CN210227882U

CN210227882U - Food processor identification circuit and food processor comprising same

Info

Publication number: CN210227882U
Application number: CN201920298364.0U
Authority: CN
Inventors: Huijiang Wang; 王慧江; Ranran Zeng; 曾然燃
Original assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Current assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Priority date: 2019-03-08
Filing date: 2019-03-08
Publication date: 2020-04-03
Anticipated expiration: 2029-03-08

Abstract

The application provides a cooking machine identification circuit and including this identification circuit's cooking machine. Food processor identification circuit includes a plurality of switches, a plurality of detection circuitry and controller. The plurality of switches respectively comprise a first end and a second end, the first ends of the plurality of switches are electrically connected to the power supply, and at least one different switch is triggered to be closed when different components to be identified are used. The plurality of detection circuits are electrically connected to the second ends of the corresponding switches, respectively, and detect the open/closed states of the corresponding switches and output detection signals indicating the open/closed states of the switches. The controller is electrically connected with the plurality of detection circuits and identifies the component to be identified according to the detection signal. The cooking machine includes host computer, a plurality of subassembly and cooking machine identification circuit of treating discerning.

Description

Food processor identification circuit and food processor comprising same

Technical Field

The application relates to the field of small household appliances, in particular to a food processor identification circuit and a food processor comprising the same.

Background

With the increasing living standard of people, many different types of food processors appear on the market. The functions of the food processor mainly include, but are not limited to, functions of making soybean milk, squeezing fruit juice, making rice paste, mincing meat, shaving ice, making coffee and/or blending facial masks and the like. The food processor can comprise a juice extractor (including a juice extractor), a soybean milk machine, a stirrer or a wall breaking food processor and the like.

Some cooking machines can be equipped with a plurality of cup body components by a host computer now, or a cup body component can be equipped with a plurality of bowl cover components to realize different functions. When the food processor uses different cup body assemblies or different cup cover assemblies, the cup body assemblies or the cup cover assemblies need to be identified, so that corresponding functions are executed. However, some existing food processor identification circuits are prone to erroneous judgment and poor in stability.

SUMMERY OF THE UTILITY MODEL

The application provides a cooking machine identification circuit and including this identification circuit's cooking machine, stability is better.

One aspect of the application provides a food processor identification circuit. The method comprises the following steps: a plurality of switches respectively comprising a first end and a second end, wherein the first ends of the plurality of switches are electrically connected to a power supply, and at least one different switch is triggered to be closed when different components to be identified are used; a plurality of detection circuits electrically connected to the second ends of the switches, respectively, the detection circuits detecting the on/off states of the switches and outputting detection signals indicating the on/off states of the switches; and the controller is electrically connected with the detection circuits and identifies the component to be identified according to the detection signals.

Further, the food processor identification circuit comprises a load driving circuit electrically connected with a load, and the load driving circuit is connected with the second ends of the plurality of switches. The switch can break-make power supply to load drive circuit's power supply line, makes the load not circular telegram when the switch disconnection, accords with the ann rule requirement, and the switch can be used for discerning treating the discernment subassembly, and the switch is multiplexing for the circuit is simple.

Further, the food processor identification circuit comprises a direct current power supply end, the detection circuit comprises a clamping circuit, the clamping circuit is connected to the switch, the controller and the direct current power supply end and comprises a first diode and a second diode, the anode of the first diode is connected with the cathode of the second diode, and the cathode of the first diode is connected to the direct current power supply end; the anode of the second diode is grounded, and the cathode of the second diode is connected to the controller. The clamping circuit can clamp the voltage at the input end of the controller within a certain range without breakdown.

Further, the detection circuit comprises a current limiting resistor which is connected in series between the switch and the clamping circuit; and/or the detection circuit comprises a pull-down resistor, one end of the pull-down resistor is connected with the anode of the first diode and the controller, and the other end of the pull-down resistor is grounded. The current limiting resistor can prevent the current of the detection circuit from being too large to burn out elements of the detection circuit.

Further, cooking machine identification circuit includes switching power supply, switching power supply electricity is connected to the power, and with the controller is connected, will the alternating current of power output converts the direct current to give the controller power supply, and is a plurality of the switch first end connect in switching power supply with between the power.

Further, the switch comprises a micro switch. The micro switch is a mechanical structural part, has definite opening and closing states and is not easy to be influenced by the environment to cause misjudgment.

Another aspect of the application provides a food processor, including: a host; a plurality of components to be identified, replaceably placed on the host; and a food processor identification circuit.

Further, the component to be identified comprises at least one of a cup component which is detachably assembled on the host machine and a cup cover component which can be covered on the cup component.

Further, at least two of cooking machine identification circuit the switch set up in the host computer, and be in orthographic projection position on the cross section of host computer staggers each other.

Further, the host comprises an accommodating cavity; the switch comprises a first switch, a first through groove with an upward opening and communicated with the accommodating cavity is formed in the top end of the host, and the first switch is installed in the accommodating cavity and located below the first through groove; and/or the switch comprises a second switch, the top end of the host is provided with a lateral opening and a second through groove communicated with the accommodating cavity, and the second switch is arranged in the accommodating cavity and positioned below the second through groove.

This application cooking machine identification circuit includes a plurality of switches, a plurality of detection circuitry and controller, when the different subassembly of discerning of treating uses, at least one different switch is triggered the closure, the on off state of the switch that a plurality of detection circuitry detected the correspondence, the subassembly is treated discerning according to the detected signal discernment to the controller, thereby through triggering at least one different switch, the different subassembly of discerning of treating is discerned to the on off state of detection switch, the on off state of switch is clear and definite, be difficult to produce the erroneous judgement, stability is better.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of a food processor of the present application;

FIG. 2 is a side partial cross-sectional view of one embodiment of the main body of the food processor shown in FIG. 1;

fig. 3 is a schematic block diagram of an embodiment of a food processor identification circuit according to the present application;

fig. 4 is a circuit diagram of one embodiment of the food processor identification circuit shown in fig. 3;

FIG. 5 is a flow diagram illustrating one embodiment of an identification method.

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 defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention 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. 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. 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. The word "plurality" or "a number" and the like mean two or more.

The cooking machine recognition circuit of this application embodiment includes a plurality of switches, a plurality of detection circuitry and controller. The plurality of switches respectively comprise a first end and a second end, the first ends of the plurality of switches are electrically connected to the power supply, and at least one different switch is triggered to be closed when different components to be identified are used. The plurality of detection circuits are electrically connected to the second ends of the corresponding switches, respectively, and detect the open/closed states of the corresponding switches and output detection signals indicating the open/closed states of the switches. The controller is electrically connected with the plurality of detection circuits and identifies the component to be identified according to the detection signal. Therefore, by triggering at least one different switch, the on-off state of the detection switch is used for identifying different components to be identified, the on-off state of the switch is clear, misjudgment is not easy to occur, and the stability is good.

Fig. 1 is a perspective view of an embodiment of a food processor 10. The food processor 10 includes a host 11, a plurality of components to be identified 12 and 13, and a food processor identification circuit 24 (see fig. 3). A plurality of

components

12, 13 to be identified may alternatively be placed on the host 11. In one embodiment, the component 11 to be identified may be placed directly on the host 11, or placed on other components, through other components, on the host 11. In one embodiment, the components to be identified 12 and 13 include at least one of a

cup component

14 and 15 detachably assembled on the host machine 11 and a cup cover component capable of being covered on the cup component.

In the illustrated embodiment, the components to be identified 12, 13 are

cup components

14, 15. In the illustrated embodiment, the food processor 10 includes two

cup assemblies

14, 15. In other embodiments, the food processor 10 can include three or more cup assemblies. Different functions can be realized by different cup assemblies, and different food materials can be manufactured. In some embodiments, the plurality of components to be identified 12, 13 may include at least two of a cold cup, a follower cup, a hot cup, a dry grind cup, a dough cup, a meat grinder cup, and a vacuum cup. The cold cup can be used for whipping food materials and making cold drinks, such as making juice, milkshakes, and the like. The accompanying cup can be used for stirring, heating and/or preserving heat of food materials and the like, can preserve the prepared food and is convenient to carry about. The hot cup can be used for beating and heating food materials and making hot drinks, such as soybean milk, rice paste and the like. The dry grinding cup can be used for grinding powder, making jam and the like. The dough kneading cup can be used for kneading dough and the like. The meat grinding cup can be used for grinding meat and the like. The vacuum cup has a vacuumizing function. In the illustrated embodiment, the component to be identified 12 is a cold cup and the component to be identified 13 is a satellite cup. The cold cup can be covered with a cup cover assembly 16.

In another embodiment, the component to be identified is a plurality of cup cover components which are assembled on the same cup component in a replaceable way, and different cup cover components can have different functions. In another embodiment, the components to be identified may be a plurality of

replaceable cup components

14 and 15 assembled to the host 11 and a plurality of replaceable cup cover components assembled to the same cup component. In other embodiments, the component to be identified may be other components of the food processor 10.

Fig. 2 is a side partial sectional view of an embodiment of the main body 11 of the food processor 10 shown in fig. 1. Fig. 3 is a schematic block diagram of an embodiment of the food processor identification circuit 24 of the present application. Referring to fig. 1-3, the food processor identifying circuit 24 is for identifying a plurality of

components

12, 13 of the food processor 10 to be identified, and includes a plurality of

switches

17, 18, a plurality of

detection circuits

30, 31, and a controller 25. The plurality of

switches

17, 18 comprise a

first end

26, 27 and a

second end

28, 29, respectively, the first ends 26, 27 of the plurality of

switches

17, 18 being electrically connected to a power supply (not shown), such as a mains power supply. The power supply comprises a live line L and a neutral line N. The fuse F1 is connected in series on the live line L. In one embodiment, the plurality of

switches

17, 18 are electrically connected to the live line L. In another embodiment, the plurality of

switches

17, 18 are electrically connected to the neutral line N. In other embodiments, some of the plurality of

switches

17, 18 may be electrically connected to the live line L and some of the switches may be electrically connected to the neutral line N. In one embodiment, the

switches

17 and 18 include micro switches, which are mechanical structures, and have definite open and close states, and are not easily affected by the environment to cause misjudgment.

In the use of

different components

12, 13 to be identified, at least one

different switch

17, 18 is triggered closed. The number of switches to be activated can be different when

different components

12, 13 to be identified are used, or the same number of switches, but different switches, can be activated. When different assemblies to be identified are used, the combination conditions of the opening and closing states of the switches are different, so that different assemblies to be identified can be identified. In one embodiment, different components to be identified are used, each triggering a different switch. The number of the switches is the same as that of the components to be identified, and the switches correspond to the components to be identified one by one. In the illustrated embodiment, the switches include a first switch 17 and a second switch 18. When the component 12 to be identified is placed on the host 11, the first switch 17 is triggered. When the component to be identified 13 is placed on the host 11, the second switch 18 is triggered.

In one embodiment, at least two

switches

17 and 18 of the food processor identifying circuit 24 are disposed on the main unit 11, and the orthographic projection positions on the cross section of the main unit 11 are mutually staggered. Therefore,

different components

12 and 13 to be identified can trigger corresponding switches at different positions, false triggering is avoided, and operation is convenient. In the illustrated embodiment, the first switch 17 and the second switch 18 are disposed on the same side of the host 11.

The main body 11 includes a housing chamber 21. The motor 39, the circuit board, etc. may be installed in the receiving cavity 21. In one embodiment, the top end of the main body 11 is provided with a first through slot 22 which opens upward and communicates with the accommodating cavity 21, and the first switch 17 is installed in the accommodating cavity 21 and located below the first through slot 22. And/or, a second through groove 23 which is laterally opened and communicated with the accommodating cavity 21 is arranged at the top end of the main machine 11, and the second switch 18 is installed in the accommodating cavity 21 and is positioned below the second through groove 23.

In the illustrated embodiment, the

components

12, 13 to be identified are provided with triggering parts 19, 20, the triggering part 19 being provided on the component 12 to be identified and the triggering part 20 being provided on the component 13 to be identified. The component 12 to be identified can be directly placed on the host 11 from top to bottom and assembled in place, and the trigger member 19 can be inserted into the first through slot 22 and can trigger the first switch 17. At which time the second switch 18 is open. In one embodiment, the triggering component 19 comprises a push rod arranged in a cup handle of the cup assembly 14, and when the cup cover assembly 16 is closed, the push rod is pushed downwards to trigger the first switch 17; when the cup cover assembly 16 is opened, the ejector rod is reset upwards, and the first switch 17 is disconnected.

The component 13 to be identified can be placed on the host 11 from top to bottom and then rotated to be assembled in place, and the trigger member 20 can be screwed into the second through groove 23 to trigger the second switch 18. The first switch 17 is now open. In one embodiment, the trigger member 20 includes a protrusion protruding from the outside of the cup assembly 15, near the bottom end of the cup assembly 15. Trigger member 20 may be integrally formed with cup 15. The opening directions of the first through groove 22 and the second through groove 23 are different, so that the assembly modes of the

components

12 and 13 to be identified are different, and the false triggering of the switch can be prevented.

In other embodiments, another component to be identified may be included, and when placed on the host 11, the first switch 17 and the second switch 18 are both turned on, so that they can be distinguished from the components to be identified 12 and 13 in the figure, and thus three components to be identified can be identified. In other embodiments, other numbers of switches may be provided to identify three or more components to be identified.

The plurality of

detection circuits

30 and 31 are electrically connected to the second ends 28 and 29 of the corresponding switches 17 and 18, respectively, and the

detection circuits

30 and 31 detect the open/closed states of the corresponding switches 17 and 18 and output detection signals indicating the open/closed states of the

switches

17 and 18. The controller 25 is electrically connected to the plurality of

detection circuits

30, 31, and identifies the

components

12, 13 to be identified based on the detection signals. In the illustrated embodiment, the controller 25 includes a plurality of detection ports I/O1 and I/O2, the detection ports I/O1 and I/O2 receive the detection signals output by the

detection circuits

30 and 31, determine the open/close states of the switches by analyzing the detection signals, and identify

different components

12 and 13 to be identified in combination with the combination of the

switches

17 and 18. In one embodiment, the

detection circuits

30, 31 comprise zero crossing detection circuits.

In the illustrated embodiment, the plurality of detection ports of the controller 25 include a first detection port I/O1 and a second detection port I/O2. The detection circuit includes a first detection circuit 30 and a second detection circuit 31. One end of the first detection circuit 30 is electrically connected to the second end 28 of the first switch 17, and the other end is connected to the first detection port I/O1 of the controller 25; one end of the second detection circuit 31 is electrically connected to the second end 29 of the second switch 18, and the other end is connected to the second detection port I/O2 of the controller 25. The first detection circuit 30 detects the open/close state of the first switch 17 and outputs a detection signal indicating the open/close state of the first switch 17; the second detection circuit 31 detects the open/close state of the second switch 18 and outputs a detection signal indicating the open/close state of the second switch 18.

In one embodiment, the food processor identifying circuit 24 includes a load driving circuit 33 electrically connected to the load 32, and the load driving circuit 33 is connected to the

second terminals

28, 29 of the plurality of

switches

17, 18. The load driving circuit 33 is used to drive the load 32. The controller 25 is connected to the load driving circuit 33, and can control the load driving circuit 33 to control the load 32. In one embodiment, load 32 may include a motor and/or a heating assembly. The

switches

17 and 18 can switch on and off a power supply line from a power supply to the load driving circuit 33, the load 32 is not electrified when the

switches

17 and 18 are switched off, the safety requirements are met, the

switches

17 and 18 can be used for identifying the

components

12 and 13 to be identified, and the switches are multiplexed, so that the circuit is simple.

In the illustrated embodiment, the load 32 and the load driving circuit 33 are connected in series between the

switches

17, 18 and the neutral line N, the load driving circuit 33 being connected to the second end 28 of the first switch 17 and the second end 29 of the second switch 18. The load driving circuit 33 controls and drives the load 32 to operate. When the

components

12 and 13 to be identified are not used, the first switch 17 and the second switch 18 are both switched off, the load 32 and the load driving circuit 33 are switched off from the live wire L, and the load 32 is switched off and stops working. When the

components

12 and 13 to be identified are used, the first switch 17 or the second switch 18 is triggered to be conducted, the load 32 and the load driving circuit 33 are electrically connected to a power supply, and the load 32 can work. Therefore, when the

switches

17 and 18 are switched off, the load 32 is not electrified, the safety requirements are met, component failure tests are not required to be carried out on the circuit board of the controller 25, and the peripheral circuit of the circuit board of the controller 25 is simple.

In one embodiment, the food processor identifying circuit 24 includes a switching power supply 34, the switching power supply 34 is electrically connected to the power supply and is connected to the controller 25 for converting the ac power outputted from the power supply into dc power to power the controller 25, and the

first terminals

26, 27 of the plurality of

switches

17, 18 are connected between the switching power supply 34 and the power supply. In the illustrated embodiment, the controller 25 includes a power supply terminal VCC connected to the neutral line N and a ground terminal GND connected to the switching power supply 34. The first terminal 26 of the first switch 17 and the first terminal 27 of the second switch 18 are connected between the switching power supply 34 and the power supply. In the illustrated embodiment, the switching power supply 34 is a non-isolated switching power supply. The two ends of the switching power supply 34 are connected to the live line L and the neutral line N, respectively.

Fig. 4 is a circuit diagram of an embodiment of the food processor identifying circuit 24 shown in fig. 3. In the illustrated embodiment, the food processor identification circuit 24 includes a dc power supply terminal VCC0, and the dc power supply terminal VCC0 is connected to the neutral line N. One end of the

switches

17, 18 is connected to the live line L, and the other end is connected to the

detection circuits

30, 31.

In one embodiment, the

sensing circuit

30, 31 includes a clamping

circuit

35, 36 connected to the

switches

17, 18, the controller 25 and the dc supply terminal VCC 0. The

clamp circuits

35 and 36 include first diodes D1 and D3 and second diodes D2 and D4, anodes of the first diodes D1 and D3 are connected to cathodes of the second diodes D2 and D4, cathodes of the first diodes D1 and D3 are connected to a dc power supply terminal VCC0, anodes of the second diodes D2 and D4 are grounded, and cathodes of the second diodes D2 and D4 are connected to the controller 25. The

clamp circuits

35 and 36 stabilize the voltages of the detection ports I/O1 and I/O2 of the controller 25 within a certain range, for example, within +0.6V of the dc power supply terminal VCC0, thereby protecting the detection ports I/O1 and I/O2 of the controller 25 from breakdown.

In the illustrated embodiment, the

sensing circuits

30, 31 include current limiting resistors R1, R2, R4, R5, with the current limiting resistors R1, R2, R4, R5 connected in series between the

switches

17, 18 and the clamping

circuits

35, 36. The current limiting resistors R1, R2, R4, and R5 limit the current flowing to the controller 25, and prevent the controller 25 from being burned out by excessive current. In one embodiment, the resistances of the current limiting resistors R1, R2, R4, and R5 are all 510 kohms, but are not limited thereto. In other embodiments, one or more than three current limiting resistors may be included, and the resistance of the current limiting resistors may be changed according to the actual application.

In one embodiment, the

detection circuit

30, 31 includes pull-down resistors R3, R6, wherein one end of each of the pull-down resistors R3, R6 is connected to the anode of the first diode D1, D3 and the controller 25, and the other end is grounded. In one embodiment, the

sensing circuit

30, 31 includes a sensing

signal output terminal

37, 38 through which the sensing signal is output, to which pull-down resistors R3, R6 are connected to the

switches

17, 18. Neutral line N is connected to dc supply terminal VCC0 of controller 25. When the

switches

17 and 18 are off, the pull-down resistors R3 and R6 keep the detection

signal output terminals

37 and 38 at low level. When the

switches

17, 18 are closed, the detection signal outputs 37, 38 are PWM waves (square waves) with a frequency equal to the mains frequency. In one embodiment, the pull-down resistors R3, R6 have a resistance of 10 kohms, but are not limited thereto. In one embodiment, the detection circuit includes a zero crossing detection circuit.

FIG. 5 is a flow diagram illustrating one embodiment of an identification method 50. Identification method 50 includes steps 51-58. In step 51, the detection ports I/O1 and I/O2 are provided as input ports.

In step 52, the detection ports I/O1, I/O2 are detected once per set time. That is, signals received by the first and second inspection ports I/O1 and I/O2, i.e., the first and second inspection ports I/O1 and I/O2 of the controller 25 are inspected at regular intervals as inspection signals. In one embodiment, the set time may be 2 ms.

In step 53, it is determined whether the detection ports I/O1 and I/O2 are at low level, that is, whether the detection signal is at low level. In step 54, if the I/O1 and I/O2 are low, the counter Cupcnt is incremented by 1 to a maximum value, for example, 255. Otherwise, the counter Cupcnt is decremented by 3. In step 55, the minimum is reduced to 0.

In step 56, it is determined whether the counter Cupcnt is greater than a count threshold. In one embodiment, the count threshold may be 60. If the counter Cupcnt is greater than the count threshold, it indicates that the first switch 17 and/or the second switch 18 are turned off, and the corresponding

component

12, 13 to be identified is not placed, step 57. If the counter Cupcnt is not greater than the count threshold, it indicates that the switch is turned on, and the corresponding

component

12, 13 to be identified is placed, step 58. The open and closed states of each switch can be detected separately through the above steps.

The following examples illustrate: to explain by way of example the determination of the open/close state of the first switch 17, it is assumed that the set time is 2ms, the maximum count value set by the counter is 255, and the count threshold value is 60. The mains frequency is 50Hz, and the mains period is 20 ms. When the component 12 to be identified is not in place or is not in place, the corresponding first switch 17 is switched off, the detection signal is always low, and the counter Cupcnt is incremented by 1 every 2ms until 60 is reached. The counter Cupcnt is added by 10 in a commercial power period. The set time multiplied by the count threshold is the total detection time, which is 2ms × 60 ms — 120ms, which is equal to 6 mains cycles, and indicates that the detection signals are all low for a longer time (120ms), thereby determining that the first switch 17 is turned off and the component 12 to be identified is not placed. After 120ms, step 56 is executed, in which the decision switch is opened and the component 12 to be identified is not placed.

When the component 12 to be identified is put in place, the first switch 17 is triggered to close, and the detection signal is a periodically changing square wave. The period of the square wave is equal to the period of the mains supply, which is also 20 ms. In one period, in the half period that the square wave is at a high level, the counter Cupcnt is added by 5 in total, and in the half period that the square wave is at a low level, the counter Cupcnt is subtracted by 15 in total, so that in one period, the counter Cupcnt is subtracted by 10 in total. In this example, the value subtracted by the counter Cupcnt during one mains cycle when the switch 17 is closed is equal to the value added by the counter Cupcnt when the switch 17 is open.

Similarly, the open/close state of the second switch 18 can be determined by the above method to determine whether the component 13 to be identified is placed on the host.

The above is just one example, and in other embodiments, other total detection times, set times, maximum count values and/or count threshold values, etc. may be set.

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

1. The utility model provides a cooking machine identification circuit for a plurality of subassemblies of treating of discerning cooking machine, its characterized in that, it includes:

a plurality of switches each including a first end (26) and a second end (28), the first ends (26) of the plurality of switches being electrically connected to a power source, at least one different one of the switches being triggered closed when a different one of the components (12) to be identified is in use;

a plurality of detection circuits (30) electrically connected to the second ends (28) of the corresponding switches, respectively, the detection circuits (30) detecting the open/closed states of the corresponding switches and outputting detection signals indicating the open/closed states of the switches; and

and the controller (25) is electrically connected with the plurality of detection circuits (30) and identifies the component (12) to be identified according to the detection signals.

2. The food processor identification circuit of claim 1, wherein: the food processor identification circuit (24) comprises a load driving circuit (33) electrically connected with a load (32), wherein the load driving circuit (33) is connected with the second end (28) of the switch in a plurality.

3. The food processor identification circuit of claim 1, wherein: the food processor identification circuit (24) comprises a direct current power supply end, the detection circuit (30) comprises a clamping circuit (35), the clamping circuit (35) is connected to the switch, the controller (25) and the direct current power supply end and comprises a first diode and a second diode, the anode of the first diode is connected with the cathode of the second diode, and the cathode of the first diode is connected to the direct current power supply end; the anode of the second diode is grounded, and the cathode of the second diode is connected to the controller (25).

4. The food processor identification circuit of claim 3, wherein: the detection circuit (30) comprises a current limiting resistor connected in series between the switch and the clamping circuit (35);

and/or the detection circuit (30) comprises a pull-down resistor, one end of the pull-down resistor is connected with the anode of the first diode and the controller (25), and the other end of the pull-down resistor is grounded.

5. The food processor identification circuit of claim 1, wherein: food processor identification circuit (24) includes switching power supply (34), switching power supply (34) electricity is connected to the power, and with controller (25) are connected, will the alternating current of power output converts the direct current into and gives controller (25) power supply, and is a plurality of first end (26) of switch connect in switching power supply (34) with between the power.

6. The food processor identification circuit of claim 1, wherein: the switch comprises a microswitch.

7. A food processor, its characterized in that, it includes:

a host (11);

-a plurality of components (12) to be identified, alternatively placed on said host (11); and

the food processor identification circuit of any one of claims 1 to 6.

8. The food processor of claim 7, wherein: the component (12) to be identified comprises at least one of a cup component (14) which is detachably assembled on the host (11) and a cup cover component (16) which can be covered on the cup component (14).

9. The food processor of claim 7, wherein: at least two of cooking machine identification circuit (24) the switch set up in host computer (11), and be in orthographic projection position on the cross section of host computer (11) staggers each other.

10. The food processor of claim 9, wherein: the main machine (11) comprises a containing cavity (21);

the switch comprises a first switch (17), a first through groove (22) with an upward opening and communicated with the accommodating cavity (21) is formed in the top end of the host (11), and the first switch (17) is installed in the accommodating cavity (21) and located below the first through groove (22); and/or the switch comprises a second switch (18), a second through groove (23) which is laterally opened and communicated with the accommodating cavity (21) is formed in the top end of the main machine (11), and the second switch (18) is installed in the accommodating cavity (21) and is positioned below the second through groove (23).