Wall-mounted air conditioner indoor unit

Abstract

The present invention provides a wall-mounted air conditioner indoor unit, comprising a plurality of air guide plates arranged along the length direction of its shell, so as to guide the air supply airflow outputted from the shell, each air guide plate comprising: an air guide plate body, which is used to be rotatably mounted on the shell, and the air guide plate body is provided with a through flow guide port; and a wind raising portion, which is protrudingly arranged on the first side of the air guide plate body facing the air supply airflow, and is configured to change the airflow direction when the air supply airflow flows through the first side, so as to form a negative pressure at the first side, thereby driving the ambient air on the other side of the air guide plate body to merge into the air supply airflow through the flow guide port. In the wall-mounted air conditioner indoor unit of the present invention, the air guide plate has an air guiding function and a flow guiding and mixing air function, so that the air supply airflow is more comfortable.

Description

Technical Field

[0001] The invention relates to the technical field of air conditioning, and in particular to a wall-mounted air-conditioning indoor unit. Background Art

[0002] With the development of the times and the advancement of technology, users not only expect air conditioners to have faster cooling and heating speeds, but also pay more and more attention to the comfort performance of air conditioners.

[0003] However, in order to achieve faster cooling and heating, it is inevitable to supply air with a large air volume. However, when the cold or hot air with too high wind speed blows directly on the human body, it will inevitably cause discomfort to the human body. If the human body is directly blown by cold air for a long time, it will also cause air conditioning disease.

[0004] Therefore, how to achieve comfortable air supply of air conditioners has become a technical problem that needs to be solved urgently in the air conditioning industry. Summary of the invention

[0005] An object of the present invention is to provide a wall-mounted air conditioner indoor unit that overcomes the above problems or at least partially solves the above problems.

[0006] The purpose of the present invention is to enable the air guide plate to have the functions of guiding air and mixing air, so as to make the air supply flow more comfortable.

[0007] A further object of the present invention is to enable the air guide plate to have a wind-raising function so as to achieve the upward blowing of cold air.

[0008] In particular, the present invention provides a wall-mounted air conditioner indoor unit, comprising a plurality of air guide plates arranged along the length direction of its housing, for guiding the air supply airflow output from the housing, each air guide plate comprising:

[0009] The air guide plate body is rotatably mounted on the housing, and a through-flow outlet is provided on the air guide plate body; and

[0010] The wind-raising portion is protrudingly arranged on the first side surface of the air guide plate body facing the supply air flow, and is configured to change the air flow direction when the supply air flow flows through the first side surface to form a negative pressure at the first side surface, thereby driving the ambient air on the other side of the air guide plate body to merge into the supply air flow through the inlet.

[0011] Optionally, the wind raising portion includes a wind raising plate which gradually moves away from the first side surface along the airflow direction from an upstream edge of the airflow guide port.

[0012] Optionally, the projection of the wind-raising plate on the first side at least covers the drainage port.

[0013] Optionally, the end of the wind-raising plate along the airflow direction exceeds the drainage port to define a drainage channel connected to the drainage port with the first side surface.

[0014] Optionally, the wind-raising portion further includes a plurality of connecting ribs arranged at intervals in a direction parallel to the rotation axis of the wind guide plate body, and each connecting rib connects the wind-raising plate and the wind guide plate body.

[0015] Optionally, the projection of the wind-raising plate on the first side is located within the range of the wind guide plate body.

[0016] Optionally, the wind-raising plate is an arc-shaped plate whose central axis is parallel to the rotation axis of the wind guide plate body and whose convex surface faces the wind guide plate body.

[0017] Optionally, the air deflector body is in the shape of an elongated strip with its length direction horizontally arranged; the rotation axis direction of the air deflector body is parallel to the length direction of the air deflector body; and the air guide port is in the shape of an elongated strip with its length direction parallel to the length direction of the air deflector body.

[0018] Optionally, an air outlet is provided on the shell for outputting the air supply airflow; and a plurality of air guide plates are arranged at one air outlet.

[0019] Optionally, each air guide plate also includes at least one rotating arm, one end of the rotating arm is connected to a driving device located inside the shell, and the other end is connected to the air guide plate body, so that under the drive of the driving device, the air guide plate body is driven to rotate upward around the first end of the rotating arm to close the air outlet, or rotate downward to open the air outlet; and an inner guide plate is also installed at the air outlet, which is located on the inner side of the air guide plate.

[0020] The wall-mounted air conditioner indoor unit of the present invention is provided with a plurality of air guide plates arranged along the length direction of the shell, each air guide plate is independently controlled, and the air guide angles do not affect each other, so that the air supply airflow is adjusted in different zones, meeting the different needs of users in different indoor areas, and making the air supply control of the air conditioner more refined. For example, the air guide plate on the left side can be made to supply air upward to the area it covers, and the air guide plate on the right side can be made to supply air downward to the area it covers, etc.

[0021] In the present invention, the air guide plate has an air mixing function. When the supply air flow passes through the first side surface of the air guide plate body, the wind-raising portion protruding from the first side surface provided on the air guide plate body changes the flow direction of the supply air flow, making it away from the first side surface of the air guide plate body, thereby reducing the air flow density at the first side surface of the air guide plate body, forming a negative pressure. Under the attraction of the negative pressure area, the ambient air on the second side of the air guide plate body enters the negative pressure area through the drainage port provided on the air guide plate body, and then merges into the supply air flow, forming a mixed air effect. When the air conditioner is cooling, the mixing of ambient air can appropriately increase the temperature of the supply air flow; when the air conditioner is heating, the mixing of ambient air can appropriately reduce the temperature of the supply air flow, both of which make the supply air flow more comfortable.

[0022] The present invention realizes the air mixing function by only opening the air guide plate body and adding an air raising part, which is very clever in design, very simple in structure and low in cost. Moreover, other structures of the indoor unit of the wall-mounted air conditioner do not need to be modified, which is very conducive to mass production and promotion.

[0023] Furthermore, in the present invention, the wind guide plate makes the wind raising part include a wind raising plate which gradually moves away from the first side surface along the airflow direction from the upstream edge of the airflow of the air guide port. When the wind guide plate guides the air, the air supply airflow can be blown upward under the action of the wind raising plate, which not only generates a negative pressure area, but also makes the upward blowing angle (the angle between the upward air outlet direction and the vertical direction) of the air supply airflow smaller, so as to better avoid the human body.

[0024] Furthermore, in the present invention, the wind guide plate makes the end of the wind lifting plate in the airflow direction exceed the drainage port, so as to define a drainage channel connected with the drainage port with the first side surface, and can guide the flow direction of the ambient air, so that the angle between the ambient air and the supply airflow is smaller, so that the two are mixed more gently, and avoid the ambient air directly passing through the drainage port and vertically entering the supply airflow, causing problems such as excessive noise.

[0025] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0027] Figure 1 is a schematic structural diagram of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention;

[0028] Figure 2 is a schematic cross-sectional view of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention;

[0029] Figure 3 yes Figure 1 A schematic diagram of the structure of two air guide plates in a wall-mounted air conditioner indoor unit is shown;

[0030] Figure 4 yes Figure 3 Another perspective schematic diagram of the air guide plate shown;

[0031] Figure 5 yes Figure 3 A cross-sectional view of the wind deflector shown;

[0032] Figure 6 yes Figure 2The schematic diagram of the state of the indoor unit of the wall-mounted air conditioner shown in FIG. 1 after the air guide plate is further opened;

[0033] Figure 7 It is a structural schematic diagram of a wall-mounted air-conditioning indoor unit according to another embodiment of the present invention. DETAILED DESCRIPTION

[0034] Refer to the following Figures 1 to 7 The wall-mounted air conditioner indoor unit of the embodiment of the present invention is described. In the figure, the wind direction of the air supply airflow is indicated by a solid arrow, and the flow direction of the ambient air is indicated by a hollow arrow.

[0035] like Figures 1 to 5 As shown, the wall-mounted air conditioner indoor unit of the embodiment of the present invention generally includes a housing 10 and a longitudinal direction (i.e., Figure 1 A plurality of air guide plates 50 are arranged in the X direction, for example Figure 1 As shown in the figure, two air guide plates are provided. The airflow blown out from the inside of the housing 10 is the supply airflow. When the air conditioner is cooling, the supply airflow is cold air; when the air conditioner is heating, the supply airflow is hot air. Multiple air guide plates 50 are used to guide the supply airflow output by the housing 10. Each air guide plate 50 corresponds to an area in the room, and each air guide plate 50 is matched with a driving device 70 to be independently controlled. The air guide angles of each air guide plate are adjusted separately, so as to realize the zoned adjustment of the supply airflow, meet the different needs of users in different areas of the room, and make the air supply control of the air conditioner more refined. For example Figure 1 As shown, the left wind guide plate can be made to supply air upward to the area it covers, and the right wind guide plate can be made to supply air downward to the area it covers. The wind guide angle of each wind guide plate 50 can be operated by the user, for example, by a remote control. A human body detection device can also be provided to detect information such as the area where the human body is located and the surface temperature, so that the controller obtains the detection information and controls the wind guide plate corresponding to the area according to a preset program, so as to achieve air supply effects such as the air flow blowing directly on the human body or avoiding the human body.

[0036] The number of the air guide plates 50 may be two, such as Figures 1 to 3 The number of the air guide plates 50 may also be three, such as Figure 7 Of course, the number of air guide plates may be four or more.

[0037] Can be as Figure 1 and Figure 2 As shown, an air outlet 12 is provided on the housing 10 for outputting the air supply airflow. A plurality of air guide plates 50 are provided at one air outlet 12. That is, one air outlet 12 corresponds to a plurality of air guide plates 50. In some alternative solutions, a plurality of air outlets may be provided, so that each air outlet corresponds to one air guide plate, or each air guide plate corresponds to a plurality of air outlets.

[0038] like Figure 2 As shown, the wall-mounted air conditioner indoor unit may include an evaporator 20, a fan 30, an air duct 40, and a swing blade 60. The evaporator 20 is used to perform heat exchange with the 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 is connected to the air outlet 12. The fan 30 may be a cross-flow fan, which is arranged at the 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 to swing the air left and right.

[0039] The structure of the air guide plate 50 in the wall-mounted air conditioner indoor unit is introduced below.

[0040] like Figures 2 to 5 As shown, the wind deflector 50 may generally include a wind deflector body 51 and a wind raising portion 52. The wind deflector body 51 is used to be rotatably mounted on the housing 10 (rotatable around the x-axis, which is indicated in the figure).

[0041] The air guide body 51 is provided with a through flow outlet 515, which passes through two side surfaces of the air guide body 51. The side of the air guide body 51 facing the air supply airflow is the first side, and its surface is the first side 511; the side facing away from the air supply airflow is the second side, and its surface is the second side 512. In other words, when the air guide body 51 closes the air outlet 12, the side facing the inside of the air outlet 12 is the first side, and the side facing the outside of the housing 10 is the second side.

[0042] The wind-raising portion 52 is protrudingly disposed on the first side surface 511 of the air guide body 51. The wind-raising portion 52 is configured to change the airflow direction when the supply airflow flows through the first side surface 511, so as to form a negative pressure at the first side surface 511, thereby driving the ambient air on the second side of the air guide body 51 to merge into the supply airflow through the air inlet 515.

[0043] That is to say, since the wind-raising portion 52 protrudes outwardly compared to the first side surface 511 of the air guide body 51, it can hinder the air flow, forcing it to not continue to flow smoothly along the first side surface 511, but to move away from the first side surface 511, which reduces the air flow density at the first side surface 511 of the air guide body 51, forming a negative pressure area ( Figure 2 The S region in the figure roughly represents the range of the negative pressure region). Under the attraction of the negative pressure region, the ambient air on the second side of the air guide plate body 51 enters the negative pressure region through the air inlet 515 provided on the air guide plate body 51, and then merges into the supply air flow, forming a mixed air effect. When the air conditioner is cooling, the mixing of ambient air into the supply air flow can appropriately increase the temperature of the supply air flow; when the air conditioner is heating, the mixing of ambient air can appropriately reduce the temperature of the supply air flow, which makes the supply air flow more comfortable and realizes comfortable air supply of the air conditioner.

[0044] It is understandable that the connection point between the wind-raising portion 52 and the wind guide plate body 51 is located on the upstream side of the airflow of the drainage port 515 , so that the negative pressure area generated therein can attract the ambient air in the drainage port 515 .

[0045] The present invention realizes the air mixing function by only opening an opening on the air guide plate 50 and adding an air raising portion 52. The design is very clever, the structure is very simple, and the cost is low. Moreover, other structures of the wall-mounted air conditioner indoor unit do not need to be modified, which is very conducive to mass production and promotion.

[0046] The end of the air guide body 51 that is relatively upstream of the air supply airflow is defined as the windward end (end B), and the end that is relatively downstream of the air supply airflow is defined as the outlet end (end A). The flow direction of the air supply airflow on the first side surface 511 of the air guide body 51 is toward the outlet end. The airflow upstream edge of the air guide port 515 refers to the edge of the air guide port 515 that is close to the windward end of the air guide body 51, and the other side of the air guide port 515 that is opposite to the airflow upstream edge (edge ​​C) is the airflow downstream edge (edge ​​D). Figure 4 and Figure 5 .

[0047] In some embodiments, the wind-raising portion 52 may include a wind-raising plate 521 that gradually moves away from the first side 511 along the airflow direction from the upstream edge (C edge) of the airflow of the air outlet 515. In other words, the wind-raising plate 521 extends from the first side 511, with the extension direction toward the downstream side of the air supply airflow, and gradually moves away from the first side during the extension process. Under the guidance of the wind-raising plate 521, the air supply airflow gradually moves away from the first side 511 of the air guide plate 50, and a negative pressure area is generated at the first side 511. In this embodiment, the starting end of the wind-raising plate 521 is directly connected to the edge of the air outlet 515, so that the connection transition section between the two is smoother, which is conducive to better guiding the airflow.

[0048] When the air guide plate 50 plays an air mixing role, its first side surface 511 can be set upward. In this way, the wall-mounted air-conditioning indoor unit can take into account both the air outlet angle and the air volume. For example, in order to improve the comfort of air supply, when the wall-mounted air-conditioning indoor unit is cooling, it is usually hoped that the air guide plate will guide the cold air to blow out as vertically upward as possible. However, when the air guide plate of the conventional wall-mounted air-conditioning indoor unit is rotated to an upward blowing angle close to the limit, the angle between the air guide plate and the plane where the air outlet is located is too small, that is, the opening is very small (the opening of the air guide plate refers to the degree to which it opens the air outlet. When the air guide plate completely closes the air outlet, the opening is zero. When the air guide plate fully opens the air outlet (refer to Figure 6 ), the opening is 100%, and the air flow is smoothest), the air guide plate will seriously block the air outlet, and the air volume becomes very small. This limits the air guide angle range of the air guide plate. Especially when the air is guided vertically, it is difficult to take into account both the air guide angle and the air volume.

[0049] In the embodiment of the present invention, the wind lifting plate 521 can guide the wind upward. Therefore, when the wall-mounted indoor air conditioner is in cooling operation, it is not necessary to rotate the wind guide plate body 51 to a state that is too close to the vertical (i.e., close to the state of closing the air outlet), so as to ensure that the wind guide plate 50 has a sufficiently large opening to avoid affecting the air volume. In this way, the wall-mounted indoor air conditioner takes into account both the air supply angle and the air volume.

[0050] like Figure 5 As shown, the projection of the wind-raising plate 521 on the first side 511 can at least cover the air outlet 515, and the wind-raising plate 521 can prevent the ambient air from directly entering the air supply airflow vertically through the air outlet 515, causing problems such as excessive noise. Furthermore, the end (end E) of the wind-raising plate 521 along the airflow direction can exceed the air outlet 515 (referring to the edge D of the airflow downstream of the air outlet 515), so as to define a drainage channel 516 connected to the air outlet 515 with the first side 511. The drainage channel 516 can guide the flow direction of the ambient air, so that when it merges with the air supply airflow, the angle between the two airflows is smaller, and the mixing is softer.

[0051] The projection of the wind-raising plate 521 on the first side surface 511 can be located within the range of the air guide body 51. In other words, the end (end E) of the wind-raising plate 521 is retracted a distance toward the upstream direction of the air supply airflow compared to the air outlet end (end A) of the air guide body 51. It can also be understood that a vertical line is drawn from the end of the wind-raising plate 521 to the first side surface 511 of the air guide body 51, and the foot of the vertical line will fall on the first side surface 511 itself rather than the extended surface of the first side surface 511. In this way, the section of the air guide body 51 protruding from the wind-raising plate 521 can guide and block the ambient air flowing out of the guide channel 516 to a certain extent, so that it can be better mixed with the air supply airflow. It can also prevent the wind-raising plate 521 from contacting the upper edge of the air outlet 12 when the air guide body 51 closes the air outlet 12.

[0052] like Figure 3 and Figure 4 As shown, the wind-raising portion 52 may also include a plurality of connecting ribs 522 arranged at intervals in a direction parallel to the rotation axis of the air guide plate body 51, and each connecting rib 522 connects the wind-raising plate 521 and the air guide plate body 51 to achieve a structural connection. In addition, the connecting ribs 522 can also split the ambient air to make the airflow softer. It can be understood that the connecting ribs 522 are located on the downstream side of the air supply airflow relative to the drainage port 515. In other words, the connecting ribs 522 divide the drainage channel 516 into a plurality of small channels. The wind-raising portion 52 and the air guide plate body 51 can be formed as an integral piece to facilitate processing and manufacturing.

[0053] Two of the plurality of connecting ribs 522 may be connected between the two ends of the wind-raising plate 521 along the rotation axis direction of the wind deflector body 51 and the first side surface 511, so as to close the gap between the two ends of the wind-raising plate 521 and the first side surface 511. In this way, the airflow can be prevented from flowing along the rotation axis direction of the wind deflector body 51, thereby avoiding the occurrence of adverse vortex and noise.

[0054] like Figure 2 and Figure 5 As shown, the wind-raising plate 521 can be made to be a curved plate with a central axis parallel to the rotation axis of the wind guide plate body 51 and a convex surface facing the wind guide plate body 51, so as to better guide the air flow upward.

[0055] like Figure 3 and Figure 4 As shown, the air deflector body 51 can be a long strip horizontally arranged in the length direction, and the rotation axis direction of the air deflector body 51 is parallel to the length direction of the air deflector body 51. The air inlet 515 is a long strip with a length direction parallel to the length direction of the air deflector body 51, so that the ambient air is basically mixed in at all places in the length direction of the air deflector body 51, so that the mixed air volume is larger. In addition, the air deflector body 51 as a whole can be a long arc plate with a concave first side surface 511. Of course, the air deflector body 51 as a whole can also be a flat plate.

[0056] In some alternative embodiments, the wind-raising plate 521 may not completely cover the drainage port 515. Even more, the projection of the wind-raising plate 521 on the first side surface 511 may fall on the upstream area of ​​the drainage port 515, and may not fall on the drainage port 515 at all. Alternatively, the wind-raising portion 52 may be a convex strip protruding from the first side surface 511, and the cross section of the convex strip may be an arc or a triangle. The specific structure will not be described in detail.

[0057] In some embodiments, Figure 2 and Figure 3 As shown, the air deflector 50 further includes at least one rotating arm 53, one end of which is connected to the driving device 70 located inside the housing 10, and the other end is connected to the air deflector body 51. Driven by the driving device 70, the rotating arm 53 drives the air deflector body 51 to rotate upward around the first end of the rotating arm 53 to close the air outlet 12, or rotate downward to open the air outlet 12. A plurality of rotating arms 53 may be provided, so that the plurality of rotating arms 53 are arranged at intervals along the length direction of the air deflector body 51. The driving device 70 includes a motor for directly or indirectly driving the rotating arm 53 to rotate.

[0058] like Figure 6As shown, the air outlet 12 can be located at the lower front part of the shell 10 and opened toward the front and downward. The rotating arm 53 is a bent arm with a bent opening facing downward. The driving device 70 is installed at the bottom wall of the air duct 40. The purpose of setting the bent arm is: at each angle of the air outlet 12 opened by the air guide plate 50, the first side surface 511 is directed toward the air outlet 12, so that the supply air flow is guided by the first side surface 511, and the second side surface 512 is facing away from the air outlet 12 so that it contacts the ambient air, which is conducive to realizing the air mixing function of the air guide plate 50. Moreover, the setting of the bent arm also facilitates the rotation of the air guide plate body 51 to the bottom of the shell 10 to completely avoid the supply air flow blown out by the air outlet 12, that is, to completely open the air outlet 12 so that the air guide plate 50 does not block the air flow at all.

[0059] On this basis, one or more inner guide plates 80 may be provided at the air outlet 12, and the inner guide plates 80 may be rotatably installed at the air outlet 12 and located on the inner side of the air guide plate 50, so as to adjust the up and down air outlet direction of the air outlet 12. That is, the air guide plate 50 may play a greater role in opening and closing the air outlet and mixing the air, and the inner guide plate 80 may play a role in guiding the air and swinging the air up and down.

[0060] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived based on the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all these other variations or modifications.

Claims

1. A wall-mounted air conditioner indoor unit, comprising a plurality of air guide plates arranged along the length direction of its housing, for guiding the air supply airflow outputted from the housing, each of the air guide plates comprising: An air deflector body is rotatably mounted on the shell, and a through-flow outlet is provided on the air deflector body; as well as a wind-raising portion, protrudingly disposed on a first side surface of the air guide body facing the air supply airflow, and configured to change the airflow direction when the air supply airflow flows through the first side surface, so as to form a negative pressure at the first side surface, thereby driving the ambient air on the other side of the air guide body to merge into the air supply airflow through the air guide port; The wind-raising portion and the wind guide plate body are integrally formed as a whole; The wind raising portion includes a wind raising plate which gradually moves away from the first side surface along the airflow direction from the airflow upstream edge of the airflow guide port; The end of the wind-raising plate along the airflow direction exceeds the drainage port to define a drainage channel connected to the drainage port with the first side surface.

2. The wall-mounted air conditioner indoor unit according to claim 1, wherein The projection of the wind-raising plate on the first side surface at least covers the drainage port.

3. The wall-mounted air conditioner indoor unit according to claim 1, wherein The wind raising part further includes a plurality of connecting ribs arranged at intervals in a direction parallel to the rotation axis of the wind guide plate body, and each of the connecting ribs connects the wind raising plate and the wind guide plate body.

4. The wall-mounted air conditioner indoor unit according to claim 2, wherein The projection of the wind-raising plate on the first side surface is located within the range of the wind guide plate body.

5. The wall-mounted air conditioner indoor unit according to claim 1, wherein The wind-raising plate is an arc-shaped plate whose central axis is parallel to the rotation axis of the wind guide plate body and whose convex surface faces the wind guide plate body.

6. The wall-mounted air conditioner indoor unit according to claim 1, wherein The air guide plate body is in the shape of a long strip arranged horizontally 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 air guide port is in the shape of an elongated strip with a length direction parallel to the length direction of the air guide plate body.

7. The wall-mounted air conditioner indoor unit according to claim 1, wherein The housing is provided with an air outlet for outputting the air supply airflow; and The plurality of air guide plates are arranged at the one air outlet.

8. The wall-mounted air conditioner indoor unit according to claim 7, wherein Each of the air deflectors further comprises at least one rotating arm, one end of the rotating arm being connected to a driving device located inside the shell, and the other end being connected to the air deflector body, so that under the drive of the driving device, the air deflector body is driven to rotate upward around the first end of the rotating arm to close the air outlet, or to rotate downward to open the air outlet; and An inner guide plate is also installed at the air outlet and is located on the inner side of the air guide plate.

Images