Fan control method of food processor

Abstract

The embodiment of the invention provides a fan control method of a food processing machine, the food processing machine is provided with a panel assembly, a liquid outlet and a liquid receiving cup assembly, the food processing machine further comprises a fan and an air outlet channel communicated with the fan, and the fan and the air outlet channel are both arranged in the food processing machine; an air outlet is formed in the tail end of the air outlet channel and faces a cup opening of the liquid receiving cup assembly, and the fan blows air to the liquid outlet and the cup opening of the liquid receiving cup assembly through the air outlet and is used for changing the circulation path of steam flowing out of the liquid outlet and the cup opening of the liquid receiving cup assembly and blowing away steam flowing to the panel assembly; the fan control method comprises the steps that according to the relation between the temperature of liquid flowing out of the liquid outlet and the preset temperature, the fan is controlled to stop working after being started for preset time. The problem that the touch response time is prolonged due to the fact that steam adheres to the panel assembly to affect the touch experience can be solved.

Description

Technical Field

[0001] This invention relates to the field of food processing technology, and more specifically, to a fan control method for a food processing machine. Background Technology

[0002] In existing hands-free blenders, during the liquid discharge or cleaning process, the steam carried by the liquid discharged from the drain port flows directly onto or to the bottom of the panel assembly, gradually accumulating there before rising to the surface with the air. This steam formation on the panel assembly surface not only affects the user's touch experience, causing touch malfunctions or longer response times, thus reducing the tactile experience, but also negatively impacts the user's visual experience, further diminishing the overall user experience.

[0003] The existing solution involves adjusting the structure of the panel assembly, such as setting the bottom of the panel assembly to be inclined or far away from the drain outlet. This not only reduces the usable space and aesthetics of the panel assembly, but also allows steam to flow to the surface of the panel assembly when the liquid temperature is too high.

[0004] Existing technologies in this field include methods that use fans to dissipate heat from the discharged liquid inside the cup, or to dissipate heat during the discharge process, facilitating timely consumption by the user. Other fields also employ fans to blow air onto food; for example, a fan is installed at the noodle outlet of a noodle machine to dissipate heat from the processed noodles and prevent them from sticking together. However, all of the above solutions use downward airflow to dissipate heat, and steam still rises with the air to the panel assembly, failing to solve the problem of steam forming on the panel assembly.

[0005] Therefore, providing a food processing machine that controls fan blowing to disperse steam flowing to the panel assembly and improves the user experience has become a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a fan control method for a food processing machine, so as to solve the problem that during the liquid drainage stage of the pulping process and automatic cleaning process or after the food processing machine has finished working, the steam generated by the liquid will accumulate at the bottom of the panel assembly and flow to the surface of the panel assembly with the air, affecting the touch effect of the panel assembly and the user experience.

[0007] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0008] A fan control method for a food processor, the food processor having a panel assembly, a drain port, and a liquid receiving cup assembly, and further including: a fan and an air outlet channel communicating with the fan, both disposed within the food processor; an air outlet is provided at the end of the air outlet channel, the air outlet being positioned facing the opening of the liquid receiving cup assembly, the fan blowing air through the air outlet to the drain port and the opening of the liquid receiving cup assembly, thereby changing the flow path of steam flowing out of the drain port and the opening of the liquid receiving cup assembly, and blowing away the steam flowing towards the panel assembly; the fan control method includes: controlling the fan to stop working after a preset time based on the relationship between the temperature of the liquid flowing out of the drain port and a preset temperature.

[0009] Furthermore, based on the relationship between the temperature of the liquid at the drain outlet and the preset temperature, the fan is controlled to stop working after a preset time, including: when the food processor enters the drain stage, detecting the temperature of the liquid flowing out of the drain outlet; determining whether the liquid temperature is greater than the preset temperature; and based on the determination result, controlling the fan to start for a preset time to remove the steam flowing to the panel assembly.

[0010] Furthermore, the preset time includes a first preset time and a second preset time, and the fan control method includes: when the temperature of the liquid is greater than the preset temperature, controlling the fan to start for the first preset time and then stop working; when the temperature of the liquid is less than or equal to the preset temperature, controlling the fan to start for the second preset time and then stop working; wherein, the first preset time is greater than the second preset time.

[0011] Furthermore, the fan control method includes: after the drainage stage is completed, detecting whether the liquid receiving cup assembly is in a preset position; controlling the fan to stop working or continue to work based on whether the liquid receiving cup assembly is in the preset position; if the liquid receiving cup assembly is detected to be in the preset position, controlling the fan to continue to work; if the liquid receiving cup assembly is detected to be not in the preset position, controlling the fan to stop working; wherein, the preset position is below the drainage port.

[0012] Furthermore, if the liquid receiving cup assembly is detected not to be in the preset position, after controlling the fan to stop working, the method further includes: if the liquid receiving cup assembly is detected again not to be returned to the preset position within a set time, controlling the fan to continue to stop working; if the liquid receiving cup assembly is detected again to be returned to the preset position within a set time, controlling the fan to start or continue to stop working depending on whether there is residual slurry in the liquid receiving cup assembly.

[0013] Furthermore, depending on whether there is residual slurry in the receiving cup assembly, the fan is controlled to turn on or remain off, including: if there is residual slurry in the receiving cup assembly, the fan is controlled to turn on; if there is no residual slurry in the receiving cup assembly, the fan is controlled to remain off.

[0014] Furthermore, the food processor also includes a main unit, a cup body detachably mounted on the main unit, and function buttons on the panel assembly. The fan control method further includes: after the food processor finishes working, detecting whether the cup body is in a set position or whether the function button is pressed; and controlling the fan to stop working or continue to work based on whether the cup body is in a set position or whether the function button is pressed.

[0015] Furthermore, the food processing machine also includes a control circuit, which includes: a control system; a fan drive circuit, connected to the control system and the fan, used to detect the current flowing into the fan and send the detected current value to the control system; the control system is used to operate or alarm according to whether the detected current value is within a preset current range.

[0016] Furthermore, the control system operates when the detected current value is within the preset current range; the control system alarms when the detected current value is outside the preset current range.

[0017] Furthermore, the fan drive circuit includes: a coil, connecting the fan and an external power supply, for wireless coupling with the coil inside the fan; a first resistor, one end of which is connected to the output terminal of the control system; a field-effect transistor, the gate of which is connected to the other end of the first resistor, and the drain of the field-effect transistor is connected to the coil; a second resistor, connecting the source of the field-effect transistor and ground signal, for detecting the current value flowing into the fan; and a third resistor, one end of which is connected between the second resistor and the source of the field-effect transistor, and the other end of which is connected to the input terminal of the control system.

[0018] The beneficial effects of the embodiments of the present invention are:

[0019] 1. This application provides a fan control method for a food processor. By installing a fan inside the food processor and positioning the fan corresponding to the drain port, the fan is controlled to operate for a preset time based on the relationship between the temperature of the liquid at the drain port and a preset temperature. This blows away the steam flowing from the drain port and the liquid receiving cup assembly to the panel assembly. On the one hand, this prevents the panel assembly from being affected by steam adhesion, which would affect the touch experience and cause a longer touch response time. On the other hand, it prevents the surface of the panel assembly from becoming blurry, which would reduce the user experience.

[0020] 2. In this embodiment, the fan is positioned corresponding to the drain port, and the airflow is directed towards the panel assembly, i.e., upward airflow. Compared with the downward airflow method in the prior art, it can not only disperse the steam accumulated at the bottom of the panel assembly, but also change the direction of steam flow, causing the steam to flow towards the surface of the panel assembly, which can further reduce the problem of steam adhering to the panel assembly.

[0021] 3. In this embodiment of the application, the fan is controlled to work or turn on by detecting whether the liquid receiving cup assembly is in a preset position after the liquid drainage stage is completed. This allows the fan to be turned on to disperse steam when the liquid drainage port is not draining, the liquid receiving cup assembly is still in the preset position, and there is residual slurry in the liquid receiving cup assembly, thereby preventing the steam generated by the residual slurry from flowing to the panel assembly.

[0022] 4. In this embodiment of the application, a fan drive circuit is also provided in the control circuit. The fan drive circuit is connected to the control system and the fan. It is used to receive signals from the control system to drive the fan to start or stop. At the same time, it can detect the current value flowing into the fan in real time and transmit it to the control system so that the control system can judge in real time whether the detected current value is within the preset current range, so as to work normally or alarm, thereby improving the stability of the control circuit operation. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly described below.

[0024] Figure 1 This is a schematic diagram of the structure of the food processing machine provided in the embodiments of this application;

[0025] Figure 2 This is a schematic diagram of the internal structure of the food processing machine provided in the embodiments of this application;

[0026] Figure 3 This is a cross-sectional view of the food processing machine provided in the embodiments of this application;

[0027] Figure 4 This is provided by the embodiments of this application. Figure 3 Enlarged view of point A in the middle;

[0028] Figure 5 This is a schematic diagram of the process of the fan control method of the food processing machine provided in the embodiment of this application entering the liquid drainage stage;

[0029] Figure 6 This is a schematic flowchart of the fan control method of the food processing machine according to an embodiment of this application during the cleaning process;

[0030] Figure 7 This is a schematic flowchart of the fan control method for a food processing machine provided in this application during the pulping process;

[0031] Figure 8 This is a schematic diagram of the process of ending the draining stage of the fan control method for a food processing machine provided in this application embodiment;

[0032] Figure 9This is a schematic flowchart of the cup detection process in the fan control method of the food processing machine provided in this application embodiment;

[0033] Figure 10 This is a flowchart illustrating the function keys of the fan control method for a food processor provided in this application embodiment;

[0034] Figure 11 This is a schematic diagram of the control circuit of the fan control method for a food processing machine provided in the embodiments of this application;

[0035] Figure 12 This is a circuit diagram of the control circuit of the fan control method for a food processor provided in the embodiments of this application;

[0036] Figure 13 This is a schematic diagram of the fan bracket of the food processing machine provided in the embodiments of this application;

[0037] Figure 14 This is a schematic diagram of the internal structure of a food processing machine provided in another embodiment of this application;

[0038] Figure 15 This is a cross-sectional view of a food processing machine provided in another embodiment of this application;

[0039] Figure 16 This is an exploded view of the motor bracket and fan provided in an embodiment of this application;

[0040] Figure 17 This is a schematic diagram of the structure of the fan bracket connecting the motor bracket of the food processing machine provided in the embodiments of this application.

[0041] Reference numerals: Main unit 1; Stirring chamber 11; Panel assembly 2; Drain outlet 3; Liquid receiving cup assembly 4; Residual water box 41; Slurry receiving cup 42; Base assembly 5; Motor bracket 51; Fan 6; Sponge 61; Fan bracket 62; Alignment groove 63; Fixing column 64; Air outlet 65; Drain pipe 7; Base assembly 8; Air inlet 81; Motor base 9; Cup body 10. Detailed Implementation

[0042] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0043] The purpose of this invention is to provide a fan control method for a food processing machine.

[0044] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0045] Figure 1 This is a schematic diagram of the structure of a food processing machine provided in an embodiment of this application. The food processing machine has a main unit 1 and a panel assembly 2, a drain port 3, and a liquid receiving cup assembly 4 disposed on the main unit 1.

[0046] Theoretically, panel assembly 2 can be located anywhere on the natural flow path of the steam flowing out of drain port 3.

[0047] In one embodiment, the panel assembly 2 is vertically disposed above the drain port 3 and the receiving cup assembly 4, and the panel assembly 2 extends vertically.

[0048] Figure 2 This is a schematic diagram of the internal structure of the food processing machine provided in the embodiments of this application. Figure 3 This is a cross-sectional view of the food processing machine provided in the embodiments of this application. Figure 4 This is provided by the embodiments of this application. Figure 3 Enlarged schematic diagram at point A. In one embodiment, the liquid receiving cup assembly 4 includes a residual water box 41 and a slurry receiving cup 42.

[0049] The food processing machine includes a base assembly 5, a fan 6, a base assembly 5 and a motor base 9. The base assembly 5 is located at the bottom of the main unit 1, and an air inlet 81 is provided on the base assembly 5. The motor base 9 is located on the base assembly 5.

[0050] The fan 6 is located inside the main unit 1 and is mounted on the motor base 9. It is connected to the air inlet 81. The main unit 1 is also provided with an air outlet channel (not shown in the figure) connected to the fan 6, which is the air outlet channel connected to the air inlet 81. The end of the air outlet channel is provided with an air outlet 65. The air outlet 65 is exposed outside the housing of the main unit 1 and is set towards the cup opening of the liquid receiving cup assembly 4, which can ensure that the air blown out by the fan 6 can reach the drain port 3 and the cup opening of the liquid receiving cup assembly 4.

[0051] Specifically, the fan 6 draws in outside air from the air inlet 81, makes it flow along the air outlet channel, and blows air through the air outlet 65. By changing the flow path of steam at the mouth of the drain port 3 and the liquid receiving cup assembly 4, the steam flowing from the drain port 3 and the liquid receiving cup assembly 4 to the panel assembly 2 is blown away, thus preventing the panel assembly 2 from being adhered to by steam.

[0052] The food processing machine also includes a drain pipe 7, which is located inside the main unit 1. The outlet of the drain pipe 7 is connected to the drain port 3 for supplying liquid outflow. A drain valve (not shown in the figure) is installed inside the main unit 1. The drain valve is connected to the drain pipe 7 and the control system inside the food processing machine. The control system (not shown in the figure) controls the drain valve to drive the drain pipe 7 to rotate between the residual water box 41 and the receiving cup 42. At the same time, the drain valve core is opened to realize the drain function.

[0053] The food processing machine also includes a cup body 10. The main unit 1 is provided with a stirring chamber 11. The cup body 10 is detachably installed in the stirring chamber 11. A cup body detection module (not shown in the figure) is provided in the stirring chamber 11 or on the cup body 10. The cup body detection module is used to detect whether the cup body 10 has been replaced and transmits the detection result to the control system.

[0054] The food processing machine is also equipped with a temperature measuring device (not shown in the figure). The temperature measuring device is located in the drain valve, drain pipe 7, liquid receiving cup assembly 4 or on the cup wall of liquid receiving cup assembly 4. It is used to measure the temperature of the liquid in liquid receiving cup assembly 4 and transmit the temperature signal to the control system in the food processing machine. The control system makes a judgment based on the received temperature signal to control the fan 6 to start or stop working.

[0055] The fan control methods for the aforementioned food processing machines include:

[0056] Based on the relationship between the temperature of the liquid at drain port 3 and the preset temperature, the fan 6 is controlled to start for a preset time and then stop working.

[0057] By setting the above-mentioned fan control method, this application can blow away the steam generated by the liquid flowing out of the drain port 3 and into the liquid receiving cup assembly 4 according to the temperature of the liquid. On the one hand, it can prevent the panel assembly from being affected by steam adhesion, which affects the touch experience and causes the touch response time to be longer. On the other hand, it can prevent the panel assembly surface from becoming blurry and reducing the user experience.

[0058] Figure 5 This is a schematic flowchart illustrating the process of the fan control method for a food processing machine, as provided in this embodiment, entering the draining stage. Figure 5 As shown, in one embodiment, the fan control method includes:

[0059] Step S210: When the food processing machine enters the draining stage, the temperature of the liquid flowing out of the drain outlet is detected.

[0060] In one embodiment, when the food processor enters the draining stage, the temperature of the liquid inside the cup 10 is detected. An NTC is installed at the bottom of the cup 10 to detect the temperature of the liquid inside the cup 10 through direct contact. Since the liquid flows from the bottom of the cup 10 to the drain valve in a relatively short time and distance, the temperature of the liquid is basically the same for a very short time. Therefore, detecting the temperature of the liquid inside the cup 10 is equivalent to detecting the temperature of the liquid flowing out of the drain port 3.

[0061] In another embodiment, a temperature measuring device is installed on the drain valve or drain pipe 7 to detect the real-time temperature of the liquid flowing out of the drain valve or drain pipe 7.

[0062] Step S220: Determine whether the temperature of the liquid is greater than the preset temperature.

[0063] Step S230: Based on the judgment result, control the fan 6 to turn on for a preset time to remove the steam flowing towards the panel assembly 2.

[0064] The preset time includes a first preset time and a second preset time.

[0065] In one embodiment, step S230 includes sub-steps S231 to S232.

[0066] Sub-step S231: When the temperature of the liquid is greater than the preset temperature, control the fan 6 to start for a first preset time and then stop working.

[0067] Sub-step S232: When the temperature of the liquid is less than or equal to the preset temperature, control the fan 6 to start for a second preset time and then stop working.

[0068] The first preset time is longer than the second preset time.

[0069] This application, by setting the aforementioned fan control method, can accurately determine whether steam is generated by judging the temperature of the liquid, and then operate the fan to blow air or stop working. It can promptly blow away steam when it is generated, prevent steam from flowing to the panel components, and improve the stability of the food processing machine's operation.

[0070] Figure 6 This is a schematic flowchart of the fan control method of the food processing machine according to an embodiment of this application during the cleaning process.

[0071] like Figure 6 As shown, in one embodiment, the liquid includes wastewater, the first preset time is 1 hour, the second preset time is 10 minutes, the preset temperature is 40 degrees, and the temperature of the liquid is the same as the temperature of the wastewater.

[0072] During the cleaning process of the food processing machine, the control system determines whether the drain valve has rotated to the position of the residual water box 41. When the detection device (not shown in the figure) detects that the drain valve has rotated to the position of the residual water box 41, the valve core of the drain valve is opened, and the wastewater generated during the cleaning process of the food processing machine is discharged from the drain port 3. This marks the start of the draining stage of the cleaning process. The temperature of the wastewater is detected by the temperature measuring device and transmitted to the control system.

[0073] The control system determines whether the wastewater temperature is greater than 40 degrees. When the wastewater temperature is greater than or equal to 40 degrees, the control fan 6 is turned on for a first preset time and then stopped, that is, it is turned on for 1 hour and then stopped. When the wastewater temperature is less than or equal to 40 degrees, the control fan 6 is turned on for a second preset time and then stopped, that is, it is turned on for 10 minutes and then stopped.

[0074] During the cleaning process described above, after the wastewater is discharged by turning the drain valve, when the temperature of the wastewater is higher than the preset temperature, the fan 6 is controlled to quickly blow away the steam generated by the wastewater in the drain port 3 and the residual water box 41 to prevent the steam from flowing to the position of the panel assembly 2.

[0075] Figure 7 This is a schematic flowchart of the fan control method for a food processing machine provided in this application during the pulping process.

[0076] like Figure 7 As shown, in another embodiment, the liquid includes a slurry, the first preset time is 1 hour, the second preset time is 10 minutes, the preset temperature is 40 degrees, and the temperature of the liquid is the same as the temperature of the slurry.

[0077] During the pulping process of the food processing machine, it is determined whether the drain valve has rotated to the receiving cup 42 position. When the detection device detects that the drain valve has rotated to the receiving cup 42 position, the drain valve rotates the valve core and discharges the pulp, entering the draining stage of the pulping process. The temperature of the pulp is detected by the temperature measuring device and transmitted to the control system. The control system determines the temperature of the pulp discharged from the drain port 3. When the temperature of the pulp is greater than 40 degrees, the control fan 6 is turned on continuously for 1 hour and then stopped. When the temperature of the pulp is less than or equal to 40 degrees, the control fan 6 is turned on continuously for 10 minutes and then stopped.

[0078] During the above process, after the control system's drain valve rotates to the slurry receiving cup position, when the temperature of the slurry is detected to be higher than the preset temperature, the control fan 6 is turned on.

[0079] After the slurry is discharged by turning the drain valve, the steam generated by the slurry in the drain port 3 and the slurry cup 42 can be quickly blown away by the fan 6 to prevent the steam from flowing to the surface of the panel assembly 2.

[0080] Figure 8This is a schematic diagram of the process at the end of the liquid drainage stage of the fan control method for the food processing machine provided in this application embodiment.

[0081] like Figure 8 As shown, step S410: After the drainage stage is completed, check whether the liquid receiving cup assembly 4 is in the preset position.

[0082] In step S410 above, after the drainage stage is completed, the fan continues to operate.

[0083] In one embodiment, the detection of whether the liquid receiving cup assembly 4 is in a preset position is specifically provided with a magnetic suction component on the liquid receiving cup assembly 4. The magnetic suction component is located at the bottom or side of the liquid receiving cup assembly 4. A detection circuit is provided in the host 1. When the liquid receiving cup assembly 4 is placed in the preset position, the detection circuit detects the approach of the magnetic suction component, sends a detection signal to the control system, determines that the liquid receiving cup assembly 4 is in the preset position, and the control system controls the discharge of liquid from the drain pipe 7.

[0084] The preset position is below the drain outlet 3.

[0085] In one embodiment, when the drain valve is rotated to the position of the residual water box 41, that is, when the drain pipe 7 is rotated to the position of the residual water box 41, the preset position is directly below or offset below the drain port 3.

[0086] Step S420: Depending on whether the liquid receiving cup assembly 4 is in the preset position, control the fan 6 to stop working or continue to work.

[0087] After the liquid draining stage of the food processing machine is completed, the fan continues to operate due to the aforementioned steps. By detecting whether the liquid receiving cup assembly is in a preset position at this time, the fan can be controlled to operate or turn on. This allows the fan to blow away the steam generated by the remaining liquid in the liquid receiving cup assembly when the drain outlet is not draining, the liquid receiving cup assembly is still in the preset position, and there is residual liquid in the liquid receiving cup assembly. This further prevents the steam from flowing to the panel assembly, improves the accuracy of the fan control method of this application, and further enhances the user experience.

[0088] In one embodiment, step S420 includes sub-steps S421 to S426.

[0089] Sub-step S421: If the liquid receiving cup assembly 4 is detected to be in a preset position, control the fan to continue operating.

[0090] Sub-step S422: If the liquid receiving cup assembly 4 is detected to be not in the preset position, control the fan 6 to stop working.

[0091] In this embodiment, since the slurry will only be discharged when the liquid receiving cup assembly 4 is in place, the control system controls the fan 6 to start working. Therefore, when the liquid receiving cup assembly 4 is not in the preset position, the control system controls the fan 6 to stop working.

[0092] Sub-step S423: If it is detected again that the liquid receiving cup assembly 4 has not been returned to the preset position within the set time, control the fan to continue to stop working.

[0093] Sub-step S424: If the liquid receiving cup assembly 4 is detected to be returned to the preset position within a set time, the fan 6 is controlled to start or continue to stop working, depending on whether there is any remaining liquid in the liquid receiving cup assembly 4.

[0094] In one embodiment, a liquid monitoring device (not shown in the figure) is installed in the food processing machine to determine whether there is residual slurry in the liquid receiving cup assembly 4. The liquid monitoring device is installed in the liquid receiving cup assembly 4 to detect whether there is residual slurry in the liquid receiving cup assembly 4 and transmit the detection result to the control system. The liquid monitoring device includes liquid level detection, monitoring through a weighing module, etc.

[0095] In another embodiment, a timing device is provided in the food processing machine to detect the time it takes for the liquid receiving cup assembly 4 to be returned to a preset position. When the liquid receiving cup assembly 4 is returned within a third preset time, it is determined that there is residual liquid in the liquid receiving cup assembly 4. When the liquid receiving cup assembly 4 is returned after the third preset time, it is determined that there is no residual liquid in the liquid receiving cup assembly 4, that is, it has been emptied.

[0096] The third preset time is less than the set time. The third preset time can be five minutes, and the specific setting can be determined according to the actual situation. There is no specific limitation on this setting.

[0097] Sub-step S425: If there is residual slurry in the receiving cup assembly 4, control the fan 6 to start working.

[0098] Sub-step S426: If there is no remaining slurry in the receiving cup assembly 4, control the fan 6 to continue to stop working.

[0099] In one embodiment, the liquid receiving cup assembly 4 is a slurry receiving cup 42. After the liquid discharge stage of the pulping process is completed, the fan 6 has been turned on. If it is detected that the slurry receiving cup 42 is not in the preset position, that is, the slurry receiving cup 42 has been removed, the source of steam generation is cut off. At this time, the control system controls the fan 6 to stop working, that is, to stop blowing air. When the slurry receiving cup 42 is put back, if it is detected that there is still slurry in the slurry receiving cup 42, the fan 6 is controlled to start working. If there is no slurry in the slurry receiving cup 42, the fan 6 is controlled to continue to stop working.

[0100] In another embodiment, the draining stage is the residual water draining stage, and the liquid receiving cup assembly 4 is the residual water box 41. After the residual water draining stage is completed, the fan 6 is in the on state. If it is detected that the residual water box 41 is not in the preset position, the source of steam generation is cut off. At this time, the control system controls the fan 6 to stop working. When the residual water box 41 is detected to be in the preset position again, that is, when the residual water box 41 is put back, if it is detected that there is still residual water in the residual water box 41, the fan 6 is controlled to start working. If it is detected that there is no residual water in the residual water box 41, the fan 6 is controlled to continue to stop working.

[0101] Figure 9 This is a schematic flowchart of the cup detection process in the fan control method of the food processing machine provided in this application embodiment.

[0102] like Figure 9 As shown, the fan control method also includes:

[0103] Step S810: After the food processing machine finishes working, check whether the cup 10 is in the set position.

[0104] Step S820: Depending on whether the cup body 10 is in the set position, control the fan 6 to stop working or continue to work.

[0105] After the food processing machine finishes its work, fan 6 continues to operate due to the aforementioned steps.

[0106] Step S830: If the cup body 10 is in the set position, control the fan 6 to continue to turn on.

[0107] Step S840: If the cup body 10 is not in the set position, control the fan 6 to stop working.

[0108] In one embodiment, a magnet (not shown in the figure) is provided on the cup body 10, and a Hall element (not shown in the figure) corresponding to the magnet is provided in the stirring chamber 11. The Hall element is connected to the control system. When the cup body 10 is in a set position or leaves the set position, the magnet approaches or leaves the Hall element, the magnetic field in the Hall element changes, and a voltage signal is sent to the control system in real time. After receiving the voltage signal, the control system determines whether to control the fan 6 to turn on or off.

[0109] After the work is completed, since the fan 6 continues to work, in order to prevent the steam generated by the residual slurry in the cup body 10 and the drain pipe 7 from flowing out of the drain port 3, it is necessary to check whether the cup body 10 is in the set position. When the cup body 10 is not in the set position, the cup body 10 is disassembled and replaced by default. At this time, the fan 6 can be controlled to stop working. When the cup body is still in the set position, the fan 6 can be controlled to continue working, which can further reduce the problem of steam adhesion on the surface of the panel assembly 2.

[0110] Figure 10 This is a flowchart illustrating the function keys of the fan control method for a food processor provided in this application embodiment.

[0111] like Figure 10 As shown, several function buttons (not shown in the figure) are provided on the panel assembly 2 of the food processing machine. The control system has multiple functions. The function buttons are connected to the control system. Pressing the corresponding function button can switch to the corresponding function.

[0112] Fan control methods also include:

[0113] Step S910: After the food processing machine finishes working, check whether the function button has been pressed.

[0114] After the food processor finishes working, it determines whether the function button has been pressed, that is, whether the function of the food processor has been switched, to control the fan 6 to stop or continue working, so as to achieve different preset time control of the fan 6 under different function conditions, which can improve the timeliness of the fan 6 to blow away steam and further reduce the impact on the panel assembly 2.

[0115] Step S920: Control the fan 6 to stop or continue working depending on whether the function key is pressed.

[0116] Step S930: If the function button is not pressed, control the fan 6 to continue running.

[0117] Step S940: If the function key is pressed, control the fan 6 to stop working.

[0118] Figure 11 This is a schematic diagram of the control circuit of the fan control method for a food processor provided in this application embodiment. Figure 12 This is a circuit diagram of the control circuit for the fan control method of the food processing machine provided in the embodiments of this application.

[0119] like Figure 11 As shown in Figure 12, in one embodiment, the food processing machine further includes a control circuit, which includes a control system and a fan drive circuit.

[0120] The control system is the control system of the aforementioned food processing machine.

[0121] The fan drive circuit connects the control system and the fan 6. It is used to detect the current flowing into the fan 6 and send the detected current value to the control system. The control system is used to operate or alarm based on whether the current value detected by the fan drive circuit is within the preset current range.

[0122] Specifically, the control system operates when the detected current value is within the preset current range, and alarms when the detected current value is outside the preset range.

[0123] The control system of this application embodiment is equipped with a fan drive circuit to drive the fan 6 to start or stop working, and the fan drive circuit detects the current value of the fan 6 in real time and feeds it back to the control system. On the one hand, by detecting the current value of the fan 6 in real time, the working status of the control circuit is detected, which improves the stability of the control circuit operation. On the other hand, when the current value of the fan 6 is detected to be outside the preset range, it indicates that the fan 6 is operating abnormally. At this time, the control system can promptly issue an alarm and notify the user of the abnormal operation of the fan 6 so that maintenance can be carried out. This can avoid the problem that the steam will flow back onto the panel assembly 2 due to the fan 6 failure caused by long-term operation, which would affect the user experience.

[0124] The aforementioned fan drive circuit includes a coil CN213, a first resistor R273, a field-effect transistor Q209, a second resistor R271, and a third resistor R274.

[0125] The coil CN213 connects the fan 6 and the external power supply, and is used for wireless coupling with the coil inside the fan 6.

[0126] The first resistor R273 is located at the input terminal of the control circuit. One end of the first resistor R273 is connected to the output terminal of the control system. The gate of the field-effect transistor Q209 is connected to the other end of the first resistor R273. The drain of the field-effect transistor Q209 is connected to the coil CN213. The conduction or deactivation of the field-effect transistor Q209 drives the fan 6 to start or stop.

[0127] The second resistor R271 is connected between the source of the field-effect transistor Q209 and the ground signal, and is used to detect the current value flowing into the fan 6.

[0128] The third resistor R274 is located at the output terminal of the control circuit. One end of the third resistor R274 is connected between the second resistor R271 and the source of the field-effect transistor Q209, and the other end of the third resistor R274 is connected to the input terminal of the control system, transmitting the current value detected by the second resistor R271 to the control system.

[0129] The fan drive circuit also includes a fourth resistor R269, a fifth resistor R270, a sixth resistor R272, a freewheeling diode D327, and a capacitor C216.

[0130] The freewheeling diode D327 is connected in parallel across the two ends of the coil CN213 to protect other components in the control circuit from damage.

[0131] The fourth resistor R269 is connected in series between the first resistor R273 and the gate of the field-effect transistor Q209. One end of the fifth resistor R270 is connected between the fourth resistor R269 and the gate of the field-effect transistor Q209, and the other end of the fifth resistor R270 is connected between the second resistor R271 and the ground signal. The sixth resistor R272 is connected in series between the third resistor R274 and the source of the field-effect transistor Q209. One end of the capacitor C216 is connected between the sixth resistor R272 and the third resistor R274, and the other end of the capacitor C216 is connected between the second resistor R271 and the ground signal.

[0132] During the operation of the fan drive circuit, when the input terminal of the control circuit receives a high level output from the control system, the field-effect transistor Q209 is turned on, and the coil CN213 and the coil in the fan 6 generate a magnetic field to drive the fan 6 to rotate, that is, to drive the fan 6 to start working. During the operation of the fan 6, the second resistor R271 detects the current value in real time and transmits the current value to the control system through the output terminal of the control circuit.

[0133] When the input terminal of the control circuit receives a low level output from the control system, the field-effect transistor Q209 is turned off, causing fan 6 to stop working.

[0134] Figure 13 This is a schematic diagram of the fan bracket of the food processing machine provided in the embodiments of this application. Figure 14 This is a schematic diagram of the internal structure of a food processing machine according to another embodiment of this application. Figure 15 This is a cross-sectional view of a food processing machine provided in another embodiment of this application.

[0135] like Figure 13 As shown in Figure 15, the food processing machine includes a fan bracket 62, which is fixedly mounted on the motor bracket 51 to fix the fan 6. The fan 6 is connected to the air inlet 81 on the base assembly 5, and the fan bracket 62 is connected to the air outlet channel. The air outlet 65 is set on the fan bracket 62 and connected to the air inlet 81 on the base assembly 5. The outside air entering from the air inlet 81 is blown out from the air outlet 65 by the rotation of the fan 6. The air outlet 65 is set corresponding to the drain port 3 and is located on the side wall of the main unit 1 and at an angle below the drain port 3 to blow the liquid discharged from the drain pipe 7.

[0136] Compared to the downward airflow method in the prior art, the fan blowing method of this application can not only disperse the steam accumulated at the bottom of the panel assembly, but also change the direction of steam flow, causing the steam to flow in a direction inclined towards the surface of the panel assembly, which can further reduce the problem of steam adhering to the panel assembly.

[0137] Figure 16This is an exploded view of the motor bracket and fan provided in an embodiment of this application. Figure 17 This is a schematic diagram of the structure of the fan bracket connecting the motor bracket of the food processing machine provided in the embodiments of this application.

[0138] A motor (not shown in the figure) is installed inside the food processing machine and mounted on the motor bracket 51. The motor is connected to the fan 6 and is used to provide mechanical energy to the fan 6.

[0139] The fan bracket 62 is fixed to the motor bracket 51 by fasteners or other means. Specifically, the motor bracket 51 is provided with an alignment groove 63 and a fixing post 64. The fan 6 is engaged with the fixing post 64, and the fan bracket 62 is engaged with the alignment groove 63. They are then fastened together by fasteners. In order to protect and stabilize the connection between the fan 6 and the motor bracket 51, a sponge 61 is provided between the fan 6 and the fixing post 64. A sponge 61 is also provided between the motor bracket 51 and the fan bracket 62. This can also reduce the friction between the fan 6, the fan bracket 62 and the motor, reduce the generation of noise and avoid collisions, thus protecting the components.

[0140] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0141] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0142] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A fan control method for a food processing machine, the food processing machine having a panel assembly, a drain outlet, and a liquid receiving cup assembly, characterized in that, The food processing machine further includes: a fan and an air outlet channel communicating with the fan, both disposed within the food processing machine; the air outlet channel has an air outlet at its end, the air outlet facing the opening of the liquid receiving cup assembly; the fan blows air through the air outlet to the drain port and the opening of the liquid receiving cup assembly, thereby changing the flow path of steam flowing from the drain port and the opening of the liquid receiving cup assembly, and blowing away the steam flowing towards the panel assembly; the fan control method includes: Based on the relationship between the temperature of the liquid flowing out of the drain port and the preset temperature, the fan is controlled to stop working after a preset time.

2. The fan control method for a food processing machine according to claim 1, characterized in that, The step of controlling the fan to stop working after a preset time based on the relationship between the temperature of the liquid at the drain outlet and a preset temperature includes: When the food processing machine enters the liquid discharge stage, the temperature of the liquid flowing out of the discharge port is detected; Determine whether the temperature of the liquid is greater than the preset temperature; Based on the judgment result, the fan is controlled to turn on for a preset time to remove the steam flowing towards the panel assembly.

3. The fan control method for a food processing machine according to claim 2, characterized in that, The preset time includes a first preset time and a second preset time, and the fan control method includes: When the temperature of the liquid is greater than the preset temperature, the fan is controlled to stop working after a first preset time. When the temperature of the liquid is less than or equal to the preset temperature, the fan is controlled to start for a second preset time and then stop working. Wherein, the first preset time is greater than the second preset time.

4. The fan control method for a food processing machine according to claim 2, characterized in that, The fan control method includes: After the drainage stage is completed, check whether the liquid receiving cup assembly is in a preset position; Controlling the fan to stop working or continue working based on whether the liquid receiving cup assembly is in a preset position includes: If the liquid receiving cup assembly is detected to be in the preset position, the fan is controlled to continue to be turned on; If the liquid receiving cup assembly is detected to be not in the preset position, the fan is controlled to stop working. The preset position is below the drain port.

5. The fan control method for a food processing machine according to claim 4, characterized in that, If the liquid receiving cup assembly is detected to be not in the preset position, and the fan is controlled to stop working, the method further includes: If the liquid receiving cup assembly is detected again as not being returned to the preset position within a set time, the fan will be controlled to continue to stop working. If the liquid receiving cup assembly is detected to have been returned to the preset position within a set time, the fan will be controlled to either start or continue to stop working, depending on whether there is any remaining liquid in the liquid receiving cup assembly.

6. The fan control method for a food processing machine according to claim 5, characterized in that, The step of controlling the fan to turn on or stop working based on whether there is residual slurry in the receiving cup assembly includes: If there is residual slurry in the liquid receiving cup assembly, control the fan to turn on; If there is no remaining slurry in the receiving cup assembly, the fan will continue to stop working.

7. The fan control method for a food processing machine according to claim 1, characterized in that, The food processing machine also includes a main unit, a cup body detachably mounted on the main unit, and function buttons disposed on the panel assembly. The fan control method further includes: After the food processing machine finishes working, check whether the cup is in the set position or whether the function button has been pressed. Depending on whether the cup is in the set position or whether the function button is pressed, the fan can be controlled to stop working or continue to work.

8. The fan control method for a food processing machine according to claim 1, characterized in that, The food processing machine further includes a control circuit, which comprises: Control system; A fan drive circuit, connected to the control system and the fan, is used to detect the current flowing into the fan and send the detected current value to the control system. The control system is used to operate or issue an alarm based on whether the detected current value is within a preset current range.

9. The fan control method for a food processing machine according to claim 8, characterized in that, The control system operates when the detected current value is within the preset current range; The control system will issue an alarm if the detected current value is outside the preset current range.

10. The fan control method for a food processing machine according to claim 8, characterized in that, The fan drive circuit includes: A coil, connecting the fan and an external power supply, is used for wireless coupling with the coil inside the fan; The first resistor has one end connected to the output terminal of the control system; A field-effect transistor, the gate of which is connected to the other end of the first resistor, and the drain of which is connected to the coil; The second resistor is connected between the source of the field-effect transistor and the ground signal, and is used to detect the current value flowing into the fan; The third resistor has one end connected between the second resistor and the source of the field-effect transistor, and the other end connected to the input terminal of the control system.

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