CN212755374U - Food processor working circuit for preventing bottom from being burnt and food processor - Google Patents
Food processor working circuit for preventing bottom from being burnt and food processor Download PDFInfo
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- CN212755374U CN212755374U CN202020847058.0U CN202020847058U CN212755374U CN 212755374 U CN212755374 U CN 212755374U CN 202020847058 U CN202020847058 U CN 202020847058U CN 212755374 U CN212755374 U CN 212755374U
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- 235000013305 food Nutrition 0.000 title claims abstract description 104
- 238000010438 heat treatment Methods 0.000 claims abstract description 84
- 239000000463 material Substances 0.000 claims abstract description 78
- 238000001514 detection method Methods 0.000 claims abstract description 68
- 238000010411 cooking Methods 0.000 claims abstract description 16
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 15
- 239000010703 silicon Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims description 13
- 230000000670 limiting effect Effects 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 238000009835 boiling Methods 0.000 description 3
- 235000010469 Glycine max Nutrition 0.000 description 2
- 244000068988 Glycine max Species 0.000 description 2
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 2
- 235000013336 milk Nutrition 0.000 description 2
- 239000008267 milk Substances 0.000 description 2
- 210000004080 milk Anatomy 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000003796 beauty Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 235000013322 soy milk Nutrition 0.000 description 1
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Abstract
The utility model provides a cooking machine working circuit and cooking machine for preventing sticking with paste end. The processor working circuit comprises a switch control circuit, a zero-crossing detection circuit, a temperature sensor and a controller. The switch control circuit is electrically connected between the power supply and the load and used for controlling the load, the load comprises a heating component and a motor, the switch control circuit comprises a heating control circuit, and the heating control circuit comprises a silicon controlled rectifier. The zero-crossing detection circuit is connected to the power supply and has a signal output end for outputting a zero-crossing detection signal. The temperature sensor is used for sensing the temperature of the food material. The controller has a zero-crossing detection port and a drive control port. The temperature sensor is connected with the controller, the controller alternately controls the heating assembly to heat at different powers and controls the motor to whip at different rotating speeds according to different stages of the temperature of the food material, the zero crossing point of the power supply is determined according to the zero-crossing detection signal, and the silicon controlled rectifier is controlled to be switched on and switched off at the zero crossing point to control the power of the heating assembly, so that the food material is prevented from being burnt.
Description
Technical Field
The utility model relates to the technical field of household appliances, especially, relate to a cooking machine working circuit and cooking machine for preventing sticking with paste end.
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.
When the existing food processor heats food materials, the food materials are easily adhered to the cup bottom, and the phenomenon that the food materials are burnt is easily caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a cooking machine working circuit and cooking machine for preventing sticking with paste end to solve at least and eat the material burnt technical problem who sticks with paste the end.
One aspect of the present invention provides a food processor working circuit for preventing bottom-burnt. The processor working circuit comprises a switch control circuit, a zero-crossing detection circuit, a temperature sensor and a controller. The switch control circuit is electrically connected between a power supply and a load and used for controlling the load, the load comprises a heating component and a motor, the switch control circuit comprises a heating control circuit, and the heating control circuit comprises a controlled silicon. The zero-crossing detection circuit is connected to the power supply and is provided with a signal output end, and the zero-crossing detection circuit outputs a zero-crossing detection signal through the signal output end. The temperature sensor is used for sensing the temperature of food materials in the food processor. The controller is provided with a zero-crossing detection port and a driving control port, the zero-crossing detection port is connected to the zero-crossing detection circuit to receive the zero-crossing detection signal output by the zero-crossing detection circuit, and the driving control port is connected to the controllable silicon. The temperature sensor is connected with the controller, the controller alternately controls the heating assembly to heat food materials with different powers and controls the motor to whip the food materials at different rotating speeds according to different stages of the detected temperature of the food materials, the controller determines the zero-crossing point of alternating current output by the power supply according to the zero-crossing detection signal, and the controlled silicon is controlled to be switched on and off at the zero-crossing point to control the power of the heating assembly, so that the food materials are prevented from being burnt.
Further, the controller comprises a counter, the counter is used for recording the number of the zero-crossing detection signals detected by the zero-crossing detection port, and the controller controls the conduction and the cut-off of the controllable silicon at different stages according to the number of the zero-crossing detection signals recorded by the counter when the zero-crossing point is reached. Thus, the heating duty ratio can be controlled, and the heating power of the heating assembly can be controlled.
Further, the controller comprises a timer, the timer is used for recording the time point of the zero-crossing detection signal detected by the zero-crossing detection port, and the controller controls the conduction and the cut-off of the controllable silicon at different stages according to the time point of the zero-crossing detection signal recorded by the timer and the zero-crossing point of the frequency of the alternating current output by the power supply. Thus, the heating duty ratio can be controlled, and the heating power of the heating assembly can be controlled.
Further, in a first stage when the temperature of the food material does not reach a first temperature threshold, the controller controls the heating assembly to heat the food material at a first power; in a second stage when the temperature of the food material reaches the first temperature threshold, the controller controls the heating assembly to heat the food material at a rated power; in a third phase when the temperature of the food material reaches the second temperature threshold, the controller controls the heating assembly to heat the food material at a second power, wherein the second power is smaller than the first power, and the first power is smaller than the rated power. Therefore, the food materials are not easy to burn and bottom burnt.
Further, in the first phase, the controller controls the motor to whip the food material at a first rotational speed; in the second stage and the third stage, the controller controls the motor to whip the food material at a second rotation speed, wherein the first rotation speed is greater than the second rotation speed. Therefore, the food materials can roll up and down, and the food materials are heated more uniformly.
Further, the zero-crossing detection circuit includes a pull-down resistor connected in series between the signal output terminal and a ground terminal. Thus, voltage division can be performed to generate a zero-cross detection signal.
Further, the zero-crossing detection circuit comprises a diode connected in series between the power supply and the signal output end, the anode of the diode is connected with one end of the power supply, and the cathode of the diode is connected with the signal output end. The diode may convert the waveform of the power supply into a half-wave, the positive half-cycle of the power supply may pass through the diode, while the negative half-cycle of the power supply is isolated by the diode.
Further, the zero-crossing detection circuit further comprises a current-limiting resistor connected with the diode in series, so that a current limiting effect can be achieved.
Further, the temperature sensor is disposed on the heating assembly.
Another aspect of the utility model provides a cooking machine, it includes host computer, cup body assembly and as above be used for preventing sticking with paste the end cooking machine work circuit. The host comprises a host shell, a motor and a main control board, wherein the motor and the main control board are arranged in the host shell. The cup body assembly is arranged on the host machine and comprises a heating assembly assembled at the bottom of the cup body assembly. At least one part of the food processor working circuit is arranged on the main control board.
The utility model discloses a cooking machine operating circuit passes through silicon controlled rectifier and zero cross detection circuit can control heating element's heating power accurately to, the edible material temperature that combines temperature sensor to detect adopts different power to heat edible material in the different temperature stages of eating the material, thereby, can make edible material be difficult for burning burnt. Moreover, the heating of the heating component can be more uniform through the alternate work of the heating component and the motor, so that the bottom pasting phenomenon can not occur.
Drawings
Fig. 1 is a schematic perspective view of a food processor according to an embodiment of the present invention;
fig. 2 is a schematic block diagram of a food processor working circuit for preventing bottom pasting according to an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of a heating control circuit according to an embodiment of the present invention;
fig. 4 is a schematic circuit diagram of a zero-crossing detection circuit according to an embodiment of the present invention;
fig. 5 is a schematic block diagram of a controller according to an embodiment of the present invention;
fig. 6 is a schematic view of a heating cycle of a heating assembly according to an embodiment of the present invention;
fig. 7 is a flowchart of a control method for preventing bottom-blur 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 and the food processor of the present invention do not necessarily include these other structural features, and the food processor operating circuit and the food processor of the present invention may include other structural features necessary for realizing the basic functions of the food processor.
Fig. 1 shows a perspective view of a food processor 10 according to an embodiment of the present invention. As shown in fig. 1, a food processor 10 according to an embodiment of the present invention includes a main body 11 and a cup body assembly 12. The food processor 10 can be a blender, a wall breaking machine, a soymilk maker or a juice extractor, etc.
In one embodiment, the host 11 is in the form of a stand. The host 11 can provide power to control and drive the food processor 10 to operate. The host 11 includes a host housing 14, and a motor 15 and a main control board 16 (shown by dotted lines in fig. 1) disposed within the host housing 14.
The cup body assembly 12 is disposed on the main body 11. In one embodiment, the cup assembly 12 is removably mounted to the host 11. A rotating knife assembly (not shown) can be assembled in the cup body assembly 12, the rotating knife assembly is rotatably arranged in the accommodating cavity of the cup body assembly 12, the rotating knife assembly is connected with a rotating shaft of the motor 15, and the rotating knife assembly is driven by the motor 15 to rotate so as to stir or crush food materials. The rotating knife assembly can be set as a stirring knife assembly, a wall breaking knife assembly or a juicing wheel assembly and the like.
In one embodiment, the cup body assembly 12 includes a heating assembly 17 assembled to the bottom of the cup body assembly 12, such as a heating plate provided with a heating tube or an electromagnetic heating plate, which can be used to heat food materials. The rotary knife assembly may be assembled to the heating assembly 17. The heating assembly 17 may be assembled with a Temperature sensor 130, such as an NTC (Negative Temperature Coefficient) thermistor, so that the Temperature of the food material in the cup body assembly 12 of the food processor 10 can be sensed through the change of the resistance.
The food processor 10 further comprises a cup cover assembly 13, and the cup cover assembly 13 is detachably covered on the cup body assembly 12. When the food processor 10 works, the cup cover assembly 13 can be covered on the cup body assembly 12 and used for sealing the cup opening of the cup body assembly 12. After the food processor 10 finishes working, the cup cover assembly 13 can be taken down from the cup body assembly 12. In some embodiments, the lid assembly 13 can be opened to add food during the cooking process of the cooking machine 10.
The food processor 10 includes a food processor operating circuit 100 for preventing the user from being confused, and at least a portion of the food processor operating circuit 100 may be disposed on the main control board 16 in the host 11. Fig. 2 discloses a schematic block diagram of an operating circuit 100 of a food processor for preventing bottom pasting according to an embodiment of the present invention. As shown in fig. 2, the processor operating circuit 100 includes a switch control circuit 110, a zero-crossing detection circuit 120, a temperature sensor 130, and a controller 140. The switch control circuit 110 is electrically connected between the power source and the load 200 for controlling the load 200, and the load 200 may include the heating assembly 17 and the motor 15. The power supply has a live line L and a neutral line N, and may be, for example, a mains power supply.
The switch control circuit 110 includes a heating control circuit 111. Fig. 3 discloses a circuit diagram of the heating control circuit 111 according to an embodiment of the present invention. As shown in fig. 3, the heating control circuit 111 includes a silicon controlled SCR. The control terminal G of the thyristor SCR is connected to a drive control port Triac of the controller 140. A first output terminal T1 of the thyristor SCR is connected to the neutral line N of the power supply and a second output terminal T2 of the thyristor SCR is connected to the HEAT terminal of the heating assembly 17.
In one embodiment, the control terminal G of the SCR is connected to the driving control port Triac of the controller 140 through current limiting resistors R31 and R32. A resistor R33 is connected between the control terminal G of the SCR and the first output terminal T1. A resistor R34 and a capacitor C are connected in series between the first output terminal T1 and the second output terminal T2 of the SCR.
The temperature sensor 130 is connected to the controller 140, and the temperature sensor 130 can transmit the sensed temperature of the food material to the controller 140.
Fig. 4 discloses a circuit schematic diagram of the zero-crossing detection circuit 120 according to an embodiment of the present invention. As shown in fig. 4, the zero crossing detection circuit 120 is connected to a power source, such as the power line L of the power source. The zero-cross detection circuit 120 has a signal output terminal OUT, and the zero-cross detection circuit 120 outputs a zero-cross detection signal through the signal output terminal OUT.
In one embodiment, the zero-crossing detection circuit 120 includes a pull-down resistor R1 connected in series between the signal output terminal OUT and the ground terminal GND, so that voltage division can be performed and the zero-crossing detection signal can be generated.
The zero-crossing detection circuit 120 includes a diode D connected in series between the power supply and the signal output terminal OUT, the anode of the diode D is connected to the live line L of the power supply, and the cathode of the diode D is connected to the signal output terminal OUT. The diode D converts the waveform of the power supply into a half-wave, wherein the positive half-cycle of the power supply can pass through the diode D, while the negative half-cycle of the power supply is isolated by the diode D.
The zero crossing detection circuit 120 also includes a current limiting resistor R2 in series with the diode D. The current limiting resistor R2 may include one or more resistors, taking into account the voltage resistance of the resistors. In the embodiment shown in fig. 4, the current limiting resistor R2 includes resistors R21 and R22.
The Controller 140 may be, for example, a single chip microcomputer (MCU, Micro-Controller Unit) or the like. Fig. 5 discloses a schematic block diagram of a controller 140 according to an embodiment of the present invention. As shown in fig. 5, the controller 140 has a ZERO-crossing detection port ZERO and a drive control port Triac. A ZERO-crossing detection port ZERO of the controller 140 is connected to the ZERO-crossing detection circuit 120 to receive the ZERO-crossing detection signal output by the ZERO-crossing detection circuit 120, and a driving control port Triac of the controller 140 is connected to a control terminal G of the thyristor SCR in the heating control circuit 111 for controlling the thyristor SCR.
The controller 140 alternately controls the heating assembly 17 to heat the food material at different powers and controls the motor 15 to whip the food material at different rotating speeds according to different stages of the detected temperature of the food material, and the controller 140 determines a zero-crossing point of alternating current output by the power supply according to the zero-crossing detection signal, and controls the conduction and the cut-off of the silicon controlled rectifier SCR at the zero-crossing point to control the power of the heating assembly 17, thereby preventing the food material from being burnt.
The utility model discloses a cooking machine work circuit 100 can control the heating power of heating element 17 accurately through silicon controlled rectifier SCR and zero cross detection circuit 120 to, the edible material temperature that combines that temperature sensor 130 detects adopts different power to heat edible material in the different temperature stages of edible material, thereby, can make edible material be difficult for burning burnt. Moreover, through the alternative work of the heating component 17 and the motor 15, the heating of the heating component 17 can be more uniform, and therefore the bottom pasting phenomenon can not occur.
In one embodiment, the controller 140 includes a counter 141, the counter 141 is used for recording the number of ZERO-crossing detection signals detected by the ZERO-crossing detection port ZERO, and the controller 140 controls the turn-on and turn-off of the thyristor SCR at different stages at the time of the ZERO-crossing point according to the number of ZERO-crossing detection signals recorded by the counter 141. Thus, the duty cycle of the heating can be controlled, thereby controlling the heating power of the heating assembly 17.
In another embodiment, the controller 140 includes a timer 142, the timer 142 is used for recording the time point of the ZERO-crossing detection signal detected by the ZERO-crossing detection port ZERO, and the controller 140 controls the turn-on and turn-off of the thyristor SCR at different stages at the time of the ZERO-crossing point according to the time point of the ZERO-crossing detection signal recorded by the timer 142 and the frequency of the alternating current output by the power supply. Thus, the heating duty ratio can be controlled, and the heating power of the heating assembly can be controlled.
In some embodiments, in a first phase when the temperature of the food material does not reach a first temperature threshold, e.g. 50 degrees, the controller 140 may control the heating assembly 17 to heat the food material at a first power, e.g. 70% power; in a second stage when the temperature of the food material reaches a first temperature threshold, for example 50 degrees, the controller 140 may control the heating assembly 17 to heat the food material at a rated power, i.e. full power; in a third phase when the temperature of the food material reaches a second temperature threshold, for example 90 degrees, the controller 140 may control the heating assembly 17 to heat the food material at a second power, for example half power, wherein the second power is smaller than the first power, and the first power is smaller than the rated power. Therefore, the food materials are not easy to burn and bottom burnt.
In other embodiments, in the first phase, the controller 140 may control the motor 15 to whip the food material at a first rotational speed, for example 4000 revolutions; in the second and third stages, the controller 140 may control the motor 15 to whip the food material at a second rotation speed, for example 1000 revolutions, wherein the first rotation speed is greater than the second rotation speed. Therefore, the food materials can roll up and down, and the food materials are heated more uniformly.
Fig. 6 discloses a schematic diagram of the heating cycle of the heating assembly 17 according to an embodiment of the present invention. As shown in fig. 6, the shaded portion represents heating, the SCR is controlled to be turned on when the zero crossing point of the power supply is reached, the heating component 17 heats, after n unit periods of heating, the SCR is controlled to be turned off when the zero crossing point of the power supply is reached, m unit periods of heating are turned off, each unit period of heating is 10ms, and then the whole heating period T is reachedHEATAs follows:
THEAT＝(n+m)×10ms
at this time, the actual heating power of the heating assembly 17 is as follows:
PHEAT＝n/(n+m)×P
wherein, PHEATP is the actual heating power of the heating element 17 and P is the rated power of the heating element 17.
The utility model discloses a food processor work circuit 100 can accurately find the zero crossing point of power through zero cross detection circuit 120, realizes that silicon controlled rectifier SCR switches on and turn-offs at the zero crossing point to, can the duty cycle of accurate control heating through silicon controlled rectifier SCR, and then the heating power of accurate control heating element 17 has realized the accurate control to heating element 17.
Fig. 7 is a flowchart of a control method for preventing bottom-blur according to an embodiment of the present invention. As shown in fig. 7, the control method for preventing the bottom blur according to an embodiment of the present invention may include steps S11 to S17.
At the beginning of cooking, in step S11, the food material is heated at the first power for a certain time, for example, at 70% power for 30S, and then the non-soft-start motor 15 is whipped at the first rotation speed for a certain time, for example, at 4000 revolutions for 1.5S. Therefore, the food materials can roll up and down, the food materials are heated more uniformly, and the food materials are not stirred too much.
In step S12, it is determined whether the detected temperature of the food material is greater than 50 degrees. If the judgment result is yes, the process proceeds to step S13. Otherwise, the process returns to step S11 and continues to step S11 until the temperature of the food material reaches 50 degrees.
In step S13, after the temperature of the food material is higher than 50 degrees, the food material is heated at the rated power for a certain time, for example, at the full power for 60S, and the food material is whipped at the second rotation speed for a certain time, for example, at 1000 revolutions for 6S.
In step S14, it is determined whether the detected temperature of the food material is greater than 90 degrees. If the judgment result is yes, the process proceeds to step S15. Otherwise, the process returns to step S13 and continues to step S13 until the temperature of the food material reaches 90 degrees.
In step S15, after the temperature of the food material is higher than 90 degrees, the boiling determining stage is entered, the food material is heated at the second power for a certain time, for example, at half power for 30S, and the food material is whipped at the second rotation speed for a certain time, for example, at 1000 rpm for 3S.
In step S16, it is determined whether or not the boiling determination completion condition is satisfied. If the determination result is yes, the process proceeds to step S17, where the boiling determination is completed. Otherwise, the process returns to step S15 and continues to step S15.
Through the steps, the phenomenon that the food materials are burnt and burnt in the cooking process can be avoided.
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 work circuit for preventing sticking with paste end which characterized in that: the method comprises the following steps:
the switch control circuit (110) is electrically connected between a power supply and a load and used for controlling the load, the load comprises a heating component (17) and a motor (15), the switch control circuit (110) comprises a heating control circuit (111), and the heating control circuit (111) comprises a silicon controlled rectifier;
a zero-crossing detection circuit (120) connected to the power supply and having a signal output end, the zero-crossing detection circuit (120) outputting a zero-crossing detection signal through the signal output end;
the temperature sensor (130) is used for sensing the temperature of food materials in the food processor (10); and
a controller (140) having a zero-crossing detection port connected to the zero-crossing detection circuit (120) to receive the zero-crossing detection signal output from the zero-crossing detection circuit and a driving control port connected to the thyristor,
wherein the temperature sensor (130) is connected with the controller (140), the controller (140) alternately controls the heating assembly (17) to heat food materials with different powers and controls the motor (15) to whip the food materials with different rotating speeds according to different stages of the detected temperature of the food materials, the controller (140) determines the zero-crossing point of alternating current output by the power supply according to the zero-crossing detection signal, and controls the on and off of the thyristor at the zero-crossing point to control the power of the heating assembly (17), so as to prevent the food materials from being burnt.
2. The processor operating circuit of claim 1, wherein: the controller (140) comprises a counter (141), the counter (141) is used for recording the number of the zero-crossing detection signals detected by the zero-crossing detection port, and the controller (140) controls the conduction and the cut-off of the thyristor at different stages at the time of the zero crossing according to the number of the zero-crossing detection signals recorded by the counter (141).
3. The processor operating circuit of claim 1, wherein: the controller (140) comprises a timer (142), the timer (142) is used for recording the time point of the zero-crossing detection signal detected by the zero-crossing detection port, and the controller (140) controls the conduction and the cut-off of the controllable silicon at different stages according to the time point of the zero-crossing detection signal recorded by the timer (142) and the frequency of the alternating current output by the power supply at the time of the zero crossing.
4. The processor operating circuit of claim 1, wherein: in a first phase when the temperature of the food material does not reach a first temperature threshold, the controller (140) controls the heating assembly (17) to heat the food material at a first power; in a second phase when the temperature of the food material reaches the first temperature threshold, the controller (140) controls the heating assembly (17) to heat the food material at a rated power; in a third phase when the temperature of the food material reaches a second temperature threshold, the controller (140) controls the heating assembly (17) to heat the food material at a second power, wherein the second power is smaller than the first power, and the first power is smaller than the rated power.
5. The processor operating circuit of claim 4, wherein: in the first phase, the controller (140) controls the motor (15) to whip the food material at a first rotational speed; in the second and third phases, the controller (140) controls the motor (15) to whip the food material at a second rotational speed, wherein the first rotational speed is greater than the second rotational speed.
6. The processor operating circuit of claim 1, wherein: the zero-crossing detection circuit (120) includes a pull-down resistor connected in series between the signal output terminal and a ground terminal.
7. The processor operating circuit of claim 6, wherein: the zero-crossing detection circuit (120) comprises a diode connected in series between the power supply and the signal output end, the anode of the diode is connected with one end of the power supply, and the cathode of the diode is connected with the signal output end.
8. The processor operating circuit of claim 7, wherein: the zero-crossing detection circuit (120) further includes a current limiting resistor in series with the diode.
9. The processor operating circuit of claim 1, wherein: the temperature sensor (130) is disposed on the heating assembly.
10. A cooking machine, its characterized in that: the method comprises the following steps:
the host (11) comprises a host shell (14), a motor (15) and a main control board (16), wherein the motor (15) and the main control board are arranged in the host shell (14);
the cup body assembly (12) is arranged on the host machine (11), and the cup body assembly (12) comprises a heating assembly (17) assembled at the bottom of the cup body assembly (12); and
the food processor work circuit (100) for tamper-proofing of any of claims 1 to 9, at least a portion of the food processor work circuit (100) being disposed on the main control board (16).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020847058.0U CN212755374U (en) | 2020-05-19 | 2020-05-19 | Food processor working circuit for preventing bottom from being burnt and food processor |
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| CN202020847058.0U CN212755374U (en) | 2020-05-19 | 2020-05-19 | Food processor working circuit for preventing bottom from being burnt and food processor |
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| CN212755374U true CN212755374U (en) | 2021-03-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114364063A (en) * | 2022-01-21 | 2022-04-15 | 深圳市飞象智能家电科技有限公司 | Zero-crossing counting heating control circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114364063A (en) * | 2022-01-21 | 2022-04-15 | 深圳市飞象智能家电科技有限公司 | Zero-crossing counting heating control circuit |
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