Blower facility

Abstract

The utility model relates to an air supply device which comprises an air supply assembly, a fan assembly and a fan cover, the air supply assembly comprises an air duct, a filter screen and air supply fan blades, the air supply fan blades are rotatably arranged in the air duct, and the filter screen is fixed in the air duct; the detection assembly is rotatably arranged in the air duct and can obtain rotation parameters of the detection assembly; wherein under the condition that the air supply fan blades rotate, the detection assembly is driven by an air field in the air duct to rotate and obtains rotation parameters of the detection assembly, and the filth blockage degree of the filter screen is judged according to the rotation parameters of the detection assembly. According to the air supply equipment, under the condition that the air supply fan blades rotate, the detection assembly is driven to passively rotate, the filth blockage degree of the filter screen can be rapidly judged through the rotation parameters of the detection assembly, operation is convenient and fast, the structural design is reasonable, a user can conveniently replace the filter screen in time, and the situation that the air volume is affected due to serious filth blockage of the filter screen is improved.

Description

Technical Field

[0001] The present application relates to the technical field of air supply equipment, and in particular to an air supply equipment. Background Art

[0002] With the improvement of life quality, people pay more and more attention to health and have higher and higher requirements for air quality. The demand for air supply equipment with filtering effect (such as fans) is increasing. Air supply equipment with filtering effect can filter out dust, lint and other impurities in the air in advance when it blows out, and delivers clean and healthy air, which is deeply loved by consumers.

[0003] Air supply equipment with filtering effect is equipped with filter nets. Due to long-term use of the filter nets, if they are not replaced in time, dust, lint and other impurities will adhere to the filter nets, which will reduce the air permeability and affect the air volume of the fan, resulting in a greater pressure on the input air volume. If the fan runs in this state for a long time, the power of the motor and motherboard will increase, and continuous operation will damage the fan. Therefore, how to let users replace the filter nets in time is an urgent problem to be solved. Utility Model Content

[0004] Based on this, it is necessary to provide an air supply device for the problem of how to enable a user to replace the filter screen of the air supply device in time.

[0005] An air supply device, comprising:

[0006] An air supply component, comprising an air duct, a filter screen and an air supply blade, wherein the air supply blade is rotatably arranged in the air duct, and the filter screen is fixed in the air duct;

[0007] A detection component, rotatably disposed in the air duct and capable of obtaining its own rotation parameters;

[0008] Wherein, when the air supply blades rotate, the detection component is driven to rotate by the wind field in the air duct and obtains its own rotation parameters, and the degree of dirtiness and blockage of the filter is determined by the rotation parameters of the detection component.

[0009] The above-mentioned air supply equipment drives the detection component to passively rotate when the air supply blades rotate. The degree of dirtiness and blockage of the filter can be quickly judged through the rotation parameters of the detection component. The operation is convenient and the structural design is reasonable, which is convenient for users to replace the filter in time and improve the situation where the air volume is affected by severe dirtiness and blockage of the filter.

[0010] In one of the embodiments, the air duct has an air inlet and an air outlet relatively arranged along its axial direction, the filter is located on a side of the air duct close to the air inlet, and the air supply blades are located on a side of the air duct close to the air outlet.

[0011] In one embodiment, the filter screen and the air supply blades are distributed side by side along the axial direction of the air duct.

[0012] In one of the embodiments, at least one detection component is provided on a side of the filter screen facing away from the air inlet.

[0013] In one of the embodiments, a bracket is provided in the air duct, the bracket is located on a side of the filter screen away from the air inlet, and the detection component is rotatably provided on the bracket.

[0014] In one embodiment, the detection component includes a measuring element and a detection blade. The detection blade is rotatably disposed on the bracket. The measuring element is disposed in the detection blade and is used to obtain rotation parameters of the detection blade.

[0015] In one of the embodiments, the air supply assembly further includes a driving member, which is mounted on the bracket and connected to the air supply blades, and the driving member is used to drive the air supply blades to rotate.

[0016] In one embodiment, the central axis of the detection blade is arranged to overlap with the central axis of the air supply blade.

[0017] In one of the embodiments, at least one detection component is provided on a side of the filter screen facing the air inlet.

[0018] In one of the embodiments, the air supply assembly further includes an air inlet grille and an air outlet grille, the air inlet grille is arranged at the air inlet, and the air outlet grille is arranged at the air outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of an air supply device in one embodiment.

[0020] Figure 2 for Figure 1 A partial enlarged view of point A of the air supply equipment shown.

[0021] Figure 3 for Figure 1 Exploded view of the air supply equipment shown.

[0022] Figure 4 for Figure 1 Schematic diagram of the air duct in the air supply device shown.

[0023] Figure 5 for Figure 1 Schematic diagram of the detection components in the air supply device shown.

[0024] Figure 6 for Figure 5 A partial enlarged view of point B of the detection component shown.

[0025] Figure 7 The present invention is a flow chart of a method for detecting dirt and blockage of air supply equipment in one embodiment.

[0026] Figure 8 for Figure 7 The schematic diagram of step S40 in the method for detecting dirt and blockage of an air supply device is shown.

[0027] Reference numerals:

[0028] 100, air supply assembly; 110, air duct; 111, air inlet; 112, air outlet; 113, bracket; 113a, main body; 113b, connecting portion; 113c, first mounting slot; 113d, second mounting slot; 120, filter; 130, air supply blade; 140, driving member; 150, air inlet grille; 160, air outlet grille; 200, detection assembly; 210, measuring element; 220, detection blade. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0030] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] In this application, unless otherwise clearly specified and limited, the terms "initial", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0035] With the improvement of life quality, people pay more and more attention to health and have higher and higher requirements for air quality. The demand for air supply equipment with filtering effect (such as fans) is increasing. Air supply equipment with filtering effect can filter out dust, lint and other impurities in the air in advance when it blows out, and delivers clean and healthy air, which is deeply loved by consumers.

[0036] Air supply equipment with filtering effect is equipped with filter nets. Due to long-term use of the filter nets, if they are not replaced in time, dust, lint and other impurities will adhere to the filter nets, which will reduce the air permeability and affect the air volume of the fan, resulting in a greater pressure on the input air volume. If the fan runs in this state for a long time, the power of the motor and motherboard will increase, and continuous operation will damage the fan. Therefore, how to let users replace the filter nets in time is an urgent problem to be solved.

[0037] Based on the above considerations, the present application designs an air supply device and a method for detecting dirt and blockage thereof. In the air supply device, when the air supply blades rotate, the detection component is driven to rotate passively. The degree of dirt and blockage of the filter can be quickly judged through the rotation parameters of the detection component. The operation is convenient and the structural design is reasonable, which is convenient for users to replace the filter in time and improve the situation where the air volume is affected by severe dirt and blockage of the filter.

[0038] Please refer to Figure 1 and Figure 2 The air supply device in one embodiment includes an air supply component 100 and a detection component 200. The air supply component 100 includes an air duct 110, a filter 120 and an air supply blade 130. The air supply blade 130 is rotatably disposed in the air duct 110. The filter 120 is fixed in the air duct 110. The detection component 200 is rotatably disposed in the air duct 110 and can obtain its own rotation parameters.

[0039] When the air supply blades 130 rotate, the detection component 200 is driven by the wind field in the air duct 110 to rotate and obtain its own rotation parameters, and the degree of dirtiness and blockage of the filter 120 is determined by the rotation parameters of the detection component 200 .

[0040] It should be noted that by setting the filter 120 in the air duct 110, dust, lint and other impurities in the air can be filtered out in advance before the air supply device discharges air, so as to deliver clean air to the user. When the air supply device is in working state, the air supply blades 130 rotate and generate a wind field in the air duct 110. The wind field generated in the air duct 110 will penetrate the filter 120 and drive the detection component 200 to passively rotate. The degree of dirt and blockage of the filter 120 will affect its air permeability, thereby affecting the rotation parameters of the detection component 200.

[0041] For example, when the filter 120 is not seriously clogged, the filter 120 has strong air permeability, and most of the wind field generated in the air duct 110 will penetrate the filter 120 and drive the detection component 200 to passively rotate. At this time, the rotation speed of the detection component 200 is relatively high; when the filter 120 is seriously clogged, dust, lint and other impurities adhere to the filter 120 to reduce its air permeability, and the wind field generated in the air duct 110 is difficult to penetrate the filter 120. At this time, the rotation speed of the detection component 200 is relatively low.

[0042] The above-mentioned air supply device drives the detection component 200 to rotate passively when the air supply blade 130 rotates. The degree of dirtiness and blockage of the filter 120 can be quickly judged through the rotation parameters of the detection component 200. The operation is convenient and the structural design is reasonable, which is convenient for the user to replace the filter 120 in time and improve the situation where the air volume is affected by the serious dirtiness and blockage of the filter 120.

[0043] In this embodiment, the filter 120 is a component for filtering airflow. The filter 120 is provided with a plurality of filter holes. The shape and aperture of each filter hole are designed according to actual needs, and the shape and aperture of each filter hole are not specifically limited here.

[0044] In this embodiment, the filter 120 and the air duct 110 are split structures, and the filter 120 and the air duct 110 are detachably connected. For example, the filter 120 and the air duct 110 can be fixed by plugging, snapping, etc., to facilitate replacement and maintenance of the filter 120.

[0045] In this embodiment, the air duct 110 is a hollow structure to facilitate the airflow in the air duct 110. The air duct 110 may be in a hollow cylindrical shape, a prism shape, or other irregular shapes, and accordingly, the filter 120 is in a circular shape, a square shape, or other irregular shapes, so that the filter 120 is compatible with the air duct 110. Here, the shapes of the air duct 110 and the filter 120 are not specifically limited.

[0046] In this embodiment, the filter screen 120 and the air supply blades 130 are spaced apart to facilitate air supply. In other embodiments, the filter screen 120 and the air supply blades 130 can also be closely distributed.

[0047] Specifically, please refer to Figure 2 and Figure 1 The air duct 110 has an air inlet 111 and an air outlet 112 which are arranged opposite to each other along its axial direction. The filter 120 is located on a side of the air duct 110 close to the air inlet 111 , and the air supply blade 130 is located on a side of the air duct 110 close to the air outlet 112 .

[0048] It should be noted that the axial direction of the air duct 110 is Figure 2 Through the above arrangement, by shortening the distance between the filter 120 and the air inlet 111 , dust, lint and other impurities in the air can be filtered out in time after the air enters the air duct 110 , and the arrangement of the filter 120 will not hinder the rotation of the air supply blades 130 .

[0049] In this embodiment, the cross-sectional areas of the air inlet 111 and the air outlet 112 are equal to facilitate uniform air intake and air discharge. In other embodiments, the cross-sectional areas of the air inlet 111 and the air outlet 112 may also be unequal.

[0050] In this embodiment, the air inlet 111 and the air outlet 112 have the same shape, for example, they can be circular, square or other irregular shapes. In other embodiments, the air inlet 111 and the air outlet 112 can also have different shapes.

[0051] For details about this embodiment, please refer to Figure 1The filter screen 120 and the air supply blades 130 are distributed side by side along the axial direction of the air duct 110 .

[0052] It is understandable that, in the axial direction of the air duct 110 , the filter 120 and the air supply blades 130 are spaced apart and distributed side by side, which is beneficial to improving the space utilization rate in the axial direction of the air duct 110 while not hindering the air inlet and outlet of the air duct 110 .

[0053] In this embodiment, the central axis of the filter 120 overlaps with the central axis of the air supply blade 130, that is, the central axes of the two are coaxial, which is conducive to uniform air outlet and air intake.

[0054] For specific embodiments, please refer to Figure 1 At least one detection component 200 is provided on a side of the filter 120 away from the air inlet 111 .

[0055] It should be noted that since the air supply blades 130 rotate and generate a wind field in the air duct 110, by arranging the detection component 200 on the side of the filter 120 away from the air inlet 111, the wind field generated in the air duct 110 will penetrate the filter 120 and drive the detection component 200 to passively rotate, and the degree of dirtiness and blockage of the filter 120 can be quickly judged through the rotation parameters of the detection component 200.

[0056] In this embodiment, when at least two detection assemblies 200 are arranged on the side of the filter 120 away from the air inlet 111, each detection assembly 200 can be distributed at different positions to facilitate comparison of the rotation parameters of each detection assembly 200, thereby improving the accuracy of the detection result. Optionally, each detection assembly 200 is of the same type to facilitate batch assembly and control.

[0057] For details about this embodiment, please refer to Figure 1 A bracket 113 is provided in the air duct 110 . The bracket 113 is located at a side of the filter 120 away from the air inlet 111 . The detection component 200 is rotatably disposed on the bracket 113 .

[0058] Here, reference Figure 4 The bracket 113 includes a main body 113a and a plurality of connecting parts 113b, one end of each connecting part 113b is fixed to the main body 113a, and the other end of each connecting part 113b is fixed to the inner wall of the air duct 110, and each connecting part 113b is spaced apart with the main body 113a as the center.

[0059] Specifically, refer to Figure 4 A first mounting groove 113c is provided in the middle of the main body 113a. The first mounting groove 113c has an opening. The opening of the first mounting groove 113c faces the side where the filter screen 120 is located. One end of the detection component 200 is rotatably inserted into the first mounting groove 113c.

[0060] In this embodiment, the main body 113a and the connecting parts 113b are an integrated structure. For example, the main body 113a and the connecting parts 113b can be integrally formed by injection molding, casting, etc., with good integrity and high mechanical strength.

[0061] In this embodiment, one end of the detection component 200 is circular, and the opening of the first installation groove 113c is circular, so that the first installation groove 113c is compatible with the detection component 200. In other embodiments, one end of the detection component 200 and the opening of the first installation groove 113c can also be other shapes as long as the two can be compatible.

[0062] In this embodiment, the bracket 113 and the air duct 110 are split structures, and the bracket 113 and the air duct 110 can be detachably connected, for example, the bracket 113 and the air duct 110 are fixed by means of snap connection, plug connection, etc.; or, the bracket 113 and the air duct 110 can be non-detachably connected, for example, the bracket 113 and the air duct 110 can be fixed by means of riveting, casting, etc. Here, the connection method between the bracket 113 and the air duct 110 is not limited.

[0063] Please refer to Figure 5 and Figure 6 The detection assembly 200 includes a measuring element 210 and a detection blade 220 . The detection blade 220 is rotatably disposed on the bracket 113 . The measuring element 210 is disposed in the detection blade 220 and is used to obtain the rotation parameters of the detection blade 220 .

[0064] It is understandable that when the air supply device is in working condition, the air supply blades 130 rotate and generate a wind field in the air duct 110. The wind field generated in the air duct 110 will penetrate the filter 120 and drive the detection blades 220 to passively rotate. The rotation parameters of the detection blades 220 can be obtained through the measuring element 210, so as to quickly judge the degree of dirtiness and blockage of the filter 120 by detecting the rotation parameters of the blades 220.

[0065] In this embodiment, the measuring element 210 may be a sensor, through which rotation parameters such as the rotation speed and voltage of the detection blade 220 can be obtained. Alternatively, the measuring element 210 may also be a photoelectric detection switch or other types of detection elements, as long as the rotation parameters of the detection blade 220 can be obtained.

[0066] In this embodiment, the number of measuring elements 210 is not limited to one. When the number of measuring elements 210 is at least two, each measuring element 210 can be evenly distributed on the detection blade 220 to obtain the rotation parameters of the detection blade 220 at different positions, so as to improve the accuracy of the detection result.

[0067] For further information, please refer to Figure 1 The air supply assembly 100 further includes a driving member 140 , which is mounted on the bracket 113 and connected to the air supply blades 130 , and is used to drive the air supply blades 130 to rotate.

[0068] Specifically, in conjunction with reference Figure 4 A second mounting groove 113d is provided in the middle of the main body 113a. The second mounting groove 113d has an opening. The opening of the second mounting groove 113d faces the side where the air outlet 112 is located. One end of the driving member 140 is fixed in the first mounting groove 113c, and the other end of the driving member 140 is fixedly connected to the air supply blade 130.

[0069] In this embodiment, one end of the driving member 140 is circular, and the opening of the second mounting groove 113d is circular, so that the second mounting groove 113d is adapted to the one end of the driving member 140. In other embodiments, the one end of the driving member 140 and the opening of the second mounting groove 113d can also be other shapes, as long as the two can be adapted.

[0070] In this embodiment, the driving member 140 is a motor, which includes a body and a motor shaft connected to the body, the body is fixed in the first mounting groove 113c, the motor shaft is fixedly connected to the air supply fan blade 130, and the motor type can be a servo motor, a stepper motor or other types, and the type of the motor is not specifically limited here. In other embodiments, the driving member 140 can also have other driving structures of the power output shaft.

[0071] For further information, please refer to Figure 1 The central axis of the detection blade 220 is arranged to overlap with the central axis of the air supply blade 130 .

[0072] It should be noted that the detection blade 220 and the air supply blade 130 are coaxially arranged, which is convenient for the installation of the detection blade 220 and the air supply blade 130 and is also beneficial to the uniformity of air intake and air outlet.

[0073] In this embodiment, the detection blade 220 and the air supply blade 130 may be forward-bent, backward-bent or divergent, and the types of the detection blade 220 and the air supply blade 130 are not specifically limited herein.

[0074] For more specific examples, please refer to Figure 1 At least one detection component 200 is disposed on a side of the filter 120 facing the air inlet 111 .

[0075] It should be noted that since the air supply blades 130 rotate and generate a wind field in the air duct 110, by arranging the detection component 200 on the side of the filter 120 facing the air inlet 111, the size of the wind field before flowing through the filter 120 can be quickly determined by the rotation parameters of the detection component 200, which is convenient for comparison with the size of the wind field after flowing through the filter 120.

[0076] In this embodiment, when at least two detection assemblies 200 are arranged on the side of the filter 120 facing the air inlet 111, each detection assembly 200 can be distributed at different positions to facilitate comparison of the rotation parameters of each detection assembly 200, thereby improving the accuracy of the detection result. Optionally, each detection assembly 200 is of the same type to facilitate batch assembly and control.

[0077] Please refer to Figure 1 The air supply assembly 100 further includes an air inlet grille 150 and an air outlet grille 160 . The air inlet grille 150 is disposed at the air inlet 111 , and the air outlet grille 160 is disposed at the air outlet 112 .

[0078] Specifically, the air inlet grille 150 is provided with a plurality of air inlet grille 150 holes, and the air outlet grille 160 is provided with a plurality of air outlet grille 160 holes. When the air supply device is in working state, the air supply blades 130 rotate and generate a wind field in the air duct 110, and the air outside the air duct 110 is sucked into the air duct 110 through the air inlet grille 150 holes and the filter 120, and a wind field is generated inside the air duct 110, driving the detection component 200 to passively rotate.

[0079] In this embodiment, the air inlet grille 150 and the air duct 110 are split structures, and the air inlet grille 150 and the air duct 110 are detachably connected, for example, the air inlet grille 150 and the air duct 110 can be fixed by plugging, snapping, etc., so as to facilitate the replacement and maintenance of the air inlet grille 150. In other embodiments, the air inlet grille 150 and the air duct 110 can also be an integrated structure.

[0080] In this embodiment, the air duct 110 may be in a hollow cylindrical shape, a prism shape, or other irregular shapes, and correspondingly, the air inlet grille 150 may be in a circular shape, a square shape, or other irregular shapes, so that the air inlet grille 150 is compatible with the air duct 110. Here, the shapes of the air duct 110 and the air inlet grille 150 are not specifically limited.

[0081] In this embodiment, the air outlet grille 160 and the air duct 110 are split structures, and the air outlet grille 160 and the air duct 110 are detachably connected, for example, the air outlet grille 160 and the air duct 110 can be fixed by plugging, snapping, etc., so as to facilitate the replacement and maintenance of the air outlet grille 160. In other embodiments, the air outlet grille 160 and the air duct 110 can also be an integrated structure.

[0082] In this embodiment, the air duct 110 may be in a hollow cylindrical shape, a prism shape, or other irregular shapes, and correspondingly, the air outlet grille 160 may be in a circular shape, a square shape, or other irregular shapes, so that the air outlet grille 160 is compatible with the air duct 110. Here, the shapes of the air duct 110 and the air outlet grille 160 are not specifically limited.

[0083] Please refer to Figure 7 In one embodiment, a method for detecting dirt and blockage of an air supply device comprises the following steps:

[0084] S10, controlling the air supply blades 130 to rotate and generating a wind field in the air duct 110;

[0085] S20, the detection assembly 200 is driven to rotate by the wind field in the air duct 110;

[0086] S30 , the detection component 200 obtains its own rotation parameters, and determines the degree of dirtiness and blockage of the filter 120 through the rotation parameters of the detection component 200 .

[0087] It should be noted that when the air supply device is in working condition, the air supply blades 130 are controlled to rotate and generate a wind field in the air duct 110. The wind field generated in the air duct 110 will penetrate the filter 120 and drive the detection component 200 to passively rotate. The degree of dirtiness of the filter 120 will affect its air permeability, thereby affecting the rotation parameters of the detection component 200.

[0088] The above-mentioned method for detecting dirt and blockage of the air supply equipment drives the detection component 200 to rotate passively when the air supply fan blade 130 rotates. The degree of dirt and blockage of the filter 120 can be quickly determined by the rotation parameters of the detection component 200. The operation is convenient and the structural design is reasonable, which is convenient for the user to replace the filter 120 in time and improve the situation where the air volume is affected by severe dirt and blockage of the filter 120.

[0089] Specifically, please refer to Figure 8 After the step of obtaining the rotation parameters of the detection component 200 and judging the degree of dirtiness and blockage of the filter screen 120 by the rotation parameters of the detection component 200, the following steps are also included:

[0090] S40, comparing the rotation parameter of the detection component 200 with the set value; when the rotation parameter of the detection component 200 is greater than or equal to the set value, the detection component 200 feeds back a first signal; when the rotation parameter of the detection component 200 is less than the set value, the detection component 200 feeds back a second signal and reminds the user to replace the filter 120 in time.

[0091] It can be understood that if the rotation parameter of the detection component 200 is greater than or equal to the set value, it means that there are fewer impurities such as dust and lint attached to the surface of the filter 120, the air permeability of the filter 120 is higher, and the inhaled air volume is larger. At this time, the air supply equipment can operate normally; if the rotation parameter of the detection component 200 is less than the set value, it means that there are a large amount of impurities such as dust and lint attached to the surface of the filter 120, and the air permeability of the filter 120 is lower. At this time, the user needs to be reminded to replace the filter 120 in time to ensure the normal operation of the air supply equipment.

[0092] In this embodiment, the user can be reminded to replace the filter 120 in time by emitting a warning sound or a warning light.

[0093] More specifically, please refer to Figure 7 , the rotation parameter is at least one of the rotation speed, voltage or power.

[0094] Here, the degree of dirtiness and blockage of the filter 120 can be quickly determined by obtaining at least one of the rotation speed, voltage or power of the detection component 200, so that the user can replace the filter 120 in time and improve the situation where the air volume is affected by severe dirtiness and blockage of the filter 120.

[0095] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0096] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. An air supply device, characterized in that: include: An air supply assembly (100) comprises an air duct (110), a filter screen (120) and an air supply blade (130), wherein the air supply blade (130) is rotatably disposed in the air duct (110), and the filter screen (120) is fixed in the air duct (110); A detection component (200) rotatably disposed in the air duct (110) and capable of obtaining its own rotation parameters; Wherein, when the air supply blade (130) rotates, the detection component (200) is driven by the wind field in the air duct (110) to rotate and obtain its own rotation parameters, and the degree of dirtiness and blockage of the filter (120) is determined by the rotation parameters of the detection component (200).

2. The air supply device according to claim 1, characterized in that: The air duct (110) has an air inlet (111) and an air outlet (112) arranged opposite to each other along its axial direction; the filter (120) is located on a side of the air duct (110) close to the air inlet (111); and the air supply blade (130) is located on a side of the air duct (110) close to the air outlet (112).

3. The air supply device according to claim 2, characterized in that: The filter screen (120) and the air supply blades (130) are distributed side by side along the axial direction of the air duct (110).

4. The air supply device according to claim 2, characterized in that: At least one detection component (200) is provided on a side of the filter (120) facing away from the air inlet (111).

5. The air supply device according to claim 4, characterized in that: A bracket (113) is provided in the air duct (110), the bracket (113) is located on a side of the filter screen (120) away from the air inlet (111), and the detection component (200) is rotatably disposed on the bracket (113).

6. The air supply device according to claim 5, characterized in that: The detection assembly (200) comprises a measuring element (210) and a detection blade (220); the detection blade (220) is rotatably disposed on the bracket (113); the measuring element (210) is disposed inside the detection blade (220) and is used to obtain a rotation parameter of the detection blade (220).

7. The air supply device according to claim 6, characterized in that: The air supply assembly (100) further comprises a driving member (140), wherein the driving member (140) is mounted on the bracket (113) and connected to the air supply blade (130), and the driving member (140) is used to drive the air supply blade (130) to rotate.

8. The air supply device according to claim 7, characterized in that: The central axis of the detection blade (220) is arranged to overlap with the central axis of the air supply blade (130).

9. The air supply device according to claim 7, characterized in that: At least one detection component (200) is provided on a side of the filter (120) facing the air inlet (111).

10. The air supply device according to claim 2, characterized in that: The air supply assembly (100) further comprises an air inlet grille (150) and an air outlet grille (160), wherein the air inlet grille (150) is arranged at the air inlet (111), and the air outlet grille (160) is arranged at the air outlet (112).

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