Oil cup cleaning prompting method

Abstract

The invention discloses an oil cup cleaning prompting method. The method comprises the following steps that S1, an oil cup detection module detects whether an oil cup is installed on a range hood or not; s2, judging whether the installation time t1 counted by the timing module is 0 or not; if yes, entering the step S3; s3, timing the installation time t1 of the oil cup on the range hood by a timing module; s4, within the installation time t1 when the oil cup is installed on the range hood, in the process that the range hood is started every time, a timing module conducts timing and accumulation on the operation time T of the smoke exhaust fan at different gears; and S5, the master control module calculates the oil contamination amount generated by the smoke exhaust fan within the accumulated operation time T under different gears and calculates the total oil contamination amount N generated by the smoke exhaust fan within the installation time t1 when the oil cup is installed on the range hood, and if the total oil contamination amount N reaches a set value, the early warning module gives an early warning. The oil dirt accumulated in the using process of the oil cup is monitored based on a software method, and additional installation of a sensor and wiring on the range hood are not needed.

Description

Technical Field

[0001] The invention relates to the technical field of range hoods, and in particular to an oil cup cleaning prompting method. Background Art

[0002] The range hood is a kitchen appliance that purifies the kitchen environment. It can quickly extract the waste from stove combustion and the fumes generated during cooking and discharge them outdoors, reduce pollution, and purify the air. In the process of the exhaust fan of the range hood discharging the fumes, oil and water will be produced on the smoke collecting chamber and the exhaust fan of the range hood. These oils will be discharged into the oil cup through the smoke collecting chamber. Existing range hoods use various different methods to detect the amount of oil in the oil cup to remind users to clean the oil cup. For example, some range hoods use weighing to detect the amount of oil in the oil cup. The weighing method is a method of using a weight sensor to detect the weight of the oil in the oil cup. Some range hoods use the oil cup to move down when there is a lot of oil in the oil cup, and the signal sensor senses the height of the oil cup to judge the amount of oil. These detection methods use sensors, and the wiring problem of the sensor needs to be considered. The detection method is feasible in theory, but it cannot be applied in practice. Summary of the invention

[0003] The object of the present invention is to provide an oil cup cleaning prompt method, which is used to solve the above technical problems.

[0004] An oil cup cleaning reminder method is used for a range hood, the range hood includes a main control module, an oil cup detection module, a timing module, a smoke exhaust fan and an early warning module, the timing module is used to count the installation time t1 of the oil cup on the range hood and the running time T of the smoke exhaust fan, the oil cup cleaning reminder method includes the following steps:

[0005] S1: The oil cup detection module detects whether the oil cup is installed on the range hood; if so, execute step S2: determine whether the installation time t1 counted by the timing module is 0; if so, proceed to step S3:

[0006] S3: The timing module counts the installation time t1 of the oil cup on the range hood;

[0007] S4: During the installation time t1 when the oil cup is installed on the range hood, the timing module times and accumulates the running time T of the smoke exhaust fan at different gears during each startup of the range hood;

[0008] S5: The main control module calculates the amount of oil pollution generated by the smoke exhaust fan during the cumulative running time T at different gears, and calculates the total amount of oil pollution N generated by the smoke exhaust fan during the installation time t1 when the oil cup is installed on the smoke exhaust fan: If the total amount of oil pollution N reaches the set value, the early warning module will issue an early warning.

[0009] In one embodiment, in step S2, if the installation time t1 is 0, when step S4 starts to be executed, the timing module clears the running time T and restarts the timing and accumulation, and when step S5 starts, the main control module clears the total oil pollution amount N and restarts the measurement and accumulation.

[0010] In one of the embodiments, the timing module also includes a module for counting the departure time t2 from when the oil cup leaves the range hood to when the oil cup is installed on the range hood again; after the oil cup leaves the range hood, the timing module starts to count the departure time t2 of the oil cup, and if the departure time t2 ≥ the first preset time t3, the timing module will reset the installation time t1 of the oil cup on the range hood, and when the oil cup is installed on the range hood again, the installation time t1 obtained in step S2 is 0, wherein the first preset time t3 is a time value set in the main control module, and 10″<first preset time t3<60″.

[0011] In one of the embodiments, if the departure time t2 is less than the first preset time t3, then in step S2, the installation time t1 is not 0, and in step S3, the timing module does not clear the installation time t1 and continues to time the installation time t1 of the oil cup on the range hood; in step S4, the timing module does not clear the smoke exhaust fan and continues to accumulate the operating time T of the smoke exhaust fan at different gears; at the same time, in step S5, the main control module does not clear the total oil pollution amount N and continues to accumulate the total oil pollution amount N.

[0012] In one embodiment, when the installation time t1 of the oil cup on the range hood reaches a preset installation time or the total oil pollution amount N reaches a preset oil amount, the warning module will issue a warning.

[0013] In one embodiment, in step S5, the method for calculating the total amount of oil pollution N generated by the smoke exhaust fan within the installation time t1 when the oil cup is installed on the smoke exhaust fan is:

[0014] During the installation time t1 after the oil cup is installed on the range hood, during each startup of the range hood:

[0015] The exhaust fan runs at low gear for a cumulative time of T1, and according to the oil pollution generation speed m1, the generated oil pollution amount P1 = T1*m1 is calculated, and the oil pollution amount P1 data is stored in the main control module;

[0016] The exhaust fan runs at mid-range for a time period of T2, and according to the oil pollution generation speed m2, the generated oil pollution amount P2 = T2*m2 is calculated, and the oil pollution amount P2 data is stored in the main control module;

[0017] The high-end operation time of the exhaust fan is T3, and according to the oil pollution generation speed m3, the generated oil pollution amount P3 = T3*m3 is calculated, and the oil pollution amount P3 data is stored in the main control module;

[0018] The exhaust fan stir-fry gear runs for T4, and according to the oil pollution generation speed m4, the generated oil pollution amount P4=T4*m4 is calculated, and the oil pollution amount P4 data is stored in the main control module;

[0019] Then, during each startup of the range hood, the accumulated amount of oil pollution M1 = P1 + P2 + P3 + P4, and the oil pollution amount M1 data is stored in the main control module;

[0020] Calculate the total accumulated oil pollution amount of the range hood during the installation time t1 when the oil cup is installed on the range hood, N = M1 + M2 + M3 + ... Mi;

[0021] Among them, m1<m2<m3<m4.

[0022] In one of the embodiments, the range hood also includes a smoke concentration detection module, which detects the oil smoke generated during the user's cooking process in real time, and automatically adjusts the operating gear of the smoke exhaust fan according to the oil smoke concentration C; the oil pollution generation speed m1, the oil pollution generation speed m2, the oil pollution generation speed m3 and the oil pollution generation speed m4 are the average oil pollution generation speeds measured in multiple tests when the smoke exhaust fan is running at the corresponding gear within the corresponding oil smoke concentration C.

[0023] In one of the embodiments, the range hood also has a control panel. In step S1, if the oil cup detection module detects that the oil cup is installed on the range hood, the status of the oil cup is displayed on the control panel; in step S1, if the oil cup detection module detects that the oil cup is not installed on the range hood, and after waiting time t4, the oil cup is not detected to be installed on the range hood, the main control module displays the status of the oil cup on the control panel and reminds the user to install the oil cup.

[0024] In one embodiment, the oil cup cleaning prompt method further includes the following steps:

[0025] When the range hood is turned on and running, if the oil cup detection module has poor contact with the oil cup within the second preset time t5, it is determined that the oil cup is not properly installed on the range hood, and the main control module displays the status of the oil cup on the control panel and reminds the user to check the status of the oil cup.

[0026] In one of the embodiments, the oil cup detection module is a micro switch assembly. After the oil cup is installed on the range hood, the micro switch assembly is activated. After the oil cup leaves the range hood, the micro switch assembly is closed. In step S1, the main control module determines whether the oil cup is correctly installed on the range hood by judging the state of the micro switch assembly. The range hood is provided with an oil cup installation structure, which includes a base, a shell, a top bead and an elastic member. The shell is arranged above the base. After the shell and the base are connected in place, there is a gap between the upper surface of one side of the base and the lower surface of the corresponding side of the base. The side of the shell corresponding to the gap has a cavity with an opening facing downward, and the top of the cavity has a through hole penetrating the cavity. The top bead It is slidably connected in the cavity and at least partially arranged in the cavity of the shell, a push rod is arranged on the top ball, and the top of the cavity has a through hole that penetrates the cavity, and the push rod extends or retracts into the cavity from the through hole; the elastic member is arranged in the cavity and acts on the upper end surface of the top ball, and always applies downward pressure on the top ball; the micro switch assembly is arranged above the shell, including a switch seat and a micro switch, the switch seat is connected to the shell, and the micro switch is installed on the switch seat, and its starting end faces the through hole. When the oil cup is connected to the oil cup mounting structure, the oil cup hanging ear on the oil cup is installed in the gap, and the oil cup hanging ear is subjected to an upward force on the lower end surface of the top ball, and the top ball rises along the cavity, and the push rod extends through the through hole and starts the micro switch.

[0027] Compared with the prior art, the oil cup cleaning prompt method of the present invention has the following advantages:

[0028] The oil cup cleaning reminder method of this application is through the following steps: S1: the oil cup detection module detects whether the oil cup is installed on the range hood; if so, execute step S2: determine whether the installation time t1 counted by the timing module is 0; if so, enter step S3; S3: the timing module times the installation time t1 of the oil cup on the range hood; S4: during the installation time t1 when the oil cup is installed on the range hood, during each startup of the range hood, the timing module times and accumulates the running time T of the smoke exhaust fan at different gears; S5: the main control module calculates the amount of oil pollution generated by the smoke exhaust fan during the accumulated running time T at different gears, and calculates the total amount of oil pollution N generated by the smoke exhaust fan during the installation time t1 when the oil cup is installed on the range hood: if the total amount of oil pollution N reaches the set value, the early warning module will issue an early warning. This application is based on a software method to monitor the oil pollution accumulated in the oil cup during use, without the need to install additional sensors and wiring on the range hood, avoiding changes to the structure of the range hood, increasing the practicality of oil pollution monitoring, and avoiding cost issues caused by changes to the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of the range hood provided for this application.

[0030] Figure 2 This is a schematic diagram of the structure of the oil cup installation structure provided in this application.

[0031] Figure 3 An exploded schematic diagram of the oil cup mounting structure provided in this application.

[0032] Figure 4 A cross-sectional view of the range hood provided for this application.

[0033] Figure 5 This is an enlarged view of the range hood I provided in this application.

[0034] Figure 6 A schematic diagram of the flow chart of the oil cup cleaning reminder method provided in this application. DETAILED DESCRIPTION

[0035] The following will disclose multiple embodiments of the present invention with drawings. For the purpose of clear description, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these practical details are not necessary. In addition, for the purpose of simplifying the drawings, some conventional structures and components will be depicted in a simple schematic manner in the drawings.

[0036] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0037] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0038] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:

[0039] In one embodiment, a method for reminding to clean an oil cup 7 is provided. The method for reminding to clean an oil cup 7 is used for a range hood, which includes a main control module, an oil cup 7 detection module, a timing module, a smoke exhaust fan and an early warning module. The timing range of the timing module includes the installation time t1 of the oil cup 7 on the range hood and the operation time T of the smoke exhaust fan. The main control module is the control center of the range hood. Specifically, the main control module is connected to the oil cup 7 detection module, the timing module, the smoke exhaust fan and the early warning module respectively. The oil cup 7 detection module is used to detect whether the oil cup 7 is installed on the oil cup 7 installation structure and send the detection result to the main control module. When the oil cup 7 is installed in place on the oil cup 7 installation structure, the timing module starts to count the time when the oil cup 7 is installed on the range hood. When the smoke exhaust fan is running, the timing module counts the operation time of the smoke exhaust fan and accumulates the operation time of the smoke exhaust fan. After the oil cup 7 is installed on the range hood and before the set time is reached, if the total oil pollution amount N reaches the set value, in order to avoid the oil in the oil cup 7 from overflowing, the early warning module issues an early warning to prompt the user to clean the oil cup 7. In one example, the main control module is a processor, a microcontroller, a single-chip system or a programmable logic controller.

[0040] In one example, the oil cup 7 detection module is a proximity sensor, a photoelectric sensor or a mechanical switch. Figure 1 and Figure 2 As shown, the range hood is provided with an oil cup 7 mounting structure, which includes a base 1, a shell 2, a top ball 3 and an elastic member 4. The shell 2 is arranged above the base 1. After the shell 2 and the base 1 are connected in place, a gap a is provided between an upper surface of one side of the base 1 and a lower surface of a corresponding side of the base 1. The side of the shell 2 corresponding to the gap a has a cavity 21 with an opening facing downward, and the top of the cavity 21 has a through hole penetrating the cavity 21; the top ball 3 is slidably connected in the cavity 21 and is at least partially arranged in the shell cavity 21. A top rod 32 is provided on the top ball 3, and the top of the cavity 21 has a through hole penetrating the cavity 21. The top rod 32 extends from the through hole The hole is extended or retracted into the cavity 21; the elastic member 4 is arranged in the cavity 21 and acts on the upper end surface of the top ball 3, and always applies downward pressure to the top ball 3; the micro switch assembly 5 is arranged above the housing 2, including a switch seat 51 and a micro switch 52, the switch seat 51 is connected to the housing 2, and the micro switch 52 is installed on the switch seat 51, and its start end faces the through hole. When the oil cup 7 is connected to the oil cup 7 mounting structure, the oil cup 7 hanging ear on the oil cup 7 is installed in the gap a, and the oil cup 7 hanging ear is upwardly acted on the lower end surface of the top ball 3, and the top ball 3 rises along the cavity 21, and the top rod 32 extends through the through hole and starts the micro switch 52. After the micro switch 52 is started, the micro switch 52 sends a signal to the main control module, and the main control module determines that the oil cup 7 is installed in place on the range hood.

[0041] The timing module is used to count the installation time t1 of the oil cup 7 on the range hood and the operation time T of the smoke exhaust fan. The installation time t1 of the oil cup 7 on the range hood refers to the time from when the oil cup 7 is first installed on the oil cup 7 installation structure or when it is removed and cleaned and then reinstalled on the oil cup 7 installation structure to the next time it is removed and cleaned. The operation time T of the smoke exhaust fan refers to the operation time between when the smoke exhaust fan is removed and cleaned and then reinstalled on the oil cup 7 installation structure to the next time it is removed and cleaned.

[0042] The warning module is used to remind the user when the oil cup 7 needs to be cleaned, or to remind the user when the main control module fails to detect that the oil cup 7 is installed on the oil cup 7 installation structure for a long time. Other scenarios that require warnings can also be set to warn. In one example, the warning module can be an audio and visual warning module, an electronic warning module, and a software warning module.

[0043] In order to remind the user when to clean the oil cup 7, Figure 3 As shown, the oil cup 7 cleaning prompt method includes the following steps:

[0044] S1: the oil cup 7 detection module detects whether the oil cup 7 is installed on the range hood; if so, execute step S2: determine whether the installation time t1 counted by the timing module is 0; if so, enter step S3.

[0045] The oil cup 7 is used to hold the oil produced in the process of filtering oil smoke by the range hood. The user will remove the oil cup 7 to clean it after it is full of oil. Therefore, the oil cup 7 will be frequently removed and installed. After the oil cup 7 is installed on the range hood, the main control module controls the timing module to count the installation time t1 of the oil cup 7 installed on the range hood. The installation time t1 represents the duration of the current round of installation. The recording mode is from the start of installation to the end of removal, and the timing will be restarted after the next installation. Since the amount of oil in the oil cup 7 is determined by the cumulative time of the oil cup 7 being installed on the range hood, after the continuous installation time of the oil cup 7 on the range hood reaches the system setting, the system determines that the oil cup 7 needs to be cleaned. When the oil cup 7 detection module detects that the oil cup 7 is installed on the range hood and the installation time t1 counted by the timing module is 0, the possible situation is: the oil cup 7 is installed on the range hood for the first time or the oil cup 7 is removed from the range hood for cleaning and then installed on the range hood again. When the oil cup 7 is installed on the range hood for the first time, the installation time counted by the timing module is 0. When the oil cup 7 is removed from the range hood for cleaning, the main control module needs to reset the time counted by the timing module to 0. When the oil cup 7 is installed on the range hood again, the timing module needs to re-count based on the installation time t1 being 0, so that the installation time of the oil cup 7 on the range hood is accurate. After detecting that the oil cup 7 is installed on the range hood, the main control module obtains the installation time t1 counted by the timing module, and enters step S3 when the installation time t1 counted by the timing module is 0.

[0046] S3: The timing module times the installation time t1 of the oil cup 7 on the range hood. After detecting that the oil cup 7 is installed on the range hood, the main control module retrieves the installation time t1 counted by the timing module. When the installation time t1 is zero, it indicates that a new round of oil cup 7 cleaning reminder process has begun. The new round may be the first time that the oil cup 7 is installed on the range hood, or the oil cup 7 may be installed on the range hood again after being cleaned. When the installation time t1 is not zero, it indicates that the oil cup 7 has not ended in the current round of reminder process, and the oil cup 7 has been temporarily removed (for example, the user actively checks the status of the oil cup 7). It should be noted that a round of reminder process refers to the process from the installation of the oil cup 7 on the range hood to the cumulative time reaching the set time. After the installation time of the oil cup 7 on the range hood reaches the set value, the main control module prompts the user to clean it. If the current round of reminder process has not ended, the oil cup 7 is only temporarily removed, and the main control module controls the timing module to continue to count the installation time t1 based on the counted time.

[0047] S4: During the installation time t1 when the oil cup 7 is installed on the range hood, during each startup of the range hood, the timing module respectively times and accumulates the running time T of the exhaust fan at different gears. During a new round of prompts, the main control module controls the timing module to start timing from zero from the time the oil cup 7 is installed on the range hood to count the installation time t1. In order to predict the total amount of oil pollution N generated by the range hood during a new round of prompts, it is necessary to count the running time T of the exhaust fan. The running time T of the exhaust fan indicates the length of time the range hood is used during cooking. The longer the cooking time, the more oil pollution accumulates in the oil cup 7. The total amount of oil pollution N can be predicted by counting the running time T of the exhaust fan. Since the oil pollution generated by the range hood is different at different gears, it is necessary to predict the amount of oil pollution generated by the range hood at different gears separately in order to accurately predict the total amount of oil pollution N. The main control module monitors the gear of the exhaust fan and controls the timing module to count the corresponding gears separately. In one example, the gears of the exhaust fan include at least low gear, medium gear, high gear and stir-fry gear. During a cooking process, you may use several gears, including low, medium, high and stir-fry gears. Record the running time of different gears respectively, and obtain the running time T1 corresponding to the low gear, the running time T2 corresponding to the medium gear, the running time T3 corresponding to the high gear and the running time T4 corresponding to the stir-fry gear. Use the running time T1, running time T2, running time T3 and running time T4 as the running time T of the corresponding gears respectively.

[0048] S5: The main control module calculates the amount of oil pollution generated by the smoke exhaust fan within the cumulative running time T at different gears, and calculates the total amount of oil pollution N generated by the smoke exhaust fan within the installation time t1 when the oil cup 7 is installed on the smoke exhaust fan: if the total amount of oil pollution N reaches the set value, the early warning module will issue an early warning. The main control module can predict and calculate the amount of oil pollution generated by the smoke exhaust fan within the cumulative running time T at different gears after each cooking is completed, and can predict and calculate the amount of oil pollution generated within the cumulative running time T of the previous gear after switching the gear. In the example where the gear of the smoke exhaust fan includes at least low gear, medium gear, high gear and stir-fry gear, the amount of oil pollution generated corresponding to the low gear, the amount of oil pollution generated corresponding to the medium gear, the amount of oil pollution generated corresponding to the high gear and the amount of oil pollution generated corresponding to the stir-fry gear are predicted and calculated respectively, and the sum of the amount of oil pollution generated corresponding to the low gear, the amount of oil pollution generated corresponding to the medium gear, the amount of oil pollution generated corresponding to the high gear and the amount of oil pollution generated corresponding to the stir-fry gear is taken as the total amount of oil pollution N. When the total amount of oil pollution N reaches the set value, the main control module controls the early warning module to issue an early warning. The warning module can warn the user through sound and light, or send information to the user's mobile device for warning, and the corresponding warning is carried out according to different warning modules. It should be noted that the set value can be set according to actual needs, for example, the set value is 70%, 80% or 90% of the rated capacity of the oil cup 7.

[0049] In order to accurately calculate the total amount of oil pollution N, in one example, in step S5, the method for calculating the total amount of oil pollution N generated by the smoke exhaust fan within the installation time t1 when the oil cup 7 is installed on the smoke exhaust fan is:

[0050] During the installation time t1 of the oil cup 7 being installed on the range hood, during each startup of the range hood:

[0051] The low-speed cumulative running time of the exhaust fan is T1, and according to the oil pollution generating speed m1, the generated oil pollution amount P1 is calculated as T1*m1, and the oil pollution amount P1 data is stored in the main control module; the mid-speed running time of the exhaust fan is T2, and according to the oil pollution generating speed m2, the generated oil pollution amount P2 is calculated as T2*m2, and the oil pollution amount P2 data is stored in the main control module; the high-speed running time of the exhaust fan is T3, and according to the oil pollution generating speed m3, the generated oil pollution amount P3 is calculated as T3*m3, and the oil pollution amount P3 data is stored in the main control module. Block; the exhaust fan stir-fry gear running time T4, and according to the oil pollution generation speed m4, calculate the generated oil pollution amount P4 = T4 * m4, and store the oil pollution amount P4 data in the main control module; then, during each startup of the range hood, the accumulated oil pollution amount M1 = P1 + P2 + P3 + P4, and store the oil pollution amount M1 data in the main control module; calculate the total accumulated oil pollution amount N = M1 + M2 + M3 + ... Mi of the range hood within the installation time t1 when the oil cup 7 is installed on the range hood; wherein m1 < m2 < m3 < m4. It should be noted that in the example where the gear of the exhaust fan includes at least low gear, medium gear, high gear and stir-fry gear, the ability to absorb oil smoke increases from low gear, medium gear, high gear to stir-fry gear, respectively, and is used for the situation where the amount of oil smoke produced during the cooking process is from low to high, therefore, the oil pollution generation speed corresponding to the low gear, medium gear, high gear and stir-fry gear is getting higher and higher. In an example, the oil pollution generation speed m1, the oil pollution generation speed m2, the oil pollution generation speed m3 and the oil pollution generation speed m4 are the average oil pollution generation speeds measured in multiple tests when the smoke exhaust fan is running at the corresponding gear within the corresponding oil smoke concentration C.

[0052] In order to realize automatic adjustment of the gear of the range hood according to the fume concentration, in one example, the range hood also includes a smoke concentration detection module, which detects the fume generated by the user during cooking in real time and automatically adjusts the operating gear of the exhaust fan according to the fume concentration C. The smoke concentration detection module is a device used to detect the smoke concentration in the environment, and is usually composed of a sensor, a signal processing circuit, an output interface, etc. In one example, the smoke concentration detection module is an ion smoke detection module, a photoelectric smoke detection module, or a photoelectric smoke detection module. The main control module controls the gear of the exhaust fan according to the fume concentration detected by the smoke concentration detection module, so that the range hood can switch between low, medium, high and stir-fry gears according to the smoke concentration.

[0053] In order to ensure that in each round of prompting process, the total amount of oil pollution N in the current round of prompting process can be accurately calculated to accurately remind the user to clean. In step S2, if the installation time t1 is 0, when step S4 starts to be executed, the timing module clears the running time T of the smoke exhaust fan and restarts the timing and accumulation. When step S5 starts, the main control module clears the total amount of oil pollution N and re-measures and accumulates. When the installation time t1 is 0, it means that a new round of oil cup 7 cleaning prompting process has begun, and the amount of oil pollution needs to be recalculated. The main control module will control the data generated in the previous round of prompting process to be cleared, and a new round of oil cup 7 cleaning prompting process will be carried out. Specifically, the main control module controls the timing module to clear the running time T of the previous round, and the main control module clears the total amount of oil pollution N of the previous round, and regenerates the data corresponding to the new round of prompting process, so as to achieve accurate prompting for each round.

[0054] In order to determine whether the user removes the oil cup 7 from the range hood for cleaning the oil cup 7 or for temporary inspection, the main control module can distinguish whether it is entering a new round of the oil cup 7 cleaning reminder process or is in the current round of the oil cup 7 cleaning reminder process. In one example, the timing module also includes a timer for counting the departure time t2 from when the oil cup 7 leaves the range hood to when the oil cup 7 is installed on the range hood again; after the oil cup 7 leaves the range hood, the timing module starts timing the departure time t2 of the oil cup 7. If the departure time t2 ≥ the first preset time t3, the timing module will reset the installation time t1 of the oil cup 7 on the range hood. When the oil cup 7 is installed on the range hood again, the installation time t1 obtained in step S2 is 0. It should be noted that the main control module determines whether the oil cup 7 is removed through the oil cup 7 detection module. For example, if the oil cup 7 detection module does not generate an electrical signal to transmit to the main control module, the main control module determines that the oil cup 7 is removed from the range hood. In one example, the oil cup 7 detection module is a micro switch assembly 5. In a specific detection process, the micro switch assembly 5 is arranged above the housing 2, and includes a switch seat 51 and a micro switch 52. The switch seat 51 is connected to the housing 2, and the micro switch 52 is installed on the switch seat 51, with its activation end facing the through hole. When the oil cup 7 is removed from the oil cup 7 installation structure, the force of the oil cup 7 hanging ear on the oil cup 7 on the lower end surface of the top bead 3 disappears, the top bead 3 descends along the cavity 21, and the top rod 32 retracts through the through hole. The micro switch 52 is not activated, so it is detected that the oil cup 7 is removed from the range hood. When the main control module detects that the oil cup 7 is removed from the range hood, it controls the timing module to count the departure time t2. Among them, the first preset time t3 is the time value set in the main control module. The first preset time t3 is used to determine whether the user removes the oil cup 7 to clean the oil cup 7. Because cleaning the oil cup 7 requires a certain amount of time, when the time t2 when the oil cup 7 leaves the range hood is greater than the first preset time t3, it means that the user is cleaning the oil cup 7. After cleaning, the oil cup 7 is installed on the range hood, and a new round of oil cup 7 cleaning reminder process is entered. The main control module controls the timing module to reset and recalculates the installation time t1. In one example, 10″<first preset time t3<60″, for example, the first preset time t3 is 20″, 30″, 40″ or 50″.

[0055] If the departure time t2 is less than the first preset time t3, then in step S2, the installation time t1 is not 0, and in step S3, the timing module does not clear the installation time t1 and continues to time the installation time t1 of the oil cup 7 on the range hood; in step S4, the timing module does not clear the smoke exhaust fan and continues to accumulate the running time T of the smoke exhaust fan at different gears; at the same time, in step S5, the main control module does not clear the total oil pollution amount N and continues to accumulate the total oil pollution amount N. If the leaving time t2 is less than the first preset time t3, it indicates that the user is not cleaning the oil cup 7 but is temporarily checking the oil cup 7. Therefore, the time when the oil cup 7 is removed is very short and the range hood will not enter a new round of oil cup 7 cleaning reminder process, but will also process the current round of oil cup 7 cleaning reminder process. The main control module will retain the state of the oil cup 7 before it is removed, and after the oil cup 7 is installed, continue to perform statistics on the retained state of the oil cup 7 before it is removed, specifically including after the oil cup 7 is reinstalled on the range hood, continuing with the situation when the oil cup 7 is removed, continuing to perform statistics on the installation time t1 and the operating time T, and continuing to calculate the total amount of oil pollution N.

[0056] By judging that the leaving time t2 of the oil cup 7 ≥ the first preset time t3, it is judged that the user removes the oil cup 7 from the range hood for cleaning rather than temporarily checking the condition of the oil cup 7. When the oil cup 7 is reinstalled on the range hood after cleaning, the main control module controls the retiming and calculation of the oil pollution. When the leaving time t2 of the oil cup 7 < the first preset time t3, it is judged that the user removes the oil cup 7 from the range hood for temporarily checking the condition of the oil cup 7 rather than for cleaning the oil cup 7. In this case, the main control module will not control the retiming and calculation of the oil pollution. In this way, it can avoid the situation where the temporary removal of the oil cup 7 to check the condition of the oil cup 7 triggers the retiming and calculation of the oil pollution, which leads to the error of oil pollution monitoring, so that the user can be accurately prompted to clean the oil cup 7.

[0057] In the case of low frequency of use of the range hood, in order to prevent the total amount of oil from accumulating in the oil cup 7 for a long time and causing difficulty in cleaning due to failure to reach the standard for prompting cleaning, in one example, when the installation time t1 of the oil cup 7 on the range hood reaches the preset installation time or the total amount of oil N reaches the preset amount of oil, the warning module will issue an alarm. When the range hood is used less frequently, the amount of oil generated is relatively small, and the speed of accumulation inside the oil cup 7 is relatively slow. However, after the range hood is placed for a long time, the oil accumulated in the oil cup 7 will adhere to the oil cup 7 more firmly, making it difficult to clean. If the oil is not cleaned for a long time, a large number of bacteria will breed. Therefore, when the total amount of oil does not reach the set value, the installation time of the oil cup 7 on the range hood reaches the set value, and the warning module will also issue an alarm. It should be noted that the preset installation time is greater than the time required to accumulate the total amount of oil N when the range hood is used at the normal frequency corresponding to different usage scenarios. At the same time, the preset installation time cannot be set too long, which will make it difficult to clean and breed bacteria.

[0058] In order to intuitively display the state of the oil cup 7 and the operation of the range hood, in one example, the range hood also has a control panel. For example, the control panel is a touch panel to display functions, and the range hood can be operated by operating the control panel. At the same time, the control panel has a display function to display the state of the oil cup 7.

[0059] In step S1, if the oil cup 7 detection module detects that the oil cup 7 is installed on the range hood, the state of the oil cup 7 is displayed on the control panel; in step S1, if the oil cup 7 detection module detects that the oil cup 7 is not installed on the range hood, and after waiting time t4, the oil cup 7 is not detected to be installed on the range hood, the main control module displays the state of the oil cup 7 (the oil cup 7 is not installed) on the control panel and reminds the user to install the oil cup 7. For example, a first state graphic and a second state graphic are set on the control panel, and when the oil cup 7 detection module detects that the oil cup 7 is installed on the range hood, the first state graphic lights up, and when the oil cup 7 detection module detects that the oil cup 7 is not installed on the range hood, the second state graphic lights up. For another example, a state graphic is set on the control panel, and when the oil cup 7 detection module detects that the oil cup 7 is installed on the range hood, the state graphic is lit in a first color, and when the oil cup 7 detection module detects that the oil cup 7 is not installed on the range hood, the state graphic is lit in a second color. For another example, the status of the oil cup 7 is displayed in text on the control panel. When the oil cup 7 detection module detects that the oil cup 7 is installed on the range hood, the control panel displays "Oil cup 7 is installed". When the oil cup 7 detection module detects that the oil cup 7 is not installed on the range hood, the control panel displays "Oil cup 7 is not installed". The waiting time t4 is used to determine the situation where the oil cup 7 has not been installed for a long time after being removed. For example, the user forgets to install the oil cup 7 back on the range hood after cleaning it. In one example, the waiting time t4 is greater than the first preset time t3. This ensures that the oil cup 7 is always installed on the range hood during the operation of the range hood to prevent oil stains from the range hood from dripping onto the stove.

[0060] In order to avoid the oil cup 7 from falling due to incorrect installation, in one example, the oil cup 7 cleaning reminder method further includes the following steps: when the range hood is turned on and running, if the oil cup 7 detection module has poor contact with the oil cup 7 within the second preset time t5, it is judged that the oil cup 7 is not installed in place on the range hood, and the main control module displays the state of the oil cup 7 (the oil cup 7 is not installed correctly) on the control panel and reminds the user to check the state of the oil cup 7. The poor contact between the oil cup 7 detection module and the oil cup 7 means that the oil cup 7 is frequently and continuously detected to be installed on the range hood, and sometimes not installed on the range hood. If it is not installed on the range hood correctly, it will cause the oil cup 7 to fall, and the user needs to be reminded to reinstall the oil cup 7. The second preset time t5 is set to avoid misjudgment caused by the state of the oil cup 7 not being fully and correctly detected when the range hood is just started. If the oil cup 7 detection module still has poor contact with the oil cup 7 after the second preset time t5 is started, it is judged that the oil cup 7 is not installed in place on the range hood. In one example, the oil cup 7 detection module is a micro switch assembly 5. In a specific detection process, the micro switch assembly 5 is arranged above the shell 2, including a switch seat 51 and a micro switch 52. The switch seat 51 is connected to the shell 2, and the micro switch 52 is installed on the switch seat 51, with its starting end facing the through hole. When the oil cup 7 is connected to the oil cup 7 mounting structure, the oil cup 7 hanging ear on the oil cup 7 is installed in the gap a, and the oil cup 7 hanging ear is subjected to an upward force on the lower end surface of the top ball 3. The top ball 3 rises along the cavity 21, and the top rod 32 extends through the through hole and starts the micro switch 52. However, since the top rod 32 has not been completely extended, the micro switch 52 is in an incompletely started state.

[0061] A third state graphic and a second state graphic are set on the control panel. When it is determined that the oil cup 7 is not installed in place on the range hood, the third state graphic lights up. For another example, a state graphic is set on the control panel. When it is determined that the oil cup 7 is not installed in place on the range hood, the state graphic is lit in a third color. For another example, the state of the oil cup 7 is displayed in text on the control panel. When it is determined that the oil cup 7 is not installed in place on the range hood, the control panel displays "Oil cup 7 is not installed correctly". This reminds the user to check the installation of the oil cup 7.

[0062] The oil cup 7 cleaning reminder method of the present application is carried out through the following steps: S1: the oil cup 7 detection module detects whether the oil cup 7 is installed on the range hood; if so, execute step S2: determine whether the installation time t1 counted by the timing module is 0; if so, enter step S3; S3: the timing module times the installation time t1 of the oil cup 7 on the range hood; S4: within the installation time t1 when the oil cup 7 is installed on the range hood, each time the range hood is started, the timing module times and accumulates the running time T of the smoke exhaust fan at different gears; S5: the main control module calculates the amount of oil pollution generated by the smoke exhaust fan within the accumulated running time T at different gears, and calculates the total amount of oil pollution N generated by the smoke exhaust fan within the installation time t1 when the oil cup 7 is installed on the range hood: if the total amount of oil pollution N reaches the set value, the early warning module will issue an early warning. The present application monitors the oil accumulated in the oil cup 7 during use based on a software method, without the need to install additional sensors and wiring on the range hood, thus avoiding changes to the structure of the range hood, increasing the practicality of oil monitoring, and avoiding cost issues caused by structural changes.

[0063] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for reminding an oil cup to clean, characterized in that: The oil cup cleaning reminder method is used for a range hood, which includes a main control module, an oil cup detection module, a timing module, a smoke exhaust fan and an early warning module. The timing module is used to count the installation time t1 of the oil cup on the range hood and the operation time T of the smoke exhaust fan. The oil cup cleaning reminder method includes the following steps: S1: the oil cup detection module detects whether the oil cup is installed on the range hood; if so, executing step S2: determining whether the installation time t1 counted by the timing module is 0; if so, proceeding to step S3; S3: the timing module times the installation time t1 of the oil cup on the range hood; S4: within the installation time t1 of the oil cup being installed on the range hood, during each startup of the range hood, the timing module respectively times and accumulates the running time T of the smoke exhaust fan at different gears; S5: The main control module calculates the amount of oil pollution generated by the smoke exhaust fan within the cumulative running time T at different gears, and calculates the total amount of oil pollution N generated by the smoke exhaust fan within the installation time t1 when the oil cup is installed on the smoke exhaust fan: if the total amount of oil pollution N reaches the set value, the early warning module will issue an early warning.

2. The oil cup cleaning prompting method according to claim 1, characterized in that: In step S2, if the installation time t1 is 0, when step S4 starts to be executed, the timing module clears the operating time T and restarts timing and accumulation. When step S5 starts, the main control module clears the total oil pollution amount N and restarts measurement and accumulation.

3. The oil cup cleaning prompting method according to claim 1, characterized in that: The timing module also includes a module for counting the departure time t2 of the oil cup from the time it leaves the range hood to the time it is installed on the range hood again; after the oil cup leaves the range hood, the timing module starts to count the departure time t2 of the oil cup, and if the departure time t2 ≥ the first preset time t3, the timing module will reset the installation time t1 of the oil cup on the range hood, and when the oil cup is installed on the range hood again, the installation time t1 obtained in step S2 is 0, wherein the first preset time t3 is the time value set in the main control module, and 10″<the first preset time t3<60″.

4. The oil cup cleaning prompting method according to claim 3, characterized in that: If the departure time t2 is less than the first preset time t3, then in step S2, the installation time t1 is not 0, and in step S3, the timing module does not clear the installation time t1 and continues to time the installation time t1 of the oil cup on the range hood; in step S4, the timing module does not clear the smoke exhaust fan and continues to accumulate the operating time T of the smoke exhaust fan at different gears; at the same time, in step S5, the main control module does not clear the total oil pollution amount N and continues to accumulate the total oil pollution amount N.

5. The oil cup cleaning prompting method according to claim 1, characterized in that: When the installation time t1 of the oil cup on the range hood reaches the preset installation time or the total oil pollution amount N reaches the preset oil amount, the early warning module will issue an early warning.

6. The oil cup cleaning prompting method according to claim 1, characterized in that: In step S5, the method for calculating the total amount of oil pollution N generated by the smoke exhaust fan within the installation time t1 when the oil cup is installed on the smoke exhaust fan is: During the installation time t1 when the oil cup is installed on the range hood, during each startup of the range hood: The exhaust fan is operated at a low gear for a cumulative time T1, and according to the oil pollution generation speed m1, the generated oil pollution amount P1=T1*m1 is calculated, and the oil pollution amount P1 data is stored in the main control module; The exhaust fan is operated at mid-range for a time period of T2, and according to the oil pollution generation speed m2, the generated oil pollution amount P2=T2*m2 is calculated, and the oil pollution amount P2 data is stored in the main control module; The high-end operation time of the exhaust fan is T3, and according to the oil pollution generation speed m3, the generated oil pollution amount P3=T3*m3 is calculated, and the oil pollution amount P3 data is stored in the main control module; The exhaust fan stir-fry gear runs for a time T4, and according to the oil pollution generation speed m4, the generated oil pollution amount P4=T4*m4 is calculated, and the oil pollution amount P4 data is stored in the main control module; Then, during each startup of the range hood, the accumulated amount of oil pollution M1 = P1 + P2 + P3 + P4, and the oil pollution amount M1 data is stored in the main control module; Calculate the total accumulated amount of oil pollution of the range hood during the installation time t1 when the oil cup is installed on the range hood, N=M1+M2+M3+...Mi; Among them, m1<m2<m3<m4.

7. The oil cup cleaning prompting method according to claim 6, characterized in that: The range hood also includes a smoke concentration detection module, which detects the oil smoke generated during the user's cooking process in real time and automatically adjusts the operating gear of the smoke exhaust fan according to the oil smoke concentration C; the oil pollution generation speed m1, the oil pollution generation speed m2, the oil pollution generation speed m3 and the oil pollution generation speed m4 are the average oil pollution generation speeds measured in multiple tests when the smoke exhaust fan is running at the corresponding gear within the corresponding oil smoke concentration C.

8. The oil cup cleaning prompting method according to claim 1, characterized in that: The range hood also has a control panel. In step S1, if the oil cup detection module detects that the oil cup is installed on the range hood, the status of the oil cup is displayed on the control panel; in step S1, if the oil cup detection module detects that the oil cup is not installed on the range hood, and after waiting time t4, the oil cup is not detected to be installed on the range hood, the main control module displays the status of the oil cup on the control panel and reminds the user to install the oil cup.

9. The oil cup cleaning prompting method according to claim 8, characterized in that: The oil cup cleaning prompting method further comprises the following steps: When the range hood is turned on and running, if the oil cup detection module has poor contact with the oil cup within the second preset time t5, it is determined that the oil cup is not properly installed on the range hood, and the main control module displays the status of the oil cup on the control panel and reminds the user to check the status of the oil cup.

10. The oil cup cleaning prompting method according to claim 1, characterized in that: The oil cup detection module is a micro switch assembly. After the oil cup is installed on the range hood, the micro switch assembly is activated. After the oil cup leaves the range hood, the micro switch assembly is closed. In step S1, the main control module determines whether the oil cup is correctly installed on the range hood by judging the state of the micro switch assembly. The range hood is provided with an oil cup mounting structure, which includes a base, a shell, a top bead and an elastic member. The shell is arranged above the base. After the shell and the base are connected in place, there is a gap between the upper surface of one side of the base and the lower surface of the corresponding side of the base. The side of the shell corresponding to the gap has a cavity with an opening facing downward, and the top of the cavity has a through hole that penetrates the cavity. The top bead is slidably connected to the The micro switch assembly is arranged above the shell, and includes a switch seat and a micro switch. The switch seat is connected to the shell, and the micro switch is installed on the switch seat, and its starting end faces the through hole. When the oil cup is connected to the oil cup mounting structure, the oil cup hanging ear on the oil cup is installed in the gap, and the oil cup hanging ear is upwardly applied with an upward force on the lower end surface of the top ball, and the top ball rises along the cavity, and the push rod extends through the through hole and starts the micro switch.

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