Detection Method and Detection System for Vibration-based Self-cleaning Device, and Air Conditioner

Abstract

The present invention relates to a detection method, a detection system and an air conditioner based on a vibration self-cleaning device. The vibration self-cleaning device includes a brush member for cleaning a target to be cleaned and a vibration member connected to the brush member to controllably drive the brush member to vibrate. The detection method of the present invention includes: when the vibration self-cleaning device is in a working state of cleaning the target to be cleaned, obtaining the pressure values of the brush member acting on each target area in contact with the brush member of the target to be cleaned through a thin film pressure sensor; and judging whether the target to be cleaned is damaged according to the pressure values of the brush member acting on each target area. The present application automatically and indirectly detects whether the target to be cleaned is damaged through the pressure values of the brush member acting on each target area of the target to be cleaned obtained by the thin film pressure sensor, breaking through the traditional ideological understanding in the prior art that only the target to be cleaned itself can be directly detected to judge its quality. The design idea is novel and the structure is simple.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and particularly to a detection method, a detection system, and an air conditioner based on a vibration self-cleaning device. Background Art

[0002] After a household air conditioner has been used for a long time or has not been used for a long time, dust, dirt, and various molds and other pollutants will be generated on the inner filter net. When the air conditioner operates in this state, it will affect the refrigeration and heating effects. More importantly, it will endanger people's physical health. For this reason, many devices for cleaning the filter net have been designed in the prior art. However, when the filter net is used and cleaned for a long time, it is prone to breakage, thus affecting its filtering effect. However, for users, they cannot directly know whether the filter net is damaged. To check whether the filter net is damaged, they can only check it manually by looking or touching, which is time-consuming and laborious. Especially for the indoor unit of a wall-mounted air conditioner, the hanging height is relatively high, and the detection difficulty is even higher, seriously affecting the user experience. Summary of the Invention

[0003] An object of a first aspect of the present invention is to overcome at least one defect of the prior art and provide a detection method based on a vibration self-cleaning device that can automatically detect whether a target to be cleaned is damaged.

[0004] A further object of a first aspect of the present invention is to improve the accuracy of the detection result.

[0005] An object of a second aspect of the present invention is to provide a detection system based on a vibration self-cleaning device that can automatically detect whether a target to be cleaned is damaged.

[0006] An object of a third aspect of the present invention is to provide an air conditioner having a detection system that can automatically detect whether a filter net is damaged.

[0007] According to a first aspect of the present invention, the present invention provides a detection method based on a vibration self-cleaning device for detecting whether a target to be cleaned is damaged. The vibration self-cleaning device includes a brush member for cleaning the target to be cleaned and a vibration member connected to the brush member to controllably drive the brush member to vibrate. The detection method includes:

[0008] When the vibration self-cleaning device is in a working state of cleaning the target to be cleaned, obtaining, by a thin-film pressure sensor, the pressure values of the brush member acting on each target area of the target to be cleaned that is in contact with the brush member; and

[0009] Judging whether the target to be cleaned is damaged according to the pressure values of the brush member acting on the respective target areas.

[0010] Optionally, the step of determining whether the target to be cleaned is damaged according to the pressure value of the brush member acting on each target area includes:

[0011] When the pressure value of the brush member acting on any one of the target areas is continuously less than the preset lower limit of the pressure value, it is determined that the target to be cleaned is damaged.

[0012] Optionally, when the vibration self-cleaning device is in the working state of cleaning the target to be cleaned, the detection method further includes:

[0013] Driving the brush member to move along a preset trajectory through a driving member.

[0014] Optionally, the step of determining that the target to be cleaned is damaged when the pressure value of the brush member acting on any one of the target areas is continuously less than the preset lower limit of the pressure value includes:

[0015] Judging whether the pressure value of the brush member acting on any one of the target areas is less than the preset lower limit of the pressure value;

[0016] If so, stop the movement of the brush member and start timing;

[0017] Judging whether the pressure value in any one of the target areas is always less than the preset lower limit of the pressure value within a preset time period;

[0018] If so, it is determined that the target to be cleaned is damaged.

[0019] Optionally, after determining that the target to be cleaned is damaged, the detection method further includes: sending a prompt message for prompting that the target to be cleaned is damaged; wherein

[0020] The prompt message includes, but is not limited to, a sound prompt signal, a light prompt signal, and a status exception message pushed to the mobile terminal.

[0021] According to the second aspect of the present invention, the present invention further provides a detection system based on a vibration self-cleaning device, which includes:

[0022] A vibration self-cleaning device, including a brush member for cleaning the target to be cleaned, a vibration member connected to the brush member to controllably drive the brush member to vibrate, and a thin film pressure sensor for obtaining the pressure value of the brush member acting on each target area in contact with the target to be cleaned; and

[0023] A control device, including a memory and a processor, wherein a control program is stored in the memory, and when the control program is executed by the processor, it is used to implement the detection method described in any of the above solutions.

[0024] Optionally, the brush member has a base body and bristles connected to one side of the base body for contacting the object to be cleaned; and

[0025] The thin film pressure sensor is disposed between the base body and the bristles.

[0026] Optionally, the thin film pressure sensor and the bristles are isolated by a flexible film.

[0027] Optionally, the detection system further includes:

[0028] A driving member, directly or indirectly connected to the base body, to controllably drive the base body and the bristles to move in a plane parallel to the object to be cleaned.

[0029] According to a third aspect of the present invention, the present invention further provides an air conditioner, which includes:

[0030] A housing, an air inlet is formed on the housing, and a filter screen is disposed at the air inlet;

[0031] The detection system according to any one of the above solutions, disposed on the housing, and used to controllably clean the filter screen and detect whether the filter screen is damaged.

[0032] The applicant of the present invention has previously proposed a vibration self-cleaning device, which uses its brush member to clean the object to be cleaned and improves the cleaning efficiency and effect through the vibration of the brush member. The applicant has recognized that, in this process, the brush member will generate a certain acting force on the object to be cleaned, that is to say, when the object to be cleaned is not damaged, the pressure value generated by the brush member on the object to be cleaned is within a certain range. However, when there is a breakage in a certain area of the object to be cleaned, the pressure value generated by the brush member on the object to be cleaned is too small or zero. Therefore, the applicant has recognized that it is possible to indirectly detect whether there is a breakage in the object to be cleaned by detecting the pressure of the brush member acting on each area of the object to be cleaned.

[0033] Based on the above understanding, the applicant creatively disposes a thin film pressure sensor on the vibration self-cleaning device, and automatically and indirectly detects whether the object to be cleaned is damaged by the pressure values of the brush member acting on each target area in contact with the brush member obtained by the thin film pressure sensor, breaking through the traditional ideological understanding in the prior art that can only directly detect the object to be cleaned itself to judge its quality. By using the existing structure of the vibration self-cleaning device, only a thin film pressure sensor with a very simple structure and low cost needs to be added thereto, and there is no need to provide a complex or high-cost mechanism for directly detecting whether the filter screen is damaged, such as a camera, and there is no need for user participation. The design concept is novel, the structure is simple, it is easy to implement, and the cost is low, and the user experience is good.

[0034] Furthermore, the present application determines that the target to be cleaned is damaged only when the pressure value detected within any target area of the target to be cleaned by the brush member continuously remains less than the preset lower limit of the pressure value, avoiding the possibility of misjudgment caused by occasional detection errors and improving the accuracy of the detection result.

[0035] From the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more clearly aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Some specific embodiments of the present invention will be described in detail hereinafter with reference to the accompanying drawings in an exemplary but not restrictive manner. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0037] Figure 1 is a schematic structural diagram of a vibration self-cleaning device according to an embodiment of the present invention;

[0038] Figure 2 is a schematic flow chart of a detection method based on the self-cleaning device according to an embodiment of the present invention;

[0039] Figure 3 is a schematic flow chart for determining that the target to be cleaned is damaged when the pressure value detected within any of the target areas by the brush member continuously remains less than the preset lower limit of the pressure value according to an embodiment of the present invention;

[0040] Figure 4 is a schematic structural block diagram of a detection system based on the vibration self-cleaning device according to an embodiment of the present invention;

[0041] Figure 5 is a schematic cross-sectional view of a vibration self-cleaning device according to an embodiment of the present invention;

[0042] Figure 6 is a schematic structural diagram of the vibration self-cleaning device with the driving member hidden according to an embodiment of the present invention;

[0043] Figure 7 is a schematic structural diagram of an air conditioner according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0044] The present invention first provides a detection method based on a self-cleaning device for detecting whether a target to be cleaned is damaged. The applicant of the present invention has previously proposed a vibration self-cleaning device that uses its brush member to clean the target to be cleaned and improves the cleaning efficiency and effect by vibrating the brush member. The applicant has recognized that, in this process, the brush member will exert a certain force on the target to be cleaned. That is to say, when the target to be cleaned is not damaged, the pressure value generated by the brush member on the target to be cleaned is within a certain range. However, when there is a damage in a certain area of the target to be cleaned, the pressure value generated by the brush member on the target to be cleaned is too small or zero. Therefore, the applicant has recognized that it is possible to indirectly detect whether there is damage to the target to be cleaned by detecting the pressure exerted by the brush member on each area of the target to be cleaned.

[0045] Figure 1 FIG. is a schematic structural diagram of a vibration self-cleaning device according to an embodiment of the present invention. Refer to Figure 1 As shown in, the vibration self-cleaning device 10 of the present invention includes a brush member 11 for cleaning the target to be cleaned and a vibration member 12 connected to the brush member 11 to controllably drive the brush member 11 to vibrate. The vibration of the brush member 11 can improve the efficiency and effect of cleaning the target to be cleaned. In particular, the vibration self-cleaning device 10 further includes a thin-film pressure sensor 13 for obtaining the pressure values of the brush member 11 acting on each target area of the target to be cleaned in contact with the brush member 11. Specifically, the thin-film pressure sensor 13 is a thin-film pressure sensor, which has a large force-receiving area and can simultaneously obtain the multiple pressure values received by multiple different areas within the force-receiving area. Therefore, the thin-film pressure sensor 13 can be used to obtain multiple pressure values of the brush member 11 acting on each target area of the target to be cleaned, and each target area corresponds to a pressure value. It should be noted that since the surface area of the target to be cleaned may be larger than the surface area of the brush member, the term "each target area" as used in the present invention refers to each area formed after the part of the target to be cleaned in contact with the brush member is divided.

[0046] Figure 2 FIG. is a schematic flowchart of a detection method based on a self-cleaning device according to an embodiment of the present invention. The detection method of the present invention includes:

[0047] Step S10, in the working state where the vibration self-cleaning device 10 is cleaning the target to be cleaned, obtain the pressure values of the brush member 11 acting on each target area of the target to be cleaned in contact with the brush member 11 through the thin-film pressure sensor 13. That is to say, the thin-film pressure sensor 13 obtains multiple pressure values, and each pressure value represents the pressure of the brush member 11 acting on a corresponding target area of the target to be cleaned.

[0048] Step S20: Determine whether the object to be cleaned is damaged according to the pressure values of the brush member 11 acting on each target area of the object to be cleaned. Specifically, when the pressure values of the brush member 11 acting on each target area are all within the preset pressure value range, it indicates that the object to be cleaned is not damaged. When the pressure value of the brush member 11 acting on a certain target area is not within the preset pressure value range, it indicates that the object to be cleaned may be damaged.

[0049] The applicant creatively sets a thin-film pressure sensor on the vibration self-cleaning device, and automatically and indirectly detects whether the object to be cleaned is damaged by the pressure values of the brush member acting on each target area in contact with the brush member obtained by the thin-film pressure sensor. By utilizing the existing structure of the vibration self-cleaning device, only a thin-film pressure sensor with a very simple structure and low cost needs to be added thereto, without the need to set up a complex or high-cost mechanism for directly detecting whether the filter is damaged, such as a camera, and without the need for user participation. The design concept is novel, the structure is simple, it is easy to implement, the cost is low, and the user experience is good.

[0050] In some embodiments, step S20 of determining whether the object to be cleaned is damaged according to the pressure values of the brush member 11 acting on each target area of the object to be cleaned may specifically include:

[0051] When the pressure value of the brush member 11 acting on any target area of the object to be cleaned continuously is less than the preset lower limit of the pressure value, it is determined that the object to be cleaned is damaged.

[0052] That is to say, in this application, only when it is detected that the pressure value of the brush member acting on any target area of the object to be cleaned has been less than the preset lower limit of the pressure value within a preset time period, it is determined that the object to be cleaned is damaged, avoiding the possibility of misjudgment caused by occasional detection errors and improving the accuracy of the detection result.

[0053] Generally, the surface area of the object to be cleaned is larger than the surface area of the brush member. Therefore, during the cleaning process, the vibration self-cleaning device needs to move its position to facilitate a more comprehensive cleaning of the object to be cleaned. For this reason, in some embodiments, when the vibration self-cleaning device 10 is in the working state of cleaning the object to be cleaned, the detection method of the present invention further includes driving the brush member 11 to move along a preset trajectory by the driving member 14. The preset trajectory may be a path extending in an S shape, a circular shape or other suitable shapes on the surface of the object to be cleaned to facilitate a thorough cleaning of the object to be cleaned.

[0054] Figure 3It is a schematic flowchart for determining that the target to be cleaned is damaged when the pressure value of the brush member acting on any of the target areas is continuously less than the preset lower limit of the pressure according to an embodiment of the present invention. In some embodiments, the steps for determining that the target to be cleaned is damaged when the pressure value of the brush member 11 acting on any of the target areas is continuously less than the preset lower limit of the pressure may specifically include:

[0055] Step S21, determine whether the pressure value of the brush member 11 acting on any target area of the target to be cleaned is less than the preset lower limit of the pressure; if so, go to step S22; if not, return to step S10 to continue obtaining the pressure values of the brush member 11 acting on each target area of the target to be cleaned that is in contact with the brush member 11.

[0056] Step S22, stop the movement of the brush member 11 and start timing.

[0057] Step S23, determine whether the pressure value in any of the target areas has been less than the preset lower limit of the pressure within the preset time period; if so, go to step S24, if not, return to step S10 to continue obtaining the pressure values of the brush member 11 acting on each target area of the target to be cleaned that is in contact with the brush member 11.

[0058] Step S24, determine that the target to be cleaned is damaged.

[0059] That is to say, when it is detected that the pressure value of the brush member acting on a certain target area of the target to be cleaned is less than the preset lower limit of the pressure, control the brush member 11 to stop moving, so as to obtain the pressure value of the brush member acting on the target area of the target to be cleaned again. When the pressure value of the brush member acting on the target area of the target to be cleaned obtained within the preset time period has been less than the preset lower limit of the pressure, it proves that there is a damage phenomenon in the target area. The present invention determines whether there is damage in the target area by obtaining the pressure value of the brush member acting on the same target area multiple times when the brush member is in a stationary state, and the detection accuracy is higher, which can avoid the detection error that may occur when the target area changes at any time when the brush member is in a moving state.

[0060] In some embodiments, after determining that the target to be cleaned is damaged, the detection method of the present invention further includes: sending a prompt message for prompting that the target to be cleaned is damaged, so as to facilitate the user to know the state of the target to be cleaned and replace the target to be cleaned. Specifically, the prompt message includes but is not limited to a sound prompt signal, a light prompt signal, a status abnormal message pushed to the mobile terminal, etc. For example, after determining that the target to be cleaned is damaged, the damage information of the target to be cleaned can be pushed to the user terminal through the intelligent cloud, so as to remind the user that the target to be cleaned needs to be replaced.

[0061] The present invention also provides a detection system based on a vibration self-cleaning device, Figure 4is a schematic structural block diagram of a detection system based on a vibration self-cleaning device according to an embodiment of the present invention. Figure 4 The detection system 30 of the present invention includes a vibration self-cleaning device 10 and a control device 40.

[0062] The vibrating self-cleaning device 10 includes a brush member 111 for cleaning a target to be cleaned, a vibrating member 12 connected to the brush member 11 to drive the brush member 11 to vibrate in a controlled manner, and a film pressure sensor 13. The film pressure sensor 13 is used to obtain the pressure value of the brush member 11 acting on each target area of the target to be cleaned that is in contact with the brush member 11.

[0063] The control device 40 includes a memory 41 and a processor 42. The memory 41 stores a control program 43. When the control program 43 is executed by the processor 42, it is used to implement the detection method involved in any of the above embodiments. Specifically, the processor 42 can be a central processing unit (CPU), or a digital processing unit, etc. The processor 42 sends and receives data through a communication interface. The memory 41 is used to store the program executed by the processor 42. The memory 41 is any medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, and can also be a combination of multiple memories. The above control program 43 can be downloaded from a computer-readable storage medium to a corresponding computing / processing device or downloaded to a computer or an external storage device via a network (such as the Internet, a local area network, a wide area network and / or a wireless network).

[0064] Figure 5 is a schematic cross-sectional view of a vibrating self-cleaning device according to an embodiment of the present invention. In some embodiments, the brush member 11 has a base 111 and bristles 112 connected to one side of the base 111 for contacting the target to be cleaned. The applicant recognizes that the pressure of the brush member 11 acting on each target area of the target to be cleaned can be directly detected by a pressure sensor provided at the end of the bristles 112 or on the surface of the target to be cleaned. However, the bristles 112 are arranged in a plurality at intervals, and it is unrealistic to provide a pressure sensor at their ends. If the pressure sensor is provided on the surface of the target to be cleaned, the pressure sensor can only be used for the target to be cleaned, and the scope of use is narrow. Each target to be cleaned needs to be equipped with a pressure sensor, which is costly.

[0065] The applicant further realizes that the action of force is mutual. When the brush member 11 exerts pressure on the object to be cleaned, the object to be cleaned will also exert a reaction force on the brush member 11. Therefore, the pressure exerted by the brush member 11 on the object to be cleaned can be indirectly obtained by detecting the force exerted by the object to be cleaned on the brush member 11. For this purpose, the present application further disposes the thin-film pressure sensor 13 between the base body 111 and the bristles 112, that is, the thin-film pressure sensor 13 is embedded inside the brush member 11, which can not only accurately obtain the pressure of the brush member 11 on each target area of the object to be cleaned according to the principle of action and reaction, but also ensure the stability of the installation of the thin-film pressure sensor 13 and the structural stability of the entire vibration self-cleaning device 10, making the vibration self-cleaning device 10 applicable to various objects to be cleaned with low cost.

[0066] In some embodiments, the thin-film pressure sensor 13 and the bristles 112 are isolated by a flexible film 16. The flexible film 16 has good elasticity and hardly affects the force transmission between the thin-film pressure sensor 13 and the bristles 112, and can also prevent the bristles 112 from causing frictional damage to the thin-film pressure sensor 13 through the flexible film 16.

[0067] In some embodiments, the thin-film pressure sensor 13 covers the area where the bristles 112 are distributed. That is to say, the projection of the bristles 112 in the plane of the object to be cleaned falls within the projection of the thin-film pressure sensor 13 in this plane, so that the pressure exerted by the bristles 112 on each area of the object to be cleaned can be detected by the thin-film pressure sensor 13, improving the accuracy of the detection result.

[0068] In some embodiments, the vibrating member 12 includes a vibration power source 141 for outputting power and a vibration output shaft 142 connected to the vibration power source 141. The vibration output shaft 142 is connected to the base body 111 to transmit vibration to the base body 111 and then to the bristles 112 through the base body 111.

[0069] Specifically, the vibration power source 141 can be a power source capable of outputting ultrasonic vibration, such as an ultrasonic motor. The ultra-high-speed vibration of ultrasonic waves can decompose and crush the dirt with high viscosity attached to the object to be cleaned, and then the decomposed dirt is cleaned by the brush member 11 to achieve a better cleaning effect. The dirt cleaned by the brush member 11 can be temporarily stored in a dust collection box for convenient regular cleaning.

[0070] In some embodiments, a receiving cavity 113 is formed inside the base body 111, and the vibration power source 141 is disposed in the receiving cavity 113 to prevent the vibration power source 141 from being exposed outside and occupying extra space. The vibration output shaft 142 is embedded in the base body 111. Specifically, the vibration output shaft 142 can be inserted into the base body 111 from the receiving cavity 113, and its end can extend out of the base body 111 or can be hidden inside the base body 111 without extending out. The vibration output shaft 142 and the base body 111 are fixedly connected by this plugging method, and the connection effect is reliable, improving the vibration transmission efficiency. Further, a friction sleeve can be provided on the vibration output shaft 142 to increase the friction coefficient between it and the base body 111, further preventing relative movement between the vibration output shaft 142 and the base body 111 and affecting the vibration transmission.

[0071] In some embodiments, the number of the vibrating members 12 can be one or multiple. For example, in Figure 2 the illustrated embodiment, the number of the vibrating members 12 is two. The vibration power sources 141 of the two vibrating members 12 are both located in the receiving cavity 113, and the vibration output shafts 142 of the two vibrating members 12 are respectively plugged into the base body 111 from the receiving cavity 113 in opposite directions, improving the balance of vibration transmitted to the brush member 11.

[0072] Generally, the surface area of the object to be cleaned is larger than the surface area of the brush member. Therefore, during the cleaning process, the vibration self-cleaning device needs to move its position to facilitate a more comprehensive cleaning of the object to be cleaned. To this end, in some embodiments, the vibration self-cleaning device 10 further includes a driving member 14, and the driving member 14 is directly or indirectly connected to the base body 111 to controllably drive the base body 111 and the bristles 112 to move in a plane parallel to the object to be cleaned. Specifically, the driving member 14 can drive the brush member 11 to move along a preset trajectory. The preset trajectory can be a path extending in an S shape, a circular shape or other suitable shapes on the surface of the object to be cleaned to facilitate a thorough cleaning of the object to be cleaned.

[0073] Further, the driving member 14 can be a long driving rod, and the driving rod can be connected to an external driving mechanism.

[0074] Figure 6It is a schematic structural diagram of the vibration self-cleaning device according to an embodiment of the present invention with the driving member hidden. In some embodiments, the vibration self-cleaning device 10 further includes an attachment member 15 fixedly connected to the base body 111. Specifically, the attachment member 15 and the base body 111 can be fixedly connected by gluing, snap connection, screw connection or other suitable means. A connection hole 151 is formed inside the attachment member 15, and the driving member 14 is inserted into the connection hole 151 and is in form-fit connection with the connection hole 151 to drive the base body 111 to move through the attachment member, thereby driving the brush bristles 112 to move through the base body 111. Specifically, ribs 152 extending along the insertion direction of the driving member 14 can be formed in the connection hole 151, and grooves 141 extending along its insertion direction are provided at corresponding positions of the driving member 14. The ribs 152 are inserted into the grooves 141, realizing the form-fit connection between the driving member 14 and the connection hole 151, thereby preventing relative movement between the driving member 14 and the attachment member 15.

[0075] The attachment member 15 is used to assemble the vibration self-cleaning device 10 to other devices, such as an air conditioner, or can also be used as a structural member for convenient hand-holding. At the same time, the attachment member 15 also facilitates the connection between the driving member 14 and the brush member 11, avoiding directly inserting the driving member 14 into the base body 111 of the brush member 11 and affecting the vibrating member 12.

[0076] This application also provides an air conditioner. Figure 7 It is a schematic structural diagram of an air conditioner according to an embodiment of the present invention. The air conditioner 1 may include a housing 20, and an air inlet 21 is provided on the housing 20. A filter screen 22 is arranged at the air inlet 21 for filtering the air entering the housing 20 through the air inlet 21.

[0077] In particular, the air conditioner 1 further includes the detection system 30 involved in any of the above embodiments. The detection system 30 is arranged on the housing 20 and is used to clean the filter screen 22 in a controlled manner and detect whether the filter screen 22 is damaged.

[0078] That is to say, when applying the detection system 30 of this application to the air conditioner 1, the vibration self-cleaning device 10 can be used to automatically clean the filter screen 22 of the indoor unit of the air conditioner (at this time, the filter screen 22 is the to-be-cleaned target mentioned above). At the same time, the thin film pressure sensor 13 of the vibration self-cleaning device 10 can also be electrically connected to the control device 20 of the air conditioner 1, so as to judge whether the filter screen 22 is damaged according to the pressure detected by the thin film pressure sensor 13. After detecting that the filter screen 22 is damaged, a prompt message can also be sent to the user through the prompt device of the air conditioner 1 to remind the user of the state of the filter screen 22 and facilitate the user to replace the filter screen 22 in time.

[0079] This application does not require a device for directly detecting whether the filter screen 22 is damaged, such as a camera, to be provided on the air conditioner 1. Just adding a thin film pressure sensor 13 to the vibration self-cleaning device 10 for cleaning the filter screen 22 can accurately and indirectly detect whether the filter screen 22 is damaged, simplify the structure of the air conditioner 1, and have a wider range of applications.

[0080] Up to this point, those skilled in the art should recognize that although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and determined to cover all these other variations or modifications.

Claims

1. A detection method based on a vibration self-cleaning device for detecting whether a target to be cleaned is damaged. The vibration self-cleaning device includes a brush member for cleaning the target to be cleaned and a vibration member connected to the brush member to controllably drive the brush member to vibrate, characterized in that, The detection method includes: When the vibration self-cleaning device is in a working state of cleaning a target to be cleaned, obtaining, by means of a thin-film pressure sensor, the pressure values in each target area of the target to be cleaned that is in contact with the brush member; and Judging whether the target to be cleaned is damaged according to the pressure values of the brush member acting in each target area; When the vibration self-cleaning device is in a working state of cleaning a target to be cleaned, the detection method further includes: Driving the brush member to move along a preset trajectory by a driving member; The step of judging whether the target to be cleaned is damaged according to the pressure values of the brush member acting in each target area includes: Determining that the target to be cleaned is damaged when the pressure value of the brush member acting in any one of the target areas continuously is less than a preset lower pressure limit value; The brush member has a base body and bristles connected to one side of the base body for contacting the target to be cleaned; and The thin-film pressure sensor is arranged between the base body and the bristles.

2. The detection method according to claim 1, wherein The step of determining that the target to be cleaned is damaged when the pressure value of the brush member acting in any one of the target areas continuously is less than a preset lower pressure limit value includes: Judging whether the pressure value of the brush member acting in any one of the target areas is less than the preset lower pressure limit value; If so, stopping the movement of the brush member and starting timing; Judging whether the pressure value in any one of the target areas is always less than the preset lower pressure limit value within a preset time period; If so, determining that the target to be cleaned is damaged.

3. The detection method according to claim 1, wherein After determining that the target to be cleaned is damaged, the detection method further includes: sending a prompt message for prompting that the target to be cleaned is damaged; wherein The prompt message includes a sound prompt signal, a light prompt signal, and a status abnormal message pushed to a mobile terminal.

4. A detection system based on a vibration self-cleaning device, characterized in that, including: A vibration self-cleaning device, including a brush member for cleaning a target to be cleaned, a vibrating member connected to the brush member to controllably drive the brush member to vibrate, and a thin-film pressure sensor for obtaining the pressure values in each target area of the target to be cleaned that is in contact with the brush member; and A control device, including a memory and a processor, wherein a control program is stored in the memory, and when the control program is executed by the processor, it is used to implement the detection method according to any one of claims 1-3; The brush member has a base body and bristles connected to one side of the base body for contacting the target to be cleaned; and The thin-film pressure sensor is arranged between the base body and the bristles.

5. The detection system according to claim 4, wherein The thin-film pressure sensor and the bristles are isolated by a flexible film.

6. The detection system according to claim 4, wherein It further includes: A driving member, directly or indirectly connected to the base body, to controllably drive the base body and the bristles to move in a plane parallel to the target to be cleaned.

7. An air conditioner, characterized in that, including: A casing, an air inlet is provided on the casing, and a filter screen is arranged at the air inlet; The detection system according to any one of claims 4-6 is disposed on the casing and is used to controllably clean the filter screen and detect whether the filter screen is damaged.

Images