Air treatment device and method for monitoring clogging thereof

Abstract

The application relates to the technical field of air treatment equipment, and discloses air treatment equipment and a dirty block monitoring method thereof. The air treatment equipment comprises an air duct assembly; a supply air fan blade is rotatably arranged in the air duct assembly; a filter screen is arranged in the air duct assembly; a dirty block monitoring piece is movably connected to the air duct assembly; a reset piece is connected between the air duct assembly and the dirty block monitoring piece; a position monitoring structure is arranged on the air duct assembly; when the supply air fan blade rotates, under the driving of a supply air flow, the dirty block monitoring piece has a first state of moving from a first position to a second position by overcoming the reset force of the reset piece, and a second state of keeping or resetting to the first position; the position monitoring structure is used for monitoring position information of the dirty block monitoring piece; and a controller judges the dirty block degree of the filter screen according to the position information of the dirty block monitoring piece. The air treatment equipment provided by the application can judge the dirty block degree of the filter screen and control the air treatment equipment according to the dirty block degree.

Description

Technical Field

[0001] This invention relates to the field of air handling equipment technology, and more specifically to air handling equipment and methods for monitoring dirt and clogging. Background Technology

[0002] As living standards improve, users are paying more and more attention to health and have higher and higher requirements for air quality, leading to a growing demand for fans with filters. Fans with filters typically have a filter in the airflow path. This filter removes dust, lint, and other impurities from the air before it blows, delivering clean and healthy air.

[0003] However, if the filter is not replaced or cleaned in time after long-term use, dust, lint and other impurities will accumulate on the filter, reducing its air permeability and affecting the fan's airflow. This will increase the pressure of the input airflow. If the fan runs under this condition for a long time, it will cause the motor and motherboard power to increase, and continuous operation can easily damage the fan. Summary of the Invention

[0004] In view of this, the present invention provides an air handling device and a method for monitoring dirt and clogging, in order to solve the problem that if a filter used for a long time is not replaced or cleaned in time, it will accumulate dust, lint and other impurities, causing filter problems.

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

[0006] Air duct components;

[0007] The air supply blades are rotatably mounted within the air duct assembly;

[0008] A filter screen is installed inside the air duct assembly;

[0009] A dirt / clogging monitoring device is movably connected to the air duct assembly;

[0010] A reset element is connected between the air duct assembly and the dirt / clogging monitoring element;

[0011] A position monitoring structure is installed on the air duct assembly;

[0012] When the air supply fan blades rotate, driven by the air supply airflow, the clogging detection device has a first state of moving from a first position to a second position against the reset force of the reset device, 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 clogging detection device, and the controller determines the degree of clogging of the filter screen through the position information of the clogging detection device.

[0013] Beneficial effects: The filter screen 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 unit is in operation, the air blower blades rotate, generating airflow within the duct assembly. This airflow provides the driving force for the clogging detection element to move to the second position. When the driving force generated by the airflow is greater than the reset force provided by the reset element, the clogging detection element moves from the first position to the second position. In the first state, the filter is considered to have low clogging levels and good air permeability, and will not affect the airflow of the air handling unit; the air blower blades can continue to rotate. When the driving force generated by the airflow is less than or equal to the reset force provided by the reset element, the clogging detection element remains in the first position or resets from the second position to the first position, and is in the second state. In this state, the filter is considered to have high clogging levels and poor air permeability, affecting the airflow of the air handling unit. At this point, the air blower blades are stopped, and the filter is replaced or cleaned. This prevents a highly clogged filter from affecting the airflow of the air handling unit, avoids increased motor and mainboard power due to increased input airflow pressure, and prevents damage to the air handling unit. The location of a dirt-clogging detection element is acquired through a position monitoring structure. This location information is used to determine the degree of dirt clogging in the filter, and the air handling unit is controlled accordingly to prevent dust, lint, and other impurities from affecting the air handling unit and causing damage. Furthermore, since the movement of the dirt-clogging detection element is directly related to the airflow of the air handling unit, which is directly affected by the degree of filter clogging, the position monitoring structure can quickly and accurately determine the degree of filter clogging.

[0014] In one alternative embodiment, the dirt monitoring element is movably disposed near the filter screen.

[0015] Beneficial effects: By placing it close to the filter, the changes in the degree of filter clogging can be detected more sensitively, allowing the clogging detection element to move more precisely and the monitoring results of the position monitoring structure to be more accurate.

[0016] In one alternative implementation, the duct assembly includes:

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

[0018] The rear screen is connected to the air inlet, and the dirt and clogging monitoring device is movably connected to the rear screen.

[0019] Beneficial effects: The dirt and clogging monitoring device is installed on the rear grille, which can be hidden to ensure the aesthetics of the air outlet and also prevent the dirt and clogging monitoring device from obstructing the air outlet.

[0020] In one alternative embodiment, the rear mesh is provided with mounting holes, and the dirt / clogging monitoring element is movably connected to the mounting holes.

[0021] Beneficial effects: The mounting holes can limit the movement of the dirt and clogging monitoring device, ensuring the stability of the connection between the dirt and clogging monitoring device and the back net and the integrity of the back net.

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

[0023] Beneficial effects: The reset component and the position monitoring structure are respectively set on both sides of the dirt blockage monitoring component, which can make reasonable use of space and avoid mutual interference between the two.

[0024] In one optional embodiment, the mounting hole is a through hole, and an annular closure protrudes from the inner wall of the mounting hole. When the dirt blockage monitoring component is in the first position, the outer periphery of the dirt blockage monitoring component cooperates with the annular closure to block the mounting hole; when the dirt blockage monitoring component is in the second position, the dirt blockage monitoring component separates from the annular closure.

[0025] Beneficial effects: When the dirt blockage monitoring component is in the first position, its outer periphery engages with the annular closed opening and seals the mounting hole. This ensures that the monitoring component is better driven by the airflow, allowing it to more accurately determine whether it can overcome the reset force and move under the drive of the airflow. When the monitoring component is in the second position, it separates from the annular closed opening, and the mounting hole can also be used for air intake, increasing the airflow volume.

[0026] In one alternative embodiment, the rear mesh further includes a mesh cover 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 monitoring element.

[0027] Beneficial effects: The mesh cover can protect and hide the reset component and the dirt monitoring component, ensuring aesthetics, and also provides installation space for the reset component.

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

[0029] Beneficial effects: The reset component consists of a magnet and an iron plate. The magnetic attraction between the magnet and the iron plate provides a reset force to the clogging detection component, opposite to the driving force of the airflow. When the driving force of the airflow is greater than the magnetic attraction between the magnet and the iron plate, the clogging detection component moves from the first position to the second position, indicating good airflow through the filter. When the driving force of the airflow is less than or equal to the magnetic attraction between the magnet and the iron plate, the clogging detection component resets from the second position to the first position, or remains stationary in the first position, indicating poor airflow through the filter, requiring replacement or cleaning.

[0030] In one optional embodiment, the mesh cover is provided with a first limiting installation groove, the dirt clogging monitoring component includes a monitoring disk and a first protrusion protruding from the monitoring disk, the first protrusion is slidably disposed in the first limiting installation groove, and the reset component is connected between the first protrusion and the first limiting installation groove.

[0031] Beneficial effects: The sliding fit between the first protrusion and the first limiting mounting groove can guide and limit the movement of the dirt blockage monitoring component, ensuring the smooth movement of the dirt blockage monitoring component.

[0032] In one optional embodiment, the rear network further includes a monitoring mounting position, which is connected to the mounting hole via a connecting rib. The position monitoring structure includes a first circuit contact and a second circuit contact, wherein the first circuit contact is disposed on the monitoring mounting position and the second circuit contact is disposed on the dirt / clogging monitoring component.

[0033] Beneficial effects: When the dirt clogging detection element moves from the first position to the second position, the first and second circuit contacts are connected, and the controller receives a connection signal. At this time, the filter is considered to have good air permeability and can continue to be used. When the dirt clogging detection element moves from the second position to the first position or remains in the first position, the first and second circuit contacts are disconnected, and the controller receives a disconnection signal. At this time, the filter is considered to have poor air permeability and needs to be replaced or cleaned.

[0034] In one optional embodiment, a second protruding post protrudes from the monitoring mounting position, and the first circuit contact is disposed on one end of the second protruding post facing away from the monitoring mounting position; the dirt and blockage monitoring component is provided with a second limiting mounting groove, the second protruding post is slidably disposed in the second limiting mounting groove, and the second circuit contact is disposed at the bottom of the second limiting mounting groove.

[0035] Beneficial effects: The sliding fit between the second protrusion and the second limiting mounting groove can guide and limit the movement of the dirt blockage monitoring component, ensuring the smooth movement of the dirt blockage monitoring component, and also ensuring the smooth connection and disconnection of the first conductive contact and the second circuit conductive contact.

[0036] In one alternative implementation, the air handling device is a fan.

[0037] Secondly, the present invention also provides a method for monitoring dirt and clogging in the above-mentioned air handling equipment, comprising:

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

[0039] Obtain the position information of the dirt and clogging monitoring device detected by the position monitoring structure;

[0040] The degree of dirt and clogging of the filter is determined by the location information of the dirt and clogging monitoring device, and the operating status of the air handling equipment is controlled according to the degree of dirt and clogging.

[0041] The location information of the dirt and blockage monitoring device includes a first position and a second position to which it moves under the drive of the airflow to overcome the reset force of the reset device.

[0042] In one optional implementation, determining the degree of clogging of the filter screen based on the location information of the clogging monitoring device, and controlling the operating status of the air handling equipment according to the degree of clogging, includes:

[0043] If the location information is the first location, the air handling unit's fan blades will stop rotating, and the user will be reminded to replace or clean the filter in a timely manner.

[0044] If the location information is the second location, then the air supply fan blades of the air handling equipment are controlled to continue rotating. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of the present invention, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0046] Figure 1 This is a cross-sectional view of an air handling device (with a dirt / clogging monitoring element in a first position) according to an embodiment of the present invention.

[0047] Figure 2 for Figure 1 A magnified view of part A in the diagram;

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

[0049] Figure 4 for Figure 3 A magnified view of part B in the diagram;

[0050] Figure 5 This is a cross-sectional view from another perspective of an air handling device (with the dirt and clogging monitoring element in the first position) according to an embodiment of the present invention;

[0051] Figure 6 for Figure 5 A magnified view of part of C;

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

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

[0054] Figure 9 This is a schematic diagram of the rear mesh of an air handling device according to an embodiment of the present invention;

[0055] Figure 10 This is a schematic diagram of a mesh cover for an air handling device according to an embodiment of the present invention;

[0056] Figure 11 This is a schematic diagram from one perspective of a dirt and clogging monitoring device for an air handling equipment according to an embodiment of the present invention;

[0057] Figure 12 This is a schematic diagram from another perspective of a dirt and clogging monitoring element of an air handling device according to an embodiment of the present invention;

[0058] Figure 13 A schematic flowchart of a method for monitoring dirt and clogging in an air handling device according to an embodiment of the present invention.

[0059] Explanation of reference numerals in the attached figures:

[0060] 1. Air duct assembly; 11. Air duct body; 12. Rear screen; 121. Mounting hole; 1211. Annular closure; 122. Screen cover; 1221. First limiting mounting groove; 123. Monitoring mounting position; 1231. Second protruding post; 13. Front screen; 14. Motor mounting base; 15. Filter mounting position;

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

[0062] 3. Filter screen; 31. Filter screen body; 32. Filter screen support;

[0063] 4. Dirt and blockage monitoring component; 41. Monitoring panel; 42. First protruding post; 43. Second limit mounting groove;

[0064] 5. Reset component; 51. Magnet; 52. Iron sheet;

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

[0066] 7. Drive motor. Detailed Implementation

[0067] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0068] The following is combined with Figures 1 to 13 The following describes embodiments of the present invention.

[0069] According to an embodiment of the present invention, an air handling device is provided, including an air duct assembly 1, an air supply fan blade 2, a filter screen 3, a clogging detection element 4, a reset element 5, and a position monitoring structure 6; the air supply fan blade 2 is rotatably disposed within the air duct assembly 1; the filter screen 3 is disposed within the air duct assembly 1; the clogging detection element 4 is movably connected to the air duct assembly 1; the reset element 5 is connected between the air duct assembly 1 and the clogging detection element 4; the position monitoring structure 6 is disposed on the air duct assembly 1; wherein, when the air supply fan blade 2 rotates, driven by the air supply airflow, the clogging detection element 4 has a first state of moving from a first position to a second position against the reset force of the reset element 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 clogging detection element 4, and the controller determines the degree of clogging of the filter screen 3 based on the position information of the clogging detection element 4.

[0070] The filter 3 is designed to pre-filter dust, lint, and other impurities in the air before the air handling unit delivers clean, healthy air. When the air handling unit is in operation, the air supply fan blade 2 rotates, generating airflow within the duct assembly 1. This airflow provides the driving force for the dirt / clogging detection element 4 to move to the second position. When the driving force generated by the airflow is greater than the reset force provided by the reset element 5, the dirt / clogging detection element 4 moves from the first position to the second position. In the first state, the filter 3 is considered to have low clogging levels and good air permeability, and will not affect the airflow of the air handling unit; the air supply fan blade 2 can continue to rotate. When the driving force generated by the airflow is less than or equal to... When the reset force provided by the reset component 5 is applied, the dirt clogging detection component 4 remains in the first position or resets from the second position to the first position. The dirt clogging detection component 4 is in the second state, at which point it is considered that the filter screen 3 is heavily clogged and has poor air permeability, affecting the airflow of the air handling equipment. At this time, the air supply fan blade 2 is stopped, and the filter screen 3 is replaced or cleaned. This prevents the heavily clogged filter screen 3 from affecting the airflow of the air handling equipment, avoids increased power consumption of the motor and main board due to increased input airflow pressure, and prevents damage to the air handling equipment. The position information of the dirt clogging detection component 4 is obtained through the position monitoring structure 6. The position information of the dirt clogging detection component 4 is used to determine the degree of dirt clogging of the filter screen 3, and the air handling equipment is controlled according to the degree of dirt clogging of the filter screen 3. This prevents the impact of dust, lint, and other impurities adhering to the filter screen 3 on the air handling equipment, thus avoiding damage. Furthermore, since the movement of the dirt and clogging monitoring component 4 is directly related to the air volume of the air handling equipment, and the air volume of the air handling equipment is directly affected by the degree of dirt and clogging of the filter 3, the position monitoring structure 6 can quickly and accurately obtain the degree of dirt and clogging of the filter 3.

[0071] In a specific embodiment, the air handling equipment also includes a drive motor 7. The air duct assembly 1 has a motor mounting seat 14 inside. The motor mounting seat 14 is fixedly connected to the air duct wall of the air duct assembly 1 through reinforcing ribs. The drive motor 7 is fixedly connected inside the motor mounting seat 14. The air supply fan blade 2 is fixedly sleeved on the outer periphery of the power output shaft of the drive motor 7 and fixed by the fan blade knob 21. The air supply fan blade 2 rotates under the drive of the drive motor 7.

[0072] In a specific embodiment, the air handling equipment further includes a controller, which is communicatively connected to both the drive motor 7 and the position monitoring structure 6. The controller receives position information from the position monitoring structure 6, determines the degree of clogging of the filter 3 based on the position information of the clogging monitoring element 4, and controls the drive motor 7 accordingly. The air handling equipment also includes a reminder structure, which may include an audible reminder structure, a visual reminder structure such as an indicator light, or both. The reminder structure can remind the user to replace or clean the filter 3 when the position information is in the first position and the air supply blades 2 have stopped rotating.

[0073] In one embodiment, the dirt and clogging monitoring element 4 is movably disposed near the filter screen 3.

[0074] By positioning the filter 3 closer to it, the changes in the degree of dirt and clogging of the filter 3 can be detected more sensitively, allowing the dirt and clogging detection element 4 to move more precisely, and the monitoring results of the position monitoring structure 6 to be more accurate.

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

[0076] The dirt and clogging monitoring component 4 is installed on the rear grille 12, which can be hidden to ensure the aesthetics of the air outlet, and also prevent the dirt and clogging monitoring component 4 from obstructing the air outlet.

[0077] In a specific embodiment, the air duct assembly 1 further includes a front mesh 13, which is connected to the air outlet. Preferably, the air duct body 11 can be a cylindrical structure, with the air inlet and air outlet arranged axially at both ends of the air duct body 11.

[0078] In a specific implementation, the rear screen 12 is detachably connected to the air inlet, which makes it easy to remove the rear screen 12 to replace and clean the filter screen 3.

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

[0080] In a specific embodiment, the filter screen is disposed between the air supply fan blade 2 and the rear screen 12. When the air supply fan blade 2 is running, the dirt and clogging monitoring device 4 can move toward the filter screen 3 under the negative pressure generated by the air supply airflow.

[0081] As an alternative implementation, the duct assembly 1 may also include a front screen 13, with a dirt / clogging monitoring element 4 movably connected to the front screen 13, and a filter 3 located between the front screen 13 and the rear screen 12. When the air supply fan blades 2 are running, the dirt / clogging monitoring element 4 can move away from the filter 3 under the push of the air supply airflow.

[0082] As an alternative implementation, the dirt blockage monitoring element 4 can also be installed inside the air duct body 11. When the dirt blockage monitoring element 4 is located downstream of the air supply fan blade 2, it moves under the push of the air supply airflow; when the dirt blockage monitoring element 4 is located upstream of the air supply fan blade 2, it moves under the negative pressure generated by the air supply airflow.

[0083] In one embodiment, the rear mesh 12 is provided with a mounting hole 121, and the dirt and blockage monitoring element 4 is movably connected to the mounting hole 121.

[0084] The mounting hole 121 can limit the dirt blockage monitoring component 4 to a certain extent, ensuring the connection stability between the dirt blockage 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 disposed on both sides of the dirt and blockage monitoring member 4.

[0086] The reset component 5 and the position monitoring structure 6 are respectively set on both sides of the dirt blockage monitoring component 4, which can make reasonable use of space and avoid mutual interference between the two.

[0087] In one embodiment, the mounting hole 121 is a through hole, and an annular closure 1211 protrudes from the inner 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 closure 1211 and seals the mounting hole 121. When the dirt blockage monitoring component 4 is in the second position, the dirt blockage monitoring component 4 separates from the annular closure 1211.

[0088] When the dirt blockage monitoring element 4 is in the first position, its outer periphery engages with the annular closed opening and seals the mounting hole 121. This ensures that the dirt blockage monitoring element 4 is better driven by the airflow, allowing it to more accurately determine whether it can overcome the reset force and move under the drive of the airflow. When the dirt blockage monitoring element 4 is in the second position, it separates from the annular closed opening 1211, and the mounting hole 121 can also be used for air intake, increasing the air intake volume.

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

[0090] The mesh cover 122 can both protect and hide the reset component 5 and the dirt and blockage monitoring component 4 to ensure aesthetics, and also provide installation space for the reset component 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 monitoring member 4, and the other of which is fixedly connected to the mesh cover 122.

[0092] The reset component 5 includes a magnet 51 and an iron plate 52. The magnetic attraction between the magnet 51 and the iron plate 52 provides a reset force to the clogging detection component 4, opposite to the driving force of the airflow. When the driving force of the airflow is greater than the magnetic attraction between the magnet 51 and the iron plate 52, the clogging detection component 4 moves from the first position to the second position, indicating good airflow permeability on the filter screen 3. When the driving force of the airflow is less than or equal to the magnetic attraction between the magnet 51 and the iron plate 52, the clogging detection component 4 resets from the second position to the first position, or remains stationary in the first position, indicating poor airflow permeability on the filter screen 3, requiring replacement or cleaning.

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

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

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

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

[0097] The sliding engagement between the first protrusion 42 and the first limiting mounting groove 1221 can guide and limit the movement of the dirt blockage monitoring component 4, ensuring the smooth movement of the dirt blockage monitoring component 4, and also ensuring that the reset force of the reset component 5 can always be effective.

[0098] In one embodiment, the rear mesh 12 further includes a monitoring mounting position 123, which is connected to the mounting hole 121 by a connecting rib. The position monitoring structure 6 includes a first circuit contact 61 and a second circuit contact 62. The first circuit contact 61 is disposed on the monitoring mounting position 123, and the second circuit contact 62 is disposed on the dirt and blockage monitoring component 4.

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

[0100] As a possible implementation, the position detection structure can also be a position sensor.

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

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

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

[0104] According to an embodiment of the present invention, in another aspect, a method for monitoring dirt and clogging in the above-mentioned air handling equipment is also provided, comprising:

[0105] Control the rotation of the air supply blade 2;

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

[0107] The degree of dirt and clogging of the filter screen 3 is determined by the location information of the dirt and clogging monitoring device 4, and the operating status of the air handling equipment is controlled according to the degree of dirt and clogging.

[0108] The location information of the dirt and blockage monitoring component 4 includes a first position and a second position to which it moves under the drive of the airflow to overcome the reset force of the reset component 5.

[0109] The filter 3 is designed to pre-filter dust, lint, and other impurities in the air before the air handling unit delivers clean, healthy air. When the air handling unit is in operation, the air supply fan blade 2 rotates, generating airflow within the duct assembly 1. This airflow provides the driving force for the dirt / clogging detection element 4 to move to the second position. When the driving force generated by the airflow is greater than the reset force provided by the reset element 5, the dirt / clogging detection element 4 moves from the first position to the second position. In the first state, the filter 3 is considered to have low clogging levels and good air permeability, and will not affect the airflow of the air handling unit; the air supply fan blade 2 can continue to rotate. When the driving force generated by the airflow is less than or equal to... When the reset force provided by the reset component 5 is applied, the dirt clogging detection component 4 remains in the first position or resets from the second position to the first position. The dirt clogging detection component 4 is in the second state, at which point it is considered that the filter screen 3 is heavily clogged and has poor air permeability, affecting the airflow of the air handling equipment. At this time, the air supply fan blade 2 is stopped, and the filter screen 3 is replaced or cleaned. This prevents the heavily clogged filter screen 3 from affecting the airflow of the air handling equipment, avoids increased power consumption of the motor and main board due to increased input airflow pressure, and prevents damage to the air handling equipment. The position information of the dirt clogging detection component 4 is obtained through the position monitoring structure 6. The position information of the dirt clogging detection component 4 is used to determine the degree of dirt clogging of the filter screen 3, and the air handling equipment is controlled according to the degree of dirt clogging of the filter screen 3. This prevents the impact of dust, lint, and other impurities adhering to the filter screen 3 on the air handling equipment, thus avoiding damage. Furthermore, since the movement of the dirt and clogging monitoring component 4 is directly related to the air volume of the air handling equipment, and the air volume of the air handling equipment is directly affected by the degree of dirt and clogging of the filter 3, the position monitoring structure 6 can quickly and accurately obtain the degree of dirt and clogging of the filter 3.

[0110] In one embodiment, determining the degree of clogging of the filter 3 based on the location information of the clogging monitoring element 4, and controlling the operating status of the air handling equipment based on the degree of clogging, includes:

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

[0112] If the location information is the second location, then the air supply fan blade 2 of the air handling equipment is controlled to continue rotating.

[0113] In this embodiment, the working process of the air handling equipment includes: starting the drive motor 7 to drive the air supply fan blade 2 to rotate; air from outside the air handling equipment enters the air duct body 11 through the mesh cover 122, the dirt clogging monitoring device 4, the rear mesh 12, and the filter screen 3, respectively, generating an airflow field inside the air duct body 11. Since the dirt clogging monitoring device 4 is in the first position before the air supply fan blade 2 is turned on, the outer periphery of the dirt clogging monitoring device 4 cooperates with the annular closed opening 1211 to seal the mounting hole 121. The airflow generated inside the air duct body 11 causes the dirt clogging monitoring device 4 to be in a negative pressure state. The suction force generated by the negative pressure drives the dirt clogging monitoring device 4 to overcome the attraction force between the magnet 51 and the iron sheet 52 and move from the first position to the second position, and can remain in the second position. At this time, the first circuit contact 61 and the second circuit contact 62 are connected. The controller receives the position information and considers that the filter screen 3 has good air permeability, and the air handling equipment can operate normally.

[0114] After prolonged use, the filter 3 accumulates a large amount of dust, lint, and other impurities from the air, resulting in low air penetration and reduced airflow. At this time, the clogging detection element 4 is in the second position separated from the annular closure 1211, reducing the negative pressure suction. When the negative pressure suction is less than the attraction between the magnet 51 and the iron sheet 52, the clogging detection element 4 returns to the first position from the second position under the action of magnetic attraction. Alternatively, at the beginning of startup, the clogging detection element 4 remains in the first position without moving. At this time, the first circuit contact 61 and the second circuit contact 62 disconnect. The controller receives the position information, considers the filter 3 to have poor air permeability, controls the drive motor 7 to stop running, and the air supply fan blades 2 to stop rotating. It also issues a warning signal through the reminder structure to remind the user to replace or clean the filter 3 in a timely manner to ensure the normal operation of the air handling equipment.

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

Claims

1. An air handling device, characterized in that, include: Air duct assembly (1); The air supply fan blade (2) is rotatably disposed within the air duct assembly (1); A filter screen (3) is disposed within the air duct assembly (1); A dirt and clogging monitoring device (4) is movably connected to the air duct assembly (1); A reset component (5) is connected between the air duct assembly (1) and the dirt and blockage monitoring component (4); A position monitoring structure (6) is installed on the air duct assembly (1); When the air supply fan blade (2) rotates, driven by the air supply airflow, the dirt clogging monitoring component (4) has a first state of moving from the first position to the second position against 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 clogging monitoring component (4), and the controller determines the degree of dirt clogging of the filter screen (3) through the position information of the dirt clogging monitoring component (4); The air duct assembly (1) includes: an air duct body (11) having an air inlet and an air outlet; a rear screen (12) connected to the air inlet, and a dirt blockage monitoring component (4) movably connected to the rear screen (12); the rear screen (12) is provided with a mounting hole (121), and the dirt blockage monitoring component (4) is movably connected to the mounting hole (121); in the axial direction of the mounting hole (121), the reset component (5) and the position monitoring structure (6) are respectively disposed on both sides of the dirt blockage monitoring component (4).

2. The air handling equipment according to claim 1, characterized in that, The dirt and clogging monitoring element (4) is movably disposed near the filter screen (3).

3. The air handling equipment according to claim 1 or 2, characterized in that, The mounting hole (121) is a through hole, and an annular closure (1211) protrudes from the inner 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 closure (1211) and seals the mounting hole (121). When the dirt blockage monitoring component (4) is in the second position, the dirt blockage monitoring component (4) separates from the annular closure (1211).

4. The air handling equipment according to claim 1 or 2, characterized in that, The rear net (12) also includes a mesh cover (122), which is connected to one end of the mounting hole (121) in the axial direction, and the reset member (5) is connected between the mesh cover (122) and the dirt monitoring member (4).

5. The air handling equipment according to claim 4, characterized in that, The reset component (5) includes a magnet (51) and an iron sheet (52), either of which is fixedly connected to the dirt and blockage monitoring component (4), and the other of which is fixedly connected to the mesh cover (122); And / or, the mesh cover (122) is provided with a first limiting installation groove (1221), the dirt blockage monitoring component (4) includes a monitoring disk (41) and a first protrusion (42) protruding from the monitoring disk (41), the first protrusion (42) is slidably disposed in the first limiting installation groove (1221), and the reset component (5) is connected between the first protrusion (42) and the first limiting installation groove (1221).

6. The air handling equipment according to claim 1 or 2, characterized in that, The rear net (12) also includes a monitoring mounting position (123), which is connected to the mounting hole (121) by a connecting rib. The position monitoring structure (6) includes a first circuit contact (61) and a second circuit contact (62). The first circuit contact (61) is located on the monitoring mounting position (123), and the second circuit contact (62) is located on the dirt and blockage monitoring component (4).

7. The air handling equipment according to claim 6, characterized in that, The monitoring mounting position (123) has a second protruding post (1231) protruding out, and the first circuit contact (61) is located on the second protruding post (1231) at one end facing away from the monitoring mounting position (123); the dirt blockage monitoring component (4) has a second limiting mounting groove (43), the second protruding post (1231) is slidably located in the second limiting mounting groove (43), and the second circuit contact (62) is located at the bottom of the second limiting mounting groove (43).

8. The air handling apparatus according to any one of claims 1, 2, 5, or 7, characterized in that, The air handling equipment is a fan.

9. A method for monitoring dirt and clogging in an air handling equipment as described in any one of claims 1 to 8, characterized in that, include: Control the rotation of the air supply blades (2); Obtain the position information of the dirt and blockage monitoring component (4) monitored by the position monitoring structure (6); The degree of dirt and clogging of the filter screen (3) is determined by the location information of the dirt and clogging monitoring device (4), and the operating status of the air handling equipment is controlled according to the degree of dirt and clogging. The location information of the dirt and blockage monitoring device (4) includes a first position and a second position to which it moves under the drive of the airflow to overcome the reset force of the reset device (5).

10. The method for monitoring dirt and clogging in an air handling equipment according to claim 9, characterized in that, The step of determining the degree of dirt clogging of the filter screen (3) based on the location information of the dirt clogging monitoring device (4) and controlling the operating status of the air handling equipment according to the degree of dirt clogging includes: If the location information is the first location, then control the air supply fan blades (2) of the air handling equipment to stop rotating, and remind the user to replace or clean the filter screen (3) in time. If the location information is the second location, then the air supply fan (2) of the air handling equipment is controlled to continue rotating.

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