelectrical coupler 33 is outstanding
The current collection extremely high level of sky, the triode 34 is fed back to power down.
Specifically, the control circuit board 31 is equipped with single-chip microcontroller, the input terminal of the single-chip microcontroller is connected to triode 34
Collector, when the input terminal of single-chip microcontroller is high level and while continuing the first preset duration t1 is judged as power-down state.
The alternating current zero cross detection circuit 32 detects the low and high level of a single-chip microcomputer input at interval of 1ms, is judging
When to detect that the input terminal of single-chip microcontroller is low level after power-down state again, control circuit board 31 drives load to keep work again
Make state until work terminates.
The control circuit board 31 is equipped with capacitor, and the capacitor is supplied when control circuit board 31 cuts off driven load
Supplying electricity to the control circuit board 31 makes it keep working condition.
The first preset duration t1 >=100ms.
The control circuit board 31, which cuts off driven load and working condition is kept to continue t2 duration, meets 0.5s < t2
≤2s.So when cooking machine guarantees in the operating condition when the inner machine power down of 0.5-2 second, control circuit board 31 still can be according to
Normal work is carried out by the electricity of capacitor storage not reset, i.e., does not enter standby mode, improve the spirit that product uses
Activity and convenience.
The second preset duration t3 > 2s.Single-chip microcontroller is detected when alternating current zero cross detection circuit 32 continues t3 duration
Input terminal is high level, i.e., it is more than the second preset duration t3 that control circuit board 31, which cuts off driven load continuous, illustrates to arrange
It includes that power failure or socket loosen that the case where true power down, which occurs, in machine, the monolithic processor resetting after electric quantity consumption of capacitor is complete
Cooking machine is set to enter standby mode.
The structure of herein described alternating current zero cross detection circuit 32 is described in detail below: the zero firewire input of alternating current
End is connect through pressure-sensitive wait of overprotection circuit protective tube with the input terminal of photoelectrical coupler 33, the output end connection of photoelectrical coupler 33
To ground terminal of the alternating current after over commutation, current-limiting resistance is provided between the output end and triode 34 of the photoelectrical coupler 33
R3 and pressure limiting resistance R4, the base stage of the triode 34 are connected between the current-limiting resistance R3 and pressure limiting resistance R4, and described three
The collector of pole pipe 34 is connected to the input terminal of single-chip microcontroller, and the collector of the triode 34 is equipped with pull-up resistor R5, and described three
The emitter of pole pipe 34 is connected to ground terminal of the alternating current after over commutation.
When voltage is gradually increased to flow through the electric current of photoelectrical coupler 33 greater than its conducting electric current after alternating current zero passage, light
Electric coupler 33 is connected；The triode 34 is connected at this time, the input terminal of single-chip microcontroller is pulled to be depressured by Switching Power Supply after
Ground terminal, be low level.Conversely, photoelectrical coupler 33 is vacantly not turned on when alternating current power down, the corresponding triode 34
It is not turned on, therefore the input terminal of single-chip microcontroller is pulled to+5V, is high level.Therefore the low and high level of the input terminal of single-chip microcontroller can be passed through
State is to determine whether power down and line voltage are stable.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent substitution, improvement and etc. done should be included in the utility model
Within the scope of protection.
Claims (10)
1. a kind of cooking machine control circuit, which is characterized in that including power switch (30) Ji Yu electricity being connect with mains electricity input end
The control circuit board (31) of source switch (30) electrical connection, is equipped with alternating current between the power switch (30) and control circuit board (31)
Zero cross detection circuit (32), the control circuit board (31) drive loaded work piece；As alternating current zero cross detection circuit (32) In
It is power-down state that zero cross signal decision circuitry is not detected in first preset duration t1, and control circuit board (31) cutting is driven
It loads and working condition is kept to continue t2 duration, if it is more than second default that control circuit board (31), which cuts off driven load continuous,
Duration t3, then control circuit board (31) is restored to standby mode.
2. cooking machine control circuit according to claim 1, which is characterized in that the first preset duration t1 >=100ms.
3. cooking machine control circuit according to claim 2, which is characterized in that control circuit board (31) cutting is driven
Dynamic load simultaneously keeps working condition to continue t2 duration meeting 0.5s < t2≤2s.
4. cooking machine control circuit according to claim 3, which is characterized in that the second preset duration t3 > 2s.
5. cooking machine control circuit according to any one of claims 1 to 4, which is characterized in that the alternating current zero passage detection
Circuit (32) includes the photoelectrical coupler (33) connecting with mains electricity input end and three poles connecting with the photoelectrical coupler (33)
It manages (34), photoelectrical coupler (33) conducting, the current collection extremely low level of the triode (34) when alternating current is in access
Line voltage is fed back to stablize, when alternating current is in open circuit the photoelectrical coupler (33) vacantly, the collection of the triode (34)
Electrode is that high level is fed back to power down.
6. cooking machine control circuit according to claim 5, which is characterized in that the control circuit board (31) is equipped with single
Piece machine, the input terminal of the single-chip microcontroller are connected to the collector of triode (34), when the input terminal of single-chip microcontroller is high level and is held
It is judged as power-down state when continuous first preset duration t1.
7. cooking machine control circuit according to claim 6, which is characterized in that the alternating current zero cross detection circuit (32) is every
It is spaced the low and high level that 1ms detects a single-chip microcomputer input, detects the defeated of single-chip microcontroller again after being judged as power-down state
Enter end be low level when, control circuit board (31) drive again load holding working condition.
8. according to claim 1 to 4 any one or cooking machine control circuit described in 6 or 7, which is characterized in that the control electricity
Road plate (31) is equipped with capacitor, and the capacitor supplies electricity to the control electricity when control circuit board (31) cut off driven load
Road plate (31) makes it keep working condition.
9. cooking machine control circuit according to claim 6, which is characterized in that the load includes at least and control circuit
Motor, the heating device, control panel of plate (31) electrical connection.
10. a kind of cooking machine, which is characterized in that including base (1) and be set to the cooking cup (2) of base (1), the base
(1) cooking machine control circuit as described in any one of claim 1 to 9 is equipped in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822195929.0U CN209610940U (en) | 2018-12-26 | 2018-12-26 | Cooking machine control circuit and cooking machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822195929.0U CN209610940U (en) | 2018-12-26 | 2018-12-26 | Cooking machine control circuit and cooking machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209610940U true CN209610940U (en) | 2019-11-12 |
Family
ID=68447092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822195929.0U Active CN209610940U (en) | 2018-12-26 | 2018-12-26 | Cooking machine control circuit and cooking machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209610940U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113391572A (en) * | 2020-03-12 | 2021-09-14 | 浙江苏泊尔家电制造有限公司 | Control method and control circuit for cooking appliance and cooking appliance |
-
2018
- 2018-12-26 CN CN201822195929.0U patent/CN209610940U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113391572A (en) * | 2020-03-12 | 2021-09-14 | 浙江苏泊尔家电制造有限公司 | Control method and control circuit for cooking appliance and cooking appliance |
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