CN219242289U - Fan structure for air conditioner dust collection, dust collection device and air conditioner - Google Patents

Abstract

The utility model relates to an air conditioner dust removal technical field discloses a fan structure for air conditioner dust absorption, and the fan structure includes the fan shell, and it includes the first side casing that stacks along fan axis direction and leans on setting up, middle spiral case and second side casing, and wherein first side casing cover is located middle spiral case's spiral case air intake side, and second side casing locates the one side that deviates from spiral case air intake, and its shell wall extension scope covers at least part fan shell and the butt position under the air conditioner assembled state; the wind wheel is rotatably arranged in the middle volute to generate dust collection wind power. The fan structure that this application provided sets up the spiral case between two side casings, utilizes two side casings to replace spiral case and the indoor unit organism assembly butt of air conditioner for become side casing because of the extrusion stress effect object that vibrations produced, and then play the guard action to the spiral case, reduced the appearance of fan spiral case deformation condition, effectively ensured the safe and stable operation of fan. The application also discloses dust extraction and air conditioner.

Description

Fan structure for air conditioner dust collection, dust collection device and air conditioner

Technical Field

The application relates to the technical field of air conditioner dust removal, for example, to a fan structure for air conditioner dust collection, a dust collection device and an air conditioner.

Background

With the improvement of living standard, the air conditioner becomes an indispensable household appliance for improving living quality, and is widely applied. The air conditioner indoor unit is arranged on the wall surface above the room or on the ceiling of the room so as to realize the switching of the airflow directions of the air conditioner indoor unit. The filter screen of filter screen dust absorption mechanism is portable filter screen, and under the wind gap air inlet state, the filter screen removes the wind gap side in order to shield the wind gap, and under the wind gap air outlet state, the filter screen removes to keeping away from the wind gap side to dodge the wind gap, thereby satisfy the demand of the air conditioning indoor set of reversible air supply. However, after the air conditioner is used for a period of time, dust is accumulated on the surface of the filter screen, and more flocks are accumulated on the surface of the filter screen, so that the air conditioner is not cleaned for a long time, and bacteria can be bred to generate peculiar smell, the air quantity is reduced, and the refrigerating and heating effects are affected.

In the related art, aiming at the dust accumulation problem of an air conditioner filter screen, a part of air conditioner products are newly added with a dust removal module, the dust removal module corresponds to the filter screen, and the filter screen can be cleaned in time when a large amount of dust is accumulated on the surface of the filter screen, so that meshes on the surface of the filter screen are prevented from being blocked, and the cleanliness and the air permeability of the filter screen are ensured. In terms of dust removal mode, the dust removal module can be divided into a plurality of dust removal modes such as brushing dust removal, negative pressure suction dust collection and the like.

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:

for the type of dust removal module which utilizes negative pressure suction to carry out dust collection, because of the compact design requirement of air conditioning components, a fan component which generates suction in the dust removal module is generally tightly attached to an air conditioning indoor unit, and when in practical application, the fan component generates vibration during operation, and the fan component and the indoor unit component which is attached to the fan component are easy to have stress extrusion deformation and other conditions, such as the problem that even the fan component interferes with a fan blade after the extrusion deformation of a fan volute, so that the normal use of the dust removal module is affected.

It should be noted that the information disclosed in the foregoing background section is only for enhancing understanding of the background of the present application and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art.

Disclosure of Invention

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, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.

The embodiment of the disclosure provides a fan structure for air conditioner dust collection, a dust collection device and an air conditioner, and aims to solve the technical problems of extrusion deformation and the like of a fan volute of the air conditioner dust collection device and an air conditioner body in the prior art.

In an embodiment of the first aspect, a fan structure for air conditioning and dust collection includes:

the fan shell comprises a first side shell, a middle volute and a second side shell which are overlapped and arranged along the axial direction of the fan, wherein the first side shell is covered on the side of a volute air inlet of the middle volute, the second side shell is arranged on one side, away from the volute air inlet, and the extending range of the shell wall of the second side shell covers at least part of the abutting part of the fan shell in the assembling state of the air conditioner;

the wind wheel is rotatably arranged in the middle volute to generate dust collection wind power.

In some alternative embodiments, the first side housing comprises:

a side casing main body part which is attached to the side wall of the middle volute at the side of the volute air inlet;

the induced air shell part is formed in an outward protruding manner relative to the side shell main body part along the axial direction of the fan and is configured to be provided with an induced air cavity which is open and closed towards the air inlet of the volute;

wherein the edge of the side shell main body part is provided with a dust guiding opening communicated with the air guiding cavity.

In some alternative embodiments, a positioning baffle is formed on the shell wall of the side shell main body part facing the middle volute, and the positioning baffle is formed by extending along the circumferential direction of the opening of the induced air cavity and is used for forming a limit stop for the outer peripheral side of the middle volute.

In some alternative embodiments, the first side casing has a first dust discharging part, the second side casing has a second dust discharging part, and the first dust discharging part and the second dust discharging part are enclosed together to form a dust discharging opening, and the dust discharging opening is communicated with the volute air outlet of the middle volute.

In some alternative embodiments, the first side casing and the second side casing form a clamping fit through a buckle assembly, the buckle assembly comprises at least two groups of buckle pieces, and the two groups of buckle pieces are respectively arranged on two surrounding engagement boundaries of the dust exhaust port.

In an embodiment of the second aspect, a dust extraction for an air conditioner comprises a blower structure as shown in any one of the embodiments of the first aspect.

In an embodiment of the third aspect, an air conditioner includes:

an air conditioner base;

as the dust collection device shown in the second embodiment, the fan structure of the dust collection device is disposed at one end of the air conditioner base in the longitudinal direction, and the second side housing is located at one side close to the air conditioner base.

In some alternative embodiments, the air conditioning base is secured to the fan structure by a screw and/or snap fit.

In some alternative embodiments, the air conditioning base has an integrally formed back base portion and lower base portion, the blower structure being threadably connected to the back base portion by a first screw structure and being threadably connected to the lower base portion by a second screw structure.

In some alternative embodiments, the air conditioner base is further formed with one or more limiting clamping grooves, and a part of edges of the fan shell are clamped in the limiting clamping grooves and clamped and limited in the stacking direction of the first side shell and the second side shell.

The fan structure for air conditioner dust collection provided by the embodiment of the disclosure can realize the following technical effects:

in the fan structure for air conditioner dust collection in this embodiment, the volute provided with the wind wheel is arranged between the two side shells, and the two side shells are utilized to replace the volute to be assembled and abutted with the air conditioner indoor unit body, so that the extrusion stress acting object generated by vibration is changed into the side shell, the protection effect on the volute is further achieved, the occurrence of deformation of the volute of the fan is reduced, and the safe and stable operation of the fan is effectively ensured.

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 and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:

fig. 1 is a schematic view of a partial structure of an indoor unit of an air conditioner according to an embodiment of the present disclosure;

FIG. 2 is a schematic view of a part of a filter screen dust suction mechanism according to an embodiment of the present disclosure;

FIG. 3 is a schematic view of a partial explosion of a filter screen dust extraction mechanism provided by an embodiment of the present disclosure;

FIG. 4a is a schematic view of a cover plate in a closed open state in an embodiment of the present disclosure;

FIG. 4b is a schematic view of an embodiment of the present disclosure with a cover panel open;

FIG. 5a is a perspective view of a cover plate provided by an embodiment of the present disclosure;

FIG. 5b is a second perspective view of a cover plate provided by an embodiment of the present disclosure;

FIG. 5c is a side view of a cover plate provided by an embodiment of the present disclosure;

FIG. 6 is a schematic structural view of a spacer frame provided by an embodiment of the present disclosure;

FIG. 6a is an enlarged partial schematic view of portion A of FIG. 6;

FIG. 6b is a side view of a spacer bracket provided by an embodiment of the present disclosure;

FIG. 7 is a schematic structural view of a first frame provided by an embodiment of the present disclosure;

FIG. 8 is a schematic view of another partial structure of a filter screen cleaning mechanism provided in an embodiment of the present disclosure;

FIG. 9 is a schematic cross-sectional view of a partial structure of a filter screen cleaning mechanism provided by an embodiment of the present disclosure;

FIG. 10 is a schematic cross-sectional view of another partial structure of a filter screen cleaning mechanism provided by an embodiment of the present disclosure;

FIG. 11 is an exploded view of another partial construction of a filter screen cleaning mechanism provided in an embodiment of the present disclosure;

FIG. 12a is a perspective view of a blower housing provided by an embodiment of the present disclosure;

FIG. 12b is a second perspective view of a blower housing provided by an embodiment of the present disclosure;

FIG. 12c is an exploded view of a blower housing provided by an embodiment of the present disclosure;

FIG. 13 is a schematic structural view of an intermediate volute provided by an embodiment of the present disclosure;

FIG. 14 is a schematic view of a first side housing provided by an embodiment of the present disclosure;

FIG. 15 is a schematic view of a second side housing provided by an embodiment of the present disclosure;

fig. 16 is a schematic view of a partial structure of an air conditioner provided by an embodiment of the present disclosure;

fig. 17 is a partial structure exploded view of an air conditioner provided in an embodiment of the present disclosure.

Reference numerals:

1: a rotating shaft; 11: a shaft body; 111: a gear; 12: brushing;

2: a screen frame set; 21: partition board frame; 211: an avoidance unit; 22: a first frame; 23: a second frame; 24: a cover plate; 25: an opening; 261: a pivot shaft; 262: a shaft hole; 2621: an inclined hole portion; 2622: a rotary hole part; 271: a guide rib; 272: a guide wedge groove; 281: a clamping protrusion; 282: hanging a pore plate; 291: a limit stop; 292: reinforcing rib plates;

3: a blower; 30: a fan housing; 31: a first side case; 311: a side case main body part; 312: an induced draft shell part; 313: a dust guiding port; 314: positioning a baffle; 315: a first dust discharge part; 32: a second side case; 321: a second dust discharge part; 33: an intermediate volute; 331: a volute air inlet; 332: a volute air outlet; 34: a dust discharge port; 35: a clip; 351: ear plates; 352: a clamping block;

4: a dust collection pipeline; 41: an upper arc part; 411: a suction port; 412: reinforcing ribs; 42: a lower arc portion;

5: a scraping section;

6: a guide part; 61: a first guide groove; 62: a second guide groove;

7: a driving device; 8: a drive gear; 9: a hose;

100: an air conditioner base; 101: and a limiting clamping groove.

Detailed Description

So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. 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 still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.

The terms first, second and the like in the description and in the claims of the embodiments of the disclosure and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the present disclosure. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe embodiments of the present disclosure and embodiments thereof and are not intended to limit the indicated device, element, or component to a particular orientation or to be constructed and operated in a particular orientation. Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the embodiments of the present disclosure will be understood by those of ordinary skill in the art in view of the specific circumstances.

In addition, the terms "disposed," "connected," "secured" and "affixed" are to be construed broadly. For example, "connected" may be in a fixed connection, a removable connection, or a unitary construction; may 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. The specific meaning of the above terms in the embodiments of the present disclosure may be understood by those of ordinary skill in the art according to specific circumstances.

The term "plurality" means two or more, unless otherwise indicated.

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

The term "and/or" is an associative relationship that describes an object, meaning that there may be three relationships. For example, a and/or B, represent: a or B, or, A and B.

It should be noted that, without conflict, the embodiments of the present disclosure and features of the embodiments may be combined with each other.

As shown in fig. 1 to 3, embodiments of the present disclosure provide a filter screen dust collection mechanism and an air conditioner indoor unit.

The filter screen dust absorption mechanism provided by the embodiment of the disclosure comprises a filter screen frame group 2, a rotating shaft 1, a dust absorption pipeline 4 and a cleaning assembly. The filter screen frame group 2 is surrounded by a containing cavity, and a filter screen is arranged in the containing cavity; the rotating shaft 1 is positioned in the accommodating cavity, the rotating shaft 1 is meshed with the filter screen for transmission, and the rotating shaft 1 rotates to drive the filter screen to reciprocate on a track in the accommodating cavity; one end of the dust collection pipeline 4 is provided with a suction port 411, the suction port 411 is positioned on the windward side of the filter screen, and the other end is connected with the fan 3; the cleaning assembly comprises a scraper 5, which scraper 5 is located at the suction opening 411 for scraping off dust from the filter.

Specifically, the rotation of the rotating shaft 1 can drive the filter screen to reciprocate along the track in the accommodating cavity of the filter screen frame set 2. The track includes first track section and second track section, and first track section is for being close to air conditioner indoor set wind gap one side, and second track section is for keeping away from air conditioner indoor set wind gap one side, and pivot 1 is located first track section and second track section middle part side. When the filter screen moves from the second track section to the first track section, the air port is in a shielding state; when the filter screen moves from the first track section to the second track section, the air port is in an avoidance state, so that the reversing switching of the filter screen is realized, and the reversing air supply requirement of the air port is met.

During the movement of the filter screen, the filter screen and the scraping part 5 move relatively, and the scraping part 5 scrapes dust on the filter screen to the suction port 411 of the dust collection pipeline 4. Under the operation of the fan 3, negative pressure is formed in the dust collection pipeline 4, and dust is discharged through the dust collection pipeline 4, so that the full-automatic cleaning of the filter screen dust collection mechanism is realized.

Alternatively, the screen frame group 2 includes a partition frame 21, a first frame 22, and a second frame 23, and the respective frames of the first frame 22, the partition frame 21, and the second frame 23 are stacked from top to bottom. The baffle frame 21 is provided with an avoiding part 211, and the avoiding part 211 is used for limiting and overlapping the rotating shaft 1; the first frame 22 is fixedly connected with the partition board frame 21; the second frame 23 is fixedly connected with the first frame 22 and the partition plate frame 21, and the partition plate frame 21 is positioned in a containing cavity enclosed by the first frame 22 and the second frame 23; wherein, baffle, first frame 22 and second frame 23 cooperate together to form the track to make the filter screen limit in the track reciprocating sliding.

Specifically, the first frame 22 and the second frame 23 are grid frames, and the grid frame 21 includes integrally formed partitions and grid strips. The baffle supports the grid strip to make the interval of grid strip and first frame 22 equal to the interval of grid strip and second frame 23, grid strip and first frame 22, second frame 23 enclose jointly and close spacing space, so that the filter screen can slide on the track in spacing space, avoids the filter screen to appear laminating or the problem of blocking.

In some alternative embodiments, the accommodating cavity comprises a spindle cavity near the front side and a filter screen cavity extending from the spindle cavity to the rear side, wherein the spindle cavity is mainly used for accommodating the spindle 1, the filter screen cavity is mainly used for accommodating a main screen surface of a filter screen, and the extending forming range of the filter screen cavity can cover an air inlet area of an air conditioner indoor unit assembled with the filter screen, so that the filter screen mainly filters air inlet through the main screen surface part in the filter screen cavity. Alternatively, the suction opening 411 of the dust suction duct 4 is disposed in particular corresponding to the spindle chamber and is located below the spindle 1. In the present embodiment, "front side" and "rear side" are relative front-rear positional relationships corresponding to each other in front view of the indoor unit of the air conditioner.

In some embodiments, as shown in fig. 4a to 7, the screen frame set 2 is provided with an opening 25 at a front side thereof corresponding to the accommodating cavity, and is covered on the opening 25 by an openable cover plate 24. In the present embodiment, the opening 25 is provided corresponding to the front side of the rotation shaft chamber.

The opening 25 can be opened or closed through the opening and closing operation of the cover plate 24, and under the opening state of the opening 25, a user or a maintainer can more conveniently realize the maintenance operation of the filter screen, the rotating shaft and other parts inside the accommodating cavity, so that the dust collection device is not required to be integrally disassembled and maintained, and the maintenance difficulty of the dust collection device is effectively reduced.

Optionally, for the form of the filter screen frame set 2 shown in the foregoing embodiment, the opening 25 is formed at the front side joint edge position of the first frame 22 and the second frame 23, and is formed into a long strip-shaped slot along the longitudinal extension of the edge, the extension direction of the opening 25 is basically consistent with the longitudinal directions of the rotating shaft and the suction port, and the opening range can cover most positions of the rotating shaft and the suction port so as to be convenient for operating a plurality of positions of the rotating shaft and the suction port when maintenance is needed.

And, the cover plate 24 is constructed as an elongated plate frame structure adapted to the shape of the opening 25, the first frame 22, the partition frame 21, the second frame 23 and the cover plate 24 are enclosed together to form a receiving cavity, and the cover plate 24 can be used to close the opening 25, so that the front side of the receiving cavity is basically in a sealed state, and the problem of outwards escaping filter screen dust from the opening 25 is reduced.

Alternatively, the cover plate 24 and the filter screen frame set 2 may be assembled by one or more manners of clamping, screwing, pivoting, and the like. The cover plate 24 can open/close the opening 25 by means of a plate body turning, dismounting, etc.

In some embodiments, the cover plate 24 is pivoted to the spacer frame 21 through a pivot structure, and/or the cover plate 24 is buckled to the first frame 22 through a buckle structure; the cover plate 24 is provided to be pivotable with respect to the spacer bracket 21 to open the opening 25 after being released from the first frame 22. In this embodiment, when the opening 25 is opened, the cover 24 exposes the opening 25 in a manner of being turned down, and when the opening 25 is closed, the cover 24 seals the opening 25 in a manner of being turned up.

Alternatively, the pivot structure includes a pivot 261 and an axle hole 262, wherein one of the pivot 261 and the axle hole 262 is disposed on the cover plate 24, and the other is disposed on the spacer frame 21.

In one embodiment, the number of the pivot shafts 261 is 2, and the pivot shafts 261 are respectively disposed at two longitudinal end portions of the cover plate 24 and extend back in the longitudinal direction, and the pivot shafts 261 are configured into a bar shape with a cross section extending obliquely, as shown in the figure, the cross section of the pivot shafts 261 is in a runway shape, and four corners are subjected to arc chamfering treatment to increase smoothness during the pivoting process.

And the number of the shaft holes 262 is 2, the two shaft holes 262 are respectively formed on the side walls of the frame body of the two ends of the corresponding cover plate 24 of the partition plate frame 21, and the pivot shaft 261 is inserted into the shaft holes 262 on the corresponding side to form pivot joint. Alternatively, the shaft hole 262 has an inclined hole portion 2621 and a rotation hole portion 2622 which are communicated, the inclined hole portion 2621 is formed by extending obliquely upward from the rotation hole portion 2621 and the width of the inclined hole portion 2621 is slightly larger than the lateral width of the pivot shaft 261, the rotation hole portion 2622 is a circular hole and the inner diameter is larger than the longitudinal maximum length of the pivot shaft 261, so that the pivot shaft 261 can freely rotate in the rotation hole portion 2622 and is defined to slide only in the extending direction thereof in the inclined hole portion 2621.

The shaft hole 262 with the above configuration can be used to define a specific opening manner of the cover plate 24 and the opening 25, specifically, in a state that the cover plate 24 closes the opening 25, the pivot shaft 261 is located in the inclined hole portion 2621 of the shaft hole 262, the cover plate 24 needs to be pushed downward first, at this time, the pivot shaft 261 slides obliquely downward along a direction defined by the inclined hole portion 2621 and finally moves into the rotary hole portion 2622, and can rotate in the rotary hole portion 2622 to enable the cover plate 24 to turn downward outwards, so that the opening 25 is exposed; similarly, when the opening 25 is to be closed, the operation can be reversed according to the moving mode of the cover plate 24. By the mode, the locking and limiting functions of the cover plate 24 can be achieved, the cover plate 24 is not easy to separate from the closed position, and the tightness of the opening 25 is further improved.

In some alternative embodiments, a guiding structure is further provided between the cover plate 24 and the partition frame 21, and a limiting effect during the opening/closing process of the cover plate 24 can be achieved by using the guiding structure.

Alternatively, the guide structure includes a guide rib 271 and a guide wedge groove 272, one of the guide rib 271 and the guide wedge groove 272 being provided on the cover plate 24, and the other being provided on the spacer frame 21.

In the embodiment, the guide rib 271 is protruded at both longitudinal ends of the cover plate 24, and the guide rib 271 is constructed in a rib shape having a cross section extending in the same direction as the pivot shaft 261; guide wedge grooves 272 are formed on the frame side walls of the partition frame 21 corresponding to the two ends of the cover plate 24; wherein, when the pivot shaft 261 slides with the inclined hole portion 2621 of the shaft hole 262, the guide rib 271 is attached to the guide wedge groove 272, which can be used for stopping the cover plate 24 from further turning inwards, and can be used as another contact fulcrum of the cover plate 24 and the partition plate frame 21 to disperse externally applied force.

Optionally, the guiding wedge groove 272 has a guiding groove surface extending along the same direction as the inclined hole 2621 and a stopping groove surface located at the upper part of the guiding groove surface, wherein the guiding groove surface is jointed with the guiding rib 271 so as to limit the cover plate 24 where the guiding rib 271 is located to move only along the extending direction of the guiding groove surface; the stop groove surface is used for limiting the maximum position of the upward movement of the cover plate 24 so as to avoid excessive upward movement distance and dust leakage gap at the lower edge of the cover plate 24 when the cover plate 24 is used for closing the opening 25.

In some alternative embodiments, the snap-fit structure includes a snap-fit protrusion 281 and a hanging plate 282, the snap-fit protrusion 281 and hanging plate 282 being capable of forming a snap-fit engagement to lock the cover plate 24 with the first frame 22.

In the present embodiment, the hole-hanging plate 282 is formed at the edge of the cover plate 24 corresponding to the first frame 22, and the hole-hanging plate 282 has a clamping hole capable of forming a clamping fit with the clamping protrusion 281. The clamping convex 281 is arranged at the front side joint edge of the first frame 22 in a protruding way, the cross section of the clamping convex 281 is in an inverted triangle shape, and the clamping convex 281 is provided with an inclined surface positioned at the lower side and a transverse surface positioned at the upper side; wherein the inclined surface can play a role of smooth guiding, so that the hanging hole plate 282 is easier to slide upwards along the inclined surface; the lateral surface serves as a stop, and after the hanging hole plate 282 moves to the lateral surface along the inclined plane, the blocking protrusion 281 is embedded into the hanging hole of the hanging hole plate 282, and the lateral surface forms a stop with the inner edge of the hanging hole.

Optionally, the hanging hole plate 282 is also configured with a handle function.

In an embodiment, the upper plate edge of the hanging hole plate 282 extends obliquely upward by a certain length to form a convex plate structure for being pinched by a finger, and a user or an operator can apply an external force to the cover plate 24 by using the convex plate structure as a handle to realize the opening/closing operation of the cover plate 24 with respect to the opening 25.

In some alternative embodiments, one or more limit stops 291 are also provided protruding from the edges of the cover plate 24 corresponding to the first frame 22; the limit stopper 291 abuts against the inner side of the edge of the first frame 22 in a state where the cover plate 24 closes the opening 25 to constitute a stopper in the front-rear direction; in the drawing, the limit stop 291 is located at the inner side of the edge of the first frame 22, so that the limit stop 291 can limit the cover 24 to turn outwards in the closed state, and further improves the locking limit effect on the cover 24.

In some alternative embodiments, reinforcing ribs 292 are provided on the inner wall of the cover plate 24 facing the receiving cavity for reinforcing the deformation resistance of the cover plate 24.

Optionally, the reinforcement rib 292 includes one or more transverse reinforcement plates extending transversely of the cover 24 and disposed longitudinally of the cover 24 in spaced apart side-by-side relationship, and/or the reinforcement rib 292 further includes one or more longitudinal reinforcement plates extending transversely of the cover 24 and disposed transversely of the cover 24 in spaced apart side-by-side relationship.

Optionally, because the reinforcing rib 292 is located near the position of the rotating shaft 1 in the accommodating cavity, to avoid interference of the reinforcing rib 292 on normal rotation of the rotating shaft 1, edges of one or more reinforcing ribs 292 are configured to avoid the arc-shaped groove line shape of the rotating shaft 1, so that the rotating shaft 1 has enough rotation space.

Alternatively, as shown in fig. 8 to 11, the dust suction duct 4 includes an upper arc portion 41 and a lower arc portion 42. The upper arc part 41 is fixedly connected with the filter screen frame group, and the upper arc part 41 is provided with a suction port 411; the lower arc part 42 is detachably connected with the upper arc part 41, and the lower arc part 42 and the upper arc part 41 jointly enclose a dust collection pipe cavity.

The upper arc part 41 and the lower arc part 42 which are detachably connected are convenient for maintenance and replacement of the dust collection pipeline 4. Preferably, the upper arc portion 41 is integrally formed with the second frame 23. In this way, the problem of turbulent flow of air flow generated in the gap between the upper arc part 41 and the second frame 23 during the operation of the indoor unit of the air conditioner can be avoided, and wind noise can be reduced. Further, the upper arc portion 41 is integrally formed with the second frame 23, and dust can be prevented from accumulating in the space between the upper arc portion 41 and the second frame 23.

Alternatively, the suction opening 411 of the upper arc portion 41 is provided with a reinforcing rib 412, and the scraping portion 5 is fixed to the reinforcing rib 412. Thus, when the fan 3 is operated, the scraping part 5 positioned on the suction port 411 is in a negative pressure state, so that dust can be prevented from being raised in the indoor unit of the air conditioner after being scraped, and a better cleaning effect is obtained. In addition, the arrangement of the reinforcing ribs 412 can improve the stability of the scraping portion 5, and noise generated by vibration of the scraping portion 5 when the fan 3 operates is avoided. Wherein the scraping portion 5 comprises a scraping plate or a scraping strip.

Optionally, the filter screen dust collection mechanism further includes a guide portion 6, the guide portion 6 is sleeved in the dust collection pipe 4, the guide portion 6 is provided with a first guide groove 61, and the guide portion 6 can rotate relative to the dust collection pipe 4 to change the position of the first guide groove 61.

Specifically, the guiding part 6 is rotatably arranged in the dust collecting duct 4, and the rotation of the guiding part 6 can move the first guiding groove 61 relative to the suction opening 411. When the first guide groove 61 rotates to the suction port 411 side, dust may sequentially pass through the suction port 411 and the first guide groove 61 and finally be discharged by the blower 3. When the first guide groove 61 rotates to a position far away from the suction port 411, the suction port 411 is in a blocking state, and dust can be prevented from being sucked back into the filter screen dust collection mechanism through the fan 3 and the dust collection pipeline 4 when the filter screen dust collection mechanism does not perform self-cleaning.

Alternatively, the suction port 411 is a linear opening, and the first guide groove 61 is opened along the rotation axis 1 of the guide portion 6.

The first guide groove 61 is arc-shaped in cross section, and the communication position of the suction port 411 and the first guide groove 61 in the axial direction is constantly changed during rotation of the guide portion 6. By providing the first guide groove 61 in the form of a line of the rotation shaft 1, the conduction region of the suction port 411 can be selectively narrowed, and a negative pressure environment can be provided in a specific position at the suction port 411 in a targeted manner. On the one hand, the adsorption force at the suction port 411 is improved, and the cleaning efficiency is enhanced; on the other hand, the filter screen dust collection mechanism can clean the filter screen more pertinently, and the part with more dust accumulation can be cleaned better.

Alternatively, the guide portion 6 has a cylindrical structure, and the guide portion 6 further includes a second guide groove 62, the second guide groove 62 being located on a side away from the first guide groove 61.

During cleaning, the first guide groove 61 is located on the suction port 411 side, and the second guide groove 62 is located below the first guide groove 61. The dust at the suction port 411 passes through the first guide groove 61 and the second guide groove 62 in order, and is then discharged by the blower 3. The second guide groove 62 can play a role in drainage of the dust collection pipe cavity, so that the problem that dust is turbulent after entering the first guide groove 61 is avoided, and noise is reduced.

Alternatively, the second guide groove 62 is a square notch, and the first guide groove 61 falls vertically projected into the second guide groove 62. In this way, dust can be prevented from accumulating in the guide portion 6 during the dust falling. It can be understood that the second guide groove 62 may be a notch formed on the cylindrical guide portion 6, or may penetrate through the guide portion 6, so that the guide portion 6 is arc-shaped, and specifically, may be adaptively adjusted according to the size and layout position of the filter screen frame set and the dust collection pipe 4 in the indoor unit of the air conditioner.

Alternatively, the second guide groove 62 is parallel to the suction port 411, and the width of the second guide groove 62 is greater than or equal to the width of the suction port 411.

The rotation of the guide part 6 can move the second guide groove 62 to the suction port 411 side, so that the whole suction port 411 area can be in a negative pressure environment, and the filter screen can be completely cleaned.

Alternatively, the outer wall surface of the guide portion 6 has the same curvature as the inner wall surface of the upper arc portion 41 at the suction port 411. In the process of rotating the guide part 6, the guide part 6 is always attached to the inner wall surface at the suction port 411, so that dust is prevented from being scattered outside the dust collection pipeline 4.

Optionally, the cross-sectional width of the suction lumen is greater than the cross-sectional width of the guide 6. In this way, in the rotating process of the guide part 6, the contact area between the dust collection pipe cavity and the guide part 6 can be reduced, the abrasion degree of the guide part 6 and the dust collection pipeline 4 is reduced, and the service life of the element is prolonged.

Alternatively, the shaft 1 includes a shaft body 11 and bristles 12. The shaft body 11 is provided with one or more gears 111; bristles 12 are radially arranged along the shaft body 11, and the bristles 12 can pass through meshes of a filter screen to eject dust on the surface of the filter screen; the filter screen comprises one or more tooth-shaped parts, and the tooth-shaped parts are meshed with the gears 111 in a one-to-one correspondence.

During the movement of the filter screen, the brush hair 12 can eject dust in the mesh of the filter screen and is sucked into the dust suction pipe cavity under the negative pressure of the fan 3. Preferably, the number of the tooth-shaped parts of the filter screen is multiple, the tooth-shaped parts of the filter screen are parallel to each other, and the number of the gears 111 is multiple and meshed with the tooth-shaped parts in a one-to-one correspondence. Through many tooth-shaped portions, can make the filter screen more stable slide in filter screen frame group.

Optionally, the filter screen dust collection mechanism further comprises a driving device 7 and a driving gear 8. The main body of the driving device 7 is fixed on the filter screen frame group; the driving gear 8 is connected with the driving output end of the driving device 7, and the driving gear 8 is fixed at the end part of the shaft body 11. The driving device 7 drives the driving gear 8 to rotate, so that the rotating shaft 1 is driven to rotate circumferentially. The rotating shaft 1 is meshed with the filter screen, and the filter screen is driven to move forward or backward through the rotation of the rotating shaft 1 so as to shield the air gap or avoid the air gap.

Alternatively, the rotation center of the driving gear 8 is not concentric with the rotation center of the screen on the side of the rotation shaft 1. Thus, the number of teeth of the gear 111 engaged with the filter screen is small, and the risk of jamming caused by deformation of the filter screen can be reduced.

Alternatively, the fan 3 is of the type of a vortex fan, the direction of the outlet air of which is inclined downwards. The vortex type fan that the slope set up downwards has avoided the inside problem of collecting ash of fan better.

Optionally, as shown in fig. 12a to 15, the embodiment of the present disclosure further discloses a fan structure for air conditioner dust collection, where the fan structure includes a fan housing 30 and a wind wheel, and the wind wheel is rotatably built in the fan housing 30 to generate dust collection wind force.

In an alternative embodiment, the blower housing 30 includes a first side housing 31, a middle scroll 33, and a second side housing 32, and the first side housing 31, the middle scroll 33, and the second side housing 32 are disposed to be stacked in the blower axis direction. The first side housing 31 is covered on the side of the volute air inlet 331 of the middle volute 33, the second side housing 32 is arranged on the side away from the volute air inlet 331, and the extending range of the housing wall covers at least part of the abutting part of the fan housing 30 in the air conditioner assembling state.

In the fan structure for air conditioner dust collection in this embodiment, the volute provided with the wind wheel is arranged between the two side shells, and the two side shells are utilized to replace the volute to be assembled and abutted with the air conditioner indoor unit body, so that the extrusion stress acting object generated by vibration is changed into the side shell, the protection effect on the volute is further achieved, the occurrence of deformation of the volute of the fan is reduced, and the safe and stable operation of the fan is effectively ensured.

Optionally, the middle volute 33 is in the form of a volute, the housing is a housing space for the wind wheel, and the middle volute 33 has a volute air inlet 331 that is open along one side of the wind wheel in the axial direction and a volute air outlet 332 that is located on one side of the circumferential edge. In the present embodiment, the specific configuration of the intermediate scroll 33 may be a scroll structure as known in the related art, and the present application is not limited thereto.

Optionally, the first side case 31 includes a side case main body part 311 and an induced draft case part 312. The side casing body 311 is attached to the side wall of the middle scroll 33 on the side of the scroll air inlet 331 and can cover the side wall of the scroll, and the side casing body 311 can protect the side wall of the scroll on the side of the scroll air inlet 331; the induced draft housing part 312 is formed to be protruded with respect to the side housing main body part 311 in the fan axis direction, and is configured to have an induced draft cavity opened and closed toward the volute air inlet 331, and the edge position of the side housing main body part 311 is provided with a dust inducing port 313 communicating with the induced draft cavity, and the dust inducing port 313 is also used for connection with an outside hose so that dust is sucked into the induced draft cavity from the hose via the dust inducing port 313 and then continuously flows into the middle volute 33.

Optionally, the caliber of the opening of the induced air cavity is matched with the caliber of the volute air inlet 331, and the induced air cavity is configured into a cavity form gradually expanding from the induced dust opening 313 to the opening, so that dust can be sucked more efficiently and rapidly, and dust removing and exhausting efficiency is accelerated.

In some alternative embodiments, considering the problem that vibration generated during the operation of the fan easily causes misalignment displacement between the middle volute 33 and the first side casing 31, the side casing main body 311 is formed with a positioning baffle 314 on a casing wall facing the middle volute 33, and the positioning baffle 314 is formed by extending along the circumferential direction of the opening of the induced air cavity, and is used for forming a limit stop on the outer circumferential side of the middle volute 33, so that the opening of the volute air inlet 331 of the middle volute 33 and the induced air cavity can always maintain a good corresponding relationship, and the problem that dust leaks from the misalignment gap between the middle volute 33 and the first side casing 31 is reduced.

Optionally, the number of the positioning baffles 314 is multiple, the positioning baffles 314 are arranged on the outer peripheral side of the opening of the induced air cavity along the same circumferential line, and the radius of the circle where the circumferential line is located is slightly larger than the outer diameter of the middle volute 33, so that the middle housing is clamped in a similar embedded manner in the circumferential line formed by surrounding the positioning baffles 314 after the middle volute 33 is in stacked close fit with the first side housing 31.

In some alternative embodiments, the first side housing 31 has a first dust exhaust portion 315 and the second side housing 32 has a second dust exhaust portion 321 corresponding to the position of the volute air outlet 332 at the peripheral edge of the middle volute 33, the first dust exhaust portion 315 and the second dust exhaust portion 321 together enclose a dust exhaust port 34 formed in the form of an approximate channel, the dust exhaust port 34 is in communication with the volute air outlet 332 of the middle volute 33, and the dust exhaust port 34 is used for connecting a dust box or an external dust exhaust pipe for exhausting dust entering the fan housing 30.

Alternatively, the first dust discharging part 315 is constructed in a half-shell structure opened toward one side of the second dust discharging part 321, and similarly, the second dust discharging part 321 is constructed in a half-shell structure opened toward the first dust discharging part 315, and the open side edges of the first dust discharging part 315 and the second dust discharging part 321 are butted and buckled into a dust discharging port 34 in the form of a channel.

Optionally, the dust exhaust port 34 is gradually contracted from one end of the connecting volute air outlet 332 to the outer end, so that one end of the connecting volute air outlet 332 can be matched with the caliber of the volute air outlet 332, and the outer end is matched with the caliber of the external dust exhaust pipe, thereby realizing smooth transition of the change of the area of the passage through which dust flows.

In some alternative embodiments, the first side housing 31 and the second side housing 32 are snap fit by a snap assembly.

Optionally, the fastening assembly includes at least two sets of fastening pieces 35, and two sets of fastening pieces 35 are respectively disposed on two enclosing engagement boundaries of the dust exhaust port 34, so as to lock and limit the two engagement boundaries respectively, and ensure the connection firmness of the first dust exhaust portion 315 and the second dust exhaust portion 321.

In this embodiment, each set of fastening members 35 includes a fastening block 352 and an ear plate 351, wherein one of the fastening block 352 and the ear plate 351 is disposed at a butt edge of the first dust discharging portion 315, and the other is disposed at a butt edge of the second dust discharging portion 321 at a corresponding position. The ear plate 351 is provided with an ear hole, and the clamping block 352 is clamped into the ear hole to form clamping fit after the first dust discharging part 315 and the second dust discharging part 321 are buckled.

Embodiments of the present disclosure also provide a dust collection device for an air conditioner, where the dust collection device at least includes the filter screen dust collection structure and/or the fan structure in the foregoing embodiments.

The embodiment of the present disclosure also provides an air conditioner including an indoor unit body and the dust suction device of the previous embodiment, as shown in fig. 16 and 17. Optionally, the dust collection device is arranged inside the indoor unit body.

The indoor unit body is provided with an air inlet, and the filter screen frame group 2 of the dust collection device is arranged at the air inlet of the indoor unit body, so that the filter screen can filter flowing air. The fan structure of the dust collection device is arranged at one side end position of the indoor unit body, and the fan 3 is connected with the dust collection pipeline 4 through a hose 9.

In the moving process of the filter screen in the indoor unit of the air conditioner, the brush hair 12 ejects dust in the meshes of the filter screen, the dust is scraped through the scraping part 5, the dust falls into a dust collection pipe cavity from the suction port 411 under the negative pressure environment formed by the fan 3, and then is discharged outdoors from the indoor unit of the air conditioner through the hose 9 and the fan 3, so that the full-automatic filter screen is cleaned, the problem that a user regularly changes a dust collection box is solved, and meanwhile, the problem that the dust accumulates and breeds bacteria can be avoided by timely discharging the dust.

Optionally, the number of the filter screen dust collection mechanisms is two, and the two sets of filter screen dust collection mechanisms share the same hose 9 to be connected with the fan 3. Thus, the air conditioner indoor unit can be better adapted to a large-sized air conditioner indoor unit.

In an embodiment, the air conditioner has an air conditioner base 100, a longitudinal one-side end of the air conditioner base 100 is provided with a fan structure of the dust suction device, and a second side case 32 of the fan structure is located at a side close to the air conditioner base 100. Thus, when the fan structure is assembled on the air conditioner base 100, the second side housing 32 abuts against the air conditioner base 100, and direct abutting of the middle volute 33 and the air conditioner base 100 is avoided, so that the middle volute 33 is protected by the second side housing 32.

Optionally, the air conditioner base 100 and the fan structure are fixed by screwing and/or clamping.

Specifically, the air conditioner base 100 has an integrally formed back base portion and a lower base portion, wherein screw holes are provided in the back base portion, and matched screw holes are provided in corresponding positions of the fan structure, so that the fan structure and the back base portion are screwed through the first screw structure. And screw holes are formed in the lower base, matched screw holes are formed in the corresponding positions of the fan structure, and therefore the fan structure and the lower base are in threaded connection through the second screw structure. The first screw structure and the second screw structure are used for fixing the back side and the lower side of the fan structure respectively, so that the stability of connection between the fan structure and the air conditioner base 100 can be effectively enhanced.

In still other alternative embodiments, the air conditioner base 100 is further formed with one or more limiting clamping grooves 101, and part of the edge of the fan casing 30 is clamped in the limiting clamping grooves 101 and is clamped and limited in the stacking direction of the first side casing 31 and the second side casing 32, so that the displacement of the fan casing 30 in the longitudinal direction of the air conditioner base 100 can be effectively limited, and the vibration influence of the fan operation is reduced.

The indoor unit of the air conditioner comprises an air pipe type indoor unit of the air conditioner and an indoor unit of a wall-mounted air conditioner. The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may include structural and other modifications. The embodiments represent only 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 shown in the drawings, and various modifications and changes may 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 fan structure for air conditioning and dust collection, comprising:

the fan housing (30) comprises a first side housing (31), a middle volute (33) and a second side housing (32) which are stacked and arranged along the axial direction of the fan, wherein the first side housing (31) is covered on the side of a volute air inlet (331) of the middle volute (33), the second side housing (32) is arranged on the side of the side away from the volute air inlet (331), and the extending range of the housing wall of the second side housing covers at least part of the abutting part of the fan housing (30) in the air conditioner assembling state;

the wind wheel is rotatably arranged in the middle volute (33) so as to generate dust collection wind power.

2. The fan structure according to claim 1, characterized in that the first side housing (31) comprises:

a side casing main body part (311) which is attached to the side wall of the middle scroll (33) on the side of the scroll air inlet (331);

an induced draft housing part (312) which is formed to be convex with respect to the side housing main body part (311) in the fan axis direction and is configured to have an induced draft cavity which is open and closed toward the volute air inlet (331);

wherein the edge of the side shell main body part (311) is provided with a dust guiding opening (313) communicated with the air guiding cavity.

3. The fan structure according to claim 2, characterized in that a positioning baffle (314) is formed on a casing wall of the side casing main body portion (311) facing the middle volute (33), the positioning baffle (314) being formed to extend circumferentially along the opening of the induced draft cavity, and being used for forming a limit stop for an outer peripheral side of the middle volute (33).

4. The fan structure according to claim 1 or 2, wherein the first side housing (31) has a first dust discharging portion (315), the second side housing (32) has a second dust discharging portion (321), the first dust discharging portion (315) and the second dust discharging portion (321) are jointly enclosed to form a dust discharging port (34), and the dust discharging port (34) is communicated with a volute air outlet (332) of the middle volute (33).

5. The fan structure according to claim 4, wherein the first side housing (31) and the second side housing (32) form a snap fit by a snap assembly, the snap assembly comprises at least two sets of snap members (35), and the two sets of snap members (35) are respectively arranged on two surrounding engagement boundaries of the dust exhaust port (34).

6. A suction device for an air conditioner, comprising a blower structure according to any one of claims 1 to 5.

7. An air conditioner, comprising:

an air conditioner base (100);

the dust extraction of claim 6, the fan structure of the dust extraction being disposed at one longitudinal side end of the air conditioning base (100), and the second side housing (32) being located at a side close to the air conditioning base (100).

8. An air conditioner according to claim 7, wherein the air conditioner base (100) and the fan structure are fixed by screwing and/or clamping.

9. The air conditioner according to claim 8, wherein the air conditioner base (100) has a back base portion and a lower base portion integrally formed, the blower structure being screwed with the back base portion by a first screw structure and with the lower base portion by a second screw structure.

10. An air conditioner according to any one of claims 7 to 9, wherein the air conditioner base (100) is further formed with one or more limiting clip grooves (101), and a part of edges of the fan housing (30) are clamped in the limiting clip grooves (101) and clamped and limited in the stacking direction of the first side housing (31) and the second side housing (32).

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