Filter screen self-cleaning device for air conditioner

Abstract

The utility model provides a filter screen self-cleaning device for an air conditioner, and relates to the technical field of air conditioners. The self-cleaning filter screen comprises a filter screen body and a self-cleaning unit used for cleaning the filter screen body. The self-cleaning unit comprises a cleaning assembly arranged on the front side of the filter screen and a fan assembly arranged on the rear side of the filter screen. The cleaning assembly comprises a cleaning piece, and the cleaning piece moves up and down in the mode of being attached to the filter screen so as to clean the filter screen. The fan assembly comprises a cover body, a fan and an air outlet communicated with the fan; the cover body is arranged on the back side of the filter screen in a covering mode, and the air outlet faces the filter screen. By means of the filter screen self-cleaning device for the air conditioner, the effect of efficiently completing self-cleaning of the filter screen is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, and more specifically, to a filter self-cleaning device for air conditioners. Background Art

[0002] After the air conditioner has been running for a long time, a lot of dust will accumulate in the air conditioner filter, blocking the filter and causing bacteria to grow. If it is not cleaned in time, when the air conditioner is working again, it will not only cause the air conditioner performance to decline, but also easily cause secondary pollution. In addition, most of the existing air conditioner filter devices are integrated, which is not easy to disassemble, resulting in cumbersome cleaning steps.

[0003] The prior art discloses a self-cleaning filter device for HVAC (publication number: CN217178823U), including a frame, an inner wall of the frame is provided with a mounting groove, a mounting frame is slidably installed inside the mounting groove, a dust screen is installed on one side of the mounting frame, first ear plates are fixedly provided on both sides of the dust screen, first ear plates are provided with first mounting holes, first mounting holes are provided with first bolts, the dust screen is fixedly installed to the mounting frame by the first bolts, a fixing plate is installed on the other side of the frame, one side of the fixing plate is provided with a fixing groove corresponding to the mounting frame, second mounting holes are provided at the upper and lower ends of the fixing plate and the frame, second mounting holes are provided in the second mounting holes, the mounting frame is inserted into the fixing groove, and the fixing plate is fixedly installed to the frame by the second bolts. Although the filter device is arranged in a split type to facilitate disassembly and cleaning. However, the following disadvantages still exist:

[0004] Manual cleaning is still required and the filter cleaning efficiency is low.

[0005] Therefore, there is an urgent need for a highly efficient self-cleaning device for the filter screen of an air conditioner. Utility Model Content

[0006] In view of the above problems, an object of the present invention is to provide a filter self-cleaning device for an air conditioner to solve at least one problem existing in the prior art.

[0007] According to one aspect of the utility model, a filter self-cleaning device for an air conditioner is provided, comprising a filter and a self-cleaning unit for cleaning the filter;

[0008] The self-cleaning unit comprises a cleaning assembly arranged at the front side of the filter and a fan assembly arranged at the rear side of the filter; the cleaning assembly comprises a cleaning member, and the cleaning member moves up and down along the filter to clean the filter;

[0009] The fan assembly includes a cover body, a fan and an air outlet connected to the fan; the cover body is arranged on the back side of the filter, and the air outlet faces the filter.

[0010] Furthermore, a preferred structure is that the cleaning assembly includes a screw, an internally threaded sleeve, a moving rod and a screw drive motor for driving the screw to rotate; the internally threaded sleeve is sleeved on the screw and is threadedly connected to the screw; the internally threaded sleeve is connected to one end of the moving rod to drive the moving rod to move back and forth along the surface of the filter; and the cleaning piece is sleeved on the moving rod.

[0011] Furthermore, a preferred structure is that it also includes a mounting frame; the filter is arranged in the mounting frame; and the self-cleaning unit is arranged on the mounting frame.

[0012] Furthermore, a preferred structure is that the cleaning assembly also includes a guide rail for limiting the rising trajectory of the moving rod; the guide rail and the lead screw are correspondingly arranged on the frame on both sides of the mounting frame.

[0013] Furthermore, a preferred structure is that the cleaning component further includes a limit block; the limit block is arranged on the other end of the moving rod; and the limit block is correspondingly arranged in the guide track.

[0014] Furthermore, a preferred structure is that the self-cleaning unit also includes a dust collection assembly arranged at the bottom of the filter.

[0015] Furthermore, a preferred structure is that the dust storage assembly includes a storage box and a full load alarm module arranged in the storage box; the storage box is fixed to the bottom of the installation frame.

[0016] Furthermore, a preferred structure is that the full load alarm module includes a supporting spring, a receiving plate, a movable electrode, a fixed electrode and a buzzer, one end of the supporting spring is fixedly mounted on the bottom of the storage box, the receiving plate is fixedly mounted on the top of the supporting spring, the movable electrode is fixedly mounted on the bottom of the receiving plate, the fixed electrode is fixedly mounted on the inner side wall of the bottom of the storage box, and the buzzer is fixedly mounted on the storage box.

[0017] Furthermore, a preferred structure is that the cleaning member is a cleaning roller brush or a cleaning cotton sleeve.

[0018] Furthermore, a preferred structure is that the cover body is trumpet-shaped, and the air outlet is arranged at the folded part of the cover body.

[0019] The utility model provides a self-cleaning device for an air conditioner filter, which is suitable for the self-cleaning scenario of an air conditioner with a filter. The filter is cleaned by moving the cleaning piece on the front back and forth, and the dust on the filter is blown toward the side of the filter where the cleaning piece is set by the fan on the rear, thereby realizing automatic cleaning of the filter. It can also prevent the dust on the filter from passing through the filter and entering the back side of the filter when the cleaning piece is cleaning the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic structural diagram of a filter self-cleaning device for an air conditioner according to Embodiment 1 of the utility model is shown; and

[0021] Figure 2 A schematic structural diagram of a cleaning assembly of a filter self-cleaning device for an air conditioner according to an embodiment of the utility model is shown.

[0022] Figure 3 A schematic structural diagram of a moving rod and a lead screw of a filter self-cleaning device for an air conditioner according to an embodiment of the utility model is shown.

[0023] Figure 4 A schematic structural diagram of a storage assembly of a filter self-cleaning device for an air conditioner according to an embodiment of the utility model is shown.

[0024] Figure 5 A schematic structural diagram of a cover body of a filter self-cleaning device for an air conditioner according to an embodiment of the utility model is shown.

[0025] Among them: 1. Installation frame; 2. Cover body; 3. Filter; 4. Self-cleaning unit; 401. Guide rail; 402. Motor box; 403. Output motor; 404. Lead screw; 405. Internal threaded sleeve; 406. Limit block; 407. Moving rod; 408. Cleaning part; 409. Fan box; 4010. Fan; 4011. Air duct; 4012. Air outlet; 5. Storage component; 501. Storage box; 502. Support spring; 503. Adapter plate; 504. Moving electrode; 505. Fixed electrode; 506. Buzzer.

[0026] The same reference numerals throughout the drawings indicate similar or corresponding features or functions. DETAILED DESCRIPTION

[0027] In the following description, for the purpose of illustration, in order to provide a comprehensive understanding of one or more embodiments, many specific details are set forth. However, it is apparent that these embodiments may also be implemented without these specific details. In other examples, for ease of describing one or more embodiments, known structures and devices are shown in the form of block diagrams.

[0028] In the description of the present invention, 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 invention 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 invention.

[0029] 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 the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "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 the present invention can be understood according to specific circumstances.

[0031] In the present utility model, 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" or "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" or "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.

[0032] 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.

[0033] HVAC is an air conditioner with heating, ventilation and air conditioning functions. Since the main functions of HVAC include heating, ventilation and air conditioning, and since the HVAC system can control the temperature and humidity of the air and improve the indoor comfort, HVAC is an important part of medium and large industrial buildings or office buildings; however, a built-in filter structure is required in the HVAC to filter the dust in the air, which causes a large amount of dust to accumulate on the surface of the filter in the HVAC, requiring personnel to clean it. Since most of the existing HVAC filter devices are integrated and not easy to disassemble, it is more troublesome to clean them, and a self-cleaning device for the filter is urgently needed. In other words, the self-cleaning device for the filter of the air conditioner of the utility model is not only applicable to all air conditioners with filters, but also particularly suitable for HVAC.

[0034] Example 1

[0035] Figure 1 The structure of the filter self-cleaning device for air conditioner in this embodiment is generally described. Figure 1 The structure diagram of the filter self-cleaning device for air conditioner according to the embodiment of the utility model is shown. Figure 1 As shown, a filter self-cleaning device for an air conditioner comprises a mounting frame 1, a cover body 2 for covering the filter, and a filter 3, wherein the filter is arranged in the mounting frame 1; the self-cleaning unit 4 is arranged on the mounting frame 1. The self-cleaning unit 4 comprises a cleaning assembly arranged on the front side of the filter 3 and a fan assembly arranged on the rear side of the filter 3; the cleaning assembly comprises a cleaning member 408, and the cleaning member 408 moves up and down along the filter 3 to clean the filter 3; the fan assembly comprises a cover body 2, a fan 4010, and an air outlet 4012 connected to the fan 4010; the cover body is arranged on the back side of the filter, and the air outlet 4012 faces the filter. The cover body 2 is fixedly mounted on the mounting frame 1 and arranged backward (if the front side of the filter is arranged according to the cleaning assembly).

[0036] In the specific implementation process, the inner side of the mounting frame 1 is provided with a mounting groove, and the filter is mounted on the mounting groove. The filter is a consumable material, so when the filter reaches the end of its service life, the filter needs to be removed and a new filter installed. For example, the mounting frame 1 can be set as a split device to facilitate the removal and installation of the filter.

[0037] Figure 2 and Figure 3 The structure of the cleaning component of this embodiment is generally described. Figure 2 A schematic structural diagram of a cleaning assembly of a filter self-cleaning device for an air conditioner according to an embodiment of the utility model is shown. Figure 3 The figure shows a schematic diagram of the structure of the moving rod and the lead screw of the filter self-cleaning device for air conditioner according to the embodiment of the utility model. Figure 2 As shown, the cleaning assembly includes a guide rail 401, a motor box 402, an output motor 403, a lead screw 404, an internal threaded sleeve 405, a limit block 406, a moving rod 407, a cleaning member 408, a fan box 409, a fan 4010, an air duct 4011 and an air outlet 4012; the guide rail 401 is used to limit the upward trajectory of the moving rod 407; the guide rail 401 and the lead screw 404 are correspondingly arranged on the frame on both sides of the installation frame 1. The limit block 406 is arranged on the other end of the moving rod 407; the limit block 406 is correspondingly arranged in the guide rail 401. That is, the guide rail 401 and the lead screw 404 are respectively arranged at both ends of the moving rod 407; that is, the longitudinal direction of the guide rail 401 is fixedly installed on the frame on one side of the installation frame 1, and the motor box 402 is fixedly installed on the other side, that is, the motor box 402 is installed on the top of the lead screw. The internal thread sleeve is sleeved on the lead screw and is threadedly connected to the lead screw; the internal thread sleeve is connected to one end of the moving rod to drive the moving rod to move back and forth along the surface of the filter screen. The guide rail cooperates with the internal thread sleeve and is configured to guide the internal thread sleeve to perform linear motion along the axial direction of the lead screw.

[0038] like Figure 2 and 3As shown, the cleaning member 408 is sleeved on the moving rod 407. The output motor 403 is fixedly mounted on the inner wall of the motor box 402, one end of the moving rod 407 is respectively inserted into the guide track 401, and the limit block 406 is fixedly mounted on this end of the moving rod 407; the internal threaded sleeve 405 is fixed on the other end of the moving rod 407, the cleaning member 408 is sleeved on the moving rod 407, one end of the lead screw 404 is fixedly mounted on the output shaft of the output motor 403, and the other end of the lead screw 404 is screwed into the internal threaded sleeve 405. The dust on the filter screen can be cleaned by the cleaning member, so as to achieve the purpose of cleaning the filter screen. Among them, the cleaning member is a cleaning roller brush or a cleaning cotton sleeve. The cleaning member sweeps across the surface of the filter screen to absorb and remove the dust on the surface of the filter screen. The specific implementation method is not specifically limited here. During use, when the user needs to clean the filter 3, the user can power on the output motor 403 and the fan 4010 at the same time. When the output motor 403 is powered on, it can drive the screw 404 to rotate. When the screw 404 rotates, it can transmit the internal threaded sleeve 405 through the mutual cooperation with the internal threaded sleeve 405, and then the internal threaded sleeve 405 can drive the moving rod 407 to move. The moving moving rod 407 can clean the dust on the filter 3 through the cleaning member 408, so as to achieve the purpose of cleaning the filter 3.

[0039] As an improvement of this embodiment, a hydrophobic coating is provided on the filter screen, so that the dust has a low adhesion force on the filter screen, and it is easy to separate the dust from the filter screen. Specifically, the hydrophobic coating can be a fluorine / silicon material or other hydrophobic materials, such as other synthetic polymer melt polymers such as polyolefins, polycarbonates, polyamides, polyacrylonitrile, polyesters, fluorine-free acrylates, molten paraffin, etc., combined with certain process technologies, can also obtain super hydrophobicity.

[0040] Figure 4The schematic diagram of the structure of the storage assembly of the filter self-cleaning device for air conditioner according to the embodiment of the utility model is shown. When in use, the user can clean the filter 3 through the cleaning assembly in the utility model. At the same time, when in use, the storage assembly 5 can also collect the debris cleaned by the cleaning assembly 4, and can also remind the user to clean the collected debris, with various functions. The bottom of the installation frame 1 is provided with a storage assembly 5, and the storage assembly 5 includes a storage box 501, a support spring 502, a receiving plate 503, a movable electrode 504, a fixed electrode 505 and a buzzer 506. One side of the storage box 501 is fixedly installed at the bottom of the installation frame 1, one end of the support spring 502 is fixedly installed on the inner side wall of the bottom of the storage box 501, the receiving plate 503 is fixedly installed on the top of the support spring 502, the movable electrode 504 is fixedly installed at the bottom of the receiving plate 503, the fixed electrode 505 is fixedly installed on the inner side wall of the bottom of the storage box 501, and the buzzer 506 is fixedly installed on the inner side wall of the bottom of the storage box 501. That is to say, the storage box 501 in the utility model is arranged at the bottom of the installation frame 1, and the larger debris cleaned by the cleaning member 408 can fall into the storage box 501. As the debris accumulates in the storage box 501, the pressure exerted by the receiving plate 503 on the supporting spring 502 can be increased, so that the receiving plate 503 can squeeze the supporting spring 502, so that the receiving plate 503 moves downward, and the movable electrode 504 can be connected with the fixed electrode 505, so that the buzzer 506 can be powered on and work. The sound generated by the buzzer 506 after being powered on can remind the user, so that the user can clean it in time. The problem of mold breeding caused by the dust box not being cleaned for a long time is avoided.

[0041] Figure 5 A schematic structural diagram of a cover body of a filter self-cleaning device for an air conditioner according to an embodiment of the utility model is shown.

[0042] like Figure 5As shown, the fan box 409 is fixedly mounted on one end of the cover body 2, the fan 4010 is fixedly mounted on the inner side wall of the fan box 409, one end of the air duct 4011 is fixedly mounted on the inner side wall of the fan box 409, the other end of the air duct 4011 is penetrated in the cover body 2, and the air outlet 4012 is fixedly mounted on the other end of the air duct 4011. When the hair dryer is powered on, the airflow generated by the hair dryer can be blown onto the filter screen, thereby preventing the dust on the filter screen from passing through the filter screen and entering the installation frame when the cleaning member cleans the filter screen, and at the same time, the smaller dust adhering to the filter screen can be blown off. In order to further enhance the dust blocking effect of the cover body, the cover body is trumpet-shaped, and the air outlet is arranged at the folded part of the cover body. That is to say, when the fan 4010 is powered on, the airflow generated by the fan 4010 can blow onto the filter 3, thereby preventing the dust on the filter 3 from passing through the filter 3 and entering the installation frame 1 when the cleaning member 408 cleans the filter 3. At the same time, smaller dust adhering to the filter 3 can also be blown off.

[0043] In summary, the utility model of the self-cleaning device for the filter of the air conditioner can clean the dust on the filter through the cleaning part, so as to achieve the purpose of cleaning the filter. At the same time, when the fan is powered on, the airflow generated by the fan can be blown onto the filter, thereby preventing the dust on the filter from passing through the filter and entering the installation frame when the cleaning part cleans the filter. At the same time, the smaller dust adhering to the filter can be blown off, so as to achieve the purpose of automatic cleaning, without manual cleaning, which is more labor-saving. The effect of high-efficiency self-cleaning of the filter is achieved.

[0044] As above Figure 1-Figure 5 The self-cleaning device for the filter screen of the air conditioner according to the utility model is described by way of example. However, those skilled in the art should understand that various improvements can be made to the self-cleaning device for the filter screen of the air conditioner proposed by the utility model without departing from the content of the utility model. Therefore, the protection scope of the utility model should be determined by the content of the attached claims.

Claims

1. A filter self-cleaning device for an air conditioner, characterized in that: comprising a filter screen and a self-cleaning unit for cleaning the filter screen; The self-cleaning unit comprises a cleaning assembly arranged at the front side of the filter and a fan assembly arranged at the rear side of the filter; the cleaning assembly comprises a cleaning member, which moves up and down along the filter to clean the filter; the cleaning member is a cleaning roller brush or a cleaning cotton sleeve; The fan assembly includes a cover body, a fan and an air outlet connected to the fan; the cover body is arranged on the back side of the filter, and the air outlet faces the filter.

2. The filter self-cleaning device for air conditioner according to claim 1, characterized in that: The cleaning assembly includes a screw, an internally threaded sleeve, a moving rod and a screw drive motor for driving the screw to rotate; the internally threaded sleeve is sleeved on the screw and is threadedly connected to the screw; the internally threaded sleeve is connected to one end of the moving rod to drive the moving rod to move back and forth along the surface of the filter; the cleaning piece is sleeved on the moving rod.

3. The filter self-cleaning device for air conditioner according to claim 2, characterized in that: It also includes an installation frame; the filter screen is arranged in the installation frame; and the self-cleaning unit is arranged on the installation frame.

4. The filter self-cleaning device for air conditioner according to claim 2, characterized in that: The cleaning assembly also includes a guide rail for limiting the ascending trajectory of the moving rod; the guide rail and the lead screw are correspondingly arranged on the frame on both sides of the installation frame.

5. The filter self-cleaning device for air conditioner according to claim 4, characterized in that: The cleaning assembly further comprises a limit block; the limit block is arranged on the other end of the moving rod; the limit block is correspondingly arranged in the guide track.

6. The self-cleaning filter device for an air conditioner according to claim 4, characterized in that: The self-cleaning unit also includes a dust collection assembly arranged at the bottom of the filter.

7. The self-cleaning filter device for an air conditioner according to claim 6, characterized in that: The dust storage assembly comprises a storage box and a full-load alarm module arranged in the storage box; the storage box is fixed at the bottom of the installation frame.

8. The self-cleaning filter device for an air conditioner according to claim 7, characterized in that: The full load alarm module includes a supporting spring, a receiving plate, a movable electrode, a fixed electrode and a buzzer. One end of the supporting spring is fixedly installed on the bottom of the storage box, the receiving plate is fixedly installed on the top of the supporting spring, the movable electrode is fixedly installed on the bottom of the receiving plate, the fixed electrode is fixedly installed on the inner side wall of the bottom of the storage box, and the buzzer is fixedly installed on the storage box.

9. The filter self-cleaning device for an air conditioner according to claim 1, characterized in that: The cover body is trumpet-shaped, and the air outlet is arranged at the folded part of the cover body.

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