CN219578764U - Food processor circuit and food processor - Google Patents

Abstract

The utility model provides a material processing machine circuit and a food processor, wherein the food processor comprises a host machine and a stirring cup assembly detachably arranged on the host machine; the stirring cup assembly comprises a stirring cup body, a cutter seat detachably assembled on the stirring cup body, and a stirring cup cover capable of being covered on the stirring cup body; the tool apron comprises a first contact and a second contact; the processor circuit comprises a detection resistor, a detection control circuit and a controller. The detection resistor is arranged on the stirring cup body and/or the stirring cup cover. The detection control circuit is arranged on the host and comprises a direct-current power end and a grounding end. When the stirring cup assembly is arranged on the host machine and the stirring cup cover is covered on the stirring cup body, the detection resistor is electrically connected between the direct-current power supply end and the grounding end through the first contact and the second contact. The controller comprises a detection port, and the detection port is electrically connected with the detection control circuit; the controller is used for determining whether the stirring cup component is installed on the host machine and whether the stirring cup cover is covered or not according to the electric signals detected by the detection port. Thus improving the safety performance.

Description

Food processor circuit and food processor

Technical Field

The utility model relates to the field of small household appliances, in particular to a material processing machine circuit and a material processing machine.

Background

With the increasing level of living, many different types of food processing machines are presented on the market. The functions of the food processor mainly include, but are not limited to, the functions of making soybean milk, squeezing juice, making rice paste, mincing meat, shaving ice, making coffee, and/or preparing a facial mask.

Some food processors have a blade holder and a cup that are detachably assembled, the blade holder having two metal contacts that connect a conductive line in the cup and a conductive line in a main machine of the food processor. If the tool apron is installed in the host computer but the cup is not installed, external conductors act between two metal contacts, for example, fingers touch the two metal contacts, so that the two metal contacts are in short circuit, the controller can misjudge that the cooking cup is installed in place, at the moment, the cooking machine can be started, the cutter on the cutter disc rotates, and potential safety hazards exist.

Disclosure of Invention

The utility model provides a material processing machine circuit and a food processor, which improve the safety performance.

The utility model provides a material processor circuit which is applied to a food processor, wherein the food processor comprises a host machine and a stirring cup assembly detachably arranged on the host machine; the stirring cup assembly comprises a stirring cup body, a cutter seat detachably assembled on the stirring cup body and a stirring cup cover capable of being covered on the stirring cup body; the tool apron comprises a first contact and a second contact; the food processing circuit includes:

the detection resistor is arranged on the stirring cup body and/or the stirring cup cover;

the detection control circuit is arranged on the host and comprises a direct-current power supply end and a grounding end; when the stirring cup assembly is arranged on the host machine and the stirring cup cover is covered on the stirring cup body, the detection resistor is electrically connected between the direct current power supply end and the grounding end through the first contact and the second contact; a kind of electronic device with high-pressure air-conditioning system

The controller comprises a detection port, and the detection port is electrically connected with the detection control circuit; the controller is used for determining whether the stirring cup assembly is installed on the host machine or not and whether the stirring cup cover is covered or not according to the electric signals detected by the detection port.

In some embodiments of the utility model, the tool apron and the stirring cup body are detachably assembled, the processor circuit comprises a detection resistor arranged on the stirring cup body and/or the stirring cup cover, when the stirring cup assembly is arranged on the host machine and the stirring cup cover is covered on the stirring cup body, the detection resistor is electrically connected between the direct current power supply end and the grounding end, and a detection port of the controller is connected with the detection resistor through a detection control circuit, so that the controller can determine whether the stirring cup assembly is arranged on the host machine and the stirring cup cover is covered or not, misjudgment of the controller can be prevented, and safety is improved.

Further, the device comprises a driving circuit, wherein the driving circuit is electrically connected with a power supply and a load and is used for driving the load to work;

the detection control circuit comprises a power supply switch and a direct current power supply end, the power supply switch comprises a switch part and a controlled part, and the switch part of the power supply switch is electrically connected between the power supply and the driving circuit; the controller comprises a control port and a driving port, wherein the control port is electrically connected with the power supply switch, and the driving port is electrically connected with the driving circuit;

when the stirring cup assembly is installed on the host machine and the stirring cup cover is covered on the stirring cup body, the detection resistor and the controlled part of the power supply switch are connected in series between the direct current power supply end and the grounding end, and the controller is used for controlling the opening and closing of the power supply switch through the control port so as to control the on-off of the power supply and the driving circuit, and controlling the driving circuit through the driving port when the power supply switch is closed. In some embodiments, the controller can control the on-off of the power supply and the driving circuit by controlling the on-off of the power supply switch, so that the driving circuit can be powered on or powered off; and the controller can control the driving circuit through the driving port when the power supply switch is closed, so that whether the load works or not is controlled, and when the detection resistor is electrically connected between the direct current power supply end and the grounding end, the controller can control the load to work, and the safety is higher.

Further, the detection control circuit comprises a triode; the triode is electrically connected to the power supply switch, and the control port is electrically connected to the triode and used for controlling the on-off of the triode so as to control the on-off of the power supply switch;

when the stirring cup assembly is arranged on the host machine and the stirring cup cover is covered on the stirring cup body, the detection resistor is electrically connected between the triode and the grounding end; the detection port is electrically connected between the triode and the detection resistor. In some embodiments, the control port is electrically connected to the triode, and the controller can control the on-off of the triode to control the on-off of the power supply switch, so that the control is convenient, and the cost is low.

Further, the detection control circuit comprises a pull-down resistor; the base electrode of the triode is electrically connected with the control port; the pull-down resistor is electrically connected between the base and the emitter of the triode. In some embodiments, the transistor is prevented from being affected by noise signals to be turned on by mistake, so that the operation of the transistor is more reliable.

Further, the detection control circuit comprises a pull-up resistor, and the pull-up resistor is electrically connected between the direct current power supply end and the detection port; when the stirring cup assembly is installed on the host machine and the stirring cup cover is covered on the stirring cup body, the detection resistor and the pull-up resistor are connected in series between the direct current power supply end and the grounding end. In some embodiments, it may act as a current limiter, which may enable the detection port to detect the voltage value. When the stirring cup assembly is arranged on the host machine and the stirring cup cover is covered on the stirring cup body, the detection resistor and the pull-up resistor are connected in series between the direct current power supply end and the grounding end, so that the signal change detected by the detection port is more obvious, and the controller can judge conveniently.

Further, one end of the pull-up resistor is electrically connected with the direct current power supply end, the other end of the pull-up resistor is electrically connected with one end of the pull-down resistor, and the other end of the pull-down resistor is electrically connected with the base electrode of the triode. In some embodiments, so when cooking machine is in standby state, stirring bowl cover is detached from stirring cup and/or stirring cup subassembly is detached from the host computer, and the voltage value also can be detected to the detection port for the voltage value that the detection port detected is more obvious than the voltage value that the detection port detected when stirring cup subassembly was installed in the host computer, and stirring bowl cover lid closed in stirring cup, is convenient for distinguish.

Further, the detection control circuit comprises a first current limiting resistor; one end of the first current limiting resistor is electrically connected with the detection port, the other end of the first current limiting resistor is electrically connected with one end of the pull-up resistor, and the other end of the pull-up resistor is electrically connected with the direct current power supply end. In some embodiments, the first current limiting resistor is electrically connected to the detection port, so that the current of the branch where the first current limiting resistor is located can be limited, and the controller is prevented from being burnt out due to excessive current.

Further, the detection control circuit comprises a second current limiting resistor, one end of the second current limiting resistor is electrically connected to the control port, and the other end of the second current limiting resistor is electrically connected with the base electrode of the triode and one end of the pull-down resistor. In some embodiments, the second current limiting resistor is electrically connected to the control port, so that the magnitude of the current of the branch where the second current limiting resistor is located can be limited, and the controller is prevented from being burnt out due to excessive current.

Further, the detection control circuit includes a freewheeling diode in parallel with the power switch. In some embodiments, a freewheeling diode may be provided to function as a protection power switch.

The utility model provides a food processor, which comprises a host, a stirring cup assembly detachably arranged on the host, and a food processor circuit according to any one of the embodiments; the stirring cup assembly comprises a stirring cup body, a cutter seat detachably assembled on the stirring cup body, and a stirring cup cover capable of being covered on the stirring cup body.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the utility model as claimed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.

Fig. 1 is a plan exploded view of a food processor provided in one embodiment of the present utility model;

fig. 2 is an exploded perspective view of the food processor of fig. 1;

fig. 3 is a perspective view of a knife holder of the food processor of fig. 1;

fig. 4 is a schematic structural view of the food processor of fig. 1;

fig. 5 is a circuit block diagram of a food processing machine circuit according to an embodiment of the present utility model;

FIG. 6 is a circuit block diagram showing a portion of a circuit of a processor circuit provided to a host according to another embodiment of the present utility model;

FIG. 7 is a circuit diagram of the circuit of the food processor of FIG. 6;

fig. 8 to 12 are equivalent circuit diagrams of partial circuits of the detection control circuit of the food processor circuit of fig. 7.

Detailed Description

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

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" or "plurality" means two or more. Unless otherwise indicated, the terms "front," "rear," "lower," and/or "upper" and the like are merely for convenience of description and are not limited to one location or one spatial orientation. The word "comprising" or "comprises", and the like, means that elements or items appearing before "comprising" or "comprising" are encompassed by the element or item recited after "comprising" or "comprising" and equivalents thereof, and that other elements or items are not excluded. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. 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 or all possible combinations of one or more of the associated listed items.

The utility model provides a material processing machine circuit and a material processing machine. The food processor circuit and the food processor of the utility model are described in detail below with reference to the accompanying drawings. The features of the examples and embodiments described below may be combined with each other without conflict.

Fig. 1 is a plan exploded view of a food processor 100 provided in one embodiment of the present utility model; fig. 2 is an exploded perspective view of the food processor 100 of fig. 1; fig. 3 is a perspective view of the tool post 15 of the food preparation machine 100 of fig. 1. Referring to fig. 1, 2 and 3, the present utility model provides a food processing machine 100, wherein the food processing machine 100 comprises a main machine 11, a stirring cup assembly 12 detachably mounted on the main machine 11, and a food processing machine circuit 13. Food processing machine 100 includes a load 25, and load 25 may refer to a motor provided to main unit 11, a heating plate provided to stirring cup assembly 12, or the like. The mixing cup assembly 12 includes a mixing cup 14, a blade holder 15 removably assembled to the mixing cup 14, and a mixing cup lid 16 that is adapted to be closed over the mixing cup 14. The knife holder 15 is provided with a stirring knife 17. The output shaft of the motor is connected with the stirring blade 17, and the stirring blade 17 can be driven to rotate by the rotation of the motor so as to realize the stirring of food materials in the stirring cup body 14. The tool apron 15 can be separated from the stirring cup body 14 and is independently assembled on the main machine 11. The holder 15 comprises a first contact 18 and a second contact 19.

Fig. 4 is a schematic diagram of a structure of the food processor 100 in fig. 1. Referring to fig. 4, in the present embodiment, when the tool holder 15 is mounted on the host 11, the first contact 18 and the second contact 19 may be electrically connected to a circuit board 31 disposed in the host 11, respectively. When the blade holder 15 is mounted to the stirring cup 14, the first contact 18 and the second contact 19 of the blade holder 15 may be electrically connected to two signal lines 32 within the stirring cup 14, respectively. A shorting member 20 is disposed within the mixing bowl cover 16. When the mixing bowl cover 16 is closed, the shorting member 20 within the mixing bowl cover 16 can connect two signal wires 32 within the mixing bowl 14. So that the wiring board 31, the first contact 18, the signal line 32, the shorting member 20, and the second contact 19 form a loop. The shorting member 20 may be a wire, a metallic conductive sheet, or other conductive member.

Fig. 5 is a circuit block diagram of a food processing circuit 13 according to an embodiment of the present utility model. The food processor circuit 13 may be applied to the food processor 100. Referring to fig. 5, the food processing circuit 13 includes a detection resistor RL, a detection control circuit 21, and a controller 22. The sense resistor RL is provided to the mixing cup 14 and/or the mixing cup lid 16. The detection resistor RL may be provided in the stirring cup 14 or in the stirring cup cover 16. When the detection resistor RL is provided to the stirring cup 14, the detection resistor RL may be connected in series to the signal line 32 in the stirring cup 14. When the sensing resistor RL is provided on the whisking cup cover 16, the sensing resistor RL may be connected in series with the shorting member 20.

The detection control circuit 21 is disposed on the host 11 and includes a dc power terminal VDD and a ground terminal GND. When the stirring cup assembly 12 is mounted on the main machine 11 and the stirring cup cover 16 is covered on the stirring cup body 14, the detection resistor RL is electrically connected between the dc power supply terminal VDD and the ground terminal GND through the first contact 18 and the second contact 19. When the mixing cup assembly 12 is mounted on the main machine 11 and the mixing cup cover 16 is covered on the mixing cup body 14, the detection control circuit 21 can output a first electric signal. In this embodiment, when the stirring cup cover 16 is opened, or the stirring cup assembly 12 is detached from the host 11, or the stirring cup 14 is separated from the tool holder 15 but the tool holder 15 is assembled to the host 11, the detection resistor RL is not electrically connected between the dc power supply terminal VDD and the ground terminal GND, the two connection terminals of the detection control circuit 21 are electrically connected to each other, and the second electrical signal output by the detection control circuit 21 is detected. When only the tool post 15 is mounted on the main unit 11 and good conductors such as water stain, metal test fingers and the like are located between the first contact 18 and the second contact 19, the detection resistor RL is not electrically connected between the dc power supply terminal VDD and the ground terminal GND, and the two connection terminals of the detection control circuit 21 electrically connected to the two ends of the detection resistor RL are turned on, and the detection control circuit 21 outputs a third electrical signal. Wherein the first electrical signal, the second electrical signal, and the third electrical signal are all different. The electrical signal output by the detection control circuit 21 in this way may represent different states.

The controller 22 includes a detection port cup_ad electrically connected to the detection control circuit 21. The controller 22 may receive the electric signal output from the detection control circuit 21 and determine the state of the food processor according to the electric signal. When the detection resistor RL is electrically connected between the dc power supply terminal VDD and the ground terminal GND, the detection port cup_ad of the controller 22 detects the first electrical signal; when the detection resistor RL is not electrically connected between the dc power supply terminal VDD and the ground terminal GND, the detection port cup_ad of the controller 22 detects the second electrical signal; the controller 22 is configured to determine whether the mixing CUP assembly 12 is mounted to the main machine 11 and whether the mixing CUP lid 16 is closed according to the electrical signal detected by the detection port cup_ad.

In some embodiments of the present utility model, controller 22 may determine whether blender CUP assembly 12 is mounted to host 11 and blender CUP cover 16 is closed based on the electrical signal detected by detection port cup_ad. When the stirring CUP assembly 12 is mounted on the main unit 11 and the stirring CUP cover 16 is covered on the stirring CUP body 14, the detection resistor RL is electrically connected between the dc power supply end VDD and the ground end GND, and the detection port cup_ad of the controller 22 is connected to the detection resistor RL through the detection control circuit 21. The controller 22 detects the first electric signal, and the controller 22 can determine that the stirring CUP assembly 12 is mounted on the host 11 and the stirring CUP cover 16 covers the stirring CUP body 14 according to the first electric signal detected by the detection port cup_ad, at this time, the controller 22 can control the load 25 to work, so that misjudgment of the controller 22 can be prevented, and safety performance is improved.

Fig. 6 is a circuit block diagram of a part of a circuit of the food processing machine circuit 13 provided in the host 11 according to another embodiment of the present utility model. Referring to fig. 6, in some embodiments, the food processing machine circuit 13 includes a drive circuit 23, and the drive circuit 23 is electrically connected to a power source 24 and a load 25 for driving the load 25 to operate. The power source 24 may be an ac power source (e.g., mains), and the driving circuit 23 may drive the load 25 when the power source 24 supplies power to the driving circuit 23. The load 25 may include a motor or a heating assembly. The detection control circuit 21 includes a power supply switch 26 and a dc power supply terminal VCC, the power supply switch 26 includes a switching section 33 and a controlled section 34, and the switching section 33 of the power supply switch 26 is electrically connected between the power supply 24 and the drive circuit 23. When the switching section 33 of the power supply switch 26 is closed, the power supply 24 may supply power to the drive circuit 23. When the switching section 33 of the power supply switch 26 is opened, the drive circuit 23 is powered off. The power supply switch 26 may be a relay, the switch portion 33 may be a switch of the relay, and the controlled portion 34 may be a coil of the relay. When the coil of the relay is powered on, the switch of the relay is closed, i.e. the power supply switch 26 is closed, and when the coil of the relay is powered off, the switch of the relay is opened, i.e. the power supply switch 26 is opened. The rated voltage of the relay is lower than the voltage of the direct current power supply end VCC for supplying power to the relay, for example, when the voltage of the direct current power supply end VCC is 12V, the relay can select the relay with the rated voltage of 9V, and the action current and the rated current of the relay can be met.

The controller 22 includes a control port RLY electrically connected to the controlled portion 34 of the power supply switch 26 and a drive port MOTOR electrically connected to the drive circuit 23. When the stirring cup assembly 12 is mounted on the main machine 11 and the stirring cup cover 16 is covered on the stirring cup body 14, the detection resistor RL and the controlled portion 34 of the power supply switch 26 are connected in series between the dc power supply end VCC and the ground end GND, and the controller 22 is configured to control the power supply switch 26 to be turned on or off through the control port rli so as to control the power supply 24 to be turned on or off with the driving circuit 23, and to control the driving circuit 23 through the driving port MOTOR when the power supply switch 26 is turned on. When the stirring cup cover 16 is opened, or the stirring cup body 14 is separated from the cutter holder 15, but the cutter holder 15 is positioned on the host 11, or the stirring cup assembly 12 is detached from the host 11, the detection resistor RL is disconnected from the controlled part 34 of the power supply switch 26, or the detection resistor RL is connected with the controlled part 34 of the power supply switch 26, or the detection resistor RL is disconnected from the controlled part of the power supply switch 26, so that the power supply switch 26 is powered off in hardware to be disconnected, and the driving circuit 23 is powered off, and the load 25 is powered off to be inoperable, thereby ensuring safety. The controller 22 can control the on/off of the power supply switch 26 to control the on/off of the power supply 24 and the driving circuit 23, so that the driving circuit 23 can be powered on or powered off; and the controller 22 can control the driving circuit 23 through the driving port MOTOR when the power supply switch 26 is closed, so as to control whether the load 25 works, so that when the detection resistor RL is electrically connected between the DC power supply end VDD and the ground end GND, the controller 22 can control the load 25 to work, and the safety is higher. The dc power supply terminal VDD and the dc power supply terminal VCC may be different terminals, have different voltages, or may be the same terminal, and have the same voltage.

Fig. 7 is a circuit diagram of the food processor circuit shown in fig. 5. Referring to fig. 7, in some embodiments, the food processor circuit 13 includes a power circuit 27. The power supply circuit 27 may be connected to an ac power source (e.g., mains) for converting ac strong power to dc weak power for powering the controller 22 and the power switch 26. The dc power supply terminal VDD and the dc power supply terminal VCC are power supply output terminals of the power supply circuit 27.

In some embodiments, detection control circuit 21 includes transistor Q1. The transistor Q1 may be an NPN transistor or a PNP transistor. Transistor Q1 may act as a switch. The triode Q1 is electrically connected to the power supply switch 26, and the control port RLY is electrically connected to the triode Q1 for controlling the on-off of the triode Q1 so as to control the on-off of the power supply switch 26, thereby being convenient to control and low in cost. In this embodiment, the transistor Q1 is an NPN transistor, wherein the base 28 of the transistor Q1 is connected to the control port rli, the emitter 29 of the transistor Q1 is connected to the ground GND, and the collector 30 of the transistor Q1 is connected to the power supply switch 26. Wherein, the electric signal of the control port RLY can control the on-off of the triode Q1. When the control port rle outputs a high level, the transistor Q1 is turned on, so that the dc power supply terminal VCC can supply power to the relay, and the power supply switch 26 can be turned on. When the control port rle outputs a low level, transistor Q1 is turned off, causing power to be turned off at power switch 26 and power switch 26 to be turned on. The control port rle is electrically connected to the transistor Q1, so that the controller 22 can control the on/off of the transistor Q1 to control the on/off of the power switch 26. The circuit has high implementation performance. Wherein, when the food processor 100 is in the standby state, the control port rliy outputs a low level; when the food processor 100 is in an operation state, the control port rliy outputs a high level. When the stirring cup assembly 12 is mounted on the main unit 11 and the stirring cup cover 16 is covered on the stirring cup 14, the detection resistor RL is electrically connected between the triode Q1 and the ground GND. The detection port cup_ad is electrically connected between the transistor Q1 and the detection resistor RL. The controller 22 can determine whether the stirring CUP assembly 12 is mounted on the host 11 and the stirring CUP cover 16 is covered according to the electric signal detected by the detection port cup_ad, and when the detection resistor RL is not electrically connected between the triode Q1 and the ground end GND, the driving circuit 23 is powered off, so that when the stirring CUP cover 16 is opened, the load 25 can stop running, thereby improving safety.

In some embodiments, the detection control circuit 21 includes a freewheeling diode D1 in parallel with the power switch 26. The provision of the freewheel diode D1 may function as a protection for the power supply switch 26.

In some embodiments, the detection control circuit 21 includes a pull-down resistor R1. The base 28 of transistor Q1 is electrically connected to control port rliy. The high level or the low level may be input to the base 28 through the control port rli to control the on and off of the transistor Q1. The pull-down resistor R1 is electrically connected between the base 28 and the emitter 29 of the transistor Q1. Therefore, the triode Q1 can be prevented from being influenced by noise signals to be conducted by mistake, and the triode Q1 can work more reliably.

In some embodiments, the detection control circuit 21 includes a pull-up resistor R2, and the pull-up resistor R2 is electrically connected between the dc power supply terminal VDD and the detection port cup_ad. Can play a role of current limiting, and can enable the detection port cup_ad to detect a voltage value. Wherein the voltage value may be converted into an AD value. When the stirring cup assembly 12 is mounted on the main machine 11 and the stirring cup cover 16 is covered on the stirring cup body 14, the detection resistor RL and the pull-up resistor R2 are connected in series between the DC power supply end VDD and the ground end GND. When the stirring CUP assembly 12 is mounted on the main machine 11 and the stirring CUP cover 16 is covered on the stirring CUP body 14, the detection resistor RL and the pull-up resistor R2 are connected in series between the DC power supply end VDD and the ground end GND, so that the signal change detected by the detection port CUP_AD is more obvious, and the judgment by the controller is facilitated.

In some embodiments, one end of the pull-up resistor R2 is electrically connected to the dc power supply terminal VDD, the other end of the pull-up resistor R2 is electrically connected to one end of the pull-down resistor R1, and the other end of the pull-down resistor R1 is electrically connected to the base 28 of the transistor Q1. Thus, when the food processor 100 is in the standby state, the stirring CUP cover 16 is detached from the stirring CUP body 14 and/or the stirring CUP assembly 12 is detached from the host computer 11, and the voltage value can be detected by the detection port cup_ad, so that the voltage value detected by the detection port cup_ad is more obvious compared with the voltage value detected by the detection port cup_ad when the stirring CUP assembly 12 is mounted on the host computer 11 and the stirring CUP cover 16 is covered on the stirring CUP body 14, and the detection port cup_ad is convenient to distinguish.

In some embodiments, the detection control circuit 21 includes a first current limiting resistor R3. One end of the first current limiting resistor R3 is electrically connected to the detection port cup_ad, the other end is electrically connected to one end of the pull-up resistor R2, and the other end of the pull-up resistor R2 is electrically connected to the dc power supply terminal VDD. The first current limiting resistor R3 is electrically connected to the detection port cup_ad, so that the magnitude of the branch current where the first current limiting resistor R3 is located can be limited, and the controller 22 is prevented from being burnt out due to excessive current.

In some embodiments, the detection control circuit 21 includes a second current limiting resistor R4, where one end of the second current limiting resistor R4 is electrically connected to the control port rli, and the other end is electrically connected to the base 28 of the transistor Q1 and one end of the pull-down resistor R1. The second current limiting resistor R4 is electrically connected with the control port rli, so that the magnitude of the branch current where the second current limiting resistor R4 is located can be limited, and the controller 22 is prevented from being burnt out due to excessive current.

Fig. 8 to 12 are equivalent circuit diagrams showing a part of the circuit of the detection control circuit 21 of the food processor circuit 13 in fig. 7. Referring to fig. 8 to 12, in the present embodiment, the controller 22 is configured to determine whether the mixing CUP assembly 12 is mounted on the main unit 11 and the mixing CUP cover 16 is covered according to the AD value converted from the voltage value detected by the detection port cup_ad.

When the food processor 100 is in the standby state, the control port rliy outputs a low level. When the AD value read back by the controller 22 is within the standby AD range, the stirring cup assembly 12 is considered to be mounted on the main machine 11, and the stirring cup cover 16 is covered on the stirring cup body 14, so that the load 25 can be allowed to run without safety risks. When the AD value read back by the controller 22 is not within the standby AD range, it is determined that the assembly of the food processor 100 is incomplete and the load 25 is not allowed to operate. Wherein the standby AD range may be between 150 and 350.

When the mixing bowl cover 16 is removed from the mixing bowl 14 and/or the mixing bowl assembly 12 is removed from the main machine 11, equivalent to the circuit shown in FIG. 8, the AD value read back by the controller 22 is

When the mixing bowl assembly 12 is mounted to the main machine 11 and the mixing bowl cover 16 is closed to the mixing bowl 14, the AD value read back by the controller 22 is equivalent to the circuit shown in FIG. 9

When only the tool holder 15 is mounted on the main body 11 and good conductors such as water spots, metal test fingers, etc. are located between the first contact 18 and the second contact 19, equivalent to the circuit shown in fig. 10, the AD value read back by the controller 22 is close to 0. Thus, by reading the AD value, it is determined whether the stirring cup assembly 12 is mounted on the main machine 11 and the stirring cup cover 16 is covered, so that the bare holder 15 can be prevented from starting the load 25.

When the food processor 100 is in an operation state, the control port rliy outputs a high level. When the AD value read back by the controller 22 is within the operational AD range, it is considered that the blender cup assembly 12 is mounted to the host computer 11 and the blender cup lid 16 is covered by the blender cup 14, allowing the load 25 to operate without safety risk. When the AD value read back by the controller 22 is not within the operation AD range, the stirring cup cover 16 may be considered to be detached from the stirring cup 14, and the load 25 may not be allowed to continue to operate, at which time the food processor 100 may be switched to the standby state. Wherein the operational AD range may be between 550 and 750.

When the stirring cup assembly 12 is mounted on the main machine 11 and the stirring cup cover 16 is covered on the stirring cup body 14, the circuit is equivalent to that shown in fig. 11, the triode Q1 is opened, the coil of the relay is powered on, the power supply switch 26 is closed, and the power supply 24 can supply power to the driving circuit 23. At this time, the AD value read back by the controller 22 is Wherein, rrl is the coil equivalent resistance of the relay.

When the mixing bowl 16 is removed from the mixing bowl 14, an AD value read back by the controller 22 is approximately K, equivalent to the circuit shown in FIG. 12.

Setting the standby AD range and the operating AD range may compare the AD value read back by the controller 22 with the corresponding range when the food processor 100 is in the standby state and the operating state, respectively, to determine whether to allow the load to be started. Thus, the load is allowed to start when the food processing machine 100 is completely assembled, and the safety performance of the food processing machine 100 can be improved.

Other embodiments of the utility model will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This utility model is intended to cover any variations, uses, or adaptations of the utility model following, in general, the principles of the utility model and including such departures from the present disclosure as come within known or customary practice within the art to which the utility model pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the utility model being indicated by the following claims.

It is to be understood that the utility model is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the utility model is limited only by the appended claims.

Claims (10)

1. A material arranging machine circuit is characterized by being applied to a food arranging machine, wherein the food arranging machine comprises a main machine (11) and a stirring cup assembly (12) detachably arranged on the main machine (11); the stirring cup assembly (12) comprises a stirring cup body (14), a cutter holder (15) detachably assembled on the stirring cup body (14), and a stirring cup cover (16) capable of being covered on the stirring cup body (14); the tool holder (15) comprises a first contact (18) and a second contact (19); the food processing circuit includes:

the detection resistor is arranged on the stirring cup body (14) and/or the stirring cup cover (16);

the detection control circuit (21) is arranged on the host (11) and comprises a direct current power supply end and a grounding end; when the stirring cup assembly (12) is mounted on the host machine (11) and the stirring cup cover (16) covers the stirring cup body (14), the detection resistor is electrically connected between the direct current power supply end and the grounding end through the first contact (18) and the second contact (19); a kind of electronic device with high-pressure air-conditioning system

A controller (22) including a detection port electrically connected to the detection control circuit (21); the controller (22) is used for determining whether the stirring cup assembly (12) is mounted on the host machine (11) and whether the stirring cup cover (16) is covered or not according to the electric signals detected by the detection port.

2. The food processor circuit according to claim 1, comprising a drive circuit (23), the drive circuit (23) being electrically connected to a power source (24) and a load (25) for driving the load (25) into operation;

the detection control circuit (21) comprises a power supply switch (26) and a direct current power supply end, the power supply switch (26) comprises a switch part (33) and a controlled part (34), and the switch part (33) of the power supply switch (26) is electrically connected between the power supply (24) and the driving circuit (23); the controller (22) comprises a control port and a drive port, wherein the control port is electrically connected with the power supply switch (26), and the drive port is electrically connected with the drive circuit (23);

when the stirring cup assembly (12) is installed on the host machine (11) and the stirring cup cover (16) is covered on the stirring cup body (14), the detection resistor and the controlled part (34) of the power supply switch (26) are connected in series between the direct current power supply end and the grounding end, and the controller (22) is used for controlling the opening and closing of the power supply switch (26) through the control port so as to control the on-off of the power supply (24) and the driving circuit (23), and controlling the driving circuit (23) through the driving port when the power supply switch (26) is closed.

3. The food processor circuit according to claim 2, wherein the detection control circuit (21) comprises a transistor; the triode is electrically connected to the power supply switch (26), and the control port is electrically connected to the triode and used for controlling the on-off of the triode so as to control the on-off of the power supply switch (26);

when the stirring cup assembly (12) is installed on the host machine (11) and the stirring cup cover (16) covers the stirring cup body (14), the detection resistor is electrically connected between the triode and the grounding end; the detection port is electrically connected between the triode and the detection resistor.

4. A food processor circuit according to claim 3, wherein the detection control circuit (21) comprises a pull-down resistor; the base electrode of the triode is electrically connected with the control port; the pull-down resistor is electrically connected between the base and the emitter of the triode.

5. The food processor circuit according to claim 4, wherein the detection control circuit (21) comprises a pull-up resistor electrically connected between the dc power supply terminal and the detection port; when the stirring cup assembly (12) is installed on the host machine (11) and the stirring cup cover (16) is covered on the stirring cup body (14), the detection resistor and the pull-up resistor are connected in series between the direct current power supply end and the grounding end.

6. The food processor circuit of claim 5, wherein one end of the pull-up resistor is electrically connected to the dc power supply, the other end of the pull-up resistor is electrically connected to one end of the pull-down resistor, and the other end of the pull-down resistor is electrically connected to the base of the triode.

7. The food processor circuit according to claim 5, wherein the detection control circuit (21) comprises a first current limiting resistor; one end of the first current limiting resistor is electrically connected with the detection port, the other end of the first current limiting resistor is electrically connected with one end of the pull-up resistor, and the other end of the pull-up resistor is electrically connected with the direct current power supply end.

8. The food processor circuit according to claim 4, wherein the detection control circuit (21) comprises a second current limiting resistor, one end of the second current limiting resistor is electrically connected to the control port, and the other end is electrically connected to the base of the triode and one end of the pull-down resistor.

9. Food processor circuit according to claim 2, characterized in that the detection control circuit (21) comprises a freewheel diode in parallel with the power supply switch (26).

10. A food processor characterized by comprising a main machine (11), a stirring cup assembly (12) detachably mounted to the main machine (11), and a food processor circuit (13) according to any one of claims 1-9; the stirring cup assembly (12) comprises a stirring cup body (14), a cutter holder (15) detachably assembled on the stirring cup body (14), and a stirring cup cover (16) capable of being covered on the stirring cup body (14).