WO2023005331A1

WO2023005331A1 - Wall-mounted indoor air-conditioning unit

Info

Publication number: WO2023005331A1
Application number: PCT/CN2022/091763
Authority: WO
Inventors: 李英舒; 张丽; 吴丽琴; 李婧; 王永涛
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: 2021-07-28
Filing date: 2022-05-09
Publication date: 2023-02-02
Also published as: CN115682150A

Abstract

A wall-mounted indoor air-conditioning unit, comprising a housing. The housing comprises a partition strip, and a volute tongue and a volute which are arranged front and back. The partition strip is located below the front end of the volute tongue and located in front of the lower end of the volute, to define an air outlet channel together with the volute tongue and the volute. The partition strip and the front end of the volute tongue define a front-facing first air supply port, and the partition strip and the lower end of the volute define a downward-facing second air supply port; and a back-facing wedge portion is formed at the rear end of the partition strip, and is configured to split the air-out airflow blown thereto into an upper strand and a lower strand so as to flow forward from the upper side and the lower side of the partition strip, respectively. The wall-mounted indoor air-conditioning unit of the present invention can supply air forwards and downwards, has smaller air outlet resistance, and can prevent condensation at the air supply ports.

Description

Wall-mounted air conditioner indoor unit

technical field

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

Background technique

Existing wall-mounted air-conditioning indoor units are usually provided with a strip-shaped air outlet at the lower part of the front side of the casing.

On this basis, some existing technologies have made many improvements to the air outlet structure, but due to the constraints of the orientation of the air outlet itself, the air supply direction, air supply range and air supply distance of the air conditioner are still greatly restricted, which affects the user experience .

Contents of the invention

An object of the present invention is to overcome the above-mentioned problems or at least partly solve the above-mentioned problems, and provide a wall-mounted air-conditioning indoor unit capable of blowing air forward and downward, and having smaller wind-out resistance.

Another object of the present invention is to avoid condensation at the air outlet.

In particular, the present invention provides a wall-mounted air conditioner indoor unit, which includes a casing, the casing includes a partition bar and volute tongues and volute cases arranged in front and back, the partition strip is located below the front end of the volute tongue and The front of the lower end of the volute is used to define an air duct together with the volute tongue and the volute, and the partition bar and the front end of the volute tongue define a first air supply port facing forward. The lower end of the volute defines a second downward air supply port; and

The rear end of the partition bar is formed with a sharp split part facing backward, which is configured to split the air flow blowing towards it into upper and lower streams, so as to flow forward from the upper and lower sides of the partition bar respectively.

Optionally, at a place adjacent to the first air supply port, the distance between the volute tongue and the partition bar gradually decreases along the airflow direction, constituting a tapered section of the air duct; and

The wall-mounted air-conditioning indoor unit further includes a flow guide, which is rod-shaped parallel to the length direction of the first air supply port, is arranged in the air duct, and defines an outlet with the volute tongue and the partition strip, respectively. wind gap, and is used to guide the airflow blowing towards the first air outlet to the volute tongue and the partition bar, so that the airflow gradually flows out towards the airflow center under the guidance of the tapered section of the air duct The first air supply port.

Optionally, a rear section of the upper surface of the divider strip constitutes the upper surface of the wedge; and

The rear section of the lower surface of the divider extends from the front to the rear along the folding line, straight line or arc gradually approaching the upper surface of the divider to the rear end of the upper surface of the divider to form the wedge.

Optionally, the cross-sectional profile of the deflector is an "olive shape" with two upper and lower points and two convex and curved front and rear, and its upper tip is located in front of the lower tip, so that the guide The rear surface of the flow element faces upwards and backwards, and the front surface faces downwards and forwards.

Optionally, the section of the volute tongue used to define the air outlet gap is a curved section with the concave side facing downward, which surrounds the air guide above the air guide; and

The upper surface of the partition bar is in a concave curved shape extending gradually upward from the rear to the front, and is located below the flow guide.

Optionally, the volute tongue also includes:

The inclined section is a straight line extending backward and upward from the concave side of the tongue toward the rear end of the curved section; and

The inlet section bends and extends forward and upward from the rear end of the inclined section.

Optionally, the upper surface of the partition strip is a concave arc surface, and the front section of the lower surface is an outward convex arc surface.

Optionally, the long axis is the line connecting the two tips of the deflector, the axis perpendicular to the long axis and passing through its midpoint is the short axis, and the angle α between the short axis and the horizontal plane satisfies: 5° ≤α≤10°.

Optionally, an air deflector is provided at the second air supply port, and when the air deflector is in the closed state, the upward facing surface is the air guiding surface, and the downward facing surface is the non-wind guiding surface; and

The volute has a concave arc section adjacent to its lower end, so that when the wind deflector rotates to the state where the air guiding surface faces forward and upward, the airflow is guided by the concave arc section Blow towards the non-deflecting side.

Optionally, the front section of the air deflector is bent upwards so as to direct the airflow to the lower surface of the partition bar when the air deflector is in an open state.

In the wall-mounted air conditioner indoor unit of the present invention, the two air supply ports of the first air supply port and the second air supply port of the casing are separated by a partition bar, which can supply air forward and downward, so that the range of air supply angle is larger, and can Realize the distribution of heating and cooling. That is, when the air conditioner is cooling, the first air supply port is used to send cold air forward to avoid blowing people; when the air conditioner is heating, the second air supply port is used to send hot air downward to make it easier for the hot air to reach the ground. Moreover, the present invention makes the rear end of the partition bar form a wedge part, splits the outlet air flow blown to it into upper and lower two streams, so as to flow forward from the upper and lower sides of the partition bar respectively, so that the partition bar is opposite to the outlet air flow. The resistance is smaller, avoiding the problem of large wind resistance and noise caused by setting the divider. Moreover, since the airflow also flows through the lower side of the partition bar, condensation does not occur on the lower surface of the partition bar.

Furthermore, in the wall-mounted air conditioner indoor unit of the present invention, the volute has a concave arc section adjacent to its lower end, so that when the wind guide plate is rotated to the state where the wind guide surface faces forward and upward, the concave arc The section directs the airflow to the non-wind-guiding surface, which can avoid condensation on the non-wind-guiding surface in cooling mode.

Furthermore, in the wall-mounted air conditioner indoor unit of the present invention, when the air deflector is in the closed state, its front section is bent upwards, so as to guide the airflow to the lower surface of the partition bar when the air deflector is in the open state , to avoid condensation on the underside surface of the divider.

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 a wall-mounted air conditioner indoor unit according to an embodiment of the present invention;

Fig. 2 is a schematic cross-sectional enlarged view of the wall-mounted air conditioner indoor unit shown in Fig. 1;

Fig. 3 is a schematic cross-sectional view of a divider in Fig. 2;

Fig. 4 is another kind of implementation structure schematic diagram of divider;

Fig. 5 is another kind of implementation structure schematic diagram of divider;

Fig. 6 is a schematic cross-sectional view of a flow guide of the wall-mounted air conditioner indoor unit shown in Fig. 1;

Fig. 7 is a schematic diagram of the indoor unit of the wall-mounted air conditioner shown in Fig. 2 when it is operating in the forward convergent air supply mode;

Fig. 8 is a schematic diagram of the wall-mounted air conditioner indoor unit shown in Fig. 7 after the deflector is moved forward;

Fig. 9 is a schematic diagram of the indoor unit of the wall-mounted air conditioner shown in Fig. 2 when operating in the downward air supply mode;

Fig. 10 is a schematic diagram of the indoor unit of the wall-mounted air conditioner shown in Fig. 2 when operating in the maximum air supply mode.

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 wall-mounted air conditioner indoor unit according to the embodiment of the present invention will be described below with reference to FIGS. 1 to 10 . Among them, the orientation or positional relationship indicated by "front", "rear", "upper", "lower", "top", "bottom", "inner", "outer", "horizontal", etc. are based on the The orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as limiting the present invention . Arrows in the figure indicate the flow direction of the airflow.

The terms "first", "second", etc. are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined as "first", "second", etc. 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 clearly specified and limited, terms such as "installation", "connection", "connection", "fixed" and "coupled" should be interpreted in a broad sense, for example, it can be a fixed connection or a detachable connection, or a Integral; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two elements or the interaction relationship between two elements, 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.

An embodiment of the present invention provides a wall-mounted air conditioner indoor unit. The wall-mounted air conditioner indoor unit is the indoor part of the split wall-mounted room air conditioner, and is used to adjust indoor air, such as cooling/heating, dehumidification, and introducing fresh air, etc.

Fig. 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 cross-sectional enlarged view of the wall-mounted air conditioner indoor unit shown in Fig. 1 .

As shown in FIGS. 1 and 2 , the wall-mounted air conditioner indoor unit according to the embodiment of the present invention may generally include a casing 10 . The casing 10 includes a skeleton for constituting the basic frame of the indoor unit and body parts such as a volute and a volute tongue for defining an air duct, and is not a pure air conditioner casing. Specifically, the casing 10 includes, in addition to the elongated skeleton, a partition bar 152 , and a volute tongue 151 and a volute case 153 arranged in front and rear. The partition bar 152 is located below the front end of the volute tongue 151 and in front of the lower end of the volute case 153 , so as to define the air passage 15 together with the volute tongue 151 and the volute case 153 . The air duct 15 is a cross-flow air duct. The partition bar 152 and the front end of the volute tongue 151 define the first air supply port 11 facing forward, and the partition bar 152 and the lower end of the volute case 153 define the second air supply port 12 facing downward.

As shown in FIG. 1 , the casing 10 may be in the shape of a long strip extending along the horizontal direction, and its cross section is substantially quadrilateral. The casing 10 may include a top wall, a front wall, a rear wall, a bottom wall and two lateral end walls, the rear wall of which is attached to and hung on the indoor wall. The transverse or longitudinal direction of the housing 10 is marked with x in the figure. The first air supply port 11 , the second air supply port 12 , the partition bar 152 , the volute tongue 151 and the volute case 153 can all be long strips whose length direction is parallel to the length direction x of the casing 10 .

The first air supply port 11 and the second air supply port 12 are used to blow the airflow in the casing 10 to the room to adjust the indoor air. The aforementioned airflow can be cold air produced by the indoor unit of the wall-mounted air conditioner in cooling mode, hot air produced in heating mode, or fresh air introduced in fresh air mode.

The wall-mounted air conditioner indoor unit may be an indoor unit of an air conditioner that performs refrigeration/heating through a vapor compression refrigeration cycle system, and it also includes a heat exchanger 40 and a cross-flow fan 50 . The heat exchanger 40 is arranged in the casing 10 for exchanging heat with the air flow passing through it to form a heat exchange air flow, namely cold air or hot air, which can be a three-stage fin heat exchanger. The cross-flow fan 50 is arranged in the casing 10 and is located at the entrance of the air duct 20, and is used to urge the indoor air to enter the casing 10 through the air inlet 13 on the top of the casing 10, so as to complete the heat exchange with the heat exchanger 40 as heat exchange. The airflow then promotes the heat exchange air to flow through the air channel 20 to the first air supply port 11 and the second air supply port 12 , and finally blows into the room from the first air supply port 11 and the second air supply port 12 .

Fig. 3 is a schematic cross-sectional view of the partition bar in Fig. 2 .

As shown in FIGS. 2 and 3 , the rear end of the partition bar 152 is formed with a rearward wedge 1520 , which is configured to split the outgoing air flow blown thereinto into upper and lower two strands, so as to separate from the top and bottom of the partition bar 152 . The upper and lower sides flow forward.

In the wall-mounted air-conditioning indoor unit of the embodiment of the present invention, the first air supply port 11 and the second air supply port 12 can supply air forward and downward, so that the air supply angle range is wider, and the cooling and heating distribution can be realized. That is, when the air conditioner is cooling, the first air supply port 11 is used to send cold air forward so as not to blow people; when the air conditioner is heating, the second air supply port 12 is used to send hot air downward to make it easier for the hot air to reach the ground. The partition bar 152 is used to separate the first air supply port 11 and the second air supply port 12. In the embodiment of the present invention, the rear end of the partition bar 152 is formed with a wedge portion 1520, which splits the air flow blowing towards it into upper and lower parts. The two streams flow forward from the upper and lower sides of the partition bar 152 respectively, so that the resistance of the partition bar 152 to the outlet airflow is smaller. Moreover, since the airflow also flows through the lower side of the partition bar 152, no condensation will occur.

In some embodiments, as shown in FIG. 2 , adjacent to the first air supply port 11, the distance between the volute tongue 151 (specifically its ba section) and the partition bar 152 (ed section) gradually decreases along the airflow direction, forming a The tapering section of the air duct 15. In other words, at a place adjacent to the first air supply port 11 , along the airflow direction, the cross section of the air duct 15 gradually becomes smaller. The wall-mounted air conditioner indoor unit also includes a flow guide 30 . The deflector 30 is a bar-shaped parallel to the length direction (x direction) of the first air supply port 11, which is arranged in the air duct 15 and is respectively defined by its volute tongue 151 (sa section) and the partition bar 152 (ed section). There are

air outlet gaps

154, 155, and are used to direct the airflow blown to the first air supply port 11 to the volute tongue 151 and the partition bar 152 of the air duct 15, so that the air flow gradually moves toward the air flow under the guidance of the tapered section of the air duct 15. The center converges and flows out of the first air supply port 11 .

Due to the addition of the flow guide 30, the flow cross section of the

air outlet gaps

154, 155 must be smaller than the flow cross section of the original air duct 15, which makes the air flow faster. Under the guidance of the tapering section of the air duct 15, the high-speed air flow gradually converges towards the center of the air flow during the outward flow process, forming a convergence effect, which makes the wind force very strong and the air supply distance is longer, which meets the needs of wall-mounted air conditioner indoor units. The demand for long-distance air supply and strong air supply also makes the air supply range larger, making the cooling/heating speed more uniform throughout the indoor space, and making the human body feel more comfortable.

In the embodiment of the present invention, the air guide 30 not only defines the

air outlet gaps

154, 155 with the volute tongue 151 and the partition bar 152 of the air duct 15, but also plays the role of increasing the wind speed, and can just guide the airflow to the air outlet gap 154. , 155, or force the airflow to flow toward the

air outlet gaps

154, 155, so as to force the airflow to accept the converging guidance of the tapered section of the air duct 15, forming the final aggregated air supply effect. The embodiment of the present invention achieves a very good aggregated air supply effect only by improving the air duct 15 and adding a flow guide 30. Its structure is very simple, and its cost is low, and it is easy to realize mass production and promotion.

Fig. 4 is a structural diagram of another implementation of the partition; Fig. 5 is a schematic diagram of another implementation of the partition.

In some embodiments, as shown in FIGS. 2-5 , the rear section of the upper surface 1521 of the divider 152 constitutes the upper surface of the wedge 1520 . In this way, the wedge portion 1520 does not destroy the integrity of the upper surface 1521 of the partition bar 152, so that the upper surface 1521 of the partition bar 152 can guide the air flow out from the first air outlet 11 more smoothly and with less resistance. . The rear section 1523 of the lower surface of the divider 152 extends from the front to the rear along the crease line, straight line or arc gradually approaching the upper surface 1521 of the divider 152 to the rear end of the upper surface 1521 of the divider 152 to form a wedge 1520. As shown in FIGS. 3 and 4 , the rear section 1523 of the lower surface extends from the front to the rear along the fold line to the rear end of the upper surface 1521 . As shown in FIG. 5 , the rear section 1523 extends straight from front to rear to the rear end of the upper surface 1521 .

In some embodiments, the projections of the upper edge and the lower edge of the first air supply port 11 toward the air guide 30 may also fall on the air guide 30 . That is to make the size of the air guide 30 in the vertical direction relatively larger, so that the downward slope of the air outlet gap 154 formed by the air guide 30 and the volute tongue 151 of the air channel 15 is longer, and forms a gap with the partition bar 152. The upward sloping part of the air outlet gap 155 is longer, so that the airflow can be more powerfully guided downwards and upwards, so as to aggregate in front of the deflector 30 with greater wind force and make the air supply distance farther.

As shown in Fig. 2, in the embodiment of the present invention, the profile of the cross section of the flow guide 30 (cutting the flow guide 30 along the sectional plane extending in the front-rear direction) is to have two upper and lower pointed points, and two front and rear convex curves. Shaped "Olive". The outwardly convex curved surface of the deflector 30 is very conducive to splitting the airflow into two streams and guiding them upward and downward respectively, so that the guidance is smoother and the airflow resistance is smaller. The curved surface protruding forward of the deflector 30 can guide the airflow near it to flow on the surface and gradually converge towards the central direction, so as to jointly exert pressure on the airflow together with the tapered inner wall of the air duct 15. Polymerization, enhance the effect of airflow polymerization.

In addition, the upper tip of the air guide 30 is located above the front of the lower tip, so that the rear surface of the air guide 30 faces upward and rear, and the front surface of the air guide 30 faces forward and downward. In this way, the angle between the convergent air supply direction and the wind direction of the upstream air duct is smaller, making it easier for the airflow to turn to the convergent angle, reducing the wind resistance and increasing the air volume of the convergent air supply.

Specifically, as shown in FIG. 2 , the line connecting the two tips of the air guide 30 is its major axis z, and the axis perpendicular to the major axis z and passing through its midpoint O is the minor axis y, and the clamp between the minor axis y and the horizontal plane The angle α satisfies: 5°≤α≤10°, preferably 6°≤α≤8°. α is also the angle at which the deflector 30 is inclined forward from a vertical state (the upper tip is directly above the lower tip). Limiting the angle α to the above range can reduce the air outlet resistance on the one hand and increase the air volume of the aggregated air supply; on the other hand, it can also avoid the influence of the upward air supply angle due to the downward inclination of the deflector 30 .

As shown in FIG. 2 , the section (as section) of the volute tongue 151 of the air duct 15 used to define the air outlet gap 154 is a curved section with the concave side facing downward, which can be arc-shaped or formed by connecting multiple arc-shaped sections. There is a front end point a, a highest point b and a rear end point s, which surround the air guide 30 above the air guide 30 . The upper surface 1521 of the partition bar 152 of the air duct 15 is in a concave curved shape extending obliquely upwards from the rear to the front, and is located at the front and bottom of the air guide 30 . In this way, both the air outlet gap 154 and the air outlet gap 155 are curved or further arc-shaped, so that the airflow direction can be changed more smoothly and the airflow resistance can be reduced. Preferably, the upper surface 1521 of the partition bar 152 is a concave arc surface, and the front section 1522 of the lower surface is an outward convex arc surface.

In some embodiments, as shown in FIG. 2 , the volute tongue 151 of the air duct 15 further includes an inclined section (sc section) and an inlet section (ck section). The inclined section (sc section) is a straight line extending backward and upward from the concave side of the volute tongue 151 toward the rear end of the downward curved section (as section). The inlet section (ck section) bends and extends forward and upward from the rear end of the inclined section (sc section). The inclined section (sc section) and the inlet section (ck section) of the volute tongue 151 are equivalent to the volute tongue of a traditional through-flow air duct. The angle between the minor axis y and the inclined segment (sc segment)

satisfy:

preferred to meet

In order to make the angle between the aggregated air supply direction and the wind direction of the upstream air duct (that is, the inclined section) smaller, the airflow is easier to turn to the aggregated angle, the wind resistance is reduced, and the air volume of the aggregated air supply is increased. In addition, the inclination angle of the inclined section (sc section) is θ, preferably θ≥25°, so as to guide the airflow obliquely downward and facilitate heating and airflow.

Fig. 6 is a schematic cross-sectional view of a flow guide of the wall-mounted air conditioner indoor unit shown in Fig. 1 .

In some embodiments, referring to FIG. 6 , the cross-sectional outer profile of the deflector 30 may include a front arc segment 31 and a rear arc segment 32 . The top and bottom ends of the two meet with a rounded r transition. The radius of the front arc segment 31 can be made greater than the radius of the rear arc segment 32, so that the rear arc segment 32 is relatively more protruding, so that the distance between it and the volute tongue 151 is smaller, and the front arc segment 31 is relatively more Flat, so that the distance between it and the volute tongue 151 is larger, so that the airflow can flow through the air outlet gap 154 more smoothly. Certainly, in some alternative embodiments, the radius of the front arc segment 31 may also be equal to or smaller than the radius of the rear arc segment 32 . In other alternative embodiments, the front arc line segment 31 and/or the rear arc line segment 32 may be formed by connecting multiple segments of arcs, and the details will not be repeated here.

Referring to Fig. 6, the radius of the front arc segment 31 is R1, the radius of the rear arc segment 32 is R2, and the distance between the top and the bottom of the flow guide 30 is H, satisfying: 0.5≤R1/H≤0.8, 0.5≤ R2/H≤0.8, further satisfying 0.3≤R1/H≤0.6, 0.3≤R2/H≤0.6. In this way, the width (maximum dimension in the vertical direction) of the air guiding member 30 is more coordinated with the curvature of the front and rear surfaces, so as to achieve a balance between the wind guiding effect and the flow resistance.

As shown in FIG. 2 , an air deflector 60 is provided at the second air outlet 12 . The air deflector 60 is rotatably mounted on the casing 10 for opening or closing the second air outlet 12 and guiding the air blowing direction of the second air outlet 12 . In addition, an air guiding mechanism such as a swing leaf assembly may also be installed at the second air supply port 12 .

Fig. 7 is a schematic diagram of the indoor unit of the wall-mounted air conditioner shown in Fig. 2 when it is running in the forward aggregate air supply mode; Fig. 8 is a schematic diagram of the indoor unit of the wall-mounted air conditioner shown in Fig. 7 after the air guide is moved forward; Fig. 9 is a diagram FIG. 10 is a schematic diagram of the wall-mounted air conditioner indoor unit shown in FIG. 2 operating in the maximum air supply mode.

In some embodiments, as shown in FIGS. 8 and 9 , the deflector 30 can be configured to move back and forth, so as to adjust the size of the

air outlet gaps

154 , 155 . Specifically, the

air outlet gaps

154 and 155 can be enlarged by moving the deflector 30 backward, so as to increase the wind force, increase the cooling/heating speed and extend the air supply distance, refer to the state changes from FIG. 8 to FIG. 9 . The

air outlet gaps

154 and 155 can also be adjusted to be smaller by moving the deflector 30 forward, so as to reduce the wind force, simulate the natural wind, and make the air flow more comfortable. Moreover, the forward and backward movement of the air guiding member 30 is also convenient for closing the first air outlet 11 . The driving mechanism used to drive the forward and backward translation of the deflector 30 is a rack and pinion mechanism, which will not be described in detail. Therefore, the embodiment of the present invention has the following three air supply modes for users to choose from, specifically as follows:

Forward aggregated air supply mode: as shown in Figure 2, the deflector 30 is located behind the first air supply port 11, the air deflector 60 closes the second air supply port 12, and the first air supply port 11 aggregates upward to supply air. Make the air flow avoid the human body, reach the highest point and then scatter downwards, realizing a "shower-style" cooling experience. When the air conditioner is running in the cooling mode, it can supply air according to the combined air supply mode.

Downward air supply mode: as shown in FIG. 9 , control the air deflector 30 to move forward to close the first air supply port 11, so that the air deflector 60 opens the second air supply port 12, and under the guidance of the air deflector 60, the first air supply Two air supply outlets 12 supply air downwards. When the air conditioner is running in the heating mode, the air can be supplied according to the downward air supply mode, so as to accelerate the heating speed. In this mode, the air deflector 60 can be in a vertically extending state, and its end is adjacent to the volute tongue 151, so as to guide the air flow to bend downwards and flow to the second air outlet. After the air flow enters the air duct 15, the cross-section gradually increases to realize the expansion, and after the action of the air deflector 60, it turns vertically downward, and then passes through the tapered channel defined by the air deflector 60 and the volute 153 of the air duct 15 to realize Acceleration before outflow. Finally, the heating air supply has a large air volume, high wind speed, and vertical wind direction, which is conducive to the hot air reaching the ground directly, and the carpet air supply effect is good.

Maximum air supply mode: as shown in Figure 10, the deflector 30 is located behind the first air supply port 11, the air deflector 60 opens the second air supply port 12, and the first air supply port 11 aggregates upward to supply air. Guided by the wind plate 60, air is blown forward and downward by the second air supply port 12. When the air conditioner is running in cooling or heating mode, the maximum air supply mode can be selected.

In some embodiments, the indoor unit of the wall-mounted air conditioner also has a cooling decondensation mode as shown in FIG. 7 and FIG. 8 .

Specifically, when the wind deflector 60 is in the closed state, the upward facing surface is the wind guiding surface 61 , and the downward facing surface is the non-wind guiding surface 62 , refer to FIG. 2 . The volute 153 has a concave arc section 1531 (fh section) adjacent to its lower end, preferably circular arc, so that when the wind deflector 60 rotates to the state where the wind deflector surface 61 faces forward and upward, The arc section 1531 guides the airflow to the non-wind-guiding surface 62 , refer to FIG. 7 and FIG. 8 . In this way, during cooling operation, the air deflector 60 can be rotated to open a preset angle, such as 30° as shown in FIG. 7 or 15° as shown in FIG. Airflow also passes through the wind surface 62 , so that condensation does not occur on both sides of the wind deflector 60 . In addition, when the wind deflector 60 is in the closed state, its front section is bent upwards, specifically, the whole can be arc-shaped, or only the front section can be bent. In this way, when the air deflector 60 is in an open state, the curved section at the front of the air deflector 60 guides the airflow to the lower surface of the partition bar 152 , so that condensation does not occur on the lower surface of the partition bar 152 .

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

A wall-mounted air-conditioning indoor unit includes a casing, the casing includes a partition bar and volute tongues and volutes arranged in front and back, the partition strip is located below the front end of the volute tongue and in front of the lower end of the volute, so that An air duct is defined together with the volute tongue and the volute case, the partition bar and the front end of the volute tongue define a first air supply port facing forward, and the partition bar and the lower end of the volute case define a downward-facing air duct. the second air supply port; and

The rear end of the partition bar is formed with a sharp split part facing backward, which is configured to split the air flow blowing towards it into upper and lower streams, so as to flow forward from the upper and lower sides of the partition bar respectively.
The wall-mounted air conditioner indoor unit according to claim 1, wherein

Adjacent to the first air supply port, the distance between the volute tongue and the partition bar gradually decreases along the airflow direction, forming a tapered section of the air duct; and

The wall-mounted air-conditioning indoor unit further includes a flow guide, which is rod-shaped parallel to the length direction of the first air supply port, is arranged in the air duct, and defines an outlet with the volute tongue and the partition strip, respectively. wind gap, and is used to guide the airflow blowing towards the first air outlet to the volute tongue and the partition bar, so that the airflow gradually flows out towards the airflow center under the guidance of the tapered section of the air duct The first air supply port.
The wall-mounted air conditioner indoor unit according to claim 2, wherein

a rear section of the upper surface of the divider bar constitutes the upper surface of the wedge; and

The rear section of the lower surface of the divider extends from front to rear along a fold line, a straight line or an arc gradually approaching the upper surface of the divider to the rear end of the upper surface of the divider to form the wedge.
The wall-mounted air conditioner indoor unit according to claim 2 or 3, wherein

The cross-sectional profile of the deflector is an "olive shape" with upper and lower tips, and two convex and curved front and rear, and its upper tip is located above the lower tip, so that the rear of the deflector The surface faces upward and rearward, and the front surface faces downward and forward.
The wall-mounted air conditioner indoor unit according to any one of claims 2-4, wherein

The section of the volute tongue used to define the air outlet gap is a curved section with the concave side facing downward, which surrounds the air guide above the air guide; and

The upper surface of the partition bar is in a concave curved shape extending gradually upward from the rear to the front, and is located below the flow guide.
The wall-mounted air conditioner indoor unit according to claim 5, wherein the volute tongue further comprises:

The inclined section is a straight line extending backward and upward from the concave side of the volute toward the rear end of the curved section; and

The inlet section bends and extends forward and upward from the rear end of the inclined section.
The wall-mounted air conditioner indoor unit according to any one of claims 1-6, wherein

The upper surface of the partition strip is a concave arc surface, and the front section of the lower surface is an outward convex arc surface.
The wall-mounted air conditioner indoor unit according to any one of claims 4-7, wherein

The line connecting the two tips of the deflector is its long axis, the axis perpendicular to the long axis and passing through its midpoint is the short axis, and the angle α between the short axis and the horizontal plane satisfies: 5°≤α≤10 °.
The wall-mounted air conditioner indoor unit according to any one of claims 1-8, wherein

An air deflector is provided at the second air supply port, the upward surface of the air deflector is the air guide surface when the air deflector is in the closed state, and the downward surface is the non-air guide surface; and

The volute has a concave arc section adjacent to its lower end, so that when the wind deflector rotates to the state where the air guiding surface faces forward and upward, the airflow is guided by the concave arc section Blow towards the non-deflecting side.
The wall-mounted air conditioner indoor unit according to claim 9, wherein

The front section of the air deflector is curved upwards to direct airflow towards the underside surface of the divider when the air deflector is in an open state.