Working method of garbage disposer and garbage disposer

Abstract

The present invention relates to a working method of a garbage disposer, and the processing process of the garbage disposer includes a first working stage, a second working stage and a third working stage; the working method of the first working stage is: controlling the heater to dry the garbage, controlling the crushing mechanism to stir the garbage and crush the garbage, and controlling the stirring speed of the motor output in the crushing mechanism to be a first speed V1; the working method of the second working stage is: controlling the heater to dry the garbage, controlling the crushing mechanism to stir the garbage and crush the garbage, and controlling the stirring speed of the motor output in the crushing mechanism to be a second speed V2; the working method of the third working stage is: controlling the heater to stop working, controlling the crushing mechanism to stir the garbage and crush the garbage, and controlling the stirring speed of the motor output in the crushing mechanism to be a third speed V3. The working method of the garbage disposer can save garbage processing time, and can perform adaptive processing according to the characteristics of the garbage state, and the processing effect is better. The present invention also relates to a garbage disposer using the working method.

Description

Technical Field

[0001] The invention relates to a working method of a garbage disposer and also relates to a garbage disposer applying the working method. Background Art

[0002] As people's environmental awareness continues to improve, garbage disposers are increasingly used in garbage disposal. In the process of garbage disposal, especially kitchen waste, the garbage is usually dried and crushed.

[0003] The authorization announcement number is CN211965334U (application number is 201922359187.5), in which the garbage disposal device disclosed therein has the following working process: the kitchen waste enters the drying and stirring mechanism 3 through the residue inlet of the drying and stirring mechanism 3, and the drying and stirring mechanism 3 heats and dries the kitchen waste through the heating tube 304 while stirring the kitchen waste. The odorous gas generated by the kitchen waste enters the deodorizing mechanism 6 through the residue inlet of the drying and stirring mechanism 3, and the odorous gas is deodorized by the deodorizing mechanism 6 and can be directly discharged to the outside. When the temperature and humidity values ​​collected by the temperature and humidity sensor 305 reach the preset values ​​(that is, the kitchen waste is fully dried), the leakage mechanism 4 is controlled to open, and the dried kitchen waste in the drying and stirring mechanism 3 is transported to the crushing mechanism 5, and the kitchen waste is crushed by the crushing mechanism 5. After the kitchen waste is fully crushed, it can be discharged into the collecting bin 7 for centralized collection, thereby completing the treatment of the kitchen waste. In the process of kitchen waste treatment, the drying and crushing processes of the waste need to be handled separately and in different mechanisms. Therefore, for a waste disposer of a specific volume, the waste treatment capacity is very small and the waste treatment time is relatively long. In addition, when judging whether the waste has been dried, an additional temperature and humidity sensor is required to detect and judge, which increases the cost of the detection device. At the same time, there are inevitable errors in the installation position of the detection device in the product. The installation position of the detection device will affect the temperature limit of the heating end judgment, and the versatility of the drying judgment is poor. Summary of the invention

[0004] The first technical problem to be solved by the present invention is to provide a working method of a garbage disposer which can save garbage processing time and can perform adaptive processing according to the characteristics of the garbage state, with respect to the above-mentioned prior art.

[0005] The second technical problem to be solved by the present invention is to provide a working method of a garbage disposer which can avoid the motor in the pulverizing mechanism from stalling as much as possible and can recover as much as possible in the event of motor stalling to reduce unnecessary fault shutdown.

[0006] The third technical problem to be solved by the present invention is to provide a working method for a garbage processor that can judge the drying situation by using the control characteristics of the heater itself in view of the above-mentioned prior art.

[0007] The fourth technical problem to be solved by the present invention is to provide a garbage processor that adopts the working method of the garbage processor as described above in view of the above-mentioned prior art.

[0008] The technical solution adopted by the present invention to solve the above-mentioned first technical problem is as follows: A working method for a garbage processor, characterized in that the processing process of the garbage processor includes a first working stage, a second working stage and a third working stage;

[0009] The working method of the first working stage is: controlling the heater to dry the garbage, controlling the crushing mechanism to stir and crush the garbage, and controlling the stirring speed output by the motor in the crushing mechanism to be the first rotation speed V1;

[0010] The working method of the second working stage is: controlling the heater to dry the garbage, controlling the crushing mechanism to stir and crush the garbage, and controlling the stirring speed output by the motor in the crushing mechanism to be the second rotation speed V2;

[0011] The working method of the third working stage is: controlling the heater to stop working, controlling the crushing mechanism to stir and crush the garbage, and controlling the stirring speed output by the motor in the crushing mechanism to be the third rotation speed V3.

[0012] In order to better process the garbage according to the characteristics of the garbage in different stages, in the first working stage, control the crushing mechanism to rotate forward N1 circles and then stop for a time T1, and then control the crushing mechanism to rotate backward N1 circles and then stop for a time T1, and so on to control the crushing mechanism to rotate forward and backward alternately;

[0013] In the second working stage, control the crushing mechanism to rotate forward N2 circles and then stop for a time T2, and then control the crushing mechanism to rotate backward N2 circles and then stop for a time T2, and so on to control the crushing mechanism to rotate forward and backward alternately;

[0014] In the third working stage, control the crushing mechanism to rotate forward N3 circles and then stop for a time T3, and then control the crushing mechanism to rotate backward N3 circles and then stop for a time T3, and so on to control the crushing mechanism to rotate forward and backward alternately.

[0015] More conducive to the garbage treatment effect, the relationship between N1, N2, and N3 is N1 < N3 < N2; the relationship between T1, T2, and T3 is: T2 < T3 < T1.

[0016] More conducive to the garbage treatment effect, the relative relationship of the first rotation speed, the second rotation speed, and the third rotation speed is: V1 < V3 < V2.

[0017] The technical solution adopted by the present invention to solve the above-mentioned second technical problem is: during the operation of the crushing mechanism, the rotation speed of the motor in the crushing mechanism is obtained in real time. If the decreasing speed of the motor speed and / or the motor speed drops to a low speed threshold, it is judged that the motor is blocked, and the motor is controlled to rotate in the opposite direction of the current direction.

[0018] In order to better realize the accurate judgment of the jam machine and the protection of the garbage disposer by the jam machine state, if the forward and reverse rotation of the motor are judged to be blocked at the same position within the short-time threshold T4, it is judged as a jam machine, and the motor is controlled to stop working;

[0019] When a jam occurs, if it is in the first working stage, the number of jams at this position is accumulated and calculated, and then the motor is controlled to restart after a waiting time T5; if the accumulated number of jams at this position reaches the jam threshold N4 during the subsequent working process of the motor, the garbage disposer is controlled to be shut down for protection.

[0020] Optionally, the low speed threshold is a set fixed speed value, or a speed value calculated by proportionality to the set speed.

[0021] The technical solution adopted by the present invention to solve the third technical problem is: 8. The working method of the garbage disposer according to any one of claims 1 to 3 is characterized in that: when controlling the heater to perform the garbage drying work, the heater is controlled to work according to the target temperature by using the PID control method;

[0022] During the operation of the heater, the switching value K of the heater is obtained. The switching value K of the heater is the power-on time of the heater in a unit cycle. The switching value K of the heater is compared with the switching value threshold to judge the drying state of the garbage. The end points of the first working stage and the second working stage are determined according to the drying state of the garbage.

[0023] Preferably, different switch value thresholds Ki are set corresponding to different drying states i, and if K≤Ki, it is determined that the garbage processing reaches the drying state i.

[0024] The technical solution adopted by the present invention to solve the fourth technical problem is: a garbage disposer, including a garbage bin, characterized in that it also includes a crushing mechanism for crushing garbage in the garbage bin, a heater for heating and drying the garbage in the garbage bin, and a control circuit board electrically connected to the heater and the crushing mechanism respectively;

[0025] The control circuit board includes a controller, a drive circuit and a thyristor circuit, wherein the drive circuit is electrically connected to the controller and the pulverizing mechanism respectively, and the thyristor circuit is electrically connected to the controller and the heater respectively;

[0026] The garbage disposer operates using the aforementioned working method.

[0027] Preferably, the heater is a heating plate arranged at the bottom of the garbage bin.

[0028] Preferably, the pulverizing mechanism includes a pulverizing member arranged on a motor and extending into the garbage bin, the pulverizing member is connected to a driving end of the motor, and the motor is electrically connected to a driving circuit.

[0029] Compared with the prior art, the advantages of the present invention are: the working method of the garbage disposer of the present invention shreds the garbage while drying it, which greatly shortens the garbage processing time and improves the garbage processing efficiency. At the same time, the drying and shredding of the garbage in the present invention are carried out simultaneously in the garbage bin, which improves the utilization rate of the garbage storage space in the garbage processing, and the garbage disposer of the same volume can store more garbage.

[0030] In addition, according to the characteristics of garbage drying and crushing, the processing process adopts corresponding working parameters, which improves the drying and crushing effects of garbage and reduces the chance of garbage blockage.

[0031] The garbage disposer adopting this working method has a relatively large garbage storage capacity and a high garbage processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a waveform diagram of the motor at different working stages of the working method of the garbage disposer in the embodiment of the present invention. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below with reference to the accompanying drawings.

[0034] The garbage disposer in this embodiment includes a garbage bin, a crushing mechanism for crushing garbage in the garbage bin, a heater for heating and drying the garbage in the garbage bin, and a control circuit board electrically connected to the heater and the crushing mechanism. The control circuit board includes a controller, a drive circuit and a thyristor circuit, the drive circuit is electrically connected to the controller and the crushing mechanism, and the thyristor circuit is electrically connected to the controller and the heater.

[0035] The crushing mechanism includes a crushing piece arranged on a motor and extending into the garbage bin, the crushing piece is connected to the driving end of the motor, and the motor is electrically connected to the driving circuit. Then, according to the control command of the controller, the driving circuit drives the motor to work, thereby driving the crushing piece to stir the garbage bin in the forward and reverse directions, thereby achieving the stirring of the garbage in the garbage bin and the crushing of the garbage in the garbage bin at the same time.

[0036] The heater is a heating plate arranged at the bottom of the garbage bin. When the heater is drying the garbage in the garbage bin, a target temperature is set, and the target temperature is a temperature at which the garbage in the garbage bin will not be heated and gelatinized.

[0037] During operation, according to the target temperature, the controller will control the on-off action of the thyristor circuit according to the PID control signal, and then control the switching amount of the heater. The switching amount of the heater is the power-on time of the heater in a unit cycle, so that the operating temperature of the heater is stabilized at the target temperature.

[0038] In the early stage of the heater's heating work, due to the low temperature of the garbage and the large amount of heat exchange between the garbage and the heater, the heater needs to be powered on for a longer time per unit time, that is, the switching amount of the heater is large, thereby achieving rapid heating of the garbage. As the garbage continues to dry, the heat exchange required by the garbage becomes smaller and smaller. Accordingly, to maintain the heater at the target temperature, the heater needs to be powered on for a shorter time per unit time, that is, the switching amount of the heater gradually decreases.

[0039] The working method of the garbage disposer in this embodiment shreds the garbage in the garbage bin while drying it, thereby improving the garbage processing efficiency. Specifically, the garbage in the garbage bin has different state characteristics while drying and shredding the garbage, and the garbage processing process is divided into multiple working stages according to the different state characteristics of the garbage.

[0040] In this embodiment, the processing process of the garbage disposer includes a first working stage, a second working stage and a third working stage in chronological order.

[0041] The first working stage is mainly the drying process of the garbage. In this stage, the humidity of the garbage is high and the garbage is easily entangled in the crushing mechanism. Therefore, while the garbage is dried quickly and the crushing mechanism is used to stir the garbage to increase its drying speed, the speed of the crushing mechanism is not easy to be too high to reduce the probability of garbage entanglement. When the humidity of the garbage in the garbage bin drops to a lower humidity data and reaches the set drying state 1, the first working stage ends.

[0042] In the second working stage, the garbage in the garbage bin has been dried in the first working stage, and the humidity of the garbage has dropped to a lower humidity data. At this time, the probability of the garbage being entangled in the crushing mechanism due to excessive humidity is greatly reduced. At the same time, there is still a certain amount of moisture in the garbage, and the overall texture of the garbage is relatively soft. This stage is very conducive to the crushing of the garbage. Therefore, the working speed of the crushing mechanism can be increased, thereby increasing the crushing speed of the garbage, so that the garbage can be crushed as soon as possible. After the second working stage, the humidity of the garbage reaches the humidity data corresponding to the dry garbage, that is, the garbage is dried to the set dry state 2, and the second working stage ends.

[0043] In the third working stage, since the garbage has been dried, the control stops drying the garbage and reduces the stirring speed of the garbage to prevent dust from appearing during the crushing process. This is also beneficial for cooling the garbage. When the garbage is cooled to the low temperature threshold, the garbage processing is completed.

[0044] like Figure 1 As shown, based on the characteristics of different working stages in the garbage disposal process, the working method of the garbage disposer in this embodiment specifically includes the following contents.

[0045] The working method of the first working stage is: control the heater to dry the garbage, control the crushing mechanism to stir and crush the garbage, and control the stirring speed output by the motor in the crushing mechanism to be the first speed V1. In order to improve the crushing effect of the garbage, the crushing mechanism is controlled to rotate forward for N1 turns and then stop for a time T1, and then the crushing mechanism is controlled to reverse for N1 turns and then stop for a time T1, and this cycle is repeated to control the crushing mechanism to alternately rotate forward and reverse.

[0046] The working method of the second working stage is: control the heater to dry the garbage, control the crushing mechanism to stir and crush the garbage, and control the stirring speed output by the motor in the crushing mechanism to be the second speed V2. At the same time, control the crushing mechanism to rotate forward for N2 turns and then stop for a time T2, and then control the crushing mechanism to reverse for N2 turns and then stop for a time T2, and so on to control the crushing mechanism to rotate forward and reverse alternately.

[0047] The working method of the third working stage is: control the heater to stop working, control the crushing mechanism to stir and crush the garbage, and control the stirring speed output by the motor in the crushing mechanism to be the third speed V3. At the same time, control the crushing mechanism to rotate forward N3 times and then stop for a time T3, and then control the crushing mechanism to reverse N3 times and then stop for a time T3, and so on to control the crushing mechanism to alternately rotate forward and reverse.

[0048] Among them V1 <V3<V2,N1<N3<N2,T2<T3<T1。

[0049] Based on the relationship between T1, T2, and T3, it can be seen that the forward and reverse switching speed of the motor in the second stage is the fastest, and the garbage crushing effect is relatively better. The relationship between T3 and T1 conforms to the characteristics of the garbage in the corresponding stage. The above-mentioned garbage treatment is an adaptive adjustment made according to the state characteristics of the garbage itself in each working stage, which has a better drying and crushing effect on the garbage.

[0050] In addition, during the operation of the pulverizing mechanism, the speed of the motor in the pulverizing mechanism is obtained in real time. If the speed of the motor speed decreases and / or the motor speed drops to a low speed threshold, it is determined that the motor is blocked, and the motor is controlled to rotate in the opposite direction of the current direction. The low speed threshold is a set fixed speed value, or a speed value calculated by proportionality to the set speed. The speed of the motor speed decrease can be used to more quickly determine whether the motor is blocked, and then adjust the rotation direction of the motor to avoid blockage failures as much as possible.

[0051] If the motor is judged to be stuck in the forward and reverse rotation at the same position within the short-time threshold T4, it is judged as a jam, and the motor is controlled to stop working; when the jam occurs, if it is in the first working stage, the number of jams at this position is accumulated, and then the motor is controlled to restart after the waiting time T5; if the number of jams accumulated at this position during the subsequent working process reaches the jam threshold N4, the garbage disposer is controlled to be shut down for protection. When the jam occurs, if it is in the second working stage or the third working stage, the garbage disposer is controlled to be shut down for protection.

[0052] In addition, when controlling the heater to dry the garbage, the PID control method is used to control the heater according to the target temperature. Different switching thresholds Ki are set corresponding to different drying states i. For example, for the first working stage and the second working stage, the drying states to be achieved are set respectively, and then the corresponding switching thresholds Ki are determined.

[0053] During the operation of the heater, the switch quantity K of the heater is obtained. The switch quantity K of the heater is the power-on time of the heater in a unit cycle. The switch quantity K of the heater is compared with the switch quantity threshold to determine the drying state of the garbage. Due to the continuous heating of the garbage heater in the garbage bin, the corresponding drying continues, and the switch quantity of the heater will become smaller and smaller. In this way, when the garbage is drying, if K≤Ki, it is judged that the garbage processing has reached the drying state i. The end point of the first working stage and the second working stage is determined according to the drying state of the garbage. For example, in the first working stage, the judgment condition for the end of the first working stage is that the garbage reaches the drying state 1. In the second working stage, the judgment condition for the end of the second working stage is that the garbage reaches the drying state 2, and the drying state is directly related to the water content of the garbage. In the product development stage, the drying state of each working stage can be determined through experimental testing. In the third working stage, the temperature drop of the garbage is used as the low temperature threshold as the judgment condition for the end of the third working stage.

[0054] The working method of the garbage disposer in the present invention shreds the garbage while drying it, which greatly shortens the garbage processing time and improves the garbage processing efficiency. At the same time, the garbage drying and shredding processes in the present invention are carried out simultaneously in the garbage bin, which improves the utilization rate of the garbage storage space in the garbage processing. For garbage disposers of the same volume, the storage capacity of garbage is larger. In addition, according to the state characteristics of garbage drying and shredding, the processing process adopts corresponding working parameters respectively, which has better effects on the garbage drying and shredding processes and reduces the probability of garbage stalling.

[0055] In addition, when drying garbage, the heater's own heating control characteristics are utilized, and the heater's switch quantity is used as the judgment condition for the completion of the drying work, which avoids the problem of setting up other additional detection devices, reduces the cost of setting up detection devices, and correspondingly avoids the problem of inconsistent judgment standards and poor universality due to the differences in the detection devices themselves and the differences in the installation positions. In addition, using the heater's switch quantity as the judgment condition for the completion of the drying work makes the judgment on the completion of the drying work more direct and accurate, and improves the accuracy of the judgment on the completion of the drying work.

[0056] The garbage disposer adopting this working method has a relatively large garbage storage capacity and a high garbage processing efficiency.

Claims

1. A working method of a garbage disposer, characterized in that: The processing process of the garbage processor includes a first working stage, a second working stage, and a third working stage; The working method in the first working stage is: controlling the heater to dry the garbage, controlling the crushing mechanism to stir and crush the garbage, and controlling the stirring speed output by the motor in the crushing mechanism to be the first rotation speed V1; controlling the crushing mechanism to rotate forward N1 circles and then stop for a time T1, and then controlling the crushing mechanism to rotate backward N1 circles and then stop for a time T1, and so on in a cycle to control the crushing mechanism to rotate forward and backward alternately; The working method in the second working stage is: controlling the heater to dry the garbage, controlling the crushing mechanism to stir and crush the garbage, and controlling the stirring speed output by the motor in the crushing mechanism to be the second rotation speed V2; at the same time, controlling the crushing mechanism to rotate forward N2 circles and then stop for a time T2, and then controlling the crushing mechanism to rotate backward N2 circles and then stop for a time T2, and so on in a cycle to control the crushing mechanism to rotate forward and backward alternately; The working method in the third working stage is: controlling the heater to stop working, controlling the crushing mechanism to stir and crush the garbage, and controlling the stirring speed output by the motor in the crushing mechanism to be the third rotation speed V3; at the same time, controlling the crushing mechanism to rotate forward N3 circles and then stop for a time T3, and then controlling the crushing mechanism to rotate backward N3 circles and then stop for a time T3, and so on in a cycle to control the crushing mechanism to rotate forward and backward alternately; The relationship between N1, N2, and N3 is N1 < N3 < N2; the relationship between T1, T2, and T3 is: T2 < T3 < T1; The relative relationship of the first rotation speed, the second rotation speed, and the third rotation speed is: V1 < V3 < V2.

2. The working method of the garbage disposer according to claim 1, characterized in that: During the working process of the crushing mechanism, the rotation speed of the motor in the crushing mechanism is obtained in real time. If the falling speed of the motor rotation speed and / or the motor rotation speed drops to the low rotation speed threshold, it is judged that the motor is blocked, and at this time, the motor is controlled to rotate in the opposite direction of the current rotation direction.

3. The working method of the garbage disposer according to claim 2, characterized in that: If it is judged that the motor is blocked at the same position during forward and backward rotation within the short time threshold T4, it is judged as a jamming, and at this time, the motor is controlled to stop working; When jamming occurs, if it is in the first working stage, the number of jamming times at this position is accumulated and calculated, and then after controlling the waiting time T5, the motor is controlled to restart working; If the accumulated number of jamming times at this position reaches the jamming times threshold N4 during the subsequent working process of the motor, the shutdown protection of the garbage processor is controlled.

4. The working method of the garbage disposer according to claim 2, characterized in that: The low rotation speed threshold is a set fixed rotation speed value, or a rotation speed value obtained by proportional calculation of the set rotation speed.

5. The working method of the garbage disposer according to claim 1, characterized in that: When controlling the heater to perform garbage drying work, the heater is controlled to work according to the target temperature by using the PID control method; During the working process of the heater, the switch quantity K of the heater is obtained. The switch quantity K of the heater is the power-on time of the heater within a unit cycle. The switch quantity K of the heater is compared with the switch quantity threshold, and then the drying state of the garbage is judged. According to the drying state of the garbage, the end points of the first working stage and the second working stage are determined.

6. The working method of the garbage disposer according to claim 5, characterized in that: Corresponding to different drying states i, different switch quantity thresholds Ki are set. If K ≤ Ki, it is judged that the garbage treatment reaches the drying state i.

7. A garbage disposer, comprising a garbage bin, characterized in that: It also includes a crushing mechanism for crushing the garbage in the garbage bin, a heater for heating and drying the garbage in the garbage bin, and a control circuit board electrically connected to the heater and the crushing mechanism respectively; The control circuit board includes a controller, a drive circuit and a thyristor circuit, wherein the drive circuit is electrically connected to the controller and the pulverizing mechanism respectively, and the thyristor circuit is electrically connected to the controller and the heater respectively; The garbage disposer operates using the working method described in any one of claims 1 to 6.

8. The garbage disposer according to claim 7, characterized in that: The heater is a heating plate arranged at the bottom of the garbage bin.

9. The garbage disposer according to claim 7, characterized in that: The pulverizing mechanism comprises a pulverizing member arranged on a motor and extending into the garbage bin, the pulverizing member is connected to the driving end of the motor, and the motor is electrically connected to the driving circuit.

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