CN208337449U - Food processor motor drive circuit and food processor comprising same - Google Patents
Food processor motor drive circuit and food processor comprising same Download PDFInfo
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- CN208337449U CN208337449U CN201820927949.XU CN201820927949U CN208337449U CN 208337449 U CN208337449 U CN 208337449U CN 201820927949 U CN201820927949 U CN 201820927949U CN 208337449 U CN208337449 U CN 208337449U
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- 238000010411 cooking Methods 0.000 claims abstract description 44
- 238000001514 detection method Methods 0.000 claims abstract description 23
- 230000002457 bidirectional effect Effects 0.000 claims description 25
- 230000005611 electricity Effects 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 9
- 230000003287 optical effect Effects 0.000 claims 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 10
- 238000010586 diagram Methods 0.000 description 10
- 229910052710 silicon Inorganic materials 0.000 description 10
- 239000010703 silicon Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 4
- 230000003111 delayed effect Effects 0.000 description 2
- 244000068988 Glycine max Species 0.000 description 1
- 235000010469 Glycine max Nutrition 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000013372 meat Nutrition 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
- 235000009566 rice Nutrition 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Food-Manufacturing Devices (AREA)
Abstract
The application provides a cooking machine motor drive circuit and including this motor drive circuit's cooking machine. The motor driving circuit comprises a zero-crossing detection circuit, a controller and a motor control circuit. The zero-crossing detection circuit is connected with the alternating current power supply, detects the zero crossing point of alternating current output by the alternating current power supply and generates a zero-crossing point signal. The controller is connected with the zero-crossing detection circuit and receives a zero-crossing signal of the zero-crossing detection circuit, and in one period of the alternating current, the controller sends a motor control signal for driving the motor when the amplitude of the alternating current is smaller than a peak value. And the motor control circuit is connected with the motor and is connected with the alternating current power supply. The motor control circuit is connected with the controller, receives a motor control signal of the controller and drives the motor to work.
Description
Technical field
This application involves small household appliances field more particularly to a kind of cooking machine motor-drive circuit and including motor driven electricity
The cooking machine on road.
Background technique
With the increasingly raising of people's living standard, occur many different types of cooking machines in the market.Cooking machine
Function mainly may include, but be not limited to, and beats soya-bean milk, squeezed juice, cooks rice paste, meat cutter, water ice, coffee processed and/or allotment face
The functions such as film.The small household appliances of current electronic class, generally control motor speed by way of copped wave.In some cases, electric
Motor is switched to alternating current at the wave crest or trough of alternating current by drive circuit, at this time motor from must not electricity condition moment turn
The high voltage for turning to wave crest or trough is easy to cause the shake of motor.
Utility model content
The application provides a kind of cooking machine motor-drive circuit and the cooking machine including the motor-drive circuit, keeps motor steady
It is fixed efficiently to work.
The one aspect of the application provides a kind of cooking machine motor-drive circuit.The cooking machine motor-drive circuit includes:
Zero cross detection circuit is connect with AC power source, and the zero crossing of the alternating current of detection AC power source output generates crossover point signal；
Controller, the controller connect with the zero cross detection circuit and receive the crossover point signal of the zero cross detection circuit,
In a cycle of alternating current, the controller issues the motor control letter of driving motor when the amplitude of alternating current is less than peak value
Number；And circuit for controlling motor, it is connected to motor, and connect with the AC power source, the circuit for controlling motor and the control
Device connection, receives the motor control signal of the controller, and the motor is driven to work.
Further, in a cycle of alternating current (T), the time etc. of the circuit for controlling motor driving motor work
In the half period of alternating current
Further, the circuit for controlling motor includes bidirectional triode thyristor device, is connected with the motor, and with the friendship
The connection of galvanic electricity source.
Further, the bidirectional triode thyristor devices in series is between the firewire and the motor of the AC power source.
Further, the circuit for controlling motor includes optocoupler, and the optocoupler is parallel to described two-way controllable
It silicon device and is connect with the controller.
Further, the optocoupler includes light emitting diode, anode and the controller of the light emitting diode
Connection.
Further, the cooking machine motor-drive circuit further includes rectifier bridge, the rectifier bridge connection AC power source
The anode of firewire and motor, and connect the zero curve of AC power source and the cathode of motor.
Further, the rectifier bridge is connected between bidirectional triode thyristor device and motor.
Further, the rectifier bridge is single-phase rectification bridge.
The application also provides a kind of cooking machine comprising: host, including motor and aforementioned cooking machine motor-drive circuit,
The cooking machine motor-drive circuit is connect with the motor；And stirring cup, it is removably installed on the host.
The circuit for controlling motor of the application issues the motor control letter of driving motor when the amplitude of alternating current is less than peak value
Number, so avoidable motor obtains electric in the wave crest and/or trough of alternating current, to reduce the shake of motor, ensure that simultaneously
Motor obtains the electric time with enough, and motor is enable to stablize and efficiently work.
Detailed description of the invention
Fig. 1 show the schematic block diagram of one embodiment of the application cooking machine motor-drive circuit；
Fig. 2 show the circuit diagram of one embodiment of the circuit for controlling motor of the application cooking machine motor-drive circuit；
Fig. 3 show motor and obtains electric waveform diagram in the wave crest and trough of alternating current；
The motor that Fig. 4 show the application obtains the waveform diagram of electric one embodiment；
The motor that Fig. 5 show the application obtains the waveform diagram of another electric embodiment；
Fig. 6 show the flow chart of one embodiment of the application cooking machine driving method；
Fig. 7 show the perspective view of one embodiment of the application cooking machine.
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 application.On the contrary, they be only with it is such as appended
The example of the consistent device of some aspects be described in detail in claims, the application.
It is only to be not intended to be limiting the application merely for for the purpose of describing particular embodiments in term used in this application.
Unless otherwise defined, technical term or scientific term used in this application, which are should be in fields of the present invention, has general skill
The ordinary meaning that the personage of energy is understood." first " " second " and class used in present specification and claims
As word be not offered as any sequence, quantity or importance, and be used only to distinguish different component parts.Equally, " one
It is a " or the similar word such as " one " do not indicate that quantity limits yet, but indicate that there are at least one." multiple " or " several " table
Show two and two or more.The similar word such as " comprising " or "comprising" means to appear in the member before " comprising " or "comprising"
Part or object are covered the element for appearing in " comprising " or "comprising" presented hereinafter or object and its are equal, it is not excluded that its
His element or object." connection " either the similar word such as " connected " is not limited to physics or mechanical connection, and
And may include electrical connection, it is either direct or indirect.In present specification and the appended claims
The "an" of used singular, " described " and "the" are also intended to including most forms, unless context clearly shows that
Other meanings.It is also understood that term "and/or" used herein refers to and includes one or more associated to list item
Purpose any or all may combine.
The cooking machine motor-drive circuit of the embodiment of the present application includes zero cross detection circuit, controller and motor control electricity
Road.Zero cross detection circuit is electrically connected to AC power source, and zero cross detection circuit detection exchanges the zero point of the alternating current of electricity output and production
Raw crossover point signal.Controller connect with the zero cross detection circuit and receives the crossover point signal of the zero cross detection circuit,
In a cycle of alternating current, the controller issues the motor control of driving motor when the amplitude of alternating current is less than peak value
Signal.Circuit for controlling motor is connected to motor, and connect with AC power source, and circuit for controlling motor connect with controller and receives electricity
Machine control signal drives the motor to work according to motor control signal.Circuit for controlling motor is less than peak in the amplitude of alternating current
Issue the motor control signal of driving motor when value, so avoidable motor obtained in the wave crest and/or trough of alternating current it is electric, from
And the shake of motor is reduced, while ensure that motor obtains the electric time with enough, enables motor to stablize and efficiently work.
Fig. 1 show the schematic block diagram of one embodiment of cooking machine motor-drive circuit 10.Cooking machine motor driven electricity
Road 10 includes zero cross detection circuit 12, controller 13 and circuit for controlling motor 14.Zero cross detection circuit 12 and AC power source 11 connect
It connects, the zero crossing for the alternating current that detection AC power source 11 exports generates crossover point signal.Zero cross detection circuit 12 is electrically connected to friendship
Galvanic electricity source 11.Such as alternating current of AC power source 11.
Controller 13 is connect with zero cross detection circuit 12, receives crossover point signal.Controller 13 can be single-chip microcontroller or its
His microcontroller.Controller 13 is connect with circuit for controlling motor 14, and output motor controls signal to circuit for controlling motor 14.
Circuit for controlling motor 14 is connect with motor 15, and is connect with AC power source 11.Circuit for controlling motor 14 is according to control
The motor control signal that device 13 provides works to control simultaneously driving motor 15.
Fig. 2 show the circuit diagram of one embodiment of circuit for controlling motor 14.Circuit for controlling motor 14 includes silicon-controlled
Device SCR201 connects with motor 15, and connect with AC power source 11.Silicon-controlled device is bidirectional triode thyristor device SCR201,
It can be according to the motor control signal driving motor 15 of controller 13.In one embodiment, bidirectional triode thyristor device SCR201
It is series between the firewire L of AC power source and motor 15, motor 15 is further series at zero curve N.In the illustrated embodiment, resistance
It is in parallel with bidirectional triode thyristor device SCR201 after R204 and capacitor C201 series connection.
Circuit for controlling motor 14 includes optocoupler U201, and optocoupler U201 is parallel to bidirectional triode thyristor device SCR201
And it is connect with controller 13.An output end of optocoupler U201 is connected to bidirectional triode thyristor device by resistance R203
The another output of one end of SCR201, optocoupler U201 is connected to bidirectional triode thyristor device SCR201 by resistance R202
The other end.
Optocoupler U201 includes light emitting diode 20, and the anode of light emitting diode 20 connect control with by resistance R201
Device 13, the cathode ground connection of light emitting diode 20.
Circuit for controlling motor 14 further includes rectifier bridge BD201, the firewire L of the rectifier bridge BD201 connection AC power source 11
With the anode of motor 15, and connect AC power source 11 zero curve N and motor 15 cathode.Specifically, the rectifier bridge BD201 connects
It is connected between bidirectional triode thyristor device SCR201 and motor 15.
In one embodiment, silicon-controlled device SCR201 is automatically shut down in zero-crossing of alternating current, and controller 13 is being handed over
Motor control signal is provided after galvanic electricity zero crossing for a period of time to circuit for controlling motor 14, silicon-controlled device SCR201 is connected,
To make motor 15 and AC power source 11 connect, driving motor 15 is started to work, until next zero crossing.In illustrated embodiment
In, when controller 13 exports high level, optocoupler U201 conducting, bidirectional triode thyristor device SCR201 conducting, driving motor 15
It starts to work.Bidirectional triode thyristor device SCR201 automatic cut-off after alternating current zero passage, AC power source stop supplying to motor 15
Electricity.After controller 13 detects zero crossing, the motor control signal of high level is exported after postponing a period of time, is connected two-way controllable
Silicon device SCR201 makes motor 15 start to work.Certainly, in other embodiments, motor control signal is low level, can be passed through
Low level signal controls motor and starts to work.
In a cycle T of alternating current, when the time of delay is T/4, bidirectional triode thyristor device SCR201 is in wave crest
Be connected at trough, motor 15 from must not electric (voltage of motor be 0) to moment application high voltage, (voltage of motor is wave crest
Value or valley value), it is easy to happen shake, influences working efficiency, while also can not test (Electro-Magnetic by EMC
Interference, electromagnetism test).Motor 15 obtains electric waveform diagram and please refers to Fig. 3.
In the application, the controller 13 is only sent out when the amplitude of alternating current is less than peak value (absolute value of wave crest or trough)
The motor control signal of driving motor 15 out, in other words, bidirectional triode thyristor device SCR201 are only non-peak in the amplitude of alternating current
It is connected when value.Specifically can be by taking frequency is the alternating current of 50HZ as an example, in a cycle 20ms (millisecond), controller 13 is first
It is delayed 4ms (at 4ms, 1ms before wave crest) after a zero point, driving optocoupler U201 conducting, to make bidirectional triode thyristor device
SCR201 conducting, motor 15 are obtained electric and are worked.After guaranteeing that bidirectional triode thyristor device SCR201 is fully opened, such as 1ms
Afterwards, controller exports low level, closes optocoupler U201.Bidirectional triode thyristor device SCR201 stops in 10ms (second zero point)
It only works, is delayed 6ms (at 16ms, 1ms after wave crest) after second zero point, controller 13 issues motor control signal and drives light
Coupling device U201 conducting, so that bidirectional triode thyristor device SCR201 be driven to open, motor 15 is obtained electric and is worked.In another reality
It applies in example, to further decrease shake, needs to avoid motor must be electric near the wave crest and trough of alternating current, because these points
Voltage value is also relatively high, such as motor is avoided to be connected within the scope of wave crest and trough 1ms, and controller 13 is in this time
The motor control signal of driving motor is not issued in range.
In the present embodiment, in a cycle of alternating current, the time etc. of the circuit for controlling motor driving motor work
In the half period of alternating current, this in wave crest and trough turning circuit (shown in Fig. 3) be it is equivalent, can equally make motor
Revolving speed reaches the motor speed in wave crest and trough conducting.Motor 15 obtains electric waveform diagram can be referring to shown in Fig. 4, Fig. 4 and Fig. 3
Motor the electric time, acquisition electric energy be identical.
In embodiment shown in Fig. 4, silicon-controlled device SCR201 is opened in advance before wave crest, postpone to beat after trough
Silicon-controlled device SCR201 is opened, the time shifted to an earlier date before wave crest is equal with the time postponed after trough.
The motor that Fig. 5 show the application obtains the waveform diagram of electric another embodiment.It is compared to the embodiment of Fig. 4, Fig. 5
In embodiment, silicon-controlled device SCR201 is opened in delay after wave crest, opens silicon-controlled device in advance before trough
SCR201, the time that wave crest postpones later are equal with the time before trough in advance.For example, controller prolongs after first zero point
When 6ms (at 6ms, 1ms after wave crest), delay 4ms (14ms at, 1ms before trough) driving optocoupler U201 after second zero point
Conducting opens bidirectional triode thyristor device SCR201, and motor 15 obtains electric.The electric energy for obtaining electric time, acquisition of motor shown in fig. 5
It is identical as Fig. 3 and Fig. 4, it so that the revolving speed of motor is reached the motor speed in wave crest and trough conducting.
Certainly, those skilled in the art are it is contemplated that in other embodiments, the electric energy for obtaining electric time, acquisition is arranged
At be different from Fig. 4 and embodiment shown in fig. 5, for example the electric time be greater than T/2 or be less than T/2, the electric energy of acquisition it is corresponding greatly
In or less than Fig. 4 or Fig. 5 electric energy obtained.
It is same only controller 13 to be guaranteed in alternating current non-peak position for the AC power source of other frequencies (such as 60HZ)
When issue driving motor control signal, in other embodiments, for further decrease shake, it is also desirable to guarantee that controller 13 exists
The control signal of driving motor is issued when alternating current non-peak position and its close region, principle is similar with 50HZ, repeats no more.
Fig. 6 is the flow chart of one embodiment of driving method 30, and driving method 30 can be held by controller 13
Row.In step 32, after cooking machine powers on, controller judges whether to stir；If step 32 is judged as NO, step 34 is executed,
It is for example heated, after the completion repeatedly step 32；If step 32 is judged as YES, step 33 is executed.
In step 33, controller 13 judges whether motor needs to obtain the revolving speed in wave crest and trough copped wave, is with judgement
No needs copped wave at wave crest or trough, that is, judge whether controller 13 will issue driving motor 15 at wave crest or trough
Signal.As step 33 be it is yes, then follow the steps 35, controller is located at according to the zero cross signal detected in the amplitude of alternating current
The signal of driving motor is issued when non-peak position, driving optocoupler U201 conducting beats bidirectional triode thyristor device SCR201
It opens, 15 work once electrified of motor, later repeatedly step 33, until stirring terminates；If step 33 is judged as NO, 37 are thened follow the steps,
After detecting zero cross signal, controller 13 issues the signal of driving motor 15 after normal delay, drives optocoupler U201 conducting,
Bidirectional triode thyristor device SCR201 is opened, 15 work once electrified of motor, repeatedly step 33 later, until stirring terminates.
Fig. 7 show the perspective view of the cooking machine 40 of one embodiment.Cooking machine 40 includes host 41 and stirring cup 42.It is main
Machine 41 includes above-mentioned motor 15 and above-mentioned cooking machine motor-drive circuit 10, and cooking machine motor-drive circuit 10 and motor 15 connect
It connects.Motor 15 and cooking machine motor-drive circuit 10 are located in host housing, do not show in Fig. 6.Stirring cup 42 is removable
It is installed on unloading on host 41.Cooking machine 40 may also include the cup lid component 43 that can be covered on stirring cup 42 and be set to stirring cup
Mixing blade assembly (not shown) in 42.
The cooking machine and its circuit for controlling motor of the application, by avoiding the peak value in alternating current from issuing the electricity of driving motor
Machine control signal avoids motor from obtaining in the position of wave crest or trough electric, to reduce the shake of motor, while ensure that motor has
There is enough the electric time, motor is enable to stablize and efficiently work.
The foregoing is merely the preferred embodiments of the application, not to limit the application, all essences in the application
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the application protection.
Claims (10)
1. a kind of cooking machine motor-drive circuit, it is characterised in that: comprising:
Zero cross detection circuit (12), connect with AC power source, and the zero crossing of the alternating current of detection AC power source output generates zero passage
Point signal；
Controller (13), the controller (13) connect with the zero cross detection circuit (12) and receive the zero cross detection circuit
(12) crossover point signal, in a cycle (T) of alternating current, the controller is sent out when the amplitude of alternating current is less than peak value
The motor control signal of driving motor out；And
Circuit for controlling motor (14) connect with motor (15), and connect with the AC power source, the circuit for controlling motor (14)
It is connect with the controller, receive the motor control signal of the controller and the motor is driven to work.
2. cooking machine motor-drive circuit as described in claim 1, it is characterised in that: in a cycle (T) of alternating current,
The time of the circuit for controlling motor driving motor work is equal to the half period (T/2) of alternating current.
3. cooking machine motor-drive circuit as described in claim 1, it is characterised in that: the circuit for controlling motor (14) includes
Bidirectional triode thyristor device (SCR201), connects with the motor, and connect with the AC power source.
4. cooking machine motor-drive circuit as claimed in claim 3, it is characterised in that: the bidirectional triode thyristor device
(SCR201) it is series between the firewire (L) of the AC power source and the motor.
5. cooking machine motor-drive circuit as claimed in claim 4, it is characterised in that: the circuit for controlling motor (14) includes
Optocoupler (U201), the optocoupler (U201) be parallel to the bidirectional triode thyristor device (SCR201) and with the control
Device (13) connection.
6. cooking machine motor-drive circuit as claimed in claim 5, it is characterised in that: the optocoupler (U201) includes hair
The anode of optical diode (20), the light emitting diode (20) is connect with the controller (13).
7. cooking machine motor-drive circuit as claimed in claim 3, it is characterised in that: the cooking machine motor-drive circuit is also
Including rectifier bridge (BD201), the anode of firewire (L) and motor of rectifier bridge (BD201) the connection AC power source, and connect and hand over
The zero curve (N) in galvanic electricity source and the cathode of motor (15).
8. cooking machine motor-drive circuit as claimed in claim 7, it is characterised in that: the rectifier bridge (BD201) is connected to
Between bidirectional triode thyristor device (SCR201) and motor.
9. cooking machine motor-drive circuit as claimed in claim 8, it is characterised in that: the rectifier bridge (BD201) is single-phase
Rectifier bridge.
10. a kind of cooking machine, it is characterised in that: comprising:
Host (41), including any cooking machine motor-drive circuit of motor (15) and claim 1-9, the cooking machine
Motor-drive circuit is connect with the motor (15)；And
Stirring cup (42) is removably installed on the host (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820927949.XU CN208337449U (en) | 2018-06-14 | 2018-06-14 | Food processor motor drive circuit and food processor comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820927949.XU CN208337449U (en) | 2018-06-14 | 2018-06-14 | Food processor motor drive circuit and food processor comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208337449U true CN208337449U (en) | 2019-01-04 |
Family
ID=64770893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820927949.XU Active CN208337449U (en) | 2018-06-14 | 2018-06-14 | Food processor motor drive circuit and food processor comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208337449U (en) |
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2018
- 2018-06-14 CN CN201820927949.XU patent/CN208337449U/en active Active
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