CN213757924U - Food processer working circuit and food processer - Google Patents

Abstract

The utility model provides a cooking machine working circuit and cooking machine. The processor working circuit comprises a controller, an anti-overflow detection circuit and a grounding control circuit. The controller has a cup identification port, an anti-spill detection port, and a ground control port. The input end of the anti-overflow detection circuit is used for being electrically connected with a preset pin of a cup seat coupler on the cup body assembly, and the output end of the anti-overflow detection circuit is connected to the anti-overflow detection port. The ground control circuit is connected between the input end of the anti-overflow detection circuit and ground and is connected to the ground control port. When the cup body identification port identifies that the cup body assembly is not heated, the controller controls the grounding control circuit to be conducted to the ground through the grounding control port, so that the anti-overflow detection circuit is bypassed; when the cup body control identification port identifies that the cup body assembly with heating is available, the controller controls the grounding control circuit to be disconnected from the ground through the grounding control port, so that the preset pin of the cup seat coupler is connected to the anti-overflow detection port through the anti-overflow detection circuit.

Description

Food processer working circuit and food processer

Technical Field

The utility model relates to the technical field of household appliances, especially, relate to a cooking machine working circuit and cooking machine.

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, grinding dry powder, squeezing juice, making minced meat, shaving ice, making coffee, preparing beauty mask for women and the like. The food processor can comprise a soybean milk machine, a stirrer, a wall breaking machine and the like. The different kinds of functions enrich the life of people.

In present cooking machine, it is general to hope that cup body assembly of multiple different grade type can general a cooking machine base. The top of the processor base is provided with a base coupler, the bottom of each cup body component is provided with a cup seat coupler, and the cup seat couplers can be electrically plugged with the base couplers. Fig. 1 shows a pin diagram of a cup holder coupler 81 with a heated cup assembly of the prior art. As shown in fig. 1, the CUP coupler 81 with heating has a live wire pin L, a zero line pin N, a CUP cover detection pin CUP, an anti-overflow probe pin Flow, a ground pin GND and a temperature detection pin NTC, wherein the live wire pin L and the zero line pin N are used for realizing the heating function, the CUP cover detection pin CUP and the ground pin GND are connected through a CUP cover switch S1 for judging the opening and closing of the CUP cover, a built-in CUP judgment resistor R11 is connected between the temperature detection pin NTC and the ground pin GND for identifying the type of the CUP, and the anti-overflow probe pin Flow and the ground pin GND are used for realizing the anti-overflow detection function. Fig. 2 discloses a pin diagram of another prior art cup and holder coupler 82 without a heated cup assembly. As shown in fig. 2, the CUP-holder coupler 82 without heating has a first CUP lid detection pin CUP1, a second CUP lid detection pin CUP2, a signal ground pin SGND, and a temperature detection pin NTC, wherein the first CUP lid detection pin CUP1 and the second CUP lid detection pin CUP2 are connected through a CUP lid switch S2 for determining opening and closing of the CUP lid, and a built-in CUP determination resistor R12 is connected between the temperature detection pin NTC and the signal ground pin SGND for identifying the type of the CUP.

The cup body assembly without heating is suitable for the food processor base with an isolation circuit and a non-isolation circuit. In the food processor base of the isolation circuit, a signal ground pin SGND is a real ground wire, and a human body is free of electric shock hazard when in contact. However, if the signal ground pin SGND is a neutral line or a live line in the food processor base that is not an isolated circuit, there is a risk of electric shock when a human body touches the base.

In addition, lid switches S1 and S2 are provided on the top of the cup assembly, and a person may touch the lid switches, and therefore, if the lid switches without the heated cup assembly are connected in the manner with the heated cup assembly, a person may touch the signal ground pin SGND with electricity, which may cause a safety hazard.

However, if the heated cup body assembly and the unheated cup body assembly are to be used on the same food processor base, two more pins need to be added on the basis that the base coupler on the food processor base is matched with the existing pin number of the heated cup coupler 81, so that the volume is increased, and the cost is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cooking machine working circuit and cooking machine need not additionally to increase the pin number of base coupler, and the security performance is good.

An aspect of the utility model provides a cooking machine working circuit is applied to in the cooking machine. The food processor is provided with different types of cup body assemblies, and the different types of assemblies comprise cup body assemblies with heating and cup body assemblies without heating. The processor working circuit comprises a controller, an anti-overflow detection circuit and a grounding control circuit. The controller has a cup identification port, an anti-spill detection port, and a ground control port. The anti-overflow detection circuitry has input and output, the input be used for with predetermined pin electric connection of cup coupler on the cup body assembly, the output is connected to the controller the anti-overflow detection port is used for detecting eat the condition of spilling over of material in the cup body assembly of cooking machine. The ground control circuit is connected between the input terminal of the anti-overflow detection circuit and ground, and the ground control circuit is connected to the ground control port of the controller. Wherein, when the cup identification port of the controller identifies that the cup assembly is a non-heated cup assembly, the controller controls the ground control circuit to conduct to ground through the ground control port such that the overfill prevention detection circuit is bypassed; when the cup identification port of the controller identifies a heated cup assembly, the controller controls the ground control circuit to be disconnected from ground through the ground control port so that the predetermined pin of the cup holder coupler is connected to the anti-overflow detection port of the controller through the anti-overflow detection circuit.

Further, when the cup identification port identifies that the cup assembly is a non-heated cup assembly, the controller controls the ground control port to output a first level signal, and the ground control circuit is conducted to the ground based on the first level signal; when the cup body identification port identifies that the cup body assembly with heating is arranged, the controller controls the grounding control port to output a second level signal, and the grounding control circuit is disconnected with the ground based on the second level signal. Therefore, whether the grounding control circuit is conducted to the ground or not is controlled by the output level signal of the grounding control port.

Further, the ground control circuit comprises a triode, a base of the triode is connected to the ground control port of the controller, a collector of the triode is electrically connected with the input end of the anti-overflow detection circuit, an emitter of the triode is connected to the ground, and the controller controls whether the ground control circuit is conducted to the ground or not by controlling the conduction or disconnection of the triode. Thus, the ground control circuit is controlled by controlling the transistor.

Further, the base of the triode is connected to the ground control port of the controller through a first resistor. The first resistor may function to limit current.

Further, a second resistor is arranged between the base electrode and the emitting electrode of the triode. The second resistor can play a role in preventing false triggering, and can effectively ensure that the triode can be reliably cut off when the input end is suspended.

Further, the food processor working circuit further comprises a first capacitor, and the first capacitor is connected between the input end of the anti-overflow detection circuit and the ground. The first capacitance may function as a filter.

Further, the controller still has detection and drive port, cooking machine operating circuit still includes bowl cover detection circuitry, bowl cover detection circuitry is connected to the controller detect and drive port for detect the state of opening and shutting of the bowl cover subassembly of cooking machine. Therefore, the cup cover assembly can be used for detecting whether the cup cover assembly covers the cup body assembly or not.

Further, the food processor working circuit further comprises a load driving circuit, the load driving circuit is connected between a power supply and a load of the food processor, and the load driving circuit is connected to the detection and driving port of the controller, wherein when the controller detects that the cup cover assembly is covered through the detection and driving port, the controller controls the load driving circuit to enable the power supply to be connected to the load through the detection and driving port. Therefore, the uncovering protection function of the cup cover assembly can be realized.

Another aspect of the utility model provides a cooking machine, it include cooking machine base, detachably install in cup subassembly and the detachably lid of the different grade type on the cooking machine base fit cup cover subassembly on the cup subassembly. The cooking machine base comprises the cooking machine working circuit, and the cooking machine base is provided with a base coupler. The cup body assembly of different grade type is including the cup body assembly who takes the heating and the cup body assembly who does not take the heating, cup body assembly include the cup and install in be used for holding the cup of eating the material on the cup, the cup has the cup coupler, the cup coupler with but the electricity of base coupler is pegged graft, the cup coupler passes through the base coupler electricity is connected to in the cooking machine work circuit.

Further, the base coupler has a first pin, a second pin, a third pin, a fourth pin, a fifth pin, and a sixth pin, the cup seat coupler of the cup body component with heating is provided with a zero line pin, a live line pin, a cup cover detection pin, an anti-overflow probe pin, a ground pin and a temperature detection pin which can be respectively inserted into the first pin, the second pin, the third pin, the fourth pin, the fifth pin and the sixth pin, the cup seat coupler without the heated cup body component is provided with a cup cover detection pin, a second cup cover detection pin, a signal ground pin and a temperature detection pin which can be respectively inserted into the third pin, the fourth pin, the fifth pin and the sixth pin, wherein for the heated cup assembly, the predetermined pin of the cup coupler is the anti-spill probe pin; for the unheated cup assembly, the predetermined pin of the cup holder coupler is the second lid detect pin. Thus, a base coupler using six pins can be retained without increasing the pin count of the base coupler.

The utility model discloses a cooking machine working circuit is through setting up ground connection control circuit, and whether the controller can come the selectivity to control ground connection control circuit according to cup body assembly's type and switch on ground to, make the base coupler on the cooking machine base both can the adaptation take the cup body assembly of heating, also can the adaptation not take the cup body assembly of heating, thereby can use same cooking machine base to be suitable for the cup body assembly of different grade type, have good commonality, can reduce cost.

The utility model discloses a cooking machine working circuit need not to increase the pin number of base coupler on the cooking machine base through setting up the ground connection control circuit to, through setting up the ground connection control circuit, can realize taking the normal anti-overflow of the cup subassembly of heating to detect, simultaneously, can effectively ensure again to take the security performance in the cup subassembly use of heating.

Drawings

FIG. 1 is a pin diagram of a cup holder coupler on a heated cup assembly of the prior art;

FIG. 2 is a pin diagram of a cup holder coupler on another prior art unheated cup assembly;

fig. 3 is a perspective view of a base of the food processor according to an embodiment of the present invention;

fig. 4 is a top view of the food processor base shown in fig. 3;

FIG. 5 is a perspective view of a cup assembly and lid assembly in accordance with an embodiment of the present invention;

FIG. 6 is a bottom view of the cup assembly and lid assembly shown in FIG. 5;

fig. 7 is a pin diagram of a cup holder coupler on a heated cup assembly in accordance with an embodiment of the present invention;

FIG. 8 is a pin diagram of a cup holder coupler on a non-heated cup assembly according to another embodiment of the present invention;

fig. 9 is a schematic diagram of an operating circuit of a food processor according to an embodiment of the present invention.

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 invention. Rather, they are merely examples of apparatus consistent with certain aspects of the invention, 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 invention. 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 "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of 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 "a number" means two or more. Unless otherwise indicated, "front", "rear", "lower" and/or "upper" and the like are for convenience of description and are not limited to one position or one spatial orientation. 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 the 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.

It should be noted that, in order to better embody the innovative features of the present invention, only the structural features closely related to the creation point of the present invention are shown and described in the drawings and the description thereof, and other less related structural features or other existing structural features are omitted or outlined. However, this does not mean that the food processor operating circuit or the food processor of the present invention does not necessarily include these other structural features, and the food processor operating circuit or the food processor of the present invention may include other structural features necessary for realizing the basic functions of the food processor.

The utility model provides a food processor, food processor can for example include but not limited to mixer, broken wall machine or juice extractor etc.. The cooking machine comprises a cooking machine base, cup body assemblies of different types and a cup cover assembly. Fig. 3 shows a perspective view of the food processor base 10 according to an embodiment of the present invention, and fig. 4 shows a top view of the food processor base 10 shown in fig. 3. As shown in fig. 3 and 4, in one embodiment, the food processor base 10 is in the form of a stand. The food processor base 10 can provide electric energy to control and drive the food processor to work. A motor (not shown) and a control board 13 (shown in fig. 9) are mounted in the food processor base 10. The top of the food processor base 10 may be provided with a base coupler 11. The base coupler 11 may be electrically connected to the control board 13 by a wire or a metal conductor, for example.

FIG. 5 illustrates a perspective view of cup assembly 20 and lid assembly 30, and FIG. 6 illustrates a bottom view of cup assembly 20 and lid assembly 30 shown in FIG. 5. As shown in fig. 5 and 6, different types of cup assemblies 20 can be removably mounted to the processor base 10, wherein one type of cup assembly 20, such as a heated cup assembly 20, is shown in fig. 5. Different types of cup assemblies 20 include heated cup assemblies 20 and unheated cup assemblies 20. The heated cup assembly 20 may be, for example, a hot cup assembly having a stirring blade (not shown) and a heating plate (not shown) and provided with an anti-overflow probe (not shown), and may be used for stirring and heating food materials to make hot beverages, such as making soybean milk, rice paste, etc. The unheated cup assembly 20 may be, for example, a cold cup assembly having a stirring blade, and may be used to whip food materials, to make cold beverages, such as juice, milkshakes, and the like. Alternatively, the unheated cup assembly 20 may be, for example, a dry grinding cup assembly having a grinding blade that may be used to grind dry powders and the like.

The cup assembly 20 includes a cup 21 and a cup holder 22. The cup body 21 is installed in the cup base 22, and the cup body 21 is assembled on the food processor base 10 through the cup base 22. The cup body 21 has a receiving cavity (not shown) for receiving food therein. A cup holder coupler 221 is arranged at the bottom of the cup holder 22, and when the cup body assembly 20 is mounted on the food processor base 10, the cup holder coupler 221 of the cup body assembly 20 can be electrically plugged with the base coupler 11 of the food processor base 10. A cup coupler 231 is disposed on the top of the cup 21, and the cup coupler 231 may be electrically connected to the cup holder coupler 221 through a wire or a metal conductive member, for example. The cup body 21 is provided at one side with a cup handle 23 for easy grasping. In one embodiment, the cup coupler 231 is disposed at the top end of the cup handle 23 of the cup 21.

The lid assembly 30 removably covers the bowl assembly 20. When the food processor works, the cup cover assembly 30 can be covered on the cup body assembly 20 and used for sealing the cup opening of the cup body assembly 20. After the processor finishes working, the cup cover assembly 30 can be taken down from the cup body assembly 20. In some embodiments, the lid assembly 30 can be opened to add food material during the cooking process of the cooking machine. Lid assembly 30 is provided with lid coupler 311, with a lid switch trigger provided in lid coupler 311. Lid assembly 30 is provided with a lid handle 31 on one side. In one embodiment, lid coupler 311 is disposed in lid handle 31 of lid assembly 30. When lid assembly 30 is closed on cup assembly 20, lid coupler 311 of lid assembly 30 is electrically connected to cup coupler 231 of cup assembly 20, and a lid switch trigger triggers the lid switch to close.

Referring back to fig. 4, the base coupler 11 on the food processor base 10 has six pins, i.e., a first pin P1, a second pin P2, a third pin P3, a fourth pin P4, a fifth pin P5 and a sixth pin P6.

Fig. 7 illustrates a pin diagram of a cup coupler 221 on a heated cup assembly 20 according to an embodiment of the present invention. As shown in fig. 7, the CUP coupler 221 on the heated CUP assembly 20 has a neutral pin N, a hot pin L, a lid detect pin CUP, an anti-spill probe pin Flow, a ground pin GND, and a temperature detect pin NTC. The neutral wire pin N, the live wire pin L, the lid detection pin CUP, the overflow prevention probe pin Flow, the ground pin GND, and the temperature detection pin NTC of the heated CUP coupler 221 may be respectively inserted into the first pin P1, the second pin P2, the third pin P3, the fourth pin P4, the fifth pin P5, and the sixth pin P6 of the base coupler 11. The live pin L and neutral pin N of the cup coupler 221 are used to implement a heating function. CUP lid detection pin CUP of CUP holder coupler 221 is connected to ground pin GND through CUP lid switch S1 for determining opening and closing of CUP lid assembly 30, and CUP lid detection pin CUP is used for connecting to CUP lid detection circuit 104 on control board 13 (as shown in fig. 9). When the CUP assembly 20 is mounted on the food processor base 10, the CUP lid detection pin CUP of the CUP base coupler 221 is electrically connected to the CUP lid detection circuit 104 through the third pin P3 of the base coupler 11. A built-in cup judgment resistor R11 is connected between the temperature detection pin NTC of the cup holder coupler 221 and the ground pin GND for identifying the type of the cup body assembly 20. The overflow prevention probe pin Flow of the cup holder coupler 221 is connected to an overflow prevention probe in the cup body assembly 20 for realizing an overflow prevention detection function. When the cup assembly 20 is mounted on the food processor base 10, the overflow prevention probe pin Flow of the cup coupler 221 is electrically connected to the input terminal of the overflow prevention detection circuit 102 on the control board 13 through the fourth pin P4 of the base coupler 11 (as shown in fig. 9).

Fig. 8 illustrates a pin diagram of a cup coupler 222 on a non-heated cup assembly 20 according to another embodiment of the present invention. As shown in FIG. 8, CUP coupler 222 on unheated CUP assembly 20 has lid detect pin CUP, second lid detect pin CUP2, signal ground pin SGND and temperature detect pin NTC. Lid detect pin CUP, second lid detect pin CUP2, signal ground pin SGND, and temperature detect pin NTC of unheated CUP-holder coupler 222 may be plugged into third pin P3, fourth pin P4, fifth pin P5, and sixth pin P6, respectively, of base coupler 11. CUP lid detection pin CUP and second CUP lid detection pin CUP2 of CUP holder coupler 222 are connected through CUP lid switch S2 for determining the opening and closing of CUP lid assembly 30, CUP lid detection pin CUP is used for being connected to CUP lid detection circuit 104 shown in fig. 9, and second CUP lid detection pin CUP2 is used for being connected to the input end of anti-overflow detection circuit 102 on control board 13, as shown in fig. 9. When the CUP assembly 20 is mounted on the food processor base 10, the CUP lid detection pin CUP of the CUP coupler 222 is electrically connected to the CUP lid detection circuit 104 through the third pin P3 of the base coupler 11, and the second CUP lid detection pin CUP2 of the CUP coupler 221 is electrically connected to the input terminal of the anti-overflow detection circuit 102 through the fourth pin P4 of the base coupler 11. A built-in cup judgment resistor R12 is connected between the temperature detection pin NTC of the cup-holder coupler 222 and the signal ground pin SGND for identifying the type of the cup assembly 20. Wherein the built-in cup resistance R11 of the non-heated cup coupler 221 and the built-in cup resistance R12 of the heated cup coupler 222 have different resistance ranges.

Fig. 9 shows a schematic diagram of the processor operating circuit 100 according to an embodiment of the present invention. As shown in fig. 9, at least a part of the food processor operating circuit 100 according to an embodiment of the present invention may be disposed on the control board 13 in the food processor base 10. The processor operating circuit 100 of an embodiment of the present invention includes a controller 101, an anti-overflow detecting circuit 102 and a ground control circuit 103. The Controller 101 may be, for example, a single chip Microcomputer (MCU), and the Controller 101 has a CUP identification port AD _ CUP, an overflow prevention detection port P _ Flow, and a ground control port flowtold.

The anti-overflow detection circuit 102 has an input terminal and an output terminal. The input end of the overfill prevention detection circuit 102 is used to electrically connect with a predetermined pin of the cup coupler 221 of the cup assembly 20, wherein for the heated cup assembly 20, the predetermined pin of the cup coupler 221 is an overfill probe pin Flow; for unheated CUP assembly 20, the predetermined pin of CUP coupler 222 is second lid detect pin CUP 2. An output end of the overflow prevention detection circuit 102 is connected to an overflow prevention detection port P _ Flow of the controller 101 for detecting an overflow condition of the food material in the cup assembly 20 of the food processor.

The ground control circuit 103 is connected between the input terminal of the anti-overflow detection circuit 102 and ground, and the ground control circuit 103 is connected to the ground control port flowtold of the controller 101.

When the CUP identification port AD _ CUP of the controller 101 identifies that the CUP assembly 20 is not heated, the controller 101 controls the ground control circuit 103 to be conducted to the ground through the ground control port flowtold, and at this time, the overflow prevention detection circuit 102 is bypassed and the overflow prevention detection port P _ Flow of the controller 101 is not used.

When the CUP body identification port AD _ CUP of the controller 101 identifies that the heated CUP body assembly 20 is, the controller 101 controls the ground control circuit 103 to be disconnected from the ground through the ground control port flowtotgnd, and at this time, a predetermined pin of the CUP-holder coupler 221, that is, an overflow prevention probe pin Flow of the heated CUP-holder coupler 221 is connected to the overflow prevention detection port P _ Flow of the controller 101 through the overflow prevention detection circuit 102, so that the overflow condition of the food material in the heated CUP body assembly 20 can be detected, and the normal use of the heated CUP body assembly 20 is ensured.

The utility model discloses a cooking machine work circuit 100 is through setting up ground connection control circuit 103, controller 101 can come the selectivity according to CUP subassembly 20's type to control ground connection control circuit 103 whether to switch on to ground, thereby, make fourth pin P4 of base coupler 11 both can the adaptation take the anti-overflow probe pin Flow of the CUP coupler 221 of heating, also can the adaptation not take the second bowl cover of the CUP coupler 222 of heating to detect pin CUP2, realized multiplexing into a base coupler pin with different functions, thereby can use same cooking machine base 10 to come the CUP subassembly 20 that is suitable for the different grade type, take the CUP subassembly 20 of heating promptly and do not take the CUP subassembly 20 of heating.

The utility model discloses a cooking machine work circuit 100 has kept only with the base coupler 11 of six pins through setting up ground connection control circuit 103, and need not to increase the pin number of base coupler 11 to, through setting up ground connection control circuit 103, can realize taking the normal anti-overflow of the cup subassembly 20 of heating to detect, simultaneously, can effectively ensure again to take the security performance in the cup subassembly 20 use of heating.

For example, when the CUP identification port AD _ CUP of the controller 101 identifies that the CUP assembly 20 is not heated, the controller 101 may control the ground control port flowtold to output a first level signal, and the ground control circuit 103 may be turned on to the ground based on the first level signal. When the CUP identification port AD _ CUP of the controller 101 identifies that the heated CUP assembly 20 is present, the controller 101 may control the ground control port flowtold to output a second level signal, and the ground control circuit 103 may disconnect from the ground based on the second level signal. Thus, whether the ground control circuit 103 is turned on to the ground is controlled by the high or low of the ground control port flowtond output level signal.

In some embodiments, the ground control circuit 103 of the present invention may include a transistor Q1. The base b of the transistor Q1 is connected to the ground control port flowtold of the controller 101, the collector c of the transistor Q1 is electrically connected to the input terminal of the anti-overflow detection circuit 102, the emitter e of the transistor Q1 is connected to the ground, and the controller 101 can control whether the ground control circuit 103 is connected to the ground by controlling the on or off of the transistor Q1.

In one embodiment, the base b of the transistor Q1 is connected to the ground control port flowtold of the controller 101 through a first resistor R1, and the first resistor R1 may function as a current limiter. In one embodiment, a second resistor R2 is disposed between the base b and the emitter e of the transistor Q1, and the second resistor R2 can prevent false triggering, so as to effectively ensure that the transistor Q1 can be reliably turned off when the input terminal is suspended.

In some embodiments, the food processor operating circuit 100 of the present invention may further include a first capacitor C1, and the first capacitor C1 is connected between the input terminal of the anti-overflow detecting circuit 102 and the ground. The first capacitor C1 may act as a filter.

Continuing to refer to fig. 9, the controller 101 further has a detection and driving port RLY, the food processor operating circuit 100 of the present invention further includes a cup cover detecting circuit 104, the cup cover detecting circuit 104 is connected to the detection and driving port RLY of the controller 101 for detecting the opening and closing state of the cup cover assembly 30 of the food processor.

The food processor operating circuit 100 of the present invention further includes a load driving circuit 105, the load driving circuit 105 is connected between the power supply and the load 12 of the food processor, and the load driving circuit 105 is connected to the detection and driving port RLY of the controller 101. When the controller 101 detects that the lid assembly 30 is covered through the detection and driving port RLY, the controller 101 may control the load driving circuit 105 through the detection and driving port RLY so as to connect the power supply to the load 12. Therefore, the uncovering protection function of the cup cover assembly 30 can be realized. In one embodiment, the load driving circuit 105 includes a relay RLY1 and a transistor Q2 connected to the relay RLY 1. The detection and driving port RLY of the controller 101 controls the pull-in or turn-off of the relay RLY1 by controlling the on or off of the transistor Q2.

For example, when the heated cup assembly 20 is identified, the controller 101 may control the ground control port flowtold to output a low level and the transistor Q1 is turned off, thereby disconnecting the overflow prevention probe pin Flow of the heated cup coupler 221 from ground, and the overflow prevention probe pin Flow of the heated cup coupler 221 may be connected to the overflow prevention detection circuit 102, which may perform overflow prevention detection on the heated cup assembly 20, thereby ensuring normal use of the heated cup assembly 20.

When it is determined that the CUP assembly 20 is not heated, the controller 101 may control the ground control port flowtold to output a high level, and the transistor Q1 is turned on, so that the second lid detect pin CUP2 without the heated CUP coupler 222 is turned on directly to ground, the overflow prevention detection circuit 102 is bypassed, and the ground control port flowtold of the controller 101 is not used. The high level is detected by the combination detection and drive port RLY of the controller 101 when the lid assembly 30 is not covering the bowl assembly 20. When the second lid detect pin CUP2 of the CUP coupler 222 without heating is directly conducted to ground, if the lid assembly 30 is covered on the CUP assembly 20 at this time, the CUP end connected to the lid detect pin CUP of the CUP coupler 222 is correspondingly connected to ground, and the detection and drive port RLY of the controller 101 can detect a low level through the lid detect circuit 104, and can determine that the lid assembly 30 is covered, so that the load 12 can be allowed to operate. At this time, in order to operate the load 12, the detection and driving port RLY may be configured as an output port, and the detection and driving port RLY is configured as a high level, so that the transistor Q2 may be turned on, and the relay RLY1 may be turned on in a pull-in manner, and the power supply is connected to the load 12, allowing the load 12 to operate. If the detection/drive port RLY is set to the low level, the transistor Q2 is turned off, the relay RLY1 is turned off, and the power supply cannot be connected to the load 12, and the load 12 cannot operate.

The utility model discloses a cooking machine work circuit 100 need not to increase the pin count of base coupler 11 to can not increase the volume of coupler. The utility model discloses a cooking machine work circuit 100 has realized the cup body assembly 20 of same cooking machine base 10 adaptation different grade type, has good commonality to can reduce cost.

The utility model discloses a cooking machine work circuit 100 can guarantee different grade type cup body component 20's use through setting up ground connection control circuit 103, has good safe performance again.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a cooking machine operating circuit, is applied to in the cooking machine, the cooking machine has the cup body assembly of different grade type, the subassembly of different grade type is including the cup body assembly who takes the heating and the cup body assembly who does not take the heating, its characterized in that: the processor operating circuit (100) comprises:

a controller (101) having a cup identification port, an anti-spill detection port, and a ground control port;

the anti-overflow detection circuit (102) is provided with an input end and an output end, the input end is used for being electrically connected with a preset pin of a cup seat coupler on the cup body assembly, and the output end is connected to the anti-overflow detection port of the controller (101) and used for detecting the overflow condition of food materials in the cup body assembly of the food processor; and

a ground control circuit (103) connected between the input of the anti-overflow detection circuit (102) and ground, and the ground control circuit (103) is connected to the ground control port of the controller (101);

wherein, when the cup identification port of the controller (101) identifies that the cup assembly is a non-heated cup assembly, the controller (101) controls the ground control circuit (103) to conduct to ground through the ground control port so that the anti-overflow detection circuit (102) is bypassed; when the cup identification port of the controller (101) identifies a heated cup assembly, the controller (101) controls the ground control circuit (103) to be disconnected from ground through the ground control port so that the predetermined pin of the cup holder coupler is connected to the anti-overflow detection port of the controller (101) through the anti-overflow detection circuit (102).

2. The processor operating circuit of claim 1, wherein: when the cup identification port identifies that the cup assembly is not heated, the controller (101) controls the grounding control port to output a first level signal, and the grounding control circuit (103) is conducted to the ground based on the first level signal; when the cup identification port identifies that the cup assembly with heating is available, the controller (101) controls the grounding control port to output a second level signal, and the grounding control circuit (103) is disconnected from the ground based on the second level signal.

3. The processor operating circuit of claim 2, wherein: the ground control circuit (103) comprises a triode, the base of the triode is connected to the ground control port of the controller (101), the collector of the triode is electrically connected with the input end of the anti-overflow detection circuit (102), the emitter of the triode is connected to the ground, and the controller (101) controls whether the ground control circuit (103) is conducted to the ground or not by controlling the conduction or disconnection of the triode.

4. The processor operating circuit of claim 3, wherein: the base of the triode is connected to the ground control port of the controller (101) through a first resistor.

5. The processor operating circuit of claim 3, wherein: and a second resistor is arranged between the base electrode and the emitting electrode of the triode.

6. The processor operating circuit of claim 1, wherein: further comprising:

a first capacitor connected between the input terminal of the anti-overflow detection circuit (102) and ground.

7. The processor operating circuit of claim 1, wherein: the controller (101) further has a detection and drive port, and the processor operating circuit (100) further includes:

and the cup cover detection circuit (104) is connected to the detection and driving port of the controller (101) and is used for detecting the opening and closing state of the cup cover assembly of the food processor.

8. The processor operating circuit of claim 7, wherein: further comprising:

a load driving circuit (105) connected between a power source and a load (12) of the food processor, wherein the load driving circuit (105) is connected to the detection/drive port of the controller (101),

when the controller (101) detects the cover assembly is covered through the detection and driving port, the controller (101) controls the load driving circuit (105) through the detection and driving port so that the power supply is connected to the load (12).

9. A cooking machine, its characterized in that: the method comprises the following steps:

a food processor base (10) comprising the food processor operating circuit (100) of any one of claims 1 to 8, the food processor base (10) having a base coupler (11);

different types of cup assemblies (20) which are detachably mounted on the food processor base (10), wherein the different types of cup assemblies (20) comprise a cup assembly with heating and a cup assembly without heating, the cup assembly (20) comprises a cup seat (22) and a cup body (21) which is mounted on the cup seat (22) and is used for containing food materials, the cup seat (22) is provided with a cup seat coupler, the cup seat coupler and the base coupler (11) can be electrically plugged, and the cup seat coupler is electrically connected into the food processor working circuit (100) through the base coupler (11); and

and the cup cover assembly (30) is detachably covered on the cup body assembly (20).

10. The food processor of claim 9, wherein: the base coupler (11) has a first pin, a second pin, a third pin, a fourth pin, a fifth pin and a sixth pin, the cup seat coupler of the cup body component with heating is provided with a zero line pin, a live line pin, a cup cover detection pin, an anti-overflow probe pin, a ground pin and a temperature detection pin which can be respectively inserted into the first pin, the second pin, the third pin, the fourth pin, the fifth pin and the sixth pin, the cup seat coupler without the heated cup body component is provided with a cup cover detection pin, a second cup cover detection pin, a signal ground pin and a temperature detection pin which can be respectively inserted into the third pin, the fourth pin, the fifth pin and the sixth pin, wherein for the heated cup assembly, the predetermined pin of the cup coupler is the anti-spill probe pin; for the unheated cup assembly, the predetermined pin of the cup holder coupler is the second lid detect pin.

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