CN113899017A

CN113899017A - Indoor unit of air conditioner

Info

Publication number: CN113899017A
Application number: CN202111223344.5A
Authority: CN
Inventors: 李伟; 张振富; 郝红波; 李绪超
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: 2021-10-20
Filing date: 2021-10-20
Publication date: 2022-01-07
Also published as: WO2023065680A1

Abstract

The present invention provides an air conditioner indoor unit, which comprises a horizontal and transversely extending elongated casing, and the casing is provided with a heat exchange air inlet for inhaling indoor air and a heat exchange air outlet for discharging heat exchange airflow; and The casing is also provided with a plurality of fresh air outlets, and the indoor unit of the air conditioner is configured to introduce outdoor fresh air and discharge the fresh air to the indoor environment through one or more fresh air outlets; and the plurality of fresh air outlets include openings on the bottom surface of the casing. The lower fresh air outlet to allow the fresh air to blow down. The present invention strengthens the fresh air power of the air conditioner indoor unit.

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

Some existing air conditioners have a fresh air function. Namely, the outdoor fresh air is introduced into the indoor unit of the air conditioner by utilizing the pipeline, and then the fresh air flow is blown to the indoor space under the action of the fan, so that the indoor air is kept fresh and comfortable, and the comfortable experience of a user is improved.

However, in the existing related schemes, the flow of the fresh air is promoted mostly by means of the original heat exchange fan of the indoor unit of the air conditioner, and the heat exchange fan is more used for blowing the heat exchange airflow, so that the wind power and the air volume of the fresh air airflow are insufficient. Some other schemes additionally arrange special fresh air fans to blow fresh air, but due to the light and thin requirements of the indoor unit of the air conditioner, the layout of the fresh air fans is very limited, and the arrangement of a large fresh air fan is difficult to obtain large air volume.

Disclosure of Invention

The object of the present invention is to provide an air-conditioning indoor unit that overcomes or at least partially solves the above-mentioned problems, in order to enhance the fresh air force of the air-conditioning indoor unit.

The invention further aims to optimize the azimuth layout of the fresh air outlet and accelerate the diffusion speed of fresh air.

On one hand, the invention provides an indoor unit of an air conditioner, which comprises a long-strip-shaped shell horizontally and transversely extending, wherein the shell is provided with a heat exchange air inlet for sucking indoor air and a heat exchange air outlet for discharging heat exchange air flow; and is

The shell is also provided with a plurality of fresh air outlets, and the indoor unit of the air conditioner is configured to introduce outdoor fresh air flow and discharge the fresh air flow to the indoor environment through one or more fresh air outlets; and is

The plurality of fresh air outlets comprise lower fresh air outlets arranged on the bottom surface of the machine shell so as to allow fresh air to flow downwards.

Optionally, the heat exchange air outlet is formed in the bottom of the front side of the casing; and is

The lower fresh air outlet is located on the oblique rear side of the heat exchange air outlet and is closer to the transverse end face of the shell than the heat exchange air outlet.

Optionally, the plurality of fresh air outlets include an upper fresh air outlet disposed on the top surface of the housing.

Optionally, the upper fresh air outlet is arranged at a position close to the transverse end face of the casing.

Optionally, the plurality of fresh air outlets include a front fresh air outlet arranged in front of the casing.

Optionally, the front fresh air outlet is arranged at an upper corner position close to the transverse end face of the machine shell.

Optionally, the front fresh air outlet is formed by arranging and combining a plurality of holes.

Optionally, the machine in the air conditioning still includes the new trend fan for make the new trend air current flow, it installs inside the casing, the new trend fan includes the shell, the shell is offered and is used for inhaling new trend import of new trend air current and is used for discharging a plurality of new trend exports of new trend air current, every new trend exit linkage is one the new trend air outlet.

Optionally, the housing comprises a volute and a purification shell, both of which are flat with the thickness direction parallel to the length direction of the casing, and the volute and the purification shell are connected in an abutting manner and the inner space of the shell is communicated;

the volute is internally provided with an impeller of the fresh air fan, and the fresh air outlets are arranged on the volute; and is

The purification shell is provided with the fresh air inlet, and a purification module is arranged in the purification shell, so that fresh air sucked from the fresh air inlet flows to the impeller after being purified by the purification module.

Optionally, a socket is opened at a front portion of the circumferential surface of the purification shell to allow the purification module to be inserted into the purification shell through the socket.

In the air-conditioning indoor unit, the casing is provided with the plurality of fresh air outlets, and the plurality of fresh air outlets can simultaneously discharge air, so that fresh air flow of the casing can be discharged more smoothly, the wind power is stronger, the fresh air volume of the air-conditioning indoor unit is larger, and the indoor air updating speed is accelerated. In addition, the air outlet resistance of each fresh air outlet is reduced due to the increase of the number of the fresh air outlets. Because a plurality of fresh air outlets are arranged, each fresh air outlet can be designed to be smaller, so that the fresh air outlets are concentrated on one transverse side of the shell, and the influence of the fresh air outlets on the normal layout of the heat exchange air inlet, the heat exchange air outlet, the evaporator and the heat exchange fan is reduced. Correspondingly, the new trend fan also has a plurality of new trend exports, and under equal amount of wind, the increase of new trend export will reduce the rotational speed of new trend fan yet to make its consumption and noise all can be lower. In addition, the bottom surface of the casing is particularly provided with the fresh air outlet so as to blow fresh air flow downwards, so that the fresh air flow can reach the indoor bottom space more quickly, and the air renewal speed of the indoor bottom space is increased.

Furthermore, the indoor unit of the air conditioner further comprises an upper fresh air outlet or a front fresh air outlet, and fresh air flow is blown out in different directions by arranging the fresh air outlets on different surfaces of the shell, so that air flow in different areas can be updated simultaneously, the indoor air updating speed is increased, and a user can fully feel the existence of fresh air.

Furthermore, in the air-conditioning indoor unit, the special fresh air fan is used for conveying fresh air flow, so that the fresh air function is more independent, when the air is only needed to be updated indoors without refrigeration or heating, only the fresh air fan needs to be started, and a compressor and a heat exchange fan do not need to be started, so that the energy consumption is reduced. The shell of the fresh air fan comprises a volute and a purification shell, an impeller is arranged in the volute, and a purification module is arranged in the purification shell, so that fresh air flow is purified by the purification module firstly, then flows to the impeller, and then is blown out of the volute by the impeller, and the fresh air flow is cleaner. In addition, the volute and the purification shell are flat, the fresh air outlets are arranged at different positions of the volute in the circumferential direction, and the fresh air inlets are arranged on the circumferential surface of the purification shell, so that the layout is more reasonable and compact, and the whole fresh air fan occupies a smaller space.

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 a schematic structural view of an indoor unit of an air conditioner according to an embodiment of the present invention;

fig. 2 is another angle view of the indoor unit of the air conditioner shown in fig. 1;

FIG. 3 is a schematic structural diagram of a fresh air blower in one embodiment of the present invention;

FIG. 4 is a schematic exploded view of the fresh air blower of FIG. 3;

fig. 5 is a schematic structural view of an indoor unit of an air conditioner according to another embodiment of the present invention;

fig. 6 is another angle view of the indoor unit of the air conditioner shown in fig. 5;

FIG. 7 is a schematic structural diagram of a fresh air blower in an embodiment of the present invention;

fig. 8 is a schematic exploded view of the fresh air blower of fig. 7.

Detailed Description

An air conditioning indoor unit according to an embodiment of the present invention will be described with reference to fig. 1 to 8. In the description of the present embodiments, it is to be understood that the terms "first", "second" and "first" 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, a feature defined as "first" or "second" 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.

Further, in the description of the present embodiment, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature therebetween. That is, in the description of the present embodiment, the first feature being "on", "above" and "over" the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is higher in level than the second feature. A first feature "under," "beneath," or "beneath" a second feature may be directly under or obliquely under the first feature, or simply mean that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiments, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The embodiment of the invention provides an air conditioner indoor unit. The indoor unit of the air conditioner is used for conditioning indoor air, such as cooling, heating, dehumidifying, introducing fresh air, and the like. The fresh air flow is introduced from the external environment by the indoor unit of the air conditioner and blown to the indoor environment to update the indoor environment air, so that the air in the indoor environment is kept fresh, and the human health is facilitated.

Fig. 1 is a schematic structural view of an indoor unit of an air conditioner according to an embodiment of the present invention; fig. 2 is another angle view of the indoor unit of the air conditioner shown in fig. 1; FIG. 3 is a schematic structural diagram of a fresh air blower in one embodiment of the present invention; fig. 4 is a schematic exploded view of the fresh air blower of fig. 3.

As shown in fig. 1 and 2, an indoor unit of an air conditioner according to an embodiment of the present invention is a wall-mounted type, and may generally include a cabinet 10. The casing 10 is a horizontally and transversely extending strip shape, which is hung on an indoor wall, and the length direction of the casing 10 is shown in the x-axis direction in the figure. The cabinet 10 defines a receiving space for receiving various parts of the indoor unit of the air conditioner, including an evaporator, a heat exchange fan, etc. The casing 10 is provided with a heat exchange air inlet 11 for sucking indoor air and a heat exchange air outlet 12 for discharging heat exchange air flow.

The indoor unit of the air conditioner may be an indoor part of a split-type room air conditioner that performs cooling/heating using a vapor compression refrigeration cycle system. An evaporator and a heat exchange fan are arranged in the indoor unit of the air conditioner. The evaporator, the heat exchange fan and the throttling device are connected with a compressor, a condenser and other refrigeration elements arranged in an air-conditioning outdoor shell through pipelines to form a vapor compression refrigeration cycle system. Under the action of the heat exchange fan, indoor air enters the interior of the shell of the indoor unit of the air conditioner, forms heat exchange air after being subjected to forced convection heat exchange with the evaporator, then blows the heat exchange air to the heat exchange air outlet 12 of the shell, and finally blows the air to the indoor environment, so that the process of adjusting the indoor environment air is completed.

The casing 10 is further provided with a plurality of fresh air outlets. The number of the fresh air outlets can be two, three, four or more. For example, in the embodiments shown in fig. 1 to 4, the number of the fresh air outlets is three, which are respectively the upper fresh air outlet 13, the front fresh air outlet 14, and the lower fresh air outlet 15. The indoor unit of the air conditioner is configured to introduce outdoor fresh air flow and discharge the fresh air flow to the indoor environment through one or more fresh air outlets. Namely, the indoor unit of the air conditioner can selectively start part of the fresh air outlets and stop part of the fresh air outlets according to the indoor fresh air requirement. And, aforementioned a plurality of fresh air outlet are including seting up the lower fresh air outlet 15 in the casing 10 bottom surface to allow the fresh air current to blow off downwards, make the fresh air current blow off downwards with vertical downward or near vertical decurrent angle.

In the air-conditioning indoor unit of the embodiment of the invention, the casing 10 is provided with the plurality of fresh air outlets, and the plurality of fresh air outlets can simultaneously discharge air, so that fresh air flow of the casing 10 is discharged more smoothly, wind power is stronger, fresh air volume of the air-conditioning indoor unit is larger, and the indoor air updating speed is accelerated. In addition, the air outlet resistance of each fresh air outlet is reduced due to the increase of the number of the fresh air outlets. Because of the arrangement of the plurality of fresh air outlets, each fresh air outlet can be designed to be smaller, so that the fresh air outlets are concentrated on one transverse side of the casing 10, and the influence of the fresh air outlets on the normal layout of the heat exchange air inlet, the heat exchange air outlet, the evaporator and the heat exchange fan is reduced.

In addition, in the embodiment of the present invention, the lower fresh air outlet 15 is particularly disposed on the bottom surface of the casing 10, so as to blow the fresh air downward, so that the fresh air can reach the indoor bottom space more quickly, and the air renewal speed of the indoor bottom space is increased.

In some embodiments, as shown in fig. 2, the heat exchanging air outlet 12 may be opened at the bottom of the front side of the casing 10. The lower fresh air outlet 15 is located at the oblique rear of the heat exchange air outlet 12, and is closer to the transverse end face of the casing 10 than the heat exchange air outlet 12. Specifically, for example, in the embodiment shown in fig. 2, the lower fresh air outlet 15 is located at the left rear of the heat exchange air outlet 12, so as not to interfere with the heat exchange air outlet 12.

In some embodiments, as shown in fig. 1 and fig. 2, the fresh air outlets further include an upper fresh air outlet 13 disposed on the top surface of the casing 10. The upper fresh air outlet 13 is arranged at a position close to the transverse end face of the machine shell 10. The heat exchanging air inlet 11 may be disposed on the top surface of the casing 10, so that the upper fresh air outlet 13 is located on one lateral side of the heat exchanging air inlet 11, such as the left side of the figure, to reduce the influence of the heat exchanging air inlet 11, the heat exchanging air outlet 12, the evaporator, and the heat exchanging fan on the normal layout.

As shown in fig. 1 and fig. 2, the fresh air outlets may further include a front fresh air outlet 14 disposed in front of the casing 10 (front panel). The front fresh air outlet 14 can be arranged at the upper corner of the transverse end face close to the casing 10, so that the height of the front fresh air outlet is higher, and the air supply distance is farther after fresh air flows out. The front fresh air outlet 14 may be formed by arranging and combining a plurality of holes, so that the casing 10 is more beautiful, and the appearance of the casing 10 is prevented from being affected by a large opening.

The air-conditioning indoor unit of the embodiment of the invention further comprises an upper fresh air outlet 13 or a front fresh air outlet 14, and fresh air flow is blown out in different directions by arranging the fresh air outlets on different surfaces of the casing 10, so that air flow in different areas can be updated simultaneously, the indoor air updating speed is increased, and a user can fully feel the existence of fresh air.

As shown in fig. 3 and 4, the indoor unit of the air conditioner further includes a fresh air blower 20. The fresh air fan 20 is installed inside the casing 10 for promoting the flow of the fresh air flow. The fresh air blower 20 includes a housing 100. The housing 100 is provided with a fresh air inlet 110 for sucking in fresh air flow and a plurality of fresh air outlets for discharging fresh air flow. The fresh air inlet 110 may be ducted to the outdoor environment to introduce fresh air flow. And each fresh air outlet is connected with a fresh air outlet. Specifically, the upward open fresh air outlet 123 is arranged opposite to the upper fresh air outlet 13, the forward open fresh air outlet 124 is arranged opposite to the front fresh air outlet 14, and the downward open fresh air outlet 125 is arranged opposite to the lower fresh air outlet 15. Because a plurality of new trend exports the air-out simultaneously for new trend fan 20's air-out is more smooth and easy, and wind-force is stronger. Moreover, the quantity of the fresh air outlets is increased, and the air outlet resistance of each fresh air outlet is reduced. Under the same air quantity, the rotating speed of the fresh air fan 20 is reduced by increasing the fresh air outlet, so that the power consumption and the noise are lower.

As shown in fig. 3 and 4, the casing 100 includes a volute 101 and a purifying casing 102, both of which are flat in a thickness direction parallel to a length direction of the casing 10, and are abutted and communicated with each other in an inner space. The volute 101 and the purifying shell 102 are fastened by screws.

An impeller (not shown) of the fresh air fan 20 is provided in the scroll casing 101. The fresh air outlets are opened on the volute 101. The purifying shell 102 is provided with the fresh air inlet 110, and the purifying module 200 is disposed in the purifying shell 102, so that the fresh air sucked from the fresh air inlet 110 flows through the purifying module 200, is purified by the fresh air and then flows to the impeller. The purification module 200 may be a filtration module to filter out harmful impurities in the fresh air stream. The purification module 200 may also have other processing functions to further process the fresh air stream to make it more fresh and healthy. The volute 101 can be closer to the first end of the length direction of the casing 10 than the purifying casing 102 (i.e. the volute 101 is located on the left side of the purifying casing 102), so that the fresh air outlet is arranged closer to the first end of the casing 10, and the layout of the heat exchange air inlet 11, the heat exchange air outlet 12, the evaporator and the heat exchange fan is not affected.

The impeller may be a centrifugal impeller, and an air suction port (not shown) is provided at one end of the thickness direction (x-axis direction) of the scroll casing 101 facing the purge case 102. The side of the purification case 102 facing the scroll 101 is opened so as to cover the scroll 101, and the edges are sealed and connected, and the inner space is communicated. The decontamination module 200 is enclosed by the decontamination housing 102. Under the action of the rotation of the impeller, the fresh air flow enters the purification shell 102 from the fresh air inlet 110 of the purification shell 102, then flows through the purification module 200 to be purified, and then enters the volute 101 from the air suction port. Under the action of the impeller, the purified air flow is radially thrown out along the impeller and then discharged out of the volute 101 through the

fresh air outlets

123, 124 and 125. Of course, the impeller may be an axial-flow impeller or other type of impeller, and detailed description thereof is omitted here.

In some embodiments, as shown in fig. 3 and 4, the front portion of the perimeter of the purge shell 102 is provided with a socket 140 to allow the purge module 200 to be inserted into the purge shell 102 through the socket 140. Thus, the user can easily clean and replace the purification module 200 by detaching the front panel of the housing 10, which is very convenient.

Fig. 5 is a schematic structural view of an indoor unit of an air conditioner according to another embodiment of the present invention; fig. 6 is another angle view of the indoor unit of the air conditioner shown in fig. 5; FIG. 7 is a schematic structural diagram of a fresh air blower in an embodiment of the present invention; fig. 8 is a schematic exploded view of the fresh air blower of fig. 7.

In the embodiment shown in fig. 1 to 4, the casing 10 is provided with three fresh air outlets, namely an upper fresh air outlet 13, a front fresh air outlet 14 and a lower fresh air outlet 15, and the fresh air blower 20 is correspondingly provided with three

fresh air outlets

123, 124 and 125.

In contrast, in the embodiments shown in fig. 5 to 8, the casing 10 is provided with two fresh air outlets, namely, an upper fresh air outlet 13 and a lower fresh air outlet 15, and the fresh air blower 20 is correspondingly provided with two

fresh air outlets

123 and 125.

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 comprising a horizontally extending elongated casing, characterized in that,

The casing is provided with a heat exchange air inlet for inhaling indoor air and a heat exchange air outlet for discharging heat exchange airflow; and

The casing is further provided with a plurality of fresh air outlets, and the air conditioner indoor unit is configured to introduce outdoor fresh air flow and discharge the fresh air flow to the indoor environment through one or more of the fresh air outlets; and

The plurality of fresh air outlets include lower fresh air outlets opened on the bottom surface of the casing to allow the fresh air to blow out downward.

2. The air conditioner indoor unit according to claim 1, wherein

The heat exchange air outlet is opened at the bottom of the front side of the casing; and

The lower fresh air outlet is located obliquely behind the heat exchange air outlet, and is closer to the lateral end face of the casing than the heat exchange air outlet.

3. The air conditioner indoor unit according to claim 1, wherein

The plurality of fresh air outlets include an upper fresh air outlet opened on the top surface of the casing.

4. The air conditioner indoor unit according to claim 3, wherein

The upper fresh air outlet is arranged adjacent to the lateral end face of the casing.

5. The air conditioner indoor unit according to claim 1, wherein

The plurality of fresh air outlets include a front fresh air outlet opened in front of the casing.

6. The air conditioner indoor unit according to claim 5, wherein

The front fresh air outlet is arranged at an upper corner position adjacent to the lateral end face of the casing.

7. The air conditioner indoor unit according to claim 5, wherein

The front fresh air outlet is formed by arranging and combining a plurality of holes.

8. The air conditioner indoor unit according to claim 1, further comprising:

The fresh air fan is used to promote the flow of the fresh air, and it is installed inside the casing. The fresh air fan includes a casing, and the casing is provided with a fresh air inlet for inhaling the fresh air and a plurality of fresh air outlets for discharging the fresh air, Each of the fresh air outlets is connected to one of the fresh air outlets.

9. The air conditioner indoor unit according to claim 8, wherein

The casing includes a volute and a purification casing, both of which are flat in the thickness direction parallel to the length direction of the casing, and the two are in contact with each other and the internal space is communicated;

An impeller of the fresh air fan is arranged in the volute, and the plurality of fresh air outlets are opened on the volute; and

The purification shell is provided with the fresh air inlet, and a purification module is arranged therein, so that the fresh air flow sucked in from the fresh air inlet is purified by the purification module and then flows to the impeller.

10. The air conditioner indoor unit according to claim 9, wherein

A socket is opened on the front part of the peripheral front of the purification shell to allow the purification module to be inserted into the purification shell through the socket.