CN114046563A

CN114046563A - Indoor unit of air conditioner

Info

Publication number: CN114046563A
Application number: CN202111451959.3A
Authority: CN
Inventors: 尹晓英; 王永涛; 张蕾; 李英舒
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: 2021-12-01
Filing date: 2021-12-01
Publication date: 2022-02-15
Anticipated expiration: 2041-12-01
Also published as: CN114046563B; WO2023098243A1

Abstract

The invention provides an indoor unit of an air conditioner, which comprises a shell, a fan and a fan, wherein the shell is provided with an air supply outlet, two air channels which are arranged side by side are formed in the shell, and outlets of the two air channels are communicated with the air supply outlet; and the middle air supply part is arranged between the two air channels in a reciprocating motion way between a retraction state and an extension state and is used for outputting airflow outwards in a controlled way; and is configured to: in a retracted state, the middle air supply part is positioned at the inner side of the air supply opening to allow the output airflow and the air outlet airflow of the two air channels to be blown to the air supply opening; and in the extended state, the middle air supply part divides the air supply outlet into two sections, and each section corresponds to the outlet of one air channel. The air supply adjusting mode of the air conditioner indoor unit is more diversified, and the air supply experience is better.

Description

Indoor unit of air conditioner

Technical Field

The invention relates to the technical field of air conditioning, in particular to an indoor unit of an air conditioner.

Background

With the development of the times and the progress of technology, users not only expect faster cooling and heating speeds of air conditioners, but also pay more attention to the comfort performance of the air conditioners.

Most of the existing air-conditioning indoor units are single cross-flow fans and single conventional air outlets, and the following problems exist: for a large living room, the air supply amount is insufficient. The air supply angle is small, the air supply distance is single, the air supply mode is single, and the user experience is influenced.

Disclosure of Invention

The invention aims to overcome the problems or at least partially solve the problems and provides an air conditioner indoor unit with better air supply experience and richer air supply adjusting modes.

It is a further object of the present invention to improve the mixing of the non-heat exchange air stream and the heat exchange air stream.

The invention further aims to improve the air quantity of each air channel.

In particular, the present invention provides an air conditioning indoor unit comprising:

the air conditioner comprises a shell, a fan cover and a fan, wherein the shell is provided with an air supply outlet, two air channels arranged side by side are formed in the shell, and outlets of the two air channels are communicated with the air supply outlet; and

the middle air supply part is arranged between the two air channels in a reciprocating manner between a retraction state and an extension state and is used for outputting airflow outwards in a controlled manner; and is configured to:

in the retracted state, the middle air supply part is positioned on the inner side of the air supply opening so as to allow the output airflow of the middle air supply part and the outlet airflow of the two air channels to be blown to the air supply opening; and is

In the extended state, the middle air supply part divides the air supply outlet into two sections, and each section corresponds to the outlet of one air duct.

Optionally, each air duct is defined by a first air duct wall and a second air duct wall which are arranged at intervals;

the two second air duct walls are adjacent and positioned between the two first air duct walls; and is

Each second air duct wall sequentially comprises a main body section and an adjusting section which are connected in a rotating mode along the airflow direction, so that when the middle air supply part is in different states, the two adjusting sections rotate to different angles, and the tail ends of the two adjusting sections are attached to the surface of the middle air supply part in an attached mode.

Optionally, the middle air supply part is of a hollow structure, and the outer surface of the middle air supply part comprises an air outlet surface facing the air supply opening and used for outputting airflow, and two side surfaces bent and extended from two sides of the air outlet surface in a direction away from the air supply opening;

when the middle air supply part is in the retracted state, the tail ends of the two adjusting sections respectively abut against the two transverse sides of the air outlet surface;

when the middle air supply part is in the extending state, the tail ends of the two adjusting sections respectively abut against the two side surfaces.

Optionally, each side face and the air outlet face form an obtuse angle.

Optionally, in a direction from upstream to downstream of the air ducts, the distance between the two air ducts gradually increases and then gradually decreases.

Optionally, in a direction from upstream to downstream of the air duct, a distance between the two second air duct walls gradually increases and then gradually decreases, and the two first air duct walls are both curved and have concave sides facing each other.

Optionally, the indoor unit of an air conditioner further includes: and each fan is arranged in one air duct.

Optionally, the indoor unit of an air conditioner further includes: and the two air guide devices are arranged at the air supply port and used for guiding the wind direction, and each air guide device is independently controlled and corresponds to one outlet of the air duct.

Optionally, the casing is a vertically extending column, the air supply outlet is open forward, and the two air ducts are arranged side by side along the transverse direction of the casing; and the middle air supply part is in a vertical bar shape.

Optionally, the output airflow of the middle air supply part is fresh air flow.

In the indoor unit of the air conditioner, the middle air supply part is arranged between the two parallel air channels, and the air flow output by the middle air supply part can be fresh air flow introduced from the outside, purified or filtered purified air flow or humidified air flow after humidification or can also be indoor normal-temperature air. The middle air supply part is telescopic, so that the indoor unit of the air conditioner has multiple air supply modes. For example, the intermediate air blowing unit may be extended to divide the air blowing port into two sections, so that the air blowing of the intermediate air blowing unit and the air blowing of the two air ducts are less affected by each other, and the air blowing can be performed relatively independently. The middle air supply part can be adjusted to be in a retracted state, so that output airflow of the middle air supply part and outlet airflow of the two air channels are blown to the air supply opening and are converged at the air supply opening, pressure difference is formed between the air supply opening and the two air channels during air supply, the outflow of the airflow in the middle air supply part can be driven, and the middle air supply part does not need to open a fan frequently or even omit the fan. And each air current mixes in advance at air supply opening department, especially when the middle air supply portion blows out for the new trend air current, the new trend can make indoor fresh and fresh speed faster with the heat transfer air current mixes in advance.

Furthermore, in the indoor unit of the air conditioner, the second air duct wall comprises the rotatable adjusting sections, so that when the middle air supply part is in different states, the two adjusting sections rotate to different angles, the tail ends of the two adjusting sections are attached to the surface of the middle air supply part, and waste caused by heat exchange airflow flowing out of the air duct flowing to a space between the two air ducts is avoided.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is an exploded schematic view of an indoor unit of an air conditioner according to an embodiment of the present invention;

fig. 2 is a schematic view of the indoor unit of the air conditioner shown in fig. 1, with the intermediate blowing unit in an extended state;

fig. 3 is a schematic view of the air conditioning indoor unit of fig. 2 switched to a state in which only the intermediate blowing unit is blowing air;

fig. 4 is a schematic view of the indoor unit of the air conditioner shown in fig. 1 when the intermediate blowing part is in a retracted state;

FIG. 5 is a schematic view of the intermediate blower in an extended state without blowing;

fig. 6 is a schematic view of the air conditioning indoor unit shown in fig. 5, in which the left air guide device guides air to the left and the right air guide device guides air to the right;

fig. 7 is a schematic view of the intermediate blowing section in a retracted state without blowing air.

Detailed Description

An air conditioning indoor unit according to an embodiment of the present invention will be described with reference to fig. 1 to 7. Where the orientations or positional relationships indicated by the terms "front," "back," "upper," "lower," "top," "bottom," "inner," "outer," "lateral," and the like are based on the orientations or positional relationships shown in the drawings, the description is for convenience only and to simplify the description, and no indication or suggestion is made that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.

The terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first," "second," etc. may explicitly or implicitly include at least one such feature, i.e., one or more such features. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. When a feature "comprises or comprises" a or some of its intended features, this indicates that other features are not excluded and that other features may be further included, unless expressly stated otherwise.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and "coupled" and the like are to be construed broadly and can, for example, be fixedly connected or detachably connected or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. Those skilled in the art should understand the specific meaning of the above terms in the present invention according to specific situations.

The invention provides an indoor unit of an air conditioner. An indoor unit of an air conditioner is an indoor part of the air conditioner for conditioning indoor air, such as cooling/heating, dehumidifying, introducing fresh air, and the like. The invention does not limit the style of the indoor unit of the air conditioner, and can be a wall-mounted type, a vertical type, a ceiling type and the like, and fig. 1 to 7 show the embodiment of the indoor unit of the vertical type air conditioner.

Fig. 1 is an exploded schematic view of an indoor unit of an air conditioner according to an embodiment of the present invention; fig. 2 is a schematic view of the indoor unit of the air conditioner shown in fig. 1, in which the intermediate blowing unit 70 is in an extended state; fig. 3 is a schematic view of the air conditioning indoor unit of fig. 2 switched to a state in which only the intermediate blowing unit 70 discharges air; fig. 4 is a schematic view of the air conditioning indoor unit shown in fig. 1, in a state where the intermediate blowing unit 70 is retracted.

As shown in fig. 1 to 4, an air conditioning indoor unit according to an embodiment of the present invention may generally include a cabinet 10 and an intermediate blowing part 70.

The casing 10 is provided with an air supply outlet 12, two air ducts 20 arranged side by side are formed in the casing 10, and outlets of the two air ducts 20 are communicated with the air supply outlet 12 to supply air to the indoor environment through the air supply outlet 12. Of course, the casing 10 may have other air supply ports. The casing 10 of the present embodiment includes a framework for forming a basic frame of the indoor unit and a duct wall for defining the duct 20. The blowing port 12 is used to blow a conditioned air flow in the cabinet 10 toward the room to condition the indoor air.

The intermediate blowing part 70 is reciprocatably disposed between the two ducts 20 between a retracted state and an extended state for controlled outward output of the air flow.

In the embodiment shown in fig. 1 to 7, the conditioned air output from the air duct 20 is a heat exchange air, that is, cold air produced by the indoor unit of the air conditioner in the cooling mode and hot air produced by the indoor unit of the air conditioner in the heating mode. The indoor unit of the air conditioner may be an indoor unit of an air conditioner that performs cooling/heating using a vapor compression refrigeration cycle system, and a heat exchanger 40 is provided therein. Indoor air enters the casing 10 through the air inlet, forms heat exchange airflow after heat exchange with the heat exchanger 40, enters the air duct 20 under the action of the fan 80, and is blown to the indoor environment through the air supply outlet 12.

The air flow from the intermediate blower 70 may be a non-heat exchange air flow, such as a fresh air flow introduced from outside the room. Specifically, the middle blowing part 70 has a cylindrical structure, and introduces the outdoor fresh air flow and then outputs the fresh air flow to the outside through an orifice structure of the cylindrical wall. Of course, the intermediate blower 70 may also include a fan to facilitate the flow of fresh air. Alternatively, the air flow output from the intermediate blowing unit 70 may be air flow purified and filtered by the cleaning member inside the casing 10, or humidified air flow, or may be room air at room temperature.

The intermediate blowing section 70 is configured to: in the retracted state, it is located inside the air blowing opening 12 to allow the output airflow thereof and the air outlet airflow of the two air ducts 20 to be blown towards the air blowing opening 12, as shown in fig. 4; in the extended state, the intermediate blower 70 divides the blower opening 12 into two sections, each corresponding to the outlet of one of the air ducts 20, as shown in fig. 2. This telescopic structure of the intermediate blowing part 70 allows the air conditioning indoor unit to have various blowing modes.

For example, as shown in fig. 2, the middle air supply part 70 is adjusted to an extended state so as to divide the air supply port 12 into two sections, and each air duct 20 supplies air to the outside through the corresponding section, so that the air supply of the two air ducts 20 and the air supply of the middle air supply part 70 are less influenced by each other, and air supply can be performed relatively independently. As shown in fig. 3, only the intermediate air blowing unit 70 may blow air, and the two air ducts 20 may not blow air. When the indoor environment has no cooling/heating requirement but fresh air or purification requirement, only the middle air supply part 70 may be turned on. This, of course, requires that the intermediate blower 70 be independently matched to the fan to facilitate the outflow of the air flow therein.

For example, as shown in fig. 4, the middle air supply part 70 may be adjusted to a retracted state, so that the output airflow and the outlet airflows of the two air ducts 20 are both blown to the air supply opening 12 and are converged at the air supply opening 12, and a pressure difference is formed at the air supply opening 12 when the two air ducts 20 supply air, so as to drive the outflow of the airflow in the middle air supply part 70, so that the middle air supply part 70 does not need to frequently turn on a fan, and even omits the fan. Moreover, each air flow is mixed in advance at the air supply outlet 12, so that the mixing effect of the non-heat-exchange air flow and the heat-exchange air flow is better. Especially, when the middle air supply part 70 blows out fresh air, the fresh air and the heat exchange air flow are mixed in advance, so that the indoor refreshing speed is higher.

In some embodiments, as shown in fig. 1 to 4, the indoor unit of an air conditioner further includes two fans 80, and each fan 80 is disposed in one air duct 20. The blower 80 is used to promote the airflow in the casing 10 to flow into the duct 20 and then blow the airflow to the indoor environment through the supply outlet 12. It will be appreciated that the operation of the two blowers 80 is also independently controlled, and that it is possible to choose to turn on only one blower 80, or to turn on both blowers 80 simultaneously. The speed of each fan 80 is also independently controlled. The power rating of each fan 80 may be the same or different. In alternative embodiments, two air ducts 20 may share a single fan.

FIG. 5 is a schematic view of the middle blowing unit 70 in an extended state without blowing; fig. 6 is a schematic view of the air conditioning indoor unit shown in fig. 5, in which the left air guide device 61 guides air to the left and the right air guide device 62 guides air to the right; fig. 7 is a schematic view of the intermediate blowing unit 70 in a retracted state without blowing air.

In some embodiments of the present invention, as shown in fig. 5 to fig. 7, when the indoor environment only needs cooling/heating, the intermediate air supply unit 70 can stop air supply, so that the indoor unit of the air conditioner can still use the air duct 20 to normally blow out heat exchange airflow.

In some embodiments, as shown in fig. 1-4, each duct 20 is defined by a first duct wall 21 (i.e., a volute) and a second duct wall 22 (i.e., a volute tongue) that are spaced apart. The two second air duct walls 22 are adjacent to each other and between the two first air duct walls 21. Each second air duct wall 22 includes a main body section 221 and an adjusting section 222 (two rotation axes are x1 and x2) which are rotatably connected in sequence along the airflow direction, so that when the intermediate air blowing part 70 is in different states, the two adjusting sections 222 are rotated to different angles, and the tail ends (C, D) of the two adjusting sections abut against the surface of the intermediate air blowing part 70. In this embodiment, the adjusting sections 222 of the two second air duct walls 22 can rotate, so that the ends of the two adjusting sections 222 are always attached to the middle air supply part 70 to form a seal, thereby preventing the air flow of the air duct 20 from flowing into the space between the two second air duct walls 22 and causing waste.

Further, referring to fig. 2 and 4, the middle air supply part 70 is a hollow structure, and the outer surface thereof includes an air outlet surface 701 facing the air supply opening 12 to output air flow, and two side surfaces 702 extending from two sides of the air outlet surface 701 and bending in a direction away from the air supply opening 12. The air outlet face 701 may be provided with an air outlet 71. When the middle air supply part 70 is in the retracted state, the ends (C, D) of the two adjusting sections 222 respectively abut against the two lateral sides (a, b) of the air outlet surface 701, so that the air outlet surface 701 forms a connecting surface of the ends of the two adjusting sections 222, and leakage between the two adjusting sections is avoided. When the middle blowing part 70 is in the extended state, the ends of the two regulating segments 222 abut against the two side surfaces 702, respectively, as shown in fig. 2. Specifically, the ends of the two adjusting segments 222 can abut against the ends (c, d) of the two side surfaces 702, respectively. This allows the two sides 702 to act as extensions of the two adjustment segments 222, so that the two sides 702 also form the inner walls of the two air ducts 20 for guiding the air flow, and the design is very ingenious. The included angle between each side 702 and the air outlet surface 701 is an obtuse angle, so that the distance between the two sides 702 is gradually increased from inside to outside, and the outlets of the two air ducts 20 are larger. Further, the middle blower 70 includes a rear surface 703(cd section) having both lateral sides connected to the rear of the side surfaces 702.

In some embodiments, as shown in fig. 1 to 4, the distance between the two air ducts 20 gradually increases and then gradually decreases from the upstream to the downstream of the air ducts 20 to the same air outlet 12. In this way, on the one hand, the width of the casing 10 can be utilized more efficiently, and a high efficiency volute shape required for the air duct 20 can be formed. On the other hand, the outlet airflow of each air duct 20 is also deflected towards the other air duct 20 (the outlet airflow of the left air duct 20 is deflected towards the right, and the outlet airflow of the right air duct 20 is deflected towards the left), so that the two air flows can impact each other at the air supply opening 12, and the interaction promotion effect of the outlet airflows of the two air ducts 20 is stronger.

Specifically, in the direction from the upstream to the downstream of the duct 20, the distance between the two second duct walls 22 gradually increases and then gradually decreases, and the two first duct walls 21 are both curved and the concave sides thereof face each other. Thus, a volute shape with high efficiency is formed, and the distance between the two air ducts 20 is gradually increased and then gradually decreased in the direction from the upstream to the downstream of the air ducts 20.

In addition, the air conditioning indoor unit further includes two

air guiding devices

61 and 62. Two

air guiding devices

61, 62 are arranged at the air supply opening 12 for guiding the wind direction, each air guiding device is independently controlled and corresponds to the outlet of one air duct 20. That is, the air guiding directions of the

air guiding devices

61 and 62 are not mutually affected, and the air flow in the covered area can be independently guided. Because a plurality of independently controlled

air guide devices

61 and 62 are arranged, the

air guide devices

61 and 62 can guide air in a plurality of directions to enlarge the whole air supply range, and the

air guide devices

61 and 62 can guide air in the same direction, so that a plurality of air flows are converged and promoted, the wind power is stronger, and a certain indoor area can be blown with pertinence.

As described above, fig. 1 to 7 illustrate an embodiment of the floor type air conditioning indoor unit, and fig. 1 to 7 illustrate cross-sectional views taken by cutting the air conditioning indoor unit in a horizontal plane.

In the vertical air conditioning indoor unit of the embodiment, the casing 10 is a column extending vertically, and preferably, the air blowing port 12 is opened forward, the two air ducts 20 are arranged side by side in the lateral direction of the casing 10, and the intermediate air blowing part 70 is a vertical bar. The air duct 20 and the air supply port 12 may be formed in a long shape extending in the vertical direction. The fan 80 is preferably a crossflow fan with its axis extending vertically. In alternative embodiments, the shape of the air supply opening 12 may be other shapes, and accordingly, the fan 80 may be other types of fans such as an axial flow fan, a centrifugal fan, and the like. The air duct 20, the shape of the air supply opening, and the fan pattern are not particularly limited in the present invention.

The wind direction of the whole air supply opening 12 can be the same, so that the two air flows (or the air outlet flow of the middle air supply part 70 is also included) blown out from the two air ducts 20 can be converged and mutually promoted, the wind power is stronger, and a certain area in the room can be purposefully blown, and as shown in fig. 2, 4, 5 and 7, the two

wind guiding devices

61 and 62 can be both used for guiding wind forwards. Of course, the air can be guided towards the left or towards the right.

Alternatively, the air guide directions of the two

air guide devices

61 and 62 may be different, and the entire air blowing range may be expanded. For example, as shown in fig. 6, the left air guide device 61 may guide air to the left, and the right air guide device 62 may guide air to the right. Furthermore, it is possible to make the air guides 61, 62 to shield the outlet of the air ducts 20, for example in fig. 3, in order to selectively close one or both air ducts 20, while the respective fan 80 is switched off.

Of course, the air supply modes of the air conditioning indoor unit of the present invention are described as examples only in fig. 1 to 7, but are not exhaustive, and there are many other air supply modes of the air conditioning indoor unit of the present invention, which are not listed here.

In some embodiments, as shown in fig. 1 to 7, each

air guiding device

61, 62 includes a plurality of swinging blades, and each swinging blade of each

air guiding device

61, 62 is configured to synchronously and rotatably adjust the lateral air outlet direction of the air outlet 12. Specifically, each swing blade is in a strip plate shape extending along the vertical direction, the rotation axis of each swing blade is parallel to the vertical direction, linkage can be realized among a plurality of swing blades through a linkage mechanism, and synchronous rotation is realized under the driving of a motor. Such a linkage mechanism with a plurality of swing vanes is widely used in the air conditioning field and will not be described in detail here. When the plurality of swing vanes rotate to the coplanar state, they can shield the air supply opening 12. In some alternative embodiments, the

wind guiding devices

61 and 62 may be a single rotatable strip-shaped wind guiding plate extending vertically, and will not be described in detail.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims

1. An air conditioning indoor unit, characterized by comprising:

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

each air channel is defined by a first air channel wall and a second air channel wall which are arranged at intervals;

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

the middle air supply part is of a hollow structure, and the outer surface of the middle air supply part comprises an air outlet surface facing the air supply outlet and used for outputting airflow and two side surfaces bent and extended from two sides of the air outlet surface in a direction deviating from the air supply outlet;

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

and the included angle between each side surface and the air outlet surface is an obtuse angle.

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

in the direction from the upstream to the downstream of the air ducts, the distance between the two air ducts is gradually increased and then gradually decreased.

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

in the direction from the upstream to the downstream of the air duct, the distance between the two second air duct walls is gradually increased and then gradually decreased, the two first air duct walls are both in a bent shape, and the concave sides of the two first air duct walls are opposite.

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

and each fan is arranged in one air duct.

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

and the two air guide devices are arranged at the air supply port and used for guiding the wind direction, and each air guide device is independently controlled and corresponds to one outlet of the air duct.

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

the casing is in a vertically extending columnar shape, the air supply outlet is opened forwards, and the two air channels are arranged side by side along the transverse direction of the casing; and is

The middle air supply part is in a vertical bar shape.

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

the output airflow of the middle air supply part is fresh air flow.