CN216924731U - Filter screen assembly and air conditioner indoor unit - Google Patents

Abstract

The application relates to the technical field of air conditioners and discloses a filter screen assembly and an air conditioner indoor unit. The filter screen assembly comprises a filter screen frame group, a filter screen, a rotating shaft and a driving device. The filter screen frame group comprises a first frame and a second frame which are connected in a clamping manner, and a limiting space is enclosed by the first frame and the second frame; the filter screen is positioned in the limiting space and comprises a guide rail; the rotating shaft is in transmission connection with the guide rail; the driving output end of the driving device is connected with the rotating shaft, and the driving device drives the rotating shaft to rotate so as to drive the filter screen to slide in the limiting space; wherein, the filter screen is flexible filter screen, and first frame and second frame are the grid shape frame. The utility model provides a filter screen frame group occupation space is little, and just through installing filter screen frame at the air conditioning indoor set casing inboard that has two or more wind gaps, just can realize that the filter screen slides at two or more wind gaps side to make required wind gap be in dodge state or filtration state, thereby satisfy the return air filtration demand of the air conditioning indoor set of reversible air supply.

Description

Filter screen assembly and air conditioner indoor unit

Technical Field

The application relates to the technical field of air conditioners, for example to a filter screen assembly and an air conditioner indoor unit.

Background

With the improvement of living standard, the air conditioner becomes an indispensable household appliance for improving the quality of life, and the application is wide. The indoor air conditioner installed on the wall above a room or the suspended ceiling of the room is mainly lateral air outlet, the density of hot air is low during heating, the hot air floats upwards through the lateral air outlet, the hot air cannot be blown to a user located in the lower region of the room, the temperature distribution in the room is uneven, the problem of up-heating and down-cooling is caused, and particularly, the experience feeling is poor for a user who is easy to feel cold with hands and feet. In order to improve the comfort of the air conditioner, an air conditioner indoor unit capable of discharging air bidirectionally is available, and two air discharging modes of lower air discharging and side air discharging can be realized. The air conditioner indoor unit with one-way air outlet is provided with a filter screen at an air return opening generally, so that air flow entering the air conditioner indoor unit is filtered, and impurities are prevented from entering an air duct component. For the indoor unit of the air conditioner with bidirectional air outlet, because the air outlet is bidirectional, a filter screen assembly capable of being switched in a reversing way needs to be provided to be matched with the indoor unit.

In the prior art, in order to meet the air return requirement of an air conditioner indoor unit capable of supplying air bidirectionally, an air conditioner is disclosed, which comprises an air port, a filtering device and an air guide mechanism. The filtering device has a filtering state for shielding the air port and an avoiding state for avoiding the air port; the air guide mechanism is arranged at the air inlet and is connected with the filtering device, and the air guide mechanism drives the filtering device to switch between a filtering state and an avoiding state; when the air inlet is used as an air return inlet, the air guide mechanism drives the filtering device to be in a filtering state, and when the air inlet is used as an air outlet, the air guide mechanism drives the filtering device to be in an avoiding state. The wind gap department is provided with the pivot, and wind guiding mechanism sets up in the pivot, and can revolute the pivot free rotation. The air guide mechanism is provided with a first edge and a second edge which are opposite, the first edge is arranged on the rotating shaft, and the second edge is connected with the filtering device. The air guide mechanism is an arc-shaped air guide plate, when the filtering device is in an avoiding state, the filtering device is deformed and attached to the arc-shaped air guide plate, and when the filtering device is in a filtering state, the filtering device is flattened to completely shield the air port.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

in the process that the air conditioner indoor unit drives the filter screen to move and switch through the movement of the air deflector, a certain rotating space is needed by the air deflector in the shell. Compared with a wind pipe machine without a wind deflector and with the same wind supply efficiency, the wind pipe machine has the advantages that the occupied space is large, and bad experience is brought to users.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a filter screen assembly and an air conditioner indoor unit, wherein a filter screen is positioned in a limiting space of a filter screen frame set, and a rotating shaft is in transmission connection with a guide rail on the filter screen; the driving device drives the rotating shaft to rotate, so that the filter screen is driven to slide in the limiting space. The utility model provides a well filter screen frame group occupation space is little, and just through installing filter screen frame at the air-conditioning indoor set casing inboard that has two or more wind gaps, just can realize that the filter screen slides at two or more wind gaps side to make required wind gap be in dodge state or filtration state, thereby satisfy the return air filtration demand of the air-conditioning indoor set of reversible air supply.

In some embodiments, the screen assembly includes a screen frame set, a screen, a spindle, and a drive. The filter screen frame group comprises a first frame and a second frame which are connected in a clamping manner, and a limiting space is enclosed by the first frame and the second frame; the filter screen is positioned in the limiting space and comprises a guide rail; the rotating shaft is in transmission connection with the guide rail; the driving output end of the driving device is connected with the rotating shaft, and the driving device drives the rotating shaft to rotate so as to drive the filter screen to slide in the limiting space; wherein, the filter screen is flexible filter screen, and first frame and second frame are the grid shape frame.

In some optional embodiments, the first frame and the second frame are both L-like frames, so that the limiting space includes a horizontal track section, an arc track section and a vertical track section which are sequentially communicated, and the filter screen is slidably switched between the horizontal track section and the vertical track section.

In some optional embodiments, the rotating shaft comprises a first rotating shaft and a second rotating shaft, and the first rotating shaft and the second rotating shaft are supported and limited on the first frame through a limiting lock catch.

In some optional embodiments, a concave arc section is arranged at a corner of the L-like frame of the first frame, and a convex arc section is arranged at a corner of the L-like frame of the second frame, wherein the concave arc section and the convex arc section enclose the accommodating cavity of the first rotating shaft.

In some optional embodiments, the limiting lock catch comprises a clamping portion clamped on the first frame to form a shaft hole, and the rotating shaft penetrates through the shaft hole to provide supporting limitation for the rotating shaft.

In some embodiments, an air conditioning indoor unit includes a housing, a filter screen assembly as described above, and a sensor. The shell comprises a side plate and a bottom plate which are vertically arranged, the side plate is provided with a first air port, and the bottom plate is provided with a second air port; filter screen frame group sets up in first wind gap and second wind gap side, and the pivot rotates so that the filter screen switches between first wind gap and second wind gap and removes, and sensor quantity is two, is located the terminal position wall of horizontal track section and vertical track section respectively, and the sensor is used for carrying out spacing restraint to two terminal positions of filter screen.

In some optional embodiments, the following dimensional relationships exist among some components of the air conditioning indoor unit:

and the number of the first and second electrodes,

wherein L is the length of the filter screen, L₁Is the length of a horizontal track section, L₂Is the length of a vertical track section, R₁Is the radius of the shaft and d is the thickness of the sensor.

In some alternative embodiments, the flexible screen includes a flexible base and two or more rails positioned on top of the flexible base, wherein the horizontal rail segments have a spatial width greater than the thickness of the flexible screen.

In some alternative embodiments, H₂＝H₁+a，a∈[0.2,1](ii) a And, H₂＝H₃(ii) a Wherein H₁Is the thickness of the flexible screen, H₂Is the spatial width of the horizontal track section, H₃Is the spatial width of the vertical track segment.

In some alternative embodiments, the guide rail comprises a plurality of convex teeth, the rotating shaft comprises two or more gear teeth which are in one-to-one meshing transmission with the guide rail, the reference circle of the gear teeth is a first reference circle, and the reference circle of the convex teeth in the arc-shaped track section is a second reference circle; wherein the first reference circle is tangent to the second reference circle.

The filter screen assembly and the air conditioner indoor unit provided by the embodiment of the disclosure can realize the following technical effects:

the filter screen assembly comprises a filter screen frame group, a filter screen, a rotating shaft and a driving device. The filter screen frame group comprises a first frame and a second frame which are connected in a clamping manner, and the filter screen is positioned in a limiting space enclosed by the first frame and the second frame; the filter screen is provided with a guide rail; the rotating shaft is in transmission connection with the guide rail on the filter screen; the driving device drives the rotating shaft to rotate, so that the filter screen is driven to slide in the limiting space; wherein, the filter screen is flexible filter screen to turn to the switching between different wind gaps, first frame and second frame are the grid shape frame, when installing in the indoor set casing of air conditioning, the air current circulation of the wind gap department of being convenient for. The utility model provides a well filter screen frame group occupation space is little, and just through installing filter screen frame at the air-conditioning indoor set casing inboard that has two or more wind gaps, just can realize that the filter screen slides at two or more wind gaps side to make required wind gap be in dodge state or filtration state, thereby satisfy the return air filtration demand of the air-conditioning indoor set of reversible air supply.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

fig. 1 is a schematic partial structure diagram of an air conditioner indoor unit provided in an embodiment of the present disclosure;

fig. 2 is a schematic cross-sectional view of a local air conditioning indoor unit according to an embodiment of the present disclosure;

fig. 3 is a schematic structural view of a screen frame set and a driving device provided in an embodiment of the disclosure;

FIG. 4 is a schematic structural diagram of a filter screen, a rotating shaft and a driving device provided by the embodiment of the disclosure;

FIG. 5 is a schematic view of a partial structure of a filter screen and a rotating shaft provided in the embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a side plate and a bottom plate of an indoor unit of an air conditioner provided by the embodiment of the disclosure;

fig. 7 is a schematic view of a partial structure of a screen frame set provided by an embodiment of the present disclosure;

fig. 8 is an overall structural schematic diagram of a first frame provided by the embodiment of the present disclosure;

fig. 9 is a schematic partial structural view of a limiting member and a first frame according to an embodiment of the disclosure;

fig. 10 is a schematic view of the overall structure of a second frame provided in the embodiment of the present disclosure;

fig. 11 is a schematic partial structural view of a limiting member and a second frame according to an embodiment of the disclosure;

fig. 12 is a schematic view of an overall structure of a limiting member according to an embodiment of the disclosure;

FIG. 13 is a schematic diagram illustrating an overall structure of a gear tooth and a limiting member according to an embodiment of the present disclosure;

FIG. 14 is a schematic view of the overall structure of a rotating shaft provided in the embodiment of the present disclosure;

fig. 15 is a partial structural relationship diagram of an air conditioning indoor unit according to an embodiment of the present disclosure;

fig. 16 is a partial structural relationship diagram of a filter screen and a rotating shaft provided in the embodiment of the present disclosure.

Reference numerals are as follows:

1: a housing; 11: a first tuyere; 12: a second tuyere; 13: a side plate; 14: a base plate; 141: a slide rail; 2: a screen frame set; 3: a first frame; 31: a side frame portion; 32: a bottom frame portion; 33: an arc-shaped portion; 34: a chute; 4: a second frame; 5: filtering with a screen; 51: a guide rail; 511: a convex tooth; 6: a rotating shaft; 61: gear teeth; 611: a wheel-shaped tooth portion; 612: a connecting portion; 62: a shaft cylinder; 7: a drive device; 8: limiting and locking; 91: a first dust collecting box; 92: a second dust collecting box; 10: and a brush.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the disclosed embodiments can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more unless otherwise specified.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

With reference to fig. 1 to 16, an embodiment of the present disclosure provides a filter screen assembly and an air conditioning indoor unit.

The air-conditioning indoor unit in this application includes wall-mounted air-conditioning indoor unit and air duct type air-conditioning indoor unit. The embodiments of the present disclosure will be described in detail by taking an air duct machine as an example.

The air inlet and the air outlet of the traditional air conditioner indoor unit are mutually independent, the air inlet is only used for air inlet, the air outlet is only used for air outlet, the air outlet mode is single, and the space utilization rate is low. Based on the air duct type air conditioner indoor unit that comes out newly in recent years, can carry out the switching-over air supply of side wind gap and leeward mouth, nevertheless when the wind gap was as the air intake air, need increase filter screen 5 and carry out filtration or block the dust, because after assembling filter screen 5, the windage is great, influences the air outlet air output, can not use filter screen 5 when the air-out, leads to air intake and air outlet to lead to the problem that can not share because of the difficult switching of filter screen 5. Although some filter assemblies can realize the switching between the filtering and avoiding states of the filter screen 5 at the air port, the filter screen 5 is mostly turned over or the filter screen 5 is driven to move by the air guide mechanism. The existing switchable filter screens 5 need to additionally provide an avoiding space for the filter screens 5, the space occupation is large, correspondingly, the air supply efficiency of the indoor unit of the air conditioner is low, and the user requirements cannot be met.

In the air-conditioning indoor unit provided by the embodiment of the disclosure, the filter screen frame group 2 occupies a small space. The filter screen frame is arranged on the inner side of the shell 1 of the indoor air conditioner with two or more air ports, so that the filter screen 5 can slide on the two or more air ports, the required air ports are in an avoiding state or a filtering state, and the return air filtering requirement of the indoor air conditioner capable of supplying air in a reversible manner is met.

The filter screen assembly provided by the embodiment of the disclosure comprises a filter screen frame group 2, a filter screen 5, a rotating shaft 6 and a driving device 7. The filter screen frame group 2 comprises a first frame 3 and a second frame 4 which are connected in a clamping manner, and a limited space is enclosed by the first frame 3 and the second frame 4; the filter screen 5 is positioned in the limiting space, and the filter screen 5 comprises a guide rail 51; the rotating shaft 6 is in transmission connection with the guide rail 51; the driving output end of the driving device 7 is connected with the rotating shaft 6, and the driving device 7 drives the rotating shaft 6 to rotate, so that the filter screen 5 is driven to slide in the limiting space; wherein, the filter screen 5 is flexible filter screen, and first frame 3 and second frame 4 are the grid frame.

Specifically, the screen frame assembly 2 of the present application may be installed in an air conditioner indoor unit having two vents or a plurality of vents. When the filter screen frame set 2 is applied to an air conditioner indoor unit with double air ports, the filter screen frame set 2 is arranged on the inner wall side of the shell 1 where the two air ports are located, so that the filter screen 5 can slide and switch on the two air port sides, one air port is in a filtering state, and the other air port is in an avoiding state; or, two filter screen frame sets 2 are respectively installed on the inner side walls of the casing 1 where the two air ports are located, so as to switch the filtering state and the avoiding state of different target air ports in a targeted manner. When the air conditioner indoor unit is applied to the air conditioner indoor unit with multiple air ports, the filter screen frame group 2 is installed on the inner wall side of the shell 1 where the two or more air ports are located, so that the filter screen 5 can slide and switch on the two or more air ports, the air ports at the target positions of the target quantity are in an avoiding state, and the air ports at other positions are in an avoiding state. It can be understood that, through the filter screen frame set 2 that sets up the different casing 1 of laminating, can satisfy the return air filtration demand of two-way air change air conditioning indoor set or multidirectional air change air conditioning indoor set, and the filter screen 5 of this application need not to reserve dodges the space, and occupation space is little.

Filter screen 5 is flexible filter screen to make filter screen 5 not only can linear motion, can adapt to different curved surface motion moreover, through place filter screen 5 in the spacing space that first frame 3 and second frame 4 enclose and close, with provide the bearing capacity and play spacing effect to filter screen 5. The filter frame assembly 2 is arranged in a grid structure so that the filter frame assembly 2 on the air inlet side can be used for air flow to pass through. The rotating shaft 6 is positioned in the limiting space and is parallel to the width direction of the filter screen 5. The rotating shaft 6 is in transmission connection with a guide rail 51 on the filter screen 5, and the driving device 7 drives the rotating shaft 6 to axially rotate so as to drive the filter screen 5 to reciprocate along the direction of the guide rail 51. Wherein, drive arrangement 7 is fixed on filter screen frame group 2, and drive arrangement 7 includes driving motor.

Optionally, the first frame 3 and the second frame 4 are both L-like frames, so that the limiting space includes a horizontal track section, an arc track section and a vertical track section which are sequentially communicated, and the filter screen 5 is slidably switched between the horizontal track section and the vertical track section. The shell 1 of the existing air pipe type air conditioning indoor unit comprises a side plate 13 and a bottom plate 14 which are vertically arranged, wherein the side plate 13 is provided with a first air opening 11, and the bottom plate 14 is provided with a second air opening 12. Through all setting up first frame 3 and second frame 4 to type L shape frame, not only can make filter screen frame set 2 laminate on curb plate 13 and bottom plate 14, can make spacing space be type L shape space moreover to spacing filter screen 5's moving direction. The L-shaped limiting space comprises a horizontal track section, an arc track section and a vertical track section which are sequentially communicated, wherein the horizontal track section is positioned above the bottom plate 14, the arc track section is positioned at a corner between the bottom plate 14 and the side plate 13, and the vertical track section is positioned on the inner side of the side plate 13. The first air port 11 can be in an avoiding state and the second air port 12 is in a filtering state through the reciprocating movement of the filter screen 5 in the horizontal track section and the vertical track section; or, the first air port 11 is in a filtering state, and the first air port 11 is in an avoiding state.

Alternatively, the first frame 3 includes a side frame portion 31, a bottom frame portion 32, and an arc portion 33. The side frame portion 31 is positioned at one side of the side plate 13; the bottom frame part 32 is positioned at one side of the bottom plate 14, and the bottom frame part 32 is vertical to the side frame part 31; the arc part 33 is connected with the side frame part 31 and the bottom frame part 32, and the rotating shaft 6 is carried on the arc part 33; the arc portion 33 connects the side frame portion 31 and the bottom frame portion 32 in a smooth transition manner, so that the filter screen 5 can change direction smoothly.

Optionally, the rotating shaft 6 comprises a first rotating shaft 6 and a second rotating shaft 6, and the first rotating shaft 6 and the second rotating shaft 6 are supported and limited on the first frame 3 through a limiting lock catch 8. The first rotating shaft 6 and the second rotating shaft 6 are both located and limited in the limiting space and are parallel to the width direction of the indoor unit of the air conditioner. The guide rail 51 on the filter screen 5 is perpendicular to the first rotating shaft 6 and the second rotating shaft 6 and is in transmission connection with the two rotating shafts 6. Through the synchronous equidirectional rotation of two pivot 6, can make the more steady operation of flexible filter screen.

Optionally, a concave arc section is provided at a corner of the L-like frame of the first frame 3, and a convex arc section is provided at a corner of the L-like frame of the second frame 4, wherein the concave arc section and the convex arc section enclose the accommodating cavity of the first rotating shaft 6. The first rotary shaft 6 is located at a corner between the bottom plate 14 and the side plate 13, and the screen 5 is located between the first rotary shaft 6 and the first frame 3. The cylindrical rotating shaft 6 is inosculated with the arc of the concave arc section of the first frame 3, so that the filter screen 5 can smoothly slide to the vertical track section from the horizontal track section or smoothly slide to the horizontal track section from the vertical track section, and the direction change of the filter screen 5 is smoother. The second rotating shaft 6 is located above the bottom plate 14 to allow the filter screen 5 to move more smoothly. In this way, a powerful driving force can be provided for the movement of the sieve 5, while the problems of jamming and stacking of the sieve 5 can be avoided.

Optionally, the limit lock catch 8 comprises a clamping portion clamped on the first frame 3 to form a shaft hole, and the shaft hole is penetrated by the rotating shaft to limit the support of the rotating shaft. When the pivot 6 overlength of machine in air conditioning, or the machine in air conditioning includes two or more pivots 6, can carry out spacing fixed better with one or more pivots 6 through spacing hasp 8. Therefore, the rotating shaft 6 can axially rotate around the central axis, and the problem that the filter screen 5 is clamped due to the deviation of the axis is avoided.

The air conditioner indoor unit provided by the embodiment of the disclosure comprises a shell 1, the filter screen assembly and the sensor. The shell 1 comprises a side plate 13 and a bottom plate 14 which are vertically arranged, wherein the side plate 13 is provided with a first air port 11, and the bottom plate 14 is provided with a second air port 12; filter screen frame group 2 sets up in first wind gap 11 and second wind gap 12 side, and pivot 6 rotates so that filter screen 5 switches between first wind gap 11 and second wind gap 12 and removes, and sensor quantity is two, is located the terminal position wall of horizontal track section and vertical track section respectively, and the sensor is used for carrying out spacing restraint to two terminal positions of filter screen 5. Two sensors are respectively arranged at two end parts of the limiting space, so that the two end positions of the reciprocating motion of the filter screen 5 can be limited and restrained, and the pressure signal of the sensor is used for controlling the filter screen 5 to drive the motor to act or stop. Like this, can be according to the different air-out modes of machine in the air conditioning, more accurate control filter screen 5 slides and filters to the return air inlet side, dodges the air outlet position.

Optionally, the base plate 14 is provided with slide rails 141 and the screen frame set 222 is provided with slide slots, which can slide along the slide rails 141. Since the filter frame assembly 22 is only slidably connected to the bottom plate 14, the filter frame assembly 22 can be horizontally pulled out of the indoor unit after the side plate 13 is removed from the casing 1. The filter screen 5 of this application does not adopt fasteners such as bolt to install filter screen 5 to when having avoided carrying out the dismouting to the filter screen accessory, the fastener such as bolt quantity is many and the loaded down with trivial details problem of dismouting when fixed filter screen 5 or filter screen accessory. Like this, can promote the dismouting efficiency of filter screen 5 and accessory greatly.

Optionally, the following dimensional relationships exist among parts of the air conditioning indoor unit:

and the number of the first and second electrodes,

wherein L is the length of the filter screen 5, L₁Is the length of a horizontal track section, L₂Is the length of a vertical track section, R₁Is the radius of the shaft 6 and d is the thickness of the sensor. Therefore, the filter screen 5 can be prevented from sliding off the first rotating shaft 6 and the second rotating shaft 6, and the transmission connection between the rotating shafts 6 and the filter screen 5 is more stable.

Optionally, the flexible screen comprises a flexible base and two or more rails 51 on top of the flexible base. Wherein, the space width of horizontal track section is greater than the thickness of flexible filter screen. Two or many guide rails 51 can make flexible filter screen along guide rail 51 direction removal, avoid causing the problem that the filter screen 5 deviates unable removal because of single guide rail 51 derail.

Alternatively, H₂＝H₁+ a, a ∈ [0.2 mm, 1 mm ]](ii) a And, H₂＝H₃(ii) a Wherein H₁Is the thickness of the flexible screen H₂Is the spatial width of the horizontal track section, H₃Is the spatial width of the vertical track segment. The a can be selected from 0.4 mm, 0.6 mm and 0.8 mm, and can be specifically selected according to the configuration and the internal layout of the shell 1 of the indoor unit of the air conditioner, and is not specifically limited herein as long as the a is within a set range. Therefore, the problem that the flexible filter screen is not smooth in movement due to the fact that the limiting space is too small can be prevented, and the problem that the filter screen 5 is separated from the rotating shaft 6 or stacked due to the fact that the limiting space is too large can be avoided. Optionally, a lobe thickness D₁The size of (A) satisfies: d₁E.g. [2 mm, 3 mm ]]Thickness h of the grid₀The size of (A) satisfies: h is₀E [0.3 mm, 0.5 mm ∈]。

Alternatively, the guide rail 51 includes a plurality of teeth 511, and the shaft 6 includes two or more teeth 61 that are in meshing engagement with the guide rail 51. Wherein, the reference circle of the gear teeth 61 is a first reference circle, and the reference circle of the convex teeth 511 on the arc track section is a second reference circle; wherein the first reference circle is tangent to the second reference circle. The filter screen 5 comprises a mesh and a filter sheet. The grid comprises two or more guide rails 51, and each guide rail 51 is composed of convex teeth 511 which are arranged in a straight line shape at equal intervals. The shaft 6 includes gear teeth 61 and a shaft cylinder 62. The number of the gear teeth 61 is two or more, a shaft cylinder 62 is fixed between the adjacent gear teeth 61, and the driving motor drives the rotating shaft 6 to rotate, so that the filter screen 5 is driven to reciprocate in the filter screen frame group 2.

Specifically, both ends of the rotating shaft 6 are provided with gear teeth 61, and the middle part of the rotating shaft 6 is provided with one or more gear teeth 61. The gear 61 includes a gear tooth portion 611 and a connecting portion 612, the connecting portion 612 is located on both sides of the gear tooth portion 611, and the gear 61 is integrally formed. The connecting portion 612 is provided with a buckle, the inner wall of the shaft cylinder 62 is provided with a bayonet, and the connecting portion 612 is in limited clamping in the shaft cylinder 62, so that the gear teeth 61 are fixedly connected with the shaft cylinder 62, and the gear teeth 61 and the shaft cylinder 62 are prevented from generating rotating friction force. Compare in traditional air conditioning indoor set, the removal that filter screen 5 just can be carried out to the filter screen subassembly and the air conditioning indoor set of this application need not wind guiding mechanism, has not only saved the inner space of air conditioning indoor set, can satisfy the return air filter demand of the air conditioning indoor set of reversible air supply moreover.

The first rotary shaft 6 is located at a corner between the bottom plate 14 and the side plate 13, and a second pitch circle of the convex teeth 511 at the corner of the filter screen 5 is tangent to the first pitch circle of the gear teeth 61. Like this, can guarantee that the movement track of filter screen 5 in the corner is along the arc surface of pivot 6 all the time, avoid filter screen 5 to appear the problem of taking off the tooth.

Optionally, the thickness of the mesh grid is smaller than or equal to the distance between the rotating shaft 6 and the first frame 3, so that the filter screen 5 can slide away from the rotating shaft 6. When the filter screen assembly needs to be cleaned integrally or elements need to be maintained and replaced, the filter screen assembly is detached from the indoor unit of the air conditioner, and the second frame 4 is detached from the first frame 3. Through drive arrangement 7 drive pivot 6 rotation, can drive filter screen 5 and slide from pivot 6 to can dismantle filter screen 5 from first frame 3.

Optionally, the air conditioning indoor unit further comprises a brush 10 fixed between the first frame 3 and the bottom plate 14, and the brush 10 is used for cleaning the filter screen 5.

Optionally, the indoor unit of the air conditioner further includes a first dust box 91 and a second dust box 92. The first dust box 91 and the second dust box 92 are clamped on the bottom plate 14 of the shell 1, and a brush 10 is fixed in each dust box. The brush 10 cleans the moving screen 5 and sweeps foreign substances on the moving screen 5 into the dust box.

Optionally, the brush 10 includes a brush 10 body and a brush head. The brush 10 body is a strip-shaped structure, and the brush 10 is parallel to the rotating shaft 6. The quantity of brush head is a plurality of, and a plurality of brush head intervals set up in the upper end of brush 10 body, and a plurality of brush head one-to-one gomphosis are in a plurality of grids of first frame 3. Therefore, the brush 10 can penetrate through the first frame 3 to brush and clean the moving filter screen 5 without occupying extra space. Specifically, the first dust collecting box 91 is used for collecting impurities on the filter screen 5 at the side of the first tuyere 11; the second dust box 92 is used for collecting impurities on the screen 5 at the side of the second tuyere 12.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and illustrated in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A screen assembly, comprising:

the filter screen frame group comprises a first frame and a second frame which are connected in a clamping manner, and a limiting space is enclosed by the first frame and the second frame;

the filter screen is positioned in the limiting space and comprises a guide rail;

the rotating shaft is in transmission connection with the guide rail; and the combination of (a) and (b),

the driving device is used for driving the rotating shaft to rotate so as to drive the filter screen to slide in the limiting space;

the filter screen is a flexible filter screen, and the first frame and the second frame are both grid-shaped frames.

2. The screen assembly of claim 1,

first frame and second frame are the L-shaped frame of class to make spacing space is including the horizontal track section, arc track section and the vertical track section that communicate in proper order, the filter screen slidable switch in horizontal track section and vertical track section.

3. The screen assembly of claim 2,

the rotating shaft comprises a first rotating shaft and a second rotating shaft, and the first rotating shaft and the second rotating shaft are supported and limited on the first frame through limiting lock catches.

4. The screen assembly of claim 3,

concave arc sections are arranged at the corners of the L-shaped frame of the first frame, convex arc sections are arranged at the corners of the L-shaped frame of the second frame,

the concave arc section and the convex arc section enclose an accommodating cavity of the first rotating shaft.

5. The screen assembly of claim 3,

the limiting lock catch comprises a clamping portion, the clamping portion is clamped on the first frame to form a shaft hole, and the shaft hole is penetrated through the rotating shaft to limit the supporting of the rotating shaft.

6. An indoor unit of an air conditioner, comprising:

the shell comprises a side plate and a bottom plate which are vertically arranged, the side plate is provided with a first air port, and the bottom plate is provided with a second air port;

the screen assembly of any of claims 2 to 5, said screen frame set being disposed at the side of a first air port and a second air port, said spindle being rotated to shift said screen between said first air port and said second air port, and,

the sensors are arranged on the wall surfaces of the end positions of the horizontal track section and the vertical track section respectively, and are used for limiting and constraining the two end positions of the filter screen.

7. An air conditioning indoor unit according to claim 6, wherein the following dimensional relationships exist between the parts of the air conditioning indoor unit:

and the number of the first and second groups is,

wherein L is the filterLength of mesh, L₁Is the length of the horizontal track section, L₂Is the length, R, of the vertical track section₁Is the radius of the shaft and d is the thickness of the sensor.

8. An indoor unit of an air conditioner according to claim 7,

the flexible filter screen comprises a flexible base body and two or more guide rails positioned on the upper part of the flexible base body,

wherein the spatial width of the horizontal track section is greater than the thickness of the flexible screen.

9. An indoor unit of an air conditioner according to claim 8,

H₂＝H₁+a，a∈[0.2,1](ii) a And, H₂＝H₃；

Wherein H₁Is the thickness of the flexible screen H₂Is the spatial width, H, of the horizontal track section₃Is the spatial width of the vertical track section.

10. An indoor unit of an air conditioner according to claim 8,

the guide rail comprises a plurality of convex teeth, the rotating shaft comprises two or more gear teeth which are in one-to-one corresponding meshing transmission with the guide rail, the reference circle of the gear teeth is a first reference circle, and the reference circle of the convex teeth on the arc-shaped track section is a second reference circle;

wherein the first reference circle is tangent to the second reference circle.

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