Capacity expansion method of household kitchen waste processor

Abstract

The application discloses a capacity expansion method of a household kitchen garbage processor. After starting a processing program, a control unit continuously detects and records the temperature and relative humidity of a temperature and humidity detection point through a detection element arranged at the temperature and humidity detection point of the kitchen garbage processor through a detection step. Through a judgment and reminding step, the control unit calculates and judges whether the temperature rising speed of the detected temperature is not higher than a set threshold value. When the temperature rising speed is not higher than the threshold value, the user is reminded to open the cover again and add garbage to the processing barrel through an audible and visual reminding mode. The control unit continues to run the processing program after closing the cover. The application expands the garbage processing capacity of the household kitchen garbage processor to more than 3 times of the actual physical capacity, so that the small-capacity household kitchen garbage processor has the ability to process large-capacity garbage.

Description

Technical Field

[0001] The present invention relates to the technical field of household food waste disposer control systems, and in particular to a capacity expansion method for a household food waste disposer. Background Art

[0002] Household food waste disposers are used to ferment, dry and convert food waste into fertilizer. When using a household food waste disposer, first load food waste into the processing barrel, and then start the processing program of the household food waste disposer. The household food waste disposer runs according to the steps set by the processing program without interruption. The household food waste disposer runs from startup until the entire program is completed and finally shuts down automatically. The entire time period from startup to shutdown during the garbage processing process of the household food waste disposer is relatively long. Once the food waste disposer starts the working program, the continuous working time is often more than several hours, or even more than 20 hours.

[0003] The maximum single-time capacity of a household food waste disposer is limited by the actual capacity of the disposal bucket. For the average household user, a large-capacity household food waste disposer with a disposal bucket capacity of 5 liters or more is generally sufficient for daily use. However, large-capacity household food waste disposers are expensive and bulky, making them unsuitable for placement in the kitchen.

[0004] Therefore, how to increase the waste disposal capacity of household food waste disposers needs to be studied. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a method for expanding the capacity of a household food waste disposer, which provides and allows users to add garbage multiple times at appropriate times during the operation of the processing program, thereby increasing the capacity and processing capacity of the household food waste disposer.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is: a method for expanding the capacity of a household food waste disposer, comprising the following steps:

[0007] A starting step, after the lid of the household food waste disposer is closed, the control unit starts the processing program, and the household food waste disposer starts heating the processing bucket for storing food waste through the heating element to start processing the waste;

[0008] a detection step, after starting the processing program, the control unit continuously detects and records the temperature and relative humidity at the temperature and humidity detection points through detection elements provided at the temperature and humidity detection points of the food waste disposer;

[0009] In a judgment and reminder step, the control unit calculates and determines whether the temperature rise rate of the detected temperature is higher than a set threshold. If the temperature rise rate is higher than the set threshold, the control unit determines that the initial temperature rise stage has been completed and issues a reminder signal to add garbage, reminding the user to open the lid again and add garbage to the disposal bin through an audible and visual reminder;

[0010] In the step of adding garbage, after the control unit sends a reminder signal for adding garbage and receives a cover-opening signal indicating that the lid is opened or a control signal for adding garbage, the control unit pauses the processing program to provide the user with an opportunity to add garbage, and continues to run the processing program after the control unit receives a cover-closing signal indicating that the lid is closed or a control signal for continuing to run the processing program.

[0011] In a further technical solution, in the detection step, when the household food waste disposer completes the initial heating stage, the volume of the waste in the processing barrel is reduced to 20-30% of the original volume;

[0012] In the step of adding garbage, the control unit cyclically executes the step of determining and the step of adding garbage while continuing to run the processing program, providing the user with multiple opportunities and reminders to add garbage;

[0013] The heating element includes a heating plate, which is arranged below the processing barrel, and the cover is arranged above the processing barrel.

[0014] A further technical solution is that in the detection step, the temperature and humidity detection point is set in the manifold or air duct of the food waste disposer for exhausting air flow; the control unit calculates the heating rate based on the temperature detected at the temperature and humidity detection point and the detection time interval,

[0015] If the heating rate within three minutes is greater than 2°C, it is determined that the household food waste disposer has not completed the initial heating stage, the processing program continues to run, and the control unit continues to record the temperature and calculate the heating rate.

[0016] If the heating rate within three minutes is less than or equal to 2°C, it is determined that the household food waste disposer has completed the initial heating stage, and the control unit sends the reminder to add garbage.

[0017] According to a further technical solution, the household food waste disposer processes food waste in the treatment barrel in the following stages: an initial heating stage, an evaporation stage, a drying stage, a heat preservation stage, and a cooling stage;

[0018] The processing program includes an initial heating subroutine corresponding to the initial heating stage, an evaporation subroutine corresponding to the evaporation stage, a drying subroutine corresponding to the drying stage, a heat preservation subroutine corresponding to the heat preservation stage, and a cooling subroutine corresponding to the cooling stage.

[0019] The control unit sequentially executes the initial temperature raising subroutine, the evaporation subroutine, the drying subroutine, the heat preservation subroutine and the cooling subroutine according to the progress of the treatment stage;

[0020] The control unit calculates and determines whether the current processing stage is completed based on the temperature and relative humidity detected at the temperature and humidity detection point. When the control unit determines that the current processing stage is completed, the control unit executes a subroutine corresponding to the next processing stage and sends a reminder signal, indicating the completed processing stage and / or the current processing stage by means of sound and light reminders;

[0021] The sound and light reminder method includes prompting through light, prompting through text symbol information, prompting through voice or prompting through buzzer alarm.

[0022] A further technical solution is that when the control unit determines that the evaporation stage has been completed and jumps to the drying stage, the control unit again sends a garbage adding reminder signal and simultaneously executes the garbage adding step, and reminds the user to open the lid again and add garbage to the processing barrel through sound and light reminders.

[0023] In a further technical solution, the household food waste disposer is provided with indicator lights corresponding to the initial heating stage, evaporation stage, drying stage, heat preservation stage and cooling stage;

[0024] The indicator light can indicate the following:

[0025] 1) The control unit controls the corresponding indicator light to light up or flash to indicate the completed processing stage.

[0026] 2) The control unit controls the corresponding indicator light to light up or flash to represent the current processing stage that has been completed.

[0027] 3) The control unit controls the corresponding indicator light to flash in different colors to remind the user to open the lid again and add garbage to the disposal bin.

[0028] In a further technical solution, a saturated water vapor pressure-temperature comparison table is stored in the control unit.

[0029] The saturated water vapor pressure temperature comparison table provides the saturated water vapor pressure values ​​corresponding to different temperatures under one atmospheric pressure condition.

[0030] After starting the processing program, the control unit records the temperature T0 and relative humidity U0 of the drying starting point when the heating element is started to start drying.

[0031] The target humidity value U is calculated during the heat preservation stage. bAfter detecting that the current relative humidity U1 is lower than 40-80% and the current detected temperature T1 is basically stable, the control system looks up the saturated water vapor pressure temperature comparison table to obtain the saturated water vapor pressure e corresponding to the temperature T0. c0 And the saturated water vapor pressure e corresponding to the temperature T1 c1 , and calculate the target humidity value U according to the following calculation formula b ,

[0032] U b =e c0 / e c1 *U0+a, a is 1-10%,

[0033] When the current relative humidity is detected to be less than or equal to the target humidity value U b The drying is then stopped. At this time, the garbage in the garbage bin is already in a drying state. The control unit determines that the heat preservation stage has been completed and jumps to the cooling stage.

[0034] A further technical solution is that after the treatment program is started, the initial temperature rise phase begins. The initial temperature rise phase is when the heating element is started to heat the treatment barrel. The initial temperature rise phase includes the process from the bottom temperature of the treatment barrel rising from room temperature to the precipitation of water from the garbage, and then the temperature of the liquid at the bottom of the barrel rising to the highest temperature or even boiling.

[0035] The evaporation stage is a stage in which the liquid at the bottom of the treatment barrel is stabilized at the highest temperature or is in a boiling state. After the thermal equilibrium state is reached in the treatment barrel, the control unit determines that the initial temperature rise stage has been completed and enters the evaporation stage;

[0036] The drying stage is a stage after the liquid at the bottom of the barrel has been evaporated. When the humidity value detected is less than or equal to 50-60%, the control unit determines that the evaporation stage has been completed and enters the drying stage;

[0037] The heat preservation stage is a stage in which the moisture content of the garbage in the treatment barrel has dropped to an extremely low level. When the temperature detected by the temperature and humidity detection point during the evaporation stage is greater than 75°C, the control unit determines that the drying stage has been completed and enters the heat preservation stage.

[0038] The cooling stage is a cooling stage, when it is detected that the current relative humidity is less than or equal to the target humidity value U b The control unit then determines that the drying phase has been completed and enters the cooling phase.

[0039] According to a further technical solution, in the initial heating stage, the control unit executes the initial heating subroutine. After the power is turned on, the control unit controls the heating element to first continuously heat to 150°C, and then controls the heating element to heat intermittently. When the temperature of the heating element is lower than 150°C, the heating is continuously heated, and when the temperature is higher than 165°C, the heating is stopped, and the temperature of the heating element is controlled at 150-165°C.

[0040] In the evaporation stage, the control unit executes the evaporation subroutine. After entering the evaporation stage, the control unit continues to control the heating element to intermittently heat the heating element, and controls the temperature of the heating element to be 150-165° C.;

[0041] In the drying stage, the control unit executes the drying subroutine. After entering the drying stage, the control unit continues to control the heating element to perform intermittent heating. When the temperature of the heating element is lower than 130° C., the heating is continued, and when the temperature is higher than 145° C., the heating is stopped, and the temperature of the heating element is controlled at 130-145° C.;

[0042] During the heat preservation stage, the control unit executes the heat preservation subroutine. After entering the heat preservation stage, the control unit continues to control the heating element to perform intermittent heating, starts intermittent heating when the temperature of the temperature and humidity detection point is lower than 65°C, and stops heating when the temperature of the temperature and humidity detection point reaches 75°C.

[0043] In the cooling stage, the control unit controls the heating element to stop heating and delay shutdown according to the cooling subroutine after entering the cooling stage.

[0044] A further technical solution is to calculate the target humidity value U after detecting that the current relative humidity U1 is lower than 60% and the current detected temperature T1 is basically stable. b .

[0045] The advantages of the present invention over the prior art are that the present invention provides the user with the operation of adding garbage again at an appropriate time during the operation of the processing program, and garbage can be added to the processing bucket multiple times, thereby increasing the processing capacity of the household food waste disposer.

[0046] The present invention expands the garbage processing capacity of a household food waste disposer to more than three times its actual physical capacity, so that a small-capacity household food waste disposer has the ability to process large-capacity garbage. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1-3 This is a data table of the pressure values ​​of saturated water vapor corresponding to different temperatures under one atmospheric pressure condition. DETAILED DESCRIPTION

[0048] A method for expanding the capacity of a household food waste disposer comprises the following steps:

[0049] The starting step is that after the lid of the household food waste disposer is closed, the processing program is started by the control unit, and the processing barrel for storing food waste is heated by the heating element to start processing the waste; the heating element includes a heating plate, which is arranged under the processing barrel.

[0050] In the judgment and reminder step, after the processing program is started, the control unit continuously detects the temperature and relative humidity of the temperature and humidity detection point through the detection element set at the temperature and humidity detection point of the food waste disposer, and the temperature and humidity detection point is set in the manifold or air duct of the food waste disposer for exhausting air flow;

[0051] The control unit calculates and determines whether the temperature rise rate of the detected temperature is higher than the set threshold. If the temperature rise rate is higher than the set threshold, the control unit maintains the normal operation of the processing program. If the temperature rise rate is not higher than the set threshold, the control unit determines that the initial temperature rise stage has been completed and issues a reminder signal to add garbage. After the initial temperature rise stage is completed, the control unit reminds the user to open the lid again and add garbage to the processing bin through sound and light reminders.

[0052] The control unit continuously calculates the heating rate based on the detected temperature and makes a logical judgment based on the heating rate. The specific method is as follows:

[0053] If the heating rate within three minutes is greater than 2°C, it is determined that the household food waste disposer has not completed the initial heating stage. The current working state is maintained and the heating rate is continuously detected and calculated.

[0054] If the heating rate within three minutes is less than or equal to 2°C, it is determined that the household food waste disposer has completed the initial heating stage, and the control unit sends an instruction message or alarm to remind you to add garbage.

[0055] Among them, the control unit continuously records or intermittently records the detected temperature. Three minutes after the first temperature recording, the control unit compares the temperature difference between the current detected temperature and the temperature detected three minutes ago. If the temperature difference is greater than 2°C, it is judged that the household food waste disposer has not completed the initial heating stage. If the temperature difference is less than or equal to 2°C, it is judged that the household food waste disposer has completed the initial heating stage.

[0056] In the step of adding garbage, after the control unit sends a reminder signal for adding garbage and receives a cover-opening signal indicating that the lid is opened or a control signal for adding garbage, the control unit pauses the processing program to provide the user with an opportunity to add garbage, and continues to run the processing program after the control unit receives a cover-closing signal indicating that the lid is closed or a control signal for continuing to run the processing program. The control unit cyclically executes the judgment reminder step and the adding garbage step to provide an opportunity to add garbage to the processing bucket again.

[0057] The control unit calculates and determines whether the current processing stage is completed based on the temperature and relative humidity detected at the temperature and humidity detection point. When the control unit determines that the current processing stage is completed, the control unit executes the subroutine corresponding to the next processing stage and sends a reminder signal, indicating the completed processing stage and / or the current processing stage through sound and light reminders;

[0058] The sound and light reminder methods include light reminders, text symbol information reminders, voice reminders or buzzer alarm reminders.

[0059] For example, a household food waste disposer is provided with indicator lights corresponding to the initial heating stage, evaporation stage, drying stage, heat preservation stage and cooling stage;

[0060] The indicator light can indicate the following:

[0061] 1) The control unit controls the corresponding indicator light to light up or flash to indicate the completed processing stage.

[0062] 2) The control unit controls the corresponding indicator light to light up or flash to represent the current processing stage that has been completed.

[0063] 3) The control unit controls the corresponding indicator light to flash in different colors to remind the user to open the lid again and add garbage to the disposal bin.

[0064] The following further describes the details in conjunction with specific implementation methods.

[0065] During the process of processing food waste in a household food waste disposer, the cell moisture of the food waste is lost after being heated, the fibers become soft, and the volume becomes smaller. The stage where the volume of the food waste is reduced the most is the initial heating stage. After the household food waste disposer completes the initial heating stage, the volume of the garbage in the processing barrel is significantly reduced. This is the best time to add garbage again, because the food waste in the trash can has been reduced to about 25% of the original volume, which varies depending on the different types of garbage, generally reduced to 20-30% of the original volume).

[0066] After the household food waste disposer reminds the user to open the lid again and add waste to the disposal bin through audio and visual reminders, the user decides whether to add waste. Opening the lid pauses the program and closing it resumes the program. If no user opening or closing the lid is detected, the program will not pause and will continue running until all programs are completed, completing the entire waste disposal process.

[0067] After adding new garbage, the processing program continues to run and the processing barrel continues to be heated so that the temperature in the garbage barrel stabilizes again. The volume of the newly added garbage will also be reduced to 20-30% of the original volume. The control unit cyclically executes the judgment step and the garbage adding step to add new garbage to the maximum scale of the processing barrel again. This cycle continues until there is no extra space in the processing barrel, providing the user with multiple opportunities and reminders to add garbage, thereby achieving the purpose of increasing the capacity and processing capacity of the household food waste disposer. The present invention expands the garbage processing capacity of the household food waste disposer to more than 3 times its actual physical capacity, so that a small-capacity household food waste disposer has the ability to process large-capacity garbage.

[0068] The processing stages of kitchen waste in a household kitchen waste disposer include an initial heating stage, an evaporation stage, a drying stage, a heat preservation stage and a cooling stage in sequence; the processing program includes an initial heating subprogram corresponding to working in the initial heating stage, an evaporation subprogram corresponding to working in the evaporation stage, a drying subprogram corresponding to working in the drying stage, a heat preservation subprogram corresponding to working in the heat preservation stage and a cooling subprogram corresponding to working in the cooling stage, and the control unit executes the initial heating subprogram, the evaporation subprogram, the drying subprogram, the heat preservation subprogram and the cooling subprogram in sequence.

[0069] The first stage is the initial warming stage:

[0070] In the initial heating stage, the first indicator light is on, the light is white, and the other indicators are off;

[0071] The initial heating stage is when the heating element is started to heat the treatment barrel and the initial heating stage, including the process of the barrel bottom temperature rising from room temperature, water precipitation from the garbage, and then the liquid temperature at the barrel bottom rising to the highest or even boiling;

[0072] After the treatment process starts running, after the initial temperature rise, the water inside the garbage slowly precipitates out, and liquid water begins to appear at the bottom of the barrel. After that, the space and air duct inside the entire treatment barrel gradually stabilize and reach a thermal equilibrium state. At this time, the volume of the garbage in the treatment barrel shrinks significantly.

[0073] Heating method during the initial heating phase: After powering on, the control unit controls the heating element to heat continuously to 150°C, and then controls the heating element to heat intermittently. When the temperature of the heating element is below 150°C, heating is continued, and when the temperature is above 165°C, heating is stopped, and the temperature of the heating element is controlled within a range of 150-165°C. For example, in the temperature range of 150-165°C, the control unit controls the heating plate to heat for 40 seconds and then cut off for 20 seconds.

[0074] Method for judging whether the initial heating stage is completed: The method for judging whether thermal equilibrium is reached to determine whether the initial heating stage is completed is to determine whether the temperature of the temperature and humidity detection points in the air duct is stable. If the temperature rise does not exceed 2°C within three minutes, it is considered that thermal equilibrium has been reached in the treatment barrel. In the initial heating stage, the air duct temperature is generally designed to be around 55°C, and the temperature values ​​detected by different structures will be different; if the heating rate within three minutes is less than or equal to 2°C, it is judged that the household food waste disposer has completed the initial heating stage and jumped to the evaporation stage.

[0075] The second stage is the evaporation stage:

[0076] After jumping to the evaporation stage, the first indicator light goes out and the second indicator light flashes and turns blue, indicating that the first stage has been completed and jumps to the second stage. At the same time, the buzzer sounds several times to remind the user to add garbage;

[0077] After the initial heating stage, the volume of the garbage in the treatment barrel shrinks significantly, reducing to 20-30% of the original volume. There is a large amount of free space in the treatment barrel, so when it jumps to the evaporation stage, it is the best time to add garbage to the treatment barrel again, and garbage can be added multiple times.

[0078] Specifically, the processing program is paused after the lid is opened, and continues to run after garbage is added and the lid is closed. After adding garbage, the temperature of the detection point in the air duct will first drop and then rise. After the temperature of the detection point stabilizes again, the buzzer will sound again to remind you to add kitchen waste again. This cycle will continue until the user stops adding garbage or the contents of the inner barrel are full and can no longer be added. Then the processing program will continue to run the evaporation subroutine until the evaporation stage ends.

[0079] The evaporation stage is the stage when the liquid at the bottom of the treatment barrel is stable at the highest temperature or in a boiling state. After the thermal equilibrium state is reached in the treatment barrel, the control unit determines that it has entered the evaporation stage;

[0080] Heating method during the evaporation phase: After entering the evaporation phase, the control unit continues to control the heating element to heat intermittently, controlling the temperature of the heating element at 150-165°C. For example, in the temperature range of 150-165°C, the control unit cyclically controls the heating plate to heat for 40 seconds and then turn off for 20 seconds.

[0081] Completion of the evaporation stage is determined by the following method: When the humidity value detected is less than or equal to 60%, the control unit determines that the evaporation stage is completed and jumps to the drying stage.

[0082] The third stage is the drying stage:

[0083] After jumping to the drying stage, the second indicator light goes out and the third indicator light comes on;

[0084] When the control unit determines that the evaporation stage has been completed and jumps to the drying stage, the control unit sends a reminder signal for adding garbage again and executes the step of adding garbage at the same time, and reminds the user to open the lid again and add garbage to the treatment barrel through sound and light reminders. When the control unit determines that it has entered the drying stage, the control unit sends an instruction to add garbage again through the sound and light alarm, and at the same time the third indicator light flashes blue light, reminding the user to add garbage to the treatment barrel again when it is appropriate to add garbage, and executes the step of adding garbage at the same time; if it is confirmed that garbage is not to be added at this time, the control unit controls the heating plate to intermittently heat the treatment barrel, and at the same time the third indicator light turns to white and stays on. When jumping to the drying stage, it is also the time to add garbage to the treatment barrel again. If the user adds garbage again, it is recommended to add kitchen waste that is not easy to clump, so as to avoid the relatively low average heating power of this treatment stage resulting in a long processing time, such as adding kitchen waste of vegetables, fruits and melons.

[0085] Garbage that is not easy to clump after drying is run according to the atomic program. Only the humidity increases first and then decreases, which does not affect normal operation, including heating and drying judgment.

[0086] Heating method in the drying stage: After entering the drying stage, the control unit continues to control the intermittent heating of the heating element. When the temperature of the heating element is lower than 130°C, the heating is continued, and when the temperature is higher than 145°C, the heating is stopped, and the temperature of the heating element is controlled at 130-145°C; for example, in the temperature range of 130-145°C, the control unit cyclically controls the heating plate to power on for 30 seconds and power off for 30 seconds.

[0087] The drying stage is the stage after the liquid at the bottom of the barrel has been evaporated. The liquid water at the bottom of the barrel has been evaporated and the residual moisture in the contents has been significantly reduced. The average heating power in the drying stage is adjusted down to prevent the temperature at the bottom of the barrel from rising too high due to the decrease in evaporation and heat exchange.

[0088] The method for judging whether the drying stage is completed is as follows: when the temperature detected at the temperature and humidity detection point is greater than 75°C (the temperature threshold is adjusted according to the structure), the control unit determines that the drying stage has been completed and jumps to the insulation stage.

[0089] When the temperature at the detection point in the air duct rises to 75°C, it indicates that the moisture content in the contents of the treatment barrel is very low, the evaporation amount is very small, and the air flow temperature has increased.

[0090] The fourth stage is the insulation stage:

[0091] After jumping to the insulation stage, the third indicator light goes out and the fourth indicator light turns on in white;

[0092] Heating method in the insulation stage: After entering the insulation stage, the control unit continues to control the heating element to heat intermittently. When the temperature of the temperature and humidity detection point is lower than 65°C, continuous heating begins, and heating stops when the temperature of the temperature and humidity detection point reaches 75°C (the temperature threshold is adjusted according to the structure); for example, in the temperature range of 65-75°C, the control unit cyclically controls the heating plate to heat for 20 seconds and then cut off for 40 seconds;

[0093] In the insulation stage, the moisture content of the garbage in the barrel has dropped to an extremely low level. That is, the moisture content in the barrel is already very low. As the evaporation rate and evaporation rate further decrease, the temperature in the barrel becomes more sensitive to the heat provided by the heating plate. Therefore, the average power needs to be lowered again to prevent the temperature in the barrel from rising rapidly. The purpose of setting this stage is to better control the temperature at the bottom of the barrel and in the air duct to ensure that the contents do not sinter and carbonize, while also avoiding energy waste.

[0094] The determination method of completing the drying stage: Drying determination is performed during the heat preservation stage. The control unit stores a saturated water vapor pressure temperature comparison table, which provides the saturated water vapor pressure values ​​corresponding to different temperatures under one atmospheric pressure. Figure 1-3 shown.

[0095] After starting the processing program, the control unit records the temperature T0 and relative humidity U0 of the drying starting point when the heating element is started to start drying.

[0096] Calculate the target humidity value U b , after detecting that the current relative humidity U1 drops to 40-80% and the current detected temperature T1 is basically stable, the target humidity value U is calculated. b It is better to calculate the target humidity value U when the current relative humidity U1 is detected to be lower than 50% or lower than 60% and the current detected temperature T1 is basically stable. b The control system obtains the saturated water vapor pressure e corresponding to the temperature T0 from the saturated water vapor pressure temperature comparison table. c0 And the saturated water vapor pressure e corresponding to the temperature T1 c1 , and calculate the target humidity value U according to the following calculation formula b ,

[0097] U b =e c0 / e c1 *U0+a, a is 1-10%,

[0098] During the insulation phase, the current relative humidity is detected to be less than or equal to the target humidity value U bThe drying is then stopped. At this time, the garbage in the trash can is already in a drying state. The control unit determines that the heat preservation stage has been completed and jumps to the cooling stage.

[0099] The fifth stage is the cooling stage:

[0100] After jumping to the cooling stage, the fourth indicator light goes out and the fifth indicator light turns on in white;

[0101] After entering the cooling stage, the control unit controls the heating element to stop heating and delays shutdown, that is, the heating plate does not work, the control unit counts down for 30 minutes and then shuts down, the processing program is completed, and all indicator lights are off.

Claims

1. A method for expanding the capacity of a household food waste disposer, characterized by: The following steps are included: A starting step, after the lid of the household food waste disposer is closed, the control unit starts the processing program, and the household food waste disposer starts heating the processing bucket for storing food waste through the heating element to start processing the waste; a detection step, after starting the processing program, the control unit continuously detects and records the temperature and relative humidity at the temperature and humidity detection points through detection elements provided at the temperature and humidity detection points of the food waste disposer; In a judgment and reminder step, the control unit calculates and determines whether the temperature rise rate of the detected temperature is higher than a set threshold value. If the temperature rise rate is higher than the set threshold value, the control unit determines that the initial temperature rise stage has been completed and issues a reminder signal to add garbage, prompting the user to open the lid again and add garbage to the disposal bin through an audible and visual reminder; In the step of adding garbage, after the control unit sends a reminder signal for adding garbage and receives a cover-opening signal indicating that the lid is opened or a control signal for adding garbage, the control unit pauses the processing program to provide the user with an opportunity to add garbage, and continues to run the processing program after the control unit receives a cover-closing signal indicating that the lid is closed or a control signal for continuing to run the processing program.

2. The method for expanding the capacity of a household food waste disposer according to claim 1, wherein: The detecting step is that the volume of the garbage in the processing barrel is reduced to 20-30% of the original volume when the household food waste disposer completes the initial heating stage; In the step of adding garbage, the control unit cyclically executes the step of judging and reminding while continuing to run the processing program, providing the user with opportunities and reminders to add garbage multiple times; The heating element includes a heating plate, which is arranged below the processing barrel, and the cover is arranged above the processing barrel.

3. The method for expanding the capacity of a household food waste disposer according to claim 1, wherein: In the detection step, the temperature and humidity detection point is set in the manifold or air duct of the kitchen waste disposer for exhausting air flow; the control unit calculates the heating rate according to the temperature detected at the temperature and humidity detection point and the detection time interval, If the heating rate within three minutes is greater than 2°C, it is determined that the household food waste disposer has not completed the initial heating stage, the processing program continues to run, and the control unit continues to record the temperature and calculate the heating rate. If the heating rate within three minutes is less than or equal to 2°C, it is determined that the household food waste disposer has completed the initial heating stage, and the control unit sends the reminder to add garbage.

4. A method for expanding the capacity of a household food waste disposer according to any one of claims 1 to 3, characterized in that: The household food waste disposer processes food waste in the processing barrel in the following stages: an initial heating stage, an evaporation stage, a drying stage, a heat preservation stage, and a cooling stage; The processing program includes an initial heating subroutine corresponding to the initial heating stage, an evaporation subroutine corresponding to the evaporation stage, a drying subroutine corresponding to the drying stage, a heat preservation subroutine corresponding to the heat preservation stage, and a cooling subroutine corresponding to the cooling stage. The control unit sequentially executes the initial temperature raising subroutine, the evaporation subroutine, the drying subroutine, the heat preservation subroutine and the cooling subroutine according to the progress of the treatment stage; The control unit calculates and determines whether the current processing stage is completed based on the temperature and relative humidity detected at the temperature and humidity detection point. When the control unit determines that the current processing stage is completed, the control unit executes a subroutine corresponding to the next processing stage and sends a reminder signal, indicating the completed processing stage and / or the current processing stage by means of sound and light reminders; The sound and light reminder method includes prompting through light, prompting through text symbol information, prompting through voice or prompting through buzzer alarm.

5. The method for expanding the capacity of a household food waste disposer according to claim 4, characterized in that: When the control unit determines that the evaporation stage has been completed and jumps to the drying stage, the control unit sends out a garbage adding reminder signal again and executes the garbage adding step at the same time, reminding the user to open the lid again and add garbage to the processing barrel through sound and light reminders.

6. The method for expanding the capacity of a household food waste disposer according to claim 5, characterized in that: The household food waste disposer is provided with indicator lights corresponding to the initial heating stage, evaporation stage, drying stage, heat preservation stage and cooling stage; The indicator light can indicate the following: 1) The control unit controls the corresponding indicator light to light up or flash to indicate the completed processing stage. 2) The control unit controls the corresponding indicator light to light up or flash to represent the current processing stage that has been completed. 3) The control unit controls the corresponding indicator light to flash in different colors to remind the user to open the lid again and add garbage to the disposal bin.

7. The method for expanding the capacity of a household food waste disposer according to claim 4, characterized in that: The control unit stores a saturated water vapor pressure-temperature comparison table. The saturated water vapor pressure temperature comparison table provides the saturated water vapor pressure values ​​corresponding to different temperatures under one atmospheric pressure condition. After starting the processing program, the control unit records the temperature T0 and relative humidity U0 of the drying starting point when the heating element is started to start drying. The target humidity value U is calculated during the heat preservation stage. b After detecting that the current relative humidity U1 is lower than 40-80% and the current detected temperature T1 is basically stable, the control system looks up the saturated water vapor pressure temperature comparison table to obtain the saturated water vapor pressure e corresponding to the temperature T0. c0 And the saturated water vapor pressure e corresponding to the temperature T1 c1 , and calculate the target humidity value U according to the following calculation formula b , U b =e c0 / e c1 *U0 + a, where a is 1 - 10%, When the current relative humidity is detected to be less than or equal to the target humidity value U b The drying is then stopped. At this time, the garbage in the garbage bin is already in a drying state. The control unit determines that the garbage has completed the heat preservation stage and jumps to the cooling stage.

8. The method for expanding the capacity of a household food waste disposer according to claim 7, characterized in that: After the treatment process is started, the initial temperature rise phase begins. The initial temperature rise phase is when the heating element is started to heat the treatment barrel. The initial temperature rise phase includes the process from the bottom temperature of the treatment barrel rising from room temperature to the precipitation of water from the garbage, and then the temperature of the liquid at the bottom of the barrel rising to the highest temperature or even boiling. The evaporation stage is a stage in which the liquid at the bottom of the treatment barrel is stabilized at the highest temperature or is in a boiling state. After the thermal equilibrium state is reached in the treatment barrel, the control unit determines that the initial temperature rise stage has been completed and enters the evaporation stage; The drying stage is a stage after the liquid at the bottom of the barrel has been evaporated. When the humidity value detected is less than or equal to 50-60%, the control unit determines that the evaporation stage has been completed and enters the drying stage; The heat preservation stage is a stage in which the moisture content of the garbage in the treatment barrel has dropped to an extremely low level. When the temperature detected by the temperature and humidity detection point during the evaporation stage is greater than 75°C, the control unit determines that the drying stage has been completed and enters the heat preservation stage; The cooling stage is a cooling stage, when it is detected that the current relative humidity is less than or equal to the target humidity value U b The control unit then determines that the drying phase has been completed and enters the cooling phase.

9. The method for expanding the capacity of a household food waste disposer according to claim 8, characterized in that: In the initial heating stage, the control unit executes the initial heating subroutine. After the power is turned on, the control unit controls the heating element to first continuously heat to 150°C, and then controls the heating element to heat intermittently. When the temperature of the heating element is lower than 150°C, the heating is continuously heated, and when the temperature is higher than 165°C, the heating is stopped, and the temperature of the heating element is controlled at 150-165°C. During the evaporation phase, the control unit executes the evaporation subroutine. After entering the evaporation phase, the control unit continues to control the heating element to intermittently heat the heating element, and controls the temperature of the heating element to be 150-165°C. During the drying stage, the control unit executes the drying subroutine. After entering the drying stage, the control unit continues to control the heating element to perform intermittent heating, continuously heating when the temperature of the heating element is lower than 130°C and stopping heating when the temperature is higher than 145°C, thereby controlling the temperature of the heating element to be between 130°C and 145°C. During the heat preservation stage, the control unit executes the heat preservation subroutine. After entering the heat preservation stage, the control unit continues to control the heating element to perform intermittent heating, starts intermittent heating when the temperature of the temperature and humidity detection point is lower than 65°C, and stops heating when the temperature of the temperature and humidity detection point reaches 75°C; In the cooling stage, the control unit controls the heating element to stop heating and delay shutdown according to the cooling subroutine after entering the cooling stage.

10. The method for expanding the capacity of a household food waste disposer according to claim 7, characterized in that: The target humidity value U is calculated after detecting that the current relative humidity U1 is lower than 60% and the current detected temperature T1 is basically stable. b .

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