阅读说明：本技术 壁挂式空调室内机 (Wall-mounted air conditioner indoor unit ) 是由 张蕾 黄满良 李婧 王永涛 于 2021-08-31 设计创作，主要内容包括：本发明提供了一种壁挂式空调室内机,其包括机壳和导风罩板,机壳上开设有出风口。导风罩板设置在所述出风口外侧,以与所述机壳的外周面限定出导风通道,用于引导从所述出风口流出的送风气流沿所述机壳的外周面向上和/或向下流动。导风罩板具有透风部位,以允许导风通道内的部分送风气流穿透所述透风部位吹向导风罩板外侧。本发明的壁挂式空调室内机具有良好的上吹效果和下吹效果。(The invention provides a wall-mounted air conditioner indoor unit, which comprises a casing and an air guide cover plate, wherein an air outlet is formed in the casing. The air guide cover plate is arranged on the outer side of the air outlet so as to define an air guide channel with the outer peripheral surface of the machine shell, and the air guide channel is used for guiding the air supply airflow flowing out of the air outlet to flow upwards and/or downwards along the outer peripheral surface of the machine shell. The wind guide cover plate is provided with a ventilation part so as to allow part of the air flow in the wind guide channel to penetrate through the ventilation part and blow to the outer side of the wind guide cover plate. The wall-mounted air conditioner indoor unit has good up-blowing effect and down-blowing effect.)

1. A wall-mounted air conditioner indoor unit, comprising:

a casing, which is provided with an air outlet; and

the air guide cover plate is arranged outside the air outlet so as to define an air guide channel with the outer peripheral surface of the machine shell and is used for guiding the air supply flow flowing out of the air outlet to flow upwards and/or downwards along the outer peripheral surface of the machine shell; and is

The wind guide cover plate is provided with a ventilation part so as to allow part of the air supply flow in the wind guide channel to penetrate through the ventilation part and blow towards the outer side of the wind guide cover plate.

2. The wall-mounted air conditioning indoor unit of claim 1,

the ventilation part is in a grid shape.

3. The wall-mounted air conditioning indoor unit of claim 1,

the wind guide cover plate is mounted on the casing in a vertically-movable manner, is provided with a partition part protruding from the inner side surface of the wind guide cover plate to the outer peripheral surface of the casing, divides the wind guide channel into an upper channel with an upward opening and a lower channel with a downward opening, and is configured in such a way that:

the lower channel can be moved to a position opposite to the air outlet so as to guide the air supply flow downwards by the lower channel; or

And moving the air outlet to a position where the upper channel is opposite to the air outlet so as to guide the air supply flow upwards by the upper channel.

4. The wall-mounted air conditioning indoor unit of claim 3,

the ventilation part is positioned above the partition part to allow the air supply flow in the upper channel to blow to the outer side of the air guide cover plate through the ventilation part.

5. The wall-mounted air conditioning indoor unit of claim 4,

the ventilation part is close to the top edge of the wind guide cover plate.

6. The wall-mounted air conditioning indoor unit of claim 3,

the partition part is provided with a tip end close to the outer peripheral surface of the shell;

the upper surface of the partition part is an inwards concave cambered surface which starts from the tip end, extends in the direction away from the shell, gradually inclines upwards and is tangent to the inner side surface of the rest part of the air guide cover plate; and is

The lower surface of the partition part is an inwards concave cambered surface which starts from the tip end, extends towards the direction far away from the shell, gradually inclines downwards and is tangent to the inner side surface of the rest part of the air guide cover plate.

7. The wall-mounted air conditioning indoor unit of claim 3,

the air deflector plate is also configured to be movable to a position where the partition portion is located in the middle of the air outlet so as to guide part of the supply air flow from each of the lower duct and the upper duct.

8. The wall-mounted air conditioning indoor unit of claim 3,

the whole front surface of the shell is a vertical surface; and is

The air outlet is arranged at the lower part of the front surface of the shell.

9. The wall-mounted air conditioning indoor unit of claim 3,

the air outlet is formed in the front surface of the shell; and the wind deflector plate comprises:

a front section located forward of the outlet; and

and the two bending sections respectively extend backwards from the two transverse ends of the front section so as to be respectively installed on the end covers at the two transverse sides of the shell, and each bending section is provided with a wind shield part extending towards the end covers so as to block the backward flow of the air supply airflow.

10. The wall-mounted air conditioning indoor unit of claim 9,

at least one end cover of the shell is provided with a gear rack mechanism which is used for driving the air guide cover plate to move up and down and comprises a motor, a gear and a rack which are meshed with each other;

the motor set up in the end cover is inboard, the gear install in the motor, the rack can set up with translation from top to bottom in the end cover is inboard, and its part passes through the vertical rectangular hole of stepping down that the end cover was seted up stretches out to the end cover outside, and with the wind-guiding cover plate is connected.

Technical Field

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

Background

The cold air density tends to sink relatively more and the hot air density tends to rise relatively less. Therefore, the air conditioner needs to blow cold air upwards as much as possible during cooling, and needs to blow hot air towards the ground as much as possible during heating, so that the cold air or the hot air is diffused more uniformly in the indoor space, and the cooling and heating speed is higher.

An existing wall-mounted air conditioner indoor unit is generally provided with a forward air outlet, and air guide structures such as an air guide plate and a swing blade are utilized to guide the air outlet direction of air supply airflow so as to realize upward air blowing or downward air blowing. However, the current various wind guide structures have limited wind guide angles, and can only supply wind obliquely upwards or obliquely downwards, so that cold wind or hot wind hardly reaches the roof or the ground, and the cooling or heating effect is influenced.

Disclosure of Invention

The object of the present invention is to provide a wall-mounted air conditioning indoor unit that overcomes or at least partially solves the above-mentioned problems.

The invention aims to enhance the up-blowing and down-blowing effects of an indoor unit of a wall-mounted air conditioner.

A further object of the present invention is to facilitate switching between the up-blow mode and the down-blow mode.

In particular, the present invention provides a wall-mounted air conditioning indoor unit, comprising:

a casing, which is provided with an air outlet; and

the air guide cover plate is arranged outside the air outlet so as to define an air guide channel with the outer peripheral surface of the machine shell and is used for guiding the air supply flow flowing out of the air outlet to flow upwards and/or downwards along the outer peripheral surface of the machine shell; and is

The wind guide cover plate is provided with a ventilation part so as to allow part of the air supply flow in the wind guide channel to penetrate through the ventilation part and blow towards the outer side of the wind guide cover plate.

Optionally, the ventilation part is in a grid shape.

Optionally, the wind guide cover plate is mounted on the casing in a vertically-movable manner, and has a partition portion protruding from an inner surface of the wind guide cover plate toward an outer peripheral surface of the casing to partition the wind guide passage into an upper passage with an upward opening and a lower passage with a downward opening, and is configured to: the lower channel can be moved to a position opposite to the air outlet so as to guide the air supply flow downwards by the lower channel; or the air outlet is moved to a position where the upper channel is opposite to the air outlet, so that the air supply airflow is guided upwards by the upper channel.

Optionally, the ventilation portion is located above the partition portion to allow the supply air flow in the upper duct to pass through the ventilation portion and blow towards the outside of the wind deflector plate.

Optionally, the ventilation portion is adjacent to the top edge of the wind deflector plate.

Optionally, the partition has a tip adjacent to the outer peripheral surface of the housing; the upper surface of the partition part is an inwards concave cambered surface which starts from the tip end, extends in the direction away from the shell, gradually inclines upwards and is tangent to the inner side surface of the rest part of the air guide cover plate; and the lower surface of the partition part is an inwards concave cambered surface which starts from the tip end, extends towards the direction far away from the shell, gradually inclines downwards and is tangent to the inner side surface of the rest part of the air guide cover plate.

Optionally, the air deflector plate is further configured to be movable to a position where the partition portion is located in the middle of the air outlet, so as to guide part of the supply air flow by each of the lower duct and the upper duct.

Optionally, the front surface of the casing is a vertical surface as a whole; and the air outlet is arranged at the lower part of the front surface of the shell.

Optionally, the air outlet is arranged on the front surface of the casing; and the wind deflector plate comprises: a front section located forward of the outlet; and the two bending sections respectively extend backwards from the two transverse ends of the front section so as to be respectively installed on the end covers at the two transverse sides of the shell, and each bending section is provided with a wind shield part extending towards the end covers so as to block the backward flow of the air supply airflow.

Optionally, a rack and pinion mechanism is arranged on at least one end cover of the housing, and is used for driving the air guide cover plate to move up and down, and the rack and pinion mechanism comprises a motor, a gear and a rack which are meshed with each other; the motor set up in the end cover is inboard, the gear install in the motor, the rack can set up with translation from top to bottom in the end cover is inboard, and its part passes through the vertical rectangular hole of stepping down that the end cover was seted up stretches out to the end cover outside, and with the wind-guiding cover plate is connected.

In the wall-mounted air conditioner indoor unit, the air guide cover plate is arranged outside the casing, and an air guide channel is defined by the air guide cover plate and the outer peripheral surface of the casing. The air flow (for example, cold air, hot air, fresh air, or purified air flow) inside the casing is blown out from the air outlet of the casing, and then is blown out upward and/or downward along the outer peripheral surface of the casing under the guidance of the air guide cover plate. Because the air supply flow flows along the outer circumference of the casing tightly, the wall attachment effect is formed, and the air supply flow can smoothly reach the roof or the ground along the outer circumference of the casing, so that the wall-mounted air conditioner indoor unit has better refrigerating or heating effect. Meanwhile, the discomfort of human body caused by cold air or hot air blowing can be avoided.

The invention does not make all the air flow upward or downward along the shell, but makes a part of the air flow blow out through the ventilation part of the wind guide cover plate, which makes the air supply direction of the air conditioner more diversified, and makes the part of the air flow form breeze flow, and the human body feels more comfortable.

Furthermore, in the wall-mounted air conditioner indoor unit, the air guide cover plate can be vertically and translationally installed on the shell, and the partition part divides the air guide channel into an upper channel with an upward opening and a lower channel with a downward opening, so that the wall-mounted air conditioner indoor unit has an upward blowing mode and a downward blowing mode for selection, and the refrigeration and heating effects are improved. For example, when the air conditioning heat needs to operate in the down-blowing mode, the air deflector plate is moved to a position where the lower passage is opposite to the air outlet, and the air flow is guided downward by the lower passage. When the air conditioning needs to run in an upward blowing mode, the air guide cover plate is moved to a position where the upper channel is opposite to the air outlet, the air supply flow is guided upwards by the upper channel, and part of cold air is blown out through the air permeable part to form breeze cold air flow, so that a human body feels more comfortable.

Furthermore, in the wall-mounted air conditioner indoor unit, the upper surface and the lower surface of the partition part are both concave cambered surfaces, so that the direction change is more moderate when the air supply flow is blown out from the air outlet and then turns upwards or downwards, and the wind power loss and the noise are reduced.

Furthermore, the wall-mounted air conditioner indoor unit of the invention enables the front surface of the casing to be a vertical surface, so that the air supply flow can form a wall attachment effect on the front surface of the casing, and can flow upwards or downwards along the front surface of the casing better. In addition, the ratio of the distance between the lower edge of the air outlet and the bottom end of the front surface of the machine shell to the width of the air outlet is larger than 1/2, so that the front surface of the machine shell below the air outlet has enough height, when the air conditioner runs in a down-blowing mode, the lower channel is longer, the wall attachment effect is more favorably formed, and the air supply airflow is better guided to the right lower side.

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

fig. 2 is a schematic front view of the wall-mounted air conditioning indoor unit shown in fig. 1;

fig. 3 is a schematic plan view of the wall-mounted air conditioning indoor unit shown in fig. 1;

FIG. 4 is an enlarged cross-sectional view M-M of FIG. 2;

FIG. 5 is an enlarged view at A of FIG. 4;

fig. 6 is a schematic view of the wall-mounted air conditioning indoor unit of fig. 1 switched to a down-blowing mode;

fig. 7 is a schematic front view of the wall-mounted air conditioning indoor unit of fig. 6;

FIG. 8 is an enlarged cross-sectional view of N-N of FIG. 7;

fig. 9 is a schematic exploded view of the wall-mounted air conditioning indoor unit of fig. 1;

fig. 10 is a partial, rear elevational view of the wall-mounted air conditioning indoor unit of fig. 1;

FIG. 11 is a schematic view of the engagement of the end cap with the rack and pinion mechanism;

FIG. 12 is a schematic exploded view of the structure shown in FIG. 11;

fig. 13 is a schematic cross-sectional view of a wall-mounted air conditioning indoor unit according to another embodiment of the present invention.

Detailed Description

A wall-mounted type air conditioning indoor unit according to an embodiment of the present invention will be described with reference to fig. 1 to 13. Where the orientations or positional relationships indicated by the terms "front," "back," "upper," "lower," "top," "bottom," "inner," "outer," "lateral," and the like are based on the orientations or positional relationships shown in the drawings, the description is for convenience only and to simplify the description, and no indication or suggestion is made that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention. The flow direction of the supply air flow is indicated by arrows in the figure.

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

The embodiment of the invention provides a wall-mounted air conditioner indoor unit. An indoor unit of a wall-mounted type air conditioner is an indoor part of a split wall-mounted type room air conditioner for conditioning indoor air, such as cooling/heating, dehumidifying, introducing fresh air, and the like.

Fig. 1 is a schematic structural view of a wall-mounted type air conditioning indoor unit according to an embodiment of the present invention; fig. 2 is a schematic front view of the wall-mounted air conditioning indoor unit shown in fig. 1; fig. 3 is a schematic plan view of the wall-mounted air conditioning indoor unit shown in fig. 1; FIG. 4 is an enlarged cross-sectional view M-M of FIG. 2; FIG. 5 is an enlarged view at A of FIG. 4; fig. 6 is a schematic view of the wall-mounted air conditioning indoor unit shown in fig. 1 when switched to a down-blowing mode; fig. 7 is a schematic front view of the wall-mounted air conditioning indoor unit of fig. 6; fig. 8 is an enlarged sectional view taken along line N-N of fig. 7.

As shown in fig. 1 to 8, a wall-mounted air conditioning indoor unit according to an embodiment of the present invention may generally include a cabinet 10 and a hood panel 20.

The casing 10 is provided with an air outlet 12 for discharging the air flow from the casing 10 to the room. The air supply flow can be cold air produced by the wall-mounted air conditioner indoor unit in a refrigeration mode, hot air produced in a heating mode, fresh air introduced in a fresh air mode, purified air produced in a purification mode and the like. The cabinet 10 may be a transversely extending elongated structure as a whole.

The air guide hood plate 20 is disposed outside the air outlet 12 to define an air guide passage 21 with an outer circumferential surface of the cabinet 10. That is, the air guide cover plate 20 is parallel or nearly parallel to the outer peripheral surface of the casing 10, and a space between the two forms the air guide passage 21. The air guide passage 21 is used to guide the air flow flowing out from the air outlet 12 to flow upward and/or downward along the outer circumferential surface of the casing 10. That is, after the airflow (for example, cold air, hot air, fresh air, or purified air) is blown out from the outlet 12 of the casing 10, the airflow is guided by the inner wall of the air guide cover plate 20 and then blown out upward and/or downward along the outer circumferential surface of the casing 10. The upward and/or downward blowing here means: the blowing air flow can be blown out only upwards, or only downwards, or both upwards and downwards. Fig. 1 to 5 show the blowing air flow blowing upward, fig. 6 to 8 show the blowing air flow blowing downward, and fig. 13 shows a configuration in which the blowing air flow can be simultaneously blown upward and downward.

Because the air current of supply air is close to the peripheral face of the casing 10 and flows upwards or downwards, the wall attachment effect (also called attachment effect) can be formed, thereby the air current can smoothly reach the roof or the ground along the peripheral face of the casing 10, and the cooling or heating effect of the wall-mounted air conditioner indoor unit is better. Meanwhile, the discomfort of the human body caused by cold air or hot air blowing can be avoided.

The air guide plate 20 has a ventilation portion 209, in other words, the ventilation portion 209 is a part of the air guide plate 20. Part of the blowing air flow in the air guiding passage 21 passes through the air penetration portion 209 and blows to the outside of the air guiding cover 20. The ventilating part is 209, so that the whole air supply airflow is prevented from flowing upwards or downwards along the casing 10, and a part of air supply airflow is blown outwards through the ventilating part 209, so that the air supply direction of the air conditioner is more diversified, the air supply airflow is diffused more quickly, the indoor temperature is changed more uniformly, and the human body feels more comfortable. The ventilation aperture of the ventilation part 209 can be designed to make the flow rate of the air flow passing through the ventilation part lower, so as to form a breeze effect and improve the comfort of the human body.

Referring to fig. 1 to 5, the ventilation portion 209 may be a grid, and the air flow is blown out through each of the openings of the grid. The hollow holes of the grating floor can be designed to be more compact, so that the breeze effect is better. In addition, the ventilation portion 209 may be formed in a hole plate shape, that is, a plurality of fine air diffusing holes may be formed in the air guide cover plate 20 to discharge a fine air flow to the outside.

In some embodiments, the area of the outer peripheral surface of the casing 10 through which the supply airflow flows may be a flat surface, so as to facilitate the supply airflow to better fit the outer peripheral surface of the casing 10. For example, as shown in fig. 1, in the case where the air outlet 12 is opened at the front side of the casing 10, the front surface of the casing 10, that is, the outer peripheral surface through which the fresh air flows, may be a flat surface.

In some embodiments, as shown in fig. 1 and 8, the air deflection cover plate 20 may be mounted to the cabinet 10 to be movable up and down in a translational manner. In this case, the air guide cover plate 20 is a vertical plate. The air guide hood panel 20 has a partition 23 projecting from the inner surface thereof toward the outer peripheral surface of the casing 10. The partition 23 is used to partition the air guide passage 21 into an upper passage 212 opening upward and a lower passage 214 opening downward. The wind deflector panel 20 is configured to: can move to a position where the lower channel 214 is opposite to the air outlet 12, so that the air supply flow is guided downwards by the lower channel 214, as shown in fig. 6 to 8; or to a position where the upper channel 212 is opposite to the air outlet 12, so that the air flow is guided upward by the upper channel 212, as shown in fig. 1 to 4.

Therefore, the wall-mounted air conditioner indoor unit has an upper blowing mode and a lower blowing mode for selection, and the refrigeration and heating effects are obviously improved. For example, when the air conditioning heat requires the down blowing mode to be operated, the air guide hood panel 20 is moved to guide the flow of the supply air downward through the lower duct 214, as shown in fig. 8. When the air conditioner cooling requires the up-blowing mode, the air guide cover plate 20 is moved to guide the air flow upward through the upper duct 212, as shown in fig. 4. Of course, the air guide hood panel 20 may be configured to be movable to a position (not shown), where the partition 23 is located at the middle of the outlet 12 in the vertical direction (i.e., at a position between fig. 4 and 8), so as to guide a part of the supplied air flow from each of the lower duct 214 and the upper duct 212, so that the wall-mounted air conditioning indoor unit supplies air in two directions, i.e., up and down, at the same time, so as to increase the air conditioning speed.

The ventilation portion 209 may be located above the partition 23 to allow the air flow in the upper duct 212 to blow to the outside of the fan guard plate 20 through the ventilation portion 209, as shown in fig. 5. That is, when the air conditioner is used for refrigeration, the cold air has greater stimulation to the human body, the ventilation part 209 is particularly utilized to disperse the air outwards, so that the cold air can be diffused more quickly, and a breeze cold air flow is formed, so that the human body is more comfortable. When the air conditioner heats, the user is more concerned about the effect of blowing the hot air downwards, and the ventilation part 209 does not play a role, so that the hot air is blown downwards under the full force, and the foot warming effect is achieved as soon as possible.

In some embodiments, as shown in fig. 1-8, the ventilation area 209 may be adjacent to the top edge of the wind deflector panel 20. The ventilation portion 209 is formed in a strip shape extending along the top edge of the air guide shroud panel 20. Therefore, the effect of upward blowing of cold air is prevented from being damaged because cold air flows out through the ventilation part due to the ventilation part 209.

In some embodiments, as shown in fig. 4 and 5, the partition 23 has a tip 230 adjacent to the outer circumferential surface of the casing 10. The tip 230 is adjacent to the outer circumferential surface of the casing 10, and can be made to fit with the outer circumferential surface of the casing 10. When the air guide cover plate 20 is at the upward blowing position, the sealing performance between the partition part 23 and the outer peripheral surface of the casing 10 is better, and the downward leakage of the air flow is avoided; when the air guide hood plate 20 is at the down-blowing position, the sealing performance between the partition portion 23 and the outer peripheral surface of the casing 10 is improved, and the upward leakage of the air flow is avoided. Of course, if the tip 230 is too close to the outer surface of the casing 10, when the cowl panel 20 moves up and down, the tip 230 may rub against the outer surface of the casing 10 to generate a loud noise. To avoid this noise, the tip 230 may be spaced from the outer surface of the casing 10.

Referring to fig. 4 and 5, the upper surface 231 of the partition 23 is an inward concave curved surface starting from the tip 230, extending in a direction away from the casing 10 (in the embodiment shown, forward), and gradually inclining upward, and being tangent to the inner side surface of the rest of the wind deflector plate 20. Similarly, the lower surface 232 of the partition 23 is a concave arc surface starting from the tip 230, extending in a direction away from the casing 10 and gradually inclining downwards, and tangent to the inner side surface of the rest of the air guide hood plate 20. In this way, when the blowing air flow is blown out from the outlet 12 and then turns upward or downward, the blowing air flow gradually turns along the upper surface or the lower surface of the partition 23, and the process is more gentle, and the wind loss and the noise are less.

When the air guide hood panel 20 is in the upper blow-molding mode, the tip 230 of the partition portion 23 may be positioned opposite to the lower edge of the air outlet 12, so that the upper surface 231 of the partition portion 23 is connected to the lower wall of the air duct 40, referring to fig. 4. Moreover, since the upper surface 231 of the partition 23 is a concave arc surface, the upper surface 231 corresponds to an extension of the lower wall of the air duct 40, so that the air flow flowing out of the air duct 40 enters the guiding range of the partition 23 smoothly and with low resistance.

Similarly, when the wind deflector panel 20 is in the down-blowing mode, the tip 230 of the partition 23 may be opposite to the upper edge of the outlet 12, so that the lower surface 232 of the partition 23 is in contact with the upper wall of the wind tunnel 40, as shown in fig. 8. Since the lower surface 232 of the partition portion 23 is a concave arc surface, the lower surface 232 is equivalent to an extension of the upper wall of the air duct 40, so that the air flow flowing out of the air duct 40 smoothly enters the guiding range of the partition portion 23 with low resistance.

In some embodiments, as shown in fig. 1 to 8, the front surface of the casing 10 may be a vertical surface (a part of the front surface of the casing 10, that is, the outer peripheral surface of the casing 10) as a whole, and specifically may be a vertical plane or a curved surface such as an arc surface whose axis extends vertically. The outlet 12 may be opened at a lower portion of the front surface of the cabinet 10. The outlet 12 may be more specifically an elongated shape having a length direction parallel to the transverse direction of the cabinet 10.

Referring to fig. 5, the ratio of the distance (de) from the lower edge d of the outlet 12 to the bottom e of the front surface of the housing 10 to the width (cd) of the outlet 12 is greater than 1/2, i.e. de/cd > 1/2, preferably greater than 3/4. Thus, when the wall-mounted air conditioner indoor unit operates in the down-blowing mode, the front surface of the casing 10 below the lower edge of the air outlet 12 has a sufficient length to guide the air flow to flow downwards, thereby improving the wall attachment effect. In addition, the distance from the separating portion 23 to the bottom end of the wind guide cover plate 20 may be greater than the distance from the separating portion 23 to the top end of the wind guide cover plate 20 (specifically, the tip 230 of the separating portion 23 may be used as a measurement reference), that is, the separating portion 23 is located on the upper portion of the wind guide cover plate 20, so as to better guide the air to flow downwards and blow in the downward blowing mode, and make up for the defect that the guiding distance (i.e., de) of the front surface of the chassis on the lower side of the air outlet 12 is short.

Referring to fig. 1 to 3, for the solution that the air outlet 12 is opened on the front surface of the casing 10, the air guiding cover plate 20 may include a front section 201 and two bending sections 202. The front section 201 is located in front of the air outlet 12, and is mainly used for guiding the air flow. Two bent sections 202 extend rearward from both lateral ends of the front section 201 to be mounted to the end caps of both lateral sides of the casing 10, respectively. In this embodiment, the wind deflector 20 is connected to the transverse end cover 106 of the casing 10 through the two bent sections 202, so that the front side of the wind deflector 20 has a more complete appearance, and a driving mechanism does not need to be disposed on the front side of the casing 10 to occupy an air outlet space. Moreover, each bent section 202 is provided with a wind shield 2021 extending towards the end cover 106 for blocking the backward flow of the supply air flow, so that the supply air flow can better flow upwards or downwards, and the backward flow diffusion can be prevented from affecting the upward and downward wind force.

Fig. 9 is a schematic exploded view of the wall-mounted air conditioning indoor unit of fig. 1; fig. 10 is a partial, rear elevational view of the wall-mounted air conditioning indoor unit of fig. 1; FIG. 11 is a schematic view of the engagement of the end cap with the rack and pinion mechanism;

fig. 12 is a schematic exploded view of the structure shown in fig. 11.

As shown in fig. 9 to 12, at least one end cover of the casing 10 is provided with a rack and pinion mechanism for driving the wind deflector plate 20 to move up and down, so as to switch between the up-blowing position and the down-blowing position. Preferably, a rack and pinion mechanism is disposed on each of the two end caps 106 to drive the two transverse ends of the wind deflector plate 20 to move up or down synchronously, so that the movement is more stable and smooth.

Each of the rack and pinion mechanisms includes a motor 71, a pinion 72 and a rack 73 that mesh with each other. The motor 71 is disposed inside the end cap 106. The gear 72 is mounted on the motor 71, the rack 73 is disposed inside the end cover 106 in a vertically movable manner, and a portion of the rack extends out of the end cover 106 through a long vertical offset hole 1061 formed in the end cover 106 so as to be connected to the wind deflector plate 20. When the motor 71 drives the gear 72 to rotate, the gear 72 drives the rack 73 to move up and down, so as to drive the air guide hood panel 20 to move up and down.

Specifically, as shown in fig. 11 to 12, a mounting member 107 may be fixed to an inner wall of the end cap 106. The mounting member 107 is screwed to a plurality of mounting portions 1062 provided on an inner wall of the end cap 106 via a plurality of mounting portions 1072 provided thereon. The mounting 107 is formed with two spaced and vertically extending slide rails 1071. Two sliding grooves 731 having opposite opening directions are formed at both ends of the rack 73 in the width direction, and each sliding groove 731 is matched with one sliding rail 1071 to allow the rack 73 to slide up and down along the mounting member 107. That is, the mount 107 functions to form a slide rail 1071 on which the rack gear 73 is mounted so as to be movable in translation up and down.

A bracket 108 is also secured to the inner wall of the end cap 106 for mounting the motor 71. The rack 73 is sandwiched between the gear 72 and the mount 107, or the gear 72 is located on the side of the mount 107 facing away from the inner wall of the end cap 106. The side of the rack 73 facing the gear 72 is formed with teeth to engage with the gear 72, and a rib 732 is formed to protrude outward from the side facing the end cap 106, and the rib 732 extends out of the end cap 106 through the vertical strip relief hole 1061 and is connected to the air guide cover plate 20, for example, by a screw. Specifically, the convex strip 732 may be connected to the wind blocking portion 2021. Thus, the wind blocking portion 2021 is used for connecting the protruding strips 732 and blocking the airflow, and the design is very ingenious.

In this embodiment, the mounting member 107 and the bracket 108 are provided on the inner wall of the end cover 106, so that the main structure of the rack and pinion mechanism is mounted inside the end cover 106, which does not affect the appearance of the wall-mounted air conditioning indoor unit. And the air guide cover plate 20 positioned outside the end cover 106 is connected by arranging the vertical strip abdicating hole 1061 on the end cover 106, so that the design is very simple and reasonable.

As shown in fig. 4, the top of the casing 10 is provided with an air inlet 11, an air duct 40 is disposed inside the casing 10, and an outlet of the air duct 40 is communicated with the air outlet 12. A cross-flow fan 50 having an axis extending in a lateral direction is provided at an inlet of the air duct 40. The three-stage heat exchanger 30 surrounds the crossflow blower 50. When the wall-mounted air conditioner indoor unit operates in a cooling mode or a heating mode, indoor air enters the interior of the casing 10 through the air inlet 11, exchanges heat with the three-section heat exchanger 30, is finally sucked into the air duct 40 by the cross-flow fan 50, and flows towards the air outlet 12.

Fig. 9 shows a more specific structure of the wall-mounted type air conditioning indoor unit. As shown in fig. 9, the casing 10 includes a front panel 101, a front lower panel 102, a bottom plate 103, a cover 104, a skeleton 105, and two end caps 106. The front panel 101 and the front lower panel 102 are connected to form the front part of the casing 10, and the outlet 12 is opened in the region where they are connected. The bottom plate 103 constitutes the bottom of the cabinet 10. The casing 104 and the frame 105 are disposed at the rear side of the front panel 101 to form the air inlet 11 and the air duct 40. The two end caps 106 constitute both lateral end portions of the cabinet 10. A motor 51 is mounted to an end of the crossflow blower 50 to drive the crossflow blower 50 to rotate. The motor 51 is mounted on a motor mount 52. An electric cabinet 53 is arranged on one side of the motor base 52 in the transverse direction. The air outlet 12 is provided with a swing blade assembly 60 to adjust the left and right air outlet directions of the air outlet 12. Sensor 80 is installed to horizontal one side top of bottom plate 103 to be used for detecting the indoor condition, thereby according to the indoor condition (detect temperature, human condition etc.), thereby carry out intelligent control to empty regulation control parameter (wind speed, wind direction, temperature etc.).

Of course, the present invention is not limited to the configuration of the cabinet itself and the structure and form of each member inside the cabinet. Namely, the wall-mounted air conditioner indoor unit can also selectively adopt other forms of heat exchangers, fans and air ducts.

Fig. 13 is a schematic cross-sectional view of a wall-mounted air conditioning indoor unit according to another embodiment of the present invention.

As shown in fig. 13, the difference between this embodiment and the embodiment shown in fig. 1 to 12 is that in this embodiment, the wind deflector 20 is fixedly installed on the casing 10, and the partition 23 is located at the middle position of the vertical direction of the air outlet 12, so that both the lower duct 214 and the upper duct 212 are communicated with the air outlet 12, and the air flow is guided by the lower duct 214 and the upper duct 212, so that the wall-mounted air conditioning indoor unit can simultaneously blow air in both the upper and lower directions, thereby increasing the air conditioning speed.

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.