WO2023065680A1

WO2023065680A1 - Air-conditioner indoor unit

Info

Publication number: WO2023065680A1
Application number: PCT/CN2022/096887
Authority: WO
Inventors: 李伟; 张振富; 郝红波; 李绪超
Original assignee: 青岛海尔空调器有限总公司; 青岛海尔空调电子有限公司; 海尔智家股份有限公司
Priority date: 2021-10-20
Filing date: 2022-06-02
Publication date: 2023-04-27
Also published as: CN113899017A

Abstract

An air-conditioner indoor unit, comprising an elongated casing (10), which horizontally extends in a transverse direction, wherein the casing (10) is provided with a heat-exchange air inlet (11), which is used for sucking in indoor air, and a heat-exchange air outlet (12), which is used for discharging a heat-exchange airflow; and the casing (10) is further provided with a plurality of fresh air outlets (13, 14, 15). The air-conditioner indoor unit is configured to introduce an outdoor fresh airflow, and discharge the fresh airflow to an indoor environment through one or more of the fresh air outlets (13, 14, 15); and the plurality of fresh air outlets (13, 14, 15) comprise a lower fresh air outlet (15), which is provided in the bottom face of the casing, so as to allow the fresh airflow to be blown out in a downwards manner. Therefore, the air force of fresh air of the air-conditioner indoor unit is enhanced.

Description

air conditioner indoor unit

technical field

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

Background technique

Some existing air conditioners have a fresh air function. That is, the pipeline is used to introduce outdoor fresh air into the air conditioner indoor unit, and then the fresh air is blown to the room under the action of the fan, so that the indoor air is kept fresh and comfortable, and the user's comfort experience is improved.

However, in the existing related schemes, the original heat exchange fan of the indoor unit of the air conditioner is mostly used to promote the flow of fresh air, and the heat exchange fan is more used to blow the heat exchange air flow, so that the wind force and air volume of the fresh air flow are insufficient. There are also some plans to set up a dedicated fresh air fan to blow fresh air. However, due to the thinner and thinner air conditioner indoor units, the layout of the fresh air fan is very limited, and it is difficult to arrange a larger fresh air fan to obtain a larger air volume.

Contents of the invention

The purpose of the present invention is to overcome at least one technical defect in the prior art, and provide an air-conditioning indoor unit that overcomes the above-mentioned problems or at least partially solves the above-mentioned problems, so as to enhance the fresh air force of the air-conditioning indoor unit.

A further object of the present invention is to optimize the azimuth layout of the fresh air outlets and accelerate the diffusion speed of the fresh air.

In one aspect, the present invention provides an air-conditioning indoor unit, which includes a strip-shaped casing extending horizontally and horizontally, and the casing is provided with a heat exchange air inlet for sucking indoor air and a heat exchange air outlet for discharging heat exchange air. hot air outlets; and

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

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

Optionally, 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 outlet, and is closer to the lateral end surface of the casing than the heat exchange outlet.

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

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

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

Optionally, the front fresh air outlet is arranged at an upper corner adjacent to the lateral end surface of the casing.

Optionally, the front fresh air outlet is formed by arranging and combining multiple holes.

Optionally, the indoor unit of the air conditioner also includes a fresh air fan, which is used to promote the flow of fresh air, and is installed inside the casing. A plurality of fresh air outlets for discharging the fresh air flow, each of the fresh air outlets is connected to one of the fresh air outlets.

Optionally, the shell includes a volute and a purification shell, both of which are flat in thickness direction parallel to the length direction of the casing, and the two are close to each other and communicate with each other in the internal space;

The 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 inhaled from the fresh air inlet passes through the purification module and then flows to the impeller.

Optionally, a socket is provided on the peripheral front of the purification case to allow the purification module to be inserted into the purification case through the socket.

In the air conditioner indoor unit of the present invention, a plurality of fresh air outlets are provided on the casing, and the plurality of fresh air outlets can discharge air at the same time, so that the fresh air flow out of the casing is smoother and the wind force is stronger, so that the fresh air of the air conditioner indoor unit Larger air volume speeds up the renewal of indoor air. Moreover, the increase in the number of fresh air outlets also reduces the wind outlet resistance of each fresh air outlet. Due to the arrangement of multiple fresh air outlets, each fresh air outlet can be designed to be smaller, so that it is concentrated on the lateral side of the casing to reduce its impact on the heat exchange air inlet, heat exchange air outlet, evaporator, and heat exchange air outlet. The influence of the normal layout of the fan. Correspondingly, the fresh air fan also has multiple fresh air outlets. Under the same air volume, the increase of the fresh air outlet will also reduce the speed of the fresh air fan, so that its power consumption and noise will be lower. Moreover, the present invention particularly sets the fresh air outlet on the bottom surface of the casing so as to blow the fresh air downward, so that the fresh air can reach the indoor bottom space faster, which is beneficial to speed up the air renewal speed of the indoor bottom space.

Further, the air-conditioning indoor unit of the present invention also includes an upper fresh air outlet, or a front fresh air outlet. By setting fresh air outlets on different surfaces of the casing, the fresh air can be blown in different directions, so that different areas can be treated at the same time. The airflow is updated to speed up the indoor air update speed, so that users can fully feel the existence of fresh air.

Further, in the indoor unit of the air conditioner of the present invention, a special fresh air fan is used to deliver the fresh air flow, so that the fresh air function is more independent. When the indoor only needs to update the air without cooling/heating, the fresh air fan only needs to be turned on, and there is no need to turn on the compressor and Heat exchange fan reduces energy consumption. The shell of the fresh air fan includes a volute and a purification case. The impeller is arranged in the volute, and the purification module is arranged in the purification case, so that the fresh air flow is first purified by the purification module, then flows to the impeller, and then is blown out of the volute by the impeller, so that the fresh air flow cleaner. Moreover, the present invention further makes the volute and the purification case flat, arranges a plurality of fresh air outlets at different positions in the circumferential direction of the volute, and sets the fresh air inlets on the peripheral surface of the purification case, making the layout more reasonable and compact, making the whole Fresh air fans take up less space.

Those skilled in the art will be more aware of the above and other objects, advantages and features of the present invention according to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings.

Description of drawings

Hereinafter, some specific embodiments of the present invention will be described in detail by way of illustration and not limitation with reference to the accompanying drawings. The same reference numerals in the drawings designate the same or similar parts or parts. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the attached picture:

Fig. 1 is a schematic structural view of an air conditioner indoor unit according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of another angle of the air conditioner indoor unit shown in Fig. 1;

Fig. 3 is a structural schematic diagram of a fresh air blower according to an embodiment of the present invention;

Fig. 4 is a schematic exploded view of the fresh air fan shown in Fig. 3;

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

Fig. 6 is a schematic diagram of another angle of the air conditioner indoor unit shown in Fig. 5;

Fig. 7 is a schematic structural diagram of a fresh air blower according to an embodiment of the present invention;

Fig. 8 is a schematic exploded view of the fresh air fan shown in Fig. 7 .

Detailed ways

Reference will now be made in detail to embodiments of the invention, one or more examples of which are illustrated in the accompanying drawings. Each example is provided by way of explanation of the invention, not limitation of the invention. In fact, it will be apparent to those skilled in the art that various modifications and variations can be made in this invention without departing from the scope or spirit of this invention. For example, features illustrated or described as part of one embodiment can be used with another embodiment to yield still a further embodiment. Thus, it is intended that the present invention covers such modifications and changes as come within the scope of the appended claims and their equivalents.

The air conditioner indoor unit according to the embodiment of the present invention will be described below with reference to FIG. 1 to FIG. 8 . In the description of this embodiment, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and cannot be interpreted as indicating or implying relative importance or implicitly indicating the number of indicated technical features . Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined. When a feature "comprises or comprises" one or some of the features it encompasses, unless specifically stated otherwise, this indicates that other features are not excluded and that other features may be further included.

Unless otherwise expressly specified and limited, terms such as "mounted", "connected", "connected", "fixed" and "coupled" should be interpreted in a broad sense, for example, it may be a fixed connection or a detachable connection, or Integrate; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediary, can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined . Those of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present invention according to specific situations.

In addition, in the description of this embodiment, the first feature being "on" or "under" the second feature may include that the first and second features are in direct contact, and may also include that the first and second features are not in direct contact but is through additional feature contacts between them. That is to say, in the description of this embodiment, the first feature being "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply indicating the level of the first feature The height is higher than the second feature. "Below", "beneath" or "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

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

An embodiment of the present invention provides an air conditioner indoor unit. The air conditioner indoor unit is used to adjust indoor air, such as cooling, heating, dehumidification, introducing fresh air, and so on. The fresh air flow is introduced from the external environment by the indoor unit of the air conditioner and blows into the indoor environment to complete the renewal of the indoor ambient air, keeping the indoor ambient air fresh and beneficial to human health.

Fig. 1 is a schematic structural diagram of an air-conditioning indoor unit according to an embodiment of the present invention; Fig. 2 is a schematic diagram of another angle of the air-conditioning indoor unit shown in Fig. 1; Fig. 3 is a schematic structural diagram of a fresh air fan according to an embodiment of the present invention; Fig. 4 is a schematic exploded view of the fresh air fan shown in Fig. 3 .

As shown in FIG. 1 and FIG. 2 , the air conditioner indoor unit according to the embodiment of the present invention is wall-mounted, and generally includes a casing 10 . The casing 10 is in the shape of a strip extending horizontally and horizontally, and is hung on the indoor wall. In the figure, the direction of the x-axis indicates the length direction of the casing 10 . The length direction of the casing 10 is the horizontal direction. The casing 10 defines an accommodating space for accommodating various components of the air conditioner indoor unit, including an evaporator, a heat exchange fan, and the like. 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.

The air-conditioning indoor unit may be an indoor part of a split-type room air conditioner that utilizes a vapor compression refrigeration cycle system for cooling/heating. The air conditioner indoor unit is provided with an evaporator and a heat exchange fan. The evaporator and throttling device are connected with the compressor, condenser and other refrigerating components arranged in the outdoor housing of the air conditioner through pipelines to form a vapor compression refrigeration cycle system. Under the action of the heat exchange fan, the indoor air enters the casing of the indoor unit of the air conditioner, and after completing forced convection heat exchange with the evaporator, heat exchange air is formed, and then blows to the heat exchange air outlet 12 of the casing, and finally blows to the room Environment, to complete the conditioning process of indoor ambient air.

Also offer a plurality of fresh air air outlets on the casing 10 . The number of fresh air outlets can be two, three, four or more. For example, in the embodiments shown in FIGS. 1 to 4 , there are three fresh air outlets, namely the upper fresh air outlet 13 , the front fresh air outlet 14 and the lower fresh air outlet 15 . The air conditioner indoor unit is configured to introduce outdoor fresh air, and discharge the fresh air to the indoor environment through one or more fresh air outlets. That is, the indoor unit of the air conditioner can choose to enable some fresh air outlets and disable some fresh air outlets according to the indoor fresh air demand. Moreover, the aforesaid multiple fresh air outlets include the lower fresh air outlet 15 provided on the bottom surface of the casing 10 to allow the fresh air flow to blow downwards, so that the fresh air flow can be blown downwards at an angle that is vertically downward or close to vertically downward. .

In the air conditioner indoor unit of the embodiment of the present invention, a plurality of fresh air outlets are provided on the casing 10, and the plurality of fresh air outlets can discharge air at the same time, so that the fresh air flow out of the casing 10 is smoother and the wind is stronger, making the air conditioner The fresh air volume of the indoor unit is larger, which speeds up the renewal of indoor air. Moreover, the increase in the number of fresh air outlets also reduces the wind outlet resistance of each fresh air outlet. Since a plurality of fresh air outlets are provided, each fresh air outlet can be designed to be smaller, so that it is concentrated on one lateral side of the casing 10, so as to reduce its impact on the heat exchange air inlet, heat exchange air outlet, evaporator, heat exchanger, etc. The influence of the normal layout of the hot air blower.

Moreover, the embodiment of the present invention particularly sets the fresh air outlet 15 on the bottom surface of the casing 10 so as to blow the fresh air flow downward, so that the fresh air flow can reach the indoor bottom space faster, and accelerate the air renewal speed of the indoor bottom space.

In some embodiments, as shown in FIG. 2 , the heat exchange air outlet 12 can be opened at the front bottom of the casing 10 . The lower fresh air outlet 15 is located obliquely behind the heat exchange outlet 12 , and is closer to the lateral end surface of the casing 10 than the heat exchange 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 outlet 12 so as not to interfere with the heat exchange outlet 12 .

In some embodiments, as shown in FIG. 1 and FIG. 2 , the aforementioned multiple fresh air outlets further include an upper fresh air outlet 13 opened on the top surface of the cabinet 10 . The upper fresh air outlet 13 is disposed near the lateral end surface of the casing 10 . The heat exchange air inlet 11 can be arranged on the top surface of the casing 10, so that the upper fresh air outlet 13 is located on the lateral side of the heat exchange air inlet 11, as shown on the left side of the figure, to reduce its impact on the heat exchange air inlet 11, exchange air The impact of the normal layout of the hot air outlet 12, evaporator, and heat exchange fan.

As shown in FIG. 1 and FIG. 2 , the aforementioned plurality of fresh air outlets may also include a front fresh air outlet 14 opened on the front (front panel) of the casing 10 . The front fresh air outlet 14 can be arranged at the upper corner position near the lateral end surface of the casing 10, so that its height is higher, and after the fresh air flow flows out, the air supply distance is farther. The front fresh air outlet 14 can be formed by arranging and combining a plurality of holes, so as to make the casing 10 more beautiful, and avoid opening a larger opening to affect the appearance of the casing 10 .

The air-conditioning indoor unit of the embodiment of the present invention also includes an upper fresh air outlet 13, or a front fresh air outlet 14. By setting fresh air outlets on different surfaces of the casing 10, the fresh air is blown in different directions to simultaneously The airflow in different areas is updated to speed up the indoor air update speed, so that users can fully feel the existence of fresh air.

As shown in FIG. 3 and FIG. 4 , the air conditioner indoor unit also includes a fresh air blower 20 . The fresh air blower 20 is installed inside the casing 10 for promoting the flow of fresh air. The fresh air blower 20 includes a housing 100 . The housing 100 is provided with a fresh air inlet 110 for sucking fresh air and a plurality of fresh air outlets for discharging fresh air. The fresh air inlet 110 can be connected to the outdoor environment through pipelines to introduce fresh air. Each fresh air outlet is connected to a fresh air outlet. Specifically, the upwardly open fresh air outlet 123 is set to be opposite to the upper fresh air outlet 13, the forwardly open fresh air outlet 124 is set to be opposite to the front fresh air outlet 14, and the downwardly open fresh air outlet 125 is arranged to be opposite to the lower fresh air outlet 15. . Because a plurality of fresh air outlets output air simultaneously, the air output of the fresh air blower 20 is smoother and the wind force is stronger. Moreover, increasing the number of fresh air outlets will also reduce the wind resistance of each fresh air outlet. Under the same air volume, increasing the fresh air outlet will also reduce the rotating speed of the fresh air fan 20, so that its power consumption and noise are lower.

As shown in FIG. 3 and FIG. 4 , the casing 100 includes a volute 101 and a purification casing 102 , both of which are flat in thickness direction parallel to the length direction of the casing 10 , and the two are adjacent to each other and communicate with each other in the internal space. The volute 101 and the purification case 102 are connected and fastened by screws.

The impeller (not shown) of the fresh air blower 20 is arranged in the volute 101 . The aforementioned plurality of fresh air outlets are opened on the volute 101 . The purification shell 102 is provided with the aforementioned fresh air inlet 110, and a purification module 200 is arranged inside the purification shell 102, so that the fresh air inhaled from the fresh air inlet 110 flows through the purification module 200, is purified by it, and then flows to the impeller. The purification module 200 can be a filter module to filter out harmful impurities in the fresh air flow. The purification module 200 may also have other processing functions to further process the fresh air flow to make it fresher and healthier. The volute 101 can be closer to the first end of the length direction of the casing 10 than the purification casing 102 (that is, the volute 101 is located on the left side of the purification casing 102), so that the fresh air outlet is arranged closer to the first end of the casing 10. One end, so that it does not affect the layout of the heat exchange air inlet 11, the heat exchange air outlet 12, the evaporator and the heat exchange fan.

The impeller may be a centrifugal impeller, and the end of the volute 101 in the thickness direction (x-axis direction) facing the purification case 102 is provided with a suction port (not shown). The side of the purification case 102 facing the volute 101 is open, so that the cover is buckled on the volute 101 , the edges are sealed and connected, and the internal space is communicated. The purification module 200 is covered by the purification case 102 . Under the rotation of the impeller, the fresh air flow enters the purification case 102 from the fresh air inlet 110 of the purification case 102 , flows through the purification module 200 to be purified by it, and then enters the volute 101 from the suction port. Under the action of the impeller, the purified airflow is thrown out along the radial direction of the impeller, and then discharged out of the volute 101 through the

fresh air outlets

123 , 124 , 125 . Certainly, the impeller may also be an axial flow impeller or other types of impellers, and its specific structure will not be repeated here. On the basis of understanding various embodiments of the present disclosure, those skilled in the art should easily know the structure and installation position of the impeller, which are not marked in the drawings.

In some embodiments, as shown in FIG. 3 and FIG. 4 , a socket 140 is opened on the peripheral front of the purification case 102 to allow the purification module 200 to be inserted into the purification case 102 through the socket 140 . In this way, the user can easily clean and replace the purification module 200 by disassembling the front panel of the casing 10 , which is very convenient to use.

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

In the embodiment shown in FIGS. 1 to 4 , the casing 10 is provided with three fresh air outlets, which are respectively the upper fresh air outlet 13 , the front fresh air outlet 14 and the lower fresh air outlet 15 , and the fresh air fan 20 is correspondingly provided with three fresh air outlets.

Exit

123, 124, 125.

In contrast, in the embodiments of FIGS. 5 to 8 , the casing 10 is provided with two fresh air outlets, namely the upper fresh air outlet 13 and the lower fresh air outlet 15, and the fresh air fan 20 is correspondingly provided with two fresh air outlets 123. , 125.

So far, those skilled in the art should appreciate that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, without departing from the spirit and scope of the present invention, the disclosed embodiments of the present invention can still be used. Many other variations or modifications consistent with the principles of the invention are directly identified or derived from the content. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims

An air conditioner indoor unit, which includes a strip-shaped casing extending horizontally and horizontally, wherein,

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

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

The plurality of fresh air outlets include a lower fresh air outlet opened on the bottom surface of the casing to allow the fresh air to blow out downwards.
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 outlet, and is closer to the lateral end surface of the casing than the heat exchange outlet.
The air conditioner indoor unit according to claim 1 or 2, wherein,

The plurality of fresh air outlets include an upper fresh air outlet opened on the top surface of the casing.
The air conditioner indoor unit according to claim 3, wherein,

The upper fresh air outlet is arranged at a position close to the lateral end surface of the casing.
The air conditioner indoor unit according to any one of claims 1-4, wherein,

The multiple fresh air outlets include a front fresh air outlet opened in front of the casing.
The air conditioner indoor unit according to claim 5, wherein,

The front fresh air outlet is arranged near the upper corner of the lateral end surface of the casing.
The air conditioner indoor unit according to claim 5 or 6, wherein,

The front fresh air outlet is formed by arranging and combining a plurality of holes.
The air conditioner indoor unit according to any one of claims 1-7, further comprising:

The fresh air fan is used to promote the flow of fresh air, and it is installed inside the casing. The fresh air fan includes a shell, and the shell 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.
The air conditioner indoor unit according to claim 8, wherein:

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

The 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 inhaled from the fresh air inlet passes through the purification module and then flows to the impeller.
The air conditioner indoor unit according to claim 9, wherein:

A socket is provided on the peripheral front of the purification case to allow the purification module to be inserted into the purification case through the socket.