CN110694785A - Control circuit and control method of food waste disposer - Google Patents
Control circuit and control method of food waste disposer Download PDFInfo
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- CN110694785A CN110694785A CN201911041091.2A CN201911041091A CN110694785A CN 110694785 A CN110694785 A CN 110694785A CN 201911041091 A CN201911041091 A CN 201911041091A CN 110694785 A CN110694785 A CN 110694785A
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 239000010794 food waste Substances 0.000 title claims abstract description 32
- 239000000645 desinfectant Substances 0.000 claims abstract description 36
- 238000001514 detection method Methods 0.000 claims abstract description 27
- 239000002699 waste material Substances 0.000 claims abstract description 8
- 239000010813 municipal solid waste Substances 0.000 claims description 76
- 239000003990 capacitor Substances 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 8
- 229910052710 silicon Inorganic materials 0.000 claims description 8
- 239000010703 silicon Substances 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 4
- MKGHDZIEKZPBCZ-ULQPCXBYSA-N methyl (2s,3s,4r,5r,6r)-4,5,6-trihydroxy-3-methoxyoxane-2-carboxylate Chemical compound CO[C@H]1[C@H](O)[C@@H](O)[C@H](O)O[C@@H]1C(=O)OC MKGHDZIEKZPBCZ-ULQPCXBYSA-N 0.000 claims 14
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 3
- 241000894006 Bacteria Species 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract description 2
- 230000007774 longterm Effects 0.000 abstract description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 9
- 229910052782 aluminium Inorganic materials 0.000 description 9
- 230000001105 regulatory effect Effects 0.000 description 5
- 230000033228 biological regulation Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 108010059419 NIMA-Interacting Peptidylprolyl Isomerase Proteins 0.000 description 1
- 108010037490 Peptidyl-Prolyl Cis-Trans Isomerase NIMA-Interacting 4 Proteins 0.000 description 1
- 102100026114 Peptidyl-prolyl cis-trans isomerase NIMA-interacting 1 Human genes 0.000 description 1
- 102100031653 Peptidyl-prolyl cis-trans isomerase NIMA-interacting 4 Human genes 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000010806 kitchen waste Substances 0.000 description 1
- 235000021190 leftovers Nutrition 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C25/00—Control arrangements specially adapted for crushing or disintegrating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/04—Safety devices
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
- E03C1/26—Object-catching inserts or similar devices for waste pipes or outlets
- E03C1/266—Arrangement of disintegrating apparatus in waste pipes or outlets; Disintegrating apparatus specially adapted for installation in waste pipes or outlets
- E03C1/2665—Disintegrating apparatus specially adapted for installation in waste pipes or outlets
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
The invention discloses a control circuit and a control method of a food waste disposer, wherein a current detection circuit is used for collecting a current value in the working process of the waste disposer, an output voltage adjusting circuit is used for providing working voltage for the connected waste disposer, a waterway solenoid valve control circuit is used for receiving an instruction of an MCU and controlling the opening and closing of the connected waterway solenoid valve according to the instruction, a disinfectant pump control circuit is used for receiving the instruction of the MCU and controlling the opening and closing of a connected disinfectant pump according to the instruction, and a switch signal circuit is used for detecting opening and closing signals of the waste disposer and providing the signals to the MCU. The food waste disposer overcomes the defects of insufficient intelligent degree, no disinfection function and potential safety hazard of the existing waste disposer, realizes the intelligent control of the food waste disposer, greatly improves the automation level and competitiveness of products, ensures the safety of operation, and reduces peculiar smell and bred bacteria after long-term use.
Description
Technical Field
The present invention relates to a control circuit and a control method, and more particularly, to a control circuit and a control method for a food waste disposer.
Background
A food waste disposer is a household appliance for disposing kitchen waste, can grind leftovers and carry out harmless treatment, effectively avoids the problems of sewer blockage, kitchen peculiar smell and the like, and is popular and loved by more and more families. The food waste disposer is generally installed below a kitchen sink, and discharges food waste into a sewer after crushing the food waste by driving a cutter head through a motor.
The not enough of present food waste disposer existence is many, for example after pressing starting switch, whether the lid of food waste disposer covers, the machine all can start, if do not cover food waste disposer's lid, though there is the rubber pad, still there is the potential safety hazard in the high-speed during operation of machine, another, present food waste disposer handles the during operation, no matter how much food waste put in inside, equal high-speed operation of full voltage, the noise is bigger, extravagant electric energy, and need manual shutdown, close water, intelligent degree is not enough, furthermore, present food waste disposer generally does not have the disinfection function, the machine is used for a long time, there is peculiar smell and bacterial growing. Therefore, in order to solve these problems, a control circuit and a control method capable of controlling the food waste disposer to solve the above-mentioned problems are required.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a control circuit and a control method of a food waste disposer, and solves the defects of insufficient intelligent degree, no disinfection function and potential safety hazard of the existing waste disposer.
The technical scheme is as follows: the control circuit of the food waste disposer of the invention comprises: the device comprises a power supply circuit, a current detection circuit, an output voltage adjusting circuit, a waterway electromagnetic valve control circuit, a disinfectant pump control circuit, an MCU and a switch signal circuit;
the power supply circuit is used for supplying power to the control circuit and the devices connected with the control circuit;
the current detection circuit is connected with the MCU and is used for collecting a current value in the working process of the garbage disposer and providing a current value signal to the MCU;
the output voltage adjusting circuit is connected with the MCU and used for receiving the instruction of the MCU and providing working voltage for the connected garbage processor according to the instruction;
the waterway electromagnetic valve control circuit is connected with the MCU and used for receiving the instruction of the MCU and controlling the opening and closing of the connected waterway electromagnetic valve according to the instruction;
the disinfectant pump control circuit is connected with the MCU and used for receiving the instruction of the MCU and controlling the opening and closing of the connected disinfectant pump according to the instruction;
and the switching signal circuit is used for detecting the opening and closing signals of the garbage disposer and providing the signals to the MCU.
Furthermore, the garbage disposer also comprises an indicating circuit, wherein the indicating circuit is connected with the MCU and used for prompting the working state of the garbage disposer.
Further, the current detection circuit comprises a current transformer L1, a diode D3, a capacitor C1, a resistor R3 and a diode D10, wherein the current transformer L1 is connected with a live wire, the diode D3, the capacitor C1 and GND, the resistor R3 is connected with a capacitor C1, a diode D10, GND and an I/O port of the MCU, and the diode D10 is connected with +5V and the I/O port of the diode D3, the capacitor C1, the resistor R3 and the MCU.
Further, the output voltage adjusting circuit comprises a controlled silicon TR1, a resistor R11, a resistor R12, an optical coupler U1 and a resistor R13, the controlled silicon TR1 is connected with a live wire and a garbage disposer, the optical coupler U1 is connected with I/O ports of the resistor R11, the resistor R12, the controlled silicon TR1, the resistor R13 and an MCU, and the resistor R13 is connected with the optical coupler U1 and + 5V.
Furthermore, the waterway solenoid valve control circuit comprises a relay K1, a diode D5, a triode Q1, a resistor R4 and a resistor R7, wherein the relay K1 is connected with a live wire and a waterway solenoid valve, the triode Q1 is connected with the relay K1, the diode D5, the resistor R4, the resistor R7 and GND, the diode D5 is connected with +12V and the triode Q1, and the resistor R7 is connected with the triode Q1, the resistor R4 and an I/O port of the MCU.
Furthermore, the disinfectant pump control circuit comprises a diode D6, a triode Q3, a resistor R5 and a resistor R8, the diode D6 is connected with the disinfectant pump and a +12V and triode Q3, the triode Q3 is connected with the resistor R5, the resistor R8 and GND, and the resistor R8 is connected with the triode Q3, the resistor R5 and an I/O port of the MCU.
Furthermore, the switching signal circuit comprises a Hall IC U5, a resistor R10, a resistor R15 and a resistor R16, the Hall IC U5 is connected with the resistor R15, the resistor R10, the resistor R16 and GND, the resistor R15 is connected with the resistor R16, the Hall IC U5 and an I/O port of the MCU, and the resistor R16 is connected with the resistor R15, the resistor R10 and + 5V.
The control method of the food waste disposer based on the control circuit comprises the following steps: a starting method, a first closing method and a second closing method of the garbage processor,
the starting method comprises the steps of firstly starting the water path electromagnetic valve after detecting a starting signal, then starting the garbage processor, detecting the working current of a loop of the garbage processor in real time, and adjusting the working voltage of a connecting port of the garbage processor in real time according to the working current of the loop;
the first closing method comprises the steps of detecting the working current of a loop of the garbage disposer in real time, sending a prompt of finishing garbage disposal when the working current is smaller than a first set value, starting a disinfectant pump to spray a disinfectant, closing the disinfectant pump, closing the garbage disposer after the first set time is reached, and closing the water path electromagnetic valve after the second set time is reached, wherein the first set time is smaller than the second set time;
the second closing method is that after the closing signal is detected, the garbage processor is immediately closed, and the waterway electromagnetic valve is closed after the third set time is reached.
Further, the starting method specifically comprises the following steps:
(1) after the switching signal circuit detects the opening signal, the MCU sends an instruction to the waterway solenoid valve control circuit, and the waterway solenoid valve control circuit controls the opening of the waterway solenoid valve;
(2) starting the waste disposer after the waterway solenoid valve is opened to work for a fourth set time;
(3) the current detection circuit detects the current of the loop of the garbage disposer in real time, if the current is smaller than a second set value, the output voltage adjusting circuit adjusts the output voltage to be half of the input voltage, and if the current is larger than or equal to the second set value, the output voltage adjusting circuit adjusts the output voltage to be the whole input voltage.
Further, the first closing method specifically includes:
(1) the current detection circuit detects the current of the loop of the garbage disposer in real time, if the current is smaller than a second set value, the output voltage adjusting circuit adjusts the output voltage to be half of the input voltage, detection is continued, and if the current is smaller than a first set value, the step (2) is carried out;
(2) the MCU sends a control signal to the indicating circuit to send a prompt of completion of garbage treatment;
(3) the MCU sends a control signal to the disinfectant pump control circuit to control the disinfectant pump to spray disinfectant;
(4) after the first set time is reached, the MCU closes the garbage processor;
(5) after the second set time is reached, the MCU sends a control signal to the waterway solenoid valve control circuit, and the waterway solenoid valve is closed;
the second closing method specifically comprises the following steps:
(1) the switching signal circuit detects a closing signal and informs the MCU;
(2) the MCU closes the garbage processor;
(3) and after the third set time is reached, the MCU sends a control signal to the waterway solenoid valve control circuit and closes the waterway solenoid valve.
Has the advantages that: the automatic water boiling device can automatically start and boil water of the garbage disposer, automatically adjust the working power of the garbage disposer according to the amount of garbage, reduce noise, save energy consumption, automatically judge whether the food garbage is treated, automatically close the garbage disposer, automatically put in disinfectant and automatically turn off water, realize intelligent control of the food garbage disposer, and greatly improve the automation level and competitiveness of products. In addition, the switch signal circuit can detect whether the cover of the processor is covered, if the cover is opened, the processor is stopped to operate in time, the operation safety is ensured, an automatic disinfectant throwing function is further arranged for the garbage processor, and peculiar smell and breeding bacteria for long-term use are reduced.
Drawings
FIG. 1 is a diagram of a connection structure of a control circuit of the present invention;
fig. 2 is a circuit diagram of the control circuit of the present embodiment.
Detailed Description
The connection structure of the control circuit of the food waste disposer is shown in fig. 1, and comprises a live wire 1, a zero wire 2, a control module 3, a switching signal circuit 4, a waste disposer 5, an indicating circuit 6, a disinfectant pump 7 and a waterway electromagnetic valve 8, wherein the control module 3 comprises a power supply circuit 31, a zero-crossing detection circuit 32, a current detection circuit 33, an output voltage adjusting circuit 34, a waterway electromagnetic valve control circuit 35, a disinfectant pump control circuit 36 and an MCU 37. Control module 3 connects live wire 1 and zero line 2, and refuse processor 5, disinfectant pump 7 and water route solenoid valve 8 are connected between control module 3 and zero line 2, and switching signal circuit 4 is connected with control module 3, and indicating circuit 6 is connected with control module 3. The specific circuit of this embodiment is shown in fig. 2.
The power circuit 31 includes an isolation power circuit and a non-isolation power circuit, and the non-isolation power circuit in this embodiment specifically includes a FUSE1, a resistor RA1, an RA21, a voltage dependent resistor MOV1, an X2 capacitor CX1, a diode D4, a diode D7, an aluminum electrolytic capacitor EC1, an inductor L2, an aluminum electrolytic capacitor EC2, a chip U3, an aluminum electrolytic capacitor EC3, a diode D8, a diode D9, an inductor L4, a resistor R14, an R17, an aluminum electrolytic capacitor EC6, a resistor R18, a voltage stabilization chip U4, an aluminum electrolytic capacitor EC5, and a capacitor C6. FUSE1 is connected with neutral wire 2 and resistor RA1 piezoresistors MOV1, X2 capacitor CX1, diode D4, diode D7 and D4, aluminum electrolytic capacitor EC1 and inductor L2, PIN5,7 and 8 PINs of chip U3 are connected with inductor L2, PIN4 PIN of chip U3 is connected with aluminum electrolytic capacitor EC3 and diode D8, PIN1 and 2 PINs of chip U3 are connected with aluminum inductor L4 and diode D9, resistors R14 and R17 are connected with diode D8, inductor L4, capacitor EC6, resistor R18 and the input PIN of voltage stabilizing chip U4, and aluminum electrolytic capacitor EC5 and capacitor C6 are connected with the output PIN of voltage stabilizing chip U4. And providing the +12V and +5V working voltages for the related circuits.
The zero-crossing detection circuit 32 comprises resistors R1 and R2 and diodes D1 and D2. The resistor R1 is connected with a FUSE FUSE1 and a resistor R2 of the power circuit 31, the diode D1 is connected with +5V and the resistor R2, the diode D2 and an I/O port of the MCU, and the diode D2 is connected with GND, the resistor R2, the diode D1 and the I/O port of the MCU, so that a zero-crossing point signal of alternating current is provided for the output voltage adjusting circuit 34.
The current detection circuit 33 includes a current detection circuit formed by a current transformer or a sampling resistor, and the current detection circuit formed by a transformer in this embodiment specifically includes a current transformer L1, a diode D3, a capacitor C1, a resistor R3, and a diode D10. The current transformer L1 is connected with the live wire 1, the diode D3, the capacitor C1 and GND, the resistor R3 is connected with the capacitor C1, the diode D10 and GND, and the I/O port of the MCU is connected, and the diode D10 is connected with +5V, the diode D3, the capacitor C1, the resistor R3 and the I/O port of the MCU. The current detection circuit 33 collects the current value of the garbage processor in real time in the working process and provides a current value signal for the output voltage adjusting circuit 34 to work.
The output voltage adjusting circuit 34 includes an output voltage adjusting circuit composed of a thyristor or an IGBT, and an MOS transistor, and the output voltage adjusting circuit composed of a thyristor in this embodiment specifically includes a thyristor TR1, a resistor R11, a resistor R12, an optocoupler U1, and a resistor R13. Silicon controlled rectifier TR1 is connected with live wire 1, refuse treatment ware 5, and opto-coupler U1 and resistance R11, R12, and silicon controlled rectifier TR1, resistance R13, MCU's IO mouth is connected, and resistance R13 is connected with opto-coupler and +5V, receives MCU 37's control, provides operating voltage for refuse treatment ware 5 work.
The water path electromagnetic valve control circuit 35 comprises a relay K1, a diode D5, a triode Q1 and resistors R4 and R7. The relay K1 is connected with the live wire 1 and the waterway solenoid valve, the triode pipe Q1 is connected with the relay, the diode D5, the resistor R4, the resistor R4 and the GND are connected, the diode D5 is connected with the +12V and the triode Q1, the resistor R7 is connected with the triode Q1, the resistor R4 and an I/O port of the MCU, and the opening and the closing of the waterway solenoid valve 8 are automatically controlled under the control of the MCU 37.
The disinfectant pump control circuit 36 comprises a diode D6, a triode Q3, a resistor R5 and a resistor R8. The diode D6 is connected with the disinfectant pump and +12V, the triode Q3 is connected, the triode Q3 is connected with the resistors R5, R8 and GND, the resistor R8 is connected with the triode Q3, the resistor R5 and an I/O port of the MCU, and the opening and closing of the disinfectant pump 7 are automatically controlled under the control of the MCU 37.
The MCU37 is a general-purpose microcontroller.
The switch signal circuit 4 is a switch signal detection circuit comprising a Hall IC or a reed switch or a microswitch or a proximity switch or a photoelectric sensing switch, and the like, and is matched with corresponding elements arranged on the cover of the garbage disposer to sense whether the cover is correctly covered on the garbage disposer. When the cover is correctly covered, the switch signal circuit 4 sends an opening signal, and when the cover is taken away or is not correctly covered, the switch signal circuit 4 sends a closing signal. The switch signal circuit 4 and the starting switch of the garbage disposer work together in a matched mode, and the running safety of the garbage disposer is improved. The switching signal detection circuit formed by the hall IC in this embodiment specifically includes a hall IC U5, a resistor R10, an R15, an R16, a hall IC U5 connected to resistors R15, R10, R16 and GND, a resistor R15 connected to a resistor R16, a hall IC U5, and an I/O port of the MCU, a resistor R16 connected to a resistor R15, and a resistor R10, + 5V. Which controls the garbage disposer 5 to turn on and off by sending an on/off signal to the MCU 37.
The indicating circuit 6 includes an indicating circuit formed by a buzzer, a horn, an LED lamp, or the like, and the indicating circuit formed by the buzzer in the embodiment includes a buzzer BUZ, resistors R5, R9, and a transistor Q2. The buzzer BUZ is connected with +12V, the resistor R6 and the triode Q2, the triode Q2 is connected with GND, the resistor R6 and the buzzer BUZ, the resistor R9 is connected with the triode Q2, and an I/O port of the MCU is connected and controlled by the MCU37 to prompt the working state of the garbage disposer 5.
The present embodiment further provides a control method of a food waste disposer, which is based on the above circuit, and specifically includes:
the switch signal circuit 4 informs the MCU37 after detecting the opening signal, the MCU37 controls the waterway solenoid valve 8 to be opened and operated for about 10 seconds firstly, the garbage processor 5 starts to be started, the current detection circuit 33 detects the working current of a loop of the garbage processor 5 in real time, if the working current is less than a set current value A, the MCU37 controls the output voltage of the output voltage regulating circuit 34 to be half of the input voltage, if the working current is more than or equal to the set current value A, the output voltage of the output voltage regulating circuit 34 is the whole input voltage, and the detection current and the voltage regulation are real-time processes;
after the garbage processor 5 enters the full voltage state, the current detection circuit 33 still detects the working current of the garbage processor 5 loop in real time, if the working current is found to be less than the set current value A, indicating that the garbage processor 5 has a small load and does not need to work at full voltage, the output voltage of the output voltage regulating circuit 34 is half of the input voltage, if the working current is less than the set current value B, which indicates that the garbage is basically treated, the MCU37 controls the indicating circuit 4 to emit continuous dripping sound to indicate that the garbage is treated completely, meanwhile, the disinfectant pump 7 is turned on for a period of time and then turned off through the disinfectant pump control circuit 36, the garbage processor 5 keeps the half-voltage state for a period of time, after the set time is reached, the MCU37 controls the garbage processor 5 to be closed, and after a time delay, the waterway electromagnetic valve 8 is closed, wherein the current value B is smaller than the current value A;
when the cover is suddenly opened or is in a state of not being covered correctly, the switch signal circuit 4 detects a closing signal and informs the MCU37, the MCU37 closes the garbage processor, and after a period of time, the MCU37 sends a control signal to the waterway solenoid valve control circuit 35 to close the waterway solenoid valve.
The method comprises the following specific processes from system starting to system closing:
after the switch signal circuit 4 detects the opening signal, the waterway electromagnetic valve is firstly opened for about 10 seconds, the garbage processor 5 starts to start, and the output voltage of the output voltage regulating circuit 34 of the control module 3 is slowly increased, so that the working voltage of the garbage processor 5 is slowly increased to achieve stable starting. After the system is started, the current detection circuit 33 of the control module 3 starts to detect the working current of the loop of the garbage processor 5 in real time, and when the working current is smaller than a preset current value A, the voltage regulation output circuit outputs half of the alternating current, namely the output voltage is half of the input voltage; when the current detection circuit 33 of the control module 3 detects that the working current of the loop of the garbage disposer 5 is larger than the preset current value a, the output voltage regulation circuit 34 of the control module 3 outputs all alternating current, namely the output voltage is all input voltage, and garbage is quickly disposed. When the garbage is less and less, and the working current of the loop of the garbage processor 5 is smaller than the preset current value A, the output voltage regulating circuit 34 of the control module 3 outputs half of the alternating current again so as to achieve the purpose of saving the electric energy; when the garbage is treated completely and the working current of the loop of the garbage processor 5 is smaller than the preset current value B, the system knows that the garbage is treated completely, the indicating circuit 4 sends continuous dripping sound to prompt that the garbage is treated completely, meanwhile, the disinfectant pump 7 is turned on for a period of time and then turned off, the garbage processor 5 continues to keep in a half-voltage state for a period of time, after the set time is reached, the control module 3 controls the garbage processor 5 to be turned off automatically, after a period of time is delayed, the water path electromagnetic valve 8 is turned off automatically, and the indicating circuit 4 stops sending the dripping sound. In the working process, if the control module 3 detects the closing signal of the switch signal circuit 4, the work of the garbage processor 5, the waterway electromagnetic valve 8 and the disinfectant pump 7 is immediately stopped until the opening signal of the switch signal circuit 4 is detected again.
Claims (10)
1. A control circuit for a food waste disposer, comprising: a power supply circuit (31), a current detection circuit (33), an output voltage adjusting circuit (34), a water path electromagnetic valve control circuit (35), a disinfectant pump control circuit (36), an MCU (37) and a switch signal circuit (4);
a power supply circuit (31) for supplying power to the control circuit and devices connected thereto;
the current detection circuit (33) is used for collecting the current value of the garbage disposer in the working process and providing a current value signal to the MCU (37);
the output voltage adjusting circuit (34) is used for receiving the instruction of the MCU (37) and providing working voltage for the connected garbage processor according to the instruction;
the waterway electromagnetic valve control circuit (35) is used for receiving the instruction of the MCU (37) and controlling the opening and closing of the connected waterway electromagnetic valve according to the instruction;
the disinfectant pump control circuit (36) is used for receiving the instruction of the MCU (37) and controlling the on and off of the connected disinfectant pump according to the instruction;
and a switching signal circuit (4) for detecting the on and off signals of the garbage disposer and supplying the signals to the MCU (37).
2. The control circuit of a food waste disposer of claim 1, wherein: the garbage disposer also comprises an indicating circuit (6), wherein the indicating circuit (6) is connected with the MCU (37) and used for prompting the working state of the garbage disposer.
3. The control circuit of a food waste disposer of claim 1, wherein: the current detection circuit (33) comprises a current transformer L1, a diode D3, a capacitor C1, a resistor R3 and a diode D10, wherein the current transformer L1 is connected with a live wire, the diode D3, the capacitor C1 and GND, the resistor R3 is connected with I/O ports of a capacitor C1, a diode D10, GND and an MCU (37), and a diode D10 is connected with +5V and the I/O ports of the diode D3, the capacitor C1, the resistor R3 and the MCU (37).
4. The control circuit of a food waste disposer of claim 1, wherein: the output voltage adjusting circuit (34) comprises a controlled silicon TR1, a resistor R11, a resistor R12, an optocoupler U1 and a resistor R13, the controlled silicon TR1 is connected with a live wire and a garbage disposer, the optocoupler U1 is connected with I/O ports of the resistor R11, the resistor R12, the controlled silicon TR1, the resistor R13 and an MCU (37), and the resistor R13 is connected with the optocoupler U1 and + 5V.
5. The control circuit of a food waste disposer of claim 1, wherein: the waterway solenoid valve control circuit (35) comprises a relay K1, a diode D5, a triode Q1, a resistor R4 and a resistor R7, wherein the relay K1 is connected with a live wire and a waterway solenoid valve, the triode Q1 is connected with the relay K1, the diode D5, the resistor R4, the resistor R7 and GND, the diode D5 is connected with +12V and the triode Q1, and the resistor R7 is connected with I/O ports of the triode Q1, the resistor R4 and the MCU (37).
6. The control circuit of a food waste disposer of claim 1, wherein: the disinfectant pump control circuit (36) comprises a diode D6, a triode Q3, a resistor R5 and a resistor R8, the diode D6 is connected with a disinfectant pump and a +12V triode Q3, the triode Q3 is connected with the resistor R5, the resistor R8 and GND, and the resistor R8 is connected with the I/O ports of the triode Q3, the resistor R5 and the MCU (37).
7. The control circuit of a food waste disposer of claim 1, wherein: the switching signal circuit (4) comprises a Hall IC U5, a resistor R10, a resistor R15 and a resistor R16, wherein the Hall IC U5 is connected with the resistor R15, the resistor R10, the resistor R16 and GND, the resistor R15 is connected with the resistor R16, the Hall IC U5 and an I/O port of the MCU, and the resistor R16 is connected with the resistor R15, the resistor R10 and + 5V.
8. A control method of a food waste disposer based on the control circuit of any one of claims 1 to 7, comprising: a starting method, a first closing method and a second closing method of the garbage processor,
the starting method comprises the steps of firstly starting the water path electromagnetic valve after detecting a starting signal, then starting the garbage processor, detecting the working current of a loop of the garbage processor in real time, and adjusting the working voltage of a connecting port of the garbage processor in real time according to the working current of the loop;
the first closing method comprises the steps of detecting the working current of a loop of the garbage disposer in real time, sending a prompt of finishing garbage disposal when the working current is smaller than a first set value, starting a disinfectant pump to spray a disinfectant, closing the disinfectant pump, closing the garbage disposer after the first set time is reached, and closing the water path electromagnetic valve after the second set time is reached, wherein the first set time is smaller than the second set time;
the second closing method is that after the closing signal is detected, the garbage processor is immediately closed, and the waterway electromagnetic valve is closed after the third set time is reached.
9. The control method of a food waste disposer of claim 8, wherein the starting method is specifically:
(1) after the switch signal circuit (4) detects the opening signal, the MCU (37) sends an instruction to the waterway solenoid valve control circuit (35), and the waterway solenoid valve control circuit (35) controls the waterway solenoid valve to be opened;
(2) starting the waste disposer after the waterway solenoid valve is opened to work for a fourth set time;
(3) the current detection circuit (33) detects the current of the loop of the garbage disposer in real time, if the current is smaller than a second set value, the output voltage adjusting circuit (34) adjusts the output voltage to be half of the input voltage, and if the current is larger than or equal to the second set value, the output voltage adjusting circuit (34) adjusts the output voltage to be the whole input voltage.
10. The control method of a food waste disposer of claim 8, wherein the first shut down method is specifically:
(1) the current detection circuit (33) detects the current of the loop of the garbage disposer in real time, if the current is smaller than a second set value, the output voltage adjustment circuit (34) adjusts the output voltage to be half of the input voltage, detection is continued, and if the current is smaller than a first set value, the step (2) is carried out;
(2) the MCU (37) sends a control signal to the indicating circuit to send a prompt of completion of garbage treatment;
(3) the MCU (37) sends a control signal to the disinfectant pump control circuit (36) to control the disinfectant pump to spray disinfectant;
(4) after the first set time is reached, the MCU (37) closes the garbage processor;
(5) after the second set time is reached, the MCU (37) sends a control signal to the waterway electromagnetic valve control circuit (35) and closes the waterway electromagnetic valve;
the second closing method specifically comprises the following steps:
(1) the switch signal circuit (4) detects the closing signal and informs the MCU (37);
(2) the MCU (37) shuts down the garbage disposer;
(3) and after the third set time is reached, the MCU (37) sends a control signal to the waterway electromagnetic valve control circuit (35) and closes the waterway electromagnetic valve.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111733940A (en) * | 2020-04-16 | 2020-10-02 | 韦忠斌 | Garbage processor and intelligent water and electricity free control method |
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