CN216814375U - Indoor unit of air conditioner - Google Patents

Abstract

The application relates to the technical field of air conditioners and discloses an air conditioner indoor unit. The application provides an air conditioning indoor unit includes connecting plate, sealed baffle, driving gear, driven gear and first drive arrangement. The connecting plate is fixed in the shell; a volute is fixedly arranged on the sealing partition plate; the driving gear is arranged on the driving output end of the first driving device; the driven gear is meshed with the driving gear and penetrates through the connecting plate to be fixedly connected with the sealing partition plate; wherein, driven gear is sector gear, and sector angle theta's scope of sector gear is: theta is more than or equal to 55 degrees and less than or equal to 75 degrees, the first driving device is used for driving the driving gear to rotate, and then the sector gear and the sealing partition plate are driven to rotate relative to the connecting plate, so that the air conditioner indoor unit can switch air outlet at the vertical side air inlet and the vertical lower air inlet. The volute rotation form is small-angle rotation, extra avoidance space does not need to be occupied, and the problem that the space occupancy of the indoor air conditioner capable of supplying air in a reversible mode is overlarge is solved.

Description

Indoor unit of air conditioner

Technical Field

The application relates to the technical field of air conditioners, for example to 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 the prior art, in order to switch the airflow direction of an air conditioner indoor unit. Disclosed are an air conditioner indoor unit and an air conditioner. The indoor unit of the air conditioner comprises a shell and a rotary air duct assembly. The shell is provided with a first air port and a second air port; the rotary air duct assembly is arranged in the shell and can rotate relative to the shell so that the indoor air conditioner can be switched between a first air outlet mode and a second air outlet mode. The housing includes a stationary housing portion and a movable housing portion that is movable in a direction away from the stationary housing portion and has a travel that allows the rotary air duct assembly to freely rotate within the housing. The rotary air duct assembly comprises a centrifugal air duct wheel assembly or an axial flow air duct wheel assembly. When the mode of the indoor unit of the air conditioner is switched, the centrifugal air wheel component needs to rotate 80-100 degrees relative to the shell, and the axial flow air wheel component needs to rotate 170-190 degrees relative to the shell.

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:

the rotary air duct assembly inside the shell of the existing air-conditioning indoor unit capable of switching air outlet occupies a large space, so that the space occupancy of the air-conditioning indoor unit is large. For the ducted air conditioner, the building with shorter floors cannot provide a larger ceiling space required for installation, so that the user space of the short floors is further reduced.

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 an indoor unit of an air conditioner, wherein a driving gear rotates to drive a driven gear to rotate, so that the driven gear drives a volute on a sealing partition plate to rotate relative to a connecting plate; wherein, the range of the fan-shaped angle theta of the fan-shaped gear is as follows: theta is more than or equal to 55 degrees and less than or equal to 75 degrees, and the sector gear rotates to enable the air conditioner indoor unit to switch air outlet at the vertical side air inlet and the vertical lower air inlet. The volute rotation form is small-angle rotation, extra avoidance space does not need to be occupied, and the problem that the space occupancy of the indoor unit of the reversible air supply air conditioner is overlarge is solved.

In some embodiments, the air conditioning indoor unit includes a connection plate, a sealing partition, a driving gear, a driven gear, and a first driving device. The connecting plate is fixed in the shell; a volute is fixedly arranged on the sealing partition plate; the first driving device body is fixed in the shell, and the driving gear is arranged on the driving output end of the first driving device; the driven gear is meshed with the driving gear and penetrates through the connecting plate to be fixedly connected with the sealing partition plate; wherein, driven gear is sector gear, and sector angle theta's of sector gear scope is: theta is more than or equal to 55 degrees and less than or equal to 75 degrees, the first driving device is used for driving the driving gear to rotate, and then the sector gear and the sealing partition plate are driven to rotate relative to the connecting plate, so that the air conditioner indoor unit can switch air outlet at the vertical side air inlet and the vertical lower air inlet. The volute rotation form is small-angle rotation, extra avoidance space does not need to be occupied, and the problem that the space occupancy of the indoor air conditioner capable of supplying air in a reversible mode is overlarge is solved.

In some optional embodiments, the air conditioning indoor unit further comprises a baffle and a second driving device. The baffle comprises a pivot shaft, and the baffle is pivotally connected with the sealing partition plate through the pivot shaft; the main body of the second driving device is fixed on the sealing partition plate, the second driving device is used for driving the pivot shaft to rotate axially so as to drive the baffle to rotate, and the baffle is used for isolating air inlet flow and air outlet flow of the volute.

In some optional embodiments, the connecting plate is provided with an avoiding guide rail, the avoiding guide rail is an arc-shaped groove, the sealing partition plate drives the second driving device to rotate, and the avoiding guide rail provides a track for the rotation of the second driving device.

In some alternative embodiments, the sector gear includes a gear body, gear teeth, a cam, and a connecting post. The gear body is fan-shaped, gear teeth are positioned at the head of the gear body and are meshed with the driving gear; the cam is positioned at the tail part of the gear body; the connecting column is fixedly connected with the sealing partition plate; wherein, the connecting column is concentric with the reference circle of the gear teeth.

In some optional embodiments, the cam includes a first arc surface, the arc-shaped groove includes a second arc surface, the first arc surface and the second arc surface are arranged in parallel, and the circle center corresponding to the first arc surface and the circle center corresponding to the second arc surface are both located on the connecting column, so that the second driving device and the driven gear rotate synchronously.

In some optional embodiments, the air-conditioning indoor unit further comprises a rolling bearing, wherein a bearing outer ring of the rolling bearing is embedded in the connecting plate, and a bearing inner ring of the rolling bearing is fixedly sleeved on the connecting column so as to enable the sealing partition plate to be rotatably connected with the connecting plate.

In some optional embodiments, the air-conditioning indoor unit further comprises a rotating shaft and a wind wheel. The rotating shaft is rotatably arranged in the shell; the wind wheel is positioned in the accommodating cavity of the volute; the spiral case quantity is a plurality of, and the wind wheel in a plurality of spiral cases is all fixed to wear to locate the pivot, and the pivot can drive a plurality of wind wheels and rotate.

In some optional embodiments, the air conditioning indoor unit further comprises a fixing seat and a third driving device. The fixed seat is fixed on the upper wall surface of the shell, and the rotating shaft penetrates through the fixed seat; the third driving device is located on the fixed seat and used for driving the rotating shaft to rotate axially.

In some alternative embodiments, the rotation axis of the sealing partition plate is positioned on the rotating shaft, so that the wind wheel and the volute rotate axially along the same axis.

In some alternative embodiments, the ratio x of the diameter of the rotor to the height of the volute is in the range of 0.6 ≦ x ≦ 0.9.

The air-conditioning indoor unit provided by the embodiment of the disclosure can realize the following technical effects:

the indoor unit of the air conditioner comprises a connecting plate, a sealing partition plate, a driving gear, a driven gear and a first driving device. The connecting plate is fixed in the shell; a volute is fixedly arranged on the sealing partition plate; the first driving device body is fixed in the shell, and the driving gear is arranged on the driving output end of the first driving device; the driven gear is meshed with the driving gear and penetrates through the connecting plate to be fixedly connected with the sealing partition plate; wherein, driven gear is sector gear, and sector angle theta's of sector gear scope is: theta is more than or equal to 55 degrees and less than or equal to 75 degrees, the first driving device is used for driving the driving gear to rotate, and then the sector gear and the sealing partition plate are driven to rotate relative to the connecting plate, so that the air conditioner indoor unit can switch air outlet at the vertical side air inlet and the vertical lower air inlet. The volute rotation form is small-angle rotation, extra avoidance space does not need to be occupied, and the problem that the space occupancy of the indoor air conditioner capable of supplying air in a reversible mode is overlarge is solved.

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 cross-sectional structure view of an air conditioning indoor unit provided in an embodiment of the present disclosure;

fig. 2 is a schematic partial structure diagram of an air conditioner indoor unit provided in the embodiment of the present disclosure;

fig. 3 is another partial schematic structural diagram of an air conditioning indoor unit according to an embodiment of the present disclosure;

fig. 4 is a schematic partial structure view of another air conditioning indoor unit provided in the embodiment of the present disclosure;

FIG. 5 is a schematic view of a partial structure of a connection plate and a sealing diaphragm provided by an embodiment of the present disclosure;

fig. 6 is another partial schematic structural view of another air conditioning indoor unit provided in the embodiment of the present disclosure;

fig. 7 is a partial structural schematic diagram of a housing and a centrifugal fan provided in the embodiment of the present disclosure.

Reference numerals:

1: a housing; 101: a side tuyere; 102: a lower tuyere; 2: sealing the partition plate; 21: avoiding the notch; 22: a first separator; 23: a second separator; 3: a volute; 31: a volute air outlet; 41: a first driving device; 42: a driving gear; 43: a driven gear; 431: a first arc surface; 5: a rotating shaft; 6: a wind wheel; 7: a baffle plate; 71: a pivotal shaft; 8: a third driving device; 9: a heat exchanger; 10: a fixed seat; 11: a fixed mount; 12: a second driving device; 13: a connecting plate; 131: avoiding the guide rail; 132: a second cambered surface.

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 claims of the embodiments of the disclosure and in the drawings described above 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 embodiments of the present disclosure 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.

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 type air conditioner indoor unit as an example.

The traditional single-air-outlet air pipe type air conditioner indoor unit comprises a side air inlet and a lower air inlet, wherein air is usually supplied through the lower air inlet, air is discharged through the side air inlet, an air channel in a shell of the air pipe type air conditioner indoor unit is composed of a fan and an air channel assembly, the air channel assembly is fixed in the shell to form a fixed air channel, and air flow is supplied through the lower air inlet, passes through the fan and a heat exchanger and then is discharged through the side air inlet. The traditional single-air-outlet air pipe type air conditioner indoor unit cannot meet the requirement of a user on the heating process. Although the existing part of air duct type air-conditioning indoor units can supply air through the side air inlet and discharge air through the lower air inlet, when the mode of the air-conditioning indoor unit is switched, the air wheel component needs to rotate relative to the shell within the rotation range of 80-100 degrees or 170-190 degrees, so that the air-conditioning indoor unit capable of supplying air in a reversible manner occupies a large space and cannot be installed on a ceiling of a low floor.

Referring to fig. 1 to 7, an embodiment of the present disclosure provides an indoor unit of an air conditioner.

The air-conditioning indoor unit provided by the embodiment of the disclosure comprises a connecting plate 13, a sealing partition plate 2, a driving gear 42, a driven gear 43 and a first driving device 41. The connecting plate 13 is fixed in the shell 1; a volute 3 is fixedly arranged on the sealing partition plate 2; the first driving device 41 is fixed in the housing 1, and the driving gear 42 is arranged on the driving output end of the first driving device 41; the driven gear 43 is meshed with the driving gear 42, and the driven gear 43 penetrates through the connecting plate 13 and is fixedly connected with the sealing partition plate 2; the driven gear 43 is a sector gear, and the range of the sector angle θ of the sector gear is: theta is larger than or equal to 55 degrees and smaller than or equal to 75 degrees, the first driving device 41 is used for driving the driving gear 42 to rotate, and then the sector gear and the sealing partition plate 2 are driven to rotate relative to the connecting plate 13, so that the air outlet of the indoor unit of the air conditioner is switched between the vertical side air inlet 101 and the vertical lower air inlet 102.

Specifically, a connecting plate 13 is fixedly installed on one side in a shell 1 of the indoor unit of the air conditioner, and a bearing penetrates through the connecting plate 13. The sealing partition plate 2 is fixedly connected with the driven gear 43 through a bearing, and the sealing partition plate 2 and the driven gear 43 are respectively positioned on two sides of the connecting plate 13. The sealing partition plate 2 rotates to drive the volute 3 to rotate, so that the indoor unit of the air conditioner is switched between a first air outlet mode and a second air outlet mode; wherein, the air conditioning indoor unit is in first air-out mode, and the scope of the contained angle alpha of spiral case air outlet 31 place plane and first bottom plate is: alpha is more than or equal to 10 degrees and less than or equal to 20 degrees, wind enters from a side wind inlet 101 and exits from a lower wind inlet 102; the indoor unit of the air conditioner is in the second air outlet mode, and the range of the included angle β between the plane where the volute air outlet 31 is located and the first bottom plate 104 is as follows: beta is more than or equal to 75 degrees and less than or equal to 85 degrees, wind enters from a lower wind inlet 102 and exits from a side wind inlet 101. Wherein, the range of the fan-shaped angle theta of the fan-shaped gear is as follows: theta is more than or equal to 55 degrees and less than or equal to 75 degrees, the volute 3 only needs to rotate at a small angle, air outlet can be switched between two vertical air ports, a avoidance space for rotation of the volute 3 does not need to be reserved, and air outlet switching air outlet is carried out on the air conditioner indoor unit in a space with the thickness of 200mm of the whole machine. The air-conditioning indoor unit has small space occupancy rate, and further solves the problem that the air-conditioning indoor unit with reversing air outlet cannot be installed due to too small ceiling space. Preferably, the fan-shaped angle theta of the fan-shaped gear is 65 degrees, so that the air pipe type air conditioner indoor unit can have better air outlet performance in a space with the thickness of the whole machine of 200 mm.

It will be appreciated that rotation of the gear segment will cause the sealing diaphragm 2 and volute 3 to rotate. The volute 3 rotates to enable the air pipe type air conditioner indoor unit to be switched between a first air outlet mode and a second air outlet mode. The air pipe type air conditioner indoor unit is in a first air outlet mode, air is fed from the side air inlet 101 and is exhausted from the lower air inlet 102; and when the air pipe type air conditioner indoor unit is in the second air outlet mode, air is fed from the lower air inlet 102 and is discharged from the side air inlet 101. When the air pipe type air conditioner indoor unit operates in a heating working condition, the air pipe type air conditioner indoor unit is in a first air outlet mode. The air outlet direction of the air pipe type air conditioner indoor unit is downward air outlet, hot air is light and easy to float at the top of a room, and hot air can be conveyed to a human body region through the air outlet mode of the downward air outlet, so that the comfort of a space in the region where a user is located is better. And when the air pipe type air conditioner indoor unit operates in a refrigerating working condition, the air pipe type air conditioner indoor unit is in a second air outlet mode. The air outlet direction of the air pipe type air conditioner indoor unit is lateral air outlet, cold air descends from top to bottom during refrigeration, and refrigeration air supply is more uniform.

Optionally, the air conditioning indoor unit further comprises a baffle 7 and a second driving device 12. The baffle 7 comprises a pivot shaft 71, and the baffle 7 is pivotally connected with the sealing partition plate 2 through the pivot shaft 71; the main body of the second driving device 12 is fixed on the sealing partition plate 2, the second driving device 12 is used for driving the pivot shaft 71 to axially rotate so as to drive the baffle 7 to rotate, and the baffle 7 is used for matching with the sealing partition plate 2 to isolate the air inlet flow and the air outlet flow of the volute 3. Specifically, the sealing partition plate 2 separates the volute air outlet 31 from the air inlets on two sides of the volute 3, and the lower part of the sealing partition plate 2 can be pivotally connected with the baffle 7 through a pivot shaft 71. The sealing partition plate 2 can drive the volute 3 to rotate, so that the air outlet direction of the volute air outlet 31 is switched to the side air port 101 from the lower air port 102, then the air channel forms a complete air channel curve through the rotating angle of the adjusting baffle 7, and further the air inlet air channel and the air outlet air channel are separated, the problems of turbulence and turbulence caused by mutual interference due to gaps in the air inlet air channel and the air outlet air channel are avoided, the noise in the air conditioner indoor unit is favorably reduced, and the air supply performance of the air conditioner indoor unit is improved.

Optionally, the baffle 7 is an arc-shaped plate, and the radian of the arc-shaped angle air duct of the baffle 7 is matched. The rotatable baffle 7 can enable the indoor unit of the air conditioner to form a complete air duct curve in the first air outlet mode and the second air outlet mode, so that the air inlet airflow and the air outlet airflow of the volute 3 are prevented from being influenced by each other, an air supply duct is optimized, and air supply performance is improved.

Optionally, the connecting plate 13 is provided with an avoidance guide rail 131, the avoidance guide rail 131 is an arc-shaped groove, the sealing partition plate 2 drives the second driving device 12 to rotate, and the avoidance guide rail 131 provides a track for the rotation of the second driving device 12. Meanwhile, the avoidance guide rail 131 can play a role in limiting the second driving device 12 in switching the first air outlet mode and the second air outlet mode. The arc angle of the escape guide 131 ranges from 55 ° to 75 °. Through the arrangement of the arc-shaped notch, a larger air duct space can be obtained in a space with the thickness of the whole machine of the air-conditioning indoor unit of 200 mm.

Optionally, the sector gear includes a gear body, gear teeth, a cam, and a connecting post. The gear body is in a fan shape, gear teeth are positioned at the head of the gear body and are meshed with the driving gear 42; the cam is positioned at the tail part of the gear body; the connecting column is fixedly connected with the sealing partition plate 2; wherein, the connecting column is concentric with the reference circle of the gear teeth.

Specifically, two ends of the gear teeth are respectively a first end and a second end, the driving gear 42 is meshed with the first end, and the indoor unit of the air conditioner operates in a first air outlet mode; the driving gear 42 is meshed with the second end portion, and the indoor unit of the air conditioner runs in a second air outlet mode. Compare in the indoor set of air conditioning of traditional reversible air supply, this application need not additionally to set up the component, like micro-control switch, alright in order to carry out the switching of different air-out modes, has saved the cost of component and the inner space of indoor set of air conditioning. The provision of the cam enables the connection plate 13 to gain more space for mounting or avoiding other elements. The spliced pole sets up on the reference circle center of the teeth of a cogwheel, can make sealed baffle 2 and spiral case 3 carry out axial rotation around the straight line of centre of a circle place.

Optionally, the cam includes a first arc surface 431, the arc-shaped groove includes a second arc surface 132, the first arc surface 431 and the second arc surface 132 are arranged in parallel, and a circle center corresponding to the first arc surface 431 and a circle center corresponding to the second arc surface 132 are both located on the connecting column, so that the second driving device and the driven gear rotate synchronously. The thickness of the whole machine of the air-conditioning indoor unit is within 200mm, so the inner space of the shell 1 is limited. Can enough provide the track for second drive arrangement 12 through set up the arc wall on connecting plate 13, can play spacing effect to sealed baffle 2 under two kinds of air-out modes moreover. In addition, the arc-shaped groove and the cam on the sector gear body share the circle center of the position of the connecting column, so that the space on the connecting plate 13 can be saved. Therefore, the element installation space of the non-air duct area can be utilized to the maximum extent, and the air duct space is further improved to optimize the air supply performance.

Optionally, the indoor unit of the air conditioner further comprises a rolling bearing, wherein a bearing outer ring of the rolling bearing is embedded in the connecting plate 13, and a bearing inner ring of the rolling bearing is fixedly sleeved on the connecting column, so that the sealing partition plate 2 is rotatably connected with the connecting plate 13. Thus, friction generated when the seal partition plate 2 rotates relative to the connecting plate 13 can be avoided, and unnecessary damage to the components can be avoided.

Optionally, the indoor unit of the air conditioner further comprises a rotating shaft 5 and a wind wheel 6. The rotating shaft 5 is rotatably arranged on the shell 1; the wind wheel 6 is positioned in the accommodating cavity of the volute 3; the number of spiral case 3 is a plurality of, and the wind wheel 6 in a plurality of spiral cases 3 all fixes wearing to locate pivot 5, and pivot 5 can drive a plurality of wind wheels 6 and rotate. The sealing separator 2 includes a first separator 22 and two second separators 23. The first partition plate 22 is vertically and fixedly connected with the second partition plate 23. A plurality of dodge the mouth, the air outlet one-to-one joint of a plurality of volutes 3 is fixed on dodging the mouth, through 5 fixed connection of pivot between a plurality of wind wheels 6 has evenly been seted up to first baffle 22. Rotate through sealed baffle 2 and drive a plurality of volutes 33 and rotate, 5 axial rotations of pivot drive a plurality of wind wheels 6 rotatory, need not additionally to provide and dodge the space.

Optionally, the indoor unit of an air conditioner further includes a fixing base 10 and a third driving device 8. The fixed seat 10 is fixed on the upper wall surface of the shell 1; the third driving device 8 is located on the fixing seat 10, wherein the rotating shaft 5 penetrates through the fixing seat 10, and the third driving device 8 is used for driving the rotating shaft 5 to rotate axially. The fixing seat 1010 is fixed on the upper wall surface of the housing 11 and located between two adjacent volutes 33. The second driving device 1212 is coupled to the plurality of wind wheels 66, so as to drive the wind wheels 66 to rotate integrally. Preferably, the coupler is a rubber coupler, and the rubber coupler has certain elasticity and plays a role in buffering.

Optionally, the rotation axis of the sealing partition 2 is located on the rotation shaft 5, so that the wind wheel 6 and the volute 3 axially rotate along the same axis. Therefore, the volute 3 and the wind wheel 6 move independently, and the problem of collision and friction between the volute 33 and the wind wheel 66 in the operation process of the air duct type air conditioner indoor unit can be avoided, so that the wind wheel 6 and the volute 3 move more stably.

Optionally, the range of the ratio x of the diameter of the wind wheel 6 to the height of the volute 3 is 0.6-0.9. The diameter d of the wind wheel 6 is more than or equal to 120mm and less than or equal to 160 mm. For the air duct type air conditioner indoor unit with the thickness of the whole machine within 200mm, the volute 3 can be ensured to rotate in the space with the thickness of the whole machine within 200mm, and meanwhile, the air supply performance is ensured.

Optionally, the volute 3 comprises an upper volute portion 3 and a lower volute portion, the upper volute portion 3 comprises a volute outlet 31, and the upper volute portion 3 is integrally formed. A plurality of 3 portions of the upper volute are fixedly clamped on a plurality of avoidance notches 21 of the sealing partition plate 2, and the lower volute portion is connected with the 3 portions of the upper volute in a one-to-one correspondence manner. The lower volute part and the upper volute part 3 can be connected in a bayonet buckle manner, and can also be connected in other detachable connection manners, which are not limited herein. In order to enhance the strength of the upper volute 3 part, an L-shaped fixing plate can be additionally arranged, and two side edges of the L-shaped fixing plate are respectively fixed on the air outlet position of the first volute 3 part and the sealing partition plate 2.

Optionally, the indoor unit of the air conditioner further comprises a heat exchanger 9 and a water pan. The heat exchanger 9 is obliquely arranged in the shell 1; the water pan is positioned below the heat exchanger 9; when the air conditioner indoor unit is exhausted from the side air opening 101, the baffle 7 is in seamless fit with the outer surface of the water pan.

Specifically, the heat exchanger 9 includes a base plate and a plurality of fins. The plurality of fins are perpendicular to the side wind port 101. In the first air outlet mode, the volute 3 is obliquely discharged from the lower air inlet 102 downwards; under the second air-out mode, because 3 rotation angles of spiral case are the acute angle, and then lead to the air-out direction of spiral case air outlet 31 department to be the side air-out downwards, easily make cold wind blow directly the user, experience feels relatively poor. The fins of the heat exchanger 9 are obliquely arranged on the surface of the base plate of the heat exchanger 9, so that the fins are perpendicular to the first side plate, cold air can be horizontally discharged from the side air inlet 101, the distance from the air flow at the side air inlet 101 to a human body is increased, and the condition that the discharged air of the air pipe type air conditioner indoor unit directly faces to the body of a user is avoided.

When the air pipe type air conditioner indoor unit operates in a heating working condition, the air outlet direction is downward air outlet, hot air is light and easy to float at the top of a room, and hot air can be sent to a human body region through the air outlet mode of the downward air outlet, so that the comfort of the space of the region where a user is located is better. When the air pipe type air conditioner indoor unit operates in a refrigeration working condition, the air outlet direction is lateral air outlet, cold air descends from top to bottom during refrigeration, and refrigeration air supply is more uniform. In the first air outlet mode, the baffle 7 can abut against the outer edge of the water collector through rotation, so that the air outlet flow and the air inlet flow of the volute 3 are completely separated. Therefore, the problem of air turbulence is avoided, and the air supply performance of the indoor unit of the air conditioner is improved.

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 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. The utility model provides an indoor unit of air conditioner, has seted up side wind gap and leeward mouth on its casing, its characterized in that includes:

the connecting plate is fixed in the shell;

the sealing partition plate is fixedly provided with a volute;

the first driving device is fixed in the shell and comprises a driving output end;

a drive gear disposed on the drive output; and the combination of (a) and (b),

the driven gear is meshed with the driving gear, penetrates through the connecting plate and is fixedly connected with the sealing partition plate;

wherein, driven gear is sector gear, sector angle theta's scope of sector gear is: theta is more than or equal to 55 degrees and less than or equal to 75 degrees, the first driving device is used for driving the driving gear to rotate, and further driving the sector gear and the sealing partition plate to rotate relative to the connecting plate, so that the air outlet of the indoor unit of the air conditioner is switched between a side air inlet and a lower air inlet which are perpendicular to each other.

2. An indoor unit of an air conditioner according to claim 1, further comprising:

the baffle comprises a pivot shaft, and the baffle is pivotally connected with the sealing partition plate through the pivot shaft; and the combination of (a) and (b),

the second driving device is fixed on the sealing partition plate and used for driving the pivot shaft to axially rotate so as to drive the baffle to rotate, and the baffle is used for isolating the air inlet flow and the air outlet flow of the volute.

3. An indoor unit of an air conditioner according to claim 2,

the connecting plate is provided with an avoiding guide rail which is an arc-shaped groove, the sealing partition plate drives the second driving device to rotate, and the avoiding guide rail provides a track for the rotation of the second driving device.

4. An indoor unit of an air conditioner according to claim 3, comprising:

the gear body is fan-shaped;

the gear teeth are positioned at the head of the gear body and are meshed with the driving gear;

the cam is positioned at the tail part of the gear body; and the combination of (a) and (b),

the connecting column is fixedly connected with the sealing partition plate;

the connecting column is concentric with the reference circle of the gear teeth.

5. An indoor unit of an air conditioner according to claim 4,

the cam comprises a first cambered surface, the arc-shaped groove comprises a second cambered surface, the first cambered surface and the second cambered surface are arranged in parallel, the circle center corresponding to the first cambered surface and the circle center corresponding to the second cambered surface are both located on the connecting column, and therefore the second driving device and the driven gear rotate synchronously.

6. An indoor unit of an air conditioner according to claim 4, further comprising:

and the outer ring of the bearing of the rolling bearing is embedded on the connecting plate, and the inner ring of the bearing is fixedly sleeved on the connecting column so as to ensure that the sealing partition plate is rotationally connected with the connecting plate.

7. An indoor unit of an air conditioner according to claim 1, further comprising:

the rotating shaft is rotatably arranged on the shell; and the combination of (a) and (b),

the wind wheel is positioned in the accommodating cavity of the volute;

the quantity of spiral case is a plurality of, and the wind wheel in a plurality of spiral cases all fixedly wears to locate the pivot, the pivot can drive a plurality of wind wheels and rotate.

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

the fixed seat is fixed on the upper wall surface of the shell, and the rotating shaft penetrates through the fixed seat; and the combination of (a) and (b),

and the third driving device is positioned on the fixed seat and is used for driving the rotating shaft to axially rotate.

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

the rotating axis of the sealing partition plate is positioned on the rotating shaft, so that the wind wheel and the volute axially rotate along the same axis.

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

the range of the ratio x of the diameter of the wind wheel to the height of the volute is more than or equal to 0.6 and less than or equal to 0.9.

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