Food processor and food processor control method

Abstract

The application provides a food processor and a food processor control method. The main machine of the food processor comprises a machine head and a first motor, the machine head comprises a second motor and an upper suction accessory, the stirring device comprises a lower suction accessory, and the main machine or the stirring device comprises a coil. The control circuit comprises a function selection circuit and a controller. The controller is configured to control the first motor to drive the machine head to move to a suction position and control the second motor to drive the upper suction accessory to rotate in response to a food processing function selection instruction. After the food processing work is completed, the coil is controlled to be powered on, and when the duration of the power-on of the coil reaches a first duration threshold, the first motor is controlled to drive the machine head to move to a disengagement position. The food processor control method comprises the following steps: controlling the first motor to drive the machine head to move to a suction position; controlling the second motor to drive the upper suction accessory to rotate; after the food processing work is completed, the coil is controlled to be powered on and the first motor is controlled to drive the machine head to move to a disengagement position. The application is simple to operate.

Description

Technical Field

[0001] This application relates to the field of small household appliance technology, and in particular to a food processor and a food processor control method. Background Technology

[0002] As people's living standards continue to improve, many different types of food processors have appeared on the market. The functions of a food processor can include, but are not limited to, making soy milk, juicing, rice paste, mincing meat, shaved ice, making coffee, and / or preparing face masks. Food processors can include machines that pulverize and blend food, such as soy milk makers, blenders, or high-speed blenders.

[0003] The pulverizing blades of this type of food processor are located on the blade shaft, and a magnet is placed between the motor shaft and the blade shaft. The magnetic attraction between the magnets causes the motor shaft to drive the blade shaft to rotate, thus pulverizing the food. When starting or stopping the food processor, the user needs to manually align or misalign the motor shaft and the blade shaft, which is cumbersome. Furthermore, if they are not perfectly aligned, the food processor is prone to shaking during operation. Summary of the Invention

[0004] This application provides a food processor that is easy to operate and does not easily vibrate during blending, as well as a food processor control method.

[0005] This application provides a food processor, including a main unit, a mixing device, and a control circuit. The main unit includes a head and a first motor connected to the head, the head being located above the mixing device. The head includes a second motor and an upper suction element connected to the second motor. The mixing device includes a lower suction element. The main unit or the mixing device includes a coil. The control circuit includes a function selection circuit and a controller. The controller is electrically connected to the first motor, the second motor, the coil, and the function selection circuit.

[0006] The machine head includes a suction position and a release position. In the suction position, the upper suction member and the lower suction member are opposite to each other. In the release position, the upper suction member and the lower suction member are offset. The first motor is used to drive the machine head to move between the suction position and the release position.

[0007] The controller is used to respond to a cooking function selection command generated by the user operation of the function selection circuit, control the first motor to drive the head to the suction position, and control the second motor to drive the upper suction element to rotate. The magnetic attraction between the upper suction element and the lower suction element drives the lower suction element to rotate, thereby driving the stirring device to rotate. After the food processor finishes cooking, the controller controls the coil to be energized to reduce or eliminate the magnetic attraction between the upper suction element and the lower suction element, and controls the first motor to drive the head to move to the disengagement position.

[0008] In some embodiments, when the food processor starts working, the controller controls the first motor to drive the head to the suction position, and after the food processor finishes working, the controller controls the first motor to drive the head to the disengagement position.

[0009] This eliminates the need for users to manually align or separate the head and mixing device, simplifying operation and improving user experience. Furthermore, the automatic control of the first motor to drive the head makes it easier to align the head and mixing device, thereby reducing machine vibration during mixing.

[0010] Optionally, the controller is configured to control the first motor to drive the head to the disengagement position when the food processor finishes its food processing and the coil has been energized for a first time threshold. In some embodiments, controlling the head to move to the disengagement position after the coil has been energized for the first time threshold ensures that the magnetic attraction between the upper and lower suction components is sufficiently weak or completely demagnetized before the head begins to move, making it easier for the head to separate from the mixing device and preventing the food processor from tilting. Furthermore, waiting until the first time threshold is reached before controlling the first motor to drive the head allows the mixing device to stop rotating, thereby improving safety.

[0011] Optionally, the controller is configured to energize the coil in response to the cooking function selection command until the head moves to the engaging position. In some embodiments, keeping the coil energized during the movement of the head to the engaging position ensures that the magnetic attraction between the upper and lower adsorption components is small or nonexistent, preventing a large magnetic attraction from hindering the movement of the head, thereby facilitating the movement of the head to the engaging position.

[0012] Optionally, the control circuit includes a position detection circuit, which generates a first electrical signal when the machine head is in the suction position;

[0013] The controller is electrically connected to the position detection circuit and is used to control the coil to be de-energized and control the second motor to drive the upper suction component to rotate when the time elapsed since receiving the first electrical signal reaches a second time threshold. In some embodiments, the position detection circuit can detect the position of the head. When the head is in the suction position for the second time threshold, it controls the coil to be de-energized and controls the second motor to drive the upper suction component to start the food processing. This ensures that the head is fully rotated to the suction position and the food processor starts working only after the head is fully aligned with the mixing device, reducing the degree of shaking caused by poor suction or incomplete alignment, and making the food processor work more stably.

[0014] Optionally, when the machine head is in the disengaged position, the position detection circuit generates a second electrical signal;

[0015] The controller is used to control the first motor to drive the head to move towards the disengagement position when the duration of coil energization reaches a first time threshold after the food processor finishes its food processing operation, until the controller receives the second electrical signal. In some embodiments, the position detection circuit can detect the position of the head and control the head to move towards the disengagement position after the food processor finishes its operation, before the position detection circuit detects that the head is in the disengagement position. This ensures that the head rotates into place and completely disengages from the blending device.

[0016] Optionally, the controller is configured to de-energize the coil when the cooking process of the food processor is completed and the duration of coil energization reaches a third time threshold, wherein the first time threshold is less than the third time threshold. In some embodiments, de-energizing the coil after the third time threshold is reached can prevent the coil from overheating due to prolonged energization and improve the coil's lifespan.

[0017] Optionally, after the food processor finishes its processing, the controller detects the rotational speed of the second motor. When the rotational speed is zero, the controller energizes the coil. In some embodiments, the coil is energized to demagnetize the food processor after the second motor has completely stopped rotating, thus improving the safety of the food processor during operation.

[0018] Optionally, the food processor includes a drive component, a conductive component, and a power circuit. The conductive component is electrically connected to the power circuit, and the drive component is electrically connected to the controller. The controller controls the drive component to move the conductive component toward the coil until the conductive component makes electrical contact with the coil, thereby enabling the power circuit to supply power to the coil. The controller also controls the drive component to move the conductive component away from the coil, separating the conductive component from the coil to de-energize it. In some embodiments, the controller automatically controls the drive component to contact the conductive component to energize the coil, demagnetizing it without user intervention. This improves the user experience and prevents accidental energization of the coil, thus avoiding interference with the food processor's operation.

[0019] Optionally, the food processor includes a control switch electrically connected to the conductive element and the power circuit. A controller is electrically connected to the control switch and is configured to close the control switch when the duration for which the driving element drives the conductive element towards the coil reaches a fourth time threshold, thereby connecting the power circuit and the coil. The fourth time threshold is longer than the duration from when the conductive element begins to move towards the coil until it contacts the coil. In some embodiments, closing the control switch when the driving element drives the conductive element to reach the fourth time threshold ensures that the coil is energized after good contact between the conductive element and the coil, preventing arcing and improving the safety of the food processor.

[0020] This application also provides a method for controlling a food processor. The food processor includes a main unit and a mixing device. The main unit includes a head and a first motor connected to the head. The head is located above the mixing device. The head includes a second motor and an upper suction element connected to the second motor. The mixing device includes a lower suction element. The main unit or the mixing device includes a coil. The head includes a suction position and a disengagement position. In the suction position, the upper suction element and the lower suction element are opposite to each other. In the disengagement position, the upper suction element and the lower suction element are offset.

[0021] The food processor control method includes:

[0022] In response to the cooking function selection command, the first motor is controlled to drive the head to move to the suction position;

[0023] The second motor is controlled to drive the upper adsorption component to rotate, so that the upper adsorption component drives the lower adsorption component to rotate through the magnetic attraction between the upper adsorption component and the lower adsorption component, thereby driving the stirring device to rotate;

[0024] After the food processor finishes its food processing, the coil is energized, and the first motor is controlled to drive the head of the food processor to move toward the disengaged position.

[0025] In some embodiments, the food processor control method can control the first motor to drive the blades to the engaging position when the food processor starts working, and control the first motor to drive the blades to the disengaged position after the food processor finishes working. This eliminates the need for the user to manually align or separate the blades and the mixing device, simplifying user operation and improving the user experience. Furthermore, by controlling the first motor to drive the blades, automatic control makes it easier to align the blades and the mixing device, thereby reducing machine vibration during mixing.

[0026] Optionally, the food processor control method includes: after the food processor finishes its cooking operation and the coil has been energized for a first time threshold, controlling the first motor to drive the head to move towards the disengagement position. In some embodiments, controlling the head to move towards the disengagement position after the coil has been energized for the first time threshold ensures that the magnetic attraction between the upper and lower suction components is sufficiently small or completely demagnetized before the head begins to move, making it easier for the head to separate from the mixing device and preventing the food processor from tilting. Furthermore, waiting until the first time threshold is reached after the cooking operation is complete before rotating the head allows the second motor and mixing device to stop rotating before the head is turned, thus improving safety.

[0027] Optionally, the step of controlling the coil to be energized and controlling the first motor to drive the head to move towards the disengaged position after the food processor has finished cooking includes: controlling the coil to be energized until the head moves to the engaging position in response to the cooking function selection command. In some embodiments, the food processor control method keeps the coil energized during the movement of the head to the engaging position, which can ensure that the magnetic attraction between the upper and lower adsorption components is small or non-existent, preventing the magnetic attraction from being too strong and hindering the movement of the head.

[0028] Optionally, the food processor includes a position detection circuit, which generates a first electrical signal when the head is in the suction position;

[0029] The food processor control method includes:

[0030] Acquire a position signal indicating the position of the machine head, the position signal including a first electrical signal indicating that the machine head is in the engaging position;

[0031] The control of the second motor to drive the upper adsorption component to rotate includes:

[0032] When the time elapsed since receiving the first electrical signal reaches a second time threshold, the coil is de-energized, and the second motor is controlled to drive the upper suction component to rotate. In some embodiments, the position detection circuit can detect the position of the head. When the head is in the suction position for the second time threshold, the coil is de-energized, and the second motor is controlled to drive the upper suction component to start the food processing. This ensures that the head is fully rotated to the suction position and the food processor is fully aligned with the mixing device before starting to work, resulting in more stable operation.

[0033] Optionally, the position signal includes a second electrical signal indicating that the machine head is in the disengaged position;

[0034] When the duration of the coil being energized reaches a first duration threshold, controlling the first motor to drive the machine head to move towards the disengagement position includes:

[0035] The first motor is controlled to drive the head to move towards the disengaged position until the second electrical signal is received. In some embodiments, the position detection circuit can detect the position of the head. After the food processor finishes working, before the position detection circuit detects that the head is in the disengaged position, the head is controlled to move towards the disengaged position, thus ensuring that the head rotates into place and completely disengages from the mixing device.

[0036] Optionally, the food processor control method includes: after the food processor finishes its food processing, when the duration of the coil being energized reaches a third duration threshold, controlling the coil to be de-energized, wherein the first duration threshold is less than the third duration threshold. In some embodiments, controlling the coil to be de-energized after the third duration threshold is reached can prevent the coil from overheating due to prolonged energization and improve the coil's lifespan.

[0037] Optionally, the food processor control method includes:

[0038] After the food processor finishes its food processing, the rotational speed of the second motor is detected.

[0039] When the rotational speed is zero, the coil is energized. In some embodiments, the coil is energized to demagnetize the food processor after the second motor has completely stopped rotating, thereby improving the safety of the food processor during operation.

[0040] Optionally, the food processor includes a control switch, a drive component, a conductive component, and a power circuit, wherein the conductive component is electrically connected to the power circuit, and the control switch is electrically connected to the conductive component and the power circuit;

[0041] The control of energizing the coil includes:

[0042] The driving element is controlled to drive the conductive element to move toward the coil until the conductive element makes electrical contact with the coil;

[0043] When the duration for which the driving component drives the conductive component to move towards the coil reaches a fourth time threshold, the control switch is closed to allow the power circuit to supply power to the coil. The fourth time threshold is longer than the duration from when the conductive component begins to move towards the coil until it makes contact with the coil. In some embodiments, controlling the driving component to contact the conductive component controls the coil to be energized. This allows the coil to be energized and demagnetized without user intervention, improving the user experience and preventing accidental energization that could affect the operation of the food processor. Furthermore, closing the control switch when the driving component drives the conductive component to move towards the fourth time threshold ensures that the coil is energized only after good contact between the conductive component and the coil, preventing arcing and improving the safety of the food processor.

[0044] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0045] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0046] Figure 1This is a perspective view of a food processor according to an exemplary embodiment of this application, wherein the main body of the food processor is in the suction position.

[0047] Figure 2 yes Figure 1 The diagram shows a cross-sectional view of the food processor.

[0048] Figure 3 and Figure 1 The diagram shows another state of the food processor, in which the head is in the disengaged position.

[0049] Figure 4 yes Figure 1 The image shows an exploded perspective view of the food processor's grinding cup, lid, and blending mechanism.

[0050] Figure 5 yes Figure 1 The diagram shows the bottom of the main unit of the food processor.

[0051] Figure 6 and Figure 1 Similar, but the nose cone is not shown.

[0052] Figure 7 yes Figure 1 An exploded view of the main unit of the food processor shown, where the machine head is not shown.

[0053] Figure 8 yes Figure 1 A cross-sectional view of the food processor when its head is in the suction position.

[0054] Figure 9 yes Figure 1 Another cross-sectional view of the food processor when its head is in the suction position.

[0055] Figure 10 yes Figure 1 A cross-sectional view of the food processor with the head in the disengaged position.

[0056] Figure 11 yes Figure 1 Another cross-sectional view of the food processor when its head is in the disengaged position.

[0057] Figure 12 yes Figure 5 An exploded view of the food processor head shown.

[0058] Figure 13 yes Figure 12 A schematic diagram of the drive components of the machine head is shown.

[0059] Figure 14 yes Figure 5The diagram shown is of the machine head, in which the upper housing and the second motor are not shown.

[0060] Figure 15 yes Figure 14 The image shows a magnified view of a portion of the machine head.

[0061] Figure 16 This is a schematic block diagram of one embodiment of the control circuit of the food processor of this application.

[0062] Figure 17 yes Figure 16 A circuit diagram of one embodiment of the control circuit.

[0063] Figure 18 This is a flowchart of one embodiment of the food processor control method of this application.

[0064] Figure 19 This is a flowchart of another embodiment of the food processor control method of this application.

[0065] Figure 20 This is a flowchart of another embodiment of the food processor control method of this application. Detailed Implementation

[0066] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0067] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to limit the application. Unless otherwise defined, the technical or scientific terms used in this application should be understood in their ordinary sense by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "a" or "one," etc., do not indicate a quantity limitation, but rather indicate the presence of at least one. "A plurality" or "several" indicates two or more. Unless otherwise indicated, the terms "front," "rear," "lower," and / or "upper," etc., are for ease of description only and are not limited to a location or spatial orientation. The terms "comprising" or "including," etc., mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. The terms "connected," "linked," etc., are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0068] The food processor according to this application includes a main unit, a blending device, and a control circuit. The main unit includes a blade head and a first motor connected to the blade head, which is located above the blending device. The blade head also includes a second motor and an upper suction element connected to the second motor. The blending device includes a lower suction element, and either the main unit or the blending device includes a coil. The control circuit includes a function selection circuit and a controller. The controller is electrically connected to the first motor, the second motor, the coil, and the function selection circuit. The blade head includes a closed position and a disengaged position. In the closed position, the upper and lower suction elements are opposite each other; in the disengaged position, they are offset. The first motor drives the blade head to move between the closed and disengaged positions. The controller, in response to a user-generated food processing function selection command generated by the function selection circuit, controls the first motor to drive the blade head to the closed position and controls the second motor to drive the upper suction element to rotate. The magnetic attraction between the upper and lower suction elements causes the lower suction element to rotate, thereby rotating the blending device. The controller energizes the coil after the food processor finishes its operation, reducing or eliminating the magnetic attraction between the upper and lower suction components, and controlling the first motor to drive the head towards the disengaged position. When the food processor starts, the controller moves the first motor to the engaged position; after it finishes, it moves the head away from the disengaged position. This eliminates the need for the user to align or separate the head and mixing device, simplifying operation and improving the user experience. Furthermore, the controller's automatic control of the first motor makes alignment easier, reducing machine vibration during blending.

[0069] This application provides a food processor and a food processor control method. The food processor and food processor control method of this application will be described in detail below with reference to the accompanying drawings. Unless otherwise specified, the features of the following embodiments and implementations can be combined with each other.

[0070] refer to Figures 1-4The food processor according to this application includes a main unit 1 and a mixing device 2. The main unit 1 includes a head 14 and a first motor 18 connected to the head 14. The first motor 18 is used to drive the head 14 to rotate. The head 14 is located above the mixing device 2 and can move relative to the mixing device 2. In some embodiments, the head 14 can rotate above the mixing device 2. The head 14 includes a second motor 11 and an upper suction member 12 connected to the second motor 11. The second motor 11 is used to drive the upper suction member 12 to rotate. The mixing device 2 includes a lower suction member 21. The upper suction member 12 and the lower suction member 21 are magnetically attracted to each other, causing the mixing device 2 to rotate to blend food. The main unit 1 or the mixing device 2 includes a coil 121. When the coil 121 is not energized, there is a strong magnetic attraction between the upper suction member 12 and the lower suction member 21, which allows the second motor 11 to drive the mixing device 2 to rotate through the upper suction member 12 and the lower suction member 21. When coil 121 is energized, it generates a magnetic field, reducing or eliminating the magnetic attraction between the upper adsorption member 12 and the lower adsorption member 21. The head 14 can then move under the drive of the first motor 18, disengaging from the stirring device 2. Optionally, the upper adsorption member 12 and the lower adsorption member 21 are magnets or made of a material that can be magnetically attracted, including permanent magnets.

[0071] The food processor according to this embodiment further includes a grinding cup 3 and a lid 4. The stirring device 2 is detachably attached to the lid 4. The stirring device 2 can be assembled to the lid 4 first, and then the lid 4 can be attached to the grinding cup 3; alternatively, the lid 4 can be assembled to the grinding cup 3 first, and then the stirring device 2 can be assembled to the lid 4. The grinding cup 3 has a receiving portion 30 for holding food ingredients. The lid 4 covers the opening of the grinding cup 3.

[0072] The stirring device 2 includes a housing 22 and a blade shaft 23 disposed on the housing 22. A stirring element 25 is disposed on the blade shaft 23. The stirring element 25 is used to stir food ingredients. The lower suction element 21 is positioned to the blade shaft 23 to drive the blade shaft 23 to rotate. Optionally, the lower suction element 21 is made of a material that can be magnetically attracted. When the second motor 11 drives the stirring device 2 to rotate, the lower suction element 21 and the upper suction element 12 are attracted together. Optionally, there may also be a gap between the lower suction element 21 and the upper suction element 12.

[0073] See Figures 5 to 7 As shown, the main unit 1 includes a support column 13 and a base 15. The grinding head 14 is located at the top of the support column 13, and the base 15 is located at the bottom of the support column 13. The grinding cup 3 is placed on the base 15. In some embodiments, a first motor 18 is located on the support column 13 and is drivenly connected to the grinding head 14. The grinding head 14 can rotate relative to the support column 13 to offset from the base 15, so as to place the grinding cup 3 from top to bottom.

[0074] The head unit 14 includes a lower housing 141 and an upper housing 142. The main unit 1 also includes a circuit board assembly 17. The second motor 11, the upper suction member 12, and the circuit board assembly 17 are located within the space enclosed by the upper housing 142 and the lower housing 141. The main unit 1 also includes a rotating member 153 and a bearing 154. The rotating member 153 is fixed to the shaft of the first motor 18. This increases the holding force between the head unit 14 and the shaft of the first motor 18, ensuring smooth rotation of the head unit 14. The bearing 154 is fixed to the support column 13 and sleeved onto the rotating member 153 to ensure smooth rotation of the rotating member 153.

[0075] Optionally, the main unit 1 includes a housing 106. Optionally, the housing 106 includes a left housing 1061, a right housing 1062, and a bottom cover 1063 assembled together. The vertical section of the left housing 1061, together with a portion of the right housing 1062 and the bottom cover 1063, forms the support column 13. The horizontal section of the left housing 1061 and another portion of the bottom cover 1063 form the base 15. Optionally, the circuit board assembly 17 may be located within the support column 13 or within the head unit 14.

[0076] One of the support column 13 and the machine head 14 is equipped with a first detection switch 155 and a second detection switch 156, and the other is equipped with a magnetic component 115. When in the engaged position, the magnetic component 115 triggers the first detection switch 155; when in the disengaged position, the magnetic component 115 triggers the second detection switch 156. The magnetic component 115, the first detection switch 155, and the second detection switch 156 can detect the position of the machine head 14, ensuring that the first motor 18 is not overloaded when it rotates to the correct position, thus extending the service life of the first motor 18. When the coil 121 is not energized, the magnetic force of the upper adsorption component 12 can attract the lower adsorption component 21, causing the lower adsorption component 21 to move upwards. The lower adsorption component 21 is made of a material that can be magnetically attracted. When the coil 121 is energized, the magnetic field generated by the energized coil 121 completely or partially cancels out the magnetic field generated by the upper adsorption member 12. The magnetic attraction between the upper adsorption member 12 and the lower adsorption member 21 weakens or disappears, and the lower adsorption member 21 falls due to the disappearance of the magnetic attraction, so as to facilitate the rotation of the machine head 14. Optionally, after the coil 121 is energized, the polarity of the upper adsorption member 12 or the lower adsorption member 21 is changed, so that the upper adsorption member 12 and the lower adsorption member 21 generate a repulsive force. The repulsive force can separate the lower adsorption member 21 from the upper adsorption member 12, making it easier to separate the stirring device 2 from the main unit 1.

[0077] Optionally, the lower adsorption element 21 includes a magnet, and the lower adsorption element 21 is attracted to the upper adsorption element 12. A coil 121 surrounds the iron core of the upper adsorption element 12. When not energized, the lower adsorption element 21 is attracted to the iron core. When the coil 121 is energized, a repulsive force is generated between the upper adsorption element 12 and the lower adsorption element 21. Optionally, the lower adsorption element 21 may also be equipped with a coil 121. For example, a battery can be installed in the stirring device 2 to power the coil 121. The food processor also includes a control circuit 161, which can be located on the circuit board assembly 17.

[0078] The head 14 includes an engaging position and an disengaging position. In the engaging position, the upper suction element 12 and the lower suction element 21 are opposite each other, as shown below. Figure 8 and Figure 9 As shown. In the detached position, the upper adsorption element 12 and the lower adsorption element 21 are offset, as... Figure 10 and Figure 11 As shown. The first motor 18 drives the head 14 to move between the suction position and the disengagement position. In some embodiments, in the suction position, the head 14 overlaps with the stirring device 2 in the vertical direction, the head 14 covers the cup lid 4, and the upper adsorption member 12 and the lower adsorption member 21 are directly opposite each other in the vertical direction. The second motor 11 is connected to the stirring device 2 through the upper adsorption member 12 and the lower adsorption member 21. In the disengagement position, the projections of the head 14 onto the grinding cup 3 and the cup lid 4 in the horizontal plane do not coincide, and the upper adsorption member 12 and the lower adsorption member 21 are completely offset in the horizontal plane, allowing the grinding cup 3 to be removed from above. In other embodiments, in the suction position, the upper adsorption member 12 and the lower adsorption member 21 are directly opposite each other in the horizontal direction, and in the disengagement position, the upper adsorption member 12 and the lower adsorption member 21 are offset in the vertical direction. When the food processor is working, the first motor 18 drives the head 14 to the suction position. The head 14 closes completely, the coil 121 is de-energized, and there is a strong magnetic attraction between the upper suction element 12 and the lower suction element 21. The second motor 11 then drives the mixing device 2 to rotate, thus completing the food processing. When the food processor finishes working, the coil 121 is energized, reducing or eliminating the magnetic attraction between the upper suction element 12 and the lower suction element 21. The first motor 18 then moves the head 14 from the suction position to the disengagement position, thereby removing the grinding cup 3.

[0079] Figure 16This is a circuit block diagram of one embodiment of the control circuit 161. The control circuit 161 includes a function selection circuit 165 and a controller 162. The controller 162 is electrically connected to the first motor 18, the second motor 11, the coil 121, and the function selection circuit 165. The controller 162 is used to respond to a cooking function selection command generated by the user operation of the function selection circuit 165, controlling the first motor 18 to drive the head 14 to the suction position, and controlling the second motor 11 to drive the upper suction member 12 to rotate. The magnetic attraction between the upper suction member 12 and the lower suction member 21 causes the lower suction member 21 to rotate, thereby driving the stirring device 2 to rotate. After the food processor finishes cooking, the controller 162 controls the coil 121 to be energized to reduce or eliminate the magnetic attraction between the upper suction member 12 and the lower suction member 21, and controls the first motor 18 to drive the head 14 to the disengagement position.

[0080] The food processor may include a function selection panel. A function selection circuit 165 is located on the function selection panel. The function selection circuit 165 may include buttons, a touchscreen, etc., for the user to select cooking functions. After the function selection circuit 165 is operated by the user, the controller 162 receives the cooking function selection instruction and, according to the instruction, controls the food processor to process ingredients according to the corresponding cooking program. The controller 162 controls the first motor 18 to drive the head 14 to the suction position, the coil 121 is de-energized, and the upper suction member 12 and the lower suction member 21 are attracted by the magnetic force between them. The controller 162 controls the second motor 11 to drive the upper suction member 12 to rotate, and the magnetic force between the upper suction member 12 and the lower suction member 21 drives the lower suction member 21 to rotate, thereby driving the mixing device 2 to rotate, enabling the food processor to perform blending and other cooking operations. After the food processor finishes cooking, the controller 162 controls the coil 121 to be energized. At this time, the magnetic force between the upper suction member 12 and the lower suction member 21 decreases or is eliminated, and the head 14 can move to the disengaged position. After the food processor finishes working according to the cooking program, the controller 162 energizes the control coil 121 and controls the first motor 18 to drive the head 14 to the disengagement position, so that the grinding cup 3 can be removed and the cooked food can be poured out.

[0081] In some embodiments, when the food processor starts working, the controller 162 controls the first motor 18 to drive the head 14 to the engaging position, and after the food processor finishes working, it controls the first motor 18 to drive the head 14 to the disengaged position. This eliminates the need for the user to align or separate the head 14 and the mixing device 2, simplifying operation and improving the user experience. Furthermore, by controlling the first motor 18 to drive the head 14 via the controller 162, automatic control makes it easier to align the head 14 and the mixing device 2, thereby reducing machine vibration during mixing.

[0082] Optionally, the controller 162 controls the first motor 18 to drive the head 14 to the disengaged position after the food processor has finished its operation and the coil 121 has been energized for a first time threshold. After the food processor has finished its operation, the coil 121 is energized for the first time threshold in the engaged position, after which the head 14 moves. Thus, by controlling the head 14 to move to the disengaged position after the coil 121 has been energized for the first time threshold, the controller 162 ensures that the magnetic attraction between the upper suction element 12 and the lower suction element 21 is sufficiently small or completely demagnetized before the head 14 begins to move. This facilitates the separation of the head 14 from the mixing device 2, preventing the food processor from tilting. Furthermore, in some cases, the mixing device 2 may not have stopped rotating after the food processor has finished its operation. Waiting for the first time threshold before controlling the first motor 18 to drive the head 14 allows the mixing device 2 to stop rotating, thereby improving safety.

[0083] Optionally, the controller 162 is used to de-energize the coil 121 when the energization time of the coil 121 reaches a third time threshold after the food processor finishes its cooking operation. The first time threshold is less than the third time threshold. Since the coil 121 generates heat when energized, if the energization time is too long, the temperature rise will increase, shortening the lifespan of the coil 121 and making it prone to burnout. The third time threshold is greater than 1 and not less than 10 seconds. In some embodiments, de-energizing the coil 121 after it reaches the third time threshold prevents overheating caused by prolonged energization and improves the lifespan of the coil 121. When the coil 121 is energized to the first time threshold, the head 14 moves to the disengaged position; when the energization reaches the third time threshold, the coil 121 is de-energized. The third time threshold can be less than or equal to the time it takes for the head 14 to move from the engaged position to the disengaged position.

[0084] Optionally, after the food processor finishes its operation, the controller 162 detects the rotation speed of the second motor 11. When the speed is zero, the control coil 121 is energized. Before the food processor head 14 rotates out of the disengaged position after the operation, the coil 121 needs to be energized to demagnetize the upper suction element 12 and the lower suction element 21. If the second motor 11 does not completely stop rotating, demagnetization may cause the food processor to vibrate, posing a safety risk. The controller 162 can energize the coil 121 after detecting that the rotation speed of the second motor 11 is zero. In some embodiments, energizing the control coil 121 to demagnetize after the second motor 11 has completely stopped rotating can improve the safety of the food processor during operation.

[0085] Optionally, the controller 162 is configured to energize the coil 121 in response to a cooking function selection command until the head 14 moves to the suction position. Upon receiving the cooking function selection command, the controller 162 controls the head 14 to move to the suction position, and during this process, energizes the coil 121 to demagnetize the upper suction member 12 and the lower suction member 21. In some embodiments, maintaining the coil 121 energized during the movement of the head 14 to the suction position ensures that the magnetic attraction between the upper suction member 12 and the lower suction member 21 is small or nonexistent, preventing a large magnetic attraction from hindering the movement of the head 14, thereby facilitating the movement of the head 14 to the suction position.

[0086] Optionally, the control circuit 161 includes a position detection circuit 164 for detecting whether the head 14 is in the suction position. When the head 14 is in the suction position, the position detection circuit 164 generates a first electrical signal. The controller 162 is electrically connected to the position detection circuit 164 and is used to de-energize the control coil 121 and control the second motor 11 to drive the upper suction member 12 to rotate when the time elapsed since receiving the first electrical signal reaches a second time threshold. The controller 162 receives the first electrical signal, indicating that the head 14 is in the suction position. Thus, the position detection circuit 164 can detect whether the head 14 is in the suction position. However, at this time, the upper suction member 12 and the lower suction member 21 are not fully aligned, and the shaft of the second motor 11 and the shaft of the stirring device 2 are not yet aligned, yet the position detection circuit 164 has already generated the first electrical signal. Within a second time threshold period starting from the receipt of the first electrical signal, the controller 162 controls the first motor 18 to drive the head 14 to continue moving, so that the head 14 reaches the accurate suction position, the upper suction member 12 and the lower suction member 21 are aligned and well-adheded, and the shaft of the second motor 11 is aligned with the shaft of the stirring device 2, so that the second motor 11 can drive the stirring device 2 to rotate better. This can reduce the degree of stirring and shaking caused by poor suction and incomplete alignment. Optionally, the second time threshold period is 2 seconds. In some embodiments, the position detection circuit 164 can detect the position of the head 14. When the head 14 is in the suction position and reaches the second time threshold period, the control coil 121 is de-energized, and the second motor 11 is controlled to drive the upper suction member 12 to start the food processing. This can ensure that the head 14 is fully rotated to the suction position, and the food processor only starts working after the head 14 is fully aligned with the stirring device 2, making the food processor work more stably.

[0087] Optionally, when the blender head 14 is in the disengaged position, the position detection circuit 164 generates a second electrical signal. The controller 162, after the blender has finished its operation and the coil 121 has been energized for a first time threshold, controls the first motor 18 to drive the blender head 14 to the disengaged position until the controller 162 receives the second electrical signal. The controller 162 receiving the second electrical signal indicates that the blender head 14 is in the disengaged position. Before this, the controller 162 controls the first motor 18 to drive the blender head 14 to the disengaged position. In some embodiments, the position detection circuit 164 can detect the position of the blender head. After the blender has finished its operation, before the position detection circuit 164 detects that the blender head 14 is in the disengaged position, it controls the blender head 14 to move to the disengaged position, thus ensuring that the blender head rotates into position and completely disengages from the blending device 2.

[0088] Optionally, the food processor includes a drive unit 19, a conductive element 166, and a power circuit 167. The conductive element 166 is electrically connected to the power circuit 167, and the drive unit 19 is electrically connected to a controller 162. The controller 162 controls the drive unit 19 to drive the conductive element 166 towards the coil 121 until the conductive element 166 makes electrical contact with the coil 121, thereby enabling the power circuit 167 to supply power to the coil 121. The controller 162 also controls the drive unit 19 to drive the conductive element 166 away from the coil 121, separating the conductive element 166 from the coil 121 to de-energize the coil 121. The drive unit 19 can be controlled to extend or retract towards or away from the conductive element 166 to control the energization or de-energization of the coil 121. When the conductive element 166 makes electrical contact with the coil 121, the conductive element 166, the coil 121, and the power circuit 167 form a circuit, allowing the power circuit 167 to supply power to the coil 121.

[0089] See Figure 12 , Figure 13 As shown, the machine head 14 also includes a cover plate 114 fixed to the lower housing 141. Figure 14 yes Figure 5 The schematic diagram of the head unit 14 shown is provided, in which the upper housing 142 and the second motor 11 are not shown. Figure 15 yes Figure 14 The diagram shows an enlarged view of a portion A of the machine head. Optionally, the drive unit 19 includes a telescopic member 181 and a solenoid valve 182. The telescopic member 181 includes a movable member 1811, an elastic member 1814, and a push rod 1815 disposed on the solenoid valve 182. The push rod 1815 extends to abut against the movable member 1811, causing it to move toward the switch 109 to trigger the switch 109. The abutting force of the elastic member 1814 can drive the movable member 1811 to move away from the switch 109.

[0090] The movable component 1811 includes a first movable component 1812 and a second movable component 1813 assembled together, making the movable component 1811 easy to process and shape. The first movable component 1812 includes a base 18121. The base 18121 is provided with a receiving hole 18122. The end of the push rod 1815 is received in the receiving hole 18122, which on the one hand allows the first movable component 1812 to be longer and more stably positioned; on the other hand, it also ensures the reliability of the push rod 1815 abutting against the first movable component 1812. The second movable component 1813 includes an abutting top 18131 for abutting against the switch 109.

[0091] The first movable member 1812 further includes a positioning portion 18123 extending from the base 18121. The positioning portion 18123 has a recess 18124. The second movable member 1813 includes a top abutment 18131 and a columnar portion 18132 extending from the top abutment 18131. The end of the columnar portion 18132 is received within the recess 18124 to increase the stability of the second movable member 1813 after assembly with the first movable member 1812. Simultaneously, the elastic member 1814 is sleeved onto the columnar portion 18132, with one end abutting against the positioning portion 18123 to prevent the elastic member 1814 from falling off. The height of the columnar portion 18132 is less than the height of the top abutment 18131.

[0092] Switch 109 includes a pair of contacts 191. Each contact 191 includes a contact portion 19111. Telescopic member 181 moves toward the switch 109 such that the contact portion 19111 contacts the conductive member 166 to energize the coil. Optionally, contact 191 includes a spring piece 1911. The contact portion 19111 is disposed on the spring piece 1911. Telescopic member 181 moves toward the switch 109 such that the abutment top 18131 abuts against the spring piece 1911. The spring piece 1911 elastically deforms under force, so that the pair of contacts 19111 respectively contact the pair of conductive members 166 to energize the coil 121. Optionally, contact 191 may remain unchanged, with the abutment top 18131 abutting against contact 191, causing the contact portion 19111 to move toward the conductive member 166 to contact it.

[0093] In some embodiments, the controller 162 automatically controls the drive component 19 to contact the conductive component 166 to energize the coil 121. This allows for demagnetization of the coil 121 without user intervention, improving the user experience and preventing accidental energization that could affect the food processor's operation. The solenoid valve 182, the elastic component 1814, and at least a portion of the movable component 1811 are located within the space enclosed by the cover plate 114 and the lower housing 141. The abutment 18131 is located outside the cover plate 114. The cover plate 114 is used to limit the solenoid valve 182 and the movable component 1811. The other end of the elastic component 1814 can abut against the cover plate 114 and / or the lower housing 141.

[0094] Optionally, the food processor includes a control switch 168, which is electrically connected to a conductive element 166 and a power circuit 167. A controller 162 is electrically connected to the control switch 168 and is used to close the control switch 168 when the duration for which the control drive element 19 drives the conductive element 166 to move towards the coil 121 reaches a fourth duration threshold, thus connecting the power circuit 167 and the coil 121. The fourth duration threshold is longer than the duration from when the conductive element 166 begins to move towards the coil 121 until it makes contact with the coil 121. The control switch 168 can control whether the power circuit 167 supplies power to the coil 121. When the duration after the drive element 19 drives the conductive element 166 to begin moving towards the coil 121 reaches the fourth duration threshold, the controller 162 controls the control switch 168 to close, so that after the conductive element 166 makes good contact with the coil 121, the power circuit 167 supplies power to the coil 121. In some embodiments, when the driving member 19 drives the conductive member 166 to move to a fourth duration threshold, the control switch 168 is closed. This ensures that the coil 121 is energized after the conductive member 166 makes good contact with the coil 121, preventing the coil 121 from sparking and improving the safety of the food processor.

[0095] Figure 17 The diagram shows a circuit diagram of one embodiment of the control circuit 161. The control circuit 161 includes a coil control circuit 169, which includes an electronic switch RLY1 and a control switch 168 electrically connected to the electronic switch RLY1. The electronic switch RLY1 is electrically connected to the coil 121, and the control switch 168 controls the on / off state of the electronic switch RLY1 to control the energization of the coil 121. This allows for accurate and rapid control of the energization of the coil 121, and the circuit is simple. The electronic switch RLY1 can be a relay. In some embodiments, the coil control circuit 169 includes a freewheeling diode D1 connected in parallel with the electronic switch RLY1, and includes resistors R1 and R2. Resistor R1 is connected in series between the base of the control switch 168 and ground, and resistor R2 is connected in series between the base of the control switch 168 and the controller 162.

[0096] The solenoid valve drive circuit 170 includes a transistor Q2, which is electrically connected to the controller 162. The controller 162 controls the transistor Q2 to conduct, energizing the solenoid valve 182, which then pushes the conductive component 166 to move. The position detection circuit 164 includes a first detection switch 155 and a second detection switch 156. When the machine head 14 is in the engaged position, the first detection switch 155 closes, and the controller 162 detects the SW1 signal. When the machine head 14 is in the disengaged position, the second detection switch 156 closes, and the controller 162 detects the SW2 signal.

[0097] The control circuit 161 includes a drive circuit 163. The drive circuit 163 includes a first bridge circuit and a second bridge circuit. The first bridge circuit includes a first drive chip U1, resistors R200, R201, and R202, and capacitors C200, C221, and C222. The second bridge circuit includes a second drive chip U2, resistors R203, R204, and R205, and capacitors C201, C223, and C224. The controller 162 is electrically connected to the first drive chip U1 and the second drive chip U2, and the first drive chip U1 and the second drive chip U2 are electrically connected to the first motor 18. The controller 162 can control the forward and reverse rotation of the first motor 18 by controlling the first drive chip U1 and the second drive chip U2.

[0098] Figure 18 The diagram shows a flowchart of an embodiment of the food processor control method of this application. The food processor control method includes steps 410, 420, and 430. In step 410, in response to a food processing function selection command, the first motor 18 is controlled to drive the head 14 to the suction position. In step 420, the second motor 11 is controlled to drive the upper suction member 12 to rotate, so that the upper suction member 12 drives the lower suction member 21 to rotate through the magnetic attraction between the upper suction member 12 and the lower suction member 21, thereby driving the stirring device 2 to rotate, thus stirring the food and performing the food processing work. In step 430, after the food processor finishes processing, the coil 121 is energized, and the first motor 18 is controlled to drive the head 14 to move to the disengagement position. After the food processor finishes processing the food, the coil 121 is energized, the magnetic attraction between the upper suction member 12 and the lower suction member 21 is weakened or eliminated, and the first motor 18 is controlled to drive the head 14 to the disengagement position, so that the grinding cup 3 can be removed and the processed food can be poured out.

[0099] In some embodiments, the food processor control method can control the first motor 18 to drive the blade head 14 to the engaging position when the food processor starts working, and control the first motor 18 to drive the blade head 14 to the disengaged position after the food processor finishes working. This eliminates the need for the user to manually align or separate the blade head 14 and the mixing device 2, simplifying user operation and improving the user experience. Furthermore, by controlling the first motor 18 to drive the blade head 14, automatic control makes it easier to align the blade head 14 and the mixing device 2, thereby reducing machine vibration during mixing.

[0100] Figure 19 The diagram shows a flowchart of one embodiment of a food processor control method. (Combined with...) Figure 1-19 The food processor control method includes steps 210, 220, 230, and 240. In step 210, after the device is powered on, in response to a function selection command, the first motor 18 is controlled to drive the head 14 to the suction position and the coil 121 is energized. Optionally, the coil 121 is energized until the head 14 moves to the suction position. Keeping the coil 121 energized during the movement of the head 14 to the suction position ensures that the magnetic attraction between the upper suction member 12 and the lower suction member 21 is small or nonexistent, preventing the magnetic attraction from being too strong and hindering the movement of the head 14, thereby facilitating the rotation of the head 14 to the suction position.

[0101] Optionally, the food processor control method includes: controlling the drive unit 19 to drive the conductive element 166 to move towards the coil 121 until the conductive element 166 makes electrical contact with the coil 121. When the duration for which the drive unit 19 drives the conductive element 166 to move towards the coil 121 reaches a fourth duration threshold, the control switch 168 is closed to allow the power circuit 167 to supply power to the coil 121. The fourth duration threshold is longer than the duration for which the conductive element 166 begins to move towards the coil 121 and makes contact with it. In some embodiments, controlling the drive unit 19 to contact the conductive element 166 controls the coil 121 to be energized. This allows the coil 121 to be energized and demagnetized without user operation, improving the user experience and preventing accidental energization of the coil 121, thus avoiding interference with the food processor's operation. Furthermore, when the driving component 19 drives the conductive component 166 to move to the fourth time threshold, the control switch 168 is closed. This ensures that the coil 121 is energized after the conductive component 166 makes good contact with the coil 121, preventing the coil 121 from sparking and improving the safety of the food processor.

[0102] In step 220, it is detected whether the head 14 has rotated to the suction position. Optionally, the food processor control method includes: acquiring a position signal representing the position of the head 14, the position signal including a first electrical signal indicating that the head 14 is in the suction position. In some embodiments, the position detection circuit 164 can detect the position of the head 14, and when the head 14 is in the suction position, the position detection circuit 164 sends the first electrical signal.

[0103] Continue to refer to Figure 19 If the head 14 is detected to be in the suction position, step 230 is executed. After a second time threshold, the control coil 121 is de-energized. When the head 14 is in the suction position, a first electrical signal sent by the position detection circuit can be obtained. However, at this time, the upper suction member 12 and the lower suction member 21 are not fully aligned, and the shaft of the second motor 11 and the shaft of the stirring device 2 are not yet aligned. Within the second time threshold starting from the receipt of the first electrical signal, the first motor 18 is controlled to drive the head 14 to continue moving, so that the head 14 reaches the accurate suction position, the upper suction member 12 and the lower suction member 21 are aligned, and the shaft of the second motor 11 and the shaft of the stirring device 2 are aligned. Thus, the second motor 11 can drive the stirring device 2 to rotate better, thereby reducing the degree of stirring and shaking caused by poor suction and incomplete alignment. When the time since the receipt of the first electrical signal reaches the second time threshold, the control coil 121 is de-energized. This ensures that the head 14 is fully rotated to the suction position and the head 14 is fully aligned with the stirring device 2, making the food processor work more stably. If the head 14 is not detected to be in the suction position, repeat step 210. In step 240, control the food processor to start food processing.

[0104] Figure 20 The diagram shows a flowchart of another embodiment of the food processor control method. The illustrated embodiment is a flowchart of the food processor stopping operation. In step 310, the rotational speed of the second motor 11 is detected.

[0105] In step 320, if the speed of the second motor 11 is zero, the control coil 121 is energized. In some embodiments, the control coil 121 is energized to demagnetize after the second motor 11 has completely stopped rotating, which improves the safety of the food processor. In step 330, after a first time threshold, the control head 14 is turned to the disengagement position. After the food processing is completed, wait for the first time threshold before controlling the first motor 18 to drive the head 14 to move. After the coil 121 is energized for the first time threshold, the control head 14 moves to the disengagement position. This ensures that the magnetic attraction between the upper suction member 12 and the lower suction member 21 is sufficiently small or completely demagnetized before the head 14 starts to move. This makes it easier for the head 14 to separate from the mixing device 2, preventing the food processor from tilting. Moreover, in some cases, the second motor 11 and the mixing device 2 are still rotating due to inertia after the food processing is completed. Waiting for a period of time before rotating the head 14 allows the second motor 11 and the mixing device 2 to stop rotating before rotating the head 14, thus improving safety.

[0106] Optionally, the position signal includes a second electrical signal indicating that the head 14 is in the disengaged position. The food processor control method includes controlling the first motor 18 to drive the head 14 towards the disengaged position until the second electrical signal is received. In some embodiments, the position detection circuit 164 can detect the position of the head 14. After the food processor finishes operating, before the position detection circuit 164 detects that the head 14 is in the disengaged position, it controls the head 14 to move towards the disengaged position, thus ensuring that the head 14 rotates into position and completely disengages from the blending device 2.

[0107] In step 340, after a third time threshold, the control coil 121 is de-energized. The third time threshold is greater than the first time threshold. When the control coil 121 is energized for the first time threshold, the control head 14 moves to the disengaged position; when the energization reaches the third time threshold, the control coil 121 is de-energized. The third time threshold can be less than or equal to the time it takes for the control head 14 to move from the engaged position to the disengaged position. In some embodiments, after the coil 121 is energized for the third time threshold, the control coil 121 is de-energized. This prevents the coil 121 from overheating due to prolonged energization and improves its service life.

[0108] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0109] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A food processor, characterized in that, The system includes a main unit (1), a stirring device (2), and a control circuit (161). The main unit (1) includes a head (14) and a first motor (18) connected to the head (14). The head (14) is located above the stirring device (2). The head (14) includes a second motor (11) and an upper suction element (12) connected to the second motor (11). The stirring device (2) includes a lower suction element (21). The main unit (1) or the stirring device (2) includes a coil (121). The control circuit (161) includes a function selection circuit (165) and a controller (162). The controller (162) is electrically connected to the first motor (18), the second motor (11), the coil (121), and the function selection circuit (165), respectively. The machine head (14) includes a suction position and a release position. In the suction position, the upper adsorption member (12) and the lower adsorption member (21) are opposite to each other. In the release position, the upper adsorption member (12) and the lower adsorption member (21) are staggered. The first motor (18) is used to drive the machine head (14) to move between the suction position and the release position. The controller (162) is used to respond to the cooking function selection command generated by the user operation of the function selection circuit (165), control the first motor (18) to drive the head (14) to move to the suction position, and control the second motor (11) to drive the upper suction member (12) to rotate, so as to drive the lower suction member (21) to rotate through the magnetic attraction between the upper suction member (12) and the lower suction member (21), thereby driving the stirring device (2) to rotate; the controller (162) is used to control the coil (121) to be energized after the cooking work of the food processor is completed, so as to reduce or eliminate the magnetic attraction between the upper suction member (12) and the lower suction member (21), and control the first motor (18) to drive the head (14) to move to the disengagement position.

2. The food processor according to claim 1, characterized in that, The controller (162) is used to control the first motor (18) to drive the machine head (14) to move to the disengagement position when the food processor finishes its food processing work and the coil (121) is energized for a first duration threshold.

3. The food processor according to claim 1, characterized in that, The controller (162) is used to control the coil (121) to be energized in response to the cooking function selection command until the head (14) moves to the suction position.

4. The food processor according to claim 3, characterized in that, The control circuit (161) includes a position detection circuit (164), which generates a first electrical signal when the machine head (14) is in the engaging position. The controller (162) is electrically connected to the position detection circuit (164) and is used to control the coil (121) to be de-energized and control the second motor (11) to drive the upper adsorption member (12) to rotate when the duration from the receipt of the first electrical signal reaches a second duration threshold.

5. The food processor according to claim 4, characterized in that, When the machine head (14) is in the disengaged position, the position detection circuit (164) generates a second electrical signal; The controller (162) is used to control the first motor (18) to drive the machine head (14) to move to the disengagement position when the duration of the coil (121) being energized reaches a first duration threshold after the food processor finishes its food processing work, until the controller (162) receives the second electrical signal.

6. The food processor according to claim 2, characterized in that, The controller (162) is used to control the coil (121) to be de-energized when the cooking time of the food processor is completed and the duration of the coil (121) being energized reaches a third duration threshold, wherein the first duration threshold is less than the third duration threshold.

7. The food processor according to claim 1, characterized in that, After the food processor finishes its food processing, the controller (162) detects the rotation speed of the second motor (11), and when the rotation speed is zero, controls the coil (121) to be energized.

8. The food processor according to claim 1, characterized in that, The food processor includes a drive unit (19), a conductive element (166), and a power circuit (167). The conductive element (166) is electrically connected to the power circuit (167). The drive unit (19) is electrically connected to the controller (162). The controller (162) controls the drive unit (19) to drive the conductive element (166) to move toward the coil (121) until the conductive element (166) makes electrical contact with the coil (121), so that the power circuit (167) supplies power to the coil (121). The controller also controls the drive unit (19) to drive the conductive element (166) away from the coil (121), so that the conductive element (166) separates from the coil (121), thereby de-energizing the coil (121).

9. The food processor according to claim 8, characterized in that, The food processor includes a control switch (168) electrically connected to the conductive element (166) and the power circuit (167). The controller (162) is electrically connected to the control switch (168) and is used to close the control switch (168) when the duration for which the drive element (19) drives the conductive element (166) to move toward the coil (121) reaches a fourth duration threshold, thereby connecting the power circuit (167) and the coil (121). The fourth duration threshold is greater than the duration for which the conductive element (166) begins to move toward the coil (121) and comes into contact with the coil (121).

10. A method for controlling a food processor, characterized in that, The food processor includes a main unit (1) and a mixing device (2). The main unit (1) includes a head (14) and a first motor (18) connected to the head (14). The head (14) is located above the mixing device (2). The head (14) includes a second motor (11) and an upper suction element (12) connected to the second motor (11). The mixing device (2) includes a lower suction element (21). The main unit (1) or the mixing device (2) includes a coil (121). The head (14) includes a suction position and a disengagement position. In the suction position, the upper suction element (12) and the lower suction element (21) are opposite to each other. In the disengagement position, the upper suction element (12) and the lower suction element (21) are staggered. The food processor control method includes: In response to the cooking function selection command, the first motor (18) is controlled to drive the head (14) to move to the suction position; Control the second motor (11) to drive the upper adsorption element (12) to rotate, so that the upper adsorption element (12) drives the lower adsorption element (21) to rotate through the magnetic attraction between the upper adsorption element (12) and the lower adsorption element (21), thereby driving the stirring device (2) to rotate; After the food processor finishes its food processing, the coil (121) is energized to reduce or eliminate the magnetic attraction between the upper adsorption component (12) and the lower adsorption component (21), and the first motor (18) is controlled to drive the head (14) to move toward the disengagement position.

11. The food processor control method according to claim 10, characterized in that, After the food processor finishes its food processing, controlling the coil (121) to be energized and controlling the first motor (18) to drive the head (14) to move towards the disengaged position includes: After the food processor finishes its food processing, and the duration of the coil (121) being energized reaches a first duration threshold, the first motor (18) is controlled to drive the machine head (14) to move toward the disengagement position.

12. The food processor control method according to claim 10, characterized in that, The food processor control method includes: in response to the food processing function selection command, controlling the coil (121) to be energized until the head (14) moves to the engaging position.

13. The food processor control method according to claim 10, characterized in that, The food processor includes a position detection circuit (164), and when the head (14) is in the suction position, the position detection circuit (164) generates a first electrical signal; The food processor control method includes: Acquire a position signal indicating the position of the head (14), the position signal including a first electrical signal indicating that the head (14) is in the engaging position; The control of the second motor (11) to drive the upper adsorption member (12) to rotate includes: When the duration from the receipt of the first electrical signal reaches the second duration threshold, the coil (121) is de-energized, and the second motor (11) is controlled to drive the upper adsorption component (12) to rotate.

14. The food processor control method according to claim 13, characterized in that, The position signal includes a second electrical signal indicating that the head (14) is in the disengaged position; When the duration of energization of the coil (121) reaches a first duration threshold, controlling the first motor (18) to drive the machine head (14) to move towards the disengagement position includes: Control the first motor (18) to drive the machine head (14) to move toward the disengagement position until the second electrical signal is received.

15. The food processor control method according to claim 11, characterized in that, The food processor control method includes: after the food processor finishes its food processing, when the duration of the coil (121) being energized reaches a third duration threshold, controlling the coil (121) to be de-energized, wherein the first duration threshold is less than the third duration threshold.

16. The food processor control method according to claim 10, characterized in that, The food processor control method includes: After the food processor finishes its food processing, the rotational speed of the second motor (11) is detected. When the rotational speed is zero, the coil (121) is energized.

17. The food processor control method according to claim 10, characterized in that, The food processor includes a control switch (168), a drive unit (19), a conductive component (166), and a power circuit (167). The conductive component (166) is electrically connected to the power circuit (167), and the control switch (168) is electrically connected to the conductive component (166) and the power circuit (167). The control of energizing the coil (121) includes: The driving element (19) is controlled to drive the conductive element (166) to move toward the coil (121) until the conductive element (166) makes electrical contact with the coil (121); When the duration of the driving member (19) driving the conductive member (166) to move toward the coil (121) reaches the fourth duration threshold, the control switch (168) is closed so that the power supply circuit (167) supplies power to the coil (121). The fourth duration threshold is greater than the duration of the conductive member (166) moving toward the coil (121) until it comes into contact with the coil (121).

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