Particle detection module, cleaning equipment and cleaning method

Abstract

The invention provides a particle detection module, cleaning equipment and a cleaning method. The particle detection module comprises a mounting body, a sensor and a control module. And the sensor is mounted on the mounting body. The sensor is used for receiving an external vibration signal and distinguishing a target vibration signal according to the frequency of the external vibration signal. The control module is installed on the installation body and is in communication connection with the sensor and the cleaning body. The control module is used for adjusting the suction mode of the cleaning body according to the frequency of the target vibration signal. The particle detection module can judge the mass size of the particles according to the frequency of the target vibration signal and adjust the suction mode of the cleaning main body according to the mass size of the particles, so that the cleaning main body can be automatically adjusted to the corresponding suction mode according to the mass of the particles to be cleaned; it is guaranteed that the cleaning body effectively cleans particulate matter, meanwhile, energy consumption optimization is achieved, and lasting operation is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a particle detection module, a cleaning device and a cleaning method. Background Art

[0002] Existing cleaning equipment usually maintains a suction mode when facing objects of different particle sizes. In order to ensure a certain cleaning force, it usually maintains the maximum suction mode, which also leads to poor endurance of the sweeper. Other cleaning instruments, such as vacuum cleaners, also rely on people to actively adjust the suction mode and cannot switch autonomously. Therefore, the demand for intelligent cleaning mode switching based on the size of the particles being cleaned is becoming increasingly strong. Summary of the invention

[0003] Based on this, it is necessary to provide a particle detection module, cleaning equipment and cleaning method to address the problems in the prior art that the cleaning equipment has poor endurance and cannot intelligently switch the cleaning mode according to the required cleaning particle size.

[0004] The technical solution is as follows:

[0005] In a first aspect, a particle detection module is provided, which is applied to a cleaning device, wherein the cleaning device comprises a cleaning body provided with an air inlet duct, the particle detection module is installed on an outer wall of the air inlet duct, and comprises:

[0006] Install the body;

[0007] A sensor is mounted on the mounting body, and is used to receive an external vibration signal and distinguish a target vibration signal according to the frequency of the external vibration signal;

[0008] A control module is installed on the installation body and is in communication connection with the sensor and the cleaning body. The control module is used to adjust the suction mode of the cleaning body according to the frequency of the target vibration signal.

[0009] The technical solution is further described below:

[0010] In one of the embodiments, the particle detection module further includes a coupling component, which is mounted on the sensor and is used to couple the external vibration signal on the air inlet duct to the sensor.

[0011] In one embodiment, end surfaces at both ends of the mounting body are respectively provided with a first mounting groove and a second mounting groove, the sensor is installed in the groove of the first mounting groove, the bottom wall of the second mounting groove is provided with a mounting hole connected to the first mounting groove, and the control module includes a circuit board provided with a connecting part, and the connecting part is configured to pass through the mounting hole and communicate with the sensor when the circuit board is installed in the second mounting groove.

[0012] In one of the embodiments, a limiting portion is provided on an inner side wall of the second mounting slot, and the limiting portion cooperates with the circuit board to limit the position of the circuit board in the second mounting slot.

[0013] In a second aspect, a cleaning device is provided, comprising a cleaning body and the particle detection module.

[0014] In one of the embodiments, the cleaning device further comprises a fixing member, and the fixing member is used to fix the particle detection module on the outer wall of the air inlet duct.

[0015] A third aspect provides a cleaning method, comprising:

[0016] The cleaning body draws particles into the air inlet duct;

[0017] The particle detection module installed on the air inlet duct receives the external vibration signal and distinguishes the target vibration signal according to the frequency of the external vibration signal;

[0018] The suction mode of the cleaning body is adjusted according to the frequency of the target vibration signal.

[0019] In one embodiment, the step of receiving an external vibration signal by the particle detection module installed on the air inlet duct and distinguishing a target vibration signal according to the frequency of the external vibration signal includes:

[0020] The particle detection module installed on the outer wall of the air inlet duct receives an external vibration signal and distinguishes a target vibration signal whose frequency is greater than a first preset value and less than a second preset value according to the frequency of the external vibration signal, wherein the first preset value is less than the second preset value.

[0021] In one embodiment, the step of adjusting the suction mode of the cleaning body according to the frequency of the target vibration signal includes:

[0022] The mass of the particles is determined according to the frequency of the target vibration signal, and the suction mode of the cleaning body is adjusted according to the mass of the particles.

[0023] In one embodiment, the step of determining the mass of the particles according to the frequency of the target vibration signal and adjusting the suction mode of the cleaning body according to the mass of the particles includes:

[0024] When the frequency of the target vibration signal is greater than a first preset value and less than or equal to a third preset value, the mass of the particles is greater than or equal to the first preset mass, and the cleaning body is adjusted to a first suction mode;

[0025] When the frequency of the target vibration signal is greater than the third preset value and less than the fourth preset value, the mass of the particles is greater than the second preset mass and less than the first preset mass, and the cleaning body is adjusted to the second suction mode;

[0026] When the frequency of the target vibration signal is greater than or equal to the fourth preset value and less than the second preset value, the mass of the particles is less than or equal to the second preset mass, and the cleaning body is adjusted to the third suction mode;

[0027] Among them, the first preset value, the third preset value, the fourth preset value, and the second preset value increase sequentially, the first preset mass is greater than the second preset mass, and the suction of the first suction mode, the suction of the second suction mode, and the suction of the third suction mode decrease sequentially.

[0028] Compared with the cleaning equipment in the prior art, the particle detection module, cleaning equipment and cleaning method in the present application have at least the following advantages: 1. The particle detection module can judge the mass of the particles according to the frequency of the target vibration signal, and adjust the suction mode of the cleaning body according to the mass of the particles, so that the cleaning body can automatically adjust to the corresponding suction mode according to the mass of the particles to be cleaned, ensuring that the cleaning body can effectively clean the particles while optimizing energy consumption and achieving long-term operation. 2. By utilizing the characteristic differences of the vibration signals generated by particles of different masses hitting the inner wall of the air inlet duct, a higher resolution is achieved, and fine particles can also be sensed, thereby improving the cleaning ability of the cleaning equipment. 3. The particle detection module is located on the outside of the air inlet duct and is not in direct contact with the particles. The particle detection module does not have the risk of being contaminated by particles or damaged by particles, thereby improving the reliability of the cleaning equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application.

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 A schematic diagram of the partial structure of a cleaning device according to an embodiment.

[0032] Figure 2 A schematic diagram of the structure of a particle detection module according to an embodiment.

[0033] Figure 3 for Figure 2 Exploded view of the particle detection module.

[0034] Figure 4 A flow chart of a cleaning method according to an embodiment.

[0035] Figure 5 This is a spectrum diagram of a cleaning device according to an embodiment when cleaning medium-sized rice particles.

[0036] Figure 6 This is a spectrum diagram of a cleaning device according to an embodiment when cleaning large particles such as red beans.

[0037] Description of reference numerals:

[0038] 10. Particle detection module; 100. Installation body; 200. Sensor; 300. Control module; 400. Coupling piece; 500. Potting glue; 600. Terminal wire; 20. Air inlet duct; 30. Fixing piece. DETAILED DESCRIPTION

[0039] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0040] In response to the problem of poor battery life of cleaning equipment in the prior art, the inventors conducted research and analysis and found that the following problems still exist: 1. The detection module in the prior art can only identify whether there are particles in the air inlet duct, and cannot adjust and switch the suction mode. In addition, the detection resolution of the detection module is low and cannot identify tiny particles such as fine salt, resulting in the cleaning equipment being unable to switch to the appropriate cleaning mode, and often leading to the dilemma of incomplete cleaning. 2. The overall structure of the detection module is large, and the existing cleaning equipment is cramped, making it difficult to free up more installation space. 3. The force-bearing surface of the detection module is in direct contact with particles, and there is a risk of contamination and damage by particles, or even loss of performance.

[0041] Based on the above problems, the inventors have designed and proposed the particle detection module 10, cleaning equipment and cleaning method of the following embodiments of the present application to solve the above technical problems.

[0042] like Figure 1 As shown, in one embodiment, a cleaning device includes a cleaning body provided with an air inlet duct 20 and a particle detection module 10. The particle detection module 10 is installed on the outer wall of the air inlet duct 20 and is connected to the cleaning body for communication. In this way, the particle detection module 10 is located outside the air inlet duct 20 and does not directly contact the particles. The particle detection module 10 does not have the risk of being contaminated by particles or being damaged by particles, thereby improving the reliability of the cleaning device.

[0043] The cleaning body can be configured as any cleaning structure in the prior art that is provided with an air inlet duct 20. In other embodiments, the particle detection module 10 can also be installed on the inner wall of the air inlet duct 20.

[0044] Specifically in this embodiment, the air inlet duct 20 includes an air inlet section, a bending section and an air outlet section connected in sequence. The bending section is provided with an impact position corresponding to the air inlet section, that is, the position on the bending section that is impacted by the airflow flowing out of the air inlet section is set as the impact position. The particle detection module 10 is installed correspondingly at the impact position.

[0045] like Figure 1 As shown, optionally, the cleaning device further includes a fixing member 30, which is used to fix the particle detection module 10 on the outer wall of the air inlet duct 20. In this way, it is ensured that the particles hit the inner wall of the air inlet duct 20 and generate a target vibration signal that can be stably and reliably transmitted to the particle detection module 10, ensuring that the particle detection module 10 can accurately determine the mass of the particles, thereby improving the reliability of the cleaning device.

[0046] The fixing member 30 may be configured as a fixing clamp, a fixing buckle or other fixing structures. Specifically in this embodiment, the fixing member 30 is configured as a foolproof buckle.

[0047] like Figure 2and Figure 3 As shown, in one embodiment, a particle detection module 10 is provided, including a mounting body 100, a sensor 200 and a control module 300. Among them, the sensor 200 is mounted on the mounting body 100. The sensor 200 is used to receive an external vibration signal and distinguish a target vibration signal according to the frequency of the external vibration signal. The control module 300 is mounted on the mounting body 100 and is communicatively connected with the sensor 200 and the cleaning body. The control module 300 is used to adjust the suction mode of the cleaning body according to the frequency of the target vibration signal.

[0048] When the particle detection module 10 in the above embodiment is used, the particle detection module 10 is installed on the outer wall of the air inlet duct 20 of the cleaning body, so that the target vibration signal generated by the particles hitting the inner wall of the air inlet duct 20 can be transmitted to the sensor 200. When the cleaning body performs the cleaning operation, first, the particles are accelerated by the airflow, and the accelerated particles hit the inner wall of the air inlet duct 20 and generate a target vibration signal, which is transmitted to the sensor 200 through the air inlet duct 20. Then, the sensor 200 receives the external vibration signal and distinguishes the target vibration signal from the external vibration signal. Finally, the control module 300 determines the mass of the particles according to the frequency of the target vibration signal, and then adjusts the suction mode of the cleaning body according to the mass of the particles, that is, the cleaning body can automatically adjust to the corresponding suction mode according to the mass of the particles to be cleaned, ensuring that the cleaning body effectively cleans the particles while also optimizing energy consumption and achieving long-term operation. In addition, the present application utilizes the characteristic differences of vibration signals generated by particles of different masses impacting the inner wall of the air inlet duct 20 to achieve higher resolution, and fine particles can also be sensed, thereby improving the cleaning ability of the cleaning equipment.

[0049] It should be noted that the external vibration signal includes not only the target vibration signal, but also the internal vibration signal generated by the vibration of the air inlet duct 20 itself. Usually, the frequency of the internal vibration signal will be smaller than the frequency of the target vibration signal. Filtering the internal vibration signal can improve the resolution of particle detection to a certain extent and avoid some particles not being detected due to interference. At the same time, after the internal vibration signal is distinguished and discarded, other misjudgments will not be introduced when distinguishing between particles of different masses, and higher resolution and more accurate detection can be achieved. In addition, the vibration of the cleaning body will also generate external vibration signals, which will be directly filtered out and will not be transmitted to the particle detection module 10.

[0050] It should be noted that the smaller the frequency of the target vibration signal, the greater the mass of the particles; the larger the frequency of the target vibration signal, the smaller the mass of the particles. The control module 300 can directly adjust the suction mode of the cleaning body according to the frequency of the target signal vibration.

[0051] Specifically in this embodiment, under the premise of ensuring a certain sensitivity, a connected ceramic sheet is selected; a metal copper sheet is used as a matching layer to ensure a certain strength. The edge-connected ceramic sheet is bonded to the metal copper sheet by epoxy glue to form a sensor 200.

[0052] like Figure 2 and Figure 3 As shown, optionally, the particle detection module 10 further includes a coupling member 400, which is mounted on the sensor 200 and is used to couple the external vibration signal to the sensor 200. In this way, the sensor 200 is attached to the outer wall of the air inlet duct 20 through the coupling member 400, ensuring that the external vibration signal on the air inlet duct 20 can be stably and reliably transmitted to the sensor 200 through the coupling member 400, thereby improving the reliability of the particle detection module 10.

[0053] Specifically in this embodiment, the coupling member 400 can be configured as an adhesive sticker, so that the particle detection module 10 can be adhered to the outer wall of the air inlet duct 20 by the adhesive sticker.

[0054] In one embodiment, the end faces at both ends of the mounting body 100 are respectively provided with a first mounting groove and a second mounting groove. The sensor 200 is mounted in the notch of the first mounting groove. The bottom wall of the second mounting groove is provided with a mounting hole connected to the first mounting groove. The control module 300 includes a circuit board provided with a connecting portion. The connecting portion is configured to pass through the mounting hole and communicate with the sensor 200 when the circuit board is installed in the second mounting groove. In this way, the overall size of the particle detection module 10 is small and can be adapted to most cleaning equipment, solving the dilemma of insufficient space and difficult installation on the user side. In addition, the connecting portion passes through the mounting hole and extends into the first mounting groove, which facilitates the welding of the connecting portion and the connecting wire on the sensor 200, thereby improving the practicality of the particle detection module 10.

[0055] Optionally, the inner side wall of the mounting hole is provided with a guide surface, and the guide surface is used to guide and cooperate with the connecting portion. In this way, the guide surface can guide the connecting portion, making it easier to install the circuit board into the housing. Specifically in this embodiment, along the direction from the second mounting groove toward the first mounting groove, the inner diameter of the mounting hole gradually decreases, so that the inner side wall of the mounting hole is set as the guide surface.

[0056] Specifically in this embodiment, the particle detection module 10 further includes a potting glue 500 and a terminal wire 600. The potting glue 500 is installed in the notch of the second mounting groove to close the second mounting groove. One end of the terminal wire 600 passes through the potting glue 500 and is electrically connected to the circuit board, and the other end is used to be electrically connected to the cleaning body.

[0057] Furthermore, a limiting portion is provided on the inner side wall of the second mounting groove, and the limiting portion cooperates with the circuit board to limit the position of the circuit board in the second mounting groove. In this way, the position of the circuit board in the mounting body 100 is limited by the limiting portion, the stability and reliability of the welding between the connecting portion and the sensor 200 are ensured, and the reliability of the particle detection module 10 is improved.

[0058] The number of the limiting parts can be flexibly adjusted according to the actual use requirements. Specifically in this embodiment, the two opposite inner side walls of the second installation slot are each provided with a limiting part. The two limiting parts are respectively matched with the corresponding limiting parts of the opposite two sides of the circuit board.

[0059] Optionally, the limiting portion is configured as a limiting guide groove, and the limiting guide groove extends along the groove depth direction of the second installation groove. In this way, the interior of the installation body 100 is designed as a plug-in welding structure, which facilitates the assembly and disassembly of the particle detection module 10 .

[0060] Specifically in this embodiment, the inner wall of the second installation groove is provided with a first guide rib and a second guide rib arranged at intervals, and the first guide rib, the second guide rib, and the inner side wall portion of the second installation groove located between the first guide rib and the second guide rib are surrounded to form a limiting guide groove.

[0061] like Figure 4 As shown, in one embodiment, a cleaning method is provided, comprising at least the following steps:

[0062] S100: The cleaning body sucks particles into the air inlet duct 20. In this way, the particles sucked into the air inlet duct 20 will hit the inner wall of the air inlet duct 20 and generate a target vibration signal.

[0063] S200, the particle detection module 10 installed on the air inlet duct 20 receives the external vibration signal, and distinguishes the target vibration signal according to the frequency of the external vibration signal. In this way, by distinguishing and filtering out the external vibration signal except the target vibration signal, the resolution of particle detection can be improved to a certain extent, avoiding that some particles cannot be detected due to interference, and when distinguishing different masses of particles, other misjudgments will not be introduced, and higher resolution and more accurate detection can be achieved.

[0064] Specifically in this embodiment, the external vibration signal is transmitted to the sensor 200 in the form of a stress wave and is received by the sensor 200. The external vibration signal is converted into an electrical signal and the signal characteristics are decomposed, including phase, frequency, and amplitude.

[0065] Optionally, S210, the particle detection module 10 installed on the outer wall of the air inlet duct 20 receives an external vibration signal, and distinguishes a target vibration signal whose frequency is greater than a first preset value and less than a second preset value according to the frequency of the external vibration signal, wherein the first preset value is less than the second preset value.

[0066] The values ​​of the first preset value and the second preset value can be flexibly adjusted according to actual conditions, as long as they can filter out interfering vibration signals such as internal vibration signals. Specifically in this embodiment, the first preset value can be set to 1KHz; the second preset value can be set to 20KHz.

[0067] S300, adjusting the suction mode of the cleaning body according to the frequency of the target vibration signal. In this way, the cleaning body can be controlled by the particle detection module 10 and automatically adjusted to the corresponding suction mode, ensuring that the cleaning body can effectively clean the particles while also optimizing energy consumption and achieving long-term operation.

[0068] Further, S310, the mass of the particles is determined according to the frequency of the target vibration signal, and then the suction mode of the cleaning body is adjusted according to the mass of the particles.

[0069] It should be noted that the present application uses the method of determining the mass of the particle according to the frequency of the target vibration signal as an example for explanation. In other embodiments, the mass of the particle can also be determined according to at least one of the frequency, amplitude and phase of the target vibration signal.

[0070] like Figure 5 and Figure 6 As shown, in this embodiment, the target vibration signal characteristics obtained by differentiation are used to make a spectrum diagram. The horizontal axis of the spectrum diagram is frequency, and the vertical axis is energy. In this way, the mass of the particles can be judged by the energy distribution, and the mass of the particles can be judged by the area of ​​the vertical axis height distribution (the smaller the mass of the particles, the larger the area of ​​the energy protrusion).

[0071] Optionally, S311, the cleaning body is provided with three suction modes, namely, a first suction mode, a second suction mode and a third suction mode. The suction of the first suction mode, the suction of the second suction mode and the suction of the third suction mode decrease in sequence.

[0072] When the frequency of the target vibration signal is greater than the first preset value and less than or equal to the third preset value, the mass of the particles is greater than or equal to the first preset mass, and the cleaning body is adjusted to the first suction mode;

[0073] When the frequency of the target vibration signal is greater than the third preset value and less than the fourth preset value, the mass of the particles is greater than the second preset mass and less than the first preset mass, and the cleaning body is adjusted to the second suction mode;

[0074] When the frequency of the target vibration signal is greater than or equal to the fourth preset value and less than the second preset value, the mass of the particulate matter is less than or equal to the second preset mass, and the cleaning body is adjusted to the third suction mode.

[0075] The first preset value, the third preset value, the fourth preset value, and the second preset value increase in sequence. The first preset mass is greater than the second preset mass.

[0076] It should be noted that the number of mass classifications of the particles can be flexibly adjusted according to the number of suction modes of the cleaning body, that is, the number of mass classifications of the particles is the same as the number of suction modes and is set one-to-one.

[0077] The third preset value and the fourth preset value can be flexibly adjusted according to the actual use requirements. The second preset quality and the first preset quality can be flexibly adjusted according to the actual use requirements.

[0078] Specifically in this embodiment, the third preset value can be set to 10KHz; the fourth preset value can be set to 15KHz. The first preset mass can be set to 0.30g; and the second preset mass can be set to 0.15g.

[0079] When the frequency of the target vibration signal is greater than 1 KHz and less than or equal to 10 KHz, the mass of the particles is greater than or equal to 0.30 g (ie, the particles are large particles), and the cleaning body is adjusted to the first suction mode.

[0080] When the frequency of the target vibration signal is greater than 10KHz and less than 15KHz, the mass of the particles is greater than 0.15g and less than 0.3g (ie, the particles are medium-sized particles), the cleaning body is adjusted to the second suction mode.

[0081] When the frequency of the target vibration signal is greater than or equal to 15 KHz and less than 20 KHz, the mass of the particles is less than or equal to 0.15 g (ie, the particles are small particles), and the cleaning body is adjusted to the third suction mode.

[0082] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0083] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0084] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0085] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0086] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0087] It should also be understood that when explaining the connection relationship or positional relationship of elements, although not explicitly described, the connection relationship and positional relationship are interpreted as including an error range, which should be within the acceptable deviation range of a specific value determined by those skilled in the art. For example, "approximately", "approximately" or "substantially" may mean within one or more standard deviations, which are not limited here.

[0088] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0089] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A particle detection module, applied to a cleaning device, wherein the cleaning device comprises a cleaning body provided with an air inlet duct, characterized in that: The particle detection module is installed on the outer wall of the air inlet duct and includes: Install the body; A sensor is mounted on the mounting body, and is used to receive an external vibration signal and distinguish a target vibration signal according to the frequency of the external vibration signal; A control module is installed on the installation body and is in communication connection with the sensor and the cleaning body. The control module is used to adjust the suction mode of the cleaning body according to the frequency of the target vibration signal.

2. The particle detection module according to claim 1, characterized in that: The particle detection module also includes a coupling component, which is installed on the sensor and is used to couple the external vibration signal on the air inlet duct to the sensor.

3. The particle detection module according to claim 1 or 2, characterized in that: The end surfaces at both ends of the mounting body are respectively provided with a first mounting groove and a second mounting groove, the sensor is installed in the groove of the first mounting groove, the bottom wall of the second mounting groove is provided with a mounting hole connected with the first mounting groove, and the control module includes a circuit board provided with a connecting part, and the connecting part is configured to pass through the mounting hole and communicate with the sensor when the circuit board is installed in the second mounting groove.

4. The particle detection module according to claim 3, characterized in that: The inner side wall of the second installation slot is provided with a limiting portion, and the limiting portion cooperates with the circuit board to limit the position of the circuit board in the second installation slot.

5. A cleaning device, characterized in that: It comprises a cleaning body and a particle detection module as described in any one of claims 1 to 4.

6. The cleaning device according to claim 5, characterized in that The cleaning device also includes a fixing member, which is used to fix the particle detection module on the outer wall of the air inlet duct.

7. A cleaning method, characterized in that: include: The cleaning body draws particles into the air inlet duct; The particle detection module installed on the air inlet duct receives the external vibration signal and distinguishes the target vibration signal according to the frequency of the external vibration signal; The suction mode of the cleaning body is adjusted according to the frequency of the target vibration signal.

8. The cleaning method according to claim 7, characterized in that: The step of receiving an external vibration signal by the particle detection module installed on the air inlet duct and distinguishing a target vibration signal according to the frequency of the external vibration signal includes: The particle detection module installed on the outer wall of the air inlet duct receives an external vibration signal and distinguishes a target vibration signal whose frequency is greater than a first preset value and less than a second preset value according to the frequency of the external vibration signal, wherein the first preset value is less than the second preset value.

9. The cleaning method according to claim 7, characterized in that: The step of adjusting the suction mode of the cleaning body according to the frequency of the target vibration signal includes: The mass of the particles is determined according to the frequency of the target vibration signal, and the suction mode of the cleaning body is adjusted according to the mass of the particles.

10. The cleaning method according to claim 9, characterized in that: The step of judging the mass of the particles according to the frequency of the target vibration signal and adjusting the suction mode of the cleaning body according to the mass of the particles includes: When the frequency of the target vibration signal is greater than a first preset value and less than or equal to a third preset value, the mass of the particles is greater than or equal to the first preset mass, and the cleaning body is adjusted to a first suction mode; When the frequency of the target vibration signal is greater than the third preset value and less than the fourth preset value, the mass of the particles is greater than the second preset mass and less than the first preset mass, and the cleaning body is adjusted to the second suction mode; When the frequency of the target vibration signal is greater than or equal to the fourth preset value and less than the second preset value, the mass of the particles is less than or equal to the second preset mass, and the cleaning body is adjusted to the third suction mode; Among them, the first preset value, the third preset value, the fourth preset value, and the second preset value increase sequentially, the first preset mass is greater than the second preset mass, and the suction of the first suction mode, the suction of the second suction mode, and the suction of the third suction mode decrease sequentially.

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