CN114732300A - Food processing equipment and food processing method thereof - Google Patents
Food processing equipment and food processing method thereof Download PDFInfo
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- CN114732300A CN114732300A CN202210468121.3A CN202210468121A CN114732300A CN 114732300 A CN114732300 A CN 114732300A CN 202210468121 A CN202210468121 A CN 202210468121A CN 114732300 A CN114732300 A CN 114732300A
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- 235000013305 food Nutrition 0.000 title claims abstract description 71
- 238000003672 processing method Methods 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims abstract description 9
- 239000003990 capacitor Substances 0.000 claims description 27
- 238000001514 detection method Methods 0.000 claims description 10
- 230000003993 interaction Effects 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 4
- 210000004899 c-terminal region Anatomy 0.000 claims 1
- 230000009471 action Effects 0.000 abstract description 4
- 238000004804 winding Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 3
- 239000008267 milk Substances 0.000 description 3
- 210000004080 milk Anatomy 0.000 description 3
- 235000013336 milk Nutrition 0.000 description 3
- 238000010009 beating Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000015203 fruit juice Nutrition 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Classifications
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- 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
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- 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
- A47J19/00—Household machines for straining foodstuffs; Household implements for mashing or straining foodstuffs
- A47J19/02—Citrus fruit squeezers; Other fruit juice extracting devices
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- 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
- A47J43/0465—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 with magnetic drive
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Food-Manufacturing Devices (AREA)
Abstract
The invention discloses a food processing device and a food processing method thereof, wherein the food processing device comprises a base and a cup body arranged on the base, and the food processing device also comprises: the stator assembly is arranged in the base; the rotor assembly is arranged on the cup body and is opposite to the stator assembly; the cutter is arranged on the rotor component; the driving module is connected with the stator assembly and is used for driving the stator assembly to generate a rotating magnetic field; and the control module is connected with the driving module and is used for controlling the driving module to drive the stator assembly to work. According to the food processing device, the control module controls the driving module to drive the stator assembly to generate the rotating magnetic field, the rotor assembly rotates under the action of the rotating magnetic field generated by the stator assembly, and the rotor assembly synchronously drives the cutter to synchronously rotate in the cup body so as to process food in the cup body.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to food processing equipment and a food processing method thereof.
Background
Food processing equipment generally includes cup body, drive arrangement and cutter etc. drive arrangement usually is driving motor, and the stage property is installed on driving motor's bearing, drives the bearing rotation through driving motor, and the utmost point ear drives the cutter under the rotatory effect of bearing and rotates in the cup body to realize handling (for example milk, press the fruit juice etc.) to the food in the cup body. However, in the conventional food processing equipment such as a milk maker and a wall breaking machine, the cup body of the conventional food processing equipment is usually connected with the driving device into a whole, which causes inconvenience to users in the using process.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
In view of the above-mentioned deficiencies of the prior art, the present invention provides a food processing apparatus and a food processing method thereof, which solves the problem that the cup body and the driving device are connected into a whole to cause inconvenience for users in the conventional food processing apparatus.
The technical scheme of the invention is as follows:
a food processing apparatus, includes the base and sets up cup on the base, it still includes:
a stator assembly disposed within the base;
the rotor assembly is arranged on the cup body and is opposite to the stator assembly;
a cutter disposed on the rotor assembly;
the driving module is connected with the stator assembly and is used for driving the stator assembly to generate a rotating magnetic field;
the control module is connected with the driving module and is used for controlling the driving module to drive the stator assembly to work;
in a further arrangement of the invention, the food processing apparatus further comprises: and the speed detection module is respectively connected with the driving module and the control module and is used for detecting the rotating speed of the rotor assembly and feeding the rotating speed back to the control module.
According to a further aspect of the invention, the stator assembly includes a coil having an end a, an end B, and an end C;
the rotor assembly includes at least one pair of permanent magnets.
In a further aspect of the invention, the drive module comprises: the driving circuit comprises a driving chip, a first switching tube, a second switching tube, a third switching tube, a fourth switching tube, a fifth switching tube, a sixth switching tube and a first resistor; wherein the content of the first and second substances,
the first end of the first switch tube is connected with the first pin of the driving chip, and the second end of the first switch tube is connected with the end A of the coil;
the first end of the second switch tube is connected with the second pin of the driving chip, and the second end of the second switch tube is connected with the end B of the coil;
the first end of the third switch tube is connected with the third pin of the driving chip, and the second end of the third switch tube is connected with the end C of the coil;
a first end of the fourth switching tube is connected with a sixth pin of the driving chip, a second end of the fourth switching tube is connected with one end of the first resistor, and a third end of the fourth switching tube is connected with the end A of the coil;
a first end of the fifth switching tube is connected with a fifth pin of the driving chip, a second end of the fifth switching tube is connected with one end of the first resistor, and a third end of the fifth switching tube is connected with the end B of the coil;
the first end of the sixth switching tube is connected with the third pin of the driving chip, the second end of the sixth switching tube is connected with one end of the first resistor, and the third end of the sixth switching tube is connected with the C end of the coil;
the third ends of the first switching tube, the second switching tube and the third switching tube are connected with power supply signals;
the other end of the first resistor is grounded;
the driving chip is connected with the control module.
The control module further comprises a controller, wherein a first pin of the driving chip is connected with a first pin of the controller, a second pin of the driving chip is connected with a second pin of the controller, a third pin of the driving chip is connected with a third pin of the controller, a fourth pin of the driving chip is connected with a fourth pin of the controller, a fifth pin of the driving chip is connected with a fifth pin of the controller, and a sixth pin of the driving chip is connected with a sixth pin of the controller; the first pin, the second pin, the third pin, the fourth pin, the fifth pin and the sixth pin of the controller are PWM control pins; the controller controls the driving module to periodically supply power to the coil according to the sequence AB-AC-BC-BA-CA-CB.
In a further aspect of the present invention, the speed detection module comprises: the circuit comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a first capacitor, a fifth resistor, a sixth resistor, a seventh resistor, a second capacitor, an eighth resistor, a ninth resistor, a tenth resistor and a third capacitor; wherein the content of the first and second substances,
one end of the second resistor is connected with the end A of the coil, the other end of the second resistor is respectively connected with the driving chip and one end of the third resistor, the other end of the third resistor is grounded, one end of the first capacitor is respectively connected with one ends of the third resistor and the fourth resistor, and the other end of the fourth resistor and the other end of the first capacitor are grounded;
one end of the fifth resistor is connected with the end B of the coil, the other end of the fifth resistor is respectively connected with the driving chip and one end of the sixth resistor, the other end of the sixth resistor is grounded, one end of the second capacitor is respectively connected with one ends of the sixth resistor and the seventh resistor, and the other end of the seventh resistor and the other end of the second capacitor are grounded;
one end of the eighth resistor is connected with the end C of the coil, the other end of the eighth resistor is connected with the driving chip and one end of the ninth resistor respectively, the other end of the ninth resistor is grounded, one end of the third capacitor is connected with the ninth resistor and one end of the tenth resistor respectively, and the other end of the tenth resistor and the other end of the third capacitor are grounded.
The cup is further provided with a groove, the cup body is provided with a first boss matched with the groove, and the first boss is accommodated in the groove.
According to the further arrangement of the invention, a second boss is arranged on the base, the second boss is provided with a first accommodating cavity, and the stator assembly is arranged in the first accommodating cavity;
and a third boss is arranged at the position of the cup body corresponding to the second boss, the third boss is provided with a second accommodating cavity, the rotor assembly is arranged on the third boss, and the second boss is arranged in the second accommodating cavity.
In a further arrangement of the invention, the food processing apparatus further comprises: the power module is respectively connected with the display module, the control module and the driving module and used for supplying power to the display module, the control module and the driving module; the display module is also connected with the control module and used for displaying the parameters fed back by the control module.
A food processing method applied to the food processing device, comprising:
the control module controls the driving module to drive the stator assembly to generate a rotating magnetic field;
the rotor assembly rotates under the interaction of a rotating magnetic field generated by the stator assembly;
the rotor component synchronously drives the cutter to synchronously rotate in the cup body so as to process the food in the cup body.
The invention provides a food processing device and a food processing method thereof, wherein the food processing device comprises a base and a cup body arranged on the base, and the food processing device also comprises: a stator assembly disposed within the base; the rotor assembly is arranged on the cup body and is opposite to the stator assembly; a cutter disposed on the rotor assembly; the driving module is connected with the stator assembly and is used for driving the stator assembly to generate a rotating magnetic field; and the control module is connected with the driving module and used for controlling the driving module to drive the stator assembly to work. According to the food processing device, the control module controls the driving module to drive the stator assembly to generate the rotating magnetic field, the rotor assembly rotates under the interaction of the rotating magnetic field generated by the stator assembly, and the rotor assembly synchronously drives the cutter to synchronously rotate in the cup body so as to process food in the cup body.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a control schematic block diagram of a food processing apparatus according to the present invention.
Fig. 2 is a sectional view of the food processing apparatus of the present invention.
Fig. 3 is an equivalent schematic diagram of the coil of the present invention.
Fig. 4 is a schematic circuit diagram of the driving module and the control module according to the present invention.
Fig. 5 is a schematic circuit diagram of the speed detection module of the present invention.
Fig. 6 is a waveform diagram of current and back emf during one cycle of rotor rotation.
Fig. 7 is a schematic flow diagram of a food processing method of the food processing apparatus of the present invention.
The various symbols in the drawings: 1. a base; 11. a groove; 12. a second boss; 2. a cup body; 21. a first boss; 22. a third boss; 3. a stator assembly; 4. a rotor assembly; 5. a cutter; 6. a drive module; 7. a control module; 8. a speed detection module; 9. a power supply module; 10. and a display module.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the embodiments and claims, the articles "a", "an", "the" and "the" may include plural forms as well, unless the context specifically dictates otherwise. If there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is 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 at least one of the feature.
It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1 to 6, the present invention provides a food processing apparatus according to a preferred embodiment.
As shown in fig. 1 to 3, the present invention provides a food processing apparatus, which includes a base 1, a cup 2, a stator assembly 3, a rotor assembly 4, a cutter 5, a driving module 6, and a control module 7. The cup body 2 is arranged on the base 1, the stator assembly 3 is arranged in the base 1, the rotor assembly 4 is arranged on the cup body 2 and is opposite to the stator assembly 3, the cutter 5 is arranged on the rotor assembly 4, the driving module 6 is connected with the stator assembly 3 and is used for driving the stator assembly 3 to generate a rotating magnetic field, and the control module 7 is connected with the driving module 6 and is used for controlling the driving module 6 to drive the stator assembly 3 to work.
Specifically, the stator assembly 3 includes a base, an iron core, and a coil, the coil has an end a, an end B, and an end C, and the rotor assembly 4 includes a base and a permanent magnet. The stator assembly 3 can generate a rotating magnetic field in a power-on state, the stator assembly 3 and the rotor assembly 4 are arranged oppositely, and the permanent magnets can generate interaction under the action of the rotating magnetic field, so that the stator assembly 3 generates rotating action, and the cutter 5 is installed on the stator assembly 3, so that the cutter 5 can be driven to rotate synchronously under the rotation of the stator assembly 3. When food processing is needed, the control module 7 controls the driving module 6 to drive the stator assembly 3 to generate a rotating magnetic field to drive the rotor assembly 4 and the cutter 5 to rotate, so that food processing functions such as milk beating, fruit juice beating and the like are realized. Because stator module 3 with rotor module 4 does not need the direct connection, so cup 2 with base 1 is separable, does not need the motor to realize food processing function like this, has both made things convenient for user's use, can improve electric quantity availability factor again, increases food processing equipment's life. In addition, the cutter 5 is directly installed on the rotor assembly 4, so that the replacement of the cutter 5 is facilitated.
Referring to fig. 1 and 4, in a further implementation of an embodiment, the driving module 6 includes: the driving circuit comprises a driving chip U1, a first switching tube Q1, a second switching tube Q2, a third switching tube Q3, a fourth switching tube Q4, a fifth switching tube Q5, a sixth switching tube Q6 and a first resistor R1; a first end of the first switch tube Q1 is connected to the first pin of the driving chip U1, and a second end (U end) of the first switch tube Q1 is connected to the a end of the coil; a first end of the second switching tube Q2 is connected with the second pin of the driving chip U1, and a second end (V end) of the second switching tube Q2 is connected with the B end of the coil; a first end of the third switching tube Q3 is connected with the third pin of the driving chip U1, and a second end (W end) of the third switching tube Q3 is connected with the C end of the coil; a first end of the fourth switching tube Q4 is connected to the sixth pin of the driving chip U1, a second end of the fourth switching tube Q4 is connected to one end of the first resistor R1, and a third end (U end) of the fourth switching tube Q4 is connected to the a end of the coil; a first end of the fifth switching tube Q5 is connected to the fifth pin of the driving chip U1, a second end of the fifth switching tube Q5 is connected to one end of the first resistor R1, and a third end (V end) of the fifth switching tube Q5 is connected to the B end of the coil; a first end of the sixth switching tube Q6 is connected to the third pin of the driving chip U1, a second end of the sixth switching tube Q6 is connected to one end of the first resistor R1, and a third end (W end) of the sixth switching tube Q6 is connected to the C end of the coil; the third ends of the first switch tube Q1, the second switch tube Q2 and the third switch tube Q3 are connected with power supply signals; the other end of the first resistor R1 is grounded; the driving chip U1 is connected to the control module 7.
Further, the control module 7 includes a controller MCU, a first pin of the driver chip U1 is connected to a first pin of the controller MCU, a second pin of the driver chip U1 is connected to a second pin of the controller MCU, a third pin of the driver chip U1 is connected to a third pin of the controller MCU, a fourth pin of the driver chip U1 is connected to a fourth pin of the controller MCU, a fifth pin of the driver chip U1 is connected to a fifth pin of the controller MCU, and a sixth pin of the driver chip U1 is connected to a sixth pin of the controller MCU; the first pin, the second pin, the third pin, the fourth pin, the fifth pin and the sixth pin of the controller MCU are PWM control pins; the controller MCU controls the driving module 6 to periodically supply power to the coils according to the sequence AB-AC-BC-BA-CA-CB.
Specifically, the six-step commutation method is adopted to periodically supply power to the coils according to the AB-AC-BC-BA-CA-CB sequence. When the first switch tube Q1 and the sixth switch tube Q6 are turned on and the other switch tubes are turned off, the power signal M + flows back to the ground GND through the first switch tube Q1, the a winding, the C winding, the sixth switch tube Q6 and the first resistor R1, and the current flowing through the A, C-phase stator winding generates a magnetic field, which is known from the right-hand rule and is parallel to the B winding. Because the rotor is provided with the permanent magnet, the permanent magnet can rotate towards the direction parallel to the magnetic field of the stator under the action of the magnetic field force, namely, the permanent magnet rotates to the position parallel to the phase B winding, so that the north magnetic pole of the rotor is aligned with the south magnetic pole of the magnetic field of the stator. Similarly, the flow direction of the current can be controlled by opening different upper and lower bridge arm switch tube combinations, and magnetic fields in different directions are generated, so that the rotor rotates to a specified position. To continue rotation of the rotor in the desired direction, the stator windings must be energized in a sequence. Switching from one energization state to another is referred to as "commutation," e.g., from AB energization to AC energization. The rotor is rotated to the next position by phase change, and the upper bridge arm and the lower bridge arm are respectively provided with 3 switching tubes which are combined in six combinations, so that the rotor can be rotated for one electric period by six-step phase change after the rotor is changed once every 60 degrees. To maximize the torque of the rotor, it is desirable to have the stator field perpendicular to the rotor field. But in practice it is not possible to keep them 90 ° out of phase at all times, since the stator field direction changes every 60 °, while the rotor (tool) rotates constantly. The optimization method is that the stator magnetic field leads the rotor magnetic field direction by 120 degrees in electrical angle during each phase change, so that the included angle between the stator magnetic field and the rotor magnetic field direction is changed from 120 degrees to 60 degrees in the subsequent rotor rotation process, and the utilization rate of the torque is highest.
In some embodiments, the first switch tube Q1, the second switch tube Q2, the third switch tube Q3, the fourth switch tube Q4, the fifth switch tube Q5, and the sixth switch tube Q6 are N-type MOS tubes.
The first resistor R1 is a current detection resistor, and the magnitude of the output current of the driving module 6 is detected through the first resistor R1, so as to prevent the stator assembly 3 from being damaged due to excessive current.
Referring to fig. 1, in a further implementation of an embodiment, the food processing apparatus further includes: and the power supply module 9, the power supply module 9 is respectively connected with the driving module 6 and the controller MCU to supply power to the controller MCU and the driving module 6, wherein the power supply module 9 is used for supplying a power signal M + to the driving module 6.
Referring to fig. 1 and 5, in a further implementation of an embodiment, the food processing apparatus further includes: and the speed detection module 8, wherein the speed detection module 8 is respectively connected with the driving module 6 and the control module 7, and is configured to detect a rotation speed of the rotor assembly 4 and feed back the rotation speed to the control module 7.
Specifically, the speed detection module 8 includes: a second resistor R2, a third resistor R3, a fourth resistor R4, a first capacitor C1, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, a second capacitor C2, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10 and a third capacitor C3; one end (a U end, a corresponding a end connected to the coil) of the second resistor R2 is connected to the a end of the coil, the other end of the second resistor R2 is connected to one end of the driving chip U1 and one end of the third resistor R3, the other end of the third resistor R3 is grounded, one end of the first capacitor C1 is connected to one end of the third resistor R3 and one end of the fourth resistor R4, and the other end of the fourth resistor R4 and the other end of the first capacitor C1 are grounded; one end (a V end, a corresponding V end connected to a coil) of the fifth resistor R5 is connected to the B end of the coil, the other end of the fifth resistor R5 is connected to one ends of the driving chip U1 and the sixth resistor R6, the other end of the sixth resistor R6 is grounded, one end of the second capacitor C2 is connected to one ends of the sixth resistor R6 and the seventh resistor R7, and the other end of the seventh resistor R7 and the other end of the second capacitor C2 are grounded; one end (W end, corresponding to the C end of the coil) of the eighth resistor R8 is connected to the C end of the coil, the other end of the eighth resistor R8 is connected to the driving chip U1 and one end of the ninth resistor R9, the other end of the ninth resistor R9 is grounded, one end of the third capacitor C3 is connected to the ninth resistor R9 and one end of the tenth resistor R10, and the other end of the tenth resistor R10 and the other end of the third capacitor C3 are grounded.
In FIG. 5, Bef-U, Bef-V and Bef-W are the back electromotive forces induced by the three windings A, B and C, respectively. Bef-U, Bef-V, Bef-W are respectively connected to an ADC comparator and an ADC sampling pin of the controller MCU. Rotation of the rotor assembly 4 generates a varying magnetic field inside the rotor, and each phase winding induces a back electromotive force (BEMF) according to the law of electromagnetic induction. The BEMF waveform appears as a trapezoid as a whole as a function of the position and speed of the rotor (tool 5). Fig. 6 shows waveforms of current and counter electromotive force in an electrical cycle of rotor rotation, in which a solid line represents current, a dotted line represents counter electromotive force, and an abscissa is an electrical angle of rotor rotation, and according to a control manner, only two phases of three-phase BLDC are energized at any time, the other phase is open, the three phases are energized two by two, and six combinations are provided, and the six combinations are changed every 60 ° in a certain sequence, so that a rotating magnetic field is generated to pull the permanent magnet rotor to rotate. It should be noted that, where 60 ° refers to an electrical angle, an electrical cycle may not correspond to a complete mechanical rotation cycle of the rotor.
As can be seen from fig. 6, in the middle of each two commutation points, there corresponds a point where the polarity of the back electromotive force changes, i.e., a point where the back electromotive force changes from positive to negative or from negative to positive, which is called a zero-crossing point. By using the characteristic of the back electromotive force, the zero crossing point of the back electromotive force can be accurately detected and delayed by 30 degrees, namely the time when the phase is required to be changed. Meanwhile, the zero-crossing period can be calculated, and the real-time rotating speed of the rotor can be calculated through the zero-crossing period, so that the duty ratio of PWM can be adjusted through the MCU according to the requirement to realize speed control.
The invention is characterized in that the speed of the rotating magnetic field of the stator component 3 and the speed of the rotor are synchronous, so that the coil on the stator component 3 is periodically excited to generate a magnetic field, and according to the right-hand law, the N and S poles of the magnetic field and the N and S poles of the permanent magnet on the rotor form the principle that the homopolar poles repel each other and the heteropolar poles attract each other, thereby driving the rotor component 4 to rotate according to the speed of the rotating magnetic field and realizing the function of food processing.
Referring to fig. 2, in a further implementation manner of an embodiment, a groove 11 is formed on the base 1, a first boss 21 adapted to the groove 11 is formed on the cup body 2, and the first boss 21 is accommodated in the groove 11.
Specifically, when the cup body 2 is placed on the base 1, the first boss 21 can be completely accommodated in the groove 11, so that the cup body 2 does not shake greatly when the cutter 5 on the rotor assembly 4 is used for food processing.
With reference to fig. 2, in a further implementation manner of an embodiment, a second boss 12 is disposed on the base 1, the second boss 12 has a first accommodating cavity, and the stator assembly 3 is disposed in the first accommodating cavity; a third boss 22 is arranged at a position of the cup body 2 corresponding to the second boss 12, the third boss 22 is provided with a second accommodating cavity, the rotor assembly 4 is arranged on the third boss 22, and the second boss 12 is arranged in the second accommodating cavity.
Specifically, the second boss 12 and the first boss 21 are coaxially disposed, the stator assembly 3 is disposed in the first receiving cavity, the rotor assembly 4 is disposed on the third boss 22, and when the cup body 2 is disposed on the base 1, the second boss 12 is disposed in the second receiving cavity. When the driving module 6 drives the stator 3 assembly to generate a rotating magnetic field, the rotor assembly 4 drives the cutter 5 to rotate in the cup body 2 under the interaction of the magnetic field, so as to process food in the cup body 2.
Referring to fig. 1, in a further implementation of an embodiment, the food processing apparatus further includes: and the display module 10, the display module 10 is electrically connected to the power module 9 and the control module 7, respectively, and the display module 10 can display data (for example, the rotating speed) fed back by the current control module 7.
In a further implementation of an embodiment, the food processing apparatus further comprises: and the key (or the potentiometer) is connected with the controller, and the key can be an on-off key or a key with other functions.
Referring to fig. 7, in some embodiments, the present invention further provides a food processing method applied to the food processing apparatus, which includes the steps of:
s100, the control module controls the driving module to drive the stator assembly to generate a rotating magnetic field; as described in the embodiment of the food processing apparatus, details are not repeated herein.
S200, the rotor assembly rotates under the interaction of a rotating magnetic field generated by the stator assembly; as described in an embodiment of the food processing apparatus, details are not repeated herein.
S300, the rotor component synchronously drives the cutter to synchronously rotate in the cup body so as to process the food in the cup body. As described in the embodiment of the food processing apparatus, details are not repeated herein.
In summary, the present invention provides a food processing apparatus and a food processing method thereof, wherein the food processing apparatus includes a base and a cup body disposed on the base, and further includes: a stator assembly disposed within the base; the rotor assembly is arranged on the cup body and is opposite to the stator assembly; a cutter disposed on the rotor assembly; the driving module is connected with the stator assembly and is used for driving the stator assembly to generate a rotating magnetic field; and the control module is connected with the driving module and used for controlling the driving module to drive the stator assembly to work. According to the food processing device, the control module controls the driving module to drive the stator assembly to generate the rotating magnetic field, the rotor assembly rotates under the interaction of the rotating magnetic field generated by the stator assembly, and the rotor assembly synchronously drives the cutter to synchronously rotate in the cup body so as to process food in the cup body.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a food processing equipment, includes the base and sets up cup on the base, its characterized in that still includes:
a stator assembly disposed within the base;
the rotor assembly is arranged on the cup body and is opposite to the stator assembly;
a cutter disposed on the rotor assembly;
the driving module is connected with the stator assembly and is used for driving the stator assembly to generate a rotating magnetic field;
and the control module is connected with the driving module and used for controlling the driving module to drive the stator assembly to work.
2. The food processing apparatus of claim 1, further comprising: and the speed detection module is respectively connected with the driving module and the control module and is used for detecting the rotating speed of the rotor assembly and feeding the rotating speed back to the control module.
3. The food processing apparatus of claim 2, wherein the stator assembly includes a coil having an a-terminal, a B-terminal, and a C-terminal;
the rotor assembly includes at least one pair of permanent magnets.
4. A food processing device according to claim 3, wherein the drive module comprises: the driving circuit comprises a driving chip, a first switching tube, a second switching tube, a third switching tube, a fourth switching tube, a fifth switching tube, a sixth switching tube and a first resistor; wherein the content of the first and second substances,
the first end of the first switch tube is connected with the first pin of the driving chip, and the second end of the first switch tube is connected with the end A of the coil;
the first end of the second switch tube is connected with the second pin of the driving chip, and the second end of the second switch tube is connected with the end B of the coil;
the first end of the third switch tube is connected with the third pin of the driving chip, and the second end of the third switch tube is connected with the end C of the coil;
a first end of the fourth switching tube is connected with a sixth pin of the driving chip, a second end of the fourth switching tube is connected with one end of the first resistor, and a third end of the fourth switching tube is connected with the end A of the coil;
a first end of the fifth switching tube is connected with a fifth pin of the driving chip, a second end of the fifth switching tube is connected with one end of the first resistor, and a third end of the fifth switching tube is connected with the end B of the coil;
the first end of the sixth switching tube is connected with the third pin of the driving chip, the second end of the sixth switching tube is connected with one end of the first resistor, and the third end of the sixth switching tube is connected with the C end of the coil;
the third ends of the first switching tube, the second switching tube and the third switching tube are connected with power supply signals;
the other end of the first resistor is grounded;
the driving chip is connected with the control module.
5. The food processing apparatus of claim 4, wherein the control module includes a controller, the first pin of the driver chip is connected to the first pin of the controller, the second pin of the driver chip is connected to the second pin of the controller, the third pin of the driver chip is connected to the third pin of the controller, the fourth pin of the driver chip is connected to the fourth pin of the controller, the fifth pin of the driver chip is connected to the fifth pin of the controller, and the sixth pin of the driver chip is connected to the sixth pin of the controller; the first pin, the second pin, the third pin, the fourth pin, the fifth pin and the sixth pin of the controller are PWM control pins; the controller controls the driving module to periodically supply power to the coil according to the sequence AB-AC-BC-BA-CA-CB.
6. A food processing apparatus according to claim 3, wherein the speed detection module comprises: the circuit comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a first capacitor, a fifth resistor, a sixth resistor, a seventh resistor, a second capacitor, an eighth resistor, a ninth resistor, a tenth resistor and a third capacitor; wherein the content of the first and second substances,
one end of the second resistor is connected with the end A of the coil, the other end of the second resistor is respectively connected with the driving chip and one end of the third resistor, the other end of the third resistor is grounded, one end of the first capacitor is respectively connected with one ends of the third resistor and the fourth resistor, and the other end of the fourth resistor and the other end of the first capacitor are grounded;
one end of the fifth resistor is connected with the end B of the coil, the other end of the fifth resistor is respectively connected with the driving chip and one end of the sixth resistor, the other end of the sixth resistor is grounded, one end of the second capacitor is respectively connected with one ends of the sixth resistor and the seventh resistor, and the other end of the seventh resistor and the other end of the second capacitor are grounded;
one end of the eighth resistor is connected with the end C of the coil, the other end of the eighth resistor is connected with the driving chip and one end of the ninth resistor respectively, the other end of the ninth resistor is grounded, one end of the third capacitor is connected with the ninth resistor and one end of the tenth resistor respectively, and the other end of the tenth resistor and the other end of the third capacitor are grounded.
7. The food processing apparatus of claim 1, wherein the base has a recess formed therein, and the cup has a first boss received in the recess and adapted to fit into the recess.
8. The food processing apparatus of claim 7, wherein the base is provided with a second boss having a first receiving cavity, the stator assembly being disposed in the first receiving cavity;
the cup body is provided with a third boss corresponding to the second boss, the third boss is provided with a second accommodating cavity, the rotor assembly is arranged on the third boss, and the second boss is arranged in the second accommodating cavity.
9. The food processing apparatus of claim 1, further comprising: the power module is respectively connected with the display module, the control module and the driving module and used for supplying power to the display module, the control module and the driving module; the display module is also connected with the control module and used for displaying the parameters fed back by the control module.
10. A food processing method applied to the food processing apparatus of any one of claims 1 to 9, comprising:
the control module controls the driving module to drive the stator assembly to generate a rotating magnetic field;
the rotor assembly rotates under the interaction of a rotating magnetic field generated by the stator assembly;
the rotor component synchronously drives the cutter to synchronously rotate in the cup body so as to process the food in the cup body.
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| CN202210468121.3A CN114732300A (en) | 2022-04-29 | 2022-04-29 | Food processing equipment and food processing method thereof |
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| CN202210468121.3A CN114732300A (en) | 2022-04-29 | 2022-04-29 | Food processing equipment and food processing method thereof |
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