CN113310122A - Wall-mounted air conditioner indoor unit - Google Patents

Abstract

The invention provides a wall-mounted air conditioner indoor unit, which comprises a plurality of air deflectors arranged along the length direction of a shell of the wall-mounted air conditioner indoor unit so as to guide the air supply airflow output by the shell, wherein each air deflector comprises: the air deflector body is rotatably arranged on the shell and is provided with a through drainage port; and the air raising part is convexly arranged on the first side surface of the air deflector body facing the air supply airflow and is configured to change the airflow direction when the air supply airflow flows through the first side surface so as to form negative pressure at the first side surface, so that the ambient air at the other side of the air deflector body is driven to be converged into the air supply airflow through the drainage port. In the wall-mounted air conditioner indoor unit, the air deflector has the air guiding function and the air guiding and mixing function, so that the air supply flow is more comfortable.

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

With the development of the times and the progress of technology, users not only expect faster cooling and heating speeds of air conditioners, but also pay more attention to the comfort performance of the air conditioners.

However, in order to achieve more rapid cooling and heating, it is inevitable to supply a large amount of air. However, when cold air or hot air with an excessive wind speed is directly blown to a human body, discomfort of the human body is inevitably caused. The long-term cold wind blowing of human body can also cause air conditioning diseases.

Therefore, how to realize comfortable air supply of the air conditioner becomes a technical problem to be solved urgently in the air conditioner industry.

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 enable the air deflector to have the air guiding function and the air guiding and mixing function so as to enable air supply airflow to be more comfortable.

The invention further aims to enable the air deflector to have a wind raising function so as to achieve the purpose of raising and blowing cold wind.

In particular, the present invention provides a wall-mounted air conditioning indoor unit, comprising a plurality of air deflectors arranged along a longitudinal direction of a casing thereof for guiding a supply airflow output from the casing, each air deflector comprising:

the air deflector body is rotatably arranged on the shell and is provided with a through drainage port; and

the air raising part is arranged on the first side face, facing the air supply flow, of the air deflector body in a protruding mode, and is configured to change the direction of the air flow when the air supply flow flows through the first side face, so that negative pressure is formed at the first side face, and therefore ambient air on the other side of the air deflector body is driven to be converged into the air supply flow through the drainage port.

Optionally, the scoop includes a scoop plate that is progressively further away from the first side in the airflow direction from the airflow upstream edge of the drainage opening.

Optionally, the projection of the wind scoop onto the first side covers at least the drainage opening.

Optionally, the end of the scoop plate in the direction of airflow exceeds the drainage opening to define with the first side a drainage channel in communication with the drainage opening.

Optionally, the wind pumping part further comprises a plurality of connecting ribs arranged at intervals along the parallel direction of the rotation axis of the wind deflector body, and each connecting rib connects the wind pumping plate and the wind deflector body.

Optionally, the projection of the wind-lifting plate on the first side surface is located within the range of the wind deflector body.

Optionally, the wind-lifting plate is an arc-shaped plate with a central axis parallel to the rotation axis of the wind deflector body and a convex surface facing the wind deflector body.

Optionally, the air deflector body is a long strip horizontally arranged in the length direction; the rotation axis direction of the air deflector body is parallel to the length direction of the air deflector body; and the length direction of the drainage port is parallel to the length direction of the air deflector body.

Optionally, the housing is provided with an air outlet for outputting air flow; and a plurality of air deflectors are arranged at one air outlet.

Optionally, each air deflector further comprises at least one rotating arm, one end of the rotating arm is connected with a driving device located inside the shell, and the other end of the rotating arm is connected with the air deflector body, so that the air deflector body is driven by the driving device to rotate around the first end of the rotating arm upwards to close the air outlet or rotate downwards to open the air outlet; and an inner guide plate is also arranged at the air outlet and is positioned at the inner side of the air deflector.

The wall-mounted air conditioner indoor unit is provided with the plurality of air deflectors which are arranged along the length direction of the shell, each air deflector is independently controlled, the air deflection angles are not affected with each other, the partition adjustment of air supply flow is realized, different requirements of users in different indoor areas are met, and the air supply control of the air conditioner is more refined. For example, the left air guide plate may be configured to blow air upward in the covered area, and the right air guide plate may be configured to blow air downward in the covered area.

In the invention, the air deflector has the function of mixing air. When the air flow flows through the first side surface of the air deflector body, the air blowing part which is arranged on the air deflector body and protrudes out of the first side surface changes the flowing direction of the air flow, so that the air flow is far away from the first side surface of the air deflector body, and the air flow density at the first side surface of the air deflector body is reduced to form negative pressure. Under the suction of the negative pressure area, ambient air on the second side of the air deflector body enters the negative pressure area through a drainage port formed in the air deflector body and then is converged into air supply airflow to form an air mixing effect. When the air conditioner is used for refrigeration, the temperature of the air supply airflow can be properly increased by mixing the ambient air; when the air conditioner heats, the temperature of the air supply flow can be properly reduced by mixing the ambient air, so that the air supply flow is more comfortable.

The invention realizes the air mixing function only by opening the air deflector body and additionally arranging the air raising part, and has the advantages of ingenious design, simple structure and lower cost. In addition, other structures of the wall-mounted air conditioner indoor unit do not need to be changed, and the wall-mounted air conditioner indoor unit is very beneficial to mass production and popularization.

Further, in the present invention, the wind deflector causes the wind-raising portion to include a wind-raising plate which is gradually distant from the first side surface in the airflow direction from the airflow upstream edge of the drainage opening. When the air deflector conducts air, the air supply airflow can be blown out by being lifted up under the action of the air lifting plate, a negative pressure area is generated, and the upward blowing angle (the included angle between the upward air outlet direction and the vertical direction) of the air supply airflow is smaller, so that a human body can be better avoided.

Furthermore, according to the invention, the tail end of the wind raising plate along the airflow direction exceeds the drainage port by the wind guide plate, so that a drainage channel communicated with the drainage port is defined by the wind guide plate and the first side surface, the flowing direction of ambient air can be guided, the included angle between the ambient air and the air supply airflow is smaller, and the ambient air and the air supply airflow are mixed more softly. The problem that the noise is too large and the like caused by the fact that ambient air directly enters air supply airflow through the drainage port vertically is solved.

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 air conditioner indoor unit according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of a wall-mounted air conditioning indoor unit according to an embodiment of the present invention;

fig. 3 is a schematic view illustrating the structure of two air deflectors in the wall-mounted air conditioning indoor unit of fig. 1;

FIG. 4 is a schematic view of the deflector of FIG. 3 from another perspective;

FIG. 5 is a cross-sectional view of the air deflection plate of FIG. 3;

fig. 6 is a schematic view illustrating a state in which the air deflector of the wall-mounted air conditioning indoor unit of fig. 2 is further opened;

fig. 7 is a schematic structural 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 7. The direction of the supply air flow is indicated by the solid arrows and the direction of the ambient air flow is indicated by the hollow arrows.

As shown in fig. 1 to 5, a wall-mounted air conditioning indoor unit according to an embodiment of the present invention may generally include a casing 10 and a plurality of air deflectors 50 arranged along a length direction of the casing 10 (i.e., an X direction indicated in fig. 1), for example, two air deflectors are provided in fig. 1. The air flow blown out from the inside of the casing 10 is the supply air flow. When the air conditioner is used for refrigerating, the air supply flow is cold air; when the air conditioner heats, the air supply flow is hot air. The plurality of air deflectors 50 are used to guide the air flow output from the casing 10. Each air deflector 50 corresponds to an area within the room, and each air deflector 50 is matched with one driving device 70 to be controlled independently. The air guide angles of the air guide plates are adjusted respectively, so that the air supply airflow can be adjusted in a partitioned mode, different requirements of users in different indoor areas are met, and the air supply control of the air conditioner is more refined. For example, as shown in fig. 1, the left air guiding plate can be used for blowing air upwards to the covered area, and the right air guiding plate can be used for blowing air downwards to the covered area. The wind guiding angle of each wind guiding plate 50 can be operated by a user, for example, by a remote controller. And a human body detection device can be arranged for detecting information such as the area where the human body is located, the surface temperature and the like, so that the controller can acquire the detection information and control the air deflector corresponding to the area according to a preset program, thereby realizing the air supply effects of directly blowing the human body by the air supply airflow, avoiding the human body and the like.

The number of the wind deflectors 50 may be two as shown in fig. 1 to 3. It is also possible to have three deflectors 50, as shown in fig. 7. Of course, the number of the air deflectors can also be four or more.

As shown in fig. 1 and 2, an air outlet 12 is formed on the housing 10 for outputting an air flow. A plurality of air deflectors 50 are provided at one air outlet 12. That is, one outlet 12 corresponds to a plurality of air deflectors 50. In some alternatives, a plurality of air outlets may be provided, such that each air outlet corresponds to one air deflector, or each air deflector corresponds to a plurality of air outlets.

As shown in fig. 2, the wall-mounted air conditioning indoor unit may include an evaporator 20, a blower 30, a duct 40, and a swing vane 60. The evaporator 20 is used for exchanging heat with air entering the housing 10 from the air inlet 11 to form a supply air flow. The inlet of the air duct 40 faces the evaporator 20, and the outlet communicates with the air outlet 12. The fan 30 may be a cross-flow fan disposed at an inlet of the air duct 40 to promote air flow from the evaporator 20 to the air outlet 12. The swing blade 60 is used for swinging wind left and right.

The structure of the air guide plate 50 in the wall-mounted type air conditioning indoor unit will be described.

As shown in fig. 2 to 5, the wind deflector 50 may generally include a wind deflector body 51 and a wind-raising portion 52. The air deflector body 51 is adapted to be rotatably mounted to the housing 10 (about the x-axis, which is shown in the figures).

The air deflector body 51 is provided with a through drainage port 515, and the drainage port 515 penetrates through two side surfaces of the air deflector body 51. The side of the air deflector body 51 facing the supply air flow is a first side, and the surface thereof is a first side surface 511; the side facing away from the supply airflow is the second side, and the surface is the second side 512. Alternatively, when the air deflector body 51 closes the air outlet 12, a side thereof facing the inside of the air outlet 12 is a first side, and a side thereof facing the outside of the casing 10 is a second side.

The wind-raising portion 52 is protruded from the first side 511 of the wind deflector body 51. The air-blowing portion 52 is configured to change the direction of the air flow when the air flow passes through the first side surface 511, so as to form a negative pressure at the first side surface 511, thereby bringing the ambient air at the second side of the air deflector body 51 into the air flow through the drainage opening 515.

That is, since the wind-raising portion 52 protrudes outward from the first side 511 of the air deflector body 51, it can block the supply airflow and force it not to flow smoothly along the first side 511, but to move away from the first side 511, so that the airflow density at the first side 511 of the air deflector body 51 is reduced, and a negative pressure region is formed (the region S in fig. 2 roughly indicates the range of the negative pressure region). Under the suction of the negative pressure region, the ambient air on the second side of the air deflector body 51 enters the negative pressure region through the drainage port 515 formed on the air deflector body 51, and then is converged into the air supply flow, so as to form an air mixing effect. When the air conditioner is used for refrigeration, ambient air is mixed into the air supply airflow, so that the temperature of the air supply airflow can be properly increased; when the air conditioner heats, the temperature of the air supply airflow can be properly reduced by mixing the ambient air, so that the air supply airflow is more comfortable, and the comfortable air supply of the air conditioner is realized.

It will be appreciated that the connection point of the scoop 52 to the deflector body 51 is located upstream of the flow of the vent 515 so that the negative pressure region created thereby can only draw ambient air within the vent 515.

The invention realizes the air mixing function only by opening the air deflector 50 and additionally arranging the air raising part 52, and has the advantages of ingenious design, simple structure and lower cost. In addition, other structures of the wall-mounted air conditioner indoor unit do not need to be changed, and the wall-mounted air conditioner indoor unit is very beneficial to mass production and popularization.

The air deflector body 51 is defined as a windward end (B end) corresponding to the upstream end of the supply airflow, and as an air-out end (a end) corresponding to the downstream end of the supply airflow. The flow direction of the blowing air flow on the first side surface 511 of the air deflector body 51 is towards the air outlet end. The upstream edge of the flow guide opening 515 refers to the edge of the flow guide opening 515 close to the windward end of the air deflector body 51, and the other edge of the flow guide opening 515 opposite to the upstream edge (C edge) of the flow guide opening is the downstream edge (D edge) of the flow guide opening, as shown in fig. 4 and 5.

In some embodiments, the wind scooping portion 52 may include a wind scooping plate 521 gradually distant from the first side surface 511 in the airflow direction from the airflow upstream edge (C-side) of the drainage opening 515. Or, the wind-lifting plate 521 extends from the first side surface 511, and the extending direction is toward the downstream side of the blowing air flow, and the wind-lifting plate gradually gets away from the first side surface in the extending process. Under the guidance of the wind-up plate 521, the supply airflow gradually moves away from the first side 511 of the wind deflector 50, and a negative pressure region is generated at the first side 511. The embodiment makes the starting end of the wind-lifting plate 521 directly connected with the edge of the drainage port 515, so that the connection transition section of the wind-lifting plate and the drainage port is smoother, and the air flow is better guided.

When the air guide plate 50 performs the air mixing function, the first side 511 is disposed upward. Therefore, the wall-mounted air conditioner indoor unit can take the air outlet angle and the air volume into consideration. For example, in order to improve the air blowing comfort, when the wall-mounted air conditioning indoor unit cools, it is generally desirable that the air guide plate guides the cool air to blow out as vertically upward as possible. However, when the air deflector of the conventional wall-mounted air conditioner indoor unit rotates to an upward blowing angle close to the limit, the included angle between the air deflector and the plane of the air outlet is too small, that is, the opening degree is very small (the opening degree of the air deflector refers to the degree of opening the air outlet, and when the air deflector completely closes the air outlet, the opening degree is zero, when the air deflector completely opens the air outlet (refer to fig. 6), the opening degree is 100%, the air outlet is most smooth), the air deflector can seriously shield the air outlet, and the air volume becomes very small. This limits the wind guiding angle range of the wind guiding plate. Especially, when the air is guided vertically, the air guiding angle and the air volume are difficult to be considered simultaneously.

In the embodiment of the present invention, the wind raising plate 521 can raise and guide wind. Therefore, when the wall-mounted air conditioner indoor unit operates in a cooling mode, the air deflector body 51 does not need to be rotated to be in a state of being too close to the vertical state (namely, a state of closing the air outlet), so that the air deflector 50 is ensured to have a large enough opening degree, and the air volume is prevented from being influenced. Therefore, the wall-mounted air conditioner indoor unit has both air supply angle and air volume.

As shown in fig. 5, the projection of the air-lifting plate 521 on the first side 511 at least covers the air-guiding opening 515, and the air-lifting plate 521 can avoid the problem that the ambient air directly enters the air-supply airflow vertically through the air-guiding opening 515, which causes excessive noise, etc. Further, the end (E-end) of the wind-lifting plate 521 in the airflow direction may be positioned beyond the drainage port 515 (referring to the edge D of the downstream airflow edge of the drainage port 515) to define a drainage channel 516 communicating with the drainage port 515 with the first side 511. The flow direction of the ambient air is guided by the flow guide channel 516, so that when the ambient air and the supplied air are combined, the included angle between the two air flows is smaller, and the air is mixed more softly.

The projection of the wind-lifting plate 521 on the first side 511 can be located within the range of the wind deflector body 51. In other words, the end (E end) of the wind-raising plate 521 is retracted a distance in the upstream direction of the blowing air flow compared with the wind-out end (a end) of the wind deflector body 51. It can also be understood that, by making a perpendicular line to the first side 511 of the deflector body 51 at the end of the deflector 521, the foot will fall on the first side 511 itself rather than on the extension of the first side 511. This allows the section of the air deflector body 51 protruding from the air deflector 521 to guide and block the ambient air flowing out of the flow guiding channel 516 to a certain extent, so that it can be better mixed with the supply air flow. The air deflector body 51 can also avoid the contact between the air deflector 521 and the upper edge of the air outlet 12 when the air outlet 12 is closed.

As shown in fig. 3 and 4, the wind-lifting portion 52 may further include a plurality of connection ribs 522 arranged at intervals along the parallel direction of the rotation axis of the wind deflector body 51, and each connection rib 522 connects the wind-lifting plate 521 and the wind deflector body 51 to realize the structural connection. In addition, the connecting ribs 522 can also split the ambient air, so that the air flow is softer. It will be appreciated that the ribs 522 are located on the downstream side of the supply air flow relative to the vents 515. In other words, the ribs 522 divide the drainage channel 516 into a plurality of small channels. The wind-raising portion 52 and the wind deflector body 51 can be an integral piece, so as to be convenient for processing and manufacturing.

Two of the plurality of connection ribs 522 may be connected between both ends of the wind scooper 521 in the rotational axis direction of the wind scooper body 51 and the first side surface 511 to close the interval between the both ends of the wind scooper 521 and the first side surface 511. This prevents the air flow from flowing in the direction of the rotational axis of the air deflection plate body 51, thereby preventing the occurrence of adverse eddy currents and noise.

As shown in fig. 2 and 5, the wind-lifting plate 521 can be a curved plate with a central axis parallel to the rotation axis of the wind deflector body 51 and a convex surface facing the wind deflector body 51, so as to better lift and guide the wind flow.

As shown in fig. 3 and 4, the air deflector body 51 may be a strip shape with a length direction horizontally arranged, and a rotation axis direction of the air deflector body 51 may be parallel to the length direction of the air deflector body 51. The drainage opening 515 is long and parallel to the length direction of the air deflector body 51, so that the ambient air is basically mixed into all parts of the air deflector body 51 in the length direction, and the air mixing amount is larger. In addition, the entire air deflector body 51 may be a long arc plate with a concave first side surface 511. Of course, the entire air guide plate body 51 may be a flat plate.

In some alternative embodiments, the scoop 521 may not completely cover the vent 515. Even more, the projection of the wind-lifting plate 521 on the first side 511 can be made to fall on the upstream area of the drainage opening 515, and not on the drainage opening 515 at all. Alternatively, the wind-blowing portion 52 is a convex strip protruding from the first side surface 511, and the cross section of the convex strip is arc-shaped or triangular. The specific structure will not be described in detail.

In some embodiments, as shown in fig. 2 and 3, the air deflection plate 50 further includes at least one rotating arm 53 having one end connected to the driving device 70 positioned inside the casing 10 and the other end connected to the air deflection plate body 51. Under the driving of the driving device 70, the rotating arm 53 drives the air deflector body 51 to rotate around the first end of the rotating arm 53 upwards to close the air outlet 12, or rotate downwards to open the air outlet 12. A plurality of the rotation arms 53 may be provided such that the plurality of rotation arms 53 are arranged at intervals along the length direction of the air deflection body 51. The drive means 70 comprise an electric motor for directly or indirectly driving the rotation arm 53 in rotation.

As shown in fig. 6, the outlet 12 may be located at a lower portion of the front side of the housing 10 and opened forward and downward. The rotating arm 53 is a bent arm with a bent portion and a downward opening. The driving device 70 is installed at the bottom wall of the wind tunnel 40. The purpose of setting up the bent arm is: at each angle of the air deflector 50 opening the air outlet 12, the first side surface 511 faces the air outlet 12, so that the air flow is guided by the first side surface 511, and the second side surface 512 faces away from the air outlet 12 and contacts with the ambient air, thereby facilitating the realization of the air mixing function of the air deflector 50. Moreover, the curved arm is also convenient to rotate the air deflector body 51 to the lower side of the casing 10, so as to completely avoid the air flow blown out from the air outlet 12, i.e. completely open the air outlet 12, and make the air deflector 50 completely not block the air flow.

On the basis, one or more inner guide plates 80 may be further disposed at the air outlet 12, and the inner guide plates 80 are rotatably mounted at the air outlet 12 and located inside the air guide plate 50 for adjusting the up-down air outlet direction of the air outlet 12. That is, the air guide plate 50 performs more functions of opening and closing the air outlet and mixing the air, and the inner guide plate 80 performs the functions of guiding the air and swinging the air upward and downward.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims (10)

1. An indoor unit of a wall-mounted air conditioner, comprising a plurality of air deflectors arranged along a longitudinal direction of a casing thereof for guiding a supply airflow output from the casing, each of the air deflectors comprising:

the air deflector body is rotatably arranged on the shell and is provided with a through drainage port; and

the air raising part is convexly arranged on the first side surface of the air deflector body facing the air supply airflow, and is configured to change the airflow direction when the air supply airflow flows through the first side surface, so that negative pressure is formed at the first side surface, and the ambient air on the other side of the air deflector body is driven to converge into the air supply airflow through the drainage port.

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

The air raising portion comprises an air raising plate which is gradually far away from the first side face from the upstream edge of the air flow of the drainage port along the air flow direction.

3. The wall-mounted indoor unit of air conditioner of claim 2, wherein

The projection of the wind-raising plate on the first side face at least covers the drainage port.

4. The wall hanging indoor unit of air conditioner of claim 3, wherein

The tail end of the wind raising plate along the airflow direction exceeds the drainage port so as to define a drainage channel communicated with the drainage port with the first side face.

5. The wall-mounted indoor unit of air conditioner of claim 4, wherein the air conditioner further comprises a heat exchanger

The wind raising part further comprises a plurality of connecting ribs which are arranged at intervals along the parallel direction of the rotation axis of the wind deflector body, and each connecting rib is connected with the wind raising plate and the wind deflector body.

6. The wall hanging indoor unit of air conditioner of claim 3, wherein

The projection of the wind-raising plate on the first side surface is positioned in the range of the wind deflector body.

7. The wall-mounted indoor unit of air conditioner of claim 2, wherein

The central axis of the wind raising plate is parallel to the rotation axis of the wind deflector body, and the convex surface of the wind raising plate faces the arc-shaped plate of the wind deflector body.

8. The wall-mounted indoor unit of air conditioner of claim 1, wherein

The air deflector body is a long strip horizontally arranged in the length direction;

the direction of the rotation axis of the air deflector body is parallel to the length direction of the air deflector body; and is

The drainage port is a long strip with the length direction parallel to the length direction of the air deflector body.

9. The wall-mounted indoor unit of air conditioner of claim 1, wherein

The shell is provided with an air outlet for outputting the air supply airflow; and is

The air deflectors are arranged at the air outlet.

10. The wall hanging indoor unit of air conditioner of claim 9, wherein

Each air deflector further comprises at least one rotating arm, one end of each rotating arm is connected with a driving device positioned in the shell, and the other end of each rotating arm is connected with the air deflector body, so that the air deflector body is driven by the driving device to rotate upwards around the first end of each rotating arm to close the air outlet or rotate downwards to open the air outlet; and is

The air outlet is also provided with an inner guide plate which is positioned on the inner side of the air deflector.

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