CN216716370U - Indoor unit of air conditioner - Google Patents

Abstract

The application relates to efflux air supply technical field discloses machine in air conditioning, includes: a housing. An air outlet channel penetrating through the shell is arranged in the shell, one end of the air outlet channel is an air outlet and is positioned on the front end face of the shell, and the other end of the air outlet channel is a drainage port and is positioned on the rear end face of the shell; be equipped with first air intake and second air intake on the inside wall of air-out passageway, and along the air-out direction of air-out passageway, the second air intake is located the front side of first air intake, all is equipped with water conservancy diversion spare in first air intake and the second air intake. In this application, can form comfortable air-out air current, because the second air intake is located the front side of first air intake, consequently the air current that first air intake flows can form the effect of pushing forward to the air current that the second air intake flows, and the air pressure in the reinforcing air-out passageway improves the air supply distance, but also can form stronger negative pressure region at air-out passageway rear, improves the drainage effect, and then improves the air supply travelling comfort.

Description

Indoor unit of air conditioner

Technical Field

The application relates to the technical field of jet air supply, in particular to an indoor unit of an air conditioner.

Background

At present, most of the existing air conditioners adopt an air guide plate air supply mode, cold and hot air can be directly blown to a human body in a refrigerating or heating state, the body feeling comfort of the human body is poor, and the phenomenon of unbalanced indoor temperature can be caused due to the fact that the air supply distance is short in the air guide plate air supply mode.

There is the air-out passageway through setting up the link up among the correlation technique on air conditioner indoor unit, the one end of air-out passageway is used for the air-out, the other end is used for the drainage, in-process at the air-out end air-out of air-out passageway, produce the negative pressure in inside, thereby introduce indoor air and the cold and hot air current that the air-out end blew off at the drainage end and mix, make the air-out more comfortable, but utilize the negative pressure that the air-out air current produced in the air-out passageway to be less among the correlation technique, the drainage effect is not obvious, the air supply distance is shorter, the air output that wants to improve drainage efficiency and air supply distance and need increase the air conditioner improves the velocity of flow of negative pressure and air-out air current in the air-out passageway.

Therefore, how to increase the air supply distance of the outlet airflow and improve the drainage effect to form a comfortable outlet airflow becomes a problem to be solved urgently by those skilled in the art.

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, which aims to improve the air supply distance of air outlet airflow, improve the drainage effect and form comfortable air outlet airflow.

In some embodiments, an air conditioning indoor unit includes: a housing. An air outlet channel penetrating through the shell is arranged in the shell, one end of the air outlet channel is an air outlet and is positioned on the front end surface of the shell, and the other end of the air outlet channel is a drainage port and is positioned on the rear end surface of the shell; be equipped with first air intake and second air intake on the inside wall of air-out passageway, and along the air-out direction of air-out passageway, the second air intake is located the front side of first air intake, all is equipped with water conservancy diversion spare in first air intake and the second air intake.

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

through set up the air-out passageway that link up in the casing, the interior heat transfer air current that gets into the air-out passageway from first air intake and second air intake blows off from the air outlet that is located on the preceding terminal surface of casing under the effect of water conservancy diversion spare, form the negative pressure region in the air-out passageway, make the indoor air near the drainage mouth that is located on the casing rear end face blow off jointly after being mixed in the air-out passageway by the negative pressure suction air-out passageway, form comfortable air-out air current, because the second air intake is located the front side of first air intake, therefore the air current that first air intake flows can form the effect of pushing forward to the air current that the second air intake flows, strengthen the air current pressure in the air-out passageway, improve the air supply distance, and can also form stronger negative pressure region at air-out passageway rear, improve the drainage effect, and then improve the air supply travelling comfort.

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 in the accompanying drawings, which correspond to the accompanying drawings and not in a limiting sense, in which elements having the same reference numeral designations represent like elements, and in which:

fig. 1 is a schematic structural diagram of an air conditioner indoor unit according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of a rear end face of a housing provided by an embodiment of the present disclosure;

fig. 3 is a schematic view illustrating a position of the air guide provided in the embodiment of the present disclosure;

FIG. 4 is a schematic structural view of a flow guide provided by an embodiment of the present disclosure;

fig. 5 is a schematic structural view of an annular baffle provided in an embodiment of the present disclosure;

FIG. 6 is a schematic view of the arrangement positions of the first air inlet channel and the second air inlet channel provided by the embodiment of the disclosure;

FIG. 7 is a schematic view of a first inlet airflow channel provided by the disclosed embodiment;

FIG. 8 is a schematic structural view of a second inlet airflow channel provided by the embodiment of the disclosure;

fig. 9 is a schematic structural view of another air conditioning indoor unit provided in the embodiment of the present disclosure;

fig. 10 is a schematic structural view of another air conditioning indoor unit provided in the embodiment of the present disclosure.

Reference numerals:

100. a housing; 101. a front end face; 102. a rear end face; 110. an air outlet channel; 111. an air outlet; 112. a drainage opening; 113. a first air inlet; 114. a second air inlet; 200. a flow guide member; 210. an annular flow conductor; 211. coarse opening; 212. a thin opening; 220. an annular jet orifice; 230. connecting sheets; 231. an arc-shaped surface; 300. a first air intake channel; 310. a first direct current section; 320. a first reflux unit; 330. a first heat exchange chamber; 400. a second air inlet channel; 410. a second direct current section; 420. a second reflux unit; 430. a second heat exchange chamber; 500. mounting a boss; 510. an air inlet groove.

Detailed Description

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

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

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

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

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

With reference to fig. 1-3, in some embodiments, an air conditioning indoor unit includes: a housing 100. An air outlet channel 110 penetrating through the shell 100 is arranged in the shell 100, one end of the air outlet channel 110 is an air outlet 111 and is positioned on the front end surface 101 of the shell 100, and the other end of the air outlet channel 110 is a drainage port 112 and is positioned on the rear end surface 102 of the shell 100; the inner side wall of the air outlet channel 110 is provided with a first air inlet 113 and a second air inlet 114, and in the air outlet direction of the air outlet channel 110, the second air inlet 114 is located at the front side of the first air inlet 113, and flow guide elements 200 are arranged in both the first air inlet 113 and the second air inlet 114.

By adopting the air-conditioning indoor unit provided by the embodiment of the disclosure, through the through air outlet channel 110 arranged in the casing 100, the internal heat exchange airflow entering the air outlet channel 110 from the first air inlet 113 and the second air inlet 114 is blown out from the air outlet 111 arranged on the front end surface 101 of the casing 100 under the action of the flow guide member 200, and a negative pressure region is formed in the air outlet channel 110, so that the indoor air near the drainage port 112 arranged on the rear end surface 102 of the casing 100 is sucked into the air outlet channel 110 by negative pressure and is mixed with the heat exchange airflow to be blown out together, and a comfortable air outlet airflow is formed, because the second air inlet 114 is arranged at the front side of the first air inlet 113, the airflow flowing out from the first air inlet 113 can form a forward pushing effect on the airflow flowing out from the second air inlet 114, the airflow pressure in the air outlet channel 110 is enhanced, the air supply distance is increased, and a stronger negative pressure region can be formed behind the air outlet channel 110, improve the drainage effect, and then improve the air supply travelling comfort.

Optionally, the flow surface of the air outlet channel 110 is circular, and the first air inlet 113 and the second air inlet 114 disposed on the inner side wall of the air outlet channel 110 are both annular. Like this, make the whole columniform runner that is of air-out passageway 110, the air current can be unobstructed flows in air-out passageway 110, can blow in annular air inlet airflow to air-out passageway 110 through setting up in the annular first air intake 113 and the second air intake 114 of air-out passageway 110 inside wall, improve the homogeneity of air inlet, and air inlet airflow can form more even air-out under the water conservancy diversion effect of water conservancy diversion piece 200, the air current that blows in through the annular first air intake 113 can be better acts on the air current that second air intake 114 insufflates, strengthen the pressure in the air-out passageway 110, improve the air supply distance.

As shown in fig. 4-5, in some alternative embodiments, the flow guide member 200 includes a plurality of annular flow guide bodies 210, the annular flow guide bodies 210 are uniformly arranged along an axial direction thereof, centers of the annular flow guide bodies 210 are located on the same axis, and an annular jet opening 220 is defined between adjacent annular flow guide bodies 210. Thus, the flow guiding element 200 is formed by the plurality of annular flow guiding bodies 210 which are uniformly arranged in the front and back direction, so that the flow guiding element 200 can be matched with the annular first air inlet 113 and the annular second air inlet 114, and is better installed in the first air inlet 113 and the annular second air inlet 114, the inlet air flow blown in through the first air inlet 113 and the annular second air inlet 114 can be blown out from the annular jet orifice 220 after being more uniformly guided, and because the plurality of flow guiding elements 200 are uniformly arranged in the front and back direction, in the adjacent annular jet orifices 220, the air flow blown out from the annular jet orifice 220 at the back can form a pushing effect on the air flow blown out from the annular jet orifice 220 at the front, so as to further enhance the air flow pressure in the air outlet channel 110, thereby enhancing the air supply distance while enhancing the air outlet uniformity, and because the air flow pressure in the air outlet channel 110 is enhanced, a stronger negative pressure area can be formed behind the air outlet channel 110, the drainage effect is improved, and the air current that the annular jet orifice 220 jetted out moreover can form the effect that surrounds to the air current that drainage mouth 112 introduced, and the mixed effect of the indoor air current of reinforcing introduction and heat transfer air current further improves the air supply travelling comfort.

Optionally, the annular flow conductor 210 is a trumpet-like structure with an outer side curved towards its central axis. Thus, the outer annular surface of the annular flow guide body 210 forms a curved surface capable of guiding flow, because the first air inlet 113 and the second air inlet 114 are both annularly arranged on the inner side wall of the air outlet channel 110, and the flow guide members 200 are arranged in the first air inlet 113 and the second air inlet 114, and the flow guide members 200 are composed of a plurality of annular flow guide bodies 210 with horn-shaped structures, when air is supplied into the air outlet channel 110 through the first air inlet 113 and the second air inlet 114, the inlet air flow is firstly blown onto the outer annular surface of the annular flow guide bodies 210, so that the inlet air flow is better guided through the plurality of annular flow guide bodies 210, the inlet air flow is more uniformly blown into the air outlet channel 110, an air flow deviated to the central axis of the air outlet channel 110 is formed, a strong air supply flow is converged in the central axis area of the air outlet channel 110, and the air supply distance is increased.

Optionally, the annular baffles 210 have a wide mouth 211 and a narrow mouth 212, and the narrow mouths 212 of the plurality of annular baffles 210 in the baffle 200 are all disposed towards the outlet opening 111. In this way, since the annular flow guiding bodies 210 are in a trumpet-shaped structure, the thin openings 212 of the plurality of annular flow guiding bodies 210 in the flow guiding member 200 are all arranged towards the air outlet 111, so that the air flow guided by the outer annular surface of the annular flow guiding bodies 210 can be better jetted towards the air outlet 111 of the air outlet channel 110.

Optionally, in adjacent annular flow conductors 210, an annular jet opening 220 is defined between an outer annular face of a following annular flow conductor 210 and an inner annular face of a preceding annular flow conductor 210. Like this, make the air inlet air current that blows in through first air intake 113 and second air intake 114 can be guided with the interior anchor ring of annular baffle 210 in the front with the outer anchor ring at annular baffle 210 at the back jointly, make the regional skew to the axis of air-out passageway 110 that the air current that jets out through annular jet outlet 220 can be better, collect in the axis region of air-out passageway 110 and form powerful air supply air current, improve the air supply distance, and powerful air outlet air current can form stronger negative pressure region in air-out passageway 110 rear, improve the drainage effect, and then improve the air supply travelling comfort.

Optionally, the inner ring diameter of the annular flow conductor 210 is the same as the inner diameter of the air outlet channel 110. Therefore, the flow guide member 200 composed of the plurality of annular flow guide bodies 210 can be hidden and installed in the annular first air inlet 113 and the annular second air inlet 114, so that the appearance is attractive, the flow guide member 200 can be prevented from blocking the incoming air at the rear, and the loss of the air flow pressure is reduced.

Alternatively, the plurality of annular flow conductors 210 are connected by a plurality of connecting pieces 230, the plurality of connecting pieces 230 are provided, and the plurality of connecting pieces 230 are arranged along the annular surface of the annular flow conductor 210. Like this, connect a plurality of annular baffle bodies 210 front and back through connection piece 230 and constitute water conservancy diversion piece 200, can strengthen the overall stability of water conservancy diversion piece 200, and the connection piece 230 that sets up a plurality of anchor ring arrangements along annular baffle body 210 not only can constitute water conservancy diversion piece 200 with the firm connection of a plurality of annular baffle bodies 210 together, can also play the effect of separating the water conservancy diversion to the air inlet air current, the water conservancy diversion effect of water conservancy diversion piece 200 has further been improved, the homogeneity of the air outlet air current after making water conservancy diversion piece 200 water conservancy diversion is better.

Alternatively, the connecting piece 230 is parallel to the central axis of the annular flow conductor 210 in the axial direction of the annular flow conductor 210. Thus, since the first air inlet 113 and the second air inlet 114 are both annular, the intake airflow is radially intake relative to the annular flow guiding body 210, so that the connecting piece 230 is axially parallel to the annular flow guiding body 210, which can reduce interference of the connecting piece 230 on the intake airflow and reduce pressure loss of the intake airflow.

Optionally, in a radial direction of the annular flow conductor 210, the connecting piece 230 has an arc-shaped face 231 curved away from its radial direction. Like this, because first air intake 113 and second air intake 114 all are the annular, consequently the air inlet air current radially carries out the air inlet for annular baffle 210, consequently makes connection piece 230 have the arcwall face 231 of its radial bending of dorsad can be better carry out the water conservancy diversion to the air inlet air current, makes the flow direction of air inlet air current take place the skew, forms spiral air-out, has improved the homogeneity of air supply.

As shown in fig. 6 to 9, in some optional embodiments, the indoor unit of an air conditioner further includes: a first intake air flow passage 300 and a second intake air flow passage 400. One end of the first air inlet channel 300 is sleeved outside the air outlet channel 110 and is communicated with the first air inlet 113; one end of the second air inlet channel 400 is sleeved outside the air outlet channel 110 and is communicated with the second air inlet 114. Like this, carry the heat transfer air current in to first air intake 113 through first air inlet runner 300, carry the heat transfer air current in to second air intake 114 through second air inlet runner 400, and establish first air inlet runner 300 and second air inlet runner 400 respectively in the outside of air-out passageway 110, thereby better form annular air inlet in first air intake 113 and second air intake 114 department, the air inlet homogeneity of first air intake 113 with second air intake 114 has been improved, and the air inlet air current that the homogeneity is higher can form more even air-out under the water conservancy diversion effect of water conservancy diversion spare 200, the air current that blows in through annular first air intake 113 can be better acts on the air current that second air intake 114 blew in, strengthen the pressure in the air-out passageway 110, improve the air supply distance.

Optionally, the wind outlet channel 110 is defined by the first air inlet channel 300 and the second air inlet channel 400. Therefore, the first air inlet channel 300 is communicated with the air outlet channel 110 through the first air inlet 113, and the second air inlet channel 400 is communicated with the air outlet channel 110 through the second air inlet 114, so that the air outlet channel 110 is defined by the first air inlet channel 300 and the second air inlet channel 400 together, that is, the air outlet channel 110 is composed of the first air inlet 113 and the second air inlet 114, the air inlet amount of the air outlet channel 110 can be increased, the airflow blown out from the first air inlet 113 can directly act on the airflow blown out from the second air inlet 114, and the air supply distance is further increased.

Optionally, the sidewall of one end of the second inlet duct 400 is attached to the sidewall of one end of the first inlet duct 300. Therefore, the second air inlet channel 400 is arranged close to the first air inlet channel 300, so that the second air inlet 114 is also close to the first air inlet 113 and is positioned at the front side of the first air inlet 113, the airflow blown in from the first air inlet 113 can directly act on the airflow blown in from the second air inlet 114, the airflow blown in from the first air inlet 113 can better push the second air inlet 114 to blow in to flow forwards, resultant force is formed in the air outlet channel 110, and the air supply distance is increased.

Optionally, the rear sidewall of the second air inlet channel 400 is attached to the front sidewall of the first air inlet channel 300 along the axial direction of the air outlet channel 110. Like this, because the second air intake 114 is located the front side of first air intake 113, and first air inlet runner 300 all overlaps with second air inlet runner 400 one end and locates on air-out passageway 110, and inject air-out passageway 110 jointly, consequently in the axial along air-out passageway 110, the back lateral wall of second air inlet runner 400 attaches in the front side wall setting of first air inlet runner 300, can make the air inlet stream of first air inlet runner 300 can be better blow in air-out passageway 110 through first air intake 113, the air inlet stream of second air inlet runner 400 can be better blow in air-out passageway 110 through second air intake 114, and the air stream that first air intake 113 blew in can be better promotes the air stream that second air intake 114 blew in, form powerful air supply, improve the air supply distance.

Alternatively, the flow guiding element 200 in the first air inlet 113 is fixedly mounted on the rear inner wall of the first air inlet channel 300 through a first annular seat, and the flow guiding element 200 in the second air inlet 114 is fixedly mounted on the rear inner wall of the second air inlet channel 400 through a second annular seat. Like this, through first annular seat and second annular seat with the water conservancy diversion spare 200 fixed mounting in first air intake 113 and the second air intake 114, can make the holding power that the water conservancy diversion spare 200 in first air intake 113 and the second air intake 114 received more even, the rocking that produces when leading air current is less, improve the stability of the water conservancy diversion spare 200 in first air intake 113 and the second air intake 114, better lead air current.

Optionally, the first air inlet channel 300 and the second air inlet channel 400 are both perpendicular to the axial direction of the air outlet channel 110. Like this, because first air intake 113 and second air intake 114 are the annular, and the air inlet direction is for following the radial of air-out passageway 110, consequently with the axial setting of first air inlet runner 300 with second air inlet runner 400 perpendicular to air-out passageway 110, make the air inlet air current in first air inlet runner 300 and the second air inlet runner 400 can be more unobstructed get into in first air intake 113 and the second air intake 114, reduce air inlet air current's loss of pressure, improve the air supply distance.

Optionally, the first intake runner 300 includes: a first straight section 310 and a first return section 320. The first straight flow part 310 is disposed at one side of the air outlet channel 110 and is communicated with a portion of the first air inlet 113; the first backflow portion 320 is in fluid communication with the first straight portion 310, is disposed at the other side of the air outlet channel 110, and is communicated with the rest of the first air inlet 113. Like this, the inlet air current flows towards the direction of first air intake 113 through first straight flow portion 310, and in the position part inlet air current that reaches first air intake 113 can directly get into first air intake 113, in the remaining part flowed into first backward flow portion 320, then flow to flowing into first air intake 113 after changing under the guide effect of first backward flow portion 320, make the annular first air intake 113 the air inlet that can be even, and the direction through first backward flow portion 320 makes the pressure loss of the inlet air current of first air intake 113 less, improve the air inlet effect of first air intake 113, and then improve the air-out effect.

Optionally, the first straight portion 310 is located on one side of a vertical line passing through a center of the first air inlet 113, the first return portion 320 is located on the other side of the vertical line passing through the center of the first air inlet 113, and the first straight portion 310 and the first return portion 320 together define the first air inlet 113. Therefore, the first backflow portion 320 is better communicated with the first straight portion 310, airflow flowing in the first straight portion 310 can smoothly enter the first backflow portion 320, and then enters the first air inlet 113 under the guiding effect of the first backflow portion 320, and the loss of the pressure of the intake airflow is reduced.

Optionally, the first backflow portion 320 is a semi-annular flow passage surrounding the air outlet channel 110. Therefore, the incoming air flow can be better guided, so that the incoming air flow flowing into the first return portion 320 through the first straight flow portion 310 can better enter the first air inlet 113 under the guiding action of the annular inner wall of the first return portion 320, and the pressure loss of the incoming air flow is reduced.

Alternatively, the diameter of the outer annular surface of the first backflow part 320 is the same as the height of the first straight part 310. Thus, the intake air flowing through the first straight flow part 310 can smoothly flow into the first return flow part 320, and the pressure loss of the intake air is reduced.

Optionally, the second intake air duct 400 includes: a second direct current part 410 and a second return part 420. The second straight flow part 410 is disposed at one side of the air outlet channel 110 and is communicated with a portion of the second air inlet 114; the second backflow part 420 is in fluid communication with the second straight flow part 410, is disposed at the other side of the air outlet channel 110, and is communicated with the rest of the second air inlet 114. Thus, the air inlet airflow flows towards the second air inlet 114 through the second straight portion 410, part of the air inlet airflow at the position where the air inlet 114 is reached can directly enter the second air inlet 114, the rest of the air inlet airflow flows into the second backflow portion 420, and then flows into the second air inlet 114 after being changed under the guiding action of the second backflow portion 420, so that the annular second air inlet 114 can uniformly supply air, the pressure loss of the air inlet airflow at the second air inlet 114 is small through the guiding action of the second backflow portion 420, the air inlet effect of the second air inlet 114 is improved, and the air outlet effect is further improved.

Optionally, the second straight flow part 410 is located at one side of a vertical line passing through a center of the second intake vent 114, the second return flow part 420 is located at the other side of the vertical line passing through the center of the second intake vent 114, and the second straight flow part 410 and the second return flow part 420 together define the second intake vent 114. Therefore, the second backflow part 420 is better communicated with the second straight flow part 410, airflow flowing in the second straight flow part 410 can smoothly enter the second backflow part 420, and then enters the second air inlet 114 under the guiding action of the second backflow part 420, so that the pressure loss of the intake airflow is reduced.

Optionally, the second backflow portion 420 is also a semi-annular flow passage surrounding the air outlet channel 110. Therefore, the inflow air inlet flow can be better guided, so that the air inlet flow flowing into the second backflow part 420 through the second straight flow part 410 can better enter the second air inlet 114 under the guiding action of the annular inner wall of the second backflow part 420, and the pressure loss of the air inlet flow is reduced.

Alternatively, the diameter of the outer circumferential surface of the second backflow part 420 is the same as the height of the second straight flow part 410. In this way, the intake air flowing through the second straight flow part 410 can smoothly flow into the second return flow part 420, and the pressure loss of the intake air is reduced.

It is understood that the height of the first straight part 310 refers to the distance between the lower end surface and the upper end surface of the first straight part 310 in the vertical direction; the height of the second straight flow portion 410 is a distance between a lower end surface and an upper end surface of the second straight flow portion 410 in the vertical direction.

Optionally, in the horizontal direction, the first straight portion 310 of the first inlet airflow channel 300 is located at one side of the outlet air channel 110, and the second straight portion 410 of the second inlet airflow channel 400 is located at the other side of the outlet air channel 110. Thus, the first air inlet channel 300 and the second air inlet channel 400 are conveniently arranged in the shell 100, and the space in the shell 100 is reasonably utilized.

Optionally, a first heat exchange chamber 330 and a second heat exchange chamber 430 are further disposed in the casing 100. The first heat exchange chamber 330 is communicated with the air inlet end of the first air inlet flow passage 300, the second heat exchange chamber 430 is communicated with the air inlet end of the second air inlet flow passage 400, and a heat exchanger and a fan are arranged in the first heat exchange chamber 330 and the second heat exchange chamber 430. Therefore, indoor air can flow into the first heat exchange chamber 330 and the second heat exchange chamber 430 for heat exchange, heat exchange airflow after heat exchange enters the air outlet channel 110 through the first air inlet channel 300 and the second air inlet channel 400, a strong air outlet airflow is formed under the action of the flow guide piece 200, a strong negative pressure area is formed behind the air outlet channel 110, indoor air near the drainage port 112 can be sucked and mixed with the air outlet airflow, and then the air supply distance and the air supply comfort are improved.

Optionally, the outer wall of the casing 100 is provided with a first air return opening and a second air return opening. The first air return opening is communicated with the first heat exchange chamber 330, and the second air return opening is communicated with the second heat exchange chamber 430. Therefore, indoor air enters the first heat exchange chamber 330 and the second heat exchange chamber 430 through the first air return opening and the second air return opening respectively, is blown into the air outlet channel 110 after exchanging heat with the heat exchanger, forms strong air outlet airflow under the action of the flow guide piece 200, and improves air supply distance and comfort.

As shown in fig. 10, in some optional embodiments, the indoor unit of an air conditioner further includes: the boss 500 is installed. The mounting boss 500 is provided on the rear end surface 102 of the housing 100. Like this, hang this air conditioning indoor set through installation boss 500 and put and install on indoor wall, make to have great clearance between the rear end face 102 of casing 100 and the wall, because drainage mouth 112 is located the rear end face 102 of casing 100, consequently, make to have great clearance between the rear end face 102 of casing 100 and the wall, can provide sufficient drainage space for drainage mouth 112, avoid the wall to cause the shutoff to drainage mouth 112, better introduction room air mixes with the heat transfer air current, form gentle air-out air current, improve the air supply travelling comfort.

Optionally, the mounting boss 500 is provided with an air inlet groove 510 at a position corresponding to the drainage port 112. Thus, when the indoor unit of the air conditioner is hung and installed on an indoor wall through the installation boss 500, a gap is formed between the rear end surface 102 of the casing 100 and the wall, and the installation boss 500 is provided with the air inlet groove 510 at a position corresponding to the drainage port 112, so that indoor air can smoothly enter the drainage port 112 through the air inlet groove 510 to be mixed with heat exchange airflow in the air outlet channel 110, and the air supply comfort is improved.

Optionally, the mounting boss 500 is provided with a hanging groove, so that when the air-conditioning indoor unit is mounted, a bracket matched with the hanging groove can be mounted on a wall to be mounted, and then the hanging groove is clamped into the bracket to complete mounting, thereby facilitating mounting of the air-conditioning indoor unit.

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. An indoor unit of an air conditioner, comprising:

the air conditioner comprises a shell (100), wherein an air outlet channel (110) penetrating through the shell (100) is arranged in the shell (100), one end of the air outlet channel (110) is an air outlet (111) and is positioned on the front end surface (101) of the shell (100), and the other end of the air outlet channel (110) is a drainage port (112) and is positioned on the rear end surface (102) of the shell (100);

the air outlet structure is characterized in that a first air inlet (113) and a second air inlet (114) are formed in the inner side wall of the air outlet channel (110), the second air inlet (114) is located on the front side of the first air inlet (113) in the air outlet direction of the air outlet channel (110), and a flow guide piece (200) is arranged in each of the first air inlet (113) and the second air inlet (114).

2. The indoor unit of claim 1, wherein the flow surface of the outlet duct (110) is circular, and the first inlet (113) and the second inlet (114) disposed on the inner sidewall of the outlet duct (110) are both annular.

3. The indoor unit of air conditioner as claimed in claim 1, wherein the flow guide member (200) comprises a plurality of annular flow guide bodies (210), the annular flow guide bodies (210) are uniformly arranged along the axial direction, the centers of the annular flow guide bodies are located on the same axis, and an annular jet opening (220) is defined between adjacent annular flow guide bodies (210).

4. The indoor unit of claim 3, wherein the plurality of annular flow conductors (210) are connected by a plurality of connecting pieces (230), the plurality of connecting pieces (230) are provided, and the plurality of connecting pieces (230) are arranged along the annular surface of the annular flow conductor (210).

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

one end of the first air inlet channel (300) is sleeved outside the air outlet channel (110) and is communicated with the first air inlet (113);

and one end of the second air inlet channel (400) is sleeved outside the air outlet channel (110) and is communicated with the second air inlet (114).

6. The indoor unit of air conditioner as claimed in claim 5, wherein the sidewall of one end of the second air inlet duct (400) is attached to the sidewall of one end of the first air inlet duct (300).

7. The indoor unit of claim 5, wherein the first intake duct (300) comprises:

a first straight flow part (310) which is arranged at one side of the air outlet channel (110) and is communicated with the part of the first air inlet (113);

and the first backflow part (320) is communicated with the first straight flow part (310), is arranged on the other side of the air outlet channel (110), and is communicated with the rest part of the first air inlet (113).

8. An indoor unit of an air conditioner according to claim 7, wherein the first return portion (320) is a semi-annular flow passage surrounding the outlet air duct (110).

9. An indoor unit of an air conditioner according to any one of claims 1 to 8, further comprising:

and a mounting boss (500) provided on the rear end surface (102) of the housing (100).

10. The indoor unit of claim 9, wherein the mounting boss (500) is provided with an air intake groove (510) at a position corresponding to the air-guiding outlet (112).

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