CN114811738A

CN114811738A - Air conditioner indoor unit and air conditioner

Info

Publication number: CN114811738A
Application number: CN202210270795.2A
Authority: CN
Inventors: 张中晓; 顾超; 张吉义; 蔡艳芳
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Priority date: 2022-03-18
Filing date: 2022-03-18
Publication date: 2022-07-29

Abstract

The application relates to the technical field of air conditioners, and discloses an air conditioner indoor unit, includes: the air inlet and the air outlet are arranged on the same side plate of the shell; the heat exchange assembly is arranged in the shell; the fan assembly is arranged in the shell, and the redirection air duct is arranged in an air field between the fan assembly and the heat exchange assembly so as to guide the air blown out by the fan assembly to the air outlet. The change wind channel in this application, can be smooth blow off behind the wind guide that blows off the fan subassembly to the air outlet, realize the change to the wind direction. The application also discloses an air conditioner.

Description

Air conditioner indoor unit and air conditioner

Technical Field

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

Background

Air conditioners are often used to condition indoor air, such as duct type air conditioners. The air pipe type air conditioner comprises an air conditioner outdoor unit and an air conditioner indoor unit, wherein the air conditioner indoor unit comprises a shell, a heat exchange assembly, a fan assembly and the like, wherein the heat exchange assembly, the fan assembly and the like are arranged in the shell. The shell is provided with an air inlet and an air outlet. When the air conditioner equipment runs, the fan component rotates to cause airflow to flow in from the air inlet, flow through the heat exchange component and exchange heat with the heat exchange component, and finally blow out from the air outlet, so that the temperature adjustment of the indoor air conditioner of a user is completed.

An indoor air conditioner unit of an air duct type air conditioner is generally installed in a ceiling of a user room, an air inlet grille and an air outlet panel suitable for airflow to pass through are installed on the ceiling, and an air inlet and an air outlet of the indoor air conditioner unit correspond to the air inlet and the air outlet respectively. Typically, the outlet panel is arranged in a horizontal position below the ceiling, so that the heat-exchanged air flow will eventually enter the indoor space from below the ceiling.

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 air-conditioning indoor unit of the air duct type air conditioner is complex to disassemble and assemble, when an internal structural part needs to be replaced or maintained, a front panel and a lower panel of a suspended ceiling need to be disassembled, and the disassembly, assembly and maintenance are complex.

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 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 air conditioner indoor unit and an air conditioner, and aims to solve the technical problems that an air inlet of an air duct machine is located in front of a suspended ceiling, an air outlet of the air duct machine is located below the suspended ceiling, and the disassembly, assembly and maintenance are complex.

In some embodiments, the air conditioning indoor unit includes: the air inlet and the air outlet are arranged on the same side plate of the shell; the heat exchange assembly is arranged in the shell; the fan assembly is arranged in the shell, and the redirection air duct is arranged in an air field between the fan assembly and the heat exchange assembly so as to guide the air blown out by the fan assembly to the air outlet.

In some embodiments, the redirection air duct projects to a plane where the air outlet of the fan assembly is located, and the obtained projected area is greater than or equal to the area of the air outlet of the fan assembly.

In some embodiments, the redirecting duct includes a ramp and/or a curved surface.

In some embodiments, the redirecting duct comprises: the first windward section is close to an air outlet of the fan assembly; and the second windward section extends along the first windward section and is far away from the air outlet of the fan assembly, wherein the first windward section is an inclined plane, and the second windward section is a curved surface.

In some embodiments, the redirecting air duct is a curved surface, and the curved surface comprises an inner concave surface and an outer convex surface, wherein the inner concave surface and/or the outer convex surface is a windward surface.

In some embodiments, the redirecting duct comprises: the first windward section is close to an air outlet of the fan assembly; and the second windward section extends along the first windward section and is far away from the air outlet of the fan assembly, wherein the first windward section is an inner concave surface, and the second windward section is an outer convex surface and/or an inner concave surface.

In some embodiments, the inner concave surface includes a front end and a rear end in a direction of wind blowing of the fan assembly, wherein a tangent of the rear end of the inner concave surface is perpendicular to the heat exchange assembly.

In some embodiments, the area of the first windward section is less than or equal to the area of the second windward section.

In some embodiments, the air inlet includes a first air inlet and a second air inlet, the air outlet is disposed between the first air inlet and the second air inlet, the fan assembly includes a first fan and a second fan disposed in a blowing manner, the air-redirecting duct is disposed between the first fan and the second fan, and the air-redirecting duct includes: the windward side of the first redirection air duct faces the first fan so as to guide the wind blown out by the first fan to the air outlet; and the windward side of the second redirection air duct faces the second fan so as to guide the wind blown out by the second fan to the air outlet.

In some embodiments, the first air inlet, the second air inlet and the air outlet are disposed on a front panel of the housing.

In some embodiments, the air conditioner comprises an air conditioner indoor unit as described above.

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

the embodiment of the disclosure provides an air conditioner indoor unit, which comprises a casing, a heat exchange assembly, a fan assembly and a redirection air duct, wherein the heat exchange assembly, the fan assembly and the redirection air duct are arranged in the casing. The air inlet and the air outlet are arranged on the same side plate of the shell, and are arranged on a direction-changing air channel in an air field between the fan assembly and the heat exchange assembly, so that air blown out of the fan assembly is guided to the air outlet. Through the setting of changing to the wind channel, realized that air intake and air outlet set up on same curb plate, with the effectual direction change guide of the wind of fan subassembly, blow out from air outlet department. When structural components inside the air duct machine need to be replaced or maintained, only the side plates where the air inlet and the air outlet are located need to be detached, and therefore replacement or maintenance of internal structural components of the air duct machine is simplified.

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 structural diagram of an air conditioner indoor unit provided in an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of a redirecting duct provided in an embodiment of the disclosure;

FIG. 3 is a schematic structural diagram of another redirecting air duct provided by an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of another redirecting duct provided by an embodiment of the present disclosure;

FIG. 5 is a schematic structural view of another redirecting duct provided by an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of another redirecting duct provided by an embodiment of the present disclosure;

FIG. 7 is a schematic view illustrating the redirection effect of the redirection duct provided by the embodiment of the present disclosure;

FIG. 8 is a schematic structural view of another redirecting duct provided by an embodiment of the present disclosure;

FIG. 9 is a schematic structural view of another redirecting duct provided by an embodiment of the present disclosure;

FIG. 10 is a schematic structural view of another redirecting duct provided by an embodiment of the present disclosure;

FIG. 11 is a schematic view of a symmetrically arranged redirecting duct provided by embodiments of the present disclosure;

fig. 12 is a schematic structural diagram of a motor base provided in an embodiment of the present disclosure;

FIG. 13 is a schematic structural diagram of a centrifugal fan provided in an embodiment of the present disclosure;

FIG. 14 is a schematic structural view of a separator provided by an embodiment of the present disclosure;

fig. 15 is a schematic structural diagram of another motor base provided in the embodiment of the present disclosure.

Reference numerals:

100: a housing; 110: a front panel; 111: an air inlet; 112: an air outlet; 120: a base plate;

200: a centrifugal fan; 210: an impeller; 220: a volute; 221: an air suction opening; 222: an air outlet; 223: a flange; 224: a hook; 230: a single-shaft motor; 240: a double output shaft motor; 250: a motor base; 251: a support; 260: a redirection air duct; 261: a first windward section; 262: a second windward section; 263: an upper windward section; 264: a lower windward section; 2611: a first tangent line; 2621: a second tangent line; 2622: a third tangent line; 2631: a first protruding air guiding section; 2641: a second protruding air guiding section;

300: a partition plate; 310: an installation port; 311: a bayonet;

400: a heat exchanger.

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.

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 application provides an air conditioner, such as tuber pipe formula air conditioner, including machine and the air condensing units in the air conditioning.

With reference to fig. 1 to 15, an embodiment of the present disclosure provides an indoor unit of an air conditioner, including a casing 100, a heat exchange assembly, a fan assembly, and a redirection duct 260. Wherein, the same side plate of the casing 100 is provided with an air outlet 112 and an air inlet 111. The heat exchange assembly is disposed in the cabinet 100. The heat exchange assembly is located at the air outlet 112 or the air inlet 111. The fan assembly is disposed in the casing 100. The redirection air duct 260 is disposed in the air field between the fan assembly and the heat exchange assembly to guide the air blown out by the fan assembly to the air outlet 112.

As shown in fig. 1 and fig. 2, with the air conditioning indoor unit according to the embodiment of the present disclosure, indoor air enters the casing 100 from the air inlet 111, and under the blowing action of the fan assembly, air in the casing 100 is redirected by the redirecting duct 260, blown to the air outlet 112, and finally blown into the room. Optionally, the redirecting duct 260 redirects the air blown by the fan assembly by 90 ° and then blows the air out of the heat exchange assembly.

The air-redirecting duct 260 is arranged in the air field, so that the air blown out from the fan assembly can be redirected, and finally smoothly blown out from the air outlet 112, and the air inlet 111 and the air outlet 112 of the indoor unit of the air conditioner can be arranged on the same side plate of the casing 100. When the internal components of the air conditioning indoor unit need to be maintained or replaced, only the side plate provided with the air inlet 111 and the air outlet 112 needs to be disassembled, so that the disassembly, assembly and maintenance of the air conditioning indoor unit are simplified.

Alternatively, the air conditioning indoor unit may be a duct type air conditioner. Alternatively, the intake vent 111 and the exhaust vent 112 may be provided to the front panel 110 of the cabinet, as shown in fig. 1. Therefore, when the air duct machine needs to be disassembled, assembled and maintained, only the front air outlet grille needs to be disassembled. Alternatively, the intake and exhaust ports may be provided at a lower panel of the cabinet 100. Generally, the area of the lower part of the ceiling decorated by a user is large, the air inlet and the air outlet are arranged on the lower panel of the shell, the areas of the air inlet and the air outlet can be increased, and meanwhile, the replacement and the maintenance of internal structural components of the indoor unit of the air conditioner are facilitated.

Optionally, the redirection air duct 260 projects onto a plane where the air outlet 222 of the fan assembly is located, and the obtained projected area is larger than or equal to the area of the air outlet 222 of the fan assembly.

It can be understood that, as shown in fig. 7, the entire windward side of the redirection duct 260 projects in the direction of the air outlet 222 of the fan assembly, i.e., to the left side in the figure, and the obtained projection overlaps with the air outlet 222 of the fan assembly, or the projected portion overlaps with the air outlet 222 of the fan assembly. The redirection duct 260 is used to redirect the air blown out from the air outlet 222 of the fan assembly. In the embodiment of the present disclosure, the projection area of the redirection air duct 260 is greater than or equal to the area of the air outlet 222 of the fan assembly, so that the air blown out from the air outlet 222 of the fan assembly can be redirected completely and blown out from the air outlet 112, thereby improving the redirection effect of the air blown out from the air outlet 222 of the fan assembly and improving the heat exchange effect of the heat exchange assembly.

Optionally, the redirecting ducts include a ramp and/or a curved surface.

Alternatively, the windward side of the redirection duct may be a slope, which slopes from the exhaust outlet 222 of the fan assembly to the heat exchange assembly, as shown in fig. 3. Alternatively, the windward side of the redirection duct may also be curved, as shown in fig. 5 and 6.

Optionally, the redirected duct includes a first windward section 261 and a second windward section 262. The first windward section 261 is adjacent to the fan assembly exhaust port 222. The second windward section 262 extends along the first windward section 261 and is away from the air outlet 222 of the fan assembly. The first windward section 261 is an inclined plane, and the second windward section 262 is a curved plane.

As shown in fig. 4, the first windward section 261 of the redirection duct is an inclined plane, and the second windward section 262 is a curved surface. The wind has a coanda effect, and a part of the wind blown out by the wind channel assembly is redirected under the action of the redirecting wind channel 260, and is blown out after passing through the heat exchange assembly, and the other part of the wind can advance along the redirecting wind channel 260. In the embodiment of the present disclosure, the redirection air duct 260 is divided into at least two windward sections, and when the wind advances along the first windward section 261 under the action of the coanda effect, because the second windward section 262 is a curved surface, the connection between the curved surface and the inclined surface breaks the coanda effect of the wind of the first windward section 261, so that the wind blows from the rear end of the first windward section 261 to the heat exchange assembly, thereby improving the heat exchange uniformity of the heat exchange assembly, and simultaneously improving the wind outlet uniformity at the wind outlet 112.

Optionally, the redirection air duct 260 is a curved surface, and the curved surface includes an inner concave surface and an outer convex surface. Wherein, the inner concave surface and/or the outer convex surface are windward surfaces.

The inner concave windward side of the redirected air duct 260 is shown as a first windward section 261 in fig. 5, and the outer convex windward side of the redirected air duct 260 is shown as a second windward section 262 in fig. 5. The windward side of the redirection air duct 260 may be all concave, may also be all convex, and may also be a combination of concave and convex, so as to smoothly redirect the wind blown out from the fan assembly, guide it to the heat exchange assembly, and finally blow out from the air outlet 112.

Optionally, the redirected duct 260 includes a first windward section 261 and a second windward section 262. The first windward section 261 is adjacent to the fan assembly exhaust port 222. The second windward section 262 extends along the first windward section 261 and is away from the air outlet 222 of the fan assembly. The first windward section 261 is a concave surface, and the second windward section 262 is a convex surface and/or a concave surface.

As shown in fig. 5, the first windward section 261 is a concave surface, and the second windward section 262 is a convex surface. Part of the wind from the fan assembly will travel a distance along the first concave windward section 261. In this embodiment, the second windward section 262 is an outward convex surface, and compared with an inward concave windward surface, the outward convex windward surface breaks the wall attachment effect of wind more easily, reduces the forward phenomenon of wind along the air duct, accelerates the wind redirection effect of the wind blowing to the outward convex air duct, and improves the uniformity of the outlet air of the air outlet 112. Meanwhile, the rear end of the concave first windward section 261 is connected with the convex second windward section 262, and the wall attachment effect of the wind at the rear end of the first windward section 261 is broken, so that the wind blows to the heat exchange assembly, and the wind outlet uniformity of the air outlet 112 is improved.

Optionally, the first windward section 261 is concave, and the second windward section 262 is concave.

The windward side of two consecutive inner concave surfaces is advantageous for breaking the coanda effect of the wind, as shown in fig. 7. Part of wind blown out by the fan assembly can advance along the first windward section 261, when the wind moves to the junction of the first windward section 261 and the second windward section 262, the wall attachment effect of the wind is broken, the wind does not continue to advance along the redirection air duct but blows towards the heat exchange assembly, the wind outlet uniformity at the air outlet 112 is improved, and the wind is not concentrated to the air outlet 112 corresponding to the rearmost end of the redirection air duct 260 and is blown out.

Optionally, in a direction of wind blowing of the fan assembly, the concave surface comprises a front end and a rear end, wherein a tangent of the rear end of the concave surface is perpendicular to the heat exchange assembly.

It will be appreciated that the front end of the concave surface is the end near the air outlet 222 of the fan assembly and the rear end of the concave surface is the end away from the air outlet 222 of the fan assembly. The outer tangent line at the rear end of the inner concave surface is perpendicular to the heat exchange assembly, so that the air of the inner concave surface can be blown to the heat exchange assembly completely, the heat exchange effect of the heat exchange assembly is improved, and the air outlet uniformity of the air outlet 112 is improved.

Optionally, the area of the first windward section 261 is smaller than or equal to the area of the second windward section 262.

Compared with the second windward section 262, the first windward section 261 is closer to the air outlet 222 of the fan assembly, and the wall attachment effect of the wind on the first windward section 261 is more remarkable due to the sinking effect of the wind. In this embodiment, the area of the second windward section 262 is greater than or equal to the area of the first windward section 261, so that the wall attachment effect of wind is reduced as a whole, and the uniformity of the outlet air at the air outlet 112 is improved.

Optionally, in the direction of wind blowing of the fan assembly, the first windward section 261 includes a first front end and a first rear end, and the second windward section 262 includes a second front end and a second rear end. The first tangent 2611 at the first rear end and the heat exchange assembly form a first included angle, the second tangent 2621 at the second front end and the heat exchange assembly form a second included angle, and the first included angle is larger than the second included angle.

It will be appreciated that the first forward end of the first windward section 261 is closer to the fan assembly exhaust outlet 222 than the first aft end. The second front end of the second windward section 262 is closer to the air exit 222 of the fan assembly than the second rear end. Alternatively, "front end" may be understood as at the front end point and "back end" may be understood as at the back end point.

As shown in fig. 8, a first tangent line 2611 at the first rear end forms a first included angle a with the heat exchange assembly, a second tangent line 2621 at the second front end is parallel or nearly parallel with the heat exchange assembly, and the included angle between the second tangent line 2621 and the heat exchange assembly is 0 ° or nearly 0 °. In this embodiment, the first included angle a is greater than the second included angle, so that the wall attachment effect of the wind at the first rear end of the first windward section 261 is broken, the wind is cut out from the first rear end and blows towards the heat exchange assembly instead of continuously flowing towards the second windward section 262 from the wall attachment, and the uniformity of the outlet wind at the air outlet 112 is improved.

The larger the first included angle is, and the smaller the second included angle is, the larger the difference between the first included angle and the second included angle is, the more easily the coanda effect of the wind at the first rear end of the first windward section 261 is broken, so that the wind blows to the air outlet from the first rear end of the first windward section 261. Optionally, the first included angle is greater than or equal to 30 ° and less than or equal to 90 °. The second included angle is greater than or equal to 0 ° and less than or equal to 20 °.

As shown in fig. 9, a third tangent 2622 at the second rear end forms a third included angle b with the heat exchange assembly. The larger the third included angle is, the more beneficial to smoothly guide the wind at the second rear end of the second windward section 262 to the heat exchange assembly. Optionally, the third included angle is greater than or equal to 75 ° and less than or equal to 90 °.

Optionally, the cross section of the first windward section and/or the second windward section is the steepest curve.

The straight line segment distance between two points is shortest, but the path with the fastest speed between two points is a curve. For example, on an inclined plane, two tracks are arranged, one is a straight line and the other is a curve, and the heights of the starting point and the ending point are the same. Two small balls with the same mass and size slide down from the starting point at the same time, and the small ball of the curve arrives at the end point first instead. And the fastest curve among the plurality of curves may cause the ball to end the fastest. The steepest curve is a cycloid, which means a trajectory formed by a fixed point on a circle when the circle moves along a straight line. And the objects with different initial coordinates slide downwards on the same steepest curve, and can reach the terminal point at the same time.

The windward surfaces of the first windward section 261 and the second windward section 262 are both concave surfaces, and as shown in fig. 7, the cross section of the first windward section 261 and/or the second windward section 262 is the steepest curve. When the outlet air of the fan assembly moves along the first windward section 261 and the second windward section 262 which are curved at the highest speed, the air can be blown to the air outlet 112 quickly, and the outlet air speed of the indoor unit is increased. Moreover, the air blown by the fan assembly at different positions on the first windward section 261 and/or the second windward section 262 at the same time can flow to the rear end of the first windward section 261 and/or the second windward section 262 at the same time, so that the air outlet of the first windward section 261 and/or the second windward section 262 of the air-redirecting duct 260 is more uniform.

Optionally, the first windward section 261 projects to a plane where an air outlet of the fan assembly is located to obtain a first projection area, and the second windward section 262 projects to the plane where the air outlet of the fan assembly is located to obtain a second projection area. The sum of the first projection area and the second projection area is larger than or equal to the area of an air outlet of the fan assembly.

It can be understood that, as shown in fig. 7, the windward sides of the first windward section 261 and the second windward section 262 of the redirection duct 260 project in the direction of the air outlet 222 of the fan assembly, that is, project to the left side in the figure, and the sum of the first projection and the second projection is overlapped with the air outlet 222 of the fan assembly, or the sum of the first projection and the second projection is overlapped with the air outlet 222 of the fan assembly. The redirection duct 260 is used to redirect the air blown out from the air outlet 222 of the fan assembly. In the embodiment of the present disclosure, the sum of the first projection area and the second projection area is greater than or equal to the area of the air outlet 222 of the fan assembly, so that all the air blown out from the air outlet 222 of the fan assembly can be redirected and blown out from the air outlet 112, the effect of redirecting the air blown out from the air outlet 222 of the fan assembly is improved, and meanwhile, the heat exchange effect of the heat exchange assembly is improved.

Optionally, the first projected area is less than or equal to the second projected area.

Compared with the second windward section 262, the first windward section 261 is closer to the air outlet 222 of the fan assembly, and the coanda effect of the airflow on the first windward section 261 is larger. In order to reduce the proportion of the total wind of the fan assembly to the wind with the coanda effect, the area of the second windward section 262 is larger than the area of the first windward section 261, which can also be understood as the area of the second projection being larger than or equal to the area of the first projection. Therefore, the second windward section 262 is distributed with more wind to be redirected, so that the wall attachment effect of total wind is reduced, the redirection efficiency of the redirection air duct 260 is improved, and the wind outlet uniformity and the wind outlet efficiency of the wind at the wind outlet 112 are improved.

Optionally, the redirection duct 260 includes an upper windward section 263 and a lower windward section 264. The upper windward section 263 guides the upper wind blown out by the fan assembly to a first position of the outlet 112, and the lower windward section 264 guides the lower wind blown out by the fan assembly to a second position of the outlet 112. Wherein the first position is different from the second position. As shown in fig. 10.

The redirection duct 260 is used to redirect the air blown by the fan assembly. In the redirecting process, after the wind blown by the fan assembly blows to the redirecting air duct 260, a part of the wind generates a coanda effect and moves along the redirecting air duct 260. In this embodiment, the redirection air duct 260 is divided into an upper windward section 263 and a lower windward section 264. The upper windward section 263 guides the wind at the upper portion to the first position of the air outlet 112, and the lower windward section 264 guides the wind at the lower portion to the second position of the air outlet 112, so that the redirecting duct 260 guides the wind blown out by the fan assembly to be blown out from different positions of the air outlet 112, and the uniformity of the air outlet at the air outlet 112 is improved.

Optionally, upper windward section 263 includes a first protruding wind guiding section 2631, where first protruding wind guiding section 2631 is used to guide out wind moving along upper windward section 263; the lower windward section 264 includes a second protruding wind guiding section 2641, and the second protruding wind guiding section 2641 is used for guiding out the wind moving along the lower windward section 264. The first protruding wind guiding section 2631 is located in front of the second protruding wind guiding section 2641, or the first protruding wind guiding section 2631 is located behind the second protruding wind guiding section 2641.

As shown in fig. 10, the upper windward section 263 is a concave curved surface, and the concave curved surface is provided with a protrusion, that is, a first convex wind guiding section 2631. The first protruding guiding section 2631 is used to break the coanda effect of the wind, so that the wind blows from the first protruding guiding section 2631 to the air outlet 112; similarly, the lower windward section 264 is also a concave curved surface, and is provided with a protrusion, i.e., a second convex wind guiding section 2641. The second protruding guiding section 2641 is used to break the coanda effect of the wind, so that the wind blows from the second protruding guiding section 2641 to the air outlet 112. The first protruding air guiding section 2631 and the second protruding air guiding section 2641 are disposed in front of and behind each other, so that air is guided to be blown out from different positions of the air outlet 112, and uniformity of air outlet of the air outlet 112 is improved.

Optionally, upper windward section 263 includes a first upper windward section and a first lower windward section connected by first protruding wind guiding section 2631, and lower windward section 264 includes a first lower windward section and a second lower windward section connected by second protruding wind guiding section 2641. The first upper windward section and the second upper windward section are concave surfaces; and/or the first lower windward section and the second lower windward section are concave surfaces.

As shown in fig. 10, the first protruding wind guiding section 2631 divides the upper windward section into a first upper windward section and a first lower windward section, and the second protruding wind guiding section 2641 divides the lower windward section into a first lower windward section and a second lower windward section. Therefore, the wind can be guided to the air outlet from the rear ends of the first upper windward section, the first lower windward section, the second upper windward section and the second lower windward section, and the uniformity of the air outlet at the air outlet 112 is further improved. Optionally, the cross section of the first upper windward section and/or the second upper windward section is the steepest curve. The cross section of the first lower windward section and/or the second lower windward section is the steepest curve.

Optionally, in the air conditioning indoor unit provided by the embodiment of the present disclosure, the air inlet includes a first air inlet and a second air inlet, the air outlet is disposed between the first air inlet and the second air inlet, the fan assembly includes a first fan and a second fan, which are arranged in an opposite blowing manner, the redirection air duct is disposed between the first fan and the second fan, and the redirection air duct includes a first redirection air duct and a second redirection air duct. The windward side of the first redirecting duct faces the first fan to guide the wind blown out by the first fan to the air outlet, and the windward side of the second redirecting duct faces the second fan to guide the wind blown out by the second fan to the air outlet, as shown in fig. 1 and 2. It is understood that the foregoing embodiments of the "redirecting air duct" can be applied to the "first redirecting air duct" and the "second redirecting air duct" herein, and the description thereof is omitted here. Optionally, the first redirecting air duct and the second redirecting air duct are symmetrically arranged.

The indoor unit of the air conditioner comprises a heat exchange cavity provided with a heat exchange assembly and a fan cavity provided with a fan assembly. The fan cavity comprises a first fan cavity and a second fan cavity, and the two fan cavities are respectively arranged on the left side and the right side of the heat exchange cavity. The heat exchanger 400 in the heat exchange cavity is arranged at the air outlet 112.

In some embodiments, as shown in fig. 1, the cabinet 100 of the indoor unit is configured in a rectangular parallelepiped shape, and a ceiling installation manner is adopted, and the bottom plate 120 of the cabinet 100 is horizontally disposed, and one side plate of the cabinet 100 faces the indoor and is called a front panel 110. The air inlet 111 and the air outlet 112 of the casing 100 are both disposed on the front panel 110, so that other side plates of the casing 100, the bottom plate 120 and the top plate can be attached to a wall or a cabinet body according to decoration requirements, thereby hiding an indoor unit and further improving decoration effects.

Optionally, the fan assembly comprises a centrifugal fan 200, the centrifugal fan 200 comprising an impeller 210, the axis of the impeller 210 being parallel or perpendicular to the base plate 120 of the casing 100.

Optionally, as shown in fig. 2, the front panel 110 of the casing 100 is provided with an air outlet 112 and two air inlets 111, and the two air inlets 111 are respectively located at two sides of the air outlet 112. The fan assembly comprises two centrifugal fans 200, wherein the suction ports 221 of the two centrifugal fans 200 are respectively arranged at the two air inlets 111, and the air outlets 222 of the two centrifugal fans 200 are oppositely arranged. The two air-redirecting channels 260 are symmetrically disposed between the two centrifugal fans 200, and the air outlet 222 of each centrifugal fan 200 faces one air-redirecting channel 260, and are respectively used for guiding the air discharged from the two centrifugal fans 200 to flow to the air outlet 112.

In the above embodiment, a layout manner is adopted in which the air outlets 222 of the two centrifugal fans 200 are arranged oppositely, and the two redirecting air ducts 260 are symmetrically arranged between the two centrifugal fans 200. It can be seen that it is difficult to use a conventional ducted air duct where the air outlet 112 is long. The reason is that the conventional duct-type air duct needs to be connected to the air outlet 222 of the centrifugal fan 200 and the air outlet 112 of the casing 100 through two ends of the air duct, and the size of the port of the air duct is limited, which makes it difficult to adapt to the longer air outlet 112. In the invention, the two symmetrical redirecting air ducts 260 shown in fig. 2 are arranged, so that the limitation on the length of the air outlet 112 is broken, the length of the air outlet 112 is increased, and compared with the traditional pipeline type air duct, the manufacturing cost is reduced.

In some embodiments, as shown in fig. 12, centrifugal fan 200 further comprises a volute 220, and the fan assembly further comprises a baffle 300. The volute 220 defines a volute duct within which the impeller 210 is located; moreover, the first end of the volute air duct is an air suction port 221 of the centrifugal fan 200, and the second end of the volute air duct is an air exhaust port 222 of the centrifugal fan 200; the partition 300 is provided with a mounting opening 310; the volute 220 is located at one side of the partition 300, the second end of the volute air duct is mounted on the partition 300, and the air outlet 222 corresponds to the mounting opening 310, while the air outlet 222 faces the redirection air duct 260. In this way, the volute 220 can be effectively fixed by the partition 300. Indoor air enters the casing 100 from the air inlet 111, the impeller 210 sucks the air in the casing 100 into the volute air duct from the air suction opening 221 through centrifugal force when rotating, and blows the air to the redirection air duct 260 from the air outlet 222 after being compressed, and finally the air circulates to the air outlet 112 of the casing 100 along the two curved surfaces of the redirection air duct 260 and finally blows the air uniformly into the room.

Optionally, the rear end of the second end of the volute air duct extends out of the mounting opening 310 of the partition 300. The side wall of the second end of the volute air duct abuts against the inner wall of the mounting opening 310, so that the mounting opening 310 has a certain limiting effect on the air duct volute 220, and the connection stability between the volute 220 and the partition plate 300 is improved.

Optionally, a flange 223 is disposed around the second end of the volute air duct, and corresponding bolt holes are disposed on the flange 223 and the partition 300. The flange 223 may be fixed to the partition 300 using bolt fasteners fitted to the bolt holes.

Optionally, a plate rib is arranged at the joint of the flange 223 and the volute 220. The flange 223 is supported and protected by the plate ribs, and the connection strength between the flange 223 and the volute 220 is improved.

Optionally, as shown in fig. 13 and 14, the peripheral edge of the second end of the volute air duct is provided with a hook 224, and the peripheral edge of the mounting opening 310 of the partition 300 is provided with a bayonet 311. The hook 224 corresponds to the notch 311, and the volute 220 can be fixed to the partition 300 by engaging the hook 224 with the notch 311.

Optionally, the volute 220 includes an upper housing and a lower housing. The lower shell is detachably connected to the upper shell, and the volute air channel is defined by the upper shell and the lower shell after the upper shell and the lower shell are connected. After the upper and lower shells are disassembled, the components in the volute 220 can be conveniently overhauled.

Optionally, the axis of the impeller 210 of the centrifugal fan 200 is disposed parallel to the bottom plate 120 of the casing 100, and the centrifugal fan 200 further includes a single-shaft motor 230 and a motor base 250. The motor mount 250 is disposed on the partition 300 and corresponds to the single-shaft motor 230 for mounting and fixing the single-shaft motor 230. Thus, both the volute 220 and the motor mount 250 are mounted on the partition 300.

Optionally, the axis of the impeller 210 of the centrifugal fan 200 is disposed parallel to the bottom plate 120 of the casing 100, and the centrifugal fan 200 further includes a dual-output shaft motor 240 and a motor base 250. The motor base 250 is disposed on the partition 300 and corresponds to the dual output shaft motor 240 for installing and fixing the dual output shaft motor 240. Thus, both the volute 220 and the motor mount 250 are mounted on the partition 300.

Alternatively, the axis of the impeller 210 of the centrifugal fan 200 is perpendicular to the bottom plate 120 of the casing 100, and the centrifugal fan 200 is installed in a lying manner. The centrifugal fan 200 includes a single-shaft motor 230 and a motor base 250, as shown in fig. 15, the single-shaft motor 230 is disposed below the impeller 210 and the driving shaft penetrates the impeller 210, and the motor base 250 is disposed below the single-shaft motor 230 and fixed to the bottom plate 120 of the casing 100. The upper surface of the motor mount 250 is provided with a plurality of brackets 251. Therefore, the single-shaft motor 230 is fixed through the motor base 250, and the volute 220 is supported through the support 251, so that the centrifugal fan 200 is more stable.

Alternatively, the axis of the impeller 210 of the centrifugal fan 200 is perpendicular to the bottom plate 120 of the casing 100, and the centrifugal fan 200 is installed in a lying manner. The centrifugal fan 200 includes a single-shaft motor 230 and a motor base 250, the single-shaft motor 230 is disposed above the impeller 210 and the driving shaft penetrates the impeller 210, the motor base 250 is disposed above the single-shaft motor 230 and fixed on the top plate of the casing 100, and the motor base 250 is used for fixing the single-shaft motor 230. This lifts the single-shaft motor 230 by the motor mount 250.

Optionally, the heat exchange assembly includes a heat exchanger 400, and the heat exchanger 400 covers the air outlet 112 or the air inlet 111. If the heat exchanger 400 is disposed at the air inlet 111, the air enters the casing 100 from the air inlet 111 and exchanges heat with the heat exchange assembly; if the heat exchanger 400 is disposed at the air outlet 112, the air exchanges heat with the heat exchange assembly when being blown into the room from the air outlet 112.

Alternatively, the heat exchanger 400 is configured in a U shape, and an opening of the U shape faces the air outlet 112 or the air inlet 111. Thus, the U-shaped heat exchanger 400 can increase the heat exchange area and improve the cooling or heating efficiency of the indoor unit.

Alternatively, the heat exchanger 400 is configured in a plate shape, and the plate surface thereof is parallel to the plane of the air outlet 112 or the air inlet 111. Thus, the heat exchanger 400 having a plate shape parallel to the plane of the outlet 112 or the inlet 111 can save the installation space in the cabinet 100.

Alternatively, the heat exchanger 400 is configured in a plate shape, and the plate surface thereof is inclined to the plane of the air outlet 112 or the air inlet 111. Compared with the plate-shaped heat exchanger 400 parallel to the plane of the air outlet 112 or the air inlet 111, the plate-shaped heat exchanger 400 inclined to the plane of the air outlet 112 or the air inlet 111 can increase the heat exchange area and improve the cooling or heating efficiency of the indoor unit.

Optionally, a heat exchange assembly is disposed at the air inlet 111, and a purification assembly is disposed at the air outlet 112. The heat exchange component is used for exchanging heat with the air in the way, and the purification component is used for purifying the air in the way. When air enters the casing 100 from the air inlet 111, the air exchanges heat with the heat exchange assembly, and when the air in the casing 100 enters the indoor space from the air outlet 112, the air is purified by the purification assembly, so that the quality of the air outlet of the indoor unit is improved.

Optionally, a heat exchange assembly is disposed at the air outlet 112, and a purification assembly is disposed at the air inlet 111. The heat exchange component is used for exchanging heat with the air in the way, and the purification component is used for purifying the air in the way. Indoor air is purified by the purification component when entering the casing 100 from the air inlet 111, and the air in the casing 100 exchanges heat with the heat exchange component when entering the indoor from the air outlet 112, so that the quality of the air outlet of the indoor unit is improved.

Optionally, the cleaning assembly includes an air filter covering the air outlet 112 or the air inlet 111. Types of air filters include, but are not limited to, HEPA filters, glass fiber filters, electrostatic filters, activated carbon fiber filters.

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

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

the air inlet and the air outlet are arranged on the same side plate of the shell;

the heat exchange assembly is arranged in the shell;

a fan assembly disposed in the housing,

and the redirection air duct is arranged in an air field between the fan assembly and the heat exchange assembly so as to guide the air blown out by the fan assembly to the air outlet.

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

and the redirection air duct projects to the plane where the air outlet of the fan assembly is positioned, and the obtained projection area is larger than or equal to the area of the air outlet of the fan assembly.

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

the redirection air duct comprises an inclined surface and/or a curved surface.

4. The indoor unit of claim 3, wherein the redirection duct comprises:

the first windward section is close to an air outlet of the fan assembly; and the combination of (a) and (b),

and the second windward section extends along the first windward section and is far away from the air outlet of the fan assembly, wherein the first windward section is an inclined plane, and the second windward section is a curved surface.

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

the bend air duct is a curved surface, the curved surface comprises an inner concave surface and an outer convex surface,

wherein the inner concave surface and/or the outer convex surface is a windward surface.

6. The indoor unit of claim 5, wherein the redirection duct comprises:

a second windward section extending along the first windward section and far away from the air outlet of the fan component,

the first windward section is a concave surface, and the second windward section is an outer convex surface and/or a concave surface.

7. An indoor unit of an air conditioner according to claim 6,

the concave surface comprises a front end and a rear end along the wind blowing direction of the fan component,

and the tangent line of the rear end of the concave surface is perpendicular to the heat exchange assembly.

8. An indoor unit of an air conditioner according to claim 6,

the area of the first windward section is smaller than or equal to the area of the second windward section.

9. The indoor unit of an air conditioner according to any one of claims 1 to 8, wherein the air inlet includes a first air inlet and a second air inlet, the air outlet is disposed between the first air inlet and the second air inlet, the fan assembly includes a first fan and a second fan that are disposed in a blowing manner, the redirecting duct is disposed between the first fan and the second fan, and the redirecting duct includes:

the windward side of the first redirection air duct faces the first fan so as to guide the wind blown out by the first fan to the air outlet; and the combination of (a) and (b),

and the windward side of the second redirection air duct faces the second fan so as to guide the wind blown out by the second fan to the air outlet.

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

the first air inlet, the second air inlet and the air outlet are arranged on the front panel of the machine shell.

11. An air conditioner characterized by comprising an indoor unit of an air conditioner according to any one of claims 1 to 10.