CN113019021A - Cleaning device and filter element blockage detection method of cleaning device - Google Patents
Cleaning device and filter element blockage detection method of cleaning device Download PDFInfo
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- CN113019021A CN113019021A CN202110220644.1A CN202110220644A CN113019021A CN 113019021 A CN113019021 A CN 113019021A CN 202110220644 A CN202110220644 A CN 202110220644A CN 113019021 A CN113019021 A CN 113019021A
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- 238000004140 cleaning Methods 0.000 title claims abstract description 77
- 238000001514 detection method Methods 0.000 title claims abstract description 68
- 238000001914 filtration Methods 0.000 claims abstract description 50
- 238000000034 method Methods 0.000 claims abstract description 27
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 239000000428 dust Substances 0.000 description 15
- 230000035939 shock Effects 0.000 description 11
- 238000009434 installation Methods 0.000 description 2
- 241001417527 Pempheridae Species 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
- B01D46/442—Auxiliary equipment or operation thereof controlling filtration by measuring the concentration of particles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a cleaning device and a filter element blockage detection method of the cleaning device. The cleaning device comprises a motor, a filter structure arranged at the air inlet end and/or the air outlet end of the motor, and a detection assembly used for detecting at least one gas parameter between the filter structure and the air inlet end and/or the air outlet end of the motor, and the method for detecting the blockage of the filter element of the cleaning device comprises the following steps: acquiring an initial pressure value detected by the detection assembly; acquiring a working pressure value detected by the detection assembly; and when the absolute value of the difference value between the working pressure value and the initial pressure value is greater than a preset value, judging that the filtering structure is blocked. The invention can effectively supervise the working condition of the filtering structure, can accurately judge the blocked position, effectively protects the normal operation of the motor, prolongs the service life of the motor and further prolongs the service life of the cleaning device.
Description
Technical Field
The invention relates to the technical field of cleaning devices, in particular to a cleaning device and a filter element blockage detection method of the cleaning device.
Background
The handheld cleaning device sucks up the garbage or dust in the environment through vacuum, and is popular with users due to convenient use and light weight. The cleaning device is generally internally provided with a filter device for filtering sucked air with dust so as to exhaust clean air to the indoor, but the cleaning device is likely to be blocked if not cleaned in time after being used for a period of time, and a user is generally not easy to find the blockage in the cleaning device and continue to use, so that the cleaning device is easy to damage.
Disclosure of Invention
In order to solve the above technical problems, a primary objective of the present invention is to provide a cleaning device and a method for detecting clogging of a filter element of the cleaning device, which are used for solving the problem that a user of a conventional vacuum cleaner cannot know the working condition of a filter inside the vacuum cleaner when using the vacuum cleaner, so that the vacuum cleaner is easily damaged.
In order to achieve the above object, the present invention provides a method for detecting clogging of a filter element of a cleaning device, where the cleaning device includes a motor, a filter structure disposed at an air inlet end and/or an air outlet end of the motor, and a detection assembly for detecting at least one gas parameter between the filter structure and the air inlet end and/or the air outlet end of the motor, and the method includes the following steps:
acquiring an initial pressure value detected by the detection assembly;
acquiring a working pressure value detected by the detection assembly;
and when the absolute value of the difference value between the working pressure value and the initial pressure value is greater than a preset value, judging that the filtering structure is blocked.
In one embodiment, the filter structure comprises a first filter assembly arranged at the air inlet end of the motor, and the detection assembly comprises a first sensor arranged between the air outlet end of the first filter assembly and the air inlet end of the motor;
when the absolute value of the difference value between the working pressure value and the initial pressure value is greater than a preset value, the step of judging that the filtering structure is blocked specifically comprises the following steps:
when the absolute value of the difference value between the working pressure value detected by the first sensor and the initial pressure value of the first sensor is greater than a preset value, the blockage of the first filtering component can be judged.
In one embodiment, the filter structure comprises a second filter assembly arranged at the air outlet end of the motor, and the detection assembly comprises a second sensor arranged between the air inlet end of the second filter assembly and the air outlet end of the motor;
when the absolute value of the difference value between the working pressure value and the initial pressure value is greater than a preset value, the step of judging that the filtering structure is blocked specifically comprises the following steps:
when the absolute value of the difference value between the working pressure value detected by the second sensor and the initial pressure value of the second sensor is greater than a preset value, the blockage of the second filtering component can be judged.
In one embodiment, the filter structure comprises a first filter assembly arranged at the air inlet end of the motor and a second filter assembly arranged at the air outlet end of the motor, and the detection assembly comprises a first sensor arranged between the air outlet end of the first filter assembly and the air inlet end of the motor and a second sensor arranged between the air inlet end of the second filter assembly and the air outlet end of the motor;
when the absolute value of the difference value between the working pressure value and the initial pressure value is greater than a preset value, the step of judging that the filtering structure is blocked specifically comprises the following steps:
when the absolute value of the difference value between the working pressure value detected by the first sensor and the initial pressure value of the first sensor is greater than a preset value, and the absolute value of the difference value between the working pressure value detected by the second sensor and the initial pressure value of the second sensor is less than or equal to the preset value, the blockage of the first filtering component can be judged;
when the absolute value of the difference value between the working pressure value detected by the first sensor and the initial pressure value of the first sensor is smaller than or equal to a preset value, and the absolute value of the difference value between the working pressure value detected by the second sensor and the initial pressure value of the second sensor is larger than the preset value, the blockage of the second filtering component can be judged;
when the absolute value of the difference value between the working pressure value detected by the first sensor and the initial pressure value of the first sensor is greater than a preset value, and the absolute value of the difference value between the working pressure value detected by the second sensor and the initial pressure value of the second sensor is also greater than the preset value, it can be judged that both the first filtering component and the second filtering component are blocked.
In an embodiment, after the step of determining that the filter structure is clogged when the absolute value of the difference between the working pressure value and the initial pressure value is greater than a preset value, the method further includes the following steps:
and sending a blocking signal after judging that the filtering structure is blocked.
In an embodiment, the occlusion signal comprises a photo signal and/or an acoustic signal.
In an embodiment, after the step of determining that the filter structure is clogged when the absolute value of the difference between the working pressure value and the initial pressure value is greater than a preset value, the method further includes the following steps:
and when the filter structure is judged to be blocked, controlling the motor to stop working.
In one embodiment, the initial pressure value is an atmospheric pressure value.
The present invention also provides a cleaning device comprising:
the motor is used for generating airflow and comprises an air inlet end and an air outlet end;
the filter structure comprises a first filter component and a second filter component, wherein the first filter component is arranged at the upstream of the air inlet end of the motor and is used for filtering air flow entering the motor; the second filtering component is arranged at the downstream of the air inlet end of the motor and is used for filtering the airflow discharged by the motor;
the detection assembly comprises a detection circuit board, a first sensor and a second sensor, wherein the first sensor and the second sensor are arranged on the detection circuit board, and the first sensor is used for detecting at least one gas parameter of gas between the first filter assembly and the air inlet end of the motor; the second sensor is used for detecting at least one gas parameter of the gas between the air outlet end of the motor and the second filter assembly.
In one embodiment, the device further comprises an alarm device electrically connected with the detection assembly, wherein the alarm device comprises a display part and/or an acoustic alarm.
In the technical scheme provided by the invention, the method for detecting the blockage of the filter element of the cleaning device specifically comprises the following steps: acquiring an initial pressure value detected by the detection assembly; acquiring a working pressure value detected by the detection assembly; and when the absolute value of the difference value between the working pressure value and the initial pressure value is greater than a preset value, judging that the filtering structure is blocked. The air pressure of the air inlet end and/or the air outlet end of the filter structure and the motor is monitored in real time through the detection assembly, when the structure is blocked, the air pressure value at the upper reaches of the air inlet end of the motor or at the lower reaches of the air outlet end of the motor rises or falls sharply, the air pressure value at the upper reaches of the air inlet end of the motor or at the lower reaches of the air outlet end of the motor is obtained, the working condition of the filter structure can be effectively monitored, the blocked position can be accurately judged, the normal operation of the motor is effectively protected, the service life of the motor is prolonged, and the service life.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a hand-held cleaning device according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of the hand-held cleaning device of FIG. 1;
FIG. 3 is an enlarged schematic view of detail A in FIG. 2;
FIG. 4 is a schematic view of the detection assembly and the shock pad of FIG. 1;
FIG. 5 is a schematic view of the detection assembly and the shock pad of FIG. 4 from another perspective;
FIG. 6 is a schematic illustration of the second filter assembly of FIG. 1;
FIG. 7 is a schematic view of the circuit board mount of FIG. 1;
FIG. 8 is a schematic structural view of the hand-held construction of FIG. 1;
fig. 9 is a schematic flow chart of a method for detecting clogging of a filter element of a cleaning device according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indication is involved in the embodiment of the present invention, the directional indication is only used for explaining the relative positional relationship, the motion situation, and the like between the components in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Fig. 1 to 8 show an embodiment of the cleaning device provided by the present invention, and fig. 9 shows an embodiment of the filter clogging detecting method provided by the cleaning device provided by the present invention.
Referring to fig. 1 and fig. 2, in the present embodiment, the cleaning device 100 includes a motor 22, a filtering structure and a detecting component 5; the motor 22 is used for generating an air flow, and includes an air inlet end and an air outlet end, so that when the cleaning device 100 performs cleaning operation, dust and other garbage can be sucked into the cleaning device 100, and clean air flow is discharged to the indoor; the filter structure comprises a first filter component and a second filter component, wherein the first filter component 3 is arranged at the upstream of the air inlet end of the motor 22 and is used for filtering the air flow entering the motor 22; the second filtering component 4 is arranged at the downstream of the air inlet end of the motor 22 and is used for filtering the airflow discharged by the motor 22; the detection component 5 comprises a detection circuit board 51, a first sensor 53 and a second sensor 54, wherein the first sensor 53 and the second sensor 54 are arranged on the detection circuit board 51, and the first sensor 53 is used for detecting at least one gas parameter of gas between the first filter component 3 and the air inlet end of the motor 22; the second sensor 54 is used for detecting at least one gas parameter of the gas between the air outlet end of the motor 22 and the second filter assembly 4.
It should be noted that the gas parameter may be a gas pressure value or a dust content, and accordingly, the first sensor 53 and the second sensor 54 may be a gas pressure sensor or a dust sensor. The cleaning device 100 provided in the present invention can be a cleaning device, a sweeper, a mopping machine, etc., and for the convenience of understanding the arrangement of the detecting assembly 5, the following description will take the detecting assembly 5 as an example applied in the cleaning device. In addition, in this embodiment, the following description about the orientation all refers to the cleaning device during normal use, and when the cleaning device is during normal use, the first filter assembly 3 is located below the motor 22, the air inlet end of the motor 22 is located below the motor 22, and the air outlet end of the motor 22 is located above the motor 22. In other embodiments, the motor 22 and dirt cup can also be positioned laterally with respect to the handle (not shown).
In the technical scheme provided by the invention, the first filtering component 3 is arranged at the upstream of the air inlet end of the motor 22 and is used for filtering the airflow entering the motor 22, so that the interior of the motor 22 is prevented from being stained with excessive dust, and the motor 22 is protected; the second filtering component 4 is arranged at the downstream of the air outlet end of the motor 22 and is used for filtering the airflow discharged by the motor 22, so that the airflow discharged into a user room can be cleaner; moreover, the detection assembly 5 is arranged to detect the parameters of the gas in the cleaning device 100, so that whether the filtering assembly in the cleaning device 100 is blocked or not can be known, and a user can be reminded to clean the gas in time; specifically, a first sensor 53 and a second sensor 54 are arranged in the cleaning device 100, the first sensor 53 is used for detecting at least one gas parameter of the gas between the first filter assembly 3 and the air inlet end of the motor 22; the second sensor 54 is used for detecting at least one gas parameter of the gas between the air outlet end of the motor 22 and the second filter assembly 4, and the gas parameter may be a gas pressure value, when the first filter assembly 3 is blocked, the external air flow can not enter the air inlet end of the motor 22 through the first filter assembly 3, the vacuum degree between the first filter assembly 3 and the air inlet end of the motor 22 is increased (the pressure is reduced relative to the calibrated pressure), at this time, the measurement result can be fed back to the user through the first sensor 53 in time so that the user can turn off the cleaning apparatus 100 in time to protect the motor 22, and, as such, when the second filter component 4 is blocked, the pressure between the first filter component and the second filter component is increased relative to the calibrated pressure, a user can know in time, the two sensors detect respectively, the user can know the blocked position clearly, the detection is more reliable, and the user operation is more convenient.
Because the air inlet end and the air outlet end of the motor 22 are generally disposed at two ends of the motor 22, in order to facilitate detection, the detection circuit board 51 is generally horizontally disposed in the cleaning device 100, specifically, referring to fig. 3, the detection circuit board 51 includes a first surface and a second surface which are oppositely disposed, the first sensor 53 is disposed on the first surface, the second sensor 54 is disposed on the second surface, and the first sensor 53 and the second sensor 54 are simultaneously mounted on the detection circuit board 51, so that the structure is simpler. It will be appreciated that the detection circuit board 51 may also be placed in any form according to the structural requirements.
In order to reduce the noise of the cleaning device 100, a shock pad 24 is arranged between the air inlet end of the motor 22 and the first filtering component 3, and the detecting component 5 is arranged on the shock pad 24, so that the structure is simpler, and the installation is more convenient.
In order to guarantee the accuracy that detection component 5 detected, the air inlet end at shock pad 24 and motor 22 is injectd and is had first cavity, it has the second cavity to be injectd between the air-out end of motor 22 and second filter assembly 4, set up the first passageway of crossing wind with first cavity intercommunication on the shock pad 24, and set up the second passageway of crossing wind with second cavity intercommunication, thereby can set up a sensor in the first passageway of crossing wind, set up another sensor in the second passageway of crossing wind, separate first cavity and second cavity, can more accurate detection jam department.
The arrangement forms of the first air passing channel and the second air passing channel are various. In an embodiment, referring to fig. 4, a first limiting groove 241 is disposed on the shock pad 24, a notch of the first limiting groove 241 faces upward, the detection circuit board 51 is disposed in the first limiting groove 241, the first sensor 53 is located on a side of the detection circuit board 51 facing a bottom of the first limiting groove 241, a vent hole 242 is disposed on a side wall of the first limiting groove 241, the vent hole 242 communicates the first limiting groove 241 and the second cavity, and the second sensor 54 is located in the first limiting groove 241 and communicates with the second cavity to detect a gas parameter in the second cavity, so as to monitor a blockage condition of the second filter element 4.
Further, with reference to fig. 3 and 5, a first opening 244 corresponding to the first sensor 53 is formed in the bottom wall of the first limiting groove 241, and the first opening 244 is communicated with the first cavity to form a first air passing channel, so that the gas parameter in the first cavity can be detected, and the blockage condition of the first filter assembly 3 can be monitored.
In this embodiment, with reference to fig. 2 and fig. 3, in order to make the installation of the motor 22 more stable, the cleaning device 100 further includes a motor mounting bracket 23 for installing the motor 22, the motor mounting bracket 23 is used for fixing the motor 22 so as to fix both the upper portion and the lower portion of the motor 22, specifically, the motor mounting bracket 23 includes a bottom plate 231 disposed at an air inlet end of the motor 22, and a first side plate 232 disposed on the bottom plate 231, the motor 22 is installed on the bottom plate 231, and the first side plate 232 is annularly disposed on the peripheral side of the motor 22 so as to be connectable to the upper portion of the motor 22; a through hole is formed in the bottom plate 231, and the through hole is communicated with the air outlet end of the first filter component 3 and the air inlet end of the motor 22, so that airflow filtered from the first filter component 3 can enter the air inlet end of the motor 22 through the through hole; at this moment, the shock pad 24 can be arranged at the transition between the bottom plate 231 and the first side plate 232 and around the periphery of the air inlet end of the motor 22, so that the gap between the motor mounting frame 23 and the motor 22 is sealed, air flow is prevented from mixing, the motor 22 can be damped through the shock pad 24, the detection assembly 5 can also be used for mounting and fixing, and the structure is simpler.
In the present embodiment, referring to fig. 4 and 7, the cleaning device 100 further includes a circuit board mounting bracket 55 for mounting the detection component 5, so that the detection circuit board 51 is more stably mounted on the shock pad 24; the circuit board mounting bracket 55 and the detection circuit board 51 are mounted in various ways, in an embodiment, one of the detection circuit board 51 and the circuit board mounting bracket 55 is provided with a stud 551, the other is provided with a mounting hole 52 matched with the stud 551, and the detection circuit board 51 and the circuit board mounting bracket 55 are connected by penetrating the stud 551 and the mounting hole 52 through a screw.
Specifically, referring to fig. 5, a second limiting groove 243 is disposed on the shock pad 24 and opposite to the first limiting groove 241, and the circuit board mounting bracket 55 is disposed in the second limiting groove 243; the circuit board mounting bracket 55 is provided with a second opening 552 corresponding to the first opening 244, and the second opening 552 is communicated with the first cavity, so that the first sensor 53 can be communicated with the first cavity to detect the gas in the first cavity.
In this embodiment, with reference to fig. 3 and fig. 6, the motor mounting bracket 23 further includes a second side plate 233 enclosed outside the first side plate 232, and ends of the first side plate 232 and the second side plate 233 far away from the bottom plate 231 are connected; second filtering component 4 includes along being the punch holder 41 and the lower plate 42 that the interval set up from top to bottom, and locate the filter paper 43 between punch holder 41 and the lower plate 42, punch holder 41 and lower plate 42 all are connected with motor mounting bracket 23, filter paper 43 encircles the week side of locating motor 22, and be located between the interval of first curb plate 232 and second curb plate 233, filter paper 43's air inlet end communicates with each other with motor 22's air-out end, filter paper 43's air-out end is used for being linked together with exhaust hole 61 on the cleaning device 100, in order to arrange clean gas to indoor.
It is understood that the cleaning device 100 generally further comprises a housing 21 and the dust cup assembly 1, the housing 21 can enclose the motor 22, the second filter assembly 4 and the detection assembly 5 therein, so as to provide a more beautiful appearance, and the air outlet 61 can be disposed on the housing 21 to communicate with the air outlet end of the filter paper 43. The dust cup assembly 1 includes a dust cup 11 for storing filtered dust and other garbage, wherein the first filtering assembly 3 can also be disposed inside the dust cup 11, so that the dust filtered by the first filtering assembly 3 can directly fall into the dust cup 11.
Referring to fig. 7, when the cleaning device 100 is configured as a handheld cleaning device, the cleaning device 100 may further include a handheld structure, and the exhaust hole 61 may be disposed on the handheld structure 6.
With reference to fig. 9, the following provides a specific embodiment of the method for detecting clogging of a filter element of a cleaning device according to the present invention, wherein the method for detecting clogging of a filter element of a cleaning device specifically includes the following steps:
s100, acquiring an initial pressure value detected by the detection component 5 at the moment of starting the cleaning device;
when the cleaning device does not work, the inside of the cleaning device is communicated with the atmospheric pressure, the internal pressure of the cleaning device is basically the same as the atmospheric pressure, and the detection value detected by the detection component 5 is the local atmospheric pressure value at the moment of starting the cleaning device. The control board of the cleaning device receives the signal (i.e., the signal reflecting the atmospheric pressure value);
it will of course be appreciated that the clogging of the filter structure may also be measured in relation to other parameters in the air flow, such as the dust content, etc., and that only the type of detection assembly 5 has to be changed. In this embodiment, the detection component 5 can be configured as a pressure sensor, so that the detection is more convenient.
S200, acquiring a working pressure value detected by the detection component 5 in real time within the working time of the cleaning device;
it should be noted that, during the operation of the cleaning device, a large amount of dust enters into the cleaning device and is filtered by the filtering structure, at this time, the air pressure value in the cleaning device changes, the detecting component 5 detects the change of the air pressure value in real time to transmit to the controller connected to the detecting component 5, and the controller processes the detection result of the detecting component 5.
S300, when the absolute value of the difference value between the working pressure value and the initial pressure value is larger than a preset value, judging that the filtering structure is blocked.
It should be noted that, when the detection result of the controller is that the absolute value of the difference between the working pressure value and the initial pressure value is greater than the preset value, the controller determines that the filter structure is blocked.
Through the atmospheric pressure of 5 real-time supervision filtration and motor 22's air inlet end and/or air-out end department of determine module, when crossing the structure jam, motor 22 air inlet end upper reaches or motor 22 air-out end low reaches atmospheric pressure value net sharply rise or descend, through obtaining motor 22 air inlet end upper reaches or motor 22 air-out end low reaches atmospheric pressure value, can effectively supervise filtration's operating condition, and can judge the accuracy to jam department, can effectively protect motor 22 normal operating, extension motor 22's life, thereby improve cleaning device's life.
The filter structure has various arrangement forms, and the measuring method is different according to different arrangement forms.
A second embodiment of the cleaning device cartridge clogging detection method of the present invention is presented below.
When the filtration only included the first filter component 3 of locating the air inlet end of motor 22, detection component 5 was including locating first sensor 53 between the air-out end of first filter component 3 and the air inlet end of motor 22, the step of above-mentioned S300 specifically included:
when the absolute value of the difference between the working pressure value detected by the first sensor 53 and the initial pressure value of the first sensor 53 is greater than the preset value, it may be determined that the first filter assembly 3 is clogged.
It should be noted that, when the first filter element 3 is in a normal state, the working pressure value detected by the first sensor 53 is not changed much from the initial pressure value, after the first filter element 3 is blocked, the air flow cannot pass through the first filter element 3, but the motor 22 is still running, so that the first cavity is vacuum, the air pressure is rapidly reduced, and the air pressure value at the air inlet side of the motor 22 is detected in real time by the first sensor 53, so that the first filter element 3 can be monitored, and a user can find the working condition of the first filter element 3 in time and can process the working condition in time.
A third embodiment of the method for detecting clogging of a filter element of a cleaning device according to the invention is presented below.
The filter structure may only comprise the second filter assembly 4 arranged at the air outlet end of the motor 22, and the detection assembly 5 comprises a second sensor 54 arranged between the air inlet end of the second filter assembly 4 and the air outlet end of the motor 22;
in this case, the step S300 specifically includes:
when the absolute value of the difference between the working pressure value detected by the second sensor 54 and the initial pressure value of the second sensor 54 is greater than the preset value, it may be determined that the second filter assembly 4 is clogged.
It should be noted that, when the second filter assembly 4 is in a normal state, the working pressure value detected by the second sensor 54 does not change much from the initial pressure value, when the second filter assembly 4 is blocked, the air flow cannot be discharged from the second filter assembly 3, but the motor 22 is still running, so that no air flow is continuously input into the second cavity and no air flow is output, the air pressure increases sharply, and the air pressure value at the air outlet side of the motor 22 is detected in real time by the second sensor 54, so that the second filter assembly 4 can be monitored, and a user can timely find the working condition of the second filter assembly 4 and can timely process the working condition.
A fourth embodiment of the method for detecting clogging of a filter element of a cleaning device according to the invention is presented below.
When the filter structure comprises the first filter component 3 arranged at the air inlet end of the motor 22 and the second filter component 4 arranged at the air outlet end of the motor 22, and the detection component 5 comprises the first sensor 53 arranged between the air outlet end of the first filter component 3 and the air inlet end of the motor 22 and the second sensor 54 arranged between the air inlet end of the second filter component 4 and the air outlet end of the motor 22,
in this case, the step S300 specifically includes:
when the absolute value of the difference between the working pressure value detected by the first sensor 53 and the initial pressure value of the first sensor 53 is greater than the preset value, and the absolute value of the difference between the working pressure value detected by the second sensor 54 and the initial pressure value of the second sensor 54 is less than or equal to the preset value, it can be determined that the first filter assembly 3 is blocked;
when the absolute value of the difference between the working pressure value detected by the first sensor 53 and the initial pressure value of the first sensor 53 is less than or equal to the preset value, and the absolute value of the difference between the working pressure value detected by the second sensor 54 and the initial pressure value of the second sensor 54 is greater than the preset value, it can be determined that the second filter assembly 4 is blocked;
when the absolute value of the difference between the working pressure value detected by the first sensor 53 and the initial pressure value of the first sensor 53 is greater than the preset value, and the absolute value of the difference between the working pressure value detected by the second sensor 54 and the initial pressure value of the second sensor 54 is also greater than the preset value, it can be determined that both the first filter assembly 3 and the second filter assembly 4 are blocked.
Based on the same judgment principle, the magnitude of the working pressure value on different sides of the motor 22 is compared with the initial pressure value, so that the blockage point can be judged and more accurate treatment can be carried out.
After the controller determines that the filter element is clogged, in order to better inform the user, the controller further includes the following steps after the step S300:
and sending a blocking signal after judging that the filtering structure is blocked.
Specifically, the blockage signal includes a photoelectric signal and/or an acoustic signal, for example, a display screen may be disposed on the housing of the cleaning device, and when the first filter assembly 3 and/or the second filter assembly 4 is blocked, the blockage condition is displayed on the display screen, or an alarm sound may be emitted to remind the user.
Of course, in another embodiment, after the controller determines that the filter element is clogged, in order to protect the motor 22 in time, after the step S300, the following steps are further included:
when the filter structure is judged to be blocked, the motor 22 is controlled to stop working.
After the controller determines that at least one of the filter assemblies is clogged, the controller immediately controls the motor 22 to pause so as to prevent the motor 22 from being damaged, thereby better protecting the motor 22.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all equivalent structures made by using the contents of the specification and the drawings of the present invention or directly or indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (10)
1. The method for detecting the blockage of the filter element of the cleaning device is characterized by comprising a motor (22), a filter structure and a detection assembly (5), wherein the filter structure is arranged at an air inlet end and/or an air outlet end of the motor (22), the detection assembly is used for detecting at least one gas parameter between the filter structure and the air inlet end and/or the air outlet end of the motor (22), and the method for detecting the blockage of the filter element of the cleaning device comprises the following steps:
acquiring an initial pressure value detected by the detection component (5);
acquiring a working pressure value detected by the detection component (5);
and when the absolute value of the difference value between the working pressure value and the initial pressure value is greater than a preset value, judging that the filtering structure is blocked.
2. The method for detecting the blockage of the filter element of the cleaning device according to claim 1, wherein the filter structure comprises a first filter component (3) arranged at the air inlet end of the motor (22), and the detection component (5) comprises a first sensor (53) arranged between the air outlet end of the first filter component (3) and the air inlet end of the motor (22);
when the absolute value of the difference value between the working pressure value and the initial pressure value is greater than a preset value, the step of judging that the filtering structure is blocked specifically comprises the following steps:
when the absolute value of the difference value between the working pressure value detected by the first sensor (53) and the initial pressure value of the first sensor (53) is greater than a preset value, the blockage of the first filtering component (3) can be judged.
3. The method for detecting the blockage of the filter element of the cleaning device according to claim 1, wherein the filter structure comprises a second filter assembly (4) arranged at the air outlet end of the motor (22), and the detection assembly (5) comprises a second sensor (54) arranged between the air inlet end of the second filter assembly (4) and the air outlet end of the motor (22);
when the absolute value of the difference value between the working pressure value and the initial pressure value is greater than a preset value, the step of judging that the filtering structure is blocked specifically comprises the following steps:
when the absolute value of the difference value between the working pressure value detected by the second sensor (54) and the initial pressure value of the second sensor (54) is greater than a preset value, the blockage of the second filtering component (4) can be judged.
4. The method for detecting the blockage of the filter element of the cleaning device according to claim 1, wherein the filter structure comprises a first filter component (3) arranged at the air inlet end of the motor (22) and a second filter component (4) arranged at the air outlet end of the motor (22), and the detection component (5) comprises a first sensor (53) arranged between the air outlet end of the first filter component (3) and the air inlet end of the motor (22) and a second sensor (54) arranged between the air inlet end of the second filter component (4) and the air outlet end of the motor (22);
when the absolute value of the difference value between the working pressure value and the initial pressure value is greater than a preset value, the step of judging that the filtering structure is blocked specifically comprises the following steps:
when the absolute value of the difference between the working pressure value detected by the first sensor (53) and the initial pressure value of the first sensor (53) is greater than a preset value, and the absolute value of the difference between the working pressure value detected by the second sensor (54) and the initial pressure value of the second sensor (54) is less than or equal to a preset value, the first filter assembly (3) can be judged to be blocked;
when the absolute value of the difference between the working pressure value detected by the first sensor (53) and the initial pressure value of the first sensor (53) is less than or equal to a preset value, and the absolute value of the difference between the working pressure value detected by the second sensor (54) and the initial pressure value of the second sensor (54) is greater than the preset value, the blockage of the second filtering component (4) can be judged;
when the absolute value of the difference between the working pressure value detected by the first sensor (53) and the initial pressure value of the first sensor (53) is greater than a preset value, and the absolute value of the difference between the working pressure value detected by the second sensor (54) and the initial pressure value of the second sensor (54) is also greater than a preset value, it can be judged that both the first filter assembly (3) and the second filter assembly (4) are blocked.
5. The method for detecting clogging of a filter element of a cleaning device according to claim 1, wherein after the step of determining clogging of the filtering structure when the absolute value of the difference between the operating pressure value and the initial pressure value is greater than a preset value, the method further comprises the steps of:
and sending a blocking signal after judging that the filtering structure is blocked.
6. The cleaning apparatus filter element blockage detection method of claim 5, wherein said blockage signal comprises a photoelectric signal and/or an acoustic signal.
7. The method for detecting clogging of a filter element of a cleaning device according to claim 1, wherein after the step of determining clogging of the filtering structure when the absolute value of the difference between the operating pressure value and the initial pressure value is greater than a preset value, the method further comprises the steps of:
and when the filter structure is judged to be blocked, controlling the motor (22) to stop working.
8. The method of claim 1, wherein the initial pressure value is an atmospheric pressure value.
9. A cleaning device, comprising:
the motor (22) is used for generating air flow and comprises an air inlet end and an air outlet end;
the filter structure comprises a first filter component (3) and a second filter component (4), wherein the first filter component (3) is arranged at the upstream of the air inlet end of the motor (22) and is used for filtering air flow entering the motor; the second filtering component (4) is arranged at the downstream of the air inlet end of the motor (22) and is used for filtering the airflow discharged by the motor;
the detection assembly (5) comprises a detection circuit board (51), and a first sensor (53) and a second sensor (54) which are arranged on the detection circuit board (51), wherein the first sensor (53) is used for detecting at least one gas parameter of gas between the first filter assembly (3) and the air inlet end of the motor (22); the second sensor (53) is used for detecting at least one gas parameter of gas between the air outlet end of the motor (22) and the second filter assembly (3).
10. The cleaning device according to claim 9, further comprising an alarm device electrically connected to the detection assembly (5), the alarm device comprising a display member and/or an audible alarm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110220644.1A CN113019021A (en) | 2021-02-26 | 2021-02-26 | Cleaning device and filter element blockage detection method of cleaning device |
| PCT/CN2022/077798 WO2022179585A1 (en) | 2021-02-26 | 2022-02-25 | Cleaning device, and blocking measurement method for filter element of same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110220644.1A CN113019021A (en) | 2021-02-26 | 2021-02-26 | Cleaning device and filter element blockage detection method of cleaning device |
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| CN113019021A true CN113019021A (en) | 2021-06-25 |
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| CN202110220644.1A Pending CN113019021A (en) | 2021-02-26 | 2021-02-26 | Cleaning device and filter element blockage detection method of cleaning device |
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| Country | Link |
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| CN (1) | CN113019021A (en) |
| WO (1) | WO2022179585A1 (en) |
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| CN113521893A (en) * | 2021-07-07 | 2021-10-22 | 珠海格力电器股份有限公司 | Method and device for detecting blockage of filter screen, electronic equipment and storage medium |
| WO2022179585A1 (en) * | 2021-02-26 | 2022-09-01 | 追觅创新科技(苏州)有限公司 | Cleaning device, and blocking measurement method for filter element of same |
| CN117309664A (en) * | 2023-09-26 | 2023-12-29 | 江苏派力克流体科技有限公司 | Self-checking equipment for filtering efficiency of sintered filter element finished product |
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Application publication date: 20210625 |