A food processor

Abstract

The food processor provided by the present disclosure relates to the technical field of food processing and comprises a processing cup assembly for containing food to be processed, a base, a driving module and a motor, a coupler and a switch module. The processing cup assembly comprises a cup body, a cup cover combined with the cup body, a crushing knife arranged inside the cup body and a heating load. The base is located below the processing cup assembly and is connected with the processing cup assembly. The coupler comprises a motor zero line pin and a heating zero line pin. The motor zero line pin is electrically connected with a motor driving zero line in the processing cup assembly, and the heating zero line pin is electrically connected with a heating driving zero line in the processing cup assembly. The heating driving zero line and the motor driving zero line in the processing cup assembly are respectively connected with the heating load. The switch module is connected in series between the heating driving zero line and the motor driving zero line in the processing cup assembly. The switch module is configured to be turned off when the cup cover is opened and turned on when the cup cover is closed. In this way, the opening safety of the split-type food processor product is improved.

Description

Technical Field

[0001] This disclosure relates to the field of food processing technology, and in particular to a food processor. Background Technology

[0002] As people's living standards continue to improve, the functions of food processors are becoming increasingly diverse. To ensure safe use, food processors usually need to have a lid protection function, meaning that the main unit of the food processor can only work when the lid assembly is closed.

[0003] Currently, one method to stop the motor of a food processor when the lid is opened is to trigger a microswitch in the main unit at the bottom via a linkage structure, thereby disconnecting the power supply to the main unit's circuit board and stopping the motor. However, this solution is greatly affected by the structure; when the cup body is small, a linkage structure cannot be designed. Furthermore, using a linkage-based method to cut off power when the lid is opened is prone to issues such as microswitch travel errors, linkage length errors, assembly errors, and / or cup size errors, resulting in inconsistent microswitch travel and potentially causing the main unit to either not receive power or not receive power at all, posing a certain safety hazard.

[0004] Another method to stop the motor is as follows: when the lid is opened, a microswitch at the handle is triggered. The opening signal from the microswitch is transmitted to the main circuit board via a coupler. Upon receiving the opening signal, the circuit board shuts down the motor, thus stopping it. This solution uses a low-voltage signal to stop the motor. However, if the low-voltage signal fails or the motor drive module malfunctions, the motor can still operate normally after the lid is opened, posing a safety hazard. If both the motor and the heating element require a neutral wire to be transmitted via the coupler, or if additional signal pins are needed to transmit this low-voltage signal, the coupler may require more pins, increasing its size.

[0005] Another method for achieving shutdown can be found in CN 212755393 U, which is applicable to blenders where the cup assembly and main unit are integrated. This method uses a lid power switch S1, located between the live wire L of the power supply and the common terminal COM_L of the blender load (such as the motor M and heating element 121). When the lid is opened, the power switch S1 directly disconnects the load from the live wire L, and the load immediately stops working. Since only the load is disconnected, the main unit control board (200) still has power, so the controller (320) can still detect the lid's opening and closing status and continue working without power-off memory. However, this solution requires the blender's cup assembly to be integrated with the main unit, thus eliminating the coupler and making it suitable for integrated platforms. However, this solution cannot be directly applied to blender products that require the main unit and cup to be separable and electrically connected via a coupler. Utility Model Content

[0006] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, this disclosure provides a food processor that can solve the problems of safety hazards of low-voltage control, large space of coupler, and space limitation of linkage structure in the prior art. It is also suitable for product platforms with coupler separation design to achieve reliable hardware safety power-off and compact design of coupler.

[0007] Specifically, this disclosure provides a food processor, comprising: A processing cup assembly for holding food to be processed, the processing cup assembly includes a cup body, a cup lid that fits onto the cup body, a shredder disposed inside the cup body, and a heating load; The base is located below the processing cup assembly and is connected to the processing cup assembly; The drive module is used to drive the motor to work, and the motor is used to drive the crushing blade to rotate. A coupler includes a male terminal disposed on the processing cup assembly and a female terminal disposed on the machine base. The male terminal includes multiple coupling pins, and the female terminal includes multiple coupling terminals that mate with the coupling pins. The coupling pins include a motor neutral wire pin and a heating neutral wire pin. The motor neutral wire pin is electrically connected to the motor drive neutral wire in the processing cup assembly, and the heating neutral wire pin is electrically connected to the heating drive neutral wire in the processing cup assembly. The heating drive neutral wire and the motor drive neutral wire in the processing cup assembly are respectively connected to the heating load. The coupling terminals include a motor neutral wire coupling terminal and a heating neutral wire coupling terminal. One end of the motor neutral wire coupling terminal is electrically connected to the motor neutral wire pin, and the other end is connected to the motor neutral wire terminal of the drive module or to the neutral wire terminal of the motor. One end of the heating neutral wire coupling terminal is electrically connected to the heating neutral wire pin, and the other end is connected to the heating neutral wire terminal of the drive module. A switch module is connected in series between the heating drive neutral wire and the motor drive neutral wire in the processing cup assembly; the switch module is configured to disconnect when the cup lid is opened and connect when the cup lid is closed.

[0008] Optionally, the male terminal of the coupler also includes a heating wire pin, which is connected to the heating drive wire in the processing cup assembly. The heating drive wire and the heating drive neutral wire in the processing cup assembly are respectively connected to the two ends of the heating load. The coupling terminal includes a heating wire coupling terminal, one end of which is electrically connected to the heating wire pin, and the other end is connected to the heating wire end of the drive module.

[0009] Optionally, the processing cup assembly also includes an NTC for detecting the temperature of the material inside the cup. The male terminal of the coupler includes an NTC pin and a ground pin. One end of the NTC is electrically connected to the NTC pin, and the other end is electrically connected to the ground pin. The coupling terminal includes an NTC coupling terminal and a ground coupling terminal. One end of the NTC coupling terminal is electrically connected to the NTC pin, and the other end is electrically connected to the NTC terminal of the drive module. One end of the ground coupling terminal is electrically connected to the ground pin, and the other end is electrically connected to the ground terminal of the drive module.

[0010] Optionally, the motor is a series motor, and the series motor and the drive module are located inside the frame. The neutral wire terminal of the series motor is electrically connected to the motor neutral wire coupling terminal in the coupling terminal, and the live wire terminal of the series motor is electrically connected to the live wire terminal of the drive module.

[0011] Optionally, the male terminal of the coupler includes 6 coupling pins, and the female terminal of the coupler includes 6 coupling terminals; the male terminal of the coupler also includes a protective grounding pin, the heating load includes a heating element, and the protective grounding pin is electrically connected to the heating element; the coupling terminals include a protective grounding coupling terminal, one end of which is electrically connected to the protective grounding pin, and the other end is electrically connected to the protective grounding terminal of the drive module, and the protective grounding terminal of the drive module is grounded.

[0012] Optionally, the motor is a variable frequency motor, and the drive module includes a control board and a power board connected to the control board. The variable frequency motor and the drive module are located inside the frame. The variable frequency motor includes a U-phase terminal, a V-phase terminal and a W-phase terminal. The U-phase terminal, V-phase terminal and W-phase terminal of the variable frequency motor are electrically connected to the U-phase terminal, V-phase terminal and W-phase terminal of the power board, respectively. The grounding terminal of the variable frequency motor is electrically connected to the grounding coupling terminal in the female terminal of the coupler.

[0013] Optionally, the male end of the coupler includes 7 coupling pins, and the female end of the coupler includes 7 coupling terminals; the motor neutral coupling terminal, the heating neutral coupling terminal, and the heating live coupling terminal in the female end of the coupler are electrically connected to the terminals in the power board; the cup assembly also includes a DS switch, and the male end of the coupler also includes an anti-overflow pin and a lid-close detection pin, the anti-overflow pin is connected to one terminal of the DS switch, and the lid-close detection pin is connected to the other terminal of the DS switch; The female end of the coupler also includes an anti-overflow coupling terminal and a cover-close detection coupling terminal. One end of the anti-overflow coupling terminal is electrically connected to the anti-overflow pin, and the other end is electrically connected to the anti-overflow terminal of the control board. One end of the cover-close detection coupling terminal is electrically connected to the cover-close detection pin, and the other end is electrically connected to the cover-close detection terminal of the control board.

[0014] Optionally, the motor is a variable frequency motor, the drive module is located inside the machine base, and the variable frequency motor is located inside the processing cup assembly; the drive module includes a control board and a power board connected to the control board; the male end of the coupler includes 8 coupling pins, and the female end of the coupler includes 8 coupling terminals; the male end of the coupler also includes a U-phase pin, a V-phase pin, and a W-phase pin, and the U-phase, V-phase, and W-phase terminals of the variable frequency motor are electrically connected to the U-phase pin, V-phase pin, and W-phase pin of the male end of the coupler, respectively; the female end of the coupler includes a U-phase coupling terminal, a V-phase coupling terminal, and a W-phase coupling terminal, one end of the U-phase coupling terminal is electrically connected to the U-phase pin, and the other end is electrically connected to the U-phase terminal of the power board; one end of the V-phase coupling terminal is electrically connected to the V-phase pin, and the other end is electrically connected to the V-phase terminal of the power board; one end of the W-phase coupling terminal is electrically connected to the W-phase pin, and the other end is electrically connected to the W-phase terminal of the power board.

[0015] Optionally, the heating neutral wire coupling terminal, the heating live wire coupling terminal, and the motor neutral wire coupling terminal in the coupling terminals are respectively connected to the wiring terminals in the power supply board, and the NTC coupling terminal and the ground coupling terminal are respectively connected to the wiring terminals in the control board.

[0016] Optionally, the processing cup assembly includes a handle disposed on the outside of the cup body, and the switch module includes a micro switch disposed on the handle.

[0017] The technical solution provided in this disclosure has the following advantages compared with the prior art: 1. This utility model adopts a cup lid trigger switch module, which does not rely on a complex bottom linkage structure. It has high structural compatibility, is not limited by space, and solves the problem of designing a linkage structure for small cups. At the same time, since the switch only disconnects the load neutral wire, the control module inside the base remains powered, thus eliminating the need for power-off memory to detect status and resume operation.

[0018] 2. In this invention, when the food processor is opened, the switch module directly disconnects the motor drive neutral wire and the heating drive neutral wire, resulting in a physical disconnection of the high-voltage circuit. This completely eliminates the safety hazard of continuous operation when the lid is opened due to abnormal transmission of weak current signals, controller malfunction, or motor drive module failure. As long as the switch module is disconnected, the load circuit is physically cut off, ensuring extremely high safety.

[0019] 3. This utility model integrates a high-voltage control switch (switch module) inside a detachable processing cup assembly and transmits an independent neutral wire through a coupler. It successfully applies the "open lid to disconnect high voltage" safety mechanism to a food processor product where the main unit and cup are detachable (with a coupler), expanding the application scope of high-voltage safety control.

[0020] 4. This utility model connects the switch module in series between the motor drive neutral line and the heating drive neutral line. It uses a coupler path consisting of the motor neutral line pin and the heating neutral line pin to simultaneously supply power and provide safety control for the motor and the heating load. This reduces the space and number of pins of the coupler, thereby reducing structural complexity and manufacturing costs. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0022] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 The diagram shown is a structural schematic of a food processor provided in an embodiment of this disclosure; Figure 2 The diagram shown is another structural schematic of the food processor provided in this embodiment of the present disclosure; Figure 3 The diagram shown is another structural schematic of the food processor provided in this embodiment of the present disclosure. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features, and advantages of this disclosure, the solutions disclosed herein will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0025] Numerous specific details are set forth in the following description in order to provide a full understanding of this disclosure, but this disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some, and not all, of the embodiments of this disclosure.

[0026] Figure 1 The diagram shown is a structural schematic of a food processor provided in an embodiment of this disclosure. Please refer to it. Figure 1 This disclosure provides a food processor, comprising: A processing cup assembly 10 for holding food to be processed includes a cup body, a lid that fits onto the cup body, a shredder disposed inside the cup body, and a heating load 60. Optionally, the heating load 60 includes a heating element 61, a fuse 62, and a thermostat 63 connected in series.

[0027] The base 20 is located below the processing cup assembly 10 and is connected to the processing cup assembly 10.

[0028] The drive module 30 and the motor 40 are used to drive the motor 40 to work, and the motor 40 is used to drive the crushing blade to rotate.

[0029] The coupler includes a male terminal 51 disposed on the processing cup assembly 10 and a female terminal 52 disposed on the base 20. The male terminal 51 includes a plurality of coupling pins, and the female terminal 52 includes a plurality of coupling terminals that mate with the coupling pins. The coupling pins include a motor neutral pin M-2 and a heating neutral pin M-1. The motor neutral pin M-2 is electrically connected to the motor drive neutral line Moto N in the processing cup assembly 10, and the heating neutral pin M-1 is electrically connected to the heating drive neutral line Heat N in the processing cup assembly 10. The heating drive neutral line Heat N and the motor drive neutral line Moto N in the processing cup assembly 10 are connected to each other. N is connected to the heating load 60 respectively; the coupling terminals include the motor neutral line coupling terminal F-2 and the heating neutral line coupling terminal F-1. One end of the motor neutral line coupling terminal F-2 is electrically connected to the motor neutral line pin M-2, and the other end is connected to the motor neutral line terminal of the drive module 30 or to the neutral line terminal of the motor 40; one end of the heating neutral line coupling terminal F-1 is electrically connected to the heating neutral line pin M-1, and the other end is connected to the heating neutral line terminal of the drive module 30.

[0030] A switch module 70 is connected in series between the heating drive neutral wire Heat N and the motor drive neutral wire Moto N in the processing cup assembly 10; the switch module 70 is configured to disconnect when the cup lid is opened and to connect when the cup lid is closed.

[0031] It should be noted that the "cup lid" in this disclosure does not refer solely to a component that directly covers the opening of the cup, but rather to any component that can cover the opening of the cup and provide safety control when opening. This can manifest in two main forms: the first is direct covering, the most common form, where the lid directly covers the cup, completely sealing the opening. The second is indirect covering, such as in a food processor containing a main unit, where an outer lid is installed on the main unit, and an inner lid is installed above the cup inside the main unit. When the outer lid is closed over the inner lid, it also provides covering and protection. In this case, the outer lid is equivalent to the cup lid defined in this invention, and its opening and closing action can serve as a signal to trigger the safety protection circuit. It should also be noted that the protection circuit provided in this disclosure is not only applicable to traditional, simple products such as soy milk makers and blenders, but can also be flexibly applied to more complex food processors that include a main unit and multiple lids, thus improving its versatility.

[0032] In the food processor disclosed herein, the base 20 and the processing cup assembly 10 are connected by a coupler, meaning that the base 20 and the processing cup assembly 10 are separable structures. The coupler includes independent motor neutral wire pin M-2, motor neutral wire coupling terminal F-2, heating neutral wire pin M-1, and heating neutral wire coupling terminal F-1, providing independent power supply paths for the motor 40 and the heating load 60. The food processor of this disclosure includes a switch module 70, which is connected in series between the motor drive neutral wire Moto N and the heating drive neutral wire Heat N inside the processing cup assembly 10. When the lid is opened, the switch module 70 is triggered to disconnect. When the lid is closed, the switch module 70 is triggered to connect. In this disclosure, by utilizing the open / closed state of the lid, a high-voltage switch inside the cup body simultaneously physically disconnects the neutral wire high-voltage circuits of the motor and the heating load, achieving safety control.

[0033] The present invention effectively overcomes the various defects in the aforementioned background technology, achieving the technical effects of safety, strong structural compatibility, and no need for power-off memory. Specifically: Regarding the limitations of existing technologies using linkage structures (unsuitable for small cups, requiring power-off memory), this invention employs a cup lid-triggered switch module, which does not rely on a complex bottom linkage structure. It boasts high structural compatibility, is not limited by space, and solves the problem of designing linkage structures for small cups. Furthermore, since the switch module only disconnects the load neutral wire and does not disconnect the power supply to the control module, status detection and resumption of operation are possible without the need for power-off memory.

[0034] Regarding the safety issue of existing low-voltage switches (the motor continues to run when the signal fails or the drive module malfunctions), the food processor of this invention directly disconnects the motor drive neutral wire (Moto N) and the heating drive neutral wire (Heat N) when the lid is opened, thus physically disconnecting the high-voltage circuit. This completely solves the safety hazard of the machine not stopping when the lid is opened due to abnormal low-voltage signal transmission, controller failure, or drive module 30 malfunction. As long as the switch module 70 is disconnected, the heating load circuit is physically cut off, ensuring extremely high safety.

[0035] Regarding the issue that existing technologies using integrated high-voltage control are not suitable for detachable platforms, this invention integrates the high-voltage control switch (switch module 70) inside the detachable processing cup assembly 10, and transmits an independent neutral wire through a coupler. This successfully applies the "open lid disconnects high-voltage power" safety mechanism to a food processor product where the main unit and cup are detachable (with a coupler), expanding the application scope of high-voltage safety control.

[0036] Therefore, this invention, by connecting the switch module in series between the motor drive neutral wire and the heating drive neutral wire, enables the simultaneous safe control of the two core loads (motor 40 and heating load 60) within the blender using a single high-voltage switch, simplifying the electrical layout within the container. While retaining the coupler (detachable design), the invention achieves a physical disconnection of the load circuit by cutting off the load neutral wire within the container, simultaneously avoiding the power-off memory problem caused by cutting off the main power supply. This provides an efficient, safe, and convenient protection solution for detachable blender platforms.

[0037] Furthermore, this invention connects the switch module in series between the motor drive neutral line and the heating drive neutral line, using a coupler path consisting of the motor neutral line pin and the heating neutral line pin to simultaneously power and control the motor and heating load. This reduces the space and number of pins in the coupler, thereby lowering the structural complexity and manufacturing cost.

[0038] In one alternative embodiment of this disclosure, the processing cup assembly 10 includes a handle disposed on the outside of the cup body, and the switch module 70 includes a micro switch K disposed on the handle.

[0039] By placing the microswitch K on the handle, structural space limitations are overcome, avoiding the need for complex linkage structures at the bottom of the base to trigger the microswitch, as required in existing technologies. The handle is located on the outside of the cup body, unrestricted by the size or shape of the cup's interior space. This achieves high structural compatibility, making it suitable for blenders of various sizes and shapes, thus improving product versatility. Furthermore, the microswitch is a mature, reliable, and low-cost electromechanical component. Using a microswitch as the switching module ensures high mechanical reliability and controllable costs. It precisely controls the physical disconnection of the high-voltage circuit through mechanical travel, facilitating mass production and ensuring consistency in switch travel and triggering state during mass production. This avoids the problems of no or no power supply caused by tolerances in traditional linkage structures.

[0040] This embodiment uses a micro switch on the handle as the executor to physically cut off the high-voltage circuit, completely eliminating potential risks in low-voltage control and ensuring that the high-voltage connection of the load circuit is forcibly disconnected when the cover is opened.

[0041] Please continue to refer to this. Figure 1In one optional embodiment of this disclosure, the male terminal 51 of the coupler further includes a heating wire pin M-3, which is connected to the heating drive wire Heat L in the processing cup assembly 10. The heating drive wire Heat L and the heating drive neutral wire Heat N in the processing cup assembly 10 are respectively connected to the two ends of the heating load 60. The coupling terminal includes a heating wire coupling terminal F-3, one end of which is electrically connected to the heating wire pin M-3, and the other end is connected to the heating wire end of the drive module 30.

[0042] The complete circuit of the heating load 60 provided in this embodiment (with both the live and neutral wires connected via a coupler) facilitates production and fault diagnosis, and ensures that the heating load 60 can receive a clean and independent power supply directly from the base 20. This avoids potential sharing and interference between the live wire of the heating load 60 and other live wires (such as those of the motor 40) within the cup body, improving system stability and electrical isolation. Furthermore, the independent lead-out of the heating drive live wire in this disclosure also improves the reliability of power transmission. Specifically, when the heating load 60 has a high power (e.g., exceeding 1500W), transmitting a large current through independent pins on the coupler ensures more reliable contact resistance and temperature rise control, avoiding cross-interference with other lines. Therefore, it solves the problem of safe and stable transmission of high-power heating circuits via couplers in a split platform.

[0043] Furthermore, considering that the heating load 60 has independent live and neutral wires, the drive module 30 on the base 20 side can independently control the live and neutral wires for heating. For example, heating can be bipolar controlled (both live and neutral wires can be cut off) via a relay or thyristor on the heating live wire coupling terminal F-3, providing a higher level of heating safety than single neutral wire control and enhancing safety. Especially when certain safety standards have higher requirements, bipolar control is the preferred solution.

[0044] Please continue to refer to this. Figure 1 In one optional embodiment of this disclosure, the processing cup assembly 10 further includes an NTC (negative temperature coefficient thermistor) for detecting the temperature of the material inside the cup. The male terminal 51 of the coupler includes an NTC pin M-6 and a ground pin M-4. One end of the NTC is electrically connected to the NTC pin M-6, and the other end is electrically connected to the ground pin M-4. The coupling terminal includes an NTC coupling terminal F-6 and a ground coupling terminal F-4. One end of the NTC coupling terminal F-6 is electrically connected to the NTC pin M-6, and the other end is electrically connected to the NTC terminal of the drive module 30. One end of the ground coupling terminal F-4 is electrically connected to the ground pin M-4, and the other end is electrically connected to the ground terminal of the drive module 30.

[0045] In this embodiment, two additional pins / terminals (NTC pin M-6 and ground pin M-4, NTC coupling terminal F-6 and ground coupling terminal F-4) are used in the coupler to lead the NTC temperature sensor signal circuit inside the cup to the drive module 30 on the base 20 side. The drive module 30 on the base 20 side can obtain the accurate temperature of the material inside the cup in real time. It can automatically adjust the heating power or enter the heat preservation state according to the temperature, realizing complex fully automatic cooking programs. This is crucial for recipes that require precise heating and heat preservation (such as making soy milk, baby food, or yogurt), and helps to improve the intelligence of the product and the cooking accuracy.

[0046] In this embodiment, the NTC is connected via a coupler, suitable for split platforms. The NTC signal is transmitted through a dedicated coupling pin, ensuring signal stability and accuracy, and avoiding the problems of easily worn signal lines and poor contact in traditional solutions. This ensures that the critical temperature detection function can operate reliably during the cup separation and lid closing process. Furthermore, a grounding pin M-4 and a grounding coupling terminal F-4 are added to the coupler, providing a reliable grounding protection path for the cup assembly. This is crucial for blenders with heating loads and high-voltage drive lines. It ensures that in the event of leakage or short-circuit faults, current can be conducted to the ground through the grounding wire, effectively protecting user safety and meeting higher electrical safety standards.

[0047] Please continue to refer to this. Figure 1 In one optional embodiment of this disclosure, the motor 40 is a series motor. The series motor 40 and the drive module 30 are located inside the frame 20. The neutral wire of the series motor is electrically connected to the motor neutral wire coupling terminal F-2 in the coupling terminal through the motor drive neutral wire Moto N. The live wire of the series motor is electrically connected to the live wire of the drive module 30 through the motor drive live wire Moto L.

[0048] The food processor in this embodiment uses a series-wound motor, which features high speed and high torque, making it suitable for high-performance food processors and meeting the requirements for high-speed blending and cell wall breaking. The motor 40 and drive module 30 are located within the base 20, representing a design where the motor 40 is positioned at the bottom and the main unit is separated from the cup body. The live wire of the series-wound motor is electrically connected to the live wire of the drive module 30, and the live wire circuit is entirely connected within the base 20, unaffected by the coupler. The neutral wire of the series-wound motor is electrically connected to the motor neutral wire coupling terminal F-2. The neutral wire circuit of the motor 40 is connected to the switch module 70 inside the cup body via a coupler, enabling the neutral wire to be disconnected when the lid is opened. In practical applications, the drive module 30 outputs a signal via the heating drive neutral wire Heat L, which is connected to the micro switch K in the processing cup assembly via a coupler. The micro switch K is then connected to the motor drive neutral wire Moto N, and the motor drive neutral wire Moto N in the processing cup assembly is connected to the motor drive neutral wire Moto N in the base via a coupler. When the micro switch is open, the motor drive neutral wire Moto N is disconnected, and the motor cannot operate.

[0049] In the food processor provided in this embodiment, the neutral wire of the series motor is led out through a coupler. By disconnecting the neutral wire of the series motor inside the processing cup assembly, it is ensured that the high-voltage circuit of the motor is immediately physically cut off when the lid is opened at high speed. Even if the drive module 30 fails, the series motor cannot work because the motor drive neutral wire is physically disconnected, effectively solving the safety hazards caused by weak current signal control in the background art. In addition, the live wire of the series motor is connected to the drive module 30 inside the base 20. The series motor is usually controlled by the drive module 30, such as a thyristor or relay, to control the on / off state or phase angle (for speed regulation). Concentrating these drive and control components inside the base 20 simplifies the design and facilitates heat dissipation. The complex high-voltage speed regulation control is integrated on the base 20 side, while the cup body is only responsible for simple high-voltage switch disconnection. The division of labor is clear, reducing the complexity and cost of system design.

[0050] Please continue to refer to this. Figure 1 When a split platform with a series motor mounted below is used, in one optional embodiment of this disclosure, the male terminal 51 of the coupler includes 6 coupling pins, and the female terminal 52 of the coupler includes 6 coupling terminals; the male terminal 51 of the coupler also includes a protective grounding pin M-5, the heating load 60 includes a heating element 61, and the protective grounding pin M-5 is electrically connected to the heating element 61; the coupling terminals include a protective grounding coupling terminal F-5, one end of the protective grounding coupling terminal F-5 is electrically connected to the protective grounding pin M-5, and the other end is electrically connected to the protective grounding terminal of the drive module 30, and the protective grounding terminal of the drive module 30 is grounded.

[0051] In the food processor provided in this embodiment, for a split platform with a series-wound motor mounted below, the coupler may include only 6 pins / terminals. Specifically, the motor neutral pin M-2 connects to the motor drive neutral wire (Moto N), serving as a safety control path, carrying the operating current of the motor 40, and is controlled by the internal power switch. The heating neutral pin M-1 connects to the heating drive neutral wire (Heat N), serving as a safety control path, carrying the operating current of the heating load 60, and is controlled by the internal power switch. The heating live wire pin M-3 serves as a heating power supply path, connecting to the live wire terminal of the heating load 60, providing live power to the heating load 60. The NTC pin M-6 connects to the NTC sensor, serving as a material temperature detection path, used to transmit the internal temperature signal to the controller of the base 20. The protective grounding pin M-5 connects to the housing / metal part of the heating element 61, providing a safe grounding circuit for the heating element 61 as electrical safety protection. Grounding pin M-4 connects to the other end of the NTC sensor as a signal reference path, typically serving as the low-potential reference point for the NTC sensor. Grounding pin M-4 is connected to the grounding terminal of the drive module 30 via grounding coupling terminal F-4. In this embodiment, the coupler requires only 6 pins / terminals to meet the stringent requirements for safe power-off (neutral wire control) and safe grounding, efficiently covering core functions such as high-voltage power supply, temperature control signals, and safety control. This achieves a compact design in terms of coupler space and pin count, which helps to reduce coupler size and conserve product space.

[0052] In this embodiment, a protective grounding pin M-5 is added because the heating load 60 (e.g., heating element 61) is in direct contact with food and water, posing a high risk of leakage. By electrically connecting the metal casing / heating element 61 to the protective grounding pin M-5, in the event of insulation failure leading to leakage, the current will be rapidly conducted to the ground through the protective grounding loop. This meets the stringent international and domestic safety standards for electric shock protection required for household appliances with heating functions, greatly improving user safety.

[0053] This embodiment integrates all key functions, including safety control (motor drive neutral wire), high-power power supply (heating drive live / neutral wire), intelligent detection (NTC), and final safety protection (protective grounding), giving the separate, series-wound motor, heating food processor platform of this utility model a complete, clear, and reliable electrical interface solution.

[0054] The coupler interface design in this embodiment supports high-performance series motor drive systems, ensuring safe and reliable high-voltage cutoff during high-speed operation when the lid is opened. It not only achieves the core high-voltage safety cutoff upon lid opening (via a high-voltage switch connected in series with the motor-driven neutral wire), avoiding the shortcomings of low-voltage control and linkage structures, but also, by adding a heating drive live wire, an NTC signal line, and a crucial protective ground wire to the coupler, this bottom-mounted, detachable, heated food processor possesses comprehensive and high-standard electrical safety and intelligent control capabilities.

[0055] Figure 2 The diagram shown is a structural schematic of a food processor according to an embodiment of this disclosure. In this embodiment, the coupling pins include a motor neutral wire pin M-2, a heating neutral wire pin M-1, a heating live wire pin M-3, and a grounding pin M-4. The coupling terminals include a motor neutral wire coupling terminal F-2, a heating neutral wire coupling terminal F-1, a heating live wire coupling terminal F-3, and a grounding coupling terminal F-4. Please refer to... Figure 2 In one optional embodiment of this disclosure, the motor 40 is a variable frequency motor, the drive module 30 includes a control board and a power board connected to the control board, and the variable frequency motor 40 and the drive module 30 are located inside the base 20; the variable frequency motor 40 includes a U-phase terminal, a V-phase terminal and a W-phase terminal, and the U-phase terminal, V-phase terminal and W-phase terminal of the variable frequency motor 40 are electrically connected to the U-phase terminal, V-phase terminal and W-phase terminal of the power board respectively; the grounding terminal of the variable frequency motor 40 is electrically connected to the grounding coupling terminal F-4 in the female terminal 52 of the coupler.

[0056] Optionally, the variable frequency motor 40 mentioned in this embodiment can be, for example, a BLDC brushless DC motor or an FOC-controlled AC motor, providing higher efficiency and more precise speed and torque control. The drive module 30 includes a control board and a power board (such as containing a rectifier bridge, a three-phase inverter, and a filter circuit), responsible for converting mains power into the three-phase AC power (U, V, W) required for variable frequency drive. The U, V, and W terminals of the variable frequency motor 40 are directly connected to the U, V, and W terminals of the power board. The three-phase drive circuit is entirely completed within the chassis 20, maintaining the integrity of the variable frequency control. This avoids transmitting the high-frequency, high-voltage variable frequency output (U / V / W) through a coupler, greatly simplifying the coupler design and ensuring the signal purity and stability of the variable frequency drive. The grounding terminal of the variable frequency motor 40 is electrically connected to the grounding coupling terminal F-4 in the female terminal 52 of the coupler. By using a coupler to connect the protective ground of the variable frequency motor 40, the electrical safety of the motor 40 inside the frame 20 is ensured, thereby improving the overall electrical safety level of the complex variable frequency system.

[0057] In this embodiment, the motor neutral wire of the inverter power supply board is led to the processing cup assembly 10 via a coupler and connected in series with the switch module 70 inside the cup. When the cup lid is opened, the switch module 70 is triggered to disconnect, thereby physically cutting off the MOTO_N main neutral wire circuit of the inverter power supply board. Specifically, the power supply board outputs a signal for the heating drive neutral wire Heat N, which is connected to the switch module 70 in the processing cup assembly via a coupler. The switch module 70 is connected to the motor drive neutral wire Moto N, which is connected to the power supply board in the frame via a coupler. The power supply board then supplies power to the inverter motor through a rectifier bridge. When the microswitch is opened, the rectifier bridge input N line is disconnected, and the motor cannot run. Even if the software or hardware of the inverter control board or power supply board fails, physically cutting off the motor drive neutral wire Moto N will cause the main high-voltage circuit of the entire inverter drive system to be de-energized. This eliminates the potential safety hazard of the inverter motor not stopping due to the failure of weak current signals or control board failure in the background art.

[0058] This embodiment cleverly combines the high performance of the variable frequency motor 40 with the safety concept of physical disconnection of high voltage. By completing the complex U / V / W variable frequency drive within the base 20, and simultaneously leading the neutral wire of the core power supply (e.g., the motor drive neutral wire MOTO_N) to the cup body and controlling it with a mechanical high voltage switch, a high-performance, separable, power-off memory-free, and relatively safe electrical architecture for the food processor is successfully achieved.

[0059] Please continue to refer to this. Figure 2 In one optional embodiment of this disclosure, when the variable frequency motor 40 is positioned downwards, the male terminal 51 of the coupler includes 7 coupling pins, and the female terminal 52 of the coupler includes 7 coupling terminals; the motor neutral line coupling terminal F-2, the heating neutral line coupling terminal F-1, and the heating live line coupling terminal F-3 in the female terminal 52 of the coupler are electrically connected to the terminals in the power supply board, wherein the heating live line coupling terminal F-3 is connected to the rectifier bridge of the power supply board, and the heating neutral line coupling terminal F-1 is connected to the filter circuit in the power supply board. The cup body assembly also includes a DS switch. The male terminal 51 of the coupler also includes an anti-overflow pin M-7 and a lid-close detection pin M-8. The anti-overflow pin M-7 is connected to one terminal of the DS switch, and the lid-close detection pin M-8 is connected to the other terminal of the DS switch. The female terminal 52 of the coupler also includes an anti-overflow coupling terminal F-7 and a lid-close detection coupling terminal F-8. One end of the anti-overflow coupling terminal F-7 is electrically connected to the anti-overflow pin M-7, and the other end is electrically connected to the anti-overflow terminal of the control board. One end of the lid-close detection coupling terminal F-8 is electrically connected to the lid-close detection pin M-8, and the other end is electrically connected to the lid-close detection terminal of the control board.

[0060] This embodiment provides a complete electrical interface solution for the variable frequency motor 40 lower platform, integrating core high-voltage safety control, heating control, intelligent detection, and lid-closed status monitoring into a single 7-pin coupler. This achieves a high degree of integration of the complete electrical interface solution for the variable frequency motor lower platform, effectively reducing the overall size of the coupler and meeting the design requirements for a compact structure. Specifically, the motor neutral wire pin M-2 and motor neutral wire coupling terminal F-2 connect to the neutral wire of the variable frequency power board, serving as the core safety high-voltage circuit. This circuit is physically disconnected by the internal switch module 70 (lid high-voltage switch) when the lid is opened. The heating neutral wire pin M-1 and heating neutral wire coupling terminal F-2 connect to the heating load 60, serving as the heating safety high-voltage circuit. This circuit, along with the motor neutral wire, is physically disconnected by the internal switch module 70 when the lid is opened. The heating live wire pin M-3 and heating live wire coupling terminal F-3 connect to the live wire of the heating load 60, serving as the heating power supply circuit. The NTC pin M-6 and NTC coupling terminal F-6 connect to the NTC temperature sensor, providing material temperature detection and achieving precise temperature control. The grounding pin M-4 or grounding pin coupling terminal F-4 connects to the grounding terminal of the heating element housing / motor 40, providing reliable protection against electric shock. The anti-overflow pin M-7 connects to one end of the DS switch and cooperates with the lid-close detection pin M-8 to transmit the anti-overflow (water level) signal. The lid-close detection pin M-8 connects to the other end of the DS switch and cooperates with the anti-overflow pin M-7 to transmit the lid-close / anti-overflow status signal. The introduction of a 7-pin coupler allows for simultaneous implementation of high-voltage safety, high-power supply, high-precision temperature control (NTC), motor drive neutral wire (Moto N) disconnection, lid-close / anti-overflow detection, and protective grounding on a single detachable interface. Dedicated lines ensure no interference between circuits, providing a stable and reliable electrical architecture for complex functions.

[0061] When the cup lid is opened, a single high-voltage switch simultaneously cuts off the motor drive neutral wire and the heating drive neutral wire, forcing the variable frequency drive system and heating system to shut down. Utilizing the newly added DS switch and its pins (overflow prevention pin M-7 and lid closing detection pin M-8), the control board can receive low-voltage signals indicating lid opening / closing and whether material spillage is prevented, enabling refined management.

[0062] This embodiment introduces a variable frequency motor 40, achieving quiet, efficient, and wide-range speed regulation, meeting the requirements of high-end food processors. By physically cutting off the neutral wire circuit of the variable frequency drive system, the risk of continuous operation when the lid is opened due to control board or inverter failure is fundamentally eliminated. This also solves the safety defects of low-voltage signal control in the background technology.

[0063] This embodiment (with a 40-pin variable frequency motor at the bottom and a 7-pin coupler) combines the core safety innovation of physical disconnection of high voltage (connecting the switch module via the Motor Drive Neutral Line) with the high performance of variable frequency drive, the high precision temperature control of NTC, and the intelligent status detection function of DS switch, providing a full-featured, highly safe, and high-performance electrical control solution for detachable food processors.

[0064] Figure 3 The diagram shown is a structural schematic of a food processor provided in an embodiment of this disclosure. Please refer to it. Figure 3 In one optional embodiment of this disclosure, the motor 40 is a variable frequency motor, the drive module 30 is located within the base 20, and the variable frequency motor 40 is located within the processing cup assembly 10; the drive module 30 includes a control board and a power board connected to the control board; the male terminal 51 of the coupler includes 8 coupling pins, and the female terminal 52 of the coupler includes 8 coupling terminals; the male terminal 51 of the coupler also includes a U-phase pin MU, a V-phase pin MV, and a W-phase pin MW, and the U-phase terminal, V-phase terminal, and W-phase terminal of the variable frequency motor 40 are respectively... Do not connect the U-phase pin, V-phase pin, and W-phase pin of the male terminal 51 of the coupler; the female terminal 52 of the coupler includes a U-phase coupling terminal FU, a V-phase coupling terminal FV, and a W-phase coupling terminal FW. One end of the U-phase coupling terminal is electrically connected to the U-phase pin, and the other end is electrically connected to the U-phase terminal of the power board; one end of the V-phase coupling terminal is electrically connected to the V-phase pin, and the other end is electrically connected to the V-phase terminal of the power board; one end of the W-phase coupling terminal is electrically connected to the W-phase pin, and the other end is electrically connected to the W-phase terminal of the power board.

[0065] In this embodiment, the variable frequency motor 40 itself is moved from the base 20 to inside the processing cup assembly 10 (motor 40 is mounted on top), while the drive module 30 (power board and control board) remains inside the base 20. This means that the high-voltage, high-frequency variable frequency drive current (U, V, W three phases) must be transmitted through a coupler. This embodiment successfully transmits all necessary signals and power supplies, including the variable frequency drive three-phase power, the heating live wire, the neutral wire with integrated safety power-off function, the temperature detection signal, and the protective ground wire, within a space of only 8 pins, ensuring the complete operation and high safety of the system. At the same time, it achieves the integration of safety control functions (achieved through a neutral wire switch), avoiding the need to add additional low-voltage signal pins for functions such as the lid opening signal, thereby effectively controlling the total number of pins to 8, reducing the size of the coupler, and meeting the space requirements of the compact food processor structure design.

[0066] The coupler includes U, V, and W three-phase pins and terminals for transmitting the frequency converter drive current, i.e., transmitting the three-phase frequency converter high voltage generated by the power board inside the base 20 to the motor 40 inside the cup. The motor neutral pin M-2 and the motor neutral coupling terminal F-2 connect to the neutral wire of the frequency converter power board, and are physically disconnected by the internal switch module 70 (cup lid high-voltage switch) when the outer cover is opened. The heating drive neutral wire Heat N connects to the heating load neutral wire, serving as a heating safety high-voltage circuit, and is also physically disconnected by the internal switch module 70 (cup lid high-voltage switch) when the outer cover is opened. The heating drive live wire Heat L connects to the live wire of the heating load, serving as a heating power supply circuit. The NTC pin M-6 and the NTC coupling terminal F-6 transmit temperature sensor signals for material temperature detection. The grounding pin M-4 connects to the NTC reference point. During actual operation, the power board outputs a signal through the heating drive neutral wire Heat N, which connects to the microswitch in the processing cup assembly 10 via the coupler. A microswitch connects to the motor drive neutral line (Moto N) in the machining cup assembly. This neutral line (Moto N) is connected to the power board via a coupler, and the power board then supplies power to the variable frequency motor through a rectifier bridge. When the microswitch is off, the rectifier bridge input neutral line (N) is disconnected, and the motor cannot run.

[0067] In this embodiment, the variable frequency motor 40 is placed inside the cup and isolated from the material, which effectively utilizes the liquid in the cup and the food for sound absorption and vibration reduction, thus improving the user experience. Three-phase current is transmitted through a coupler, resulting in a simple structure and easy cleaning. The processing cup assembly 10 is a complete drive and functional unit, while the base 20 serves only as a power supply and control base. After the cup is removed, the base 20 and the female end of the coupler 52 have no mechanical transmission parts, making them easier to clean.

[0068] This embodiment integrates all the necessary pathways for high-voltage variable frequency drive, high-voltage safety cut-off, high-power heating, and intelligent detection onto a single detachable interface, achieving the highest balance between performance, functionality, and safety in a detachable food processor. By physically cutting off the main neutral circuit of the variable frequency power board, it ensures immediate stop upon opening the lid from a hardware perspective, resolving the fundamental safety hazards of low-voltage control in the background technology. While achieving ultimate performance (variable frequency motor mounted on top), it ensures the highest level of electrical safety.

[0069] This embodiment successfully solves the problem of safe and stable transmission of high-voltage variable frequency current in the variable frequency motor 40 top-mounted scheme by designing a high-requirement, highly integrated 8-pin coupler. At the same time, it retains the core safety advantage of the present invention—using the cup lid's high-voltage switch to physically disconnect the neutral wire of the drive system, providing a safe, efficient, and detachable ideal technical solution for detachable food processors that pursue ultimate noise reduction and high performance.

[0070] Please continue to refer to this. Figure 3In one optional embodiment of this disclosure, the heating neutral coupling terminal F-1, the heating live coupling terminal F-3, and the motor neutral coupling terminal F-2 are respectively connected to the wiring terminals on the power supply board. For example, the motor neutral coupling terminal F-2 is connected to the rectifier bridge on the power supply board, and the heating neutral coupling terminal F-1 is connected to the filter circuit on the power supply board. The NTC coupling terminal F-6 and the ground coupling terminal F-4 are respectively connected to the wiring terminals on the control board.

[0071] In this embodiment, the high-voltage circuit terminals (heating drive neutral wire, heating drive live wire, motor drive neutral wire) in the coupler terminals are used to transmit high voltage and high current, connect to the power board, and are responsible for the switching and management of high-voltage power supply. They are directly connected to the power grid and load drive components (such as relays, thyristors, rectifier bridges, etc.). The low-voltage signal terminals (NTC, ground) in the coupler terminals are used to transmit low voltage and low current, connect to the control board, and are responsible for intelligent control and signal acquisition, processing information such as material temperature and status detection, and issuing control commands to the power board. This is equivalent to classifying all lines transmitted by the coupler according to their electrical characteristics and functions: the high-voltage, high-current load power supply lines are handled by the power board; the low-voltage, low-current sensor / signal lines are handled by the control board. In this way, the high-voltage, high-current high-voltage circuit and the weak NTC temperature signal circuit are isolated on the circuit board. The electromagnetic interference (EMI) generated by the high current is difficult to couple to the weak signal acquisition circuit of the control board. This ensures that the temperature signals acquired by the NTC and other sensors are accurate and stable, avoiding misreading or system malfunctions caused by motor or heating operation. The power supply board can centrally design components for high-voltage, high-current handling (such as thick copper traces, heat sinks, relays, and fuses). When the motor neutral wire and heating neutral wire are disconnected, the power-off action is completed quickly and reliably on the highly integrated power supply board. This simplifies power supply board design, improves heat dissipation efficiency, allows focus on high-current transmission and protection, and enhances system safety redundancy and thermal stability.

[0072] The control board can focus on operating logic, human-machine interaction, and signal processing, avoiding interference and space occupation from high-voltage components. This enhances the flexibility and integration of the control board (microcontroller / MCU), enabling it to operate more stably and implement more complex cooking algorithms and human-machine interaction functions. In the event of a power failure (such as a blown fuse or load malfunction), the power board can be directly inspected; similarly, in the event of functional abnormalities (such as incorrect temperature display or program malfunction), the control board can be directly inspected, reducing after-sales and production maintenance costs and improving system maintainability.

[0073] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0074] The above description is merely a specific embodiment of this disclosure, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A food processor, characterized in that, include: A processing cup assembly for containing food to be processed, the processing cup assembly including a cup body, a cup lid that covers the cup body, a shredder disposed inside the cup body, and a heating load; A base is located below the processing cup assembly and is connected to the processing cup assembly; A drive module and a motor, wherein the drive module is used to drive the motor to work, and the motor is used to drive the crushing blade to rotate; A coupler includes a male terminal disposed on the processing cup assembly and a female terminal disposed on the base; the male terminal includes a plurality of coupling pins, and the female terminal includes a plurality of coupling terminals that mate with the coupling pins; the coupling pins include a motor neutral wire pin and a heating neutral wire pin, the motor neutral wire pin being electrically connected to the motor drive neutral wire in the processing cup assembly, and the heating neutral wire pin being electrically connected to the heating drive neutral wire in the processing cup assembly; the heating drive neutral wire and the motor drive neutral wire in the processing cup assembly are respectively connected to the heating load; the coupling terminals include a motor neutral wire coupling terminal and a heating neutral wire coupling terminal, one end of the motor neutral wire coupling terminal being electrically connected to the motor neutral wire pin, and the other end being connected to the motor neutral wire terminal of the drive module or to the neutral wire terminal of the motor; one end of the heating neutral wire coupling terminal is electrically connected to the heating neutral wire pin, and the other end is connected to the heating neutral wire terminal of the drive module; A switch module is connected in series between the heating drive neutral wire and the motor drive neutral wire in the processing cup assembly; the switch module is configured to disconnect when the cup lid is opened and to connect when the cup lid is closed.

2. The food processor according to claim 1, characterized in that, The male terminal of the coupler also includes a heating wire pin, which is connected to the heating drive wire in the processing cup assembly. The heating drive wire and the heating drive neutral wire in the processing cup assembly are respectively connected to the two ends of the heating load. The coupling terminal includes a heating wire coupling terminal, one end of which is electrically connected to the heating wire pin, and the other end is connected to the heating wire terminal of the drive module.

3. The food processor according to claim 2, characterized in that, The processing cup assembly also includes an NTC for detecting the temperature of the material inside the cup. The male terminal of the coupler includes an NTC pin and a ground pin. One end of the NTC is electrically connected to the NTC pin, and the other end is electrically connected to the ground pin. The coupling terminal includes an NTC coupling terminal and a ground coupling terminal. One end of the NTC coupling terminal is electrically connected to the NTC pin, and the other end is electrically connected to the NTC terminal of the drive module. One end of the ground coupling terminal is electrically connected to the ground pin, and the other end is electrically connected to the ground terminal of the drive module.

4. The food processor according to claim 3, characterized in that, The motor is a series motor. The series motor and the drive module are located inside the frame. The neutral wire of the series motor is electrically connected to the motor neutral wire coupling terminal in the coupling terminal. The live wire of the series motor is electrically connected to the live wire of the drive module.

5. The food processor according to claim 4, characterized in that, The male end of the coupler includes six coupling pins, and the female end of the coupler includes six coupling terminals; The male terminal of the coupler also includes a protective grounding pin, the heating load includes a heating element, and the protective grounding pin is electrically connected to the heating element; The coupling terminal includes a protective grounding coupling terminal. One end of the protective grounding coupling terminal is electrically connected to the protective grounding pin, and the other end is electrically connected to the protective grounding terminal of the drive module. The protective grounding terminal of the drive module is grounded.

6. The food processor according to claim 3, characterized in that, The motor is a variable frequency motor, and the drive module includes a control board and a power board connected to the control board. The variable frequency motor and the drive module are located inside the frame. The variable frequency motor includes a U-phase terminal, a V-phase terminal and a W-phase terminal. The U-phase terminal, V-phase terminal and W-phase terminal of the variable frequency motor are electrically connected to the U-phase terminal, V-phase terminal and W-phase terminal of the power board, respectively. The grounding terminal of the variable frequency motor is electrically connected to the grounding coupling terminal in the female terminal of the coupler.

7. The food processor according to claim 6, characterized in that, The male end of the coupler includes 7 coupling pins, and the female end of the coupler includes 7 coupling terminals; The motor neutral wire coupling terminal, the heating neutral wire coupling terminal, and the heating live wire coupling terminal in the female end of the coupler are respectively electrically connected to the terminals in the power board. The cup body assembly also includes a DS switch, and the male terminal of the coupler also includes an anti-overflow pin and a lid-close detection pin. The anti-overflow pin is connected to one terminal of the DS switch, and the lid-close detection pin is connected to the other terminal of the DS switch. The female end of the coupler also includes an anti-overflow coupling terminal and a cover-close detection coupling terminal. One end of the anti-overflow coupling terminal is electrically connected to the anti-overflow pin, and the other end is electrically connected to the anti-overflow terminal of the control board. One end of the cover-close detection coupling terminal is electrically connected to the cover-close detection pin, and the other end is electrically connected to the cover-close detection terminal of the control board.

8. The food processor according to claim 3, characterized in that, The motor is a variable frequency motor, the drive module is located inside the machine base, and the variable frequency motor is located inside the processing cup assembly; the drive module includes a control board and a power board connected to the control board; The male terminal of the coupler includes 8 coupling pins, and the female terminal of the coupler includes 8 coupling terminals; the male terminal of the coupler also includes a U-phase pin, a V-phase pin, and a W-phase pin, and the U-phase terminal, V-phase terminal, and W-phase terminal of the variable frequency motor are electrically connected to the U-phase pin, V-phase pin, and W-phase pin of the male terminal of the coupler, respectively. The female terminal of the coupler includes a U-phase coupling terminal, a V-phase coupling terminal and a W-phase coupling terminal. One end of the U-phase coupling terminal is electrically connected to the U-phase pin, and the other end is electrically connected to the U-phase terminal of the power board. One end of the V-phase coupling terminal is electrically connected to the V-phase pin, and the other end is electrically connected to the V-phase terminal of the power board; One end of the W-phase coupling terminal is electrically connected to the W-phase pin, and the other end is electrically connected to the W-phase terminal of the power board.

9. The food processor according to claim 8, characterized in that, The heating neutral wire coupling terminal, heating live wire coupling terminal, and motor neutral wire coupling terminal in the coupling terminals are respectively connected to the wiring terminals in the power supply board, and the NTC coupling terminal and the grounding coupling terminal are respectively connected to the wiring terminals in the control board.

10. The food processor according to claim 1, characterized in that, The processing cup assembly includes a handle disposed on the outside of the cup body, and the switch module includes a micro switch disposed on the handle.

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