WO2019042327A1

WO2019042327A1 - Wall-mounted air-conditioning indoor unit

Info

Publication number: WO2019042327A1
Application number: PCT/CN2018/103015
Authority: WO
Inventors: 李英舒; 关婷婷; 王永涛
Original assignee: 青岛海尔空调器有限总公司
Priority date: 2017-08-31
Filing date: 2018-08-29
Publication date: 2019-03-07
Also published as: CN107726446A; CN107726446B

Abstract

A wall-mounted air-conditioning indoor unit is provided, comprising: a housing (100) having an air inlet (101) for taking in air from an indoor environment and an air outlet (102) for supplying air to the indoor environment; an evaporator (200) disposed inside the housing (100) for performing heat exchange with air flowing in from the air inlet (101) to form heat-exchanged air; a main air duct (401) disposed inside the housing (100) for guiding the heat-exchanged air to the air outlet (102); a fan (300) disposed inside the main air duct (401) and configured to cause air to flow from the air inlet (101) toward the air outlet (102); and at least one air-mixing duct (600) formed on the housing (100) and configured to allow the air of the indoor environment to flow through the air-mixing duct (600) to the main air duct (401) to be mixed with the heat-exchanged air, wherein an outlet of the air-mixing duct (600) is located on a lateral side of the air outlet (102). The wall-mounted air-conditioning indoor unit can enhance airflow comfort of wall-mounted air-conditioning indoor units, improve user airflow feel, and increase the volume of supplied air and the cooling/heating speed.

Description

Wall-mounted air conditioner indoor unit

Technical field

The invention relates to the technical field of air conditioning, and in particular to a wall-mounted air conditioner indoor unit.

Background technique

In the prior art, the air outlet of the air conditioner indoor unit is generally disposed at the bottom of the air conditioner housing. Due to the limited position, the air outlet is generally designed in the shape of a strip. Due to the narrow air supply range, the air outlet has a correspondingly small amount of air supply, which cannot meet the needs of users.

Further, in the prior art, when a general air conditioner indoor unit is in operation, cold air or hot air is directly blown out from the air outlet. When the airflow of the air conditioner is blown onto the human body, the temperature is very low or high, the user feels very uncomfortable, and it is easy to cause air conditioning disease.

Summary of the invention

In view of the above problems, the present invention has been made in order to provide a wall-mounted air conditioner indoor unit that overcomes the above problems or at least partially solves the above problems, improves air supply comfort, and improves the user's wind feeling experience.

A further object of the invention is to increase the amount of supply air and the rate of cooling/heating.

The invention provides a wall-mounted air conditioner indoor unit, which comprises:

a housing having an air inlet for introducing air from the indoor environment and an air outlet for supplying air to the indoor environment;

An evaporator disposed in the casing for heat exchange with the wind flowing in from the air inlet to form a heat exchange wind;

a main air duct disposed in the casing for guiding the heat exchange air to the air outlet;

a fan disposed in the main air duct and configured to cause air to flow from the air inlet to the air outlet; and

At least one mixed air duct formed in the casing, configured to allow the wind of the indoor environment to flow through the mixed air duct to the main air duct to mix with the heat exchange wind;

The outlet of the mixed air duct is located on the lateral side of the air outlet.

Optionally, the air outlet is an elongated opening extending in a lateral direction of the housing; and the number of the mixed air ducts is two, and the outlets of the two mixed air ducts are respectively disposed at lateral sides of the air outlet.

Optionally, the air outlet is opened at the bottom of the casing toward the front and the bottom; and the inlet of the mixed air duct is located at the bottom of the casing and is open downward so that the air of the indoor environment flows upward into the mixed air duct.

Optionally, the main air duct is composed of an upper wall, a lower wall, a left wall and a right wall, and the front edges of the upper wall, the lower wall, the left wall and the right wall enclose an air outlet; and the left wall separates the main air duct and is located at the left side On the side of the mixed air duct, the right wall separates the main air duct and the mixed air duct on the right side.

Optionally, the fan is a cross-flow fan that extends in the lateral direction of the housing with a central axis of rotation.

Optionally, the evaporator is a three-stage evaporator disposed above the cross-flow fan.

Optionally, the air outlet is provided with an air deflector that is rotatable about a lateral axis, and the air deflector is configured to be rotatable to a position that closes the air outlet and the outlets of the two mixed air ducts.

Optionally, the outlet of the mixed air duct is square.

Optionally, the two mixed air ducts have the same shape and are symmetrically disposed in the lateral direction of the housing.

In the wall-mounted air conditioner indoor unit of the present invention, a main air duct and a mixed air duct are disposed in the casing, and an outlet of the mixed air duct is adjacent to an air outlet of the main air duct, and an inlet of the mixed air duct communicates with the indoor environment space. When the air outlet of the main air duct blows out the heat exchange air, a negative pressure is formed on the side surface thereof, and the air at the air outlet of the mixed air duct is driven by the entrainment, so that the heat exchange air is mixed with the air of the indoor environment and then blown into the room. In this way, the cold air temperature in the cooling mode can be increased, and the hot air temperature in the heating mode can be lowered to make the wind softer and the human body feels more comfortable. At the same time, because the mixed-flow wind merges into the heat exchange wind, the air volume of the air outlet is also increased, and the cooling/heating speed is increased.

In addition, the present invention arranges the outlet of the mixed air duct on the lateral side of the air outlet to make it occupy a small space, so that the structure of the air conditioner indoor unit is more compact. Compared with some prior art solutions in which the mixed air duct is disposed under the air outlet, the present invention can save the height space of the air conditioner indoor unit by arranging the outlet of the mixed air duct on the lateral side of the air outlet. In addition to adding other components, the design is simple and easy to implement.

The above as well as other objects, advantages and features of the present invention will become apparent to those skilled in the <

DRAWINGS

Some specific embodiments of the present invention will be described in detail, by way of example, and not limitation, The same reference numbers in the drawings identify the same or similar parts. Those skilled in the art should understand that the drawings are not necessarily drawn to scale. In the figure:

1 is a schematic structural view of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention;

Figure 2 is a schematic rear view of the wall-mounted air conditioner indoor unit shown in Figure 1;

Figure 3 is a cross-sectional view of the wall-mounted air conditioner of Figure 1 taken along the line A-A;

Fig. 4 is a schematic exploded view of the wall-mounted air conditioner indoor unit shown in Fig. 1.

Detailed ways

A wall-mounted air conditioner indoor unit according to an embodiment of the present invention will be described below with reference to FIGS. 1 to 4. In the description of the embodiments of the present invention, the orientations or positions of "front", "back", "upper", "lower", "top", "bottom", "inside", "outside", "lateral", etc. are indicated. The relationship is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of the description of the invention and the simplification of the description, and does not indicate or imply that the device or component referred to has a specific orientation, is constructed and operated in a specific orientation, and thus It is not to be understood as limiting the invention. The wind direction is indicated by arrows in Figure 1.

1 is a schematic structural view of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention; FIG. 2 is a schematic rear view of the wall-mounted air conditioner indoor unit shown in FIG. 1; and FIG. 3 is an AA of the wall-mounted air conditioner indoor unit shown in FIG. Fig. 4 is a schematic exploded view of the wall-mounted air conditioner indoor unit shown in Fig. 1.

As shown in FIG. 1 to FIG. 4, the wall-mounted air conditioner indoor unit of the embodiment of the present invention may generally include a housing 100, an evaporator 200, a main air duct 401, a fan 300, and at least one mixed air duct 600. The wall-mounted air conditioner indoor unit and the air conditioner outdoor unit (not shown) constitute a vapor compression refrigeration cycle system, and realize cooling/heating of the indoor environment.

The housing 100 defines an air inlet 101 and an air outlet 102. The air inlet 101 is for allowing air in the indoor environment to enter the interior of the casing 100, and the air outlet 102 is for supplying air to the indoor environment. The housing 100 may be an elongated structure extending in a lateral direction (ie, a left-right direction). The air inlet 101 is preferably disposed on the upper side of the casing 100. The air outlet 102 may be an elongated opening extending along the lateral direction of the housing 100 and open at the bottom of the housing 100 and facing the front lower side so that the wall-mounted air conditioner indoor unit is mounted on the wall for easy downward Air supply. As shown in FIG. 4, the housing 100 may include a skeleton 110, a base 150, a left panel 130, a right panel 140, and a front panel 120. The skeleton 110 and the base 150 constitute an integral support structure of the housing 100 for mounting various components of the air conditioner indoor unit. The left panel 130, the right panel 140, and the front panel 120 are used to constitute an appearance of the air conditioner indoor unit.

The evaporator 200 is disposed in the casing 100 for heat exchange with air entering the casing 100 from the air inlet 101 to form heat exchange wind (specifically, cold air during cooling and hot air when heating).

The main duct 401 is disposed in the casing 100 for draining the heat exchange air to the air outlet 102. 1 and 3, the main air duct 401 may include an upper wall 420, a lower wall 410, a left wall 430, and a right wall 420. The front edges of the upper wall 420, the lower wall 410, the left wall 430, and the right wall 420 enclose the aforementioned air outlet 102.

As shown in FIG. 4, the fan 300 is disposed within the main air duct 401 and configured to cause air to flow from the air inlet 101 toward the air outlet 102. The fan 300 may be a cross-flow fan that extends in the lateral direction of the housing 100 with a central axis of rotation, the motor 310 of which is disposed at one of its lateral ends. The evaporator 200 may be a three-stage evaporator disposed above the cross flow fan 300, and further may be a finned evaporator.

As shown in FIG. 1, at least one mixed air duct 600 is formed in the casing 100, which is configured to allow the wind of the indoor environment to flow through the mixed air duct 600 to the main air duct 401 to be mixed with the heat exchange air, and the mixed air duct 600 The outlet 620 is located on the lateral side (left or right side) of the air outlet 102. The inlet 610 of the mixed air duct 600 is located at the bottom of the housing 100 to flow the air of the indoor environment upward into the mixed air duct 600. A hole is opened upward from the bottom of the housing 100, and the opening extends forward and upward to the lateral side of the air outlet 102 to form a mixed air duct 600. The air conditioner indoor unit is more used for summer cooling, and therefore, the inlet 610 is located at the bottom of the casing 100 and is opened downward to facilitate the upward flow of hot air (higher temperature) in the indoor environment during cooling to the mixed air duct 600.

In some embodiments, since the shape of the air outlet 102 is elongated, the outlet 620 of the mixed air duct 600 may have a square structure to more closely match the shape of the air outlet 102.

In the embodiment of the present invention, the air outlet 102 of the main air duct 401 blows out the heat exchange air outward, and forms a negative pressure region on the lateral side thereof, and the airflow at the outlet 620 of the mixed air duct 600 is caused to be heated and exchanged. The wind mixes to form a mixed-flow wind with moderate temperature. In this way, the air in the indoor environment continuously flows into the heat exchange wind through the mixed air duct 600. In the cooling mode, the mixed-flow wind has a higher temperature than the heat-exchanged wind (cold wind), which makes the wind softer and makes the human body feel more comfortable. In the heating mode, the temperature of the mixed-flow wind is lower than that of the heat-exchanged wind (hot air), and the temperature of the wind is also more suitable, so that the wind that is too hot is blown to the human body to make the human body feel uncomfortable. At the same time, since the indoor air merges into the heat exchange air, the air volume of the air outlet 102 is also increased, and the cooling/heating speed is increased.

In the embodiment of the present invention, the outlet 620 of the mixed air duct 600 and the air outlet 102 are laterally arranged side by side, so that the occupied space is small. Moreover, the mixed air duct 600 is opened on both lateral sides of the air outlet 102 of the casing 100, and does not need to add other components, and has a simple structure and is easy to implement.

In some improved structures of the prior art, a mixed air outlet is disposed at a lower end of the air outlet 102, and the indoor air on the rear side of the casing 100 is drained to the air outlet 102 by the mixed air outlet to be mixed with the heat exchange air. Achieve mixed flow effects. However, this improved structure causes an increase in the height of the air conditioner indoor unit, which affects the overall appearance of the air conditioner indoor unit. In the embodiment of the present invention, the outlet 620 of the mixed air duct 600 is disposed on both lateral sides of the air outlet 102, which completely avoids the above problem and saves the height space of the air conditioner indoor unit.

In some embodiments, the number of the mixed air ducts 600 is preferably two, and the outlets 620 of the two mixed air ducts 600 are respectively disposed at lateral sides of the air outlet 102. The two mixed air ducts 600 have the same shape and are symmetrically disposed in the lateral direction of the housing 100. The amount of mixed air can be further increased by providing two mixed air ducts 600.

As shown in FIG. 1, in some embodiments, the left wall 430 of the main air duct 401 is separated from the main air duct 401 and the mixed air duct 600 on the left side, that is, the main air duct 401 and the mixed air duct. Only the left wall 430 is spaced between 600. Similarly, the right wall 420 of the left air duct is separated from the main air duct 401 and the mixed air duct 600 on the right side. In this way, the interval between the main air duct 401 and the mixed air duct 600 is minimized, which not only enhances the entrainment effect of the air outlet 102 to the airflow of the mixed air duct 600, increases the air volume, but also enables the air conditioner indoor unit. The structure in the lateral direction is more compact.

As shown in FIG. 3, in some embodiments, the air outlet 102 may be provided with a wind deflector 500 rotatable about a transverse axis, and the air deflector 500 is used for controlled rotation to a position to change the air outlet 102. The direction of the wind. The air deflector 500 can also be oscillated up and down continuously under control to realize the wind in the up and down direction of the air outlet 102. At the same time, the wind deflector 500 can be configured to be rotatable to the position of the outlet vent 102 and the outlet 620 of the two mixed air ducts 600 such that the outlet 620 of the mixed air duct 600 does not affect the overall appearance of the air conditioner indoor unit.

In this regard, it will be appreciated by those skilled in the <RTIgt;the</RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; The content directly determines or derives many other variations or modifications consistent with the principles of the invention. Therefore, the scope of the invention should be understood and construed as covering all such other modifications or modifications.

Claims

A wall-mounted air conditioner indoor unit includes:

a housing having an air inlet for introducing air from the indoor environment and an air outlet for supplying air to the indoor environment;

An evaporator disposed in the housing for heat exchange with the wind flowing in from the air inlet to form a heat exchange wind;

a main air duct disposed in the casing for guiding the heat exchange air to the air outlet;

a fan disposed in the main air duct configured to cause air to flow from the air inlet to the air outlet; and

At least one mixed air duct formed in the casing, configured to allow wind of an indoor environment to flow through the mixed air duct to the main air duct to be mixed with the heat exchange wind;

The outlet of the mixed air duct is located on a lateral side of the air outlet.
A wall-mounted air conditioner indoor unit according to claim 1, wherein

The air outlet is an elongated opening extending in a lateral direction of the housing;

The number of the mixed air ducts is two, and the outlets of the two mixed air ducts are respectively disposed at lateral sides of the air outlet.
A wall-mounted air conditioner indoor unit according to claim 2, wherein

The air outlet is opened at a bottom of the housing toward the front lower side;

The inlet of the mixed air duct is located at the bottom of the casing and is open downward so that the air of the indoor environment flows upward into the mixed air duct.
A wall-mounted air conditioner indoor unit according to claim 2, wherein

The main air duct is composed of an upper wall, a lower wall, a left wall and a right wall, and a front edge of the upper wall, the lower wall, the left wall and the right wall encloses the air outlet;

The left wall separates the main air duct from the mixed air duct on the left side, and the right wall separates the main air duct from the mixed air duct on the right side.
A wall-mounted air conditioner indoor unit according to claim 2, wherein

The fan is a cross-flow fan that extends in a lateral direction of the housing with a central axis of rotation.
A wall-mounted air conditioner indoor unit according to claim 5, wherein

The evaporator is a three-stage evaporator disposed above the cross flow fan.
A wall-mounted air conditioner indoor unit according to claim 2, wherein

An air deflector rotatable about a transverse axis is disposed at the air outlet, and the air deflector is configured to be rotatable to a position that closes the air outlet and the outlets of the two mixed air ducts.
A wall-mounted air conditioner indoor unit according to claim 2, wherein

The outlet of the mixed air duct is square.
A wall-mounted air conditioner indoor unit according to claim 2, wherein

The two mixed air ducts have the same shape and are symmetrically disposed in the lateral direction of the casing.