Dust removal device and air conditioning equipment

Abstract

The utility model relates to a dust removal device and air conditioning equipment, the dust removal device is used for cleaning a filter screen, the dust removal device comprises a suction head structure, the suction head structure is provided with at least two dust suction ports, all the dust suction ports are configured to selectively and partially work, and different dust suction ports face different areas of the filter screen when working. According to the dust removal device, the suction head structure is provided with the plurality of dust suction ports, and when the dust removal device works, only part of the dust suction ports work at the same time, that is, the suction force generated by the dust removal device can act on the filter screen through the working dust suction ports, the suction force is more concentrated, and the negative pressure loss is reduced. Besides, the dust removal device can also work by replacing different dust suction ports to clean different areas of the filter screen, so that on the premise that the coverage range of a single dust suction port is limited, the coverage range of the whole suction head structure is enlarged by using different dust suction ports, and the suction head structure is better suitable for cleaning work of the filter screen.

Description

Technical Field

[0001] The present application relates to the technical field of filter screen cleaning, and particularly to a dust removal device and an air conditioning equipment. Background Art

[0002] In related technologies, for most filter screens of filter type air dust removal devices, the designed service life is relatively long. The purpose of this is to reduce the user's usage cost while ensuring effective air filtration. However, in many cases, users find that after the filter screen has been used for a period of time, a lot of dust, hair and other dirt have been adsorbed on its surface. Over time, when the dirt accumulates to a certain extent and gets damp, it begins to form lumps, seriously affecting the user's visual perception.

[0003] However, at this time, the filter screen is far from reaching its service life. The user either reluctantly replaces the new filter screen, or wipes off this layer of dirt by himself / herself. However, the wiping action will cause a large amount of dirt to be squeezed through the outermost primary filter screen and forcibly spread into the folds of the inner filter screen, resulting in accelerated pollution inside the filter screen, which loses the filtering significance of the outermost primary filter screen. At the same time, a large part of the pollutants will also re-disperse into the air through this wiping action, causing secondary pollution and harming the physical health of the cleaning personnel. Moreover, the dirt accumulated on the surface of the filter screen will invisibly change the air resistance of the filter screen itself, thereby affecting its air filtration effect and the power consumption and noise of the equipment. Summary of the Utility Model

[0004] Based on this, in view of the above problems, it is necessary to provide a dust removal device that can effectively remove the dirt on the surface of the filter screen and an air conditioning equipment with such a dust removal device.

[0005] A dust removal device for cleaning a filter screen, the dust removal device comprising:

[0006] A suction head structure having at least two suction ports, all the suction ports being configured to selectively operate partially, and different suction ports being oriented towards different regions of the filter screen when operating.

[0007] In one embodiment, the suction head structure includes a suction pipe and an outer housing, the suction ports are respectively arranged on the suction pipe, the outer housing is sleeved outside the suction pipe, and the outer housing has a suction inlet facing the surface of the filter screen, and all the suction ports are configured to selectively align and communicate with the suction inlet partially for operation.

[0008] In one embodiment, the suction pipe is rotatably arranged in the outer housing around a first direction, all the suction ports are arranged at different angles on the circumference of the suction pipe around the first direction; the suction inlet is arranged on one side of the outer housing and is configured to be vertically arranged along the first direction.

[0009] In one embodiment, the dust suction pipe includes at least two sub-pipe segments arranged in sequence along the first direction, and each of the sub-pipe segments has one of the dust suction ports.

[0010] In one embodiment, the dust removal device includes at least two brush heads, the brush heads are all arranged on the outer housing, the brush heads all have an extended state and a retracted state, the extended state and the retracted state can be switched with each other, and in the extended state, the brush heads are in contact with the surface of the filter screen, and in the retracted state, the brush heads are spaced from the surface of the filter screen;

[0011] All the brush heads are arranged in one-to-one correspondence with all the sub-pipe segments along the first direction, and the dust removal device further includes a pushing structure configured to push the brush heads to the extended state when the dust suction ports of the sub-pipe segments corresponding to the brush heads are aligned and communicated with the dust suction inlet, and push the brush heads to the retracted state when the dust suction ports of the sub-pipe segments corresponding to the brush heads are not aligned and communicated with the dust suction inlet.

[0012] In one embodiment, each of the brush heads includes a support body and two support columns, and the two support columns are respectively connected to both ends of the support body in the longitudinal direction;

[0013] The pushing structure includes a cam and an elastic member. Cams are provided at both ends of each sub-pipe segment, and the support columns of each brush head support on the surface of the cam corresponding to the sub-pipe segment; the circumferential surface of the cam around the first direction has a support area and a retracted area, and in the circumferential direction around the first direction, the retracted area to the support area is a smooth transition. When the support column supports on the support area, the brush head is in the extended state, and when the support column supports on the retracted area, the brush head is in the retracted state; the elastic member abuts against the brush head and is configured to apply an elastic force towards the cam to the brush head.

[0014] In one embodiment, there are at least two sealed cavities in the outer housing, and each sub-pipe segment is correspondingly arranged in one of the sealed cavities.

[0015] In one embodiment, the dust removal device further includes a brush head, and the brush head is arranged on the suction head structure.

[0016] In one embodiment, the dust removal device includes at least two of the brush heads, the brush heads all have an extended state and a retracted state that can be switched with each other, and in the extended state, the brush heads are in contact with the surface of the filter screen, and in the retracted state, the brush heads are spaced from the surface of the filter screen;

[0017] All the brush heads are arranged in one-to-one correspondence with the filter area that all the suction ports face when working, and are switched to the extended state when the corresponding suction ports are working, and are switched to the retracted state when the corresponding suction ports are not working.

[0018] In one embodiment, all of the suction ports are configured to work selectively.

[0019] In one of the embodiments, the dust removal device further includes a driving assembly, which is transmission-connected to the filter and / or the suction head structure and is configured to drive the suction head structure to move relative to the filter so that the suction head structure moves along the surface of the filter.

[0020] In one embodiment, the area of ​​the filter screen that each of the suction ports faces when in operation is a cleaning area, and all of the cleaning areas are configured to be arranged in sequence along a first direction, and the first direction intersects with a moving direction of the suction head structure relative to the filter screen.

[0021] In one of the embodiments, the dust removal device further comprises a mounting seat, wherein the mounting seat is used to mount the filter screen;

[0022] The suction head structure is arranged on the mounting seat and is located on one side of the filter screen. The driving assembly is connected to the filter screen in a transmission manner and is configured to drive the filter screen to rotate relative to the mounting seat.

[0023] An air conditioning device comprises the above-mentioned dust removal device.

[0024] The dust removal device has a suction head structure with multiple suction ports, and when working, only some of the suction ports are working at the same time, that is, the suction force generated by the dust removal device can act on the filter through the suction ports that are working, so the suction force is more concentrated and the negative pressure loss is reduced. In addition, the dust removal device can also clean different areas of the filter by replacing different suction ports to work, so that under the premise that the coverage range of a single suction port is limited, different suction ports can be used to increase the coverage range of the suction head structure as a whole, so as to be better suitable for the cleaning of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1Schematic structural diagram of a dust removal device equipped with a filter screen in an embodiment of the present application.

[0027] Figure 2 It is Figure 1 Schematic cross-sectional structure diagram of the filter screen and the dust removal device shown.

[0028] Figure 3 It is Figure 1 Partial structural schematic diagram of the dust suction component in the dust removal device shown.

[0029] Figure 4 It is Figure 3 Exploded structural schematic diagram of the dust suction component shown.

[0030] Figure 5 It is Figure 3 Schematic structural diagram of the brush head in the dust suction component shown.

[0031] Figure 6 It is Figure 5 Schematic cross-sectional structure diagram of the brush head shown.

[0032] Figure 7 It is Figure 3 Schematic cross-sectional structure diagram when the brush head at the top of the dust suction component is in the extended state shown.

[0033] Figure 8 It is Figure 7 Enlarged structural schematic diagram of the dust suction component at A shown.

[0034] Figure 9 It is Figure 3 Partial sectional structural schematic diagram of a brush head in the extended state, a brush head in the retracted state and the dust suction pipe in cooperation in the dust suction component shown.

[0035] Figure 10 It is Figure 9 Schematic cross-sectional structure diagram of the dust suction component at B - B shown.

[0036] Figure 11 It is Figure 9 Enlarged structural schematic diagram of the dust suction component at C shown.

[0037] Figure 12 It is Figure 9 Enlarged structural schematic diagram of the dust suction component at D shown.

[0038] Figure 13 It is Figure 3 Another schematic cross-sectional structure diagram of the dust suction component shown.

[0039] Figure 14 It is Figure 13 Enlarged structural schematic diagram of the dust suction component at E shown.

[0040] Figure 15 This is a schematic flowchart of the control method of the dust removal device in an embodiment of the present application.

[0041] Explanation of reference numerals: 100, dust removal device; 10, dust suction component; 11, suction head structure; 111, dust suction port; 113, dust suction pipe; 1131, sub-pipe section; 115, outer housing; 1151, dust suction inlet; 1153, front shell; 11531, buckle; 1155, rear shell; 13, negative pressure device; 15, brush head; 151, support body; 153, support column; 155, spring column; 17, cam; 171, support area; 173, retracted area; 18, elastic member; 19, pressing plate; 30, mounting seat; 50, rotating disk; 200, filter screen. Detailed implementation manners

[0042] In order to make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand 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 departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0043] In the description of the present application, it should be understood that if terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0044] In addition, if the term "and / or" appears, "and / or" is merely a description of the relationship between associated objects and indicates that three relationships may exist. For example, A and / or B can represent the following relationships between A and B: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, in this text, the character " / " generally indicates an "or" relationship between the associated objects before and after it. If terms such as "first" and "second" appear, these terms are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, four, five, etc., unless otherwise specifically and clearly defined.

[0045] In this application, unless otherwise clearly specified and defined, if terms such as "installed", "connected", "joined", "fixed", etc. appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0046] In this application, unless otherwise clearly specified and defined, if there are descriptions such as a first feature being "on" or "under" a second feature, etc., the meaning can be 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, the first feature being "above", "over", and "on top of" the second feature can mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath", and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0047] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If so, the terms "vertical", "horizontal", "up", "down", "left", "right", and similar expressions used in this application are only for illustrative purposes and do not represent the only implementation.

[0048] As described in the background art, in order to make full use of the filter screen to reduce the usage cost, before the filter screen reaches the service life, if too much dust, hair and other dirt are adsorbed on its surface, it needs to be cleaned. At this time, if the manual wiping method is adopted, the dirt may be squeezed through the primary filter screen on the outermost layer of the filter screen and forced to spread into the folds of the inner layer of the filter screen, and even part of the dirt will spread into the air, reducing the air quality, which is contrary to the original intention of using the purifier. At this time, the method of vacuuming can be considered to clean the dirt on the surface of the filter screen, but it is not realistic to use the existing household automatic vacuuming equipment to remove dust from the surface of the filter screen. Because the structure of the suction heads carried by these devices is single, and the application scenarios are limited to daily cleaning, and they can only be competent for the surface dust removal work of items with a large enough flat area such as floors and beds. For the filter screen in the purifier with a small size, an uneven surface, and serious dust accumulation or even caking, it is difficult to be effectively applied. In addition, if the device sets the size of the suction port very small in order to ensure the vacuuming effect and make the suction force sufficiently concentrated, it will result in a very small area of the cleaning area covered by the suction head structure per unit time, and it is difficult to ensure the full cleaning of the entire filter screen, with a high cleaning difficulty and even more difficult to achieve automatic cleaning. Therefore, even if the idea of using vacuuming to clean the filter screen is considered, it is difficult to achieve through the existing devices.

[0049] For the above problems, please refer to Figures 1 to 4 , a dust removal device 100 provided by an embodiment of the present application is used to clean a filter screen 200 and includes a vacuuming component 10. The vacuuming component 10 includes a suction head structure 11, and the suction head structure 11 has at least two suction ports 111. All the suction ports 111 are configured to selectively work partially, and when different suction ports 111 work, they respectively face different regions of the filter screen 200.

[0050] It can be understood that the vacuuming component 10 has the function of vacuuming through the suction head structure 11. To achieve its vacuuming function, the vacuuming component 10 may further include a negative pressure device 13, such as a suction fan motor or a vacuum pump, etc., and is connected to the suction head structure 11. In addition, the vacuuming component 10 may further include a dust box (not shown in the figure) for collecting the inhaled dirt.

[0051] The vacuuming component 10 can generate suction force on the surface of the filter screen 200 through the suction ports 111 of the suction head structure 11 to vacuum the filter screen 200. That all the suction ports 111 are configured to selectively work partially means that at the same moment, some of the suction ports 111 of the suction head structure 11 work and some do not work, and different suction ports 111 can be replaced to work. That different suction ports 111 face different regions of the filter screen 200 when working means that different suction ports 111 face different regions of the filter screen 200 when working. The different regions can be completely non-overlapping different regions or there can be partially overlapping different regions, which is not specifically limited herein.

[0052] The above dust removal device 100 has a suction head structure 11 with a plurality of suction ports 111. During operation, only some of the suction ports 111 work at the same time. That is, the suction force generated by the dust removal device 100 can act on the filter screen 200 through these working suction ports 111, making the suction force more concentrated and reducing the negative pressure loss. In addition, the dust removal device 100 can also work by replacing different suction ports 111 to automatically clean different areas of the filter screen 200. On the premise that the coverage of a single suction port 111 is limited, different suction ports 111 are used to increase the overall coverage range of the suction head structure 11, making it better applicable to the cleaning work of the filter screen 200.

[0053] In some embodiments, all the suction ports 111 are configured to work alternately.

[0054] All the suction ports 111 being configured to work alternately means that at most one suction port 111 on the suction head structure 11 is allowed to work at the same time, and different suction ports 111 can be replaced for work.

[0055] In this way, the suction force generated by the dust removal device 100 can act on the filter screen 200 through a single suction port 111, making the suction force more concentrated and helping to reduce the negative pressure loss. In addition, the dust removal device 100 can also work by replacing different suction ports 111 one by one to automatically clean different areas of the filter screen 200.

[0056] It can be understood that in some other embodiments, all the suction head structures 11 have three or more suction ports 111. At the same time, two or more suction ports 111 can be in a working state, and there is at least one suction port 111 that is not working.

[0057] In some embodiments, the dust removal device 100 further includes a mounting base 30 for mounting the filter screen 200.

[0058] The mounting base 30 has a mounting position for mounting the filter screen 200, and the suction head assembly can be arranged on the mounting base 30. Among them, the suction head structure 11 is arranged close to the mounting position. After the filter screen 200 is mounted in place, the suction head structure 11 is located on one side of the filter screen 200.

[0059] In this way, before cleaning the filter screen 200, the dust removal device 100 can mount the filter screen 200 on the mounting base 30 to make it obtain a relatively stable position, facilitating the suction of the suction component 10 to it.

[0060] In some embodiments, the dust removal device 100 further includes a driving component (not shown in the figure), the driving component is drivingly connected to the filter screen 200 and / or the suction head structure 11, and is configured to be able to drive the suction head structure 11 and the filter screen 200 to move relative to each other, so that the suction head structure 11 moves along the surface of the filter screen 200. It can be understood that the ranges that different suction ports 111 can cover the filter screen 200 by moving are different, and the ranges that each suction port 111 can cover the filter screen 200 by moving together constitute the area that can face the filter screen 200 during its operation.

[0061] In other words, under the drive of the driving component, the suction head structure 11 can move along the surface of the filter screen 200. The driving component can drive the suction head structure 11 to move relative to the filter screen 200, or drive the filter screen 200 to move relative to the suction head structure 11, or drive the suction head structure 11 and the filter screen 200 at the same time and make the two move relative to each other.

[0062] In this way, as the suction head structure 11 moves along the surface of the filter screen 200, the range covered by its suction port 111 can be expanded. Therefore, even if the suction port 111 is small, it can cover a large range during operation.

[0063] In some embodiments, the area that all the suction ports 111 face the filter screen 200 during operation is a cleaning area, and all the cleaning areas are configured to be arranged in sequence along a first direction (such as Figure 2 the Z direction shown), and the first direction intersects with the moving direction of the suction head structure 11 relative to the filter screen 200. In addition, the suction head structure 11 can also be configured such that its longitudinal direction is arranged along the first direction.

[0064] In the area that all the suction ports 111 face the filter screen 200 during operation, the adjacent areas in the first direction at least partially do not overlap. Specifically, the first direction is perpendicular to the moving direction of the suction head structure 11 relative to the filter screen 200. The relative moving manner of the suction head structure 11 and the filter screen 200 can be but is not limited to translation and rotation. When the moving manner is translation, the first direction is perpendicular to the translation direction. When the moving manner is rotation, that is, it is perpendicular to the plane where the rotation direction is located.

[0065] It can be understood that all the suction ports 111 should be able to generally cover the entire filter screen 200 in the first direction.

[0066] In this way, different suction ports 111 can more effectively cover different ranges of the filter screen 200 by moving, and expand the actual cleaning range of the suction assembly 10 as it moves.

[0067] In some embodiments, the suction head structure 11 is disposed on the mounting base 30 and is located on one side of the filter screen 200. The driving component is drivingly connected to the filter screen 200 and is configured to drive the filter screen 200 to rotate relative to the mounting base 30.

[0068] The filter screen 200 is a cylindrical filter screen, and the driving assembly drives the filter screen 200 to rotate around its axis. When the filter screen 200 rotates, the suction head structure 11 located on one side of it also moves along the surface of the filter screen 200. When the filter screen 200 rotates one circle, the suction head structure 11 sweeps one circle.

[0069] Specifically, the axial direction of the filter 200 is arranged along the first direction, which is also its height direction, and the areas that can be covered by all the dust suction ports 111 are arranged in sequence along the first direction, that is, different dust suction ports 111 can cover different height areas of the filter 200. Therefore, when different dust suction ports 111 are working, as the filter 200 rotates, the entire circumference of the filter 200 at different heights can be fully swept.

[0070] In this way, the filter screen 200 can rotate so that the suction head structure 11 can fully sweep over its surface to clean it.

[0071] Specifically, the dust removal device 100 further includes a rotating disk 50 , which is rotatably disposed on the mounting seat 30 , the mounting filter 200 is disposed on the rotating disk 50 , and the driving assembly is transmission-connected to the rotating disk 50 .

[0072] In this way, the filter screen 200 is installed on the turntable and can follow the rotating disk 50 and rotate stably relative to the base.

[0073] In some other embodiments, for the cylindrical filter screen, the suction head structure 11 may also be annular and arranged around the filter screen 200, and all the dust suction ports 111 thereon are arranged circumferentially. The driving component may drive the suction head structure 11 to move up and down along the axial direction of the filter screen 200. In addition, the filter screen 200 may also be a sheet filter screen. For the sheet filter screen, all the dust suction ports 111 may be arranged along the height or length direction of the filter screen 200. Accordingly, the suction head structure 11 may be driven by the driving component to move along the length or height direction of the filter screen 200. When the suction head structure 11 and the filter screen 200 move relative to each other in a translational manner, it is only necessary to replace the rotating disk 50 with a rack or other transmission structure accordingly, and no specific limitation is made here.

[0074] In some other embodiments, without driving the suction head structure 11 to move relative to the filter 200, the area to which all the suction ports 111 are directed when working can cover the entire filter 200. In this way, the dust removal device 100 can clean the filter 200 by controlling the suction ports 111 to work one by one.

[0075] Please also read Figures 5 to 6 In some embodiments, the dust collection assembly 10 further includes a brush head 15 , and the brush head 15 is disposed on the suction head structure 11 .

[0076] The brush head 15 is disposed on one side of the suction head structure 11 close to the filter screen 200, and together with the suction head structure 11, forms a dust suction brush head, and can contact the surface of the filter screen 200. Among them, structures such as bristles for cleaning the contact surface are preset on the brush head 15.

[0077] The brush head 15 can forcibly brush off the "stubborn" dust accumulated on the surface of the filter screen 200 for the suction port 111 to inhale. In addition, when the suction head structure 11 and the filter screen 200 move relative to each other, the brush head 15 can move relative to the filter screen 200 along with the suction head structure 11 and brush across the surface of the filter screen 200. In some other embodiments, the brush head 15 can also additionally have a driving motor to drive it to clean the filter screen 200.

[0078] Please refer to Figures 7 to 9 , further, the dust suction assembly 10 includes at least two brush heads 15. Each brush head 15 has an extended state and a retracted state, and the extended state and the retracted state can be switched to each other. In the extended state, the brush head 15 contacts the surface of the filter screen 200, and in the retracted state, the brush head 15 is spaced from the surface of the filter screen 200.

[0079] All the brush heads 15 are arranged in one-to-one correspondence with the areas of the filter screen 200 that all the suction ports 111 face during operation. When the corresponding suction port 111 is operating, it switches to the extended state, and when the corresponding suction port 111 is not operating, it switches to the retracted state.

[0080] In this way, only when the corresponding suction port 111 is sucking dust, the brush head 15 extends to contact the filter screen 200 for operation, and at this time, the dust and dirt brushed off can be inhaled by the suction port 111. When the corresponding suction port 111 is not sucking dust, the brush head 15 retracts and does not contact the filter screen 200 for operation, so as to avoid the dust and dirt brushed off from not being effectively inhaled.

[0081] In some embodiments, the suction head structure 11 includes a suction pipe 113 and an outer housing 115. The suction ports 111 are respectively disposed on the suction pipe 113. The outer housing 115 is sleeved outside the suction pipe 113. The outer housing 115 has a suction inlet 1151 facing the surface of the filter screen 200. All the suction ports 111 are configured to be selectively and partially aligned and communicated with the suction inlet 1151 for operation.

[0082] It can be understood that the suction pipe 113 is connected to the negative pressure device 13. All the suction ports 111 are independent of each other and are respectively disposed on the suction pipe 113. The negative pressure generated by the negative pressure device 13 acts on the filter screen 200 through the suction ports 111 of the suction pipe 113.

[0083] Taking the example of all the suction ports 111 working in one position, at most only one of the suction ports 111 can be aligned and connected with the suction inlet 1151 at the same time, and the other suction ports 111 are located in the outer shell 115 and are still in a closed state, so that all the suction ports 111 can work in one position. The aligned suction ports 111 can be connected with the suction inlet 1151, and negative pressure is formed on the surface of the filter 200 through the suction inlet 1151, forming a small suction unit to perform the suction work.

[0084] Thus, among all the suction ports 111, the suction ports 111 aligned and connected with the suction inlet 1151 are in working state and can work. The suction ports 111 on the suction pipe 113 are selectively connected with the suction inlet 1151, so that the suction ports 111 can work selectively.

[0085] Specifically, the outer shell 115 includes a front shell 1153 and a rear shell 1155, and the dust inlet 1151 is arranged on the front shell 1153. The front shell 1153 and the rear shell 1155 are connected and jointly define a accommodating cavity, so that the dust suction pipe 113 can be installed in the accommodating cavity. The dust suction port 111 that is not connected to the dust inlet 1151 is in the accommodating cavity and is jointly closed by the front shell 1153 and the rear shell 1155.

[0086] In some embodiments, the dust suction pipe 113 is rotatably disposed in the outer shell 115 around the first direction, and all the dust suction ports 111 are disposed at different angles in the circumferential direction of the dust suction pipe 113 around the first direction. The dust suction inlet 1151 is disposed on one side of the outer shell 115 and is configured to be vertically disposed along the first direction. In other words, all the dust suction ports 111 are configured to face different angles in the circumferential direction around the first direction.

[0087] In this way, the dust suction tube 113 can change the orientation of each dust suction port 111 thereon by rotating. Since each dust suction port 111 has a different orientation and the dust suction inlet 1151 is only located on one side of the outer shell 115, the dust suction tube 113 can only be rotated until one of the dust suction ports 111 is aligned with the dust suction inlet 1151. The other dust suction ports 111 on the dust suction tube 113 cannot be connected to the outside world because they have not rotated to a position overlapping with the dust suction inlet 1151 of the front shell 1153. This ensures that the negative pressure of the negative pressure device 13 can only be released from the only dust suction port 111 that is connected to the outside world.

[0088] Specifically, the dust suction assembly 10 further includes an adjustment assembly (not shown), which is in transmission connection with the dust suction pipe 113 and is configured to drive the dust suction pipe 113 to rotate around a first direction in the outer shell 115. In this way, the dust removal device 100 can automatically switch the working dust suction port 111 through the adjustment member, and further realize that all the dust suction ports 111 work one by one by gradually rotating the dust suction pipe 113.

[0089] In some embodiments, if the length of the dust suction inlet 1151 in the first direction is L1 and the length of the filter screen 200 in the first direction is L2, then L1 ≥ 0.8·L2.

[0090] In this way, the dust suction inlet 1151 can generally cover the entire filter screen 200 in the first direction to fully clean the filter screen 200.

[0091] In some embodiments, if the length of the dust suction inlet 1151 in the first direction is L1 and the length that all the dust suction ports 111 can cover the dust suction inlet 1151 in the first direction is L3, then L3 ≥ 0.8·L1.

[0092] In this way, all the dust suction ports 111 can generally cover the entire dust suction inlet 1151 in the first direction to fully clean the filter screen 200 through the entire dust suction inlet 1151.

[0093] In some embodiments, the dust suction pipe 113 includes at least two sub-pipe segments 1131 arranged in sequence along the first direction. Each sub-pipe segment 1131 has a dust suction port 111, and the orientations of the dust suction ports 111 of the respective sub-pipe segments 1131 are different.

[0094] In this way, each sub-pipe segment 1131 is a working segment that can form a dust suction unit with the dust suction inlet 1151, and they do not affect each other and work independently.

[0095] Specifically, there are at least two sealed cavities in the outer housing 115, and each sub-pipe segment 1131 is correspondingly arranged in a sealed cavity. It can be understood that the dust suction ports 111 of adjacent sub-pipe segments 1131 cannot be communicated through the sealed cavity.

[0096] All the sealed cavities correspond to the respective sub-pipe segments 1131 one by one. For the sub-pipe segment 1131 whose dust suction port 111 is not rotated to a specific angle to communicate with the dust suction inlet 1151, its dust suction port 111 is sealed by a sealed wall. In addition, the dust suction inlet 1151 can also be correspondingly segmented, and each segment can be correspondingly aligned and communicated with a dust suction port 111.

[0097] Please refer to Figures 10 to 14 together. In some embodiments, all the brush heads 15 are provided on the outer housing 115. All the brush heads 15 of the dust suction assembly 10 are arranged in one-to-one correspondence with all the sub-pipe segments 1131 along the first direction. The dust suction assembly 10 further includes a pushing structure, which is configured to push the brush head 15 to the extended state when the dust suction port 111 of the sub-pipe segment 1131 corresponding to the brush head 15 is aligned and communicated with the dust suction inlet 1151, and push the brush head 15 to the retracted state when the dust suction port 111 of the sub-pipe segment 1131 corresponding to the brush head 15 is not aligned and communicated with the dust suction inlet 1151.

[0098] In other words, when the pushing structure rotates the dust suction pipe 113 to different angles, the brush heads 15 corresponding to the respective sub-pipe segments 1131 are pushed into different states. The brush heads 15 can be disposed at the dust suction inlets 1151. When the dust suction pipe 113 rotates to align and communicate the dust suction port 111 of one of the sub-pipe segments 1131 with the dust suction inlet 1151, the pushing structure can push the brush head 15 corresponding to this sub-pipe segment 1131 to an extended state. Conversely, when the dust suction pipe 113 rotates to a position where the dust suction port 111 of a sub-pipe segment 1131 is no longer aligned and communicated with the dust suction inlet 1151, the pushing structure can push the brush head 15 corresponding to this sub-pipe segment 1131 to a retracted state.

[0099] In this way, under the action of the pushing structure, the operation of the brush head 15 has a one-to-one correspondence with the operation of its corresponding sub-pipe segment 1131, and the two work simultaneously and end simultaneously.

[0100] In some embodiments, each brush head 15 includes a support body 151 and two support columns 153. The two support columns 153 are respectively connected to both ends of the support body 151 in the longitudinal direction. The pushing structure includes a cam 17 and an elastic member 18. Cams 17 are provided at both ends of each sub-pipe segment 1131, and the support columns 153 of each brush head 15 are supported on the surface of the cam 17 corresponding to the sub-pipe segment 1131. It can be understood that the two support columns 153 of each brush head 15 are respectively supported on the surfaces of the cams 17 at both ends of the corresponding sub-pipe segment 1131.

[0101] The circumferential surface of the cam 17 in the circumferential direction of the first direction has a support area 171 and a retracted area 173. The retracted area 173 is smoothly transitioned to the support area 171. When the support column 153 is supported on the support area 171, the brush head 15 is in an extended state. When the support column 153 is supported on the retracted area 173, the brush head 15 is in a retracted state. The elastic member 18 abuts against the brush head 15 and is configured to apply an elastic force towards the cam 17 to the brush head 15 to maintain the state where the two support columns 153 are supported on the surface of the cam 17.

[0102] Specifically, the support column 153 is located on the side of the support body 151 facing the dust suction pipe 113 and is provided to protrude relative to the support body 151. Both ends of each sub-pipe segment 1131 in the longitudinal direction have a groove structure. The cam 17 is disposed within the groove structure. One end of the support column 153 also recesses into the groove structure and abuts against the surface of the cam 17. The radius of the cam 17 at the retraction region 173 is smaller than the radius at the support region 171. The retraction region 173 to the support region 171 is a smooth transition. The support column 153 can smoothly move from the retraction region 173 to the support region 171. The support region 171 to the retraction region 173 can be either a smooth transition or a non-smooth transition. To achieve the rapid retraction of the brush head 15, the support region 171 to the retraction region 173 can be a non-smooth transition, specifically a cliff-like transition.

[0103] In addition, in the circumferential direction around the first direction, the support region 171 of the cam 17 is arranged corresponding to the position of the dust suction port 111 of the sub-pipe segment 1131. When the dust suction port 111 of the sub-pipe segment 1131 rotates to align with the dust suction inlet 1151, the support region 171 of the cam 17 also pushes the brush head 15 to the extended state.

[0104] In this way, as the dust suction pipe 113 rotates, the cam 17 also rotates accordingly, and the brush head 15 also presents corresponding state changes.

[0105] Furthermore, the pushing structure further includes a pressing plate 19. On the other side opposite to the side of the support body 151 where the support column 153 is provided, a spring column 155 is arranged. A spring is sleeved on the spring column 155. A pressing plate 19 is provided at the top of the spring for limiting to prevent the spring from falling out. The pressing plate 19 is fixedly connected to the front shell 1153 and is used to press the spring so that it applies an elastic force towards the cam 17 to the support body 151. Specifically, a buckle 11531 is provided at the junction of the segmented dust suction inlets 1151 of the front shell 1153, and the pressing plate 19 is snap-connected to the buckle 11531.

[0106] In some other embodiments, the suction head structure 11 further has at least two sealing members. All the sealing members correspond to the dust suction ports 111 one by one. When the dust suction ports 111 are working, they open to keep the dust suction ports 111 conducting. When the dust suction ports 111 are not working, they close to keep the dust suction ports 111 closed. At the same moment, at most one sealing member is allowed to open to enable all the dust suction ports 111 to work alternatively.

[0107] The above dust removal device 100 has the suction head structure 11 disposed on the side of the filter screen 200, with the two being parallel to each other. The dust suction port 111 of the suction head structure 11 faces the surface of the filter screen 200 and maintains a certain distance. Taking the cylindrical filter screen as an example, there is a rotating disk 50 below the filter screen 200. When cleaning the surface of the filter screen 200, the rotating disk 50 drives the filter screen 200 to rotate, so that the surface of the filter screen 200 generates continuous displacement relative to the suction head structure 11. At this time, the suction head structure 11 is synchronously turned on for operation. The "stubborn" dust on the surface of the filter screen 200 is first forcibly brushed off by the brush preset on the brush head 15, and then quickly sucked away from the dust suction port 111 beside the brush. The entire cleaning process is efficient and rapid. It can be understood that the dust removal device 100 is also applicable to the surface dust removal operation of the sheet-shaped filter screen. As long as the above rotating disk 50 is replaced with a rack or other transmission structure to drive the suction head structure 11 to move back and forth parallel on the surface of the filter screen 200, the dust removal operation can be achieved.

[0108] The suction head structure 11 mainly consists of a housing 115, a suction pipe 113, a brush head 15, a pressing plate 19, and a spring. The housing 115 includes a front shell 1153 and a rear shell 1155, which can fix the suction pipe 113 inside itself. The front shell 1153 forms a dust suction inlet 1151 and is internally divided into sealed cavities corresponding to each sub-pipe section 1131 respectively. At the same time, each sub-pipe section 1131 of the suction pipe 113 located in each segmented cavity of the housing 115 is provided with a dust suction port 111. The dust suction ports 111 of all the sub-pipe sections 1131 are selectively aligned and communicated with the dust suction inlet 1151. The sealed cavities formed by the internal partition of the housing 115 corresponding to the sub-pipe sections 1131 enable each sub-pipe section 1131 to work independently, ensuring that the length dimension of the dust suction port 111 is relatively small and the suction force is sufficiently concentrated. In this way, even the end of the suction pipe 113 far from the negative pressure device 13 can have sufficient negative pressure, thereby minimizing the negative pressure loss to the greatest extent. These dust suction ports 111 are divergently distributed at different angles in the circumferential direction of the suction pipe 113. When the suction pipe 113 is rotated by the adjustment component, every time it rotates a certain angle, the dust suction port 111 on a certain sub-pipe section 1131 will overlap with the dust suction inlet 1151 preset on the front shell 1153 to achieve alignment and communication, so that the inner cavity of the suction pipe is communicated with the outside world, thus forming a small dust suction unit. The other dust suction ports 111 distributed on the suction pipe 113 do not rotate to the position overlapping with the dust suction inlet 1151 of the front shell 1153, so they still stay in the sealed cavity and are not communicated with the outside world. In this way, it is ensured that the negative pressure of the negative pressure device 13 can only be released from the only dust suction port 111 communicated with the outside world, thereby achieving the dust suction purpose.

[0109] Meanwhile, to ensure the dust suction effect and improve the dust suction efficiency, brush heads 15 are provided at all positions of the front housing 1153 corresponding to the dust suction ports 111, and the brush heads 15 can automatically extend and retract, having an extended state and a retracted state. When the dust removal device 100 starts to work, the dust suction pipe 113 inside the suction head structure 11 rotates to alternatively align the dust suction port 111 of its sub-pipe section 1131 with the dust suction inlet 1151, achieving communication with the outside. The brush head 15 correspondingly arranged with the dust suction port 111 synchronously extends to the extended state and fits onto the surface of the filter screen 200. At this time, the dust suction pipe 113 stops rotating, and the rotating disk 50 starts to drive the filter screen 200 to rotate. The brush head 15 brushes off the dirt attached to the surface of the filter screen 200, and then it is quickly sucked away by the suction force generated by the dust suction port 111 at this position. After the filter screen 200 rotates one or more full circles, the dirt on the surface of the filter screen 200 on the path of the dust suction port 111 has been cleaned by the cooperation of the brush head 15 and the suction force of the dust suction port 111. Then, the dust suction pipe 113 rotates again, and the just-extended dust suction brush resets to the retracted state. At the same time, the dust suction port 111 of this section is misaligned and closed with the dust suction inlet 1151, and the dust suction port 111 of the next sub-pipe section 1131 is aligned with the dust suction inlet 1151 and opened. The corresponding brush head 15 extends to the extended state, the dust suction pipe 113 stops rotating, and then the rotating disk 50 starts to drive the filter screen 200 to rotate, and the cleaning work continues. And so on. Through the sequential operation of each sub-pipe section 1131 of the dust suction pipe 113, the comprehensive automatic dust removal operation on the surface of the filter screen 200 is finally completed, effectively removing the dust and dirt on the surface of the filter screen 200 and collecting the dust and dirt through the dust suction assembly 10, reducing the pollution of the air.

[0110] The above-mentioned extension and reset action of the brush head 15 is realized by the following structural setting: the brush head 15 includes a bracket body 151 and two support columns 153, the two support columns 153 are respectively connected to the two ends of the bracket body 151, and are extended on the side of the bracket body 151 facing away from the dust suction inlet 1151. At the same time, a groove structure is set at the corresponding two ends of each sub-tube segment 1131 of the dust suction pipe 113, and a cam 17 is provided in the groove structure. The axial direction of the cam 17 is parallel to the first direction, and one end of the support column 153 is also hidden in the groove structure and abuts against the surface of the cam 17. When the dust suction pipe 113 is driven by the adjustment component to rotate to a certain angle, the support column 153 of the brush head 15 will be slowly pushed out by the shape of the cam 17 corresponding to the groove. When the dust suction port 111 of the dust suction pipe 113 rotates to overlap with the dust suction inlet 1151 of the front shell 1153, the support column 153 abuts against the surface of the support area 171 of the cam 17, and the brush head 15 is pushed out to the highest point. At this time, the dust suction tube 113 stops rotating, and the brush head 15 is always in the extended state. On the other side of the bracket body 151, the support column 153 is provided, and spring columns 155 are provided at both ends. A spring is sleeved on the spring column 155, and a pressure plate 19 is provided on the top of the spring for limiting and preventing the spring from falling out. The pressure plate 19 is fixedly connected to the front shell 1153 and is located at the intersection of the dust suction inlet 1151 segment of the front shell 1153. When the brush head 15 is ejected, the front spring is in a compressed state. At this time, if the dust suction tube 113 continues to rotate a certain angle, the support column 153 will be separated from the surface of the support area 171 of the cam 17, and under the push of the spring, it will abut against the surface of the retracted area 173 of the cam 17, and the brush head 15 will be reset.

[0111] The present application also provides an air conditioning device, comprising the above-mentioned dust removal device 100. In addition, the air conditioning device also comprises a filter screen 200, and the filter screen 200 is used to filter and purify the air.

[0112] The air conditioning equipment may be, but is not limited to, an air purifier, an air conditioner, a circulating fan, an air humidifier, or other equipment that can improve the air quality, and is not specifically limited here.

[0113] Please also read Figure 15 The present application also provides a control method for a dust removal device 100.

[0114] Taking the working cycle of cleaning a filter screen 200 by a dust removal device 100 as an example, the control method of the dust removal device 100 may include the following steps: The suction pipe 113 rotates counterclockwise by Y1 degrees from the initial angle (default installation position) and then stops rotating, so that the No. 1 suction port 111 is opened, and the No. 1 brush head 15 is pushed out and pressed against the surface of the filter screen 200. The suction motor is started to start the suction work; the filter screen 200 starts to rotate, stops after continuously rotating X1 circles, and the suction motor is turned off; the suction pipe 113 continues to rotate counterclockwise by Y2 degrees and then stops rotating, so that the No. 1 suction port 111 is closed, the No. 1 brush head 15 is reset, the No. 2 suction port 111 is opened, and the No. 2 brush head 15 is pushed out and pressed against the surface of the filter screen 200; the suction motor is started to start the suction work; the filter screen 200 starts to rotate, stops after continuously rotating X2 circles, and the suction motor is turned off... The suction pipe 113 continues to rotate counterclockwise by Y(n - 1) degrees and then stops rotating, so that the (n - 1)th suction port 111 is closed, the (n - 1)th brush head 15 is reset, the nth suction port 111 is opened, and the nth brush head 15 is pushed out and pressed against the surface of the filter screen 200; the suction motor is started to start the suction work; the filter screen 200 starts to rotate, stops after continuously rotating Xn circles, and the suction motor is turned off; the suction pipe 113 continues to rotate counterclockwise by Yn degrees and then stops rotating, so that the nth suction port 111 is closed, and the nth brush head 15 is reset.

[0115] Among them, the dust removal device 100 includes a total of n suction ports 111, specifically the No. 1 suction port 111, the No. 2 suction port 111, the (n - 1)th suction port 111, and the nth suction port 111. Correspondingly, the dust removal device 100 includes a total of n brush heads 15, specifically the No. 1 brush head 15, the No. 2 brush head 15, the (n - 1)th brush head 15, and the nth brush head 15. Y1, Y2... Y(n - 1), and Yn can be different from each other, or partially the same, or all the same. Similarly, X1, X2... X(n - 1), and Xn can be different from each other, or partially the same, or all the same. Taking the example that the orientations of the suction ports 111 are evenly distributed, Y1, Y2... Y(n - 1), and Yn can be all the same.

[0116] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of concise description, 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, it should be considered as the scope recorded in this specification.

[0117] The above-described embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all fall within the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A dust removal device, characterized in that: Used for cleaning the filter screen (200), the dust removal device comprises: A suction head structure (11), the suction head structure (11) having at least two suction ports (111), all of the suction ports (111) being configured to selectively partially operate, and different suction ports (111) facing different areas of the filter screen (200) when in operation.

2. The dust removal device according to claim 1, characterized in that: The suction head structure (11) comprises a dust suction pipe (113) and an outer shell (115); the dust suction ports (111) are respectively arranged on the dust suction pipe (113); the outer shell (115) is sleeved outside the dust suction pipe (113); the outer shell (115) has a dust suction inlet (1151) facing the surface of the filter screen (200); and all the dust suction ports (111) are configured to be selectively partially aligned with and connected to the dust suction inlet (1151) for operation.

3. The dust removal device according to claim 2, characterized in that: The dust suction pipe (113) is rotatably arranged in the outer shell (115) around a first direction, and all the dust suction ports (111) are arranged at different angles in the circumference of the dust suction pipe (113) around the first direction; the dust suction inlet (1151) is arranged on one side of the outer shell (115) and is configured to be arranged vertically along the first direction.

4. The dust removal device according to claim 3, characterized in that: The dust suction pipe (113) comprises at least two sub-pipe sections (1131) arranged in sequence along the first direction, and each of the sub-pipe sections (1131) has a dust suction port (111).

5. The dust removal device according to claim 4, characterized in that: The dust removal device comprises at least two brush heads (15), each of the brush heads (15) being arranged on the outer shell (115), each of the brush heads (15) having an extended state and a retracted state, the extended state and the retracted state being switchable with each other, and in the extended state, the brush head (15) is in contact with the surface of the filter screen (200), and in the retracted state, the brush head (15) is spaced from the surface of the filter screen (200); All of the brush heads (15) are arranged in a one-to-one correspondence with all of the sub-tube segments (1131) along the first direction, and the dust removal device further comprises a pushing structure, wherein the pushing structure is configured to push the brush head (15) to the extended state when the dust suction port (111) of the sub-tube segment (1131) corresponding to the brush head (15) is aligned and connected with the dust suction inlet (1151), and to push the brush head (15) to the retracted state when the dust suction port (111) of the sub-tube segment (1131) corresponding to the brush head (15) is not aligned and connected with the dust suction inlet (1151).

6. The dust removal device according to claim 5, characterized in that: Each of the brush heads (15) comprises a support body (151) and two support columns (153), wherein the two support columns (153) are respectively connected to two ends of the support body (151) in the longitudinal direction; The pushing structure comprises a cam (17) and an elastic member (18); the cam (17) is provided at both ends of each sub-tube segment (1131); the support column (153) of each brush head (15) is supported on the surface of the cam (17) corresponding to the sub-tube segment (1131); the cam (17) has a support area (171) and a retracted area (173) on a circumferential surface surrounding the first direction; and in the circumferential direction surrounding the first direction, the retracted area (173) to the support area (171) is a smooth transition; when the support column (153) is supported on the support area (171), the brush head (15) is in the extended state; when the support column (153) is supported on the retracted area (173), the brush head (15) is in the retracted state; the elastic member (18) abuts against the brush head (15) and is matched to apply an elastic force toward the cam (17) to the brush head (15).

7. The dust removal device according to claim 4, characterized in that: The outer shell (115) has at least two sections of sealed cavities, and each of the sub-tube sections (1131) is correspondingly arranged in one section of the sealed cavity.

8. The dust removal device according to claim 1, characterized in that: The dust removal device also includes a brush head (15), and the brush head (15) is arranged on the suction head structure (11).

9. The dust removal device according to claim 8, characterized in that: The dust removal device comprises at least two brush heads (15), each of the brush heads (15) having an extended state and a retracted state that can be switched with each other, and in the extended state, the brush head (15) is in contact with the surface of the filter screen (200), and in the retracted state, the brush head (15) is spaced from the surface of the filter screen (200); All of the brush heads (15) are arranged in one-to-one correspondence with the filter screen (200) area that all of the dust suction ports (111) face when in operation, and are switched to the extended state when the corresponding dust suction port (111) is in operation, and are switched to the retracted state when the corresponding dust suction port (111) is not in operation.

10. The dust removal device according to claim 1, characterized in that: All of the dust suction ports (111) are configured to work selectively.

11. The dust removal device according to any one of claims 1 to 10, characterized in that: The dust removal device further comprises a driving assembly, the driving assembly being in driving connection with the filter screen (200) and / or the suction head structure (11), and being configured to be able to drive the suction head structure (11) and the filter screen (200) to move relative to each other, so that the suction head structure (11) moves along the surface of the filter screen (200).

12. The dust removal device according to claim 11, characterized in that: The area of ​​the filter (200) that each of the suction ports (111) faces when in operation is a cleaning area, and all of the cleaning areas are configured to be arranged in sequence along a first direction, and the first direction intersects with a moving direction of the suction head structure (11) relative to the filter (200).

13. The dust removal device according to claim 11, characterized in that: The dust removal device also includes a mounting seat (30), wherein the mounting seat (30) is used to mount the filter screen (200); The suction head structure (11) is arranged on the mounting seat (30) and is located on one side of the filter screen (200); the driving assembly is transmission-connected to the filter screen (200) and is configured to drive the filter screen (200) to rotate relative to the mounting seat (30).

14. An air conditioning device, characterized in that: Comprising the dust removal device as described in claims 1-13.

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