CN104181831A - Control system and control method of food smashing, stirring and mixing equipment - Google Patents
Control system and control method of food smashing, stirring and mixing equipment Download PDFInfo
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- CN104181831A CN104181831A CN201410408353.5A CN201410408353A CN104181831A CN 104181831 A CN104181831 A CN 104181831A CN 201410408353 A CN201410408353 A CN 201410408353A CN 104181831 A CN104181831 A CN 104181831A
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Abstract
The invention discloses a control system and control method of food smashing, stirring and mixing equipment. The control system comprises a motor for smashing and stirring food, an overheating and overcurrent protection switch, a zero crossing signal detecting module, a container detecting switch, a zero crossing signal control module, a relay control module, a thyristor control module and a master control module. The modules are powered by a power conversion module, the master control module can control the relay control module to be communicated with the thyristor control module only when the overheating and overcurrent protection switch does not act, the container detecting switch is switched off and the zero crossing signal detecting module detects a zero crossing signal, the motor is started, the overheating and overcurrent protection switch is combined with the container detecting switch, motor starting has double protection functions, the motor is prevented from being accidentally started, a user is prevented from being hurt accidentally, and the safety of the food smashing, stirring and mixing equipment is enhanced.
Description
Technical field
The present invention relates to kitchen appliance field, particularly a kind of control system and control method of food crushing, stirring mixing apparatus.
Background technology
Along with the raising of people's living standard, increasing kitchen appliance articles for use start to incorporate people's life.Because kitchen appliance articles for use frequency of utilization is high, and the place that kitchen is children likes, therefore, it is especially important that the safety of kitchen appliance articles for use just seems.Taking existing food crushing, stirring mixing apparatus as example, it often drives blade to realize pulverizing, the Agitation and mixing to food by motor, and the driving voltage of motor is generally the alternating current of 220V, thereby is the most important thing to the protection of motor.
In prior art; generally be designed with overheated excess flow switch detection, container valve detection etc.; but above-mentioned overheated excess flow switch detects and container valve detection is that independently switch detects; just realize defencive function by software or hardware; do not possess double protection functions; under frequent use, security has much room for improvement.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art part; the object of the present invention is to provide a kind of control system and control method of food crushing, stirring mixing apparatus; by container detector switch and overheated overcurrent protective switch, the mode that adopts software and hardware to condition each other provides multiple protective.
In order to achieve the above object, the present invention has taked following technical scheme:
A control system for food crushing, stirring mixing apparatus, it comprises: motor, overheated overcurrent protective switch, zero cross signal detection module, container detector switch, zero cross signal control module, relay control module, Thyristor Control Module and main control module;
In the time having user instruction starter motor, whether the container that is detected food crushing, stirring mixing apparatus by container detector switch installs, the container that detects food crushing, stirring mixing apparatus when container detector switch installs, and judge that overheated overcurrent protective switch attonity and zero cross signal detection module detect while having zero cross signal, by main control module output control signal, relay control module and Thyristor Control Module are opened, starter motor work does not have container to install when the container of container detector switch detection food crushing, stirring mixing apparatus detects, or overheated overcurrent protective switch action, or while zero cross signal not detected, container detector switch disconnects relay control module, disconnected by main control module output control signal pilot relay control module and Thyristor Control Module simultaneously, motor is not rotated.
The control system of described food crushing, stirring mixing apparatus also comprises the power conversion module for alternating current being converted to powered by direct current, and described relay control module comprises relay, the first diode, the first triode, the second triode, the first resistance, the second resistance and the first electric capacity; One end of the emitter connecting container detector switch of described the first triode, the base stage of the first triode connects the 3rd end of main control module and one end of the first electric capacity by the second resistance, the collector of described the first triode connects the base stage of the second triode by the first resistance, the equal ground connection of the other end of the emitter of described the second triode and the first electric capacity, the collector of described the second triode connects one end of the positive pole of the first diode and the coil of relay, and the other end of the negative pole of the first diode and the coil of relay is all connected power conversion module; The negative pole of one end connecting motor of the normally opened contact of described relay, the other end of the normally opened contact of described relay connects Thyristor Control Module.
In the control system of described food crushing, stirring mixing apparatus, described Thyristor Control Module comprises bidirectional triode thyristor, the 3rd triode and the 3rd resistance, the 1st end of described bidirectional triode thyristor connects power conversion module, the 2nd end of bidirectional triode thyristor connects the other end of the normally opened contact of relay, the 3rd end of bidirectional triode thyristor connects the collector of the 3rd triode, the base stage of the 3rd triode connects the 2nd end of main control module, the grounded emitter of the 3rd triode by the 3rd resistance.
In the control system of described food crushing, stirring mixing apparatus, described zero cross signal control module comprises the 4th triode, the 4th resistance, the 5th resistance, the second diode, the 3rd diode and the second electric capacity; The positive pole of described the 3rd diode connects one end of described container detector switch, the negative pole of the 3rd diode is by the 5th resistance eutral grounding, also by the second capacity earth, also connect the base stage of the 4th triode by the 4th resistance, the emitter of described the 4th triode connects the negative pole of the second diode, the collector of the 4th triode connects zero cross signal detection module, and the positive pole of the second diode connects power conversion module.
In the control system of described food crushing, stirring mixing apparatus, described zero cross signal detection module comprises the 5th triode, the 4th diode, the 5th diode, the 3rd electric capacity, the 6th resistance, the 7th resistance, the 8th resistance and the 9th resistance; One end that the positive pole of the negative pole connecting motor of described the 5th diode is connected with overheated overcurrent protective switch; the positive pole of the 5th diode is connected the base stage of positive pole and the 5th triode of the 4th diode successively with the 7th resistance by the 6th resistance; the negative pole of described the 4th diode is connected described power conversion module with the emitter of the 5th triode, the collector of the 5th triode by the 8th resistance connect the 1st end of main control module, also by the 9th resistance eutral grounding, also by the 3rd capacity earth.
In the control system of described food crushing, stirring mixing apparatus, described main control module comprises control chip, the 4th electric capacity and the tenth resistance, the PA1/AN1/VREF end of described control chip connects the collector of the 5th triode by the 8th resistance, the PA2/AN2 end of described control chip connects the base stage of the 3rd triode by the 3rd resistance, the PA3/INT0/AN3 end of described control chip connects the base stage of the first triode by described the second resistance, the PA7 end of described control chip connects one end of VCC feeder ear and the 4th electric capacity by the tenth resistance, the other end ground connection of described the 4th electric capacity.
The control system of described food crushing, stirring mixing apparatus, also comprises
Button assembly;
For the user interface display module of display working condition;
Described button assembly is all connected main control module with user interface display module.
In the control system of described food crushing, stirring mixing apparatus, described power conversion module comprises:
For the power filter unit that civil power is carried out to filtering processing;
For the alternating current of power filter unit output is converted to the galvanic AC/DC of 12V unit;
For the 12V direct current of AC/DC unit output is converted to the galvanic DC/DC of 5V unit;
The input end of described power filter unit connects the attaching plug of food crushing, stirring mixing apparatus, the positive pole of output live wire connecting motor of described power filter unit and the live wire input end of AC/DC unit, the output zero line of described power filter unit connects the zero line input end of AC/DC unit and the zero line output terminal of AC/DC unit, the zero line output terminal of described AC/DC unit also connects the zero line input end of DC/DC unit and the 1st end of bidirectional triode thyristor, and the live wire output terminal of AC/DC unit connects the live wire input end of DC/DC unit; The other end of the described zero line output terminal connecting container detector switch that connects DC/DC unit and the positive pole of the second diode.
The control system of corresponding described food crushing, stirring mixing apparatus, the present invention also provides a kind of control method of food crushing, stirring mixing apparatus, comprises the steps:
A, in the time having user instruction starter motor, whether the container that is detected food crushing, stirring mixing apparatus by container detector switch installs; If so, perform step B, otherwise, execution step C;
B, judge whether overheated overcurrent protective switch moves; If so, perform step D, otherwise, execution step F;
C, container detector switch disconnect relay control module, are disconnected by main control module output control signal pilot relay control module and Thyristor Control Module simultaneously, and motor is not rotated, and return to afterwards steps A;
D, by zero cross signal control module shielding zero cross signal, and feed back to main control module;
E, disconnected by main control module output control signal pilot relay control module and Thyristor Control Module, motor is not rotated, return to afterwards steps A;
F, by zero cross signal detection module detect whether have zero cross signal, if it is perform step G, otherwise, return to steps A;
G, by main control module output control signal, relay control module and Thyristor Control Module are opened, starter motor work.
In the control method of described food crushing, stirring mixing apparatus, between step D and step e, also comprise that step: D1, main control module detected when zero cross signal is less than 3 in 0.1 second, execution step E.
Compared to prior art, control system and the control method of food crushing, stirring mixing apparatus provided by the invention, by the circuit of overheated overcurrent protective switch and container detector switch is combined, the control system of described food crushing, stirring mixing apparatus is only failure to actuate at overheated overcurrent protective switch, when container detector switch closure and zero cross signal detection module detect zero cross signal, main control module is pilot relay control module and Thyristor Control Module conducting, make motor starting, realize the duplicate protection of motor starting, increase the security of food crushing, stirring mixing apparatus.
Brief description of the drawings
Fig. 1 is the structured flowchart of the control system of food crushing, stirring mixing apparatus of the present invention.
Fig. 2 is the circuit diagram of the control system of food crushing, stirring mixing apparatus of the present invention.
Fig. 3 is the process flow diagram of the control method of the control system of food crushing, stirring mixing apparatus of the present invention.
Embodiment
The invention provides a kind of control system and control method of food crushing, stirring mixing apparatus; by overheated overcurrent protective switch circuit and container detector switch circuit are combined; for the startup of motor provides duplicate protection, strengthen the security of food crushing, stirring mixing apparatus.
For making object of the present invention, technical scheme and effect clearer, clear and definite, developing simultaneously referring to accompanying drawing, the present invention is described in more detail for embodiment.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Refer to Fig. 1, the control system of described food crushing, stirring mixing apparatus comprises: motor M, for carrying out the overheated overcurrent protective switch S1 of overheated overcurrent protection, container detector switch S2, power conversion module 10, zero cross signal detection module 20, main control module 30, Thyristor Control Module 40, relay control module 50 and zero cross signal control module 60 for detection of the container installment state of food crushing, stirring mixing apparatus.Wherein, described power conversion module 10 is by the positive pole of overheated overcurrent protective switch S1 connecting motor M and the 1st end of zero cross signal detection module 20, and the negative pole of described motor M connects the 1st end of relay control module 50; The 2nd end of described zero cross signal detection module 20 connects main control module 30 the 1st end, and the 2nd end of zero cross signal detection module 20 is also by one end of zero cross signal control module 60 connecting container detector switch S2; The 2nd end of described main control module 30 connects the 2nd end of relay control module 50 by Thyristor Control Module 40, the 3rd end of described main control module 30 connects the 3rd end of relay control module 50; One end of described container detector switch S2 also connects the 4th end of relay control module 50, and the other end of container detector switch S2 connects power conversion module 10.
Described motor M pulverizes and stirs food for controlling the blade rotating of food crushing, stirring mixing apparatus, and in the time having user instruction starter motor M, whether the container that is detected food crushing, stirring mixing apparatus by container detector switch S2 installs; If installed, closed container detector switch S2 judge whether overheated overcurrent protective switch S1 moves; If overheated overcurrent protective switch S1 attonity, detects whether there is zero cross signal by zero cross signal detection module 20; If there is zero cross signal, to export control signal by main control module 30 relay control module 50 and Thyristor Control Module 40 are opened, starter motor M work, makes equipment start to pulverize and is uniformly mixed food.In the time that the container detection of container detector switch S2 detection food crushing, stirring mixing apparatus does not have container installation or overheated overcurrent protective switch S1 action or zero cross signal do not detected; container detector switch S2 disconnects relay control module 50; while exports control signal pilot relay control module 50 by main control module 30 and Thyristor Control Module 40 disconnects, and motor is not rotated.
In the process of the control system starter motor M of above-mentioned food crushing, stirring mixing apparatus; be provided with software and hardware duplicate protection; only have when the container of food crushing, stirring mixing apparatus installs, overheated overcurrent protective switch S1 attonity and zero cross signal detection module 20 detect while having zero cross signal; ability starter motor M; prevent motor M accidental activation, avoid user to cause unexpected injury.Concrete, in the time that the container of container detector switch S2 detection food crushing, stirring mixing apparatus does not install, container detector switch S2 disconnects relay control module 50, while exports control signal pilot relay control module 50 by main control module 30 and Thyristor Control Module 40 disconnects, motor M is not rotated, whether the container that continues afterwards detection food crushing, stirring mixing apparatus installs, until container installs.After the container of food crushing, stirring mixing apparatus installs; if overheated overcurrent protective switch S1 has action; shield zero cross signal by zero cross signal control module 60; and feed back to main control module 30; export control signal pilot relay control module 50 and Thyristor Control Module 40 disconnects by main control module 30; motor M is not rotated; whether the container that again detects again afterwards food crushing, stirring mixing apparatus installs, until container installs, overheated overcurrent protective switch S1 attonity.Container at food crushing, stirring mixing apparatus installs, after overheated overcurrent protective switch S1 attonity; if zero cross signal detection module 20 detects without zero cross signal; whether the container that again detects food crushing, stirring mixing apparatus installs, until container installs, overheated overcurrent protective switch S1 attonity, zero cross signal detection module 20 detect zero cross signal.
The control system of food crushing, stirring mixing apparatus of the present invention; whether the container that detects food crushing, stirring mixing apparatus by container detector switch S2 installs, judges whether overheated overcurrent protective switch S1 moves and 20 detections of zero cross signal detection module have or not zero cross signal; starter motor M has been taked to software and hardware duplicate protection; prevent in motor M accidental activation and motor running process that circuit is overheated, the injury of overcurrent to electronic devices and components; avoid user to cause unexpected injury, improved security.
Refer to Fig. 2, in the embodiment of the present invention, described relay control module 50, for controlling the duty of motor, realizes the break-make of circuit by the break-make of relay, thereby controls the open and close of motor.Described relay control module 50 comprises relay R EL1, the first diode D1, the first triode Q1, the second triode Q2, the first resistance R 1, the second resistance R 2 and the first capacitor C 1, one end of the emitter connecting container detector switch S2 of described the first triode Q1, the base stage of the first triode Q1 connects the 3rd end of main control module 30 and one end of the first capacitor C 1 by the second resistance R 2, the collector of described the first triode Q1 connects the base stage of the second triode Q2 by the first resistance R 1, the equal ground connection of the other end of the emitter of described the second triode Q2 and the first capacitor C 1, the collector of described the second triode Q2 connects one end of the positive pole of the first diode D1 and the coil KM of relay R EL1, the other end of the coil KM of the negative pole of the first diode D1 and relay R EL1 is all connected power conversion module 10, the negative pole of one end connecting motor M of the normally opened contact K1 of described relay R EL1, the other end of the normally opened contact K1 of described relay R EL1 connects Thyristor Control Module 40.Wherein, described the first triode Q1 is PNP triode, can also be PMOS pipe, and described the second triode Q2 is NPN triode, can also be NMOS pipe.
Described relay control module 50, when container detector switch S2 closure, the 3rd end output low level of main control module 30, the first triode Q1 conducting, thus make the second also conducting of triode Q2, the coil KM of relay R EL1 is powered on, the in the situation that of Thyristor Control Module 40 conducting, the normally opened contact K1 closure of relay R EL1, i.e. relay control module 50 conductings, thus realize the control that motor is opened and closed.
In the control system of described food crushing, stirring mixing apparatus, described Thyristor Control Module 40 is for the duty of pilot relay control module 50, comprise bidirectional triode thyristor T1, the 3rd triode Q3 and the 3rd resistance R 3, the 1st end of described bidirectional triode thyristor T1 connects power conversion module 10, the 2nd end of bidirectional triode thyristor T1 connects the other end of the normally opened contact K1 of relay R EL1, the 3rd end of bidirectional triode thyristor T1 connects the collector of the 3rd triode Q3, the base stage of the 3rd triode Q3 connects the 2nd end of main control module 30 by the 3rd resistance R 3, the grounded emitter of the 3rd triode Q3.Wherein, described the 3rd triode Q3 is NPN triode, can also be NMOS pipe.
Please continue to refer to Fig. 2, described zero cross signal control module 60 for shielding zero cross signal in the time that container detector switch S2 disconnects, make main control module 30 not receive zero cross signal, and then main control module 30 is controlled Thyristor Control Module 40 and relay control module 50 disconnects.Described zero cross signal control module 60 comprises the 4th triode Q4, the 4th resistance R 4, the 5th resistance R 5, the second diode D2, the 3rd diode D3 and the second capacitor C 2; The positive pole of described the 3rd diode D3 connects one end of described container detector switch S2, the negative pole of the 3rd diode D3 by the 5th resistance R 5 ground connection, also by the second capacitor C 2 ground connection, also connect the base stage of the 4th triode Q4 by the 4th resistance R 4, the emitter of described the 4th triode Q4 connects the negative pole of the second diode D2, the positive pole that the collector of the 4th triode Q4 connects zero cross signal detection module 20, the second diode D2 connects power conversion module 10.
Described zero cross signal detection module 20 is for detection of zero cross signal, and zero cross signal is transferred to main control module 30.Described zero cross signal detection module 20 comprises the 5th triode Q5, the 4th diode D4, the 5th diode D5, the 3rd capacitor C 3, the 6th resistance R 6, the 7th resistance R 7, the 8th resistance R 8 and the 9th resistance R 9.One end that the positive pole of the negative pole connecting motor M of described the 5th diode D5 is connected with overheated overcurrent protective switch S1; the positive pole of the 5th diode D5 is connected the base stage of positive pole and the 5th triode Q3 of the 4th diode D4 successively with the 7th resistance R 7 by the 6th resistance R 6; the negative pole of described the 4th diode D4 is connected described power conversion module 10, the five triode Q5 collector with the emitter of the 5th triode Q5 by the 8th resistance R 8 connect the 1st end of main control module 30, also by the 9th resistance R 9 ground connection, also by the 3rd capacitor C 3 ground connection.
Described main control module 30 carrys out the duty of pilot relay control module 50 and Thyristor Control Module 40 for the signal feeding back according to zero cross signal detection module 20, specifically comprise control chip U1, the 4th capacitor C 4 and the tenth resistance R 10, the PA1/AN1/VREF end of described control chip connects the collector of the 5th triode Q5 by the 8th resistance R 8, the PA2/AN2 end of described control chip U1 connects the base stage of the 3rd triode Q3 by the 3rd resistance R 3, the PA3/INT0/AN3 end of described control chip U1 connects the base stage of the first triode Q1 by described the second resistance R 2, the PA7 end of described control chip U1 connects one end of VCC feeder ear and the 4th capacitor C 4 by the tenth resistance R 10, the other end ground connection of described the 4th capacitor C 4.
Refer to Fig. 1 and Fig. 2, the control system of described food crushing, stirring mixing apparatus, also comprise button assembly 70 and the user interface display module 80 for display working condition, described button assembly 70 is all connected main control module 30 with user interface display module 80.Described button assembly 70 is controlled the opening and closing of main control module 30, realizes the startup to motor M and the control of closing.Described user interface display module 80 shows the duty of the control system of described food crushing, stirring mixing apparatus, prompting custom system no startup, motor working time, and when in the time that overcurrent overheat, starter motor M appear in circuit, container does not install, report to the police in the mode of pilot lamp flicker.
Please continue to refer to Fig. 1 and Fig. 2, in the control system of described food crushing, stirring mixing apparatus, described power conversion module 10 is for being converted to powered by direct current by alternating current, specifically comprise: for civil power being carried out to the power filter unit 101 of filtering processing, be converted to the galvanic AC/DC of 12V unit 102 and be converted to the galvanic DC/DC of 5V unit 103 for the 12V direct current that AC/DC unit 102 is exported for the alternating current that power filter unit 101 is exported.The positive pole power supply of motor M will be given in described power filter unit 101 after alternating current filtering; Described AC/DC unit 102 is exported 12V direct current and is powered to zero cross signal detection module 20, Thyristor Control Module 40 and relay control module 50; Described DC/DC unit 103 is exported 5V direct current and is powered to container detector switch S2 and zero cross signal control module 60.
The input end of described power filter unit 101 connects the attaching plug of food crushing, stirring mixing apparatus, the positive pole of the output live wire connecting motor M of described power filter unit 101 and the live wire input end of AC/DC unit 102, the output zero line of described power filter unit 101 connects the zero line input end of AC/DC unit 102 and the zero line output terminal of AC/DC unit 102, the zero line output terminal of described AC/DC unit 102 also connects the zero line input end of DC/DC unit 103, the 1st end of bidirectional triode thyristor T1, the negative pole of the first diode D1, the other end of the coil KM of relay R EL1, the emitter of the negative pole of the 4th diode D4 and the 5th triode Q5, the live wire output terminal of described AC/DC unit 102 connects the live wire input end of DC/DC unit 103, the other end of the described zero line output terminal connecting container detector switch S2 that connects DC/DC unit 103 and the positive pole of the second diode D2.
The control system of above-mentioned food crushing, stirring mixing apparatus, provides alternating current by power conversion module to motor, and supplies direct current to other modules, maintains the normal operation of whole equipment.Overheated overcurrent protective switch and container detector switch are combined, the control system of described food crushing, stirring mixing apparatus is only failure to actuate at overheated overcurrent protective switch, when container detector switch closure and zero cross signal detection module detect zero cross signal, main control module is pilot relay control module and Thyristor Control Module conducting, make motor starting, otherwise not starter motor, make motor starting possess software and hardware double protection functions, prevent motor accidental activation, avoid user to cause unexpected injury, increase the security of food crushing, stirring mixing apparatus.
Refer to Fig. 3, the present invention also provides a kind of control method of control system of food crushing, stirring mixing apparatus, comprises the steps:
S10, in the time having user instruction starter motor, whether the container that is detected food crushing, stirring mixing apparatus by container detector switch installs; If so, perform step S11, otherwise, execution step S12;
S11, judge whether overheated overcurrent protective switch moves; If so, perform step S13, otherwise, execution step S15;
S12, container detector switch disconnect relay control module, are disconnected by main control module output control signal pilot relay control module and Thyristor Control Module simultaneously, and motor is not rotated, and return to afterwards step S10;
S13, by zero cross signal control module shielding zero cross signal, and feed back to main control module;
S14, disconnected by main control module output control signal pilot relay control module and Thyristor Control Module, motor is not rotated, return to afterwards step S10;
S15, by zero cross signal detection module detect whether have zero cross signal, if it is perform step S16, otherwise, return to step S10;
S16, by main control module output control signal, relay control module and Thyristor Control Module are opened, starter motor work.
Wherein, in the control method of described food crushing, stirring mixing apparatus, between step S13 and step S14, also comprise step: main control module detected when zero cross signal is less than 3 in 0.1 second; execution step S14, plays the effect of protection circuitry components and parts.
In sum, the control method of the control system of food crushing, stirring mixing apparatus provided by the invention, the detection whether installing by the container of food crushing, stirring mixing apparatus, the judgement whether overheated overcurrent protective switch moves and have the detection of zero cross signal, only be failure to actuate at overheated overcurrent protective switch, when the container of food crushing, stirring mixing apparatus installs and zero cross signal detection module zero cross signal detected, just by main control module pilot relay control module and Thyristor Control Module conducting, make motor starting, realize the multiple protection functions that hardware and software conditions each other, strengthen the security of food crushing, stirring mixing apparatus.
Be understandable that, for those of ordinary skills, can be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, and all these changes or replacement all should belong to the protection domain of the appended claim of the present invention.
Claims (10)
1. the control system of a food crushing, stirring mixing apparatus, it is characterized in that, comprising: motor, overheated overcurrent protective switch, zero cross signal detection module, container detector switch, zero cross signal control module, relay control module, Thyristor Control Module and main control module;
In the time having user instruction starter motor, whether the container that is detected food crushing, stirring mixing apparatus by container detector switch installs; The container that detects food crushing, stirring mixing apparatus when container detector switch installs, and judge that overheated overcurrent protective switch attonity and zero cross signal detection module detect while having zero cross signal, by main control module output control signal, relay control module and Thyristor Control Module are opened, starter motor work; In the time that the container detection of container detector switch detection food crushing, stirring mixing apparatus does not have container installation or the action of overheated overcurrent protective switch or zero cross signal do not detected; container detector switch disconnects relay control module; disconnected by main control module output control signal pilot relay control module and Thyristor Control Module simultaneously, motor is not rotated.
2. the control system of food crushing, stirring mixing apparatus according to claim 1, is characterized in that, described relay control module comprises relay, the first diode, the first triode, the second triode, the first resistance, the second resistance and the first electric capacity; One end of the emitter connecting container detector switch of described the first triode, the base stage of the first triode connects the 3rd end of main control module and one end of the first electric capacity by the second resistance, the collector of described the first triode connects the base stage of the second triode by the first resistance, the equal ground connection of the other end of the emitter of described the second triode and the first electric capacity, the collector of described the second triode connects one end of the positive pole of the first diode and the coil of relay, the power conversion module of the equal connection control system of the other end of the negative pole of the first diode and the coil of relay; The negative pole of one end connecting motor of the normally opened contact of described relay, the other end of the normally opened contact of described relay connects Thyristor Control Module.
3. the control system of food crushing, stirring mixing apparatus according to claim 2, it is characterized in that, Thyristor Control Module comprises bidirectional triode thyristor, the 3rd triode and the 3rd resistance, the 1st end of described bidirectional triode thyristor connects power conversion module, the 2nd end of bidirectional triode thyristor connects the other end of the normally opened contact of relay, the 3rd end of bidirectional triode thyristor connects the collector of the 3rd triode, the base stage of the 3rd triode connects the 2nd end of main control module, the grounded emitter of the 3rd triode by the 3rd resistance.
4. the control system of food crushing, stirring mixing apparatus according to claim 3, is characterized in that, described zero cross signal control module comprises the 4th triode, the 4th resistance, the 5th resistance, the second diode, the 3rd diode and the second electric capacity; The positive pole of described the 3rd diode connects one end of described container detector switch, the negative pole of the 3rd diode is by the 5th resistance eutral grounding, also by the second capacity earth, also connect the base stage of the 4th triode by the 4th resistance, the emitter of described the 4th triode connects the negative pole of the second diode, the collector of the 4th triode connects zero cross signal detection module, and the positive pole of the second diode connects power conversion module.
5. the control system of food crushing, stirring mixing apparatus according to claim 4, it is characterized in that, described zero cross signal detection module comprises the 5th triode, the 4th diode, the 5th diode, the 3rd electric capacity, the 6th resistance, the 7th resistance, the 8th resistance and the 9th resistance; One end that the positive pole of the negative pole connecting motor of described the 5th diode is connected with overheated overcurrent protective switch; the positive pole of the 5th diode is connected the base stage of positive pole and the 5th triode of the 4th diode successively with the 7th resistance by the 6th resistance; the negative pole of described the 4th diode is connected described power conversion module with the emitter of the 5th triode, the collector of the 5th triode by the 8th resistance connect the 1st end of main control module, also by the 9th resistance eutral grounding, also by the 3rd capacity earth.
6. the control system of food crushing, stirring mixing apparatus according to claim 5, it is characterized in that, described main control module comprises control chip, the 4th electric capacity and the tenth resistance, the PA1/AN1/VREF end of described control chip connects the collector of the 5th triode by the 8th resistance, the PA2/AN2 end of described control chip connects the base stage of the 3rd triode by the 3rd resistance, the PA3/INT0/AN3 end of described control chip connects the base stage of the first triode by described the second resistance, the PA7 end of described control chip connects one end of VCC feeder ear and the 4th electric capacity by the tenth resistance, the other end ground connection of described the 4th electric capacity.
7. the control system of food crushing, stirring mixing apparatus according to claim 6, is characterized in that, also comprises
Button assembly;
For the user interface display module of display working condition;
Described button assembly is all connected main control module with user interface display module.
8. the control system of food crushing, stirring mixing apparatus according to claim 7, is characterized in that, described power conversion module comprises:
For the power filter unit that civil power is carried out to filtering processing;
For the alternating current of power filter unit output is converted to the galvanic AC/DC of 12V unit;
For the 12V direct current of AC/DC unit output is converted to the galvanic DC/DC of 5V unit;
The input end of described power filter unit connects the attaching plug of food crushing, stirring mixing apparatus, the positive pole of output live wire connecting motor of described power filter unit and the live wire input end of AC/DC unit, the output zero line of described power filter unit connects the zero line input end of AC/DC unit and the zero line output terminal of AC/DC unit, the zero line output terminal of described AC/DC unit also connects the zero line input end of DC/DC unit and the 1st end of bidirectional triode thyristor, and the live wire output terminal of AC/DC unit connects the live wire input end of DC/DC unit; The other end of the described zero line output terminal connecting container detector switch that connects DC/DC unit and the positive pole of the second diode.
9. a control method for the control system of food crushing, stirring mixing apparatus as claimed in claim 1, is characterized in that, comprises the steps:
A, in the time having user instruction starter motor, whether the container that is detected food crushing, stirring mixing apparatus by container detector switch installs; If so, perform step B, otherwise, execution step C;
B, judge whether overheated overcurrent protective switch moves; If so, perform step D, otherwise, execution step F;
C, container detector switch disconnect relay control module, are disconnected by main control module output control signal pilot relay control module and Thyristor Control Module simultaneously, and motor is not rotated, and return to afterwards steps A;
D, by zero cross signal control module shielding zero cross signal, and feed back to main control module;
E, disconnected by main control module output control signal pilot relay control module and Thyristor Control Module, motor is not rotated, return to afterwards steps A;
F, by zero cross signal detection module detect whether have zero cross signal, if it is perform step G, otherwise, return to steps A;
G, by main control module output control signal, relay control module and Thyristor Control Module are opened, starter motor work.
10. control method according to claim 9, is characterized in that, between step D and step e, described control method also comprises: D1, main control module detected when zero cross signal is less than 3 in 0.1 second, execution step E.
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| CN201410408353.5A CN104181831B (en) | 2014-08-19 | 2014-08-19 | The control system and control method of food crushing, stirring mixing apparatus |
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| CN201410408353.5A CN104181831B (en) | 2014-08-19 | 2014-08-19 | The control system and control method of food crushing, stirring mixing apparatus |
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| CN104181831B CN104181831B (en) | 2017-03-08 |
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| CN104181831B (en) | 2017-03-08 |
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