CN110618727A - Food processor and control method and control device thereof - Google Patents

Food processor and control method and control device thereof Download PDF

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Publication number
CN110618727A
CN110618727A CN201810637152.0A CN201810637152A CN110618727A CN 110618727 A CN110618727 A CN 110618727A CN 201810637152 A CN201810637152 A CN 201810637152A CN 110618727 A CN110618727 A CN 110618727A
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China
Prior art keywords
power
whipping
food
heating
target temperature
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Granted
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CN201810637152.0A
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Chinese (zh)
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CN110618727B (en
Inventor
徐少承
王志锋
冯江平
梁显堂
雷俊
王帅
刘传兰
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Guangdong Midea Consumer Electric Manufacturing Co Ltd
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Guangdong Midea Consumer Electric Manufacturing Co Ltd
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Priority to CN201810637152.0A priority Critical patent/CN110618727B/en
Publication of CN110618727A publication Critical patent/CN110618727A/en
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Publication of CN110618727B publication Critical patent/CN110618727B/en
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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
    • A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
    • A47J43/046—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven with tools driven from the bottom side
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
    • A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
    • A47J43/07—Parts or details, e.g. mixing tools, whipping tools
    • A47J43/0716—Parts or details, e.g. mixing tools, whipping tools for machines with tools driven from the lower side
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
    • A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
    • A47J43/07—Parts or details, e.g. mixing tools, whipping tools
    • A47J43/08—Driving mechanisms
    • A47J43/085—Driving mechanisms for machines with tools driven from the lower side
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1917—Control of temperature characterised by the use of electric means using digital means
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/66—Regulating electric power
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J2201/00—Devices having a modular construction

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Power Engineering (AREA)
  • Electromagnetism (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Food-Manufacturing Devices (AREA)
  • Control Of Temperature (AREA)

Abstract

The invention discloses a food processor and a control method and a control device thereof, wherein the control method comprises the following steps: acquiring a heating target temperature value and a whipping gear; acquiring corresponding heating power and whipping power according to the heating target temperature value and the whipping gear; judging whether the sum of the heating power and the whipping power is greater than a preset power threshold value; if yes, controlling the heater to heat to the intermediate target temperature value at full power; after the intermediate target temperature value is reached, heating from the intermediate target temperature value to a heating target temperature value with minimum heating power, and simultaneously controlling the driving motor according to the whipping power. Therefore, heating and whipping can be subjected to discrete serial control or parallel control, so that the sum of heating power and whipping power can be controlled within a preset threshold value, and the reliability is improved on the premise of not influencing the wall breaking effect.

Description

Food processor and control method and control device thereof
Technical Field
The invention relates to the technical field of household appliances, in particular to a food processor and a control method and a control device thereof.
Background
The food processor integrates the functions of grinding soybean milk, grinding dry powder, squeezing fruit juice, stirring meat stuffing, shaving ice and the like, is used for manufacturing various foods such as fruit juice, soybean milk, jam, dry powder, shaving ice, meat stuffing and the like, and is a product obtained by diversifying the juice extractor. Generally, a food processor is prepared to be favored by users by controlling a motor to run at a high speed to break cell walls of food so that nutrients of the food can be sufficiently released.
In consideration of the power of the circuit board of the food processor, if the power borne by the circuit board of the food processor is large (e.g., more than 1500W), the corresponding requirement for the current also becomes large, which reduces the reliability of the food processor.
Disclosure of Invention
The present invention is directed to solving at least one of the problems in the art to some extent. Therefore, a first objective of the present invention is to provide a control method for a food processor, which can perform discrete serial control or parallel control on heating and whipping, so as to control the sum of the heating power and the whipping power within a preset threshold, thereby improving reliability without affecting the wall-breaking effect.
A second object of the invention is to propose a non-transitory computer-readable storage medium.
The third purpose of the invention is to provide a control device of the food processor.
The fourth purpose of the invention is to provide a food processor.
A fifth object of the present invention is to provide another food processor.
In order to achieve the above object, a first aspect of the present invention provides a control method for a food processor, where the food processor includes a processing container, a driving motor, a heater, and a food processing member for processing food, a food accommodating cavity for accommodating food is formed in the processing container, the food processing member extends into the food accommodating cavity and is driven by the driving motor to rotate relative to the processing container, and the heater is used for heating the food in the processing container, and the control method includes the following steps: acquiring a heating target temperature value and a whipping gear; acquiring corresponding heating power and whipping power according to the heating target temperature value and the whipping gear; judging whether the sum of the heating power and the whipping power is greater than a preset power threshold value; if the temperature is higher than the preset power threshold value, controlling the heater to heat to an intermediate target temperature value at full power, wherein the intermediate target temperature value is lower than the heating target temperature value; after the intermediate target temperature value is reached, heating from the intermediate target temperature value to the heating target temperature value with minimum heating power, and simultaneously controlling the driving motor according to the whipping power.
According to the control method of the food processor, the heating target temperature value and the whipping gear are obtained, the corresponding heating power and whipping power are obtained according to the heating target temperature value and the whipping gear, whether the sum of the heating power and the whipping power is larger than a preset power threshold value or not is judged, if yes, the heater is controlled to be heated to the intermediate target temperature value at full power, after the intermediate target temperature value is reached, the heating target temperature value is heated from the intermediate target temperature value at minimum heating power, and meanwhile, the driving motor is controlled according to the whipping power. Therefore, heating and whipping can be subjected to discrete serial control or parallel control, the sum of heating power and whipping power can be controlled within a preset threshold value, and the reliability is improved on the premise of not influencing the wall breaking effect.
In addition, the control method of the food processor according to the above embodiment of the present invention may further have the following additional technical features:
according to an embodiment of the present invention, the method for controlling a food processor further includes: and if the power is less than or equal to the preset power threshold, controlling the heater and the driving motor according to the heating power and the whipping power respectively.
According to one embodiment of the invention, the intermediate target temperature value is 70% -90% of the heating target temperature value.
According to an embodiment of the present invention, the obtaining of the corresponding whipping power according to the whipping step includes: acquiring a corresponding relation table between a whipping gear and whipping power; and searching a corresponding relation table between the whipping gear and the whipping power according to the whipping gear to obtain the whipping power corresponding to the whipping gear.
According to an embodiment of the invention, the preset power threshold is related to the maximum power that the circuit board of the food processor can bear.
According to an embodiment of the invention, the preset power threshold corresponds to a power at which full power heating of the heater corresponds.
In order to achieve the above object, a second aspect of the present invention provides a non-transitory computer readable storage medium, on which a computer program is stored, the program, when executed by a processor, implements the control method of the food processor.
According to the non-transitory computer readable storage medium of the embodiment of the invention, by executing the control method of the food processor, the heating and the whipping can be separately controlled in series or in parallel, and then the sum of the heating power and the whipping power can be controlled within a preset threshold value, so that the reliability is improved on the premise of not influencing the wall breaking effect.
In order to achieve the above object, a third aspect of the present invention provides a control device for a food processor, the food processor including a processing container, a driving motor, a heater and a food processing member for processing food, a food accommodating cavity for accommodating food is formed in the processing container, the food processing member extends into the food accommodating cavity and is driven by the driving motor to rotate relative to the processing container, the heater is used for heating the food in the processing container, the control device includes: the first acquisition module is used for acquiring a heating target temperature value and a whipping gear; the second acquisition module is used for acquiring corresponding heating power and whipping power according to the heating target temperature value and the whipping gear; the judging module is used for judging whether the sum of the heating power and the whipping power is greater than a preset power threshold value; and the control module is used for controlling the heater to be heated to an intermediate target temperature value at full power when the sum of the heating power and the whipping power is greater than the preset power threshold value, heating to the heating target temperature value from the intermediate target temperature value at minimum heating power after the intermediate target temperature value is reached, and controlling the driving motor according to the whipping power, wherein the intermediate target temperature value is less than the heating target temperature value.
According to the control device of the food processor, the heating target temperature value and the whipping gear are obtained through the first obtaining module, the corresponding heating power and whipping power are obtained through the second obtaining module according to the heating target temperature value and the whipping gear, whether the sum of the heating power and the whipping power is larger than the preset power threshold or not is judged through the judging module, when the sum of the heating power and the whipping power is larger than the preset power threshold, the control module controls the heater to be heated to the middle target temperature value at full power, after the middle target temperature value is reached, the heater is heated to the heating target temperature value from the middle target temperature value at the minimum heating power, and meanwhile, the driving motor is controlled according to the whipping power. Therefore, heating and whipping can be subjected to discrete serial control or parallel control, the sum of heating power and whipping power can be controlled within a preset threshold value, and the reliability is improved on the premise of not influencing the wall breaking effect.
In addition, the control device of the food processor according to the above embodiment of the present invention may further have the following additional technical features:
according to an embodiment of the present invention, the control module is further configured to: and when the sum of the heating power and the whipping power is less than or equal to the preset power threshold, controlling the heater and the driving motor according to the heating power and the whipping power respectively.
According to one embodiment of the invention, the intermediate target temperature value is 70% -90% of the heating target temperature value.
According to an embodiment of the present invention, the second obtaining module is configured to: acquiring a corresponding relation table between a whipping gear and whipping power; and searching a corresponding relation table between the whipping gear and the whipping power according to the whipping gear to obtain the whipping power corresponding to the whipping gear.
According to an embodiment of the invention, the preset power threshold is related to the maximum power that the circuit board of the food processor can bear.
According to an embodiment of the invention, the preset power threshold corresponds to a power at which full power heating of the heater corresponds.
In order to achieve the above object, a fourth aspect of the present invention provides a food processor, which includes the control device of the food processor.
According to the food processor provided by the embodiment of the invention, the heating and the whipping can be separately controlled in series or in parallel through the control device of the food processor, so that the sum of the heating power and the whipping power can be controlled within a preset threshold value, and the reliability is improved on the premise of not influencing the wall breaking effect.
In order to achieve the above object, a fifth embodiment of the present invention provides a food processor, including a food container, a driving motor, a heater, and a food processing member for processing food, where a food accommodating cavity for accommodating food is formed in the food container, the food processing member extends into the food accommodating cavity and rotates relative to the food container under the driving of the driving motor, the heater is used to heat the food in the food container, the food processor further includes a memory, a processor, and a control program of the food processor stored in the memory and operable on the processor, where the control program is executed by the processor to implement the control method of the food processor.
According to the food processor provided by the embodiment of the invention, through the control method of the food processor, the heating and the whipping can be separately controlled in series or in parallel, so that the sum of the heating power and the whipping power can be controlled within a preset threshold value, and the reliability is improved on the premise of not influencing the wall breaking effect.
In addition, the food processor according to the present invention may further have the following additional features:
according to an embodiment of the present invention, the driving motor includes: the stator core comprises an annular stator yoke portion and a plurality of stator tooth portions, the width of the stator yoke portion is W, the plurality of stator tooth portions are arranged on the inner circumferential surface of the stator yoke portion, a stator tooth slot is formed between every two adjacent stator tooth portions, the plurality of stator tooth portions define a stator hole coaxial with the stator yoke portion, each stator tooth portion comprises a stator tooth portion main body connected with the stator yoke portion and a stator tooth shoe arranged at the inner end of the stator tooth portion main body, the width of each stator tooth portion main body is V, and W: v is 0.6-0.7; and the rotor core is rotatably arranged in the stator hole and is coaxial with the stator hole.
According to another embodiment of the present invention, the driving motor includes: the stator core comprises an annular stator yoke portion and a plurality of stator tooth portions arranged on the inner circumferential surface of the stator yoke portion, a stator tooth slot is formed between every two adjacent stator tooth portions, the plurality of stator tooth portions define a stator hole coaxial with the stator yoke portion, and the maximum radial dimension of the stator yoke portion is D; rotor core, rotor core rotationally establishes in the stator hole and with the stator hole is coaxial, rotor core's maximum radial dimension is D, and wherein, D and D satisfy: D/D is more than or equal to 0.4 and less than or equal to 0.55.
Drawings
Fig. 1 is a schematic structural diagram of a food processor according to an embodiment of the invention;
fig. 2 is a flowchart of a control method of a food processor according to an embodiment of the invention;
fig. 3 is a flowchart of a control method of a food processor according to a specific example of the present invention;
fig. 4 is an assembly view of a stator core and a rotor core of an electric machine according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a rotor core of an electric machine according to an embodiment of the present invention;
fig. 6 is a schematic structural view of a rotor core of a motor according to another embodiment of the present invention;
fig. 7 is a block diagram of a control device of the food processor according to the embodiment of the invention; and
fig. 8 is a block diagram of a food processor according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
A control method of a food processor, a control device of a food processor, and a food processor according to an embodiment of the present invention will be described below with reference to the drawings.
As shown in fig. 1, the food processor 200 according to the embodiment of the present invention may include: a cooking container 210, a driving motor 100, a heater (not shown in the figure), and a food processing member (not shown in the figure) for processing food. Can be formed with the food that is used for holding food in the cooking container 210 and hold the chamber, food processing spare can stretch into food and hold the intracavity, holds the food of intracavity to food through the heater and carries out heat treatment, and rotates for cooking container 210 under driving of driving motor 100 to hold the food of intracavity to food and carry out further processing.
Further, food processor 200 can also include frame 220, and cooking container 210 can be cup body assembly, and cup body assembly detachably locates frame 220 to in getting and putting food and rinsing cup body assembly. Driving motor 100 can be installed in frame 220, and food processing spare can be the knife tackle spare that links to each other with cup subassembly, and when cup subassembly located frame 220, driving motor 100 can be connected with the knife tackle spare transmission, and from this, driving motor 100 can drive the knife tackle spare and rotate for cup subassembly to make knife tackle spare can cut the processing such as food.
With continued reference to fig. 1, the food processor 200 may further include: an electronic control system 230 and a display assembly 240. Wherein, electrical system 230 includes the circuit board, is provided with the drive plate of food processor 200 on the circuit board, and electrical system 230 can install in frame 220 to the drive plate is connected with driving motor 100 electricity and is in order to control driving motor 100 work. The display assembly 240 may include a display panel and a display device (e.g., a display screen), the display assembly 240 may also be mounted on the base 220, the display assembly 240 may be electrically connected to the electronic control system 230, the display assembly 240 may be used to display the operating state of the food processor 200, and in a further embodiment of the present invention, the display assembly 240 may have an operation key, and a user may control the electronic control system 230 through the operation key to further control the operating mode and state of the food processor 200, so that the use is more convenient. Optionally, the driver board and the display panel may communicate with each other using a serial communication protocol.
In the embodiment of the present invention, the heater is heated by using an electromagnetic heater, and an electromagnetic heating coil (not shown) of the heater, which is electrically connected to the driving plate to control the operation of the heater, is disposed on the base 220. In addition, the heater can also adopt the heating pipe to heat, and when adopting the heating pipe to heat, the heating pipe sets up in cooking container 210's lower extreme.
Fig. 2 is a flowchart of a control method of a food processor according to an embodiment of the invention. As shown in fig. 2, the control method of the food processor may include the following steps:
and S1, acquiring a heating target temperature value and a whipping gear.
For example, after the food processor is powered on to work, a user can set a working mode of the food processor through the display device (human-computer interaction interface) of the display assembly, and select a start button to start the food processor to work, for example, when the user needs to clean the food processor, the user can select a cleaning mode; as another example, when a user desires to whip juice, a juice mode may be selected. After the food processor starts to work, the working mode of a user is firstly obtained, and then the working mode is analyzed to obtain a heating target temperature value and a whipping gear.
And S2, acquiring corresponding heating power and whipping power according to the heating target temperature value and the whipping gear.
According to one embodiment of the invention, acquiring the corresponding whipping power according to the whipping gear comprises the following steps: acquiring a corresponding relation table between a whipping gear and whipping power; and searching a corresponding relation table between the whipping gear and the whipping power according to the whipping gear to obtain the whipping power corresponding to the whipping gear.
That is, after the whipping step is acquired, the whipping power P2 corresponding to the whipping step can be acquired by looking up a correspondence table between the whipping step and the whipping power P2 stored in advance in the food processor. For example, the whipping powers P2 for the highest whipping step to the lowest whipping step are 850W, 800W, 750W, 700W, 650W, 600W, 550W, 500W, 200W, respectively.
According to one embodiment of the invention, the heating power is calculated according to the following formula:
P1＝c*m*(Ttarget temperature-A)/tHeating ofWherein P1 is heating power, c is specific heat capacity of water, m is mass, TTarget temperatureFor heating the target temperature value, A is a preset temperature, tHeating ofThe heating time is shown.
Specifically, the heating preset temperature A is 25 ℃ (normal temperature), the mass m is 0.5kg, and the heating time t isHeating ofThe test was carried out for 2 minutes (120 seconds) of water, which, when heated, absorbed heat Q ═ c × m (T)Target temperature-25)＝P1*tHeating of，c＝4.2*103J/(kg ℃), obtaining the relation between the heating target temperature value and the heating power, P1 ═ c × m (T)Target temperature-A)/tHeating of＝17.5*(TTarget temperature-25)。
And S3, judging whether the sum of the heating power and the whipping power is larger than a preset power threshold value.
In an embodiment of the invention, the preset power threshold is related to the maximum power that the circuit board of the food processor can bear, for example, the preset power threshold corresponds to the power when the heater is heated at the full power, for example, when the full power corresponding to the heater is 1500W, the preset power threshold is correspondingly set to 1500W.
And S4, if the power is larger than the preset power threshold value, controlling the heater to heat to the intermediate target temperature value at full power. Wherein the intermediate target temperature value is less than the heating target temperature value, for example, the intermediate target temperature value may be 70% -90% of the heating target temperature value, and preferably may be 80% of the heating target temperature value.
And S5, after the intermediate target temperature value is reached, heating the heating element from the intermediate target temperature value to the heating target temperature value with the minimum heating power, and controlling the driving motor according to the whipping power.
According to an embodiment of the present invention, the method for controlling a food processor may further include: and if the power is less than or equal to the preset power threshold value, controlling the heater and the driving motor according to the heating power and the whipping power respectively.
Specifically, the food processor firstly obtains a working mode of a user, and analyzes the working mode to obtain a heating target temperature value and a whipping gear. Then, corresponding heating power P1 and whipping power P2 are obtained according to the heating target temperature value and the whipping gear, after the heating power P1 and the whipping power P2 are obtained, the sum of the heating power P1 and the whipping power P2 is calculated to be (P1+ P2), and the (P1+ P2) is compared with a preset power threshold value in size. When the power (P1+ P2) is less than or equal to a preset power threshold value, controlling the heater and the driving motor according to the heating power P1 and the whipping power P2 respectively; when the power (P1+ P2) is greater than the preset power threshold, the heater is controlled to heat at full power (for example, 1500W) until the heating temperature reaches an intermediate target temperature value (for example, heating target temperature value 80%), after the intermediate target temperature is reached, the heater is controlled to heat at minimum heating power (for example, 500W) from the intermediate target temperature until the heating temperature reaches the target temperature value, and the driving motor is controlled according to the whipping power. Therefore, heating and whipping can be separately controlled in a serial mode and in a parallel mode according to the heating power and the whipping power, the sum of the heating power and the whipping power can be controlled within a preset threshold value, and reliability is improved on the premise that wall breaking effect is not influenced.
To make the present invention more clearly understood by those skilled in the art, fig. 3 is a flowchart of a control method of a food processor according to an embodiment of the present invention, and as shown in fig. 3, the control method of the food processor may include the following steps:
and S101, powering on the system and initializing.
And S102, selecting a required function by a user through a man-machine interaction interface.
And S103, the MCU of the display panel analyzes a heating signal and a whipping signal according to the detection circuit and sends the heating signal and the whipping signal to the drive board through a serial port.
S104, the MCU of the driving board analyzes a heating target temperature value T0 and a whipping gear.
And S105, the MCU of the driving plate calculates the heating power P1 and the whipping power P2 under the corresponding whipping gear according to the internal integrated algorithm program.
S106, judging whether (P1+ P2) is less than or equal to 1500W. If yes, go to step S107; if not, step S108 is performed.
And S107, the MCU of the driving board simultaneously outputs a motor control signal and a heating signal.
And S108, controlling the heating pipe to work by the MCU of the driving plate in a heating control mode of full power (1500W).
S109, the MCU of the driving board reads the temperature AD value in the cup collected by the temperature sensor every 100ms, and the internal algorithm is converted into the actual temperature T1 in the current cup.
S110, judging whether T1 is less than or equal to 0.8T 0. If yes, returning to the step S108; if not, step S111 is performed.
And S111, the MCU of the driving board controls the heating pipe to continue heating to T0 with the minimum heating power (500W), and simultaneously drives and outputs a motor control signal.
And S112, ending.
Therefore, according to the control method of the food processor provided by the embodiment of the invention, the heating target temperature value and the whipping gear are obtained, the corresponding heating power and whipping power are obtained according to the heating target temperature value and the whipping gear, whether the sum of the heating power and the whipping power is greater than the preset power threshold value is judged, if yes, the heater is controlled to be heated to the intermediate target temperature value at full power, after the intermediate target temperature value is reached, the heating target temperature value is heated from the intermediate target temperature value at the minimum heating power, and meanwhile, the driving motor is controlled according to the whipping power. Therefore, heating and whipping can be subjected to discrete serial control or parallel control, the sum of heating power and whipping power can be controlled within a preset threshold value, and the reliability is improved on the premise of not influencing the wall breaking effect.
Further, referring to fig. 1, 4-6, the driving motor 100 for the food processor 200 according to the embodiment of the present invention may include: stator core 10 and rotor core 20. Wherein, the stator core 10 may include: the stator yoke 11 may be annular, the plurality of stator teeth 12 may be disposed on an inner circumferential surface of the stator yoke 11, and the plurality of stator teeth 12 may define a stator hole 102 coaxial with the stator yoke 11, the stator yoke 11 may provide mechanical support for the plurality of stator teeth 12, so that the stator teeth 12 are fixed in position. A plurality of stator teeth 12 may be spaced apart from each other in a circumferential direction of the stator yoke 11, a stator slot 101 may be formed between two adjacent stator teeth 12, and a winding 14 of the driving motor 100 may be wound around the stator teeth 12 via the stator slot 101.
It should be noted that, in the present invention, the number of the stator teeth 12 can be flexibly set according to the actual situation, the number of the stator teeth 12 in fig. 4 is six for illustrative purposes, and in other embodiments of the present invention, the number of the stator teeth 12 can also be two, four or more, which are within the protection scope of the present invention.
In the related art, the ratio of the width of a magnetic yoke and the width of a tooth of a stator of the driving motor has no fixed value, and the ratio is usually 0.4-0.6, so that the yoke of the stator bears a larger proportion of iron loss to reduce the heating temperature rise of the tooth of the stator, but the problem of overhigh temperature rise of the yoke of the stator is brought. If can solve above-mentioned problem through the shell that overlaps a magnetic conduction on driving motor, can reduce the magnetic flux density of stator yoke portion to a certain extent, reduce the iron loss of stator yoke portion, but can increase material and processing cost.
In the present invention, as shown in fig. 4, each stator tooth 12 may include: a stator tooth body 121 and a stator tooth shoe 122. The stator tooth body 121 is connected to the stator yoke 11, so that the stator teeth 12 and the stator yoke 11 can be integrally connected. The stator tooth shoes 122 are disposed at the inner ends of the stator tooth bodies 121, so that the air gap magnetic resistance between the stator teeth 12 and the rotor core 20 can be reduced, and the magnetic field distribution can be improved.
Further, the width of the stator yoke 11 is W, and the width of each stator tooth body 121 is V. When the maximum radial dimension D of the stator core 10, which is the maximum radial dimension D of the stator core 10, is constant, W: when V is too small, the magnetic flux density of the stator tooth portion 12 is too high, and even the magnetic flux density is saturated, so that the iron loss of the stator tooth portion 12 is large and the temperature rise of the stator tooth portion 12 is too high during the operation of the stator core 10. In addition, the stator tooth slot 101 between two adjacent stator tooth portions 12 is too small, and the distance between two adjacent stator tooth portions 12 is too short, so that an electromagnetic circuit is easily formed, and the energy efficiency of the stator core 10 is reduced. If W: if V is too large, the magnetic flux density of the stator yoke 11 is too high, and even the magnetic flux density is saturated, so that the iron loss of the stator yoke 11 is large and the temperature rise is too high during the operation of the stator core 10.
Thus, in some embodiments of the invention, the width W of the stator yoke 11 and the width V of each stator tooth body 121 may satisfy W: v is 0.6-0.7, and stator yoke portion 11 and stator tooth 12 can distribute the magnetic flux density of stator core 10 more rationally, prevents that stator core 10 local temperature rise is higher, makes the temperature rise of stator core 10 more balanced to improve stator core 10 life and security performance. For example, in some embodiments of the invention, the ratio W of the width W of the stator yoke 11 to the width V of the stator tooth body 121: v may be 0.6, 0.62, 0.65, 0.68, 0.7, etc., respectively.
In the present invention, the width W of the stator yoke 11 may be understood as a distance between the inner circumferential surface and the outer circumferential surface of the annular stator yoke 11, and the width V of the stator tooth body 121 may be understood as a distance between two side surfaces of the stator tooth body 121 in the circumferential direction of the stator yoke 11.
Note that the distance between the inner circumferential surface and the outer circumferential surface of the annular stator yoke portion 11 may be the same in all places, but of course, the distance between the inner circumferential surface and the outer circumferential surface of the annular stator yoke portion 11 may not be the same in all places, and the distance between the inner circumferential surface and the outer circumferential surface of the annular stator yoke portion 11 may not be the same in all places. However, in the present invention, the width W at any position of the stator yoke 11 and the width V at any position of the stator tooth body 121 satisfy W: and V is 0.6-0.7.
The width W of the stator yoke 11 and the width V of the stator tooth body 121 of the stator core 10 for the food processor 200 according to the embodiment of the present invention satisfy W: v is 0.6-0.7, the magnetic flux density distribution is more reasonable, the temperature rise is more balanced, and the service life and the safety are favorably improved. To further make the temperature rise of the stator core 10 lower, according to a further embodiment of the present invention, the width W of the stator yoke 11 and the width V of the stator tooth body 121 may further satisfy: w: and V is 0.64-0.66.
According to some embodiments of the present invention, as shown in fig. 4, the width of the stator yoke 11 may be equal everywhere and the width of each stator tooth body 121 may be equal everywhere, so as to facilitate the mold design of the stator core 10 molding process and the process is simpler.
Further, as shown in fig. 4, the stator yoke 11 may be a circular ring shape with both a circular inner contour and a circular outer contour, and the structure of the stator yoke 11 is simple and convenient to mold.
Further, a bisector of the width of each stator tooth body 121 may pass through the center of the stator bore 102, that is, each stator tooth body 121 extends in a radial direction of the stator bore 102, which facilitates a more symmetrical and uniform magnetic field distribution.
Further, as shown with reference to fig. 4, both ends of the stator tooth shoes 122 may extend beyond the stator tooth sections 121, respectively, in the circumferential direction of the stator yoke 11, and adjacent ends of adjacent two stator tooth shoes 122 are spaced apart or connected. This makes it possible to fix the windings 14 wound around the stator teeth 12, to prevent the windings 14 from coming loose from the inner ends of the stator teeth 12, and to fix the windings 14 more reliably.
The stator core 10 according to an embodiment of the present invention may further include a plurality of positioning protrusions 13, the plurality of positioning protrusions 13 may be provided to the outer circumferential surface of the stator yoke 11 at intervals in the circumferential direction of the stator yoke 11, and each positioning protrusion 13 may extend in the radial direction of the stator yoke 11. Therefore, when the driving motor 100 is assembled, the stator core 10 can be positioned with the bracket of the driving motor 100 through the positioning protrusion 13, so that the driving motor 100 is more simply and conveniently assembled and is accurately positioned.
It should be noted that the number and the arrangement positions of the positioning protrusions 13 are not particularly limited in the present invention, for example, in the specific embodiment shown in fig. 4, the number of the positioning protrusions 13 is equal to the number of the stator teeth 12, and the positioning protrusions 13 are arranged on the outer circumferential surface of the stator yoke 11 in one-to-one correspondence with the positions of the stator teeth 12, so as to facilitate the mold design and the molding of the stator core 10. In some embodiments of the present invention, which are not shown in the drawings, the number and the positions of the positioning protrusions 13 may not correspond to the stator teeth 12 one by one, and only the requirement that the positioning protrusions 13 are spaced apart from each other on the outer circumferential surface of the stator yoke 11 to position the stator core 10 is satisfied.
Further, as shown in fig. 4, rotor core 20 may be disposed within stator bore 102, and rotor core 20 may be coaxial with stator bore 102. Rotor core 20 may rotate around an axis within stator hole 102, and an inner circumferential surface of rotor core 20 with stator hole 102 may be spaced apart by a predetermined distance to allow rotor core 20 to rotate more smoothly.
Therefore, after the current flows through the winding 14 of the driving motor 100, the plurality of stator teeth 12 form a plurality of pairs of magnetic poles, a magnetic field is generated in the stator hole 102, and the rotor core 20 positioned in the stator hole 102 can rotate around the axis under the action of the magnetic field, so that the conversion and the output of the electric energy are realized.
In the related art, the ratio of the rotor diameter to the stator diameter of the driving motor is not fixed, and is usually 0.60-0.75, and in this range, although the driving motor can output a large torque, the high-speed performance of the driving motor is poor, and the cogging torque of the driving motor is increased, and the driving motor is liable to generate vibration and large noise. If the above problem is solved by adding a field weakening effect to the algorithm of the drive control circuit, the energy efficiency of the drive motor may be reduced.
In the invention, the maximum radial dimension D of the stator yoke part 11 and the maximum radial dimension D of the rotor core 20 meet D/D is more than or equal to 0.4 and less than or equal to 0.55. For example, in some embodiments of the present invention, the ratio D/D of the maximum radial dimension D of the stator yoke 11 to the maximum radial dimension D of the rotor core 20 may be 0.45, 0.48, 0.51, 0.54, and the like, respectively.
For a stator core 10 with an equal shape, that is, the maximum radial dimension D of the stator yoke 11 is constant, when D/D is too small (e.g., less than 0.4), the maximum radial dimension D of the rotor core 20 is too small, if the driving motor 100 operates at a low speed, for example, the rotation speed of the driving motor 100 is less than 5000rpm, the load capacity of the rotor core 20 is too small, and under the working condition of driving the same load, the rotor core 20 with the too small maximum radial dimension D may generate heat seriously, which affects the normal operation of the driving motor 100, reduces the efficiency of the driving motor 100, and may even be damaged. When D/D is too large (e.g., greater than 0.55), cogging torque of the driving motor 100 may become large, and inertia moment of the rotor core 20 may become large, and if the driving motor 100 runs at a high speed, for example, when the rotation speed of the driving motor 100 is greater than 10000rpm, the driving motor 100 may vibrate, and thus generate large noise, which affects performance of the driving motor 100 and user experience.
Therefore, in some embodiments of the present invention, the maximum radial dimension D of the stator yoke 11 and the maximum radial dimension D of the rotor core 20 may satisfy D/D of 0.4 ≤ and 0.55, which may improve the output force of the rotor core 20 of the driving motor 100, improve the efficiency of the driving motor 100, prevent the rotor core 20 from generating heat, and be safer, and the maximum radial dimension D of the rotor core 20 may be made small to eliminate inertia generated by the rotor core 20 during high-speed rotation, and prevent the driving motor 100 from generating loud vibration noise.
In addition, it should be noted that, in some embodiments of the present invention, the outer contours of the stator core 10 and the rotor core 20 are circular, and the maximum radial dimension refers to the diameter of the circular outer contours of the stator core 10 and the rotor core 20. While in other embodiments of the present invention, the outer contours of the stator core 10 and the rotor core 20 are not circular, the maximum radial dimension may be understood as the dimension of the position where the radial dimension of the outer contours of the stator core 10 and the rotor core 20 through the axis is the largest.
The maximum radial dimension D of the stator yoke part 11 of the driving motor 100 for the food processor 200 and the maximum radial dimension D of the rotor core 20 according to the embodiment of the invention satisfy D/D is not less than 0.4 and not more than 0.55, so that the problems of small low-speed output force and large high-speed vibration noise of the driving motor 100 are effectively solved, and the efficiency and the safety performance of the driving motor 100 are improved. In order to further improve the low-speed output force of the driving motor 100 and reduce the high-speed noise of the driving motor 100, according to a further embodiment of the present invention, the maximum radial dimension D of the stator yoke 11 and the maximum radial dimension D of the rotor core 20 may further satisfy: D/D is more than or equal to 0.5 and less than or equal to 0.55.
According to some embodiments of the present invention, as shown in fig. 4 to 6, a plurality of magnet slots 23 may be provided in the rotor core 20, the plurality of magnet slots 23 may be provided at intervals in the circumferential direction of the rotor core 20, and both ends of the magnet slots 23 may extend to both axial ends of the rotor core 20, respectively, and the plurality of permanent magnets 25 may be inserted in the plurality of magnet slots 23 in a one-to-one correspondence.
Therefore, the permanent magnets 25 can extend to the two axial ends of the rotor core 20 in the magnet slots 23, the permanent magnets 25 are firmly and reliably fixed, and the permanent magnets 25 can be effectively prevented from loosening. And the plurality of permanent magnets 25 may form a plurality of pairs of magnetic poles to generate a magnetic field, thereby generating an induced electromotive force to realize the conversion of electric energy. The rotor core 20 adopting the permanent magnet 25 does not need to be provided with an excitation coil, so that the weight of the driving motor 100 is favorably reduced, the volume of the driving motor 100 is reduced, the excitation is not needed to be started during starting, and the starting is quicker and more energy-saving.
It should be noted that, the number of the magnet slots 23 and the permanent magnets 25 is not particularly limited, and only the requirement that the plurality of permanent magnets 25 are inserted into the plurality of magnet slots 23 in a one-to-one correspondence manner to fix the permanent magnets 25 and form a plurality of magnetic poles is required to be met. For example, in the specific embodiment shown in fig. 5 and 6, the number of the magnet grooves 23 and the permanent magnets 25 is four, respectively, and the four permanent magnets 25 are inserted in the four magnet grooves 23, respectively. For another example, in other embodiments of the present invention, the number of the magnet slots 23 and the number of the permanent magnets 25 may be two, six, eight or more, respectively, which is within the protection scope of the present invention.
In addition, each magnet groove 23 may be provided with a positioning groove 24 at least one end in the circumferential direction of the rotor core 20, the permanent magnet 25 may be inserted into the positioning groove 24 while being inserted into the magnet groove 23, and the positioning groove 24 may further define the position of the permanent magnet 25, so that the position fixation of the permanent magnet 25 is more accurate and firm.
Further, as shown in fig. 5 and 6, the linear distance of both ends of each magnet groove 23 in the circumferential direction of rotor core 20 is b, the maximum radial distance of the center of rotor core 20 from the outer circumferential surface of rotor core 20 is R, and b and R satisfy b: R ═ 0.95 to 1.0. When the b is less than 0.95, the length of the permanent magnet 25 in the magnet slot 23 is too short, so that the utilization rate of the rotor core 20 is reduced, and the energy efficiency of the driving motor 100 is reduced; when b: R > 1, the leakage flux of rotor core 20 increases, and the energy efficiency of drive motor 100 also decreases. Therefore, in some embodiments of the present invention, when b: R is 0.95-1.0, for example, in some specific embodiments of the present invention, b: R may be 0.95, 0.96, 0.97, 0.98, 0.99, 1.0, and the like, respectively, which effectively ensures energy efficiency of the driving motor 100.
According to some embodiments of the present invention, as shown in fig. 5 and 6, the minimum distance of the magnet slots 23 from the outer circumferential surface of the rotor core 20 is a1, the minimum distance of the stator slots 24 from the outer circumferential surface of the rotor core 20 is a2, and the minimum distance of the permanent magnets 25 from the outer circumferential surface of the rotor core 20 can be understood as a value of the smaller one of a1 and a2, i.e., min (a1, a 2). When min (a1, a2) is too small, the mechanical strength of rotor core 20 is reduced, and the reliability of rotor core 20 is reduced; when min (a1, a2) is too large, magnetic flux leakage of rotor core 20 increases, and energy efficiency of drive motor 100 decreases. Therefore, in some embodiments of the present invention, min (a1, a2) is 0.8mm to 1.8mm, while ensuring mechanical strength and energy efficiency of rotor core 20. For example, in some embodiments of the invention, min (a1, a2) can be 0.8mm, 1.0mm, 1.2mm, 1.4mm, 1.6mm, 1.8mm, and the like, respectively.
In addition, the present invention does not specially limit the shape of the magnet slot 23, and only needs to satisfy the requirement that the bisector of the magnet slot 23 in the length direction passes through the center of the rotor core 20, so that the magnetic field distribution generated by the permanent magnet 25 in the magnet slot 23 is more uniform. For example, in the example shown in fig. 5, the magnet grooves 23 are linear grooves having a long bar shape, the linear grooves extend in the chord direction of the rotor core 20, and the distance b between both ends of the linear grooves is the extension length of the linear grooves. In the example shown in fig. 6, the magnet slot 23 is an elongated arc-shaped slot extending in the circumferential direction of the rotor core 20, and the distance b between both ends of the arc-shaped slot is the chord length of the arc-shaped slot.
In some embodiments of the present invention, as shown in fig. 5 and 6, the outer circumferential edge of the rotor core 20 may be formed with a plurality of pole teeth 21, the plurality of pole teeth 21 may be distributed along the circumferential direction of the rotor core 20 and protrude outward, a tooth slot 22 is formed between two adjacent pole teeth 21, and, in an embodiment having a plurality of magnet slots 23, the magnet slots 23 and the pole teeth 21 may be arranged in one-to-one correspondence. At this time, the rotor core 20 is formed as a salient pole structure rotor, which can prevent magnetic flux leakage between rotor poles and cogging, as compared to a full circle-shaped rotor in the related art, thereby improving the efficiency of the rotor core 20.
In the rotor core 20 having the plurality of teeth 21, the maximum outer diameter d of the rotor core 20 is a dimension of a line connecting tooth tips of two teeth 21 whose tooth tips are connected to each other through the axis of the rotor core 20.
Further, as shown in fig. 5 and 6, the normal tooth profile of the pole teeth 21 may be formed in a circular arc shape, the outer circumference of the axial cross section of the rotor core 20 may be formed by sequentially connecting a plurality of circular arc shapes, and the tooth grooves 22 are formed at the junctions of two adjacent circular arc shapes.
As shown in fig. 5 and 6, the radius of a circle that is centered on the center of the rotor core 20 and tangent to the tooth tips of the teeth 21 is R (in this case, R is 0.5d), and the radius of a circle that is tangent to the groove bottom of the tooth slot 22 and centered on the center of the rotor core 20 is R. If R is less than 0.96, the extending length of the pole teeth 21 in the circumferential direction of the rotor core 20 is too short, and the performance of the motor 100 is reduced; if R: R > 0.98, the tooth slots 22 are too small, and noise interference caused by the tooth slots cannot be effectively reduced when the driving motor 100 is operated. Therefore, in some embodiments of the present invention, R: R is 0.96-0.98, for example, in some embodiments of the present invention, R: R may be 0.96, 0.97, 0.98, etc., respectively, which effectively reduces cogging while ensuring efficiency of the driving motor 100.
The driving motor for the food processor can be a variable frequency motor, and the variable frequency motor can provide different rotating speeds, torques, time and the like according to different types of food to be processed by the food processor, so that the food processor with the driving motor is intelligent. In addition, the variable frequency motor does not need structures such as carbon brushes and the like for reversing, so that the carbon brushes are not abraded, the running noise is lower, the service life of the food processor is prolonged, and the use feeling of a user is improved.
Optionally, in the present invention, the food processor may be a wall breaking machine, a juice extractor, a soybean milk maker, or the like. The wall breaking machine has high rotating speed, can be used for processing hard food, and can fully break the wall of a large amount of phytochemicals existing in the fruit peels, fruit cores and rhizomes in the food and release the phytochemicals; the rotating speed of the juice machine is low, and food is processed by a push type extrusion and low-flexibility extraction mode; the juice extractor has higher rotating speed, and can crush and mix more kinds of food; the soybean milk machine has higher rotating speed, and can realize the full automation of the preheating, pulping, soybean milk boiling and delayed boiling processes. The driving motor provided by the embodiment of the invention can be applied to more kinds of food cooking machines, meets more use requirements, and has stronger practicability. In addition, according to the motor stalling prevention control method of the food processor, provided by the embodiment of the invention, the mechanical stalling phenomenon of the motor can be effectively reduced, the beating performance of the food processor is effectively improved, and particularly, the food processor is used in low-speed and high-torque occasions.
In addition, an embodiment of the present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the control method of the food processor described above.
According to the non-transitory computer readable storage medium of the embodiment of the invention, by executing the control method of the food processor, the heating and the whipping can be separately controlled in series or in parallel, and then the sum of the heating power and the whipping power can be controlled within a preset threshold value, so that the reliability is improved on the premise of not influencing the wall breaking effect.
Fig. 7 is a block diagram of a control device of a food processor according to an embodiment of the invention.
In an embodiment of the present invention, as shown in fig. 1, a food processor 200 according to an embodiment of the present invention may include: a cooking container 210, a driving motor 100, a heater (not shown in the figure), and a food processing member (not shown in the figure) for processing food. Can be formed with the food that is used for holding food in the cooking container 210 and hold the chamber, food processing spare can stretch into food and hold the intracavity, holds the food of intracavity to food through the heater and carries out heat treatment, and rotates for cooking container 210 under driving of driving motor 100 to hold the food of intracavity to food and carry out further processing.
As shown in fig. 7, the control device of the food processor may include: a first obtaining module 2321, a second obtaining module 2322, a determining module 2323 and a control module 2324.
The first obtaining module 2321 is configured to obtain a heating target temperature value and a whipping gear, the second obtaining module 2322 is configured to obtain corresponding heating power and whipping power according to the heating target temperature value and the whipping gear, the determining module 2323 is configured to determine whether a sum of the heating power and the whipping power is less than or equal to a preset power threshold, and the control module 2324 is configured to control the heater to heat to an intermediate target temperature value at full power when the sum of the heating power and the whipping power is greater than the preset power threshold, heat to the heating target temperature value from the intermediate target temperature value at minimum heating power after the intermediate target temperature value is reached, and control the driving motor according to the whipping power, where the intermediate target temperature value is less than the heating target temperature value.
The control module 2324 is further configured to: and when the sum of the heating power and the whipping power is less than or equal to a preset power threshold, controlling the heater and the driving motor according to the heating power and the whipping power respectively.
According to one embodiment of the invention, the intermediate target temperature value is 70% -90% of the heating target temperature value.
According to an embodiment of the present invention, the second obtaining module 2322 is configured to: acquiring a corresponding relation table between a whipping gear and whipping power; and searching a corresponding relation table between the whipping gear and the whipping power according to the whipping gear to obtain the whipping power corresponding to the whipping gear.
According to an embodiment of the present invention, the preset power threshold is related to the maximum power that the circuit board of the food processor can bear, for example, the preset power threshold corresponds to the power of the heater when heating at full power.
It should be noted that details not disclosed in the control device of the food processor in the embodiment of the present invention refer to details disclosed in the control method of the food processor in the embodiment of the present invention, and details are not repeated herein.
According to the control device of the food processor, the heating target temperature value and the whipping gear are obtained through the first obtaining module, the corresponding heating power and whipping power are obtained through the second obtaining module according to the heating target temperature value and the whipping gear, whether the sum of the heating power and the whipping power is larger than the preset power threshold or not is judged through the judging module, when the sum of the heating power and the whipping power is larger than the preset power threshold, the control module controls the heater to be heated to the middle target temperature value at full power, after the middle target temperature value is reached, the heater is heated to the heating target temperature value from the middle target temperature value at the minimum heating power, and meanwhile, the driving motor is controlled according to the whipping power. Therefore, heating and whipping can be subjected to discrete serial control or parallel control, the sum of heating power and whipping power can be controlled within a preset threshold value, and the reliability is improved on the premise of not influencing the wall breaking effect.
In addition, the embodiment of the invention also provides a food processor, which comprises the control device of the food processor.
According to the food processor provided by the embodiment of the invention, the heating and the whipping can be separately controlled in series or in parallel through the control device of the food processor, so that the sum of the heating power and the whipping power can be controlled within a preset threshold value, and the reliability is improved on the premise of not influencing the wall breaking effect.
Fig. 8 is a block diagram of a food processor according to an embodiment of the present invention.
As shown in fig. 8, the food processor 200 includes a processor container 210, a driving motor 100, a heater 280 and a food processing member 250 for processing food, a food accommodating cavity for accommodating food is formed in the processor container 210, the food processing member 250 extends into the food accommodating cavity and rotates relative to the processor container 210 under the driving of the driving motor 100, the heater 280 is used for heating the food in the processor container 210, the food processor 200 further includes a memory 260, a processor 270 and a control program of the food processor stored on the memory 260 and capable of running on the processor 270, wherein when the control program is executed by the processor 270, the control method of the food processor is implemented, and specific reference can be made to the above description, and details are not described here.
According to the food processor provided by the embodiment of the invention, through the control method of the food processor, the heating and the whipping can be separately controlled in series or in parallel, so that the sum of the heating power and the whipping power can be controlled within a preset threshold value, and the reliability is improved on the premise of not influencing the wall breaking effect.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (17)

1. The utility model provides a control method of food processor, characterized in that, food processor includes cooking container, driving motor, heater and is used for carrying out the food processing spare of handling to food, be formed with the food that is used for holding food in the cooking container and hold the chamber, food processing spare stretches into food holds the intracavity and rotates for the cooking container under driving motor's drive, the heater is used for heating the food in the cooking container, control method includes following step:
acquiring a heating target temperature value and a whipping gear;
acquiring corresponding heating power and whipping power according to the heating target temperature value and the whipping gear;
judging whether the sum of the heating power and the whipping power is greater than a preset power threshold value;
if the temperature is higher than the preset power threshold value, controlling the heater to heat to an intermediate target temperature value at full power, wherein the intermediate target temperature value is lower than the heating target temperature value;
after the intermediate target temperature value is reached, heating from the intermediate target temperature value to the heating target temperature value with minimum heating power, and simultaneously controlling the driving motor according to the whipping power.
2. The method for controlling a food processor according to claim 1, further comprising:
and if the power is less than or equal to the preset power threshold, controlling the heater and the driving motor according to the heating power and the whipping power respectively.
3. The control method of the food processor as claimed in claim 1, wherein the intermediate target temperature value is 70% -90% of the heating target temperature value.
4. The method for controlling a food processor according to claim 1, wherein the obtaining of the corresponding whipping power according to the whipping step includes:
acquiring a corresponding relation table between a whipping gear and whipping power;
and searching a corresponding relation table between the whipping gear and the whipping power according to the whipping gear to obtain the whipping power corresponding to the whipping gear.
5. The control method of the food processor as claimed in claim 1, wherein the preset power threshold is related to the maximum power that the circuit board of the food processor can bear.
6. The method of controlling a food processor according to claim 1, wherein the preset power threshold corresponds to a power at which the heater is heated at full power.
7. A non-transitory computer-readable storage medium on which a computer program is stored, the program implementing a control method of a food processor according to any one of claims 1 to 6 when executed by a processor.
8. The utility model provides a food processor's controlling means, a serial communication port, food processor includes cooking container, driving motor, heater and is used for carrying out the food processing spare of handling to food, be formed with the food that is used for holding food in the cooking container and hold the chamber, food processing spare stretches into food holds the intracavity and is in driving motor's drive down for cooking container rotates, the heater is used for right food in the cooking container heats, controlling means includes:
the first acquisition module is used for acquiring a heating target temperature value and a whipping gear;
the second acquisition module is used for acquiring corresponding heating power and whipping power according to the heating target temperature value and the whipping gear;
the judging module is used for judging whether the sum of the heating power and the whipping power is greater than a preset power threshold value;
and the control module is used for controlling the heater to be heated to an intermediate target temperature value at full power when the sum of the heating power and the whipping power is greater than the preset power threshold value, heating to the heating target temperature value from the intermediate target temperature value at minimum heating power after the intermediate target temperature value is reached, and controlling the driving motor according to the whipping power, wherein the intermediate target temperature value is less than the heating target temperature value.
9. The control device of the food processor as claimed in claim 8, wherein the control module is further configured to:
and when the sum of the heating power and the whipping power is less than or equal to the preset power threshold, controlling the heater and the driving motor according to the heating power and the whipping power respectively.
10. The control device of a food processor as claimed in claim 8, wherein the intermediate target temperature value is 70% -90% of the heating target temperature value.
11. The control device of the food processor as claimed in claim 8, wherein the second obtaining module is configured to:
acquiring a corresponding relation table between a whipping gear and whipping power;
and searching a corresponding relation table between the whipping gear and the whipping power according to the whipping gear to obtain the whipping power corresponding to the whipping gear.
12. The control device of food processor as claimed in claim 8, wherein the preset power threshold is related to the maximum power that the circuit board of the food processor can bear.
13. The control device of a food processor according to claim 8, wherein the preset power threshold corresponds to a power at which the heater is heated at full power.
14. A food processor characterized by comprising the control device of the food processor according to any one of claims 9 to 13.
15. A food processor, characterized in that, food processor includes cooking container, driving motor, heater and is used for carrying out the food processing spare of handling to food, be formed with the food that is used for holding food in the cooking container and hold the chamber, food processing spare stretches into food holds the intracavity and is in driving of driving motor is relative to cooking container rotates, the heater is used for heating the food in cooking container, food processor still includes memory, treater and stores on the memory and can be in the control program of the food processor of operation on the treater, wherein, control program realizes the control method of food processor according to any one of claims 1-6 when being executed by the treater.
16. The food processor of claim 15, wherein the drive motor comprises:
the stator core comprises an annular stator yoke portion and a plurality of stator tooth portions, the width of the stator yoke portion is W, the plurality of stator tooth portions are arranged on the inner circumferential surface of the stator yoke portion, a stator tooth slot is formed between every two adjacent stator tooth portions, the plurality of stator tooth portions define a stator hole coaxial with the stator yoke portion, each stator tooth portion comprises a stator tooth portion main body connected with the stator yoke portion and a stator tooth shoe arranged at the inner end of the stator tooth portion main body, the width of each stator tooth portion main body is V, and W: v is 0.6-0.7;
and the rotor core is rotatably arranged in the stator hole and is coaxial with the stator hole.
17. The food processor of claim 15, wherein the drive motor comprises:
the stator core comprises an annular stator yoke portion and a plurality of stator tooth portions arranged on the inner circumferential surface of the stator yoke portion, a stator tooth slot is formed between every two adjacent stator tooth portions, the plurality of stator tooth portions define a stator hole coaxial with the stator yoke portion, and the maximum radial dimension of the stator yoke portion is D;
rotor core, rotor core rotationally establishes in the stator hole and with the stator hole is coaxial, rotor core's maximum radial dimension is D, and wherein, D and D satisfy: D/D is more than or equal to 0.4 and less than or equal to 0.55.
CN201810637152.0A 2018-06-20 2018-06-20 Food processor and control method and control device thereof Active CN110618727B (en)

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