Method for controlling resetting of stirring part of food material stirring machine and food material stirring machine

Abstract

The invention provides a method for controlling resetting of a stirring part of a food material stirring machine and the food material stirring machine. The method comprises the following steps: acquiring rotating speed data of a driving device of the food material stirring machine; obtaining position data of a trigger piece of the food material stirrer; the rotating speed data and the position data are sent to a controller of the food material stirring machine; and under the condition that the controller receives the first closing signal and the rotating speed data and the position data meet preset conditions, the controller sends a second closing signal to the driving device to control the driving device to stop rotating, so that the stirring part stops at a preset position. The rotation speed data of the driving component and the position data of the stirring component are acquired, and the controller can more accurately control the action of the driving device based on the cooperation of the rotation speed data and the position data, so that the accurate control of the reset position of the stirring component is realized.

Description

Technical Field

[0001] This application relates to the field of control technology for resetting the mixing component of a food mixer, and particularly to a control method for resetting the mixing component of a food mixer and a food mixer. Background Technology

[0002] Currently, some food processors on the market (such as food blenders) often have accessories that cannot be reset to a designated position or have poor reset accuracy. Taking food blenders as an example, if the mixing component cannot accurately reset to the preset position, when the blender head is flipped to move the mixing component out of the mixing bowl for component replacement or food addition, the mixing component may collide with the mixing bowl, causing scratches to the mixing bowl and making it difficult to replace the mixing component efficiently. For example, utility model patent CN211534116U discloses a food blender whose mixing head reset uses a single position sensor in conjunction with a controller. During the reset process, because the mixing head may still be rotating at a relatively high speed, even if the position sensor can accurately detect the corresponding position of the mixing head, the high-speed inertial rotation of the mixing head after the controller issues a shutdown signal may result in poor reset accuracy. Summary of the Invention

[0003] The purpose of this application is to provide a control method for resetting the mixing component of a food mixer and a food mixer.

[0004] The embodiments of this application adopt the following technical solution: a control method for resetting the stirring component of a food mixer, the method comprising: Obtain the rotational speed data of the drive unit of the food mixer; The position data of the trigger of the food mixer is obtained, wherein the positions of the trigger and the mixing component change under the driving action of the driving device; The rotation speed and position data are sent to the controller of the food mixer; When the controller receives the first shutdown signal and the rotation speed data and the position data meet the preset conditions, the controller sends a second shutdown signal to the drive device to control the drive device to stop rotating, so that the stirring component stops at the preset position; wherein, the first shutdown signal is sent by the switch of the food mixer.

[0005] By acquiring the rotational speed data of the drive component and the position data of the stirring component, and by coordinating the controller based on the aforementioned rotational speed data and position data, when the rotational speed data of the drive device is low, the rotational speed of the stirring component is also low. When the position of the stirring component reflected in the position data also meets the set conditions, after the controller issues a second shut-off signal, because the speed of the stirring component is low, its inertia for continuing to rotate is small, and the stopping action of the stirring component can be controlled more precisely, thereby achieving precise control of the reset position of the stirring component.

[0006] In some embodiments, the rotational speed data and the position data satisfy preset conditions, including: The speed data value is lower than the speed threshold; The values ​​of the location data meet the location threshold.

[0007] In some embodiments, obtaining the rotational speed data of the drive unit of the food blender includes: When the switch is in the non-off position, the rotational speed data of the drive motor of the food mixer is obtained through the first sensing component; The first sensing component is disposed on the drive motor of the drive device.

[0008] In some embodiments, obtaining the position data of the trigger of the food mixer includes: When the switch is in the non-off position, the position data of the trigger of the food mixer relative to the second sensing component is obtained through the second sensing component; Specifically, the position data obtained by the second sensing component is at its maximum value when the trigger passes by the second sensing component.

[0009] In some embodiments, the method further includes: If the speed data acquisition of the drive device times out; and / or if the position data of the trigger cannot be acquired, the controller controls the food mixer to enter a standby state.

[0010] In some embodiments, the method further includes: After receiving the first shutdown signal, the controller sends a reset command to the drive device; After receiving the reset command, the speed of the drive device is reduced to the reset speed.

[0011] This application embodiment also provides a food blender, including a base and a head, a mixing bowl, a mixing component, a controller, and a switch disposed on the base; the head includes a drive device for driving the mixing component to rotate within the mixing bowl; the switch is electrically connected to the drive device via the controller; the food blender further includes: The device comprises a first sensing component, a second reaction component, and a trigger, wherein the trigger rotates synchronously with the stirring component; the first sensing component and the second reaction component are electrically connected to the controller, wherein the first sensing component is used to send the obtained rotational speed data of the driving device to the controller, and the second sensing component is used to send the obtained position data of the trigger to the controller; The switch is used to send a start signal and a first stop signal to the controller. The controller uses the method described in any of the above embodiments to control the stirring component to reset to a preset position. When the stirring component is in the preset position, the head can rotate synchronously with the stirring component so that the stirring component can be removed from the stirring bowl without contacting the stirring bowl.

[0012] In some embodiments, the first sensing element is disposed on the drive motor of the drive device for detecting the rotational speed of the drive motor.

[0013] In some embodiments, the machine head further includes an upper cover and a lower cover that are interlocked with each other, the second sensing component is disposed on the lower cover, the trigger is disposed on the turntable, the turntable is connected to the driving device and rotates with the driving device.

[0014] In some embodiments, when the stirring component is reset to a preset position, the trigger rotates from the preset position to a first position.

[0015] The beneficial effects of the embodiments of this application are as follows: By acquiring the rotational speed data of the drive component and the position data of the stirring component, and by coordinating the controller based on the aforementioned rotational speed data and position data, when the rotational speed data of the drive device is low, the rotational speed of the stirring component is also low. When the position of the stirring component reflected in the position data also meets the set conditions, after the controller issues the second shut-off signal, because the speed of the stirring component is low, its inertia for continuing to rotate is small, and the stopping action of the stirring component can be controlled more precisely, thereby achieving precise control of the reset position of the stirring component. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the food mixer of this application; Figure 2 This is a cross-sectional view of the food mixer of this application when the mixing component is in a preset position; Figure 3 This is a cross-sectional view of the food mixer of this application when the mixing components are flipped upwards. Figure 4 This is an exploded view of the food mixer used in this application. Figure 5 This is a diagram showing the placement of the trigger and the second sensing component in this application. Figure 6 This is a schematic diagram of the rotating and resetting structure of the stirring component in this application; Figure 7 This is a flowchart illustrating the workflow structure of the food mixer in this application; Figure 8 This is a logic block diagram of the control method for resetting the mixing component of the food mixer in this application.

[0018] Reference numerals: 1 base, 1.1 button assembly, 2 head, 2.1 top cover, 2.2 motor assembly, 2.3 first sensing element, 2.4 gearbox assembly, 2.5 trigger element, 2.6 turntable, 2.7 second sensing element, 2.8 bottom cover, 2.9 knob assembly, 3 mixing bowl, 4 mixing accessories. Detailed Implementation

[0019] Various embodiments and features of this application are described herein with reference to the accompanying drawings.

[0020] It should be understood that various modifications can be made to the embodiments described herein. Therefore, the above description should not be considered as limiting, but merely as an example of embodiments. Other modifications within the scope and spirit of this application will be apparent to those skilled in the art.

[0021] The accompanying drawings, which are included in and form part of this specification, illustrate embodiments of the present application and, together with the general description of the present application given above and the detailed description of the embodiments given below, serve to explain the principles of the present application.

[0022] These and other features of this application will become apparent from the following description of preferred forms of embodiments given as non-limiting examples, with reference to the accompanying drawings.

[0023] It should also be understood that although this application has been described with reference to some specific examples, those skilled in the art can certainly implement many other equivalent forms of this application.

[0024] The above and other aspects, features and advantages of this application will become more apparent when taken in conjunction with the accompanying drawings and in view of the following detailed description.

[0025] Specific embodiments of this application are described thereafter with reference to the accompanying drawings; however, it should be understood that the claimed embodiments are merely examples of this application, which can be implemented in various ways. Well-known and / or repeated functions and structures are not described in detail to avoid unnecessary or redundant details that could obscure the application. Therefore, the specific structural and functional details claimed herein are not intended to be limiting, but merely serve as the basis and representative basis for the claims to teach those skilled in the art to use this application in a variety of substantially any suitable detailed structures.

[0026] This specification may use the phrases “in one embodiment,” “in another embodiment,” “in yet another embodiment,” or “in other embodiments,” all of which may refer to one or more of the same or different embodiments according to this application.

[0027] To address the problems in the background art, this application provides a food blender, combined with... Figure 1 , Figure 2 , Figure 3 The food blender consists of a base (1), a head (2), a mixing bowl (3), mixing components (4), a controller, and switches. Figure 1 As can be seen, the base 1 is on one side, and the machine head 2 is located on the other side of the base 1. The machine head 2 is rotatably mounted on the base 1, and the machine head 2 can be flipped relative to the base 1.

[0028] like Figure 1 , 4 As shown in Figure 5, the base 1 has a button assembly 1.1. Pressing the button assembly 1.1 can act as a release button, allowing the machine head 2 to rotate relative to the base 1. After the button assembly 1.1 is reset, the mechanism 2 is locked and cannot be rotated.

[0029] like Figure 4 As shown, the machine head 2 comprises a machine head cover 2.1, a motor assembly 2.2, a first sensing component 2.3, a gearbox assembly 2.4, a trigger component 2.5, a turntable 2.6, a second sensing component 2.7, a machine head lower cover 2.8, and a knob assembly 2.9.

[0030] like Figure 1 , 2 As shown in Figure 3, the mixing head 2 can rotate around a rotation axis connected to the base 1. The center line of the rotation axis is the center absorption M shown in the figure, meaning the mixing head can rotate and lift around the center line M to allow the mixing component 4 to be disassembled and assembled, and ingredients to be added to the mixing bowl 3. It is necessary to ensure that the mixing component 4 does not touch the mixing bowl 3 during the rotation and lifting process of the mixing head 2. The mixing component 4 can be installed in the output interface of the gearbox assembly 2.4 inside the mixing head 2. During operation, it rotates and mixes around the mixing bowl 3, such as... Figure 3 As shown, during the lifting of the machine head 2, in order to prevent the stirring component 4 from touching the stirring bowl 3, it is necessary to ensure that the stirring component 4 rotates to... Figure 2 The rightmost side of the mixing bowl, closest to the rotation center line M, has the smallest rotation radius of the stirring component 4, Rmin. Along the tilting path when the stirring component is lifted, the shortest distance from the rotation center M to the mixing bowl is L; Rmin < L must be ensured. If the stirring component 4 does not rotate to the rightmost side, it will collide with the mixing bowl 3 during the lifting process.

[0031] The stirring component 4 can be a stirring head, a cutting blade, or other stirring structures. Stirring components that are not structurally diverse can be replaced.

[0032] The mixing bowl 3 can be placed on the base 1. The mixing bowl 3 can be made of steel or other materials.

[0033] After each use, the food blender stops rotating when the blending component 4 stops. Figure 2 The rightmost position of the mixing bowl 3 shown can be understood as the preset position. When the next mixing begins, the mixing component 4 starts mixing from the preset position and returns to the preset position when it stops.

[0034] The overall connection relationship and working principle of the machine, such as Figure 4 As shown, the drive device can be understood as a structure including a motor assembly 2.2 and a gearbox assembly 2.4. The motor assembly 2.2 is assembled with the gearbox assembly 2.4, and the motor assembly 2.2 can drive the gearbox assembly 2.4 to move. During operation, the motor assembly 2.2 drives the gearbox assembly 2.4 to rotate. In this application, a first sensing component 2.3 can be assembled at one end of the motor assembly 2.2 to detect the motor speed of the motor assembly 2.2. The first sensing component 2.3 can send the detected motor speed data to the controller. A trigger 2.5 is assembled on a turntable 2.6, which is assembled with the gearbox assembly 2.4, and the gearbox assembly 2.4 drives the turntable 2.6 to rotate. A second sensing component 2.7 can be assembled on the lower cover 2.8 of the machine head to sense the trigger 2.5 rotating with the turntable 2.6 and detect different signals. The second sensing component 2.7 can send the detected position data of the trigger 2.5 to the controller.

[0035] The switch can be understood as a knob assembly 2.9, which can be mounted on the lower cover 2.8 of the machine head and is used to control the working speed of the food blender. For example, the higher the speed, the faster the food blender rotates. When the speed is in the off position (speed 0), it indicates that the use of the food blender needs to be stopped (including paused). In the non-off position, the knob assembly 2.9 can send a start signal to the controller. When the knob assembly 2.9 is turned to the off position, it can send a first stop signal to the controller.

[0036] The upper cover 2.1 and the lower cover 2.8 of the machine head are assembled to form an installation space for the drive device and other structures. The motor assembly 2.2, the gearbox assembly 2.4, and the turntable 2.6 can be assembled in the above-mentioned installation space.

[0037] The machine head 2 is assembled with the base 1. The base 1 has a button assembly 1.1 with an internal clutch structure. When the button assembly 1.1 is pressed, it can act as a release button, allowing the machine head 2 to rotate around the center line M. When the button assembly 1.1 is reset upwards, the machine head 2 can be fixed at the working angle position.

[0038] When button assembly 1.1 is pressed, the machine head 2 rotates and lifts, and the stirring component 4 assembles with gearbox assembly 2.4. After the machine head 2 rotates and the stirring component 4 moves into the stirring bowl 3, button assembly 1.1 returns to its original position, and the machine head 2 is fixed. During operation, gearbox assembly 2.4 drives the stirring component 4 to rotate and stir. When the operation is complete, knob assembly 2.9 is rotated to position 0, and the program logic controls the stirring component to return to its preset position.

[0039] For example, such as Figure 5 and Figure 6 As shown, the turntable 2.6 rotates with the stirring component 4, as indicated by the arrow. The internal trigger 2.5 rotates together. When it reaches the position of the second sensing component 2.7, the signal of the second sensing component 2.7 changes. The controller (e.g., MCU) detects the signal change and issues a command to stop the motor. Due to inertia, the movement does not stop immediately. To ensure that the stirring component 4 stops precisely at the preset position, the trigger 2.5 is installed approximately 45 degrees in front of the preset position along the rotation direction shown in the figure. That is, when the stirring component 4 returns to the preset position, the trigger 2.5 rotates along the... Figure 6The arrow continues to move forward from the preset position to a first position at a 45-degree angle to the preset position. After sensing signals that the corresponding position and rotation speed data meet preset conditions, the controller sends a second shut-off signal to stop the drive unit from driving the stirring component 4, thus stopping the movement of the stirring component 4. Therefore, placing the trigger 2.5 at approximately a 45-degree angle in front of the rotation direction (this angle is adjustable) has been verified in actual use, showing that the stirring component 4 can accurately reset to the preset position. At the preset position, pressing the button assembly 1.1 lifts the machine head 2 and the stirring component 4. The stirring component 4 can then rotate upwards synchronously with the machine head 2, allowing it to move upwards to the position where it can be removed from the mixing bowl 3 without contacting it. This improves the reset accuracy of the stirring component 4, preventing collisions with the mixing bowl 3 during lifting, which could prevent the stirring component 4 from being lifted to a position where it can be replaced, thus improving the user experience.

[0040] The first sensing component 2.3 and the second sensing component 2.7 described above can be sensors with the same sensing principle or sensors with different sensing principles. For example, a Hall sensor or other sensors such as an infrared switch can be used, as long as they can achieve the acquisition and transmission of the aforementioned rotation speed data and position data. This application is only used as an example and does not constitute a limitation on the scope of protection of the claims.

[0041] The trigger 2.5 used in conjunction with the second sensing component 2.7 can be a magnet, such as a permanent magnet or other magnetic component.

[0042] A mounting position for installing the trigger 2.5 can be set on the turntable 2.6. The trigger 2.5 can be fixed in the mounting position to keep the relative position of the trigger 2.5 and the turntable 2.6 unchanged, thereby improving the sensing accuracy of the second sensing component 2.7 for the trigger 2.5 and thus improving the reset accuracy of the stirring component 4.

[0043] This application also provides a control method for resetting the mixing component of the above-mentioned food mixer, such as... Figure 7 As shown, the method may include the following steps: S10, Obtain the rotation speed data of the drive device of the food mixer; S20, obtain the position data of the trigger of the food mixer, wherein the positions of the trigger and the mixing component change under the driving action of the driving device; S30, the rotation speed data and position data are sent to the controller of the food mixer; S40, when the controller receives the first shut-off signal and the rotation speed data and the position data meet the preset conditions, the controller sends a second shut-off signal to the drive device to control the drive device to stop rotating and stop the stirring component at the preset position; wherein, the first shut-off signal is sent by the switch of the food mixer.

[0044] For example, during the operation of the food blender, the drive device drives the mixing component 4 to rotate. The drive device has a certain rotational speed, and the rotational speed data of the drive device can be obtained and sent to the controller. When the drive device stops driving, the corresponding rotational speed data value is 0. During the operation of the drive device, the rotational speed data value is relatively small (less than the rotational speed data corresponding to the first gear in the working state). Both the trigger element 2.5 and the mixing component 4 can rotate under the drive of the drive device, but the relative positions of the trigger element 2.5 and the mixing component remain unchanged. When the food is being mixed, the position of the trigger element changes. By obtaining the position data of the trigger element 2.5, the position of the mixing component 4 can be determined. The position data of the trigger element 2.5 is also sent to the controller.

[0045] The controller can control the drive device by combining the received speed data of the drive device and the position data of the trigger 2.5, and then accurately send the second shut-off signal to precisely control the reset position of the stirring component 4.

[0046] Specifically, when the switch is adjusted to the off position (position 0), the switch sends a first off signal to the controller. Upon receiving the first off signal, and provided the speed and position data meet preset conditions, the controller sends a second off signal to the drive unit. Upon receiving the second off signal, the drive unit stops rotating, thereby gradually stopping the stirring component 4, which then stops at a preset position. The off position can be adjusted manually, or the switch can automatically adjust to the off position after the required stirring time has elapsed.

[0047] By acquiring the rotational speed data of the drive component and the position data of the stirring component, and by coordinating the controller based on the aforementioned rotational speed data and position data, when the rotational speed data of the drive device is low, the rotational speed of the stirring component is also low. When the position of the stirring component reflected in the position data also meets the set conditions, after the controller issues the second shut-off signal, because the speed of the stirring component is low, its inertia for continuing to rotate is small, and the stopping action of the stirring component can be controlled more precisely, thereby achieving precise control of the reset position of the stirring component.

[0048] In some embodiments, the preset conditions may include a rotational speed data value lower than a rotational speed threshold and a position data value meeting a position threshold. For example, a rotational speed data value lower than 40 revolutions per minute indicates that the rotational speed of the drive device is very low; a position data value change of 500~600 Gs indicates that the distance between the trigger and the second sensing component is very small, and the trigger is close to or located at the corresponding preset position.

[0049] In some embodiments, rotational speed data can be obtained through a first sensing element 2.3, which can be a Hall sensor or other sensors.

[0050] The first sensing component 2.3 can be installed on the motor assembly 2.2 of the drive device to acquire the speed data of the drive motor.

[0051] In some embodiments, the position data of the trigger can be obtained through the second sensing component 2.7, which can be installed at a position corresponding to a preset position. When the stirring component 4 rotates to a position far from the preset position, the distance between the trigger 2.5 and the second sensing component 2.7 is also larger, and the magnetic intensity of the trigger sensed by the second sensing component 2.7 is also smaller. However, when the stirring component 4 rotates to the preset position, the trigger 2.5 is located at the position corresponding to the preset position, and the magnetic intensity of the trigger sensed by the second sensing component 2.7 is at its maximum.

[0052] In some embodiments, the method further includes detecting a timeout in acquiring the rotational speed data of the drive device; and / or, if the position data of the trigger 2.5 is not acquired, the controller controls the food mixer to enter a standby state. For example, in the working state (non-off position), the first sensing element 2.3 can acquire the rotational speed data of the drive device N times within one minute. If the first sensing element 2.3 does not acquire rotational speed data within one minute, or acquires very little rotational speed data, it indicates that the drive device may be faulty, and the food mixer can be controlled to enter a standby state for inspection or maintenance. When the second sensing element does not acquire the position data of the trigger 2.5, it indicates that the mixing element 4 is not rotating, and the food mixer can also be controlled to enter a standby state for inspection or maintenance.

[0053] In some embodiments, after the controller receives a first shutdown signal, the controller sends a reset command to the drive device. Upon receiving the reset command, the drive device reduces its rotational speed to the reset speed.

[0054] For example, after receiving the first shutdown signal, the controller can first send a reset command to the drive device. After receiving the reset command, the drive device can first reduce its speed, for example, to below 40 revolutions per minute. At this time, if the speed data and position data simultaneously meet the preset conditions, the controller then sends a second shutdown signal to the drive device to stop the drive device.

[0055] Combination Figure 7 When the machine is off, the power can be turned on, and the food blender is in standby mode. The second sensor 2.7 detects a reading, indicating that it is functioning correctly. The blender can be set to speed 0 or adjusted to speed 0. Then, the knob assembly 2.9 can be moved away from speed 0 to activate the blender. The drive unit rotates the mixing component 4 within the mixing bowl 3, thus blending the ingredients within.

[0056] The operating state can be adjusted by setting the knob assembly 2.9 to any position between level 1 and level 12 to control the rotation speed of the mixing component 4. If the second sensing component fails to detect a sensor value, or if the motor speed detection by the first sensing component times out, it indicates that although the food mixer is in the processing mode, a fault has occurred, such as the mixing component 4 not rotating or the drive motor not starting. In this case, the food mixer will return to standby mode. Inspection or repair work can then be performed on the food mixer.

[0057] In operation, adjusting knob assembly 2.9 to position 0 will control the machine to stop. The stopping process requires the stirring component 4 to stop at a designated position (i.e., the preset position). The second sensing component 2.7 can determine whether the stirring component 4 is in the correct position. As the drive speed of the drive device decreases, when the stirring component reaches the position where it needs to stop, the second sensing component detects the sensing signal from the trigger and stops, and the machine enters standby mode.

[0058] Combination Figure 8 Under normal operating conditions, the sensor value of the second sensing component will remain stable within a certain range (e.g., a constant value x1 = 5~10). When a trigger passes through the sensor, the sensor value will change (e.g., the sensor value changes from x1 = 5~10 to x2 = 500~600). The stronger the magnetism of the trigger, the greater the change in value.

[0059] The controller's control program will cause the second sensing component to continuously detect the sensor value of the trigger element, while simultaneously using the first sensing component to continuously detect the rotational speed n of the drive motor.

[0060] During operation, the program executes a reset command to reduce the rotation speed to the reset speed (e.g., the bone position rotation speed n is set to below 40 rpm) only when the gear is set to 0. If the following two conditions are met simultaneously, the program issues a second shutdown signal command to stop the drive motor: The first sensing component detects that the motor speed n is below 40 revolutions; the sensor value of the second sensing component changes (for example, the sensor value changes from x1=5~10 to x2=500~600, where x1 is a constant value and x2 is a trigger value).

[0061] Both of the above conditions are indispensable. If both conditions are met, the machine will stop and the stirring components can be precisely reset to their original positions.

[0062] The foregoing has described in detail several embodiments of this application, but this application is not limited to these specific embodiments. Those skilled in the art can make various variations and modifications based on the concept of this application, and all such variations and modifications should fall within the scope of protection claimed in this application.

Claims

1. A method for controlling the resetting of the mixing component of a food mixer, characterized in that, The method includes: Obtain the rotational speed data of the drive unit of the food mixer; The position data of the trigger of the food mixer is obtained, wherein the positions of the trigger and the mixing component change under the driving action of the driving device; The rotation speed and position data are sent to the controller of the food mixer; When the controller receives the first shutdown signal and the rotation speed data and the position data meet the preset conditions, the controller sends a second shutdown signal to the drive device to control the drive device to stop rotating, so that the stirring component stops at the preset position; wherein, the first shutdown signal is sent by the switch of the food mixer.

2. The method according to claim 1, characterized in that, in, The rotational speed data and the position data satisfy preset conditions, including: The speed data value is lower than the speed threshold; The values ​​of the location data meet the location threshold.

3. The method according to claim 1, characterized in that, Obtaining the rotational speed data of the drive unit of the food mixer includes: When the switch is in the non-off position, the rotational speed data of the drive motor of the food mixer is obtained through the first sensing component; The first sensing component is disposed on the drive motor of the drive device.

4. The method according to claim 1, characterized in that, Obtaining the position data of the trigger element of the food mixer includes: When the switch is in the non-off position, the position data of the trigger of the food mixer relative to the second sensing component is obtained through the second sensing component; Specifically, the position data obtained by the second sensing component is at its maximum value when the trigger passes by the second sensing component.

5. The method according to claim 1, characterized in that, The method further includes: If the speed data acquisition of the drive device times out; and / or if the position data of the trigger cannot be acquired, the controller controls the food mixer to enter a standby state.

6. The method according to claim 1, characterized in that, The method further includes: After receiving the first shutdown signal, the controller sends a reset command to the drive device; After receiving the reset command, the speed of the drive device is reduced to the reset speed.

7. A food blender, comprising a base and a head, a mixing bowl, a mixing component, a controller, and a switch disposed on the base; the head includes a drive device for driving the mixing component to rotate within the mixing bowl, and the switch is electrically connected to the drive device via the controller, characterized in that... The food blender also includes: The device comprises a first sensing component, a second reaction component, and a trigger, wherein the trigger rotates synchronously with the stirring component; the first sensing component and the second reaction component are electrically connected to the controller, wherein the first sensing component is used to send the obtained rotational speed data of the driving device to the controller, and the second sensing component is used to send the obtained position data of the trigger to the controller; The switch is used to send a start signal and a first stop signal to the controller. The controller uses the method described in any one of claims 1 to 6 to control the stirring component to reset to a preset position. When the stirring component is in the preset position, the head can rotate synchronously with the stirring component so that the stirring component can be removed from the stirring bowl without contacting the stirring bowl.

8. The food mixer according to claim 7, characterized in that, The first sensing component is disposed on the drive motor of the drive device and is used to detect the rotational speed of the drive motor.

9. The food mixer according to claim 7, characterized in that, The machine head also includes an upper cover and a lower cover that are interlocked with each other. The second sensing component is disposed on the lower cover of the machine head, and the trigger is disposed on the turntable. The turntable is connected to the driving device and rotates with the driving device.

10. The food mixer according to claim 7, characterized in that, When the stirring component is reset to the preset position, the triggering component rotates from the preset position to the first position.

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