Cleaning control system and method

Abstract

The invention provides a cleaning control system and method, and relates to the technical field of kitchen appliances, the cleaning control system provided by the invention comprises a detection assembly, a controller, a storage module and a cleaning execution mechanism, and the detection assembly, the storage module and the cleaning execution mechanism are all connected with the controller; the cleaning executing mechanism has N levels of cleaning states with the cleaning capacity enhanced along with increasing of the levels, and N is a positive integer; the controller is configured to compare the first working information with first preset information and control the cleaning execution mechanism to enter a corresponding cleaning state; the controller is further configured to compare the second working information with the second preset information after the cleaning executing mechanism completes the n-level cleaning state for the first time, control the cleaning executing mechanism to end the cleaning state and enter the n-level cleaning state or enter the other-level cleaning state again, and n is smaller than N. According to the cleaning control system provided by the invention, each cleaning process does not need to depend on a manual instruction for operation, and the use of a user is facilitated.

Description

Technical Field

[0001] This invention relates to the field of kitchen appliance technology, and in particular to a cleaning control system and method. Background Technology

[0002] As an important piece of equipment in modern kitchens, the intelligence level of the cleaning system of range hoods is constantly improving.

[0003] In existing range hood cleaning systems, optical or conductivity sensors are installed in the liquid storage tank. After the initial cleaning, if the sensor detects that the turbidity or conductivity of the cleaning liquid has not reached a preset threshold, the controller activates the cleaning device to perform another cleaning cycle until the turbidity or conductivity of the cleaning liquid reaches the preset threshold, indicating that the range hood is clean and completing one cleaning cycle. However, this method still requires the user to manually initiate the initial cleaning; that is, each cleaning cycle relies on manual commands. The range hood cleaning system cannot automatically trigger subsequent cleaning cycles based on parameters such as the actual usage status of the range hood. Summary of the Invention

[0004] The purpose of this invention is to provide a cleaning control system that eliminates the need for manual operation during each cleaning process, thus simplifying user operation. Additionally, a cleaning control method is provided that applies to the aforementioned cleaning control system.

[0005] To achieve the above objectives, the present invention provides the following technical solution: In a first aspect, the present invention provides a cleaning control system, including a detection component, a controller, a storage module, and a cleaning actuator, wherein the detection component, the storage module, and the cleaning actuator are all connected to the controller; The detection component is configured to detect the first and second operating information of the range hood; The storage module is configured to store at least first preset information and second preset information, and the cleaning actuator has N levels of cleaning states where the cleaning capability increases with the level, where N is a positive integer; The controller is configured to compare the first working information and the first preset information, and control the cleaning actuator to enter the corresponding cleaning state; the controller is also configured to compare the second working information and the second preset information after the cleaning actuator completes the n-level cleaning state for the first time, and control the cleaning actuator to end the cleaning state, re-enter the n-level cleaning state, or enter another level cleaning state, where n < N.

[0006] The cleaning control system in the above embodiments can control the cleaning actuator to enter the corresponding operating state according to the first working information, and adjust the cleaning actuator to end the cleaning state, re-enter the previous cleaning state, or enter another level of cleaning state according to the second working information. Each cleaning process does not require manual operation, which is convenient for users.

[0007] In an optional implementation, the second operating information includes the actual current of the motor, and the second preset information includes the initial current of the range hood, after the cleaning actuator completes the n-level cleaning state for the first time: When the detection component first detects that the actual current is greater than the initial current, the controller is configured to control the cleaning actuator to re-enter the n-level cleaning state. When the actual current is detected to be no greater than the initial current for the first time, the controller is configured to control the cleaning actuator to end the cleaning state.

[0008] The above implementation method determines whether the impeller is clean by detecting the actual current of the motor. Specifically, as the cleaning process progresses, the dirt on the impeller is gradually removed, and the motor load decreases accordingly. This is reflected in the motor current, where the actual current gradually approaches the initial current. When the actual current is not greater than the initial current, or the difference between the actual current and the initial current is less than or equal to a preset threshold, the impeller can be determined to be sufficiently cleaned. The controller can control whether to restart the cleaning actuator based on the motor current, avoiding the impact of a single poor cleaning result on the performance of the range hood.

[0009] In an optional implementation, when the detection component detects for the second time that the actual current is greater than the initial current, the controller is configured to control the cleaning actuator to enter the n+m level cleaning state, where m is a positive integer and n+m≤N.

[0010] The above implementation method can dynamically adjust the cleaning process according to the actual cleaning effect, avoiding the problems of over-cleaning or incomplete cleaning, and improving cleaning efficiency and user experience.

[0011] In an optional implementation, after the cleaning actuator completes the N-level cleaning state for the first time, the controller is configured to control the cleaning actuator to enter the N-level cleaning state multiple times consecutively.

[0012] When the cleaning actuator completes the N-level cleaning state for the first time, which is the first time it completes the highest level of cleaning, it indicates that the range hood was severely polluted by kitchen fumes before cleaning. The controller can control the cleaning actuator to enter the N-level cleaning state multiple times in succession to improve the cleanliness of the range hood.

[0013] In an optional implementation, the first working information includes the actual concentration of oil fumes and the actual running time of the range hood, and the first preset information includes the set concentration of oil fumes and the set running time of the range hood. The controller is configured to compare the actual concentration of the oil fume with the set concentration of the oil fume, and to compare the actual running time of the range hood with the set running time of the range hood to control the cleaning actuator to enter the corresponding cleaning state.

[0014] In an optional implementation, the set concentration of oil fumes includes a first threshold and a second threshold, wherein the oil fume concentration corresponding to the first threshold is less than the oil fume concentration corresponding to the second threshold; the set operating time of the range hood includes a first time and a second time, wherein the duration of the first time is less than the duration of the second time.

[0015] In an optional implementation, when the actual concentration of the oil fume is less than the first threshold: When the actual running time of the range hood is greater than the first time, the controller is configured to control the cleaning actuator to enter the first-level maintenance state; When the actual running time of the range hood is less than the first time, the controller is configured to not operate.

[0016] In an optional implementation, when the actual concentration of the oil fume is greater than the first threshold and less than the second threshold: When the actual running time of the range hood is greater than the second time, the controller is configured to control the cleaning actuator to enter the secondary cleaning state; When the actual running time of the range hood is less than the second time, the controller is configured to not operate.

[0017] In an optional implementation, when the actual concentration of the oil fume is greater than the second threshold, the controller is configured to control the cleaning actuator to enter a level three cleaning state.

[0018] In an optional implementation, the cleaning actuator further includes a display module configured to display a reference time until the next activation of the cleaning actuator.

[0019] Secondly, the present invention provides a cleaning control method using the cleaning control system described in any of the foregoing embodiments, comprising: The detection component detects the first operating information and the second operating information of the range hood; The storage module stores at least the first preset information and the second preset information; The controller compares the first working information and the first preset information and controls the cleaning actuator to enter the corresponding cleaning state. After the cleaning actuator completes the n-level cleaning state for the first time, the controller compares the second working information and the second preset information, and controls the cleaning actuator to end the cleaning state, re-enter the n-level cleaning state, or enter another level of cleaning state, where n < N.

[0020] In summary, the cleaning control system and method provided by this invention can produce at least the following beneficial effects: Compared with the prior art, the cleaning control system provided by the first aspect of the present invention can control the cleaning actuator to enter the corresponding operating state according to the first working information, and adjust the cleaning state of the cleaning actuator according to the second working information. Each cleaning process does not require manual operation, which is convenient for users.

[0021] The cleaning control method provided by the second aspect of the present invention has the beneficial effects of the cleaning control system provided by the first aspect of the present invention. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 A flowchart illustrating the principle of a cleaning control system provided in an embodiment of the present invention; Figure 2 A three-dimensional structural diagram of a self-cleaning range hood provided in an embodiment of the present invention, viewed from a first perspective. Figure 3 A three-dimensional structural schematic diagram of the impeller spray cleaning device provided in an embodiment of the present invention from a first perspective. Figure 4 A three-dimensional structural schematic diagram of the impeller spray cleaning device provided in an embodiment of the present invention from a second perspective; Figure 5 A three-dimensional structural diagram of the self-cleaning range hood provided in an embodiment of the present invention, viewed from a second perspective. Figure 6 A three-dimensional structural diagram of a self-cleaning range hood component provided in an embodiment of the present invention, viewed from a first perspective. Figure 7 A three-dimensional structural diagram of a self-cleaning range hood component provided in an embodiment of the present invention, viewed from a second perspective. Figure 8 for Figure 7 A magnified view of part A.

[0024] Icons: 1-Liquid supply mechanism; 11-First liquid supply component; 111-First housing; 112-Second housing; 113-Liquid inlet pipe; 12-Second liquid supply component; 13-Cleaning media treatment component; 2-Spray pipe assembly; 21-Inner spray pipe; 211-First nozzle; 22-Outer spray pipe; 221-Second nozzle; 23-Liquid supply pipe; 24-Diverting pipe; 3-Impeller; 4-Top plate; 5-Vortex; 51-Groove; 6-Fume concentration module; 7-Fume hood. Detailed Implementation

[0025] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0028] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0029] A first aspect of the present invention provides a cleaning control system, including a detection component, a controller, a storage module, and a cleaning actuator, wherein the detection component, the storage module, and the cleaning actuator are all connected to the controller; The detection component is configured to detect the first and second operating information of the range hood; The storage module is configured to store at least the first preset information and the second preset information. The cleaning actuator has N levels of cleaning states where the cleaning capability increases with the level, and N is a positive integer. The controller is configured to compare the first working information and the first preset information, and control the cleaning actuator to enter the corresponding cleaning state; the controller is also configured to compare the second working information and the second preset information after the cleaning actuator completes the n-level cleaning state for the first time, and control the cleaning actuator to end the cleaning state, re-enter the n-level cleaning state, or enter other cleaning states, where n < N.

[0030] In the above embodiments, the cleaning actuator has N levels of cleaning states, and the cleaning capability increases with the level. For example, the cleaning actuator has three levels of cleaning states, with the cleaning capability of the third level being stronger than that of the second level, and the cleaning capability of the second level being stronger than that of the first level.

[0031] Of course, N is not limited to three; it can be two, four, five, or six, etc. N can be any positive integer.

[0032] In use, the cleaning control system provided in the above embodiment first compares the first working information and the first preset information. Based on the comparison result, it controls the cleaning actuator to enter the corresponding operating state. After the above operating state is completed, the controller compares the second working information and the second preset information. Based on the comparison result, it controls the cleaning actuator to end the cleaning state and re-enter the n-level cleaning state or enter another level cleaning state. Compared with the prior art, each cleaning process does not require manual operation, making it convenient for users.

[0033] The aforementioned first working information may include one working information, or two, three, or more working information. The aforementioned first working information is used to reflect the smoke extraction performance of the range hood. For example, the aforementioned first working information may include one or more of the following: the actual concentration of oil fumes in the smoke collection hood, the actual running time of the range hood, the turbidity of the cleaning liquid, and the amount of oil stains covering the impeller surface.

[0034] Of course, the primary operating information is not limited to the examples mentioned above; any information that reflects the current smoke extraction performance of the range hood is acceptable. The controller compares the above information with the primary preset information to determine which cleaning level the cleaning actuator should enter, eliminating the need for user intervention and resulting in better automation.

[0035] In an optional implementation, the first working information includes the actual concentration of oil fumes and the actual running time of the range hood. Correspondingly, the detection component includes an oil fume concentration module 6 for detecting the oil fume concentration and a timing register for detecting the actual running time of the range hood. Of course, the timing module can also be integrated into the controller.

[0036] The fume concentration module 6 can be a fume concentration sensor, which can be installed inside the fume hood, either on the left or right side of the filter. This follows the common user preference for right-side stove placement. Figure 2 As shown, the oil fume concentration sensor is preferably located on the right side of the filter screen. The oil fume concentration sensor is used to detect the oil fume concentration each time cooking and to provide feedback to the control system.

[0037] The aforementioned oil fume concentration sensor can have a fixed sampling frequency, for example, it can collect the oil fume concentration in the fume collection hood every few seconds when the range hood is turned on, so as to realize the real-time detection of oil fume concentration.

[0038] When the first working information includes the actual concentration of oil fumes and the actual running time of the range hood, the first preset information includes the set concentration of oil fumes and the set running time of the range hood.

[0039] During use, the controller compares the actual concentration of oil fumes with the set concentration of oil fumes, as well as the actual running time and the set running time of the range hood, to control the cleaning actuator to enter the corresponding level of cleaning state.

[0040] In the above embodiments, the controller, by comprehensively judging the oil fume concentration and the range hood's running time, more accurately realizes intelligent and hierarchical control of the cleaning actuator, which not only avoids unnecessary frequent cleaning, but also ensures the cleaning effect and operating efficiency of the range hood, extends the service life of the equipment, and improves the user experience.

[0041] The following section provides a detailed explanation of the above-mentioned cleaning control system, using the example of a cleaning actuator that includes three levels of cleaning states.

[0042] In an optional implementation, the set concentration of oil fume includes a first threshold and a second threshold, wherein the oil fume concentration corresponding to the first threshold is less than the oil fume concentration corresponding to the second threshold; the set operating time of the range hood includes a first time and a second time, wherein the duration of the first time is less than the duration of the second time.

[0043] In the above embodiments, the set concentration of oil fumes includes not only a threshold, but also the set operating time of the range hood includes not only a single time value. This can effectively subdivide the smoke extraction performance of the range hood, thereby controlling the cleaning mechanism to enter multiple different levels of cleaning states and cleaning the components inside the range hood to different degrees in a targeted manner.

[0044] For ease of description, the first threshold is set as A, the second threshold as B, and the units of A and B are mg / m³. The first time is T1, the second time is T2, and the units of T1 and T2 are h. The above thresholds and time values ​​can be adjusted according to the actual use scenario and user needs.

[0045] In alternative implementations, such as Figure 1 As shown, when the actual concentration of cooking fumes is less than A: When the actual running time of the range hood exceeds T1, the controller will control the cleaning actuator to enter the first-level maintenance state. When the actual running time of the range hood is less than T1, the controller will not control the cleaning actuator to operate.

[0046] When the actual concentration of detected oil fumes is less than A, it is determined that there is less oil fume in the kitchen and the range hood is in a normal light working state. Real-time monitoring continues, and the actual running time of the range hood in the no-cleaning state is determined. When the light working state and the no-cleaning running time reaches T1 time, the cleaning actuator will enter the first-level maintenance state.

[0047] The advantage of the above setting is that, in most cases, when the range hood is working, a certain amount of oil fumes will be generated in the fume collection hood. The above setting can avoid the controller controlling the cleaning actuator to clean as soon as the oil fume concentration sensor detects oil fumes. The actual running time of the range hood without cleaning can be compared with T1 to correct whether the cleaning actuator really needs to take action.

[0048] The above implementation method improves the intelligence level of cleaning control and optimizes the user experience by using dual-condition judgment.

[0049] The T1 mentioned above can be set to 12h, 18h, 24h or 30h, etc., and users can set appropriate values ​​according to their needs.

[0050] The above-mentioned Level 1 maintenance status can be defined as the routine maintenance and cleaning status.

[0051] In alternative implementations, such as Figure 1 As shown, when the actual concentration of cooking fumes is greater than A and less than B: When the actual running time of the range hood is greater than T2, the controller is configured to control the cleaning actuator to enter the secondary cleaning state. When the actual running time of the range hood is less than T2, the controller is configured to not operate.

[0052] When the oil fume concentration reaches or exceeds A but is less than B, it indicates that the range hood has accumulated a certain amount of oil. The timing function is activated to record the duration of the oil fume concentration within this range. When the duration reaches T2 hours (e.g., 8 hours), the controller will control the cleaning actuator to enter the second-level maintenance state.

[0053] The advantages of the above settings are that the controller not only controls the cleaning actuator to enter the second-level maintenance state based on the current oil fume concentration, but also adjusts it in conjunction with the duration of the oil fume concentration state within this concentration range, making the control of the cleaning actuator more precise.

[0054] Of course, the above-mentioned actual running time of the range hood can also be the running time of the range hood in a state without cleaning.

[0055] The T2 mentioned above can be set to 6h, 8h or 10h, etc., and users can set an appropriate value according to their needs.

[0056] The above-mentioned level 2 maintenance state can be defined as a light cleaning state.

[0057] In an optional implementation, when the actual concentration of oil fumes is greater than B, it indicates that the kitchen is severely polluted by oil fumes and that the range hood has accumulated a lot of oil. Regardless of how long this concentration has lasted, the controller immediately determines that deep cleaning is required and controls the cleaning actuator to enter the third-level cleaning state.

[0058] The above three-level maintenance status can be defined as a deep cleaning status.

[0059] In an optional implementation, the second working information may include one working information, or two, three, or more working information. The second working information is used to reflect whether the structure to be cleaned has been completely cleaned. For example, the second working information may include one or more of the following: the actual current of the motor and the wind speed at the exhaust port.

[0060] In an optional implementation, the second operating information includes the actual current of the motor, and the second preset information includes the initial current of the range hood.

[0061] In the above embodiment, the cleaning status of the impeller 3 can be determined by detecting the actual current of the motor. Specifically, as the cleaning process proceeds, the dirt on the impeller 3 is gradually removed, and the motor load will decrease accordingly. This is reflected in the motor current as the actual current gradually approaches the initial current. When the actual current is not greater than the initial current, or the difference between the actual current and the initial current is less than or equal to a preset threshold, it can be determined that the impeller 3 has been sufficiently cleaned.

[0062] Specifically, before cleaning begins, the system first records the initial current of the range hood motor when the cleaning structure is uncontaminated. This initial current can be used as a benchmark value for judging the cleaning effect.

[0063] The structure described above for detecting motor current can be, but is not limited to, a Hall effect current sensor.

[0064] For ease of description, let the actual current be C1 and the initial current be C.

[0065] In an optional implementation, after the cleaning actuator completes the n-level cleaning state for the first time: When the detection component first detects that the actual current is greater than the initial current, the controller is configured to control the cleaning actuator to re-enter the n-level cleaning state. When the actual current is detected to be no greater than the initial current for the first time, the controller is configured to control the cleaning actuator to end the cleaning state.

[0066] When the cleaning actuator includes three levels of cleaning status: like Figure 1 As shown, when the above-mentioned cleaning actuator completes the first-level cleaning state for the first time, and the detection component detects for the first time that C1 is greater than C, the controller controls the cleaning actuator to re-enter the first-level cleaning state; when the actual current is detected for the first time not to be greater than the initial current, the controller controls the cleaning actuator to end the cleaning state.

[0067] like Figure 1 As shown, when the above-mentioned cleaning actuator completes the secondary cleaning state for the first time, and the detection component detects that C1 is greater than C for the first time, the controller controls the cleaning actuator to re-enter the secondary cleaning state; when the actual current is detected to be less than the initial current for the first time, the controller controls the cleaning actuator to end the cleaning state.

[0068] In the above implementation, the controller can control whether to restart the cleaning actuator based on the current of the motor, thus avoiding the impact on the performance of the range hood due to poor cleaning results in a single cleaning cycle.

[0069] In an optional implementation, when the detection component detects for the second time that the actual current is greater than the initial current, the controller is configured to control the cleaning actuator to enter the n+m level cleaning state, where m is a positive integer and n+m≤N.

[0070] The above implementation method can dynamically adjust the cleaning process according to the actual cleaning effect, avoiding the problems of over-cleaning or incomplete cleaning, and improving cleaning efficiency and user experience.

[0071] When the cleaning actuator includes three levels of cleaning status: like Figure 1 As shown, when the cleaning actuator completes the first-level cleaning state for the second time because the C1 detected in the first test is greater than C, and the detection component detects that the actual current is greater than the initial current for the second time, it proves that the first-level cleaning state cannot effectively remove the oil stains on the structure to be cleaned. The controller controls the cleaning actuator to enter the second-level cleaning state or even the third-level cleaning state to enhance the cleaning effect on the structure to be cleaned.

[0072] Based on the above process, if the controller controls the cleaning actuator to enter the second-level cleaning state, after the first cleaning is completed, C1 and C are compared again. When the first detected C1 is greater than C, the controller controls the cleaning actuator to enter the second-level cleaning state again. After the cleaning is completed, when the second detected C1 is greater than C, the controller controls the cleaning actuator to enter the third-level cleaning state.

[0073] like Figure 1 As shown, when the cleaning actuator completes the second level of cleaning because the C1 detected in the first test is greater than C, and the detection component detects that the actual current is greater than the initial current, it proves that the second level of cleaning cannot effectively remove the oil stains on the structure to be cleaned. The controller then controls the cleaning actuator to enter the third level of cleaning to enhance the cleaning effect on the structure to be cleaned.

[0074] Specifically, m is preferably 1, so that when the current cleaning state is not good, the controller can control the cleaning actuator to gradually increase the cleaning state, effectively reducing the cleaning cost.

[0075] In an optional implementation, when the cleaning actuator completes the N-level cleaning state for the first time, that is, after completing the highest level of cleaning state for the first time, it indicates that the range hood was severely polluted by kitchen fumes before cleaning, and the controller controls the cleaning actuator to enter the N-level cleaning state multiple times in succession.

[0076] The above multiple times can be two, three, four, etc., with two being the preferred method.

[0077] After each cleaning cycle, the system returns to the oil fume concentration monitoring state, continues to monitor the kitchen oil fume concentration in real time, and performs the automatic rinsing task in a cyclical manner according to the above process.

[0078] After rinsing is completed, the controller can also record information such as the rinsing time and rinsing mode (normal, light or deep) and store it in the storage module for easy querying by users and analysis by the system.

[0079] In addition, the above-mentioned controller can be a PLC controller or a microcontroller controller, etc.

[0080] In an optional implementation, the cleaning actuator further includes a display module configured to display a reference time until the next activation of the cleaning actuator. For example, after a light cleaning cycle, the next rinse is expected after the third cumulative usage time; after a deep cleaning cycle, the next rinse is expected after the fourth cumulative usage time. The fourth time is longer than the third time, and the specific time can be adjusted according to actual conditions.

[0081] The structure of the cleaning actuator is described in detail below: like Figure 3 and Figure 4As shown, the cleaning actuator includes a liquid supply mechanism 1 and a spray pipe assembly 2. The spray pipe assembly 2 includes an inner spray pipe 21 disposed on one side of the impeller 3 and an outer spray pipe 22 disposed on the other side of the impeller. Both the inner spray pipe 21 and the outer spray pipe 22 are connected to the liquid supply mechanism 1.

[0082] During use, the liquid supply mechanism 1 can provide cleaning medium to the spray pipe assembly 2. The outer spray pipe 22 in the spray pipe assembly 2 can spray cleaning medium onto the impeller 3 from one side of the impeller 3, and the inner spray pipe 21 in the spray pipe assembly 2 can spray cleaning medium onto the impeller 3 from the other side of the impeller 3, thereby realizing double-sided cleaning of the impeller 3, effectively removing oil stains from both the inner and outer sides of the impeller 3, making the impeller 3 rotate more smoothly, ensuring the overall performance of the range hood, extending the service life of the range hood, and improving the use effect of the range hood.

[0083] The following section will use the example of the inner spray pipe 21 being located inside the impeller 3 and the outer spray pipe 22 being located outside the impeller 3 for a detailed explanation.

[0084] In alternative implementations, such as Figure 8 As shown, the inner spray pipe 21 and the outer spray pipe 22 are respectively arranged on the same axial section of the impeller 3.

[0085] The above configuration allows the inner spray pipe 21 and the outer spray pipe 22 to simultaneously spray and clean the inner and outer surfaces of the impeller 3 within the same axial section during impeller 3 rotation. That is, the parts of each blade in impeller 3 that are positioned opposite each other can be cleaned at the same time. The outward thrust of the cleaning fluid sprayed from the inner spray pipe 21 on the blade can basically balance the inward thrust of the cleaning fluid sprayed from the outer spray pipe 22 on the blade. This avoids blade vibration, bending, or fatigue damage caused by using a single-sided spraying method or a staggered spraying method on the axial section. It ensures that the impact force of the cleaning fluid will not cause impact damage to the blade, helps maintain the dynamic balance of impeller 3, reduces vibration and noise, and improves the operational stability of the equipment.

[0086] Of course, the inner spray pipe 21 and the outer spray pipe 22 are not limited to being set on the same axial section of the impeller 3, and they can also be set on different axial sections of the impeller 3.

[0087] Specifically, the cleaning medium in the liquid supply mechanism 1 can enter the inner spray pipe 21 and the outer spray pipe 22 through two independent pipes, or through a main pipe. In other words, there is no restriction on whether the inner spray pipe 21 and the outer spray pipe 22 are directly or indirectly connected to the liquid supply mechanism 1.

[0088] In alternative implementations, such as Figure 3 and Figure 4As shown, the spray pipe assembly 2 also includes a liquid supply pipe 23 and a diverting pipe 24; the outer spray pipe 22 is connected to the liquid supply mechanism 1 through the liquid supply pipe 23, and the inner spray pipe 21 is connected to the outer spray pipe 22 through the diverting pipe 24; or, the inner spray pipe 21 is connected to the liquid supply mechanism 1, and the outer spray pipe 22 is connected to the inner spray pipe 21 through the diverting pipe 24.

[0089] Since the outer spray pipe 22 is more convenient to connect to the liquid supply mechanism 1 outside the impeller 3 through the liquid supply pipe 23, in order to simplify the pipeline structure, preferably, the outer spray pipe 22 is connected to the liquid supply mechanism 1 through the liquid supply pipe 23, and the inner spray pipe 21 is connected to the outer spray pipe 22 through the diverting pipe 24.

[0090] During use, the cleaning medium in the liquid supply mechanism 1 preferentially enters the liquid supply pipe 23 and then enters the outer spray pipe 22 through the liquid supply pipe 23. At the same time, the cleaning medium in the liquid supply pipe 23 enters the inner spray pipe 21 through the outer spray pipe 22 and the diverting pipe 24, thereby realizing the transfer of the cleaning medium to the outer spray pipe 22 and the inner spray pipe 21.

[0091] In the above embodiment, by setting up a liquid supply pipe 23 to transfer the cleaning medium in the liquid supply mechanism 1 to the end where spraying is achieved, compared with the outer spray pipe 22 and the inner spray pipe 21 being independently connected to the liquid supply mechanism 1, the pipeline design of the spray pipe group 2 can be more compact and occupy less space.

[0092] In alternative implementations, such as Figure 3 As shown, the outer spray pipe 22, the diverting pipe 24, and the inner spray pipe 21 are connected in sequence in a "U" shape.

[0093] The above embodiment allows the outer spray pipe 22 to extend to the outside of the impeller 3 while the inner spray pipe 21 extends to the inside of the impeller 3. The deflecting pipe 24 can be located outside the impeller 3, serving to connect the outer spray pipe 22 and the inner spray pipe 21.

[0094] Specifically, the outer spray pipe 22 extends in a straight line, and the inner spray pipe 21 also extends in a straight line; the turning pipe 24 is bent into an "L" shape, one end of the turning pipe 24 is connected to the outer spray pipe 22, and the extension direction of this end is parallel to the outer spray pipe 22; the other end of the turning pipe 24 is connected to the inner spray pipe 21, and the extension direction of this end is perpendicular to the inner spray pipe 21.

[0095] In alternative implementations, such as Figure 3 As shown, the inner spray pipe 21 is provided with a plurality of first nozzles 211 along its own axial direction, and each first nozzle 211 can spray the cleaning medium toward the inner side of the impeller 3.

[0096] Specifically, the distribution area of ​​the multiple first nozzles 211 can be aligned with and cover the axial range of the inner side of the blades in the impeller 3, so that the cleaning medium sprayed by the first nozzles 211 can cover the entire axial range of the blades.

[0097] The first nozzle 211 can be configured to be two, three, four, five, six, seven, or more.

[0098] Preferably, the first nozzle 211 can be configured to have six to nine nozzles.

[0099] In an optional embodiment, along the flow direction of the medium inside the inner spray pipe 21, the nozzle diameter of the downstream first nozzle 211 is larger than the nozzle diameter of the upstream first nozzle 211.

[0100] When the cleaning medium first enters the inner spray pipe 21, its velocity and pressure are relatively high. A smaller nozzle can better control the spray intensity in the initial stage, avoiding energy waste or excessive local impact caused by excessive spraying. As the medium flows forward in the inner spray pipe 21, the pressure gradually decreases and the velocity slows down. At this time, using a larger nozzle can increase the flow rate while maintaining a certain spray momentum, realizing the distribution of water volume in the inner spray pipe 21 from near to far, optimizing the energy distribution during the spraying process, and ensuring that the water volume and pressure of each first nozzle 211 are as balanced as possible.

[0101] In alternative implementations, such as Figure 3 As shown, the external spray pipe 22 is provided with a plurality of second nozzles 221 along its own axial direction, and each second nozzle 221 can spray the cleaning medium toward the outside of the impeller 3.

[0102] Specifically, the distribution area of ​​multiple second nozzles 221 can be aligned with and cover the axial range of the outer side of the blades in the impeller 3, so that the cleaning medium sprayed by the second nozzles 221 can cover the entire axial range of the blades.

[0103] The second nozzle 221 can be configured to be two, three, four, five, six, seven, or more.

[0104] Preferably, the second nozzle 221 can be configured to have six to nine nozzles.

[0105] In an optional embodiment, similarly, along the flow direction of the medium inside the outer spray pipe 22, the nozzle diameter of the downstream second nozzle 221 is larger than that of the upstream second nozzle 221. This arrangement ensures that the water volume and pressure of each second nozzle 221 are as comparable as possible.

[0106] Additionally, one end of the external spray pipe 22 is a closed end, and the other end is connected to the diverting pipe 24. The external spray pipe 22 may include two sections: a first section located between the closed end and the liquid supply pipe 23, and a second section located between the liquid supply pipe 23 and the diverting pipe 24. The second nozzles 221 in the external spray pipe 22 may be distributed in the first section.

[0107] The advantage of the above configuration is that when the liquid supply pipe 23 enters the cleaning medium in the outer spray pipe 22, one stream can enter the first section and be sprayed out through each of the second nozzles 221, and the other stream can directly enter the inner spray pipe 21 through the diverting pipe 24. The cleaning medium will not pass through the second nozzles 221 in the path of entering the inner spray pipe 21, ensuring that there is a sufficiently large water pressure at each of the first nozzles 211 on the inner spray pipe 21.

[0108] In alternative implementations, such as Figure 3 As shown, the liquid supply mechanism 1 includes a first liquid supply component 11, a second liquid supply component 12, and a cleaning medium processing component 13. The first liquid supply component 11 and the second liquid supply component 12 are both connected to the inlet of the cleaning medium processing component 13, and the outlet of the cleaning medium processing component 13 is connected to the spray pipe assembly 2.

[0109] In use, both the first liquid supply component 11 and the second liquid supply component 12 can supply cleaning medium to the cleaning medium processing component 13. After the cleaning medium is processed in the cleaning medium processing component 13, it is discharged to the liquid supply pipe 23. Alternatively, the cleaning medium processing component 13 may not process the cleaning medium and directly discharge the cleaning medium to the liquid supply pipe 23.

[0110] In an optional embodiment, both the first liquid supply assembly 11 and the second liquid supply assembly 12 include a first housing 111, a second housing 112 and an inlet pipe 113. The second housing 112 is located below the first housing 111 and is detachably connected to the first housing 111. The second housing 112 has a vent hole, and the inlet pipe 113 connects the second housing 112 and the cleaning medium processing assembly 13.

[0111] During use, the first housing 111 can be detached from the second housing 112, allowing the user to easily fill the first housing 111 with cleaning medium. After filling, the first housing 111 can be inserted into the interface of the second housing 112 for liquid injection. During use, the cleaning medium in the first housing 111 enters the second housing 112, and the gas in the second housing 112 can be discharged through the vent. The liquid inlet pipe 113 can guide the cleaning medium to the cleaning medium treatment component 13.

[0112] There are several ways to achieve a detachable connection between the first box 111 and the second box 112, such as snap-fitting the first box 111 and the second box 112, or threaded connection between the first box 111 and the second box 112.

[0113] In an optional embodiment, the first housing 111 in the first liquid supply assembly 11 and the first housing 111 in the second liquid supply assembly 12 are respectively used to hold different cleaning media, such as water or detergent.

[0114] In the above embodiments, the traditional method of cleaning the impeller 3 using a single cleaning medium is eliminated. By alternating and mixing two cleaning media to clean the impeller 3, the cleaning effect of the impeller 3 can be improved.

[0115] Specifically, both first box bodies 111 have visible sections on their outer walls.

[0116] The above method allows users to observe the remaining state of the cleaning medium in the first box 111 so that it can be replenished in a timely manner.

[0117] In a preferred embodiment, the outer wall of the first box 111 can be made of a transparent material, such as glass or transparent plastic.

[0118] In addition, the first box 111 can be a square box, a round box, etc., and the first box 111 can be set on the upper side of the top plate 4 in the range hood for easy disassembly and assembly. The second box 112 can be an irregularly shaped box, which can be set on the lower side of the top plate 4, located in the inner cavity of the smoke collection hood, and not sharing a cavity with the oil fumes.

[0119] In an optional embodiment, the cleaning medium processing assembly 13 may include a first pump body, a second pump body, and a steam generator; the first pump body is connected between the second housing 112 in the first liquid supply assembly 11 and the steam generator, and pressurizes the cleaning medium discharged from the second housing 112 before discharging it to the steam generator; the second pump body is connected between the second housing 112 in the second liquid supply assembly 12 and the steam generator, and pressurizes the cleaning medium discharged from the second housing 112 before discharging it to the steam generator.

[0120] The steam generator can heat water into hot water or steam. Therefore, one of the first liquid supply assembly 11 and the second liquid supply assembly 12 is used to supply water to the steam generator, while the other can supply cleaning liquid such as detergent to the steam generator.

[0121] The cleaning medium treatment assembly 13 may also include a housing that covers the outside of a pump body, a second pump body and a steam generator. The housing has a first inlet for the inlet pipe 113 of the first liquid supply assembly 11 to enter, a second inlet for the inlet pipe 113 of the second liquid supply assembly 12 to enter, and an outlet for the liquid supply pipe 23 to extend out.

[0122] A second aspect of the present invention provides a self-cleaning range hood, such as... Figures 5 to 8As shown, the self-cleaning range hood provided in the second aspect of the present invention includes an impeller 3, a top plate 4, and the aforementioned impeller spray cleaning device. The outer spray pipe 22 is located on the outer side of the impeller 3, and the inner spray pipe 21 is located on the inner side of the impeller 3. The first box 111 in the liquid supply mechanism 1 is located on the outer side of the top plate 4, and the second box 112 in the liquid supply mechanism 1 is located on the inner side of the top plate 4.

[0123] In the above embodiment, the first box 111 can be located on the outer side of the top plate 4, making it convenient for the user to add cleaning medium into the first box 111 and observe the remaining amount of cleaning medium, thus facilitating user operation. The second box 112 is located on the inner side of the top plate 4, allowing the second box 112 to be hidden inside the range hood and not exposed to the outside, ensuring the aesthetics of the range hood.

[0124] Meanwhile, since the above-mentioned self-cleaning range hood includes the impeller spray cleaning device provided in the first aspect of the present invention, it also has the advantages of good oil stain cleaning effect on the inner and outer sides of the impeller 3 and more stable overall performance.

[0125] In an optional embodiment, the top plate 4 has two openings to connect the first housing 111 on the upper side of the top plate 4 with the second housing 112 on the lower side of the top plate 4. The inner side of the top plate 4 has an elastic sleeve that fits into the two openings, preventing oil, dust and other impurities from entering the second housing 112 when the first housing 111 does not inject cleaning medium into the second housing 112.

[0126] The material of the aforementioned elastic sleeve can be rubber, soft plastic, etc.

[0127] In alternative implementations, such as Figure 8 As shown, the self-cleaning range hood also includes a volute 5 covering the outside of the impeller 3. The volute 5 has a recessed groove 51 facing the impeller 3. The groove 51 has an opening. The external spray pipe 22 extends into the groove 51 and the second nozzle 221 on the external spray pipe 22 passes through the opening.

[0128] During assembly, the outer spray pipe 22 can extend into the groove 51 from the outside of the volute 5, and the second nozzle 221 on the outer spray pipe 22 extends into the volute 5 through the opening and is aligned with the outside of the impeller 3.

[0129] The groove 51 provided above allows the outer spray pipe 22 to get closer to the impeller 3 along the radial direction of the impeller 3, resulting in a better cleaning effect on the outside of the impeller 3 when the spray pressure of the second nozzle 221 is constant.

[0130] In an optional embodiment, there is an angle between the orientation of the opening and the direction of oil splashing at the opening of the opening.

[0131] The purpose of the above settings is to prevent the oil spilled out by the impeller 3 from directly entering the opening through the opening of the hole when the impeller 3 is working, and to facilitate the separation of the second nozzle 221 from the volute 5 during disassembly.

[0132] Preferably, the opening is oriented perpendicular to the direction of oil splashing at its opening, which more effectively prevents oil from entering the opening.

[0133] Similarly, the orientation of the second nozzle 221 is at an angle to the direction of the oil splash at its own nozzle, so as to prevent the oil splashed out by the impeller 3 from directly entering the second nozzle 221, clogging the second nozzle 221, and extending the cleaning cycle of the second nozzle 221.

[0134] Preferably, the orientation of the second nozzle 221 is perpendicular to the splashing direction of the oil at its own nozzle, which more effectively prevents oil from entering the second nozzle 221.

[0135] According to the cleaning actuators mentioned in the above embodiments, when the cleaning actuator is in a routine maintenance and cleaning state, the water pump in the cleaning actuator heats the water to 70-80°C through the steam generator, and then rinses the inside and outside of the impeller 3 with hot water for 15 seconds through the first nozzle 211 and the second nozzle 221. The nozzles rinse the inside and outside of the impeller 3 at a specific angle and pressure. Then, the water pump heats the water to 70-80°C through the steam generator and mixes it with the cleaning agent from the liquid pump. The mixture is then output from the steam generator outlet. The mixture is then cleaned by passing the first nozzle 211 and the second nozzle 221 to remove dirt from the inside and outside of the impeller for 30 seconds. The cleaning solution is stopped for 30 seconds to allow the cleaning solution to fully dissolve the oil. Then, it is rinsed with cold water for 15 seconds and then spun dry for 30 seconds in high power mode.

[0136] When the cleaning actuator is in a light cleaning state, the water pump in the cleaning actuator heats the water to 70-80℃ through the steam generator, and then rinses the inside and outside of the impeller 3 with hot water for 15 seconds through the first nozzle 211 and the second nozzle 221. Then the steam generator is increased to 110℃ to heat the hot water into steam for steam softening and rinsing the oil stains for 15 seconds. Then the water pump heats the water to 70-80℃ through the steam generator and mixes it with the cleaning agent from the liquid pump. The mixture is then output from the steam generator outlet. The mixture is then cleaned by passing the first nozzle 211 and the second nozzle 221 to remove dirt from the inside and outside of the impeller 3 for 30 seconds. The cleaning is stopped for 30 seconds to allow the cleaning solution to fully dissolve the oil stains. Then it is rinsed with cold water for 30 seconds. Finally, it is run on high speed for 30 seconds to spin dry.

[0137] When the cleaning actuator is in deep cleaning mode, the water pump in the cleaning actuator heats the water to 70-80℃ through the steam generator, and then rinses the inside and outside of the impeller 3 with hot water for 15 seconds through the first nozzle 211 and the second nozzle 221. Then the steam generator is increased to 110℃ to heat the hot water into steam and rinse the dirt with steam for 30 seconds. Then the water pump heats the water to 70-80℃ through the steam generator and mixes it with the cleaning agent from the liquid pump. The mixture is then output from the steam generator outlet. The mixture is then cleaned by passing the first nozzle 211 and the second nozzle 221 to remove dirt from the inside and outside of the impeller 3 for 30 seconds. It is stopped for 30 seconds to allow the cleaning solution to fully dissolve the oil. Then it is rinsed with cold water for 30 seconds. Then it is run on high speed to spin dry for 30 seconds. This cycle is repeated twice.

[0138] Of course, the above is an explanation of the automatic cleaning mode of the cleaning control system. The cleaning control system has control buttons or a control panel. Users can turn off the automatic cleaning mode by using the control buttons or the control panel. At this time, the range hood will only light up to remind users to clean. Users can also manually turn on the cleaning mode in the automatic cleaning mode.

[0139] After the user manually activates the cleaning mode, the oil fume concentration is detected first, and then the cleaning control system activates the corresponding cleaning state according to the above process.

[0140] A second aspect of the present invention provides a cleaning control method, which applies the above-described cleaning control system and includes: The detection component detects the first and second operating information of the range hood. The storage module stores at least the first preset information and the second preset information; The controller compares the first working information with the first preset information and controls the cleaning actuator to enter the corresponding cleaning state. After the cleaning actuator completes the n-level cleaning state for the first time, the controller compares the second working information and the second preset information, and controls the cleaning actuator to end the cleaning state, re-enter the n-level cleaning state, or enter another level of cleaning state, where n < N.

[0141] The cleaning control method provided by the second aspect of the present invention is based on real-time collected range hood operating data, automatically determines whether cleaning is required, avoids errors in manual judgment, and can automatically match the cleaning level according to different cleaning needs, improve cleaning efficiency, extend the service life of the range hood, and re-evaluate the cleaning effect after cleaning, dynamically adjust the subsequent cleaning strategy to ensure thorough cleaning and facilitate user use.

[0142] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cleaning control system, characterized in that, It includes a detection component, a controller, a storage module, and a cleaning actuator, wherein the detection component, the storage module, and the cleaning actuator are all connected to the controller; The detection component is configured to detect the first and second operating information of the range hood; The storage module is configured to store at least first preset information and second preset information, and the cleaning actuator has N levels of cleaning states where the cleaning capability increases with the level, where N is a positive integer; The controller is configured to compare the first working information and the first preset information, and control the cleaning actuator to enter the corresponding cleaning state; the controller is also configured to compare the second working information and the second preset information after the cleaning actuator completes the n-level cleaning state for the first time, and control the cleaning actuator to end the cleaning state, re-enter the n-level cleaning state, or enter another level cleaning state, where n < N.

2. The cleaning control system according to claim 1, characterized in that, The second operating information includes the actual current of the motor, and the second preset information includes the initial current of the range hood. This information is provided after the cleaning actuator completes the n-level cleaning state for the first time. When the detection component first detects that the actual current is greater than the initial current, the controller is configured to control the cleaning actuator to re-enter the n-level cleaning state. When the actual current is detected to be no greater than the initial current for the first time, the controller is configured to control the cleaning actuator to end the cleaning state.

3. The cleaning control system according to claim 2, characterized in that, When the detection component detects for the second time that the actual current is greater than the initial current, the controller is configured to control the cleaning actuator to enter the n+m level cleaning state, where m is a positive integer and n+m≤N.

4. The cleaning control system according to any one of claims 1-3, characterized in that, Once the cleaning actuator completes the N-level cleaning state for the first time, the controller is configured to control the cleaning actuator to enter the N-level cleaning state multiple times consecutively.

5. The cleaning control system according to any one of claims 1-3, characterized in that, The first working information includes the actual concentration of oil fumes and the actual running time of the range hood; the first preset information includes the set concentration of oil fumes and the set running time of the range hood. The controller is configured to compare the actual concentration of the oil fume with the set concentration of the oil fume, and to compare the actual running time of the range hood with the set running time of the range hood to control the cleaning actuator to enter the corresponding cleaning state.

6. The cleaning control system according to claim 5, characterized in that, The set concentration of oil fume includes a first threshold and a second threshold, wherein the oil fume concentration corresponding to the first threshold is less than the oil fume concentration corresponding to the second threshold; the set operating time of the range hood includes a first time and a second time, wherein the duration of the first time is less than the duration of the second time.

7. The cleaning control system according to claim 6, characterized in that, When the actual concentration of the oil fume is less than the first threshold: When the actual running time of the range hood is greater than the first time, the controller is configured to control the cleaning actuator to enter the first-level maintenance state; When the actual running time of the range hood is less than the first time, the controller is configured to not operate.

8. The cleaning control system according to claim 6, characterized in that, When the actual concentration of the oil fume is greater than the first threshold and less than the second threshold: When the actual running time of the range hood is greater than the second time, the controller is configured to control the cleaning actuator to enter the secondary cleaning state; When the actual running time of the range hood is less than the second time, the controller is configured to not operate.

9. The cleaning control system according to claim 6, characterized in that, When the actual concentration of the oil fume is greater than the second threshold, the controller is configured to control the cleaning actuator to enter the third-level cleaning state.

10. The cleaning control system according to any one of claims 1-3, characterized in that, The cleaning actuator also includes a display module configured to display a reference time until the next start of the cleaning actuator.

11. A cleaning control method using the cleaning control system according to any one of claims 1-10, characterized in that, include: The detection component detects the first operating information and the second operating information of the range hood; The storage module stores at least the first preset information and the second preset information; The controller compares the first working information and the first preset information and controls the cleaning actuator to enter the corresponding cleaning state. After the cleaning actuator completes the n-level cleaning state for the first time, the controller compares the second working information and the second preset information, and controls the cleaning actuator to end the cleaning state, re-enter the n-level cleaning state, or enter another level of cleaning state, where n < N.

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