CN213279424U - Food processer circuit and handheld mixer - Google Patents

Abstract

The application provides a material processing machine circuit and handheld mixer. The food processer circuit comprises a power supply connecting end, a motor and an anti-interference circuit. The power supply connecting end is used for connecting a power supply and comprises a first power supply connecting end and a second power supply connecting end; the motor is connected to the first power supply connecting end and the second power supply connecting end; the anti-interference circuit is connected between the motor and the power connection end and comprises an anti-interference capacitor and a piezoresistor, the anti-interference capacitor is connected between the first power connection end and the second power connection end, and the piezoresistor is connected with the anti-interference capacitor in parallel. The handheld mixer includes cooking machine circuit. The EMC test passing rate of the handheld mixer is higher.

Description

Food processer circuit and handheld mixer

Technical Field

The application relates to the field of household appliances, in particular to a material processing machine circuit and a handheld stirring machine.

Background

With the increasing living standard of people, many different types of blenders appear on the market. Wherein, handheld mixer compares in desk-top mixer, and the operation is simple convenient relatively. However, the passing rate of some hand-held mixers in the emc (electromagnetic compatibility) test before the factory shipment is still to be improved.

SUMMERY OF THE UTILITY MODEL

The application provides a modified cooking machine circuit and handheld mixer can improve the passing rate of EMC test.

The application provides a cooking machine circuit is applied to handheld mixer, includes:

the power supply connection end is used for connecting a power supply and comprises a first power supply connection end and a second power supply connection end;

a motor connected to the first power connection terminal and the second power connection terminal; and

the anti-interference circuit is connected between the motor and the power connection ends and comprises an anti-interference capacitor and a piezoresistor, the anti-interference capacitor is connected between the first power connection end and the second power connection end, and the piezoresistor is connected with the anti-interference capacitor in parallel.

Further, the cooking machine circuit includes first electric wire and second electric wire, first connection of electric lines first power connection end, the second connection of electric lines second power connection end, first electric wire with the second electric wire respectively with the motor is connected, piezo-resistor with anti-interference electric capacity locates first electric wire with on the second electric wire, and parallel connection be in first electric wire with between the second electric wire. In some embodiments, the piezoresistor and the anti-interference capacitor are arranged on the first electric wire and the second electric wire, and the piezoresistor and the anti-interference capacitor are not required to be arranged on the circuit board, so that the volume of the circuit board can be reduced, the space in the host is fully utilized, the volume of the host can be reduced, and the user can conveniently grasp and use the circuit board.

Furthermore, the anti-interference circuit comprises an anti-interference magnetic ring, the first electric wire and the second electric wire penetrate through the anti-interference magnetic ring, and the piezoresistor and the anti-interference capacitor are connected between the anti-interference magnetic ring and the power supply connecting end in parallel. In some embodiments, anti-interference electric capacity, piezo-resistor and anti-interference magnetic ring can restrain the different electromagnetic interference signals in the cooking machine circuit, and cooking machine circuit's stability is higher.

Further, the anti-jamming circuit comprises a protection resistor, and the protection resistor is connected with the anti-jamming capacitor in parallel. In some embodiments, the protective resistor may absorb the stored electrical energy on the anti-tamper capacitor when the hand-held mixer is powered off.

Further, the food processor circuit comprises a safety device;

the safety device is connected between the first power supply connecting end and the anti-interference circuit in series; or

The safety device is connected between the second power supply connecting end and the anti-interference circuit in series. In some embodiments, the safety device can protect circuit components in the food processor circuit when the current or the voltage on the food processor circuit is too large, and prevent the circuit components in the food processor circuit from being damaged.

Further, the food processer circuit includes drive circuit, drive circuit connect in first power connection end with between the motor, be used for the drive the motor. In some embodiments, the motor can be controlled more accurately by the driving circuit.

Furthermore, the driving circuit comprises a full-speed circuit and a gear shifting circuit, the full-speed circuit and the gear shifting circuit are respectively connected between the first power supply connection end and the motor, the food processor circuit comprises a switch, the switch comprises a movable contact, a first stationary contact and a second stationary contact, the movable contact is connected with the first power supply connection end, the first stationary contact is connected with one end of the full-speed circuit, the second stationary contact is connected with one end of the gear shifting circuit, and the other end of the full-speed circuit is connected with one end of the gear shifting circuit connected with the motor. In some embodiments, the hand-held blender is made more functional by controlling the switch to switch between the full speed circuit and the gear shifting circuit.

Further, the cooking machine circuit includes the controller, the circuit of transferring files includes the silicon controlled rectifier, the base of silicon controlled rectifier is connected the controller, the first pole of silicon controlled rectifier is connected the motor, the second pole of silicon controlled rectifier is connected first power connection end. In some embodiments, the rotating speed of the motor can be accurately controlled by controlling the silicon controlled rectifier, and the silicon controlled rectifier has low cost and small volume, thereby being beneficial to reducing the circuit cost and reducing the circuit volume.

Further, the cooking machine circuit includes the controller, the circuit of shifting gears includes the device of shifting gears, the controller is connected the device of shifting gears, the controller is gathered the signal of telecommunication of the device of shifting gears, according to signal of telecommunication control the silicon controlled rectifier is adjusted the rotational speed of motor. In some embodiments, the rotating speed of the motor is set through the gear shifting device, so that the handheld stirring machine can work at different working gears, different food materials are stirred, and the applicability is wider.

The application provides a handheld mixer, includes as above arbitrary cooking machine circuit.

In some embodiments of the present application, the anti-jamming circuit is connected between the motor and the power connection terminal and includes an anti-jamming capacitor and a varistor. The piezoresistor is connected with the anti-interference capacitor in parallel. The piezoresistor can effectively protect the anti-interference capacitor, and the risk that the anti-interference capacitor is damaged in the EMC test is reduced, so that the passing rate of the handheld stirrer in the EMC test can be improved.

Drawings

FIG. 1 is a cross-sectional view of a hand blender provided in accordance with an embodiment of the present application;

fig. 2 is a circuit block diagram of an food processor circuit provided in an embodiment of the present application;

fig. 3 is a circuit diagram of the food processor circuit in fig. 2.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The use of the terms "a" or "an" and the like in the description and in the claims of this application do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" includes two, and is equivalent to at least two. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

FIG. 1 is a cross-sectional view of a hand blender 100 provided in accordance with an embodiment of the present application. Referring to FIG. 1, a hand blender 100 includes a base unit 11 and a blending member 12 mounted to the base unit 11. The host 11 may be gripped by an operator. The stirring member 12 may be used for stirring food material. Specifically, the operator can grasp the main body 11, extend the stirring member 12 into the container with the food material, and stir the food material. The food material herein may be liquid, gel, solid, and may also be a mixture of liquid and solid, such as water, soybean milk, egg white, flour, etc.

In some embodiments, the hand blender 100 includes a plurality of different blending members 12, such as batter sticks, whisks, and the like. The stirring member 12 is detachably mounted to the main body 11. The operator can select suitable stirring piece 12 to install on the main machine 11 according to the food material that needs to be whipped.

Fig. 2 is a circuit block diagram of an food processor circuit 200 according to an embodiment of the present application. Referring to fig. 1 and 2, the hand blender 100 includes a processor circuit 200. In some embodiments, the food processor circuit 200 can be disposed in the main body 11 of the hand blender 100.

The food processor circuit 200 includes a power connection terminal 115, a motor 114, and an anti-jamming circuit 112. The power connection terminal 115 is used for connecting a power supply 116. The power source 116 provides electrical power to operate the hand blender 100. In the present embodiment, the power supply 116 includes an ac power source, such as mains power. Power connection terminal 115 includes a first power connection terminal 1151 and a second power connection terminal 1152. The first power connection 1151 is connected to the hot line L of the ac power source 116 and the second power connection 1152 is connected to the neutral line N of the power source 116. In other embodiments, the power supply 116 comprises a dc power supply. First power connection 1151 may be connected to the positive pole of power supply 116 and second power connection 1152 may be connected to the negative pole of power supply 116.

In some embodiments, the food processor circuit 200 can include a first wire 1111 and a second wire 1112, the first wire 1111 being coupled to the first power connection end 1151 and the second wire 1112 being coupled to the second power connection end 1152. The power provided by the power source 116 is transmitted to the hand mixer 100 via the first wire 1111 and the second wire 1112 to drive the hand mixer 100 to work. A first wire 1111 and a second wire 1112 may extend from within the host 11 and connect to the power source 116 through a first power connection 1151 and a second power connection 1152. In some embodiments, the first wire 1111 and the second wire 1112 may be power cords, and the first power connection 1151 and the second power connection 1152 may be plugs connected to the power cords.

The motor 114 is connected to the first power connection 1111 and the second power connection 1112, and is connected to the power source 116 through the first power connection 1111 and the second power connection 1112. Specifically, the first wire 1111 and the second wire 1112 may be connected to the motor 114, respectively. The motor 114 is connected to the first power connection terminal 1111 and the second power connection terminal 1112 through a first wire 1111 and a second wire 1112. The power supplied by the power source 116 may drive the motor 114 to rotate. The motor 114 can be connected with the stirring part 12, and the motor 114 rotates and can drive the stirring part 12 to rotate, so as to stir the food materials.

The interference rejection circuit 112 is connected between the motor 114 and the power connection 111. The immunity circuit 112 may suppress electromagnetic interference signals generated during operation of the motor 114, and reduce or prevent the electromagnetic interference signals from interfering with, for example, the power supply 116; meanwhile, the immunity circuit 112 may also suppress the electromagnetic interference signal generated by the power supply 116, and reduce or prevent the electromagnetic interference signal from interfering with the subsequent circuit (e.g., the motor 114). The immunity circuit 112 may include an immunity capacitor 1121 and a varistor 1123. In some embodiments, the anti-interference capacitor 1121 includes an X capacitor, and is connected between the first power connection end 1111 and the second power connection end 1112, and may be used to absorb and suppress electromagnetic interference signals generated by the power supply 116, the motor 114, and other circuit components, so that each circuit component interferes less with each other, and the stable operation of the food processor circuit 200 is ensured. An appropriate antijam capacitor 1121 may be selected according to a frequency band where an interference signal to be filtered out is located, so as to filter the interference signal. The piezoresistor 1123 is connected with the anti-interference capacitor 1121 in parallel, and the piezoresistor 1123 can effectively protect the anti-interference capacitor 1121, so that the risk that the anti-interference capacitor 1121 is damaged in an EMC test is reduced, and the passing rate of the handheld stirrer 200 in the EMC test is improved; and the surge interference signal (for example, lightning surge interference from the power supply 116) in the food processor circuit 200 can be suppressed, the antijam capacitor 1121 is prevented from being broken down and damaged due to high voltage, and the risk that the antijam circuit 112 is damaged is reduced.

In some embodiments, a varistor 1123 and a capacitor 1121 are disposed on first wire 1111 and second wire 1112, and are connected in parallel between first wire 1111 and second wire 1112. The varistor 1123 and the anti-interference capacitor 1121 may not be disposed on the circuit board, so that the volume of the circuit board may be reduced, and the space in the host 11 may be fully utilized, thereby reducing the volume of the host 11 and facilitating the user to grasp and use.

In some embodiments of the present application, the immunity circuit 112 is connected between the motor 114 and the power connection terminal 115, and includes an immunity capacitor 1121 and a voltage dependent resistor 1123. The varistor 1123 is connected in parallel with the antijam capacitor 1121. The anti-jamming circuit 112 can suppress electromagnetic interference signals generated by the motor 114 and/or the power supply 116, and ensure stable operation of the food processor circuit 200. The piezoresistor 1123 can absorb surge interference signals in the food processor circuit 200, prevent the anti-interference capacitor 1121 from being broken down due to high voltage, effectively protect the anti-interference capacitor 1121, reduce the risk that the anti-interference capacitor 1121 is damaged in the EMC test, and therefore improve the passing rate of the handheld stirrer 200 in the EMC test. In addition, the piezoresistor 1123 inhibits and absorbs surge interference signals, so that on one hand, the safety of a user in the process of using the hand-held stirring machine 200 can be greatly improved, and the user is prevented from being injured by high voltage generated during surge interference; on the other hand, can protect other circuit components in cooking machine circuit 200 not damaged because of the high pressure, reduce handheld mixer 200's rate of reprocessing, reduce cost of maintenance.

Fig. 3 is a circuit diagram of the food processor circuit 200 in fig. 2. Referring to fig. 1 to fig. 3, in some embodiments, the anti-interference circuit 112 includes an anti-interference magnetic ring 1124, and the anti-interference magnetic ring 1124 is disposed between the power connection terminal 115 and the motor 114, and can be used together with the anti-interference capacitor 1121 and the voltage dependent resistor 1123 to suppress electromagnetic interference signals generated in the food processor circuit 200. Specifically, in some embodiments, the anti-interference capacitor 1121, the varistor 1123, and the anti-interference magnetic ring 1124 may suppress different electromagnetic interference signals in the food processor circuit 200, so that the stability of the food processor circuit 200 is high. The different electromagnetic interference signals herein include electromagnetic interference signals of different frequency bands, and/or electromagnetic interference signals generated by different circuit components, and/or electromagnetic interference signals of different voltage ranges.

In some embodiments, the first wire 1111 and the second wire 1112 pass through the anti-interference magnetic ring 1124, and the voltage dependent resistor 1123 and the anti-interference capacitor 1121 are connected in parallel between the anti-interference magnetic ring 1124 and the power connection terminal 115. The first wire 1111 and the second wire 1112 are respectively connected with the motor 114 after passing through the anti-interference magnetic ring 1124. The circuit structure is simple.

In some embodiments, the first wire 1111 and the second wire 1121 may be passed through the anti-interference magnetic ring 1124 after the anti-interference magnetic ring 1124 is wound by N turns. Wherein the value of N is an integer greater than or equal to 1. Therefore, the suppression effect of the anti-interference magnetic ring 1124 on electromagnetic interference signals can be enhanced.

In some embodiments, the immunity circuit 112 includes a protection resistor 1122, and the protection resistor 1122 is connected in parallel with the immunity capacitor 1121. Specifically, one end of the protection resistor 1122 is connected to the first wire 1111, and the other end of the protection resistor 1122 is connected to the second wire 1112. When the hand-held blender 100 is powered off, the protection resistor 1122 can absorb the electric energy stored in the anti-interference capacitor 1121 to prevent the electric energy stored in the anti-interference capacitor 1121 from being output to the first power connection end 1151 and the second power connection end 1152 through the first electric wire 1111 and the second electric wire 1112, so that the user is injured, and the safety of the user in the process of using the hand-held blender 100 is improved.

In some embodiments, immunity circuitry 112 may include a plurality of protection resistors 1122. The protection resistors 1122 are connected in series and connected in parallel to the anti-interference capacitor 1121, which provides a high circuit safety.

In some embodiments, the food processor circuit 200 includes a safety device 113. The fuse device 113 is connected in series between the first power connection 1151 and the immunity circuit 112. The safety device 113 can protect circuit components in the food processor circuit 200 when the current or voltage on the food processor circuit 200 is too large, and prevent the circuit components in the food processor circuit 200 from being damaged. Specifically, when the current or voltage on the food processor circuit 200 is too large, the safety device 113 may be disconnected to disconnect the power supply 116 from the food processor circuit 200, so as to protect the food processor circuit 200. The safety device 113 may include a current safety device, and when the current in the food processor circuit 200 is too large (for example, when the food processor circuit 200 is short-circuited), the safety device 113 may be opened to protect the food processor circuit 200. In other embodiments, the fuse device 113 may be connected in series between the second power connection 1152 and the immunity circuit 112. The circuit design is more flexible.

In some embodiments, the food processor circuit 200 includes a driving circuit 21, and the driving circuit 21 is connected between the first power connection terminal 1151 and the motor 114 for driving the motor 114. The motor 114 can be controlled more accurately by the drive circuit 21. In other embodiments, the driver circuit 21 may be connected between the second power connection 1152 and the motor 114. The circuit design is more flexible.

In some embodiments, drive circuit 21 includes a full-speed circuit 211 and a gear shifting circuit 212, full-speed circuit 211 and gear shifting circuit 212 being coupled between first power connection terminal 1151 and motor 114, respectively. In other embodiments, full-speed circuit 211 and gear shifting circuit 212 are coupled between second power connection 1152 and motor 114, respectively. The circuit design is more flexible.

In some embodiments, the motor 114 may be controlled to rotate at full-speed gear speed by controlling the full-speed circuit 211, and the motor 114 may be controlled to rotate at the set gear speed by controlling the gear shifting circuit 212. The speed of electric motor 114 when operating in the set gear may be lower than the speed of electric motor 114 when operating in the full-speed gear. The set gears of the motor 114 may include a plurality of gears, such as a first rotational speed gear and a second rotational speed gear. The rotational speed of the motor 114 is different for each gear. The user can configure the control motor 114 to operate in a full speed gear or a set gear. Specifically, in some embodiments, the food processor circuit 200 includes a switch 22, the switch 22 includes a movable contact a, a first fixed contact B and a second fixed contact C, the movable contact a is connected to the first power connection terminal 1151, the first fixed contact B is connected to one end of the full-speed circuit 211, the second fixed contact C is connected to one end of the shift circuit 212, and the other end of the full-speed circuit 211 is connected to the end of the shift circuit 212 connected to the motor 114. By controlling the changeover switch 22, the on/off between the movable contact a and the first stationary contact B or the second stationary contact C can be controlled. When the moving contact A is communicated with the first fixed contact B, the power supply 116 is communicated with the full-speed circuit 211, and the full-speed circuit 211 controls the motor 114 to work in a full-speed gear position; when the movable contact a is communicated with the second stationary contact C, the power supply 116 is communicated with the gear shifting circuit 212, and the gear shifting circuit 212 controls the motor 114 to operate in the set gear. The hand mixer is more functional by controlling the switch 22 to switch between the full speed circuit 211 and the gear shifting circuit 212.

In some embodiments, the food processor circuit 200 includes a controller 23, the controller 23 can be connected to the switch 22, and the controller 23 controls the on/off between the movable contact a of the switch 22 and the first stationary contact B or the second stationary contact C according to the operating position of the motor 114 set by the user. In other embodiments, the switch 22 is a knob, button, etc. that can be operated by a user, and the user can operate the switch 22 to switch between the full-speed gear and the set gear of the motor 114.

In some embodiments, full-speed circuit 211 includes a full-speed switch 2111 and gear shifting circuit 212 includes a gear shifting device 2121. When the motor 114 is switched to the full-speed gear position, the motor 114 can be started to rotate at the speed of the full-speed gear position by controlling the full-speed switch 2111; when the motor 114 is shifted to the set gear, the motor 114 can be started to rotate at the speed of the set gear by controlling the shift device 2121. Full-speed switch 2111 and gear shifting device 2121 may include knobs, buttons, and the like. In other embodiments, the drive circuit 21 may include only the shift device 2121, and the user may activate the motor 114 to rotate at the full speed or set speed by setting the shift device 2121 to a different position (e.g., by rotating the knob to a different position).

In some embodiments, the shift circuit 212 includes a silicon controlled SCR, the base of which is connected to the controller 23, the first pole T1 of which is connected to the motor 114, and the second pole T2 of which is connected to the first power connection 1151. The controller 23 controls the motor 114 to rotate at a rotation speed of a set gear by controlling a turn-on time point of the silicon controlled rectifier SCR according to a gear set by a user. The rotating speed of the motor 114 can be accurately controlled by controlling the Silicon Controlled Rectifier (SCR), and the Silicon Controlled Rectifier (SCR) is low in cost and small in size, so that the circuit cost is reduced, and the circuit size is reduced.

In some embodiments, the controller 23 is connected to the shift device 2121, and the controller 23 collects an electrical signal of the shift device 2121 and controls the SCR to regulate the rotation speed of the motor 114 according to the electrical signal. In this embodiment, the controller 23 may collect a voltage signal of the gearshift device 2121 to determine the gear set by the user. The gearshift device 2121 comprises a resistor R3, each gear corresponds to at least one resistor R3, and the resistance value of the resistor R3 corresponding to each gear is different. The resistor R3 may be connected to a power supply terminal (not shown). After a user sets a certain gear, for example, the knob is rotated to a desired gear, the resistor R3 corresponding to the gear is connected to the power supply terminal, and the resistor R3 can divide the voltage of the power supply terminal. Since the resistance value of the resistor R3 corresponding to each gear is different, and the voltage division on the power supply terminal is different, the controller 23 can determine the gear set by the user by collecting the voltage on the resistor R3. The rotating speed of the motor 114 is set through the gear shifting device 2121, so that the handheld stirring machine 100 can work at different working gears to stir different food materials, and the applicability is wider.

In the food processor circuit 200 in some embodiments of the application, the varistor 1123 is connected in parallel with the anti-interference capacitor 1121, and the varistor 1123 can effectively protect the anti-interference capacitor 1121, so that the risk that the anti-interference capacitor 1121 is damaged due to high voltage (for example, a surge interference signal generated in the food processor circuit 200) in an EMC test is reduced, the probability that the anti-interference capacitor 1121 is in an effective working state is increased, and thus the passing rate of the handheld mixer 100 in the EMC test is increased.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.

Claims (10)

1. The utility model provides a cooking machine circuit, is applied to handheld mixer, its characterized in that, cooking machine circuit includes:

a power connection (115) for connecting a power source (116), the power connection (115) comprising a first power connection (1151) and a second power connection (1152);

a motor (114) connected to the first power connection (1151) and the second power connection (1152); and

the anti-interference circuit (112) is connected between the motor (114) and the power supply connection terminal (115) and comprises an anti-interference capacitor (1121) and a piezoresistor (1123), the anti-interference capacitor (1121) is connected between the first power supply connection terminal (1151) and the second power supply connection terminal (1152), and the piezoresistor (1123) is connected with the anti-interference capacitor (1121) in parallel.

2. The food processor circuit according to claim 1, wherein the food processor circuit comprises a first electric wire (1111) and a second electric wire (1112), the first electric wire (1111) is connected to the first power connection terminal (1151), the second electric wire (1112) is connected to the second power connection terminal (1152), the first electric wire (1111) and the second electric wire (1112) are respectively connected to the motor (114), and the varistor (1123) and the anti-interference capacitor (1121) are disposed on the first electric wire (1111) and the second electric wire (1112) and connected in parallel between the first electric wire (1111) and the second electric wire (1112).

3. The food processor circuit according to claim 2, wherein the anti-interference circuit (112) comprises an anti-interference magnetic ring (1124), the first wire (1111) and the second wire (1112) pass through the anti-interference magnetic ring (1124), and the piezoresistor (1123) and the anti-interference capacitor (1121) are connected in parallel between the anti-interference magnetic ring (1124) and the power connection terminal (115).

4. The food processor circuit according to any of claims 1-3, wherein the immunity circuit (112) comprises a protection resistor (1122), and the protection resistor (1122) is connected in parallel with the immunity capacitor (1121).

5. The food processor circuit according to any one of claims 1-3, wherein the food processor circuit comprises a safety device (113);

the fuse element (113) is connected in series between the first power supply connection (1151) and the interference suppression circuit (112); or

The fuse element (113) is connected in series between the second power supply connection (1152) and the interference suppression circuit (112).

6. Food processor circuit according to any of the claims 1-3, comprising a drive circuit (21), said drive circuit (21) being connected between said first power connection (1151) and said motor (114) for driving said motor (114).

7. The food processor circuit according to claim 6, wherein the drive circuit (21) comprises a full-speed circuit (211) and a shift circuit (212), the full-speed circuit (211) and the shift circuit (212) are respectively connected between the first power connection terminal (1151) and the motor (114), the food processor circuit comprises a switch (22), the switch (22) comprises a movable contact, a first stationary contact and a second stationary contact, the movable contact is connected with the first power connection terminal (1151), the first stationary contact is connected with one end of the full-speed circuit (211), the second stationary contact is connected with one end of the shift circuit (212), and the other end of the full-speed circuit (211) is connected with one end of the shift circuit (212) connected with the motor (114).

8. The food processor circuit according to claim 7, wherein the food processor circuit comprises a controller (23), the shift circuit (212) comprises a thyristor, a base of the thyristor is connected to the controller (23), a first pole of the thyristor is connected to the motor (114), and a second pole of the thyristor is connected to the first power connection terminal (1151).

9. The food processor circuit of claim 8, wherein the shift circuit (212) comprises a shift device (2121), the controller (23) is connected to the shift device (2121), the controller (23) collects an electrical signal of the shift device (2121), and the thyristor is controlled to regulate the rotation speed of the motor (114) according to the electrical signal.

10. A hand-held blender, comprising:

the food processor circuit of any one of claims 1 to 9.

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