Air treatment equipment and filth blockage monitoring method thereof

Abstract

The invention relates to the technical field of air treatment equipment, and discloses air treatment equipment and a filth blockage monitoring method thereof. The air supply fan blades are rotatably arranged in the air duct assembly; the filter screen is arranged in the air duct assembly; the filth blockage monitoring piece is movably connected to the air duct assembly; the reset piece is connected between the air duct assembly and the filth blockage monitoring piece; the position monitoring structure is arranged on the air duct assembly; when the air supply fan blades rotate, under the driving of air supply flow, the filth blockage monitoring piece has a first state of overcoming the reset acting force of the reset piece to move from a first position to a second position and a second state of keeping or resetting to the first position. The position monitoring structure is used for monitoring position information of the filth blockage monitoring part, and the controller judges the filth blockage degree of the filter screen according to the position information of the filth blockage monitoring part. According to the air treatment equipment, the filth blockage degree of the filter screen can be judged, and the air treatment equipment is controlled according to the filth blockage degree.

Description

Technical Field

[0001] The present invention relates to the technical field of air treatment equipment, and in particular to air treatment equipment and a method for monitoring dirt and blockage thereof. Background Art

[0002] With the improvement of the quality of life, users pay more and more attention to health, and the requirements for air quality are getting higher and higher. The demand for fans with filtering effects is also increasing. Fans with filtering effects are generally equipped with filters on the air supply path. The filters filter out dust, lint and other impurities in the air in advance when blowing, so as to deliver clean and healthy air.

[0003] However, after long-term use, if the filter is not replaced or cleaned in time, dust, lint and other impurities will adhere to the filter, reducing the air permeability of the filter, which in turn affects the air volume of the fan, causing the pressure of the input air volume to increase. When the fan runs in this state for a long time, the power of the motor and mainboard will increase, and continuous operation will easily damage the fan. Summary of the invention

[0004] In view of this, the present invention provides an air treatment device and a method for monitoring dirt and blockage thereof to solve the problem that if the filter is not replaced or cleaned in time, dust, lint and other impurities will adhere to the filter for a long time, causing the filter to become clogged.

[0005] In a first aspect, the present invention provides an air treatment device, comprising:

[0006] Air duct components;

[0007] An air supply blade is rotatably disposed in the air duct assembly;

[0008] A filter screen is arranged in the air duct assembly;

[0009] A dirt and blockage monitoring component, movably connected to the air duct assembly;

[0010] A reset component connected between the air duct assembly and the dirt and blockage monitoring component;

[0011] A position monitoring structure, arranged on the air duct assembly;

[0012] Among them, when the air supply blade rotates, driven by the air supply airflow, the dirt and blockage monitoring component has a first state of moving from the first position to the second position by overcoming the resetting force of the resetting component, and a second state of maintaining or resetting to the first position; the position monitoring structure is used to monitor the position information of the dirt and blockage monitoring component, and the controller determines the degree of dirt and blockage of the filter net through the position information of the dirt and blockage monitoring component.

[0013] Beneficial effect: The setting of the filter can filter out dust, lint and other impurities in the air in advance when the air handling equipment delivers air, so as to deliver clean and healthy air. When the air handling equipment is in working state, the air supply blades rotate to generate an air supply airflow in the air duct assembly, and the air supply airflow can provide a driving force for the dirty blockage monitoring component to move to the second position; when the driving force generated by the air supply airflow is greater than the reset force provided by the reset component, the dirty blockage monitoring component moves from the first position to the second position, and the dirty blockage monitoring component is in the first state. At this time, it is considered that the degree of dirty blockage of the filter is low, the air permeability of the filter is good, and it will not affect the air supply volume of the air handling equipment, and the air supply blades can continue to rotate; when the driving force generated by the air supply airflow is less than or equal to the reset force provided by the reset component, the dirty blockage monitoring component remains in the first position or resets from the second position to the first position, and the dirty blockage monitoring component is in the second state. At this time, it is considered that the degree of dirty blockage of the filter is high, the air permeability of the filter is poor, and it affects the air supply volume of the air handling equipment. At this time, the air supply blades are controlled to stop rotating, and the filter is replaced or cleaned, which can avoid the filter with a high degree of dirty blockage from affecting the air supply volume of the air handling equipment, avoid the increase in motor and mainboard power caused by the increase in input air volume pressure, and prevent damage to the air handling equipment. The position monitoring structure is used to obtain the position information of the dirty and blocked monitoring component, and the dirty and blocked degree of the filter is determined by the position information of the dirty and blocked monitoring component. The air handling equipment is controlled according to the dirty and blocked degree of the filter to prevent the dust, lint and other impurities attached to the filter from affecting the air handling equipment and thus avoiding damage to the air handling equipment. In addition, since the movement of the dirty and blocked monitoring component is directly related to the air supply volume of the air handling equipment, and the air supply volume of the air handling equipment is directly affected by the dirty and blocked degree of the filter, the position monitoring structure can quickly and accurately obtain the dirty and blocked degree of the filter.

[0014] In an optional embodiment, the dirt and blockage monitoring component can be movably arranged at a position close to the filter screen.

[0015] Beneficial effect: By setting it close to the filter, the change of the degree of dirtiness and blockage of the filter can be obtained more sensitively, so that the dirtiness and blockage monitoring component can move more accurately and the monitoring result of the position monitoring structure can be more accurate.

[0016] In an optional embodiment, the air duct assembly includes:

[0017] The air duct body has an air inlet and an air outlet;

[0018] The rear net is connected to the air inlet, and the dirt and blockage monitoring component can be movably connected to the rear net.

[0019] Beneficial effect: The dirty and blocked monitoring component is arranged on the rear net, which can be hidden to ensure the aesthetics of the air outlet and avoid the dirty and blocked monitoring component from blocking the air outlet.

[0020] In an optional embodiment, a mounting hole is provided on the rear net, and the dirt and blockage monitoring component can be movably connected in the mounting hole.

[0021] Beneficial effect: The installation hole can limit the dirty and blocked monitoring component to a certain extent, ensuring the connection stability between the dirty and blocked monitoring component and the rear network and the integrity of the rear network.

[0022] In an optional embodiment, in the axial direction of the mounting hole, the reset member and the position monitoring structure are respectively arranged on both sides of the dirt and blockage monitoring member.

[0023] Beneficial effect: The reset element and the position monitoring structure are respectively arranged on both sides of the dirt and blockage monitoring element, which can not only reasonably utilize the space but also avoid the mutual influence between the two.

[0024] In an optional embodiment, the mounting hole is a through hole, and an annular closed opening is protruding from the inner hole wall of the mounting hole. When the dirt and blockage monitoring component is in the first position, the outer periphery of the dirt and blockage monitoring component cooperates with the annular closed opening and seals the mounting hole; when the dirt and blockage monitoring component is in the second position, the dirt and blockage monitoring component is separated from the annular closed opening.

[0025] Beneficial effect: When the dirty blockage monitoring component is in the first position, the outer periphery of the dirty blockage monitoring component cooperates with the annular closed opening and blocks the mounting hole, which can ensure that the dirty blockage monitoring component can be better driven by the air supply airflow, so that it can more accurately judge whether it can overcome the reset force and move under the drive of the air supply airflow. When the dirty blockage monitoring component is in the second position, the dirty blockage monitoring component is separated from the annular closed opening, and the mounting hole can also be used for air intake to increase the air intake volume.

[0026] In an optional embodiment, the rear net further includes a mesh cover, the mesh cover is connected to one end of the mounting hole in the axial direction, and the reset member is connected between the mesh cover and the dirt and blockage monitoring member.

[0027] Beneficial effect: The setting of the mesh cover can protect and hide the reset part and the dirt and blockage monitoring part to ensure the aesthetics, and can also provide installation space for the reset part.

[0028] In an optional embodiment, the reset member includes a magnet and an iron sheet, either of which is fixedly connected to the dirt and blockage monitoring member, and the other of which is fixedly connected to the mesh cover.

[0029] Beneficial effect: The reset element includes a magnet and an iron sheet, and the magnetic attraction force between the magnet and the iron sheet provides a reset force opposite to the driving force of the air supply airflow for the dirty blockage monitoring element. When the driving force of the air supply airflow is greater than the magnetic attraction force between the magnet and the iron sheet, the dirty blockage monitoring element moves from the first position to the second position, indicating that the air permeability of the filter net is good; when the driving force of the air supply airflow is less than or equal to the magnetic attraction force between the magnet and the iron sheet, the dirty blockage monitoring element resets from the second position to the first position, or remains in the first position, indicating that the air permeability of the filter net is poor and needs to be replaced or cleaned.

[0030] In an optional embodiment, a first limit mounting groove is provided on the mesh cover, and the dirt and blockage monitoring component includes a monitoring disk and a first protruding column protruding from the monitoring disk, the first protruding column can be slidably disposed in the first limit mounting groove, and the reset component is connected between the first protruding column and the first limit mounting groove.

[0031] Beneficial effect: The sliding cooperation between the first protruding column and the first limiting mounting groove can guide and limit the movement of the dirty and blocked monitoring component, thereby ensuring the smooth movement of the dirty and blocked monitoring component.

[0032] In an optional embodiment, the rear net also includes a monitoring mounting position, which is connected to the mounting hole via a connecting rib, and the position monitoring structure includes a first circuit conduction contact and a second circuit conduction contact, the first circuit conduction contact is arranged on the monitoring mounting position, and the second circuit conduction contact is arranged on the dirt and blockage monitoring component.

[0033] Beneficial effect: When the dirt and blockage monitoring element moves from the first position to the second position, the first circuit conduction contact and the second circuit conduction contact are connected, and the controller can receive a conduction signal. At this time, it is considered that the air permeability of the filter is good and it can continue to be used. When the dirt and blockage monitoring element moves from the second position to the first position or remains in the first position, the first circuit conduction contact and the second circuit conduction contact are disconnected, and the controller receives a disconnection signal. At this time, it is considered that the air permeability of the filter is poor and needs to be replaced or cleaned.

[0034] In an optional embodiment, a second boss is protruding from the monitoring mounting position, and the first circuit conduction contact is arranged on the end of the second boss facing away from the monitoring mounting position; a second limit mounting groove is provided on the dirt and blockage monitoring component, the second boss can be slidably arranged in the second limit mounting groove, and the second circuit conduction contact is arranged at the bottom of the second limit mounting groove.

[0035] Beneficial effect: The sliding cooperation between the second protrusion and the second limiting mounting groove can guide and limit the movement of the dirty and blocked monitoring component, ensure the smooth movement of the dirty and blocked monitoring component, and also ensure the smooth connection and disconnection of the first conductive contact and the second circuit conductive contact.

[0036] In an optional embodiment, the air handling device is a fan.

[0037] In a second aspect, the present invention further provides a method for monitoring dirt and blockage of the above-mentioned air treatment equipment, comprising:

[0038] Controlling the rotation of the air supply blades;

[0039] Acquiring the position information of the dirt and blockage monitoring component monitored by the position monitoring structure;

[0040] Determining the degree of dirtiness and blockage of the filter screen by using the position information of the dirtiness and blockage monitoring component, and controlling the operating state of the air handling device according to the degree of dirtiness and blockage;

[0041] The position information of the dirt and blockage monitoring component includes a first position and a second position to which the component moves when driven by the air supply flow to overcome the restoring force of the restoring component.

[0042] In an optional embodiment, judging the degree of dirtiness and blockage of the filter screen by using the position information of the dirtiness and blockage monitoring component, and controlling the operating state of the air handling device according to the degree of dirtiness and blockage, includes:

[0043] If the position information is the first position, the air supply blades of the air handling device are controlled to stop rotating, and the user is reminded to replace or clean the filter in time;

[0044] If the position information is the second position, the air supply blades of the air handling device are controlled to continue rotating. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the related technologies, the drawings required for use in the specific embodiments or the related technical descriptions will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0046] Figure 1 A cross-sectional view from one perspective of an air handling device (the dirt and blockage monitoring component is in a first position) according to an embodiment of the present invention;

[0047] Figure 2 for Figure 1 A is a partial enlarged schematic diagram;

[0048] Figure 3 It is a cross-sectional view of an air handling device (the dirt and blockage monitoring component is in the second position) according to an embodiment of the present invention;

[0049] Figure 4 for Figure 3 A partial enlarged schematic diagram of B in the middle;

[0050] Figure 5 A cross-sectional view of an air treatment device (the dirt and blockage monitoring component is in a first position) from another perspective according to an embodiment of the present invention;

[0051] Figure 6 for Figure 5 A partial enlarged schematic diagram of C in the middle;

[0052] Figure 7 An exploded view of an air handling device according to an embodiment of the present invention;

[0053] Figure 8 A schematic diagram of an air duct body of an air handling device according to an embodiment of the present invention;

[0054] Fig. 9 A schematic diagram of a rear grille of an air handling device according to an embodiment of the present invention;

[0055] Fig.10 A schematic diagram of a mesh cover of an air treatment device according to an embodiment of the present invention;

[0056] Fig.11 A schematic diagram of a dirt and blockage monitoring component of an air handling device according to an embodiment of the present invention from one perspective;

[0057] Fig.12 A schematic diagram of another viewing angle of a dirt and blockage monitoring component of an air handling device according to an embodiment of the present invention;

[0058] Fig.13 A schematic flow chart of a method for monitoring dirt and blockage of air handling equipment according to an embodiment of the present invention.

[0059] Description of reference numerals:

[0060] 1. Air duct assembly; 11. Air duct body; 12. Rear net; 121. Mounting hole; 1211. Annular closed opening; 122. Net cover; 1221. First limit mounting groove; 123. Monitoring mounting position; 1231. Second convex column; 13. Front net; 14. Motor mounting seat; 15. Filter mounting position;

[0061] 2. Air supply blade; 21. Fan blade knob;

[0062] 3. filter screen; 31. filter screen body; 32. filter screen bracket;

[0063] 4. Dirt and blockage monitoring element; 41. Monitoring plate; 42. First convex column; 43. Second limit installation groove;

[0064] 5. reset member; 51. magnet; 52. iron sheet;

[0065] 6. Position monitoring structure; 61. First circuit conduction contact; 62. Second circuit conduction contact;

[0066] 7. Drive motor. DETAILED DESCRIPTION

[0067] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0068] Combine the following Figures 1 to 13 , describing an embodiment of the present invention.

[0069] According to an embodiment of the present invention, on the one hand, an air treatment device is provided, including an air duct assembly 1, an air supply blade 2, a filter 3, a dirt blockage monitoring component 4, a reset component 5 and a position monitoring structure 6; the air supply blade 2 is rotatably arranged in the air duct assembly 1; the filter 3 is arranged in the air duct assembly 1; the dirt blockage monitoring component 4 is movably connected to the air duct assembly 1; the reset component 5 is connected between the air duct assembly 1 and the dirt blockage monitoring component 4; the position monitoring structure 6 is arranged on the air duct assembly 1; wherein, when the air supply blade 2 rotates, under the drive of the supply air flow, the dirt blockage monitoring component 4 has a first state of moving from a first position to a second position by overcoming the reset force of the reset component 5, and a second state of maintaining or resetting to the first position; the position monitoring structure 6 is used to monitor the position information of the dirt blockage monitoring component 4, and the controller determines the degree of dirt blockage of the filter 3 through the position information of the dirt blockage monitoring component 4.

[0070] The setting of the filter 3 can filter out dust, lint and other impurities in the air in advance when the air handling device delivers air, so as to deliver clean and healthy air. When the air handling device is in working state, the air supply blades 2 rotate to generate an air supply airflow in the air duct assembly 1, and the air supply airflow can provide a driving force for the dirt blockage monitoring component 4 to move to the second position; when the driving force generated by the air supply airflow is greater than the reset force provided by the reset component 5, the dirt blockage monitoring component 4 moves from the first position to the second position, and the dirt blockage monitoring component 4 is in the first state. At this time, it is considered that the degree of dirt blockage of the filter 3 is low, and the air permeability of the filter 3 is good, which will not affect the air supply volume of the air handling device, and the air supply blades 2 can continue to rotate; when the driving force generated by the air supply airflow is less than or equal to When the reset force provided by the reset member 5 is applied, the dirty blockage monitoring member 4 is maintained at the first position or resets from the second position to the first position. The dirty blockage monitoring member 4 is in the second state. At this time, it is considered that the degree of dirty blockage of the filter 3 is high, and the air permeability of the filter 3 is poor, which affects the air supply volume of the air handling device. At this time, the air supply fan blade 2 is controlled to stop rotating, and the filter 3 is replaced or cleaned, which can avoid the filter 3 with a high degree of dirty blockage from affecting the air supply volume of the air handling device, avoid the increase in the power of the motor and the mainboard caused by the increase in the pressure of the input air volume, and prevent damage to the air handling device. The position information of the dirty blockage monitoring member 4 is obtained through the position monitoring structure 6, and the degree of dirty blockage of the filter 3 is judged by the position information of the dirty blockage monitoring member 4, and the air handling device is controlled according to the degree of dirty blockage of the filter 3, so as to prevent the dust, lint and other impurities attached to the filter 3 from affecting the air handling device, and avoid damage to the air handling device. Furthermore, since the movement of the dirtiness monitoring component 4 is directly related to the air supply volume of the air handling device, and the air supply volume of the air handling device is directly affected by the dirtiness of the filter 3, the position monitoring structure 6 can quickly and accurately obtain the dirtiness of the filter 3.

[0071] In a specific embodiment, the air treatment equipment also includes a driving motor 7, a motor mounting base 14 is provided inside the air duct assembly 1, the motor mounting base 14 is fixedly connected to the air duct wall of the air duct assembly 1 through reinforcing ribs, the driving motor 7 is fixedly connected in the motor mounting base 14, the air supply blade 2 is fixedly sleeved on the outer periphery of the power output shaft of the driving motor 7, and is fixed by a blade knob 21, and the air supply blade 2 rotates when driven by the driving motor 7.

[0072] In a specific embodiment, the air treatment device further includes a controller, which is in communication connection with the drive motor 7 and the position monitoring structure 6, and is used to receive the position information of the position monitoring structure 6, judge the degree of dirtiness and blockage of the filter 3 through the position information of the dirtiness and blockage monitoring component 4, and control the drive motor 7 according to the degree of dirtiness and blockage of the filter 3. The air treatment device further includes a reminder structure, which may include a sound reminder structure, and may also include a visual reminder structure such as a prompt light, or may include both a sound reminder structure and a visual reminder structure. The reminder structure may remind the user to replace or clean the filter 3 in time when the position information is in the first position and the air supply blade 2 stops rotating.

[0073] In one embodiment, the dirt and blockage monitoring component 4 can be movably arranged at a position close to the filter screen 3 .

[0074] Being arranged close to the filter 3, the change of the dirtiness and blockage degree of the filter 3 can be obtained more sensitively, so that the dirtiness and blockage monitoring component 4 can be moved more accurately, and the monitoring result of the position monitoring structure 6 can be more accurate.

[0075] In one embodiment, the air duct assembly 1 includes an air duct body 11 and a rear net 12 ; the air duct body 11 has an air inlet and an air outlet; the rear net 12 is connected to the air inlet, and the dirt and blockage monitoring component 4 is movably connected to the rear net 12 .

[0076] The dirt and blockage monitoring component 4 is arranged on the rear net 12, which can be hidden to ensure the aesthetics of the air outlet and prevent the dirt and blockage monitoring component 4 from blocking the air outlet.

[0077] In a specific embodiment, the air duct assembly 1 further comprises a front net 13, and the front net 13 is connected to the air outlet. Preferably, the air duct body 11 may be a cylindrical structure, and the air inlet and the air outlet are axially arranged at two ends of the air duct body 11.

[0078] In a specific embodiment, the rear net 12 is detachably connected to the air inlet, so that the rear net 12 can be easily removed to replace and clean the filter 3.

[0079] In a specific embodiment, a filter installation position 15 is provided in the air duct body 11 , and the filter 3 includes a filter bracket 32 ​​and a filter body 31 . The filter body 31 is detachably connected to the filter bracket 32 ​​, and is detachably connected to the filter installation position 15 through the filter bracket 32 ​​.

[0080] In a specific embodiment, the filter is arranged between the air supply blade 2 and the rear net 12. When the air supply blade 2 is in operation, the dirt and blockage monitoring element 4 can move toward the filter 3 under the negative pressure generated by the air supply flow.

[0081] As a convertible embodiment, the air duct assembly 1 may also include a front net 13, the dirt and blockage monitoring component 4 may be movably connected to the front net 13, and the filter 3 is located between the front net 13 and the rear net 12. When the air supply blade 2 is in operation, the dirt and blockage monitoring component 4 may move in a direction away from the filter 3 under the push of the air supply airflow.

[0082] As a convertible embodiment, the dirty blockage monitoring component 4 can also be arranged in the air duct body 11. When the dirty blockage monitoring component 4 is located downstream of the air supply blade 2, it moves under the push of the supply air flow; when the dirty blockage monitoring component 4 is located upstream of the air supply blade 2, it moves under the action of the negative pressure generated by the supply air flow.

[0083] In one embodiment, a mounting hole 121 is provided on the rear net 12 , and the dirt and blockage monitoring component 4 can be movably connected in the mounting hole 121 .

[0084] The mounting hole 121 can limit the dirty and blocked monitoring component 4 to a certain extent, thereby ensuring the connection stability between the dirty and blocked monitoring component 4 and the rear net 12 and the integrity of the rear net 12 .

[0085] In one embodiment, in the axial direction of the mounting hole 121 , the reset member 5 and the position monitoring structure 6 are respectively arranged on both sides of the dirt and blockage monitoring member 4 .

[0086] The reset element 5 and the position monitoring structure 6 are respectively arranged on both sides of the dirt and blockage monitoring element 4, which can not only reasonably utilize the space but also avoid the mutual influence between the two.

[0087] In one embodiment, the mounting hole 121 is a through hole, and an annular closed opening 1211 is protruded on the inner hole wall of the mounting hole 121. When the dirt blockage monitoring component 4 is in the first position, the outer periphery of the dirt blockage monitoring component 4 cooperates with the annular closed opening 1211 and blocks the mounting hole 121; when the dirt blockage monitoring component 4 is in the second position, the dirt blockage monitoring component 4 is separated from the annular closed opening 1211.

[0088] When the dirty blockage monitoring component 4 is in the first position, the outer periphery of the dirty blockage monitoring component 4 cooperates with the annular closed opening and blocks the mounting hole 121, which can ensure that the dirty blockage monitoring component 4 can be better driven by the air supply airflow, so that it can more accurately determine whether it can overcome the reset force and move under the drive of the air supply airflow. When the dirty blockage monitoring component 4 is in the second position, the dirty blockage monitoring component 4 is separated from the annular closed opening 1211, and the mounting hole 121 can also be used for air intake to increase the air intake volume.

[0089] In one embodiment, the rear net 12 further includes a net cover 122 , the net cover 122 is connected to one end of the mounting hole 121 in the axial direction, and the reset member 5 is connected between the net cover 122 and the dirt and blockage monitoring member 4 .

[0090] The setting of the mesh cover 122 can protect and hide the reset member 5 and the dirt and blockage monitoring member 4 to ensure aesthetics, and can also provide an installation space for the reset member 5.

[0091] In one embodiment, the reset member 5 includes a magnet 51 and an iron sheet 52 , either of which is fixedly connected to the dirt and blockage monitoring member 4 , and the other of which is fixedly connected to the mesh cover 122 .

[0092] The reset member 5 includes a magnet 51 and an iron sheet 52, and relies on the magnetic attraction force between the magnet 51 and the iron sheet 52 to provide a reset force opposite to the driving force of the air supply airflow for the dirty blockage monitoring member 4. When the driving force of the air supply airflow is greater than the magnetic attraction force between the magnet 51 and the iron sheet 52, the dirty blockage monitoring member 4 moves from the first position to the second position, indicating that the air permeability of the filter 3 is good; when the driving force of the air supply airflow is less than or equal to the magnetic attraction force between the magnet 51 and the iron sheet 52, the dirty blockage monitoring member 4 resets from the second position to the first position, or remains in the first position, indicating that the air permeability of the filter 3 is poor and needs to be replaced or cleaned.

[0093] In a specific embodiment, the magnet 51 is fixedly connected to the dirt and blockage monitoring component 4 , and the iron sheet 52 is fixedly connected to the mesh cover 122 .

[0094] Specifically, in another embodiment, the iron sheet 52 is fixedly connected to the dirt and blockage monitoring component 4 , and the magnet 51 is fixedly connected to the mesh cover 122 .

[0095] As a convertible implementation, the reset member 5 may also be an elastic member connected between the dirt and blockage monitoring member 4 and the mesh cover 122 .

[0096] In one embodiment, a first limiting mounting groove 1221 is provided on the mesh cover 122, the dirt and blockage monitoring component 4 includes a monitoring disk 41 and a first boss 42 protruding from the monitoring disk 41, the first boss 42 is slidably disposed in the first limiting mounting groove 1221, and the reset component 5 is connected between the first boss 42 and the first limiting mounting groove 1221.

[0097] The sliding cooperation between the first protrusion 42 and the first limiting installation groove 1221 can guide and limit the movement of the dirt and blockage monitoring component 4, ensure the smooth movement of the dirt and blockage monitoring component 4, and ensure that the reset force of the reset component 5 can always work.

[0098] In one embodiment, the rear net 12 also includes a monitoring mounting position 123, and the monitoring mounting position 123 is connected to the mounting hole 121 through a connecting rib. The position monitoring structure 6 includes a first circuit conduction contact 61 and a second circuit conduction contact 62. The first circuit conduction contact 61 is arranged on the monitoring mounting position 123, and the second circuit conduction contact 62 is arranged on the dirt and blockage monitoring component 4.

[0099] When the dirt and blockage monitoring element 4 moves from the first position to the second position, the first circuit conduction contact 61 and the second circuit conduction contact 62 are connected, and the controller can receive a conduction signal. At this time, it is considered that the air permeability of the filter 3 is good and can continue to be used. When the dirt and blockage monitoring element 4 moves from the second position to the first position or remains in the first position, the first circuit conduction contact 61 and the second circuit conduction contact 62 are disconnected, and the controller receives a disconnection signal. At this time, it is considered that the air permeability of the filter 3 is poor and needs to be replaced or cleaned.

[0100] As a changeable embodiment, the position detection structure may also be a position sensor.

[0101] In one embodiment, a second boss 1231 is protruding from the monitoring mounting position 123, and the first circuit conduction contact 61 is arranged on the end of the second boss 1231 facing away from the monitoring mounting position 123; a second limit mounting groove 43 is provided on the dirt and blockage monitoring component 4, the second boss 1231 can be slidably arranged in the second limit mounting groove 43, and the second circuit conduction contact is arranged at the bottom of the second limit mounting groove 43.

[0102] The sliding cooperation between the second protrusion 1231 and the second limiting mounting groove 43 can guide and limit the movement of the dirty and blocked monitoring component 4, thereby ensuring the smooth movement of the dirty and blocked monitoring component 4, and can also ensure the smooth connection and disconnection of the first conductive contact and the second circuit conductive contact.

[0103] In one embodiment, the air treatment device is a fan. Alternatively, the air treatment device may also be an air purifier.

[0104] According to an embodiment of the present invention, on the other hand, a method for monitoring dirt and blockage of the above-mentioned air treatment equipment is also provided, comprising:

[0105] Controlling the air supply blade 2 to rotate;

[0106] Acquiring the position information of the dirt and blockage monitoring component 4 monitored by the position monitoring structure 6;

[0107] The dirtiness and blockage degree of the filter screen 3 is determined by the position information of the dirtiness and blockage monitoring component 4, and the operation state of the air treatment device is controlled according to the dirtiness and blockage degree;

[0108] The position information of the dirt and blockage monitoring component 4 includes a first position and a second position to which the monitoring component 4 moves when driven by the air supply flow to overcome the restoring force of the restoring component 5 .

[0109] The setting of the filter 3 can filter out dust, lint and other impurities in the air in advance when the air handling device delivers air, so as to deliver clean and healthy air. When the air handling device is in working state, the air supply blades 2 rotate to generate an air supply airflow in the air duct assembly 1, and the air supply airflow can provide a driving force for the dirt blockage monitoring component 4 to move to the second position; when the driving force generated by the air supply airflow is greater than the reset force provided by the reset component 5, the dirt blockage monitoring component 4 moves from the first position to the second position, and the dirt blockage monitoring component 4 is in the first state. At this time, it is considered that the degree of dirt blockage of the filter 3 is low, and the air permeability of the filter 3 is good, which will not affect the air supply volume of the air handling device, and the air supply blades 2 can continue to rotate; when the driving force generated by the air supply airflow is less than or equal to When the reset force provided by the reset member 5 is applied, the dirty blockage monitoring member 4 is maintained at the first position or resets from the second position to the first position. The dirty blockage monitoring member 4 is in the second state. At this time, it is considered that the degree of dirty blockage of the filter 3 is high, and the air permeability of the filter 3 is poor, which affects the air supply volume of the air handling device. At this time, the air supply fan blade 2 is controlled to stop rotating, and the filter 3 is replaced or cleaned, which can avoid the filter 3 with a high degree of dirty blockage from affecting the air supply volume of the air handling device, avoid the increase in the power of the motor and the mainboard caused by the increase in the pressure of the input air volume, and prevent damage to the air handling device. The position information of the dirty blockage monitoring member 4 is obtained through the position monitoring structure 6, and the degree of dirty blockage of the filter 3 is judged by the position information of the dirty blockage monitoring member 4, and the air handling device is controlled according to the degree of dirty blockage of the filter 3, so as to prevent the dust, lint and other impurities attached to the filter 3 from affecting the air handling device, and avoid damage to the air handling device. Furthermore, since the movement of the dirtiness monitoring component 4 is directly related to the air supply volume of the air handling device, and the air supply volume of the air handling device is directly affected by the dirtiness of the filter 3, the position monitoring structure 6 can quickly and accurately obtain the dirtiness of the filter 3.

[0110] In one embodiment, the determining the degree of dirtiness and blockage of the filter screen 3 by using the position information of the dirtiness and blockage monitoring component 4, and controlling the operating state of the air treatment device according to the dirtiness and blockage degree, includes:

[0111] If the position information is the first position, the air supply blade 2 of the air handling device is controlled to stop rotating, and the user is reminded to replace or clean the filter 3 in time;

[0112] If the position information is the second position, the air supply blade 2 of the air treatment device is controlled to continue rotating.

[0113] In this embodiment, the working process of the air treatment device includes: starting the driving motor 7 to drive the air supply blade 2 to rotate, and the air outside the air treatment device enters the air duct body 11 through the mesh cover 122, the dirty blockage monitoring component 4, the rear mesh 12 and the filter 3 respectively, so that a wind field is generated inside the air duct body 11. Since the dirty blockage monitoring component 4 is in the first position before the air supply blade 2 is turned on, the outer periphery of the dirty blockage monitoring component 4 cooperates with the annular closed opening 1211 to block the mounting hole 121, and the wind field generated by the air supply airflow inside the air duct body 11 puts the dirty blockage monitoring component 4 in a negative pressure state. The suction generated by the negative pressure drives the dirty blockage monitoring component 4 to overcome the attraction between the magnet 51 and the iron sheet 52 and move from the first position to the second position, and can be maintained in the second position. At this time, the first circuit conduction contact 61 and the second circuit conduction contact 62 are turned on, and the controller receives the position information and believes that the filter 3 has good air permeability and the air treatment device can operate normally.

[0114] After the filter 3 has been used for a long time, a large amount of dust, lint and other impurities in the air adhere to its surface, the air penetration is low, and the inhaled air volume is weakened. At this time, the dirt and blockage monitoring component 4 is in the second position separated from the annular closed mouth 1211, and the negative pressure suction force generated is reduced. When the negative pressure suction force is less than the suction force between the magnet 51 and the iron sheet 52, the dirt and blockage monitoring component 4 is reset from the second position to the first position under the action of the magnetic suction force, or at the beginning of startup, the dirt and blockage monitoring component 4 remains in the first position without moving. At this time, the first circuit conduction contact 61 and the second circuit conduction contact 62 are disconnected, and the controller receives the position information and believes that the air permeability of the filter 3 is poor, so it controls the drive motor 7 to stop running, the air supply fan blade 2 to stop rotating, and sends a warning signal through the reminder structure to remind the user to replace the filter 3 in time or clean the filter 3 in time to ensure the normal operation of the air treatment equipment.

[0115] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the present application.

Claims

1. An air treatment device, characterized in that: include: Air duct assembly (1); An air supply blade (2) is rotatably arranged in the air duct assembly (1); A filter screen (3) is arranged in the air duct assembly (1); A dirt and blockage monitoring component (4) movably connected to the air duct component (1); A reset component (5) connected between the air duct assembly (1) and the dirt and blockage monitoring component (4); A position monitoring structure (6) is arranged on the air duct assembly (1); Wherein, when the air supply blade (2) rotates, driven by the air supply airflow, the dirt and blockage monitoring component (4) has a first state in which it moves from the first position to the second position by overcoming the reset force of the reset component (5), and a second state in which it remains or resets to the first position; the position monitoring structure (6) is used to monitor the position information of the dirt and blockage monitoring component (4), and the controller determines the degree of dirt and blockage of the filter screen (3) through the position information of the dirt and blockage monitoring component (4).

2. The air treatment equipment according to claim 1, characterized in that: The dirt and blockage monitoring component (4) is movably arranged at a position close to the filter screen (3).

3. The air treatment equipment according to claim 1 or 2, characterized in that: The air duct assembly (1) comprises: The air duct body (11) has an air inlet and an air outlet; The rear net (12) is connected to the air inlet, and the dirt and blockage monitoring component (4) is movably connected to the rear net (12).

4. The air treatment equipment according to claim 3, characterized in that: The rear net (12) is provided with a mounting hole (121), and the dirt and blockage monitoring component (4) is movably connected in the mounting hole (121).

5. The air treatment equipment according to claim 4, characterized in that: In the axial direction of the mounting hole (121), the reset element (5) and the position monitoring structure (6) are respectively arranged on both sides of the dirt and blockage monitoring element (4).

6. The air treatment equipment according to claim 4 or 5, characterized in that: The mounting hole (121) is a through hole, and an annular closed opening (1211) is protruding from the inner hole wall of the mounting hole (121); when the dirt and blockage monitoring component (4) is in the first position, the outer periphery of the dirt and blockage monitoring component (4) cooperates with the annular closed opening (1211) and blocks the mounting hole (121); when the dirt and blockage monitoring component (4) is in the second position, the dirt and blockage monitoring component (4) is separated from the annular closed opening (1211).

7. The air treatment equipment according to claim 4 or 5, characterized in that: The rear net (12) also includes a net cover (122), the net cover (122) being connected to one end of the mounting hole (121) in the axial direction, and the reset element (5) being connected between the net cover (122) and the dirt and blockage monitoring element (4).

8. The air treatment device according to claim 7, characterized in that: The reset element (5) comprises a magnet (51) and an iron sheet (52), either of the magnet (51) and the iron sheet (52) being fixedly connected to the dirt and blockage monitoring element (4), and the other of the magnet (51) and the iron sheet (52) being fixedly connected to the mesh cover (122); And / or, a first position-limiting mounting groove (1221) is provided on the mesh cover (122), the dirt and blockage monitoring component (4) comprises a monitoring plate (41) and a first protruding column (42) protruding from the monitoring plate (41), the first protruding column (42) is slidably disposed in the first position-limiting mounting groove (1221), and the reset component (5) is connected between the first protruding column (42) and the first position-limiting mounting groove (1221).

9. The air treatment equipment according to claim 4 or 5, characterized in that: The rear net (12) also includes a monitoring installation position (123), the monitoring installation position (123) being connected to the installation hole (121) via a connecting rib, the position monitoring structure (6) including a first circuit conduction contact (61) and a second circuit conduction contact (62), the first circuit conduction contact (61) being arranged on the monitoring installation position (123), and the second circuit conduction contact (62) being arranged on the dirt and blockage monitoring element (4).

10. The air treatment device according to claim 9, characterized in that: A second convex column (1231) is protruding from the monitoring installation position (123), and the first circuit conduction contact (61) is arranged on the end of the second convex column (1231) facing away from the monitoring installation position (123); a second limit installation groove (43) is provided on the dirt and blockage monitoring component (4), the second convex column (1231) is slidably arranged in the second limit installation groove (43), and the second circuit conduction contact (62) is arranged at the bottom of the second limit installation groove (43).

11. The air treatment equipment according to claim 1 or 2 or 4 or 5 or 8 or 10, characterized in that: The air handling device is a fan.

12. A method for monitoring dirt and blockage of an air handling device according to any one of claims 1 to 11, characterized in that: include: Controlling the air supply blades (2) to rotate; Acquiring position information of the dirt and blockage monitoring component (4) monitored by the position monitoring structure (6); Determining the degree of dirtiness and blockage of the filter screen (3) by means of the position information of the dirtiness and blockage monitoring component (4), and controlling the operating state of the air treatment device according to the dirtiness and blockage degree; The position information of the dirt and blockage monitoring component (4) includes a first position and a second position to which the component moves under the drive of the air supply airflow to overcome the reset force of the reset component (5).

13. The method for monitoring dirt and blockage of air handling equipment according to claim 12, characterized in that: The determining the degree of dirtiness and blockage of the filter screen (3) by means of the position information of the dirtiness and blockage monitoring element (4), and controlling the operating state of the air treatment device according to the dirtiness and blockage degree, comprises: If the position information is the first position, the air supply blades (2) of the air handling device are controlled to stop rotating, and the user is reminded to replace or clean the filter (3) in time; If the position information is the second position, the air supply blade (2) of the air treatment device is controlled to continue rotating.

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