Food processing equipment and rotating speed regulation control method and device

Abstract

The embodiment of the invention relates to the technical field of household appliances, in particular to food processing equipment and a rotating speed adjustment control method and device. The food processing equipment comprises a shell, an inner container, a stirring cutter, a magnet, a rotary driving assembly, a controller and a Hall sensor. The shell is provided with an inner cavity; the inner container is arranged in the inner cavity; the stirring cutter is arranged in the inner container; the magnet is arranged on the stirring cutter; the controller is arranged in the inner cavity; the rotation driving assembly is in transmission connection with the stirring cutter so as to be used for driving the stirring cutter to rotate, the rotation driving assembly is detachably connected with the stirring cutter, and the rotation driving assembly is detachably and electrically connected with the controller; the Hall sensor is electrically connected to the controller and used for detecting a magnetic field signal of the magnet, and the controller controls the rotating speed of the rotating driving assembly according to the magnetic field signal. According to the food processing equipment, the rotating speed of the stirring cutter can be adjusted, so that stable stirring of the stirring cutter is guaranteed, and the food processing efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and in particular to a food processing device, a speed regulation control method and a device. Background Art

[0002] An ice cream maker is a common food processing device, typically consisting of a housing, a container, a mixing blade, and a drive unit. The housing is the main structure of the ice cream maker, and the container is located within it. The container is used to hold ingredients to be processed, such as cream, butter, nuts, and fruit. The mixing blade is located within the container, and the drive unit is in transmission connection with the mixing blade to rotate, thereby stirring the various ingredients in the container.

[0003] Current ice cream machines often encounter the following problem during use: as the mixing process progresses, the viscosity of the ingredients in the container increases, which hinders the smooth rotation of the mixing blade, causing the mixing blade to slow down or even get stuck. This problem significantly reduces the efficiency of the ice cream machine and is urgently needed to be solved. Summary of the Invention

[0004] Embodiments of the present application provide a food processing device, a speed adjustment control method, and a device.

[0005] In a first aspect, embodiments of the present application provide a food processing device comprising a housing, an inner container, a stirring blade, a magnet, a rotary drive assembly, a controller, and a Hall effect sensor. The housing comprises an inner cavity; the inner container is disposed within the inner cavity; the stirring blade is disposed within the inner container; the magnet is disposed on the stirring blade; the controller is disposed within the inner cavity; the rotary drive assembly is transmission-connected to the stirring blade for driving the stirring blade to rotate; the rotary drive assembly and the stirring blade are detachably connected; and the rotary drive assembly and the controller are detachably electrically connected; the Hall effect sensor is electrically connected to the controller, the Hall effect sensor is configured to detect a magnetic field signal from the magnet, and the controller controls the rotational speed of the rotary drive assembly based on the magnetic field signal.

[0006] On the second aspect, an embodiment of the present application also provides a speed regulation control method, which is applied to the above-mentioned food processing equipment. The method includes: obtaining the speed of the stirring tool through a Hall sensor; adjusting the power supply voltage of the rotation drive component based on the speed of the stirring tool, so that the speed of the stirring tool driven by the adjusted rotation drive component falls into a specified speed range.

[0007] Thirdly, embodiments of the present application further provide a speed regulation control device, applicable to the aforementioned food processing apparatus, comprising: a speed acquisition module and a supply voltage regulation module. The speed acquisition module is configured to acquire the speed of the stirring blade via a Hall effect sensor; the supply voltage regulation module is configured to regulate the supply voltage of the rotary drive assembly based on the stirring blade's speed, so that the rotational speed of the stirring blade driven by the rotary drive assembly falls within a specified speed range.

[0008] In a fourth aspect, embodiments of the present application further provide a food processing device comprising: one or more processors, a memory, and one or more application programs. The one or more application programs are stored in the memory and configured to be executed by the one or more processors, and the one or more application programs are configured to execute the aforementioned speed adjustment control method.

[0009] In the food processing device provided by the embodiment of the present application, since a magnet is provided on the stirring tool and a Hall sensor is provided on the controller, the magnetic field signal of the magnet can be detected by the Hall sensor, thereby obtaining the rotation speed of the stirring tool. The controller can then adjust the rotation speed of the stirring tool according to the magnetic field signal so that the rotation speed of the stirring tool is within an ideal range. For example, when the stirring tool encounters food resistance and causes its own rotation speed to drop, the Hall sensor can timely obtain the rotation speed of the stirring tool through the change of the magnetic field signal and transmit a control signal to the controller. The controller adjusts the power supply voltage of the rotary drive component according to the control signal, so that the rotary drive component drives the stirring tool to rotate faster, so as to ensure the stirring processing efficiency of the stirring tool on the food and avoid the stirring tool from rotating too low or even getting stuck. Therefore, the above-mentioned food processing device can detect and adjust the rotation speed of its own stirring tool, and has the advantages of high stirring efficiency and good user experience.

[0010] Furthermore, since in the above-mentioned food processing equipment, the rotary drive assembly is detachably connected to the stirring tool, and the rotary drive assembly is detachably connected to the controller, when the food processing equipment is not needed, the user can separate the rotary drive assembly from the stirring tool and the controller and store them separately, which is conducive to reducing the size of the equipment and facilitating the transportation and storage of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solution of the present application, the following is a brief introduction to the drawings required for use in the implementation. Obviously, the drawings described below are only some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0012] Figure 1 It is a schematic diagram of the overall structure of the food processing equipment provided in some embodiments of the present application.

[0013] Figure 2 yes Figure 1 The cross-sectional structural diagram of the food processing equipment shown.

[0014] Figure 3 yes Figure 2 A magnified view of the structure of part A.

[0015] Figure 4 yes Figure 1 Schematic diagram of the partial internal structure of the food processing equipment shown.

[0016] Figure 5 yes Figure 1 An exploded view of a partial structure of a food processing device is shown.

[0017] Figure 6 yes Figure 5 A schematic diagram of the partial structure of the rotary drive assembly is shown.

[0018] Figure 7 yes Figure 2 The schematic diagram of the structure of the stirring knife of the food processing equipment is shown.

[0019] Figure 8 yes Figure 1 The overall structural diagram of the rotary drive assembly is shown.

[0020] Figure 9 This is a flow chart of a speed regulation control method provided in some embodiments of the application.

[0021] Figure 10 yes Figure 9 The flow chart of the speed regulation control method shown is as follows.

[0022] Figure 11 is a structural block diagram of a speed regulation control device provided in some embodiments of the present application;

[0023] Figure 12 is a structural block diagram of a food processing device provided by some embodiments of the present application;

[0024] Figure 13 This is a structural block diagram of a computer-readable storage medium provided in some embodiments of the present application.

[0025] Explanation of reference numerals: 100, food processing equipment; 10, housing; 101, inner cavity; 102, mounting opening; 103, top cover; 1031, connecting plate; 104, housing body; 105, flange; 11, inner pot; 12, stirring tool; 121, stirring shaft; 122, stirring blade; 123, connecting portion; 124, coupling nut; 125, connecting groove; 13, magnet; 14, rotary drive assembly; 141, spring pin; 142, driving motor; 143, rotary output shaft; 1431, spiral rib; 144, mounting shell; 145, mounting bracket; 146, elastic member ; 147. Clamping member; 148. First clearance opening; 149. Clamping slot; 150. Second clearance opening; 15. Controller; 151. Circuit board; 152. Contact column; 16. Hall sensor; 17. Positioning assembly; 171. Positioning member; 172. Matching member; 18. Refrigeration mechanism; 181. Evaporating tube; 182. Compressor; 183. Condenser; 200. Speed ​​adjustment control device; 201. Speed ​​acquisition module; 202. Power supply voltage adjustment module; 30. Processor; 31. Memory; 400. Computer-readable storage medium; 410. Computer program instructions. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0027] In the description of this application, it should be understood that terms such as "length", "width", "thickness", "up", "down", "front", "back", "left", "right", and "inside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only used to simplify the description for the convenience of describing this application, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on this application.

[0028] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0029] Furthermore, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, these terms may refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; internal communication between two components; or mere surface contact. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0030] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not distinguish components based on differences in name, but rather on differences in their functionality. For example, the term "including" used throughout the specification and claims is an open-ended term and should be interpreted as meaning "including but not limited to." "Substantially" means that those skilled in the art can solve the technical problem within a certain error range and achieve a substantial technical effect.

[0031] See also Figure 1 The present invention provides a food processing device 100 for processing food. For example, the food processing device 100 may be configured to stir and / or break food. Specifically, the food processing device 100 may be an ice cream maker, a blender, a wall-breaking machine, a dough mixer, or the like. In this embodiment, the food processing device 100 is described using an ice cream maker as an example.

[0032] Please also see Figure 1 and Figure 2 The food processing device 100 includes a housing 10, an inner pot 11, a stirring blade 12, a magnet 13, a rotary drive assembly 14, a controller 15, and a Hall sensor 16. The housing 10 is the main frame of the food processing device 100. The housing 10 is provided with an inner cavity 101, which is used to accommodate other components of the food processing device 100. As a specific example, in this embodiment, the housing 10 is roughly in the shape of a rectangular parallelepiped. In other embodiments, the housing 10 can also be in any shape such as a cube, a cylinder, or even an irregular shape. This embodiment does not limit the shape of the housing 10.

[0033] Please also see Figure 2 and Figure 3The inner liner 11 is a barrel-shaped structure, and the inner liner 11 is used to hold the ingredients needed to make ice cream, such as cream, butter, cheese, nuts, fruits, etc. The inner liner 11 is not only used to accommodate the ingredients to be processed, but also provides a place for the processing of the ingredients. The stirring tool 12 is arranged in the inner liner 11, and the stirring tool 12 is used to be driven to rotate by the rotating drive assembly 14 to stir and mix the ingredients contained in the inner liner 11. The magnet 13 is arranged on the stirring tool 12, and the magnet 13 is located outside the rotation center axis of the stirring tool 12. When the stirring tool 12 rotates, the spatial position of the magnet 13 can change. For example, the magnet 13 can be fixedly set on the surface of the stirring tool 12, or embedded in the inside of the stirring tool 12.

[0034] The rotary drive assembly 14 is connected to the stirring tool 12 in a transmission manner to drive the stirring tool 12 to rotate. The rotary drive assembly 14 is detachably connected to the stirring tool 12 .

[0035] The controller 15 is electrically connected to the rotation drive assembly 14 and is located in the inner cavity 101 . The controller 15 can be fixedly connected to the housing 10 by fasteners such as screws / bolts. The controller 15 is detachably connected to the rotation drive assembly 14 .

[0036] The Hall sensor 16 is electrically connected to the controller 15. The Hall sensor 16 is used to detect the magnetic field signal of the magnet 13 to obtain the rotational speed of the stirring blade 12. The controller 15 controls the rotational speed of the rotary drive assembly 14 based on the magnetic field signal to adjust the rotational speed of the stirring blade 12. Specifically, the closer the distance between the magnet 13 and the Hall sensor 16, the stronger the magnetic field signal strength of the magnet 13 detected by the Hall sensor 16. Therefore, the relative distance between the magnet 13 and the Hall sensor 16 can be determined by the strength of the magnetic field signal of the magnet 13 detected by the Hall sensor 16, thereby obtaining the rotational motion state of the stirring blade 12 and further obtaining the rotational speed of the stirring blade 12.

[0037] With the above configuration, since the stirring blade 12 rotates and drives the magnet 13 to rotate, the distance between the magnet 13 and the Hall sensor 16 can be changed, thereby changing the strength of the magnetic field signal of the magnet 13 detected by the Hall sensor 16. The controller 15 can calculate the rotational speed of the stirring blade 12 based on the magnetic field signal of the magnet 13 provided by the Hall sensor 16 and the number of magnets 13, thereby enabling detection and monitoring of the rotational speed of the stirring blade 12. When the stirring blade 12 is obstructed by the ingredients in the inner pot 11, causing the rotational speed to drop or even become stuck, the Hall sensor 16 can promptly detect this situation and, based on the magnetic field signal provided by the Hall sensor 16, the controller 15 can adjust the rotational speed of the rotary drive assembly 14 to increase the rotational speed of the stirring blade 12. As a specific example, when the Hall sensor 16 detects that the rotational speed of the stirring blade 12 is too low, the controller 15 can increase the power supply voltage of the rotary drive assembly 14, thereby increasing the rotational speed of the rotary drive assembly 14, that is, increasing the rotational speed of the stirring blade 12, to ensure that the stirring blade 12 can rotate at a relatively ideal speed. In summary, the food processing device 100 is capable of detecting the rotational speed of the stirring blade 12. When it is found that the rotational speed of the stirring blade 12 has decreased or has become stuck, the controller 15 can be used to adjust and increase the output speed of the rotary drive assembly 14, thereby increasing the rotational speed of the stirring blade 12 to ensure that the stirring blade 12 effectively stirs the food in the inner pot 11. Therefore, the food processing device 100 is capable of detecting the rotational speed of its own stirring blade 12 and adaptively adjusting it when the rotational speed of the stirring blade 12 is abnormal, thereby achieving the beneficial effects of stable stirring effect and high stirring efficiency.

[0038] Furthermore, since the rotary drive assembly 14 is detachably connected to the stirring blade 12 and the controller 15, the user can remove the rotary drive assembly 14 and store it separately after using the food processing device 100, thereby reducing the volume of the food processing device 100 and facilitating storage and transportation of the food processing device 100.

[0039] Please also see Figure 1 and Figure 2In some embodiments, the shell 10 includes a detachably connected shell body 104 and a top cover 103. For example, the shell body 104 and the top cover 103 can be connected by a snap fit with a slot, or fixedly connected by fasteners such as screws / bolts. This embodiment does not limit the specific connection method between the shell body 104 and the top cover 103. The shell body 104 is the main part of the shell 10. The shell body 104 is provided with a mounting port 102. The mounting port 102 is connected to the inner cavity 101. The inner tank 11 is provided corresponding to the mounting port 102. The top cover 103 covers and closes the mounting port 102. As a specific example, in this embodiment, the mounting port 102 is provided on the top wall of the shell body 104, and the mounting port 102 is roughly circular. In other embodiments, the mounting port 102 can also be any shape such as a rectangle or a triangle. This embodiment does not limit the shape of the mounting port 102. The stirring tool 12 is rotatably connected to the side of the top cover 103 facing the inner pot 11. At least part of the structure of the stirring tool 12 is passed through the top cover 103 and is connected to the rotary drive assembly 14 so that the rotary drive assembly 14 can drive the stirring tool 12 to rotate.

[0040] With the above arrangement, when adding food to the inner pot 11, the user can remove the top cover 103 from the installation opening 102. After adding the food, the user can connect the top cover 103 to the shell body 104 to cover and seal the installation opening 102, which is simple and convenient to operate. In addition, the user can also remove the top cover 103 to clean the inner pot 11 and the stirring blade 12.

[0041] Please also see Figure 4 and Figure 5 In some embodiments, the rotary drive assembly 14 is disposed outside the housing 10 and includes a spring pin 141, a drive motor 142, and a rotary output shaft 143. The spring pin 141 is electrically connected to the drive motor 142, and the rotary output shaft 143 is transmission-connected to the output shaft of the drive motor 142. The rotary output shaft 143 is also removably transmission-connected to the stirring blade 12. For example, the rotary output shaft 143 and the output shaft of the drive motor 142 can be transmission-connected via a gear set, a synchronous belt, and a synchronous pulley. This embodiment does not limit the transmission connection method between the rotary output shaft 143 and the drive motor 142. The controller 15 includes a circuit board 151 and a contact pin 152. The circuit board 151 is disposed in the inner cavity 101 and can be fixedly connected to the housing 10 via fasteners such as screws / bolts. The contact pin 152 is disposed on the circuit board 151 and is electrically connected between the circuit board 151 and the spring pin 141. The contact pin 152 is removably connected to the spring pin 141.

[0042] Through the above arrangement, the spring pin 141 and the contact post 152 are detachably electrically connected, thereby achieving an electrical connection between the circuit board 151 and the drive motor 142. The circuit board 151 can adjust the output speed of the drive motor 142 by adjusting the supply voltage of the drive motor 142, thereby adjusting the speed of the stirring blade 12. Furthermore, the spring pin 141 and the contact post 152 are detachably connected, and the rotary output shaft 143 is detachably connected to the stirring blade 12. This allows the rotary drive assembly 14 to be detachably connected to the controller 15 and the stirring blade 12, allowing the rotary drive assembly 14 to be removed and stored separately, thereby reducing the overall size of the food processing device 100.

[0043] See also Figure 4 In some embodiments, the spring pin 141 is provided with a slot (not shown) into which at least a portion of the contact post 152 is removably inserted. In other embodiments, the contact post 152 is provided with a slot into which at least a portion of the spring pin 141 is removably inserted. This arrangement enables a plug-in connection between the spring pin 141 and the contact post 152, thereby improving the stability and reliability of the connection between the spring pin 141 and the contact post 152.

[0044] Please continue reading Figure 4In some embodiments, the circuit board 151 has a rectifier circuit module, a voltage stabilizing circuit module, a positive power supply electrode, and a negative power supply electrode (all not shown in the figure). The charging current provided by the power supply passes through the rectifier circuit module, the voltage stabilizing circuit module, the positive power supply electrode, and the negative power supply electrode in sequence to form a charging circuit. The rectifier circuit module is used to convert alternating current into direct current, and the direct current is rectified by the voltage stabilizing circuit module and output through the positive power supply electrode. There are two contact posts 152, and the two contact posts 152 are electrically connected to the positive power supply electrode and the negative power supply electrode, respectively. There are two spring pins 141, and the two spring pins 141 are electrically connected to the two contact posts 152, respectively. Through the above arrangement, when the food processing device 100 is working, the circuit board 151 is connected to an external power supply, and a power supply circuit is formed through the two contact posts 152, the two spring pins 141, and the drive motor 142 to realize the power supply of the drive motor 142 by the power supply. When the rotation speed of the stirring knife 12 needs to be adjusted, the circuit board 151 can adaptively adjust the potential difference between the two spring pins 141 according to the control signal transmitted by the Hall sensor 16, thereby changing the power supply voltage of the drive motor 142, and then changing the rotation speed of the drive motor 142 to achieve the rotation speed adjustment of the stirring knife 12. In summary, in the food processing device 100 provided in this embodiment, the power supply to the drive motor 142 and the rotation speed adjustment of the drive motor 142 / stirring knife 12 can be achieved simply by providing two spring pins 141 and cooperating with two contact posts 152. Since the number of spring pins 141 is relatively small, the equipment failure caused by poor contact of the spring pins 141 can be reduced, thereby improving the stability and reliability of the food processing device 100 in adjusting the rotation speed of the stirring knife 12.

[0045] Please continue reading Figure 4 In some embodiments, the housing 10 is provided with a clearance hole (not shown) and a flange 105. The contact post 152 is disposed through the clearance hole and extends to the outside of the housing 10. The flange 105 is disposed on the side of the housing 10 facing away from the inner cavity 101 and surrounds the clearance hole. The flange 105 is generally annular and surrounds the structure where the contact post 152 extends to the outside of the housing 10. Through the above arrangement, since the flange 105 surrounds the structure where the contact post 152 extends to the outside of the housing 10, the flange 105 can prevent external splashing liquid from contacting the contact post 152, thereby minimizing short circuits in the circuit where the contact post 152 is located, thereby protecting the circuit safety of the food processing device 100.

[0046] Please also refer to 2. Figure 7 and Figure 8In some embodiments, the stirring tool 12 includes a stirring shaft 121, which is a roughly rod-shaped structure and is roughly perpendicular to the bottom wall of the inner pot 11. A coupling nut 124 is embedded at one end of the stirring shaft 121, and the coupling nut 124 is exposed from the shell 10. The coupling nut 124 can be a nut of any shape, such as a hexagonal nut or an octagonal nut. The coupling nut 124 is provided with a connecting groove 125, and one end of the rotating output shaft 143 is inserted into the connecting groove 125. The side wall of the rotating output shaft 143 is provided with a spiral rib 1431, and the inner side wall of the connecting groove 125 is provided with a spiral groove (not marked in the figure) adapted to the spiral rib 1431. The rotation direction of the stirring shaft 121 during operation is the same as the rotation direction of the spiral rib 1431.

[0047] Through the above arrangement, since the spiral ribs 1431 are engaged with the spiral grooves, a detachable transmission connection between the rotary output shaft 143 and the stirring shaft 121 can be achieved, and the stirring blade 12 can be prevented from completely falling out of the engagement height with the rotary output shaft 143 even in certain special circumstances (such as collision, shaking, jamming, etc.). In addition, when the stirring blade 12 rotates, since the rotation direction of the spiral ribs 1431 is the same as that of the stirring shaft 121, the connection between the stirring shaft 121 and the rotary output shaft 143 will be tighter, thereby ensuring a stable connection and efficient transmission between the stirring shaft 121 and the rotary output shaft 143.

[0048] It should be noted that when the user connects the rotary drive assembly 14 to the stirring blade 12, the user needs to first install the stirring blade 12 inside the inner pot 11, and then insert the rotary output shaft 143 of the rotary drive assembly 14 into the connecting groove 125 of the coupling nut 124. As the rotary output shaft 143 continues to insert into the connecting groove 125, the stirring blade 12 continues to rotate in the inner pot 11 until the rotary output shaft 143 is completely inserted into the connecting groove 125. The stirring blade 12 stops rotating and completes the transmission connection with the rotary drive assembly 14. Similarly, when the user needs to separate the rotary drive assembly 14 from the stirring blade 12, the rotary output shaft 143 needs to be moved away from the connecting groove 125. At this time, the stirring blade 12 rotates in the opposite direction until the rotary output shaft 143 is completely removed from the connecting groove 125.

[0049] In some embodiments, a magnet (not shown) is provided at one end of the rotary output shaft 143 near the coupling nut 124. The magnet can be directly provided on the surface of the rotary output shaft 143 or embedded in the rotary output shaft 143. The coupling nut 124 can be made of a soft magnetic material, such as carbon steel or other magnetic materials, and the magnet is used to attract the coupling nut 124. Through the above arrangement, the rotary output shaft 143 and the stirring shaft 121 are not only connected in transmission by the spiral ribs 1431 and the spiral grooves, but can also be connected by magnetic attraction through the magnet, which can further improve the stability and reliability of the connection between the stirring tool 12 and the rotary drive assembly 14.

[0050] Please also see Figure 5 、 Figure 6 and Figure 8 In some embodiments, the rotary drive assembly 14 further includes a mounting housing 144, which is used to accommodate the other components of the rotary drive assembly 14. As a specific example, in this embodiment, the mounting housing 144 is roughly rectangular. In other embodiments, the mounting housing 144 can also be any shape, such as a cube, a cylinder, or even an irregular shape. This embodiment does not limit the shape of the mounting housing 144. The drive motor 142 is disposed within the mounting housing 144. The spring pin 141 is disposed through the mounting housing 144, with at least a portion of the structure of the spring pin 141 exposed outside the mounting housing 144. The rotary output shaft 143 is disposed through the mounting housing 144, with at least a portion of the structure of the rotary output shaft 143 exposed outside the mounting housing 144. The mounting housing 144 is disposed within the housing 10 and is detachably connected thereto. With this configuration, the detachable connection of the mounting housing 144 to the housing 10 not only improves the stability of the connection between the rotary drive assembly 14 and the housing 10, but also does not affect the assembly and disassembly of the rotary drive assembly 14.

[0051] In some embodiments, a positioning assembly 17 is disposed between the mounting shell 144 and the housing 10. The positioning assembly 17 includes a positioning member 171 and a mating member 172. The positioning member 171 is disposed on the housing 10, and the mating member 172 is disposed on the mounting shell 144. Specifically, the positioning member 171 is disposed on the top wall of the housing 10, and the mating member 172 is disposed on the bottom wall of the mounting shell 144. The positioning member 171 and the mating member 172 engage with each other to restrict the mounting shell 144 to movement relative to the housing 10 only along the axial direction of the contact pin 152. Through the above-mentioned arrangement, the positioning member 171 and the mating member 172 are snap-fitted together, so that the mounting shell 144 can only move relative to the shell 10 along the axial direction of the contact column 152, so that the mounting shell 144 can be disassembled from the shell 10. At the same time, the mounting shell 144 cannot move in directions other than the axial direction of the contact column 152, which can improve the stability of the connection between the mounting shell 144 and the shell 10, thereby ensuring stable contact and connection between the spring clip and the contact column 152, thereby ensuring stable conduction of the power supply circuit of the drive motor 142.

[0052] One of the positioning member 171 and the mating member 172 is a positioning sleeve, and the other is a positioning post, which is inserted into the positioning sleeve. In this embodiment, the positioning member 171 is a positioning post, and the mating member 172 is a positioning sleeve, and the positioning post is inserted into the positioning sleeve to achieve a snap-fit ​​fit between the two. In other embodiments, the positioning member 171 can also be a positioning sleeve, and the mating member 172 can be a positioning post, and the two can be plugged into each other.

[0053] Please continue reading Figure 5 、 Figure 6 and Figure 8 In some embodiments, the rotation drive assembly 14 further includes a mounting bracket 145, an elastic member 146, and a clamping member 147. The mounting bracket 145 is disposed within the mounting housing 144, and the elastic member 146 is connected between the mounting bracket 145 and the clamping member 147. The elastic member 146 may be an elastic element such as a spring, a spring, or a rubber rod. The elastic member 146 elastically holds the clamping member 147 against the mounting housing 144, so that at least a portion of the clamping member 147 passes through the mounting housing 144 and is clamped to the housing 10. As a specific example, the top cover 103 of the housing 10 is provided with a connecting plate 1031 perpendicular to the top cover 103. Two connecting plates 1031 are provided, parallel to each other and spaced apart. The mounting housing 144 is located between the two connecting plates 1031. The opposing surfaces of the two connecting plates 1031 are each provided with a clamping groove 149 for the clamping member 147 to engage. The mounting shell 144 has two vertical sidewalls, each facing the two connecting plates 1031, each with a first clearance opening 148 corresponding to the position of the retaining groove 149. The elastic member 146 extends and contracts perpendicular to the connecting plates 1031. Under the support of the elastic member 146, at least a portion of the retaining member 147 passes through the first clearance opening 148 and is retained within the retaining groove 149, thereby securing the retaining member 147 to the connecting plates 1031. Furthermore, the mounting shell 144 has two vertical sidewalls, each facing the two connecting plates 1031, each with a second clearance opening 150. At least a portion of the retaining member 147 is exposed outside the mounting shell 144 through the second clearance opening 150.

[0054] With the above arrangement, in a natural state, the elastic member 146 elastically holds the retaining member 147 against the vertical side wall of the mounting shell 144. At least a portion of the retaining member 147 passes through the first clearance opening 148 and is retained within the retaining groove 149, thereby achieving a fixed connection between the mounting shell 144 and the connecting plate 1031. When the user needs to separate the mounting shell 144 from the connecting plate 1031, the portion of the retaining member 147 exposed outside the mounting shell 144 through the second clearance opening 150 can be pushed inwardly of the mounting shell 144 until the retaining member 147 is completely removed from the retaining groove 149. The user can then move the mounting shell 144 vertically away from the housing 10 to separate the mounting shell 144 from the housing 10. This is a simple and convenient operation.

[0055] In some other embodiments, the mounting shell 144 and the housing 10 can also be detachably connected by fasteners such as bolts / screws, or can be detachably connected by magnetic attraction. This embodiment does not limit the specific connection method between the mounting shell 144 and the housing 10.

[0056] Please also see Figure 2 、 Figure 3 and Figure 8 In some embodiments, the stirring tool 12 includes a stirring shaft 121 and at least one stirring blade 122. The stirring shaft 121 is connected to the rotary drive assembly 14, specifically to the rotary output shaft 143. The stirring blade 122 is the main component of the stirring tool 12 for stirring the ingredients and is connected to the stirring shaft 121. As a specific example, in this embodiment, two stirring blades 122 are provided. In other embodiments, one, three, four, or any other number of stirring blades 122 can be provided. In this embodiment, the stirring blades 122 are generally rectangular plate-shaped structures. In other embodiments, the stirring blades 122 can also be plate-shaped structures of any shape, such as a square or parallelogram. A magnet 13 is provided on each stirring blade 122, and the magnet 13 is located at the end of the stirring blade 122 away from the bottom wall of the inner pot 11. The Hall sensor 16 is provided at the end of the controller 15 near the inner pot 11, and the Hall sensor 16 is specifically provided at the end of the circuit board 151 near the inner pot 11. Through the above setting, the distance between the Hall sensor 16 and the magnet 13 is relatively close, so the magnetic field signal obtained by the Hall sensor 16 can be enhanced to ensure the accuracy of the detection result of the Hall sensor 16, thereby ensuring that the controller 15 accurately speeds up the stirring tool 12.

[0057] In some embodiments, the stirring tool 12 further includes a connecting portion 123, one end of the connecting portion 123 is connected to the stirring shaft 121, and the other end extends in the direction close to the inner wall of the inner pot 11 and is connected to the stirring blade 122. The connecting portion 123 is used to connect the stirring shaft 121 with the stirring blade 122, and when the stirring shaft 121 rotates, the connecting portion 123 rotates with the stirring shaft 121 and can also achieve a mobile stirring effect. At least two connecting portions 123 are provided between the stirring shaft 121 and each stirring blade 122 to ensure that the stirring blade 122 is stably connected to the stirring shaft 121, while improving the overall structural strength of the stirring tool 12 and enhancing the stability of the stirring tool 12 during rotation.

[0058] See also Figure 2 In some embodiments, the food processing device 100 further includes a refrigeration mechanism 18, which is used to refrigerate the stirred ingredients in the inner container 11 to produce finished ice cream. The refrigeration mechanism 18 includes an evaporator 181, a compressor 182, and a condenser 183. The evaporator 181 is arranged on the outer side wall and / or bottom of the inner container 11. The evaporator 181 is used to accommodate a heat exchange medium, which can be a refrigerant such as water, Freon, or propane. The compressor 182 and the condenser 183 are both arranged in the inner cavity 101, the compressor 182 is connected to the evaporator 181, and the condenser 183 is connected to the compressor 182. The heat exchange medium in the evaporator 181 absorbs the heat of the food in the inner liner 11 outside the inner liner 11 and changes from liquid to gas to cool the food in the inner liner 11. Then the gaseous heat exchange medium is cooled by the compressor 182 and the condenser 183 and turned back into liquid heat exchange medium. The liquid heat exchange medium returns to the evaporator 181 to continue absorbing heat and cooling. The above process is repeated continuously to achieve continuous cooling of the food in the inner liner 11, so that the food is frozen and shaped to make the finished ice cream.

[0059] In summary, the food processing device 100 can detect the rotational speed of its stirring blade 12 and, when the rotational speed is abnormal, adjust the rotational speed of the rotary drive assembly 14 via the controller 15, thereby adjusting the rotational speed of the stirring blade 12 to ensure that the rotational speed of the stirring blade 12 is within a relatively ideal range, thereby ensuring the stirring efficiency and effect of the food. Furthermore, since the food processing device 100 only needs two spring pins 141 to adjust the rotational speed of the stirring blade 12, the smaller number of spring pins 141 can also reduce equipment failures and rotational speed detection errors caused by poor contact of the spring pins 141. Therefore, the food processing device 100 also has the advantages of accurate, stable, and reliable rotational speed detection results for the stirring blade 12. In addition, since the rotary drive assembly 14 is detachably connected to the stirring blade 12 and the controller 15, the user can remove the rotary drive assembly 14 after using the food processing device 100 and store it separately, thereby reducing the size of the food processing device 100 and facilitating storage and transportation of the food processing device 100.

[0060] See also Figure 9 and Figure 10 The present application also provides a speed adjustment control method, which is applied to the food processing device provided in any of the above embodiments and is used to adjust the speed of the stirring blade of the food processing device provided in any of the above embodiments. The speed adjustment control method specifically includes the following steps S210 to S220:

[0061] Step S210: obtaining the rotation speed of the stirring blade through the Hall sensor.

[0062] Among them, when the magnet on the stirring tool rotates with the stirring tool, the Hall sensor can detect the change in the magnetic field strength around the magnet and determine the rotation position of the stirring tool based on the change in the magnetic field strength. For example, when the magnetic field strength detected by the Hall sensor is the smallest, it means that the distance from the magnet on the stirring tool to the Hall sensor is the smallest. Through the above correspondence, the number of times the magnet passes through the Hall sensor per unit time can be obtained, and then the rotation speed of the stirring tool can be calculated based on the number of magnets; or, the time it takes for the magnet to pass through the Hall sensor a specified number of times can be obtained, and then the rotation speed of the stirring tool can be calculated based on the number of magnets. The specific calculation method of the rotation speed of the stirring tool will be introduced in detail below.

[0063] Step S220: adjusting the power supply voltage of the rotary drive assembly based on the rotational speed of the stirring blade, so that the rotational speed of the stirring blade driven by the rotary drive assembly after adjustment falls within a specified rotational speed range.

[0064] Specifically, the controller determines whether the stirring tool is installed normally and whether it is working normally based on the rotation speed of the stirring tool. The above-mentioned "normal operation" means that the rotation speed of the stirring tool is within the specified rotation speed range. The above-mentioned "specified rotation speed range" refers to a rotation speed range suitable for the stirring tool to fully stir. For example, the specified rotation speed range can be a range of 50-60rpm (inclusive), 55-65rpm (inclusive), etc. The specified rotation speed range can be a speed range built into the food processing equipment, or a speed range set manually. When the rotation speed of the stirring tool is within the specified rotation speed range, the rotation speed of the stirring tool is neither too large nor too small, which is conducive to the stirring tool to fully and evenly stir the ingredients in the inner pot. In addition, the specific range of the specified rotation speed range can also be adjusted according to the different types of ingredients to be stirred in the inner pot. It can be adjusted by manually adjusting the speed gear built into the food processing equipment, or by manually adjusting to change the specific range of the specified rotation speed range.

[0065] When the Hall sensor detects that the speed of the stirring tool is not within the specified speed range, the controller can adaptively adjust the power supply voltage of the rotary drive component according to the size relationship between the speed of the stirring tool and the critical value of the specified speed range, thereby adjusting the speed of the stirring tool and finally making the speed of the stirring tool fall within the specified speed range.

[0066] Through the above settings, when the food processing equipment is operating, the Hall sensor can detect the rotational speed of the stirring knife and determine whether the stirring knife is properly installed and whether it is rotating at a relatively ideal speed based on the rotational speed of the stirring knife. If the rotational speed value of the stirring knife is found to be abnormal, the controller can adaptively adjust the power supply voltage of the rotary drive component based on the relationship between the rotational speed of the stirring knife and the specified speed range, and then adjust the rotational speed of the stirring knife to within the specified speed range, so as to ensure that the stirring knife can stably, reliably and efficiently stir the ingredients in the inner pot, thereby ensuring the working efficiency of the food processing equipment.

[0067] In some embodiments, the speed regulation control method further includes:

[0068] Step S230: When the rotation speed of the stirring blade is less than a specified threshold, the power supply voltage of the rotary drive component is adjusted to zero.

[0069] The "specified threshold" is a fixed value for the stirring blade's rotation speed that is preset or manually set within the food processing device. For example, the specified threshold may be 25 rpm or 30 rpm. When the stirring blade's rotation speed is less than the specified threshold, indicating that the stirring blade is almost completely stuck or is not properly installed in the inner pot, the controller adjusts the power supply voltage of the rotary drive assembly to zero to stop the stirring blade from working. This allows the user to check whether the stirring blade is properly installed in the inner pot, or to manually adjust a stirring blade that is almost stuck.

[0070] It should be noted that the above step S230 needs to be executed after step S210, but there is no precedence order between step S230 and step S220. In some embodiments, step S230 can be executed before step S220. In other embodiments, step S230 can also be executed after step S220.

[0071] With the above settings, when the Hall sensor detects that the stirring blade's rotation speed is less than a specified threshold, the controller can promptly adjust the power supply voltage of the rotary drive assembly to zero, stopping the stirring blade from rotating, thereby protecting the stirring blade and the rotary drive assembly. After the controller adjusts the power supply voltage of the rotary drive assembly to zero, the user can check whether the stirring blade is properly installed in the inner pot. If the stirring blade is properly installed in the inner pot, it means that the stirring blade is almost stuck by the food in the inner pot and is difficult to rotate normally. At this time, the user can manually remove the food to restore the stirring blade to normal rotation.

[0072] In some embodiments, the food processing device is further provided with an alarm unit, which may be an indicator light, a buzzer, or a combination of an indicator light and a buzzer. The above step S230 may further include: when the rotation speed of the stirring tool is less than a specified threshold, adjusting the power supply voltage of the rotary drive assembly to zero, and controlling the alarm unit to sound an alarm. Through the above arrangement, when the Hall sensor detects that the rotation speed of the stirring tool is too low (i.e., less than the specified threshold), the alarm unit can sound an alarm to remind the user to promptly discover and deal with the above problem.

[0073] In some embodiments, step S210 specifically includes:

[0074] Step S2101: Acquire a first moment, where the first moment represents a moment when the Hall sensor first meets a specified condition, where the specified condition is that the detection magnetic field strength of the Hall sensor is greater than a specified magnetic field strength.

[0075] Among them, the "specified magnetic field strength" is a fixed magnetic field strength preset or manually set inside the Hall sensor. When the magnetic field strength detected by the Hall sensor is greater than the specified magnetic field strength, it means that the distance between the detected magnet and the Hall sensor is less than the specified distance. The above-mentioned "specified distance" refers to the distance between the detected magnet and the Hall sensor when the magnetic field strength detected by the Hall sensor is the specified magnetic field strength. When the detected magnetic field strength of the Hall sensor is greater than the specified strength, it means that the magnet passes by the Hall sensor while following the rotation of the rotating tool. Therefore, the rotation speed of the stirring tool can be further calculated by recording the number of times the magnet passes by the Hall sensor.

[0076] Step S2102: Obtain a second moment, where the second moment represents a moment when the number of times the Hall sensor meets the specified condition is equal to a preset number, where the preset number is an integer greater than 1.

[0077] Among them, the "preset number of times" is a fixed number preset in the controller or set manually. For example, the preset number of times can be 10, 12, 14, 16, etc. As a specific example, the preset number of times is set to 10, and when the magnetic field strength detected by the Hall sensor is greater than the specified magnetic field strength 10 times, the second moment is obtained. The above situation means that the magnet on the stirring tool passes by the Hall sensor 10 times. The first moment and the second moment can be used to obtain the time it takes for the magnet on the stirring tool to pass through the Hall sensor from the first time to the preset number of times. The rotation speed of the stirring tool can be further calculated through the above time, the number of magnets on the stirring tool and the preset number of times.

[0078] Step S2103: determining the rotation speed of the stirring blade based on the first moment, the second moment and the designated number of times.

[0079] Specifically, the first moment is set to T1, the second moment is set to T2, the number of magnets on the stirring tool is Z, and the preset number is N. The controller can obtain the rotation speed of the stirring tool W = 60*(N-1) / ((T2-T1)*Z) through the above data. Among them, the units of the parameters of the first moment T1 and the second moment T2 in the above formula are seconds (s), and the unit of the rotation speed of the above stirring tool is revolutions per minute (rpm). Through the above parameters and formulas, the rotation speed of the stirring tool can be calculated, thereby realizing the monitoring of the rotation speed of the stirring tool. When the rotation speed of the stirring tool is abnormal, it can be discovered in time and measures (such as speed regulation, etc.) can be taken.

[0080] In some embodiments, step S220 specifically includes:

[0081] Step S2201: when the rotation speed of the stirring blade is greater than the upper limit of the specified rotation speed range, reducing the power supply voltage of the rotation drive component.

[0082] For example, the specified speed range is defined by the upper limit value of the specified speed range and the lower limit value of the specified speed range. For example, the specified speed range is [W2, W1], and the upper limit value of the specified speed range is W1. When the speed of the stirring tool is detected to be W>W1, it means that the speed of the stirring tool is too fast. At this time, the controller needs to adjust and reduce the power supply voltage of the rotary drive component, thereby reducing the speed of the stirring tool until the speed of the stirring tool falls within the specified speed range, and then stop adjusting the power supply voltage of the rotary drive component. In this case, it is assumed that the power supply voltage of the rotary drive component before the Hall sensor performs speed detection is V0, and the power supply voltage of the rotary drive component after the Hall sensor completes the speed detection is V1. The maximum power supply voltage VM that the rotary drive component can withstand is ≥ V1. The amplitude of the controller's adjustment to reduce the rotary drive component each time is a. The above a can be 1%, 2%, 3%, or any number less than 1. When it is detected that the rotation speed W of the stirring tool is greater than the upper limit value W1 of the specified speed range, the controller adjusts the power supply voltage of the rotary drive component to V1 = (1-a) * V0, and then determines whether the rotation speed W of the stirring tool falls within the specified speed range. If W falls within the specified speed range at this time, the reduction adjustment of the power supply voltage of the rotary drive component is stopped. If the rotation speed W of the stirring tool is still greater than the upper limit value W1 of the specified speed range at this time, the power supply voltage of the rotary drive component is adjusted to V1 = (1-2*a) * V0, and it is determined again whether the rotation speed W of the stirring tool falls within the specified speed range. The above process is repeated until the rotation speed W of the stirring tool falls within the specified speed range, and then the reduction adjustment of the power supply voltage of the rotary drive component is stopped. To sum up, in some embodiments, step S2201 may further specifically include: when the rotational speed of the stirring tool is greater than the upper limit value of the specified speed range, gradually adjusting and reducing the power supply voltage of the rotating drive component by a specified adjustment amplitude and obtaining the real-time rotational speed of the stirring tool until the real-time rotational speed of the stirring tool falls within the specified speed range, and stopping the reduction adjustment of the power supply voltage of the rotating drive component.

[0083] Step S2202: When the rotation speed of the stirring blade falls within the specified rotation speed range, the power supply voltage of the rotary drive component is kept unchanged.

[0084] For example, the upper limit value of the specified speed range is set to W1, and the lower limit value of the specified speed range is set to W2. When it is detected that the speed W of the stirring tool satisfies: W2≤W≤W1, it means that the speed of the stirring tool is within the specified speed range. At this time, the speed of the stirring tool is in an appropriate range, so there is no need to adjust the power supply voltage of the rotating drive component.

[0085] Step S2203: when the rotation speed of the stirring blade is less than the lower limit of the specified rotation speed range and greater than or equal to the specified threshold, increase the power supply voltage of the rotation drive component.

[0086] For example, the lower limit of the specified speed range is set to W2, the specified threshold is set to W3, and the specified threshold W3 satisfies the condition: 0<W3<W2. When the stirring tool speed is detected as W3≤W<W2, it indicates that the stirring tool speed is too slow. In this case, the controller needs to adjust and increase the power supply voltage of the rotary drive component, thereby increasing the speed of the stirring tool. When the speed of the stirring tool falls within the specified speed range, the controller stops adjusting the power supply voltage of the rotary drive component. Among them, when it is detected that the rotation speed W of the stirring tool is less than the lower limit value W2 of the specified speed range and greater than the specified threshold value W3, the controller adjusts the power supply voltage of the rotation drive component to V1=(1+a)*V0, and then determines whether the rotation speed W of the stirring tool at this time falls within the specified speed range. If W at this time falls within the specified speed range, the increase adjustment of the power supply voltage of the rotation drive component is stopped. If the rotation speed W of the stirring tool at this time is still less than the lower limit value W2 of the specified speed range and greater than the specified threshold value W3, the power supply voltage of the rotation drive component is adjusted to V1=(1+2*a)*V0, and it is determined again whether the rotation speed W of the stirring tool at this time falls within the specified speed range. The above process is repeated until the rotation speed W of the stirring tool falls within the specified speed range, and the increase adjustment of the power supply voltage of the rotation drive component is stopped. In the above-mentioned process of adjusting and increasing the power supply voltage of the rotary drive component, it is also necessary to compare the power supply voltage V1 of the rotary drive component after each adjustment with the maximum power supply voltage VM that the rotary drive component can withstand. If V1>VM occurs, the power supply voltage of the rotary drive component exceeds the maximum power supply voltage that the rotary drive component can withstand. At this time, in order to protect the rotary drive component, it is necessary to stop further increasing the power supply voltage of the rotary drive component. In summary, in some embodiments, step S2203 may further specifically include: when the rotation speed of the stirring tool is less than the lower limit value of the specified speed range and greater than or equal to the specified threshold value, adjusting and increasing the power supply voltage of the rotary drive component in succession with a specified adjustment amplitude and obtaining the real-time rotation speed of the stirring tool and the real-time power supply voltage of the rotary drive component; when the real-time power supply voltage of the rotary drive component is less than or equal to the maximum power supply voltage that the rotary drive component can withstand and the real-time rotation speed of the stirring tool falls within the specified speed range, stopping the increase in the power supply voltage of the rotary drive component; when the real-time power supply voltage of the rotary drive component is greater than the maximum power supply voltage that the rotary drive component can withstand, stopping the increase in the power supply voltage of the rotary drive component.

[0087] Through the above setting, the controller adaptively adjusts the power supply voltage of the rotary drive assembly according to the relationship between the rotation speed of the stirring tool detected by the Hall sensor and the specified speed range, thereby adaptively adjusting the rotation speed of the stirring tool until the rotation speed of the stirring tool falls within the specified speed range. The adjustment of the power supply voltage of the rotary drive assembly is stopped to ensure that the stirring tool can rotate at a relatively optimal speed, thereby improving the stirring efficiency and stirring effect of the food processing equipment.

[0088] See also Figure 11 The present application also provides a speed adjustment control device 200, which is applicable to the food processing equipment shown in any of the above embodiments. The speed adjustment control device 200 includes a speed acquisition module 201 and a supply voltage adjustment module 202. The speed acquisition module 201 is used to obtain the speed of the stirring tool through a Hall sensor. The supply voltage adjustment module 202 is used to adjust the supply voltage of the rotary drive assembly based on the speed of the stirring tool, so that the speed of the stirring tool driven by the rotary drive assembly after adjustment falls within a specified speed range.

[0089] The speed adjustment control device 200 can detect and adaptively adjust the speed of the stirring knife to ensure that the speed of the stirring knife is within a reasonable range, thereby improving the stirring efficiency and stirring quality of the food processing equipment.

[0090] In some embodiments, the rotation speed acquisition module 201 is further configured to acquire a first moment and a second moment, and determine the rotation speed of the stirring blade based on the first moment, the second moment, and a specified number of times. The first moment represents the moment when the Hall sensor first meets a specified condition, where the specified condition is that the detected magnetic field strength of the Hall sensor is greater than a specified magnetic field strength. The second moment represents the moment when the Hall sensor meets the specified condition a number of times equal to a preset number of times, where the preset number of times is an integer greater than 1.

[0091] In some embodiments, the supply voltage regulation module 202 is further configured to:

[0092] When the rotation speed of the stirring tool is greater than the upper limit value of the specified speed range, the power supply voltage of the rotation drive component is reduced; when the rotation speed of the stirring tool falls within the specified speed range, the power supply voltage of the rotation drive component is kept unchanged; when the rotation speed of the stirring tool is less than the lower limit value of the specified speed range and greater than the specified threshold value, the power supply voltage of the rotation drive component is increased.

[0093] See also Figure 12The present invention also provides a food processing device according to an embodiment of the present invention. The food processing device further includes a memory 31, one or more processors 30, and one or more application programs. The one or more application programs are stored in the memory 31 and configured to be executed by the one or more processors 30. The one or more application programs are configured to execute the speed adjustment control method according to any of the above embodiments.

[0094] The processor 30 may include one or more processing cores. The processor 30 utilizes various interfaces and circuits to connect various components within the food processing device. It executes instructions, programs, code sets, or instruction sets stored in the memory 31, as well as accesses data stored in the memory 31, to perform various functions of the heater and process data. Optionally, the processor 30 may be implemented using at least one of the following hardware forms: a digital signal processor (DSP), a field-programmable gate array (FPGA), or a programmable logic array (PLA). The processor 30 may integrate one or a combination of a central processing unit (CPU), a graphics processing unit (GPU), and a modem. The CPU primarily processes the operating system, user interface, and application programs; the GPU is responsible for rendering and drawing display content; and the modem handles wireless communications. It is understood that the modem may not be integrated into the processor 30 and may be implemented separately via a communication chip.

[0095] The memory 31 may include random access memory (RAM) or read-only memory (ROM). The memory 31 may be used to store instructions, programs, codes, code sets, or instruction sets. The memory 31 may include a program storage area and a data storage area. The program storage area may store instructions for implementing an operating system, instructions for implementing at least one function (such as a touch function, a sound playback function, etc.), instructions for implementing the various method examples described below, and the like. The data storage area may also store data generated during use of the food processing device.

[0096] See also Figure 13An embodiment of the present application further provides a computer-readable storage medium 400, in which computer program instructions 410 are stored. The computer program instructions 410 can be called by a processor to execute the speed regulation control method described in the above embodiments.

[0097] The computer-readable storage medium 400 may be an electronic memory such as a flash memory, an EEPROM (Electrically Erasable Programmable Read-Only Memory), an EPROM, a hard disk, or a ROM. Alternatively, the computer-readable storage medium 400 may include a non-transitory computer-readable storage medium. The computer-readable storage medium 400 may have storage space for computer program instructions 410 for executing any of the method steps described above. These computer program instructions 410 may be read from or written to one or more computer program products. The computer program instructions 410 may be compressed in a suitable form.

[0098] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0099] Finally, it should be noted that the above embodiments are intended only to illustrate the technical solutions of this application and are not intended to limit them. Although this application has been described in detail with reference to the aforementioned embodiments, those skilled in the art will appreciate that they may modify the technical solutions described in the aforementioned embodiments or substitute equivalent features for some of the technical features. However, such modifications or substitutions do not deviate from the spirit and scope of the technical solutions of the various embodiments of this application.

Claims

1. A food processing device, It is characterized in that include: A housing having an inner cavity; An inner tank, disposed in the inner cavity; A stirring cutter, arranged in the inner pot; A magnet is arranged on the stirring tool; A controller, disposed in the inner cavity; A rotation drive assembly, which is transmission-connected to the stirring tool to drive the stirring tool to rotate, the rotation drive assembly is detachably connected to the stirring tool, and the rotation drive assembly is detachably electrically connected to the controller; A Hall sensor is electrically connected to the controller, and the Hall sensor is used to detect the magnetic field signal of the magnet. The controller controls the rotation speed of the rotary drive component according to the magnetic field signal.

2. The food processing device according to claim 1, It is characterized in that The rotary drive assembly includes a spring pin, a drive motor and a rotary output shaft; the spring pin is electrically connected to the drive motor, the rotary output shaft is transmission-connected to the output shaft of the drive motor, and the rotary output shaft is also detachably transmission-connected to the stirring tool; the controller includes a circuit board and a contact column, the circuit board is arranged in the inner cavity, the contact column is arranged on the circuit board, the contact column is electrically connected between the circuit board and the spring pin, and the contact column is detachably connected to the spring pin.

3. The food processing device according to claim 2, It is characterized in that The spring pin is provided with an inserting slot, and at least a part of the structure of the contact column is detachably inserted into the inserting slot, or the contact column is provided with an inserting slot, and at least a part of the structure of the spring pin is detachably inserted into the inserting slot.

4. The food processing device according to claim 2, It is characterized in that The shell is provided with a clearance hole and a convex edge, the contact column is passed through the clearance hole and extends to the outside of the shell, the convex edge is arranged on the side of the shell away from the inner cavity and surrounds the clearance hole, and the convex edge surrounds the contact column and extends to the outside of the shell.

5. The food processing device according to claim 2, It is characterized in that The stirring tool includes a stirring shaft, one end of which is embedded with a coupling nut, the coupling nut is provided with a connecting groove, one end of the rotating output shaft is inserted into the connecting groove, the side wall of the rotating output shaft is provided with a spiral rib, the inner side wall of the connecting groove is provided with a spiral groove adapted to the spiral rib, and the rotation direction of the stirring shaft during operation is the same as the rotation direction of the spiral rib.

6. The food processing device according to claim 2, It is characterized in that The rotary drive assembly also includes a mounting shell, the drive motor is arranged in the mounting shell, the spring pin is passed through the mounting shell; at least part of the structure of the spring pin is exposed from the mounting shell, the rotary output shaft is passed through the mounting shell, and at least part of the structure of the rotary output shaft is exposed from the mounting shell; the mounting shell is detachably connected to the shell.

7. The food processing device according to claim 6, It is characterized in that The rotary drive assembly also includes a mounting bracket, an elastic member and a clamping member, wherein the elastic member is connected between the mounting bracket and the clamping member, and the elastic member elastically holds the clamping member against the mounting shell so that at least a portion of the structure of the clamping member passes through the mounting shell and is clamped with the shell.

8. The food processing device according to claim 6, It is characterized in that A positioning assembly is arranged between the mounting shell and the shell, and the positioning assembly includes a positioning piece and a matching piece. The positioning piece is arranged on the shell, and the matching piece is arranged on the mounting shell. The positioning piece and the matching piece are snap-fitted to limit the mounting shell to be able to move relative to the shell only along the axial direction of the contact column; one of the positioning piece and the matching piece is a positioning sleeve, and the other is a positioning column, and the positioning column is inserted into the positioning sleeve.

9. The food processing apparatus according to claim 1, It is characterized in that The stirring tool includes a stirring shaft and at least one stirring blade, the stirring shaft is transmission-connected to the rotary drive assembly, and the stirring blade is connected to the stirring shaft; one of the magnets is provided on each stirring blade, and the magnet is arranged at one end of the stirring blade away from the bottom wall of the inner pot; the Hall sensor is arranged at one end of the controller close to the inner pot.

10. The food processing apparatus according to claim 2, It is characterized in that The circuit board has a positive power supply electrode and a negative power supply electrode. The number of the contact posts is two, and the two contact posts are electrically connected to the positive power supply electrode and the negative power supply electrode respectively; the number of the spring pins is two, and the two spring pins are electrically connected to the two contact posts respectively.

11. A food processing device according to any one of claims 1 to 10, It is characterized in that The food processing equipment also includes a refrigeration mechanism, which includes an evaporator, a compressor and a condenser; the evaporator is arranged outside the inner pot and located at the bottom of the inner pot, the evaporator is used to accommodate a heat exchange medium, the compressor and the condenser are both arranged in the inner cavity, the compressor is connected to the evaporator, and the condenser is connected to the compressor.

12. A speed regulation control method, It is characterized in that The speed regulation control method is applied to the food processing equipment according to any one of claims 1 to 11, and the method comprises: The rotation speed of the stirring tool is obtained through the Hall sensor; The power supply voltage of the rotary drive component is adjusted based on the rotation speed of the stirring tool, so that the rotation speed of the stirring tool driven by the adjusted rotary drive component falls into a specified rotation speed range.

13. The speed regulation control method according to claim 12, It is characterized in that The method of obtaining the rotation speed of the stirring tool by using the Hall sensor includes: Acquire a first moment, where the first moment represents a moment when the Hall sensor first meets a specified condition, where the specified condition is that the detected magnetic field strength of the Hall sensor is greater than a specified magnetic field strength; Acquire a second moment, where the second moment represents a moment when the number of times the Hall sensor satisfies the specified condition is equal to a preset number, where the preset number is an integer greater than 1; The rotation speed of the stirring blade is determined based on the first time, the second time, and the specified number of times.

14. The speed regulation control method according to claim 12, It is characterized in that The step of adjusting the power supply voltage of the rotary drive component based on the rotation speed of the stirring tool comprises: When the rotation speed of the stirring tool is greater than the upper limit of the specified rotation speed range, reducing the power supply voltage of the rotation drive component; When the rotation speed of the stirring tool falls within a specified rotation speed range, the power supply voltage of the rotary drive component is kept unchanged; When the rotation speed of the stirring tool is less than a lower limit of a specified rotation speed range and greater than or equal to a specified threshold, the power supply voltage of the rotation drive component is increased.

15. The speed regulation control method according to claim 12, It is characterized in that The method further comprises: when the rotation speed of the stirring tool is less than a specified threshold, adjusting the supply voltage of the rotation driving component to zero.

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