Wall-mounted air conditioner indoor unit and its air deflector

Abstract

The present invention provides a wall-mounted air conditioner indoor unit and an air deflector thereof. The air deflector includes an air deflector body rotatably mounted at the air outlet of the wall-mounted air conditioner indoor unit about an axis parallel to its own length direction; and a plurality of flow guiding rib groups respectively arranged at different length segments of the air deflector body. Each flow guiding rib group includes a plurality of first flow guiding ribs and a plurality of second flow guiding ribs protruding from the first side facing upward when the air outlet is opened of the air deflector body and arranged at intervals in sequence along the length direction of the air deflector body. The first flow guiding ribs and the second flow guiding ribs extend toward the downstream direction of the air supply airflow and are respectively gradually deflected toward both ends of the length direction of the air deflector body, so that the air supply airflow flowing through this length segment diffuses and flows out toward both ends of this length segment. The present invention expands the diffusion angle of the air deflector in the left and right directions and increases the air outlet distance at the same time.

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 and an air guide plate thereof. 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] The object of the present invention is to provide a wall-mounted air conditioner indoor unit and an air guide plate thereof that overcomes the above-mentioned problems or at least partially solves the above-mentioned problems.

[0006] The purpose of the present invention is to expand the diffusion angle of the air guide plate in the left and right directions and increase the air outlet distance at the same time.

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

[0008] In one aspect, the present invention provides an air guide plate for a wall-mounted air conditioner indoor unit, comprising:

[0009] The air guide plate body is used to be installed at the air outlet of the indoor unit of the wall-mounted air conditioner so as to be rotatable around an axis parallel to its own length direction; and

[0010] A plurality of guide rib groups are respectively arranged at different length sections of the air guide plate body; wherein

[0011] Each guide rib group includes a first side surface protruding from the air guide plate body and facing upward when the air outlet is opened, and a plurality of first guide ribs and a plurality of second guide ribs are arranged in sequence and spaced apart along the length direction of the air guide plate body. The first guide ribs and the second guide ribs extend toward the downstream direction of the supply air flow and gradually deviate toward the two ends of the length direction of the air guide plate body, so that the supply air flow passing through the length section diffuses and flows out toward the two ends of the length section.

[0012] Optionally, the number of the plurality of guide rib groups is two, and the two are respectively located on two 1 / 2 length sections of the air guide plate body.

[0013] Optionally, each first air guiding rib is formed by smoothly connecting two sections, the two sections are bent along different cylindrical surfaces respectively, and the section near the air outlet end of the air guiding plate body has a smaller bending radius.

[0014] Optionally, each second air guiding rib is formed by smoothly connecting two sections, the two sections are bent along different cylindrical surfaces respectively, and the section near the air outlet end of the air guiding plate body has a smaller bending radius.

[0015] Optionally, the air guiding plate further includes: a wind boosting plate, which is installed on the air guiding plate body at an interval from the first side surface, and is configured to guide the supply air flow to deflect upward when the first side surface faces the air outlet to guide the supply air flow.

[0016] Optionally, in the flowing direction of the supply air flow, the distance between the wind boosting plate and the air guiding plate body gradually increases.

[0017] Optionally, the surface of the wind boosting plate facing the air guiding plate body is connected to the plurality of first air guiding ribs and the plurality of second air guiding ribs.

[0018] Optionally, the wind boosting plate is narrower than the air guiding plate body, and its projection on the first side surface is located in the half area of the first side surface close to the air outlet end of the air guiding plate body.

[0019] Optionally, the whole wind boosting plate is an arc-shaped plate with its axis parallel to the rotation axis of the air guiding plate body and its convex surface facing the first side surface.

[0020] On the other hand, the present invention also provides a wall-mounted air conditioner indoor unit, including: a housing, which is provided with an air outlet; and an air guiding plate, which is the air guiding plate according to any one of the above, wherein the air guiding plate body is rotatably installed at the air outlet.

[0021] In the air guiding plate of the present invention, a plurality of air guiding rib groups are arranged on the first side surface of the air guiding plate body. The plurality of air guiding rib groups are respectively arranged on different length segments of the air guiding plate body. Each air guiding rib group is on one length segment of the air guiding plate body, and the first air guiding rib and the second air guiding rib in it extend towards the downstream direction of the supply air flow and are respectively gradually deflected towards both ends of the length direction of the air guiding plate body, so that the supply air flow flowing through this length segment diffuses and flows out towards both ends of this length segment. In this way, at both ends of the length direction of the air guiding plate body, the air flow gradually diffuses towards the outer regions at both ends of the length direction of the air guiding plate body, forming a fan-shaped air outlet surface as a whole, realizing wide-angle air supply, making the temperature inside the room more uniform and the human body feel more comfortable. At the same time, the intersection of adjacent two air guiding rib groups will generate the intersection of the supply air flow, and the supply air flow after intersection flows out of the air outlet forward with greater power, and its air supply distance is farther. That is, the air guiding plate of the present invention has both wide-angle air supply and long-distance air supply functions at the same time.

[0022] Furthermore, the air deflector of the present invention also has a function of lifting and blowing air. When the first side of the air deflector body faces the air outlet to guide the air supply flow, the lifting plate is made to deflect the guided air supply flow upward, that is, to make the air blow upward. And, due to the provision of a dedicated lifting plate, the lifting angle can be designed to be larger, which fully meets the requirements for the upward angle in the air-conditioning cooling or non-blowing mode.

[0023] Furthermore, in the air deflector of the present invention, the lifting plate is spaced apart from the air deflector body to allow a small portion of the air supply flow to flow out from the air flow channel between the lifting plate and the air deflector body, avoiding some air flow hitting the windward end of the lifting plate and generating an adverse backflow phenomenon.

[0024] From 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 clear about the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Some specific embodiments of the present invention will be described in detail hereinafter with reference to the accompanying drawings in an exemplary but non-limiting manner. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0026] Figure 1 is a schematic structural view of an air deflector according to an embodiment of the present invention;

[0027] Figure 2 is Figure 1 a schematic top view of the shown air deflector;

[0028] Figure 3 is Figure 1 an N-N cross-sectional view of the shown air deflector;

[0029] Figure 4 is a schematic structural view of the second flow guiding rib in the air deflector;

[0030] Figure 5 is a schematic view of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] Figure 1 is a schematic structural view of an air deflector according to an embodiment of the present invention; Figure 2 is Figure 1 a schematic top view of the shown air deflector; Figure 3 is Figure 1 an N-N cross-sectional view of the shown air deflector, which is magnified compared to Figure 1 that shown in Figure 4 is a schematic structural view of the second flow guiding rib in the air deflector; Figure 5It is a schematic diagram of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention. In the figure, the solid arrows indicate the flow direction of the air supply airflow. The x-axis is the central axis of the air deflector body, and the y-axis is parallel to the width direction of the air deflector body.

[0032] As Figures 1 to 5 shown, the air deflector 50 of the embodiment of the present invention generally may include an air deflector body 51 and a plurality of air guiding rib groups 54. The air deflector body 51 is used to be rotatably installed at the air outlet 12 of the housing 10 of the wall-mounted air conditioner indoor unit. The air deflector body 51 is integrally long and strip-shaped, and it has a length direction and a width direction. The rotation axis x-axis of the air deflector body 51 is parallel to the length direction of the air deflector body 51. The air deflector body 51 is used to open or close the air outlet 12 and adjust the air outlet angle of the air outlet 12.

[0033] For example Figures 1 to 5 shown, the air deflector body 51 can be installed at the air outlet 12 with the rotation axis horizontal or nearly horizontal, and its length direction is parallel to the left-right direction, so as to adjust the up-and-down air outlet angle of the air outlet 12

[0034] The airflow blown out from the inside of the housing 10 through the air outlet 12 is the air supply airflow. When the air conditioner is cooling, the air supply airflow is cold air; when the air conditioner is heating, the air supply airflow is hot air. When the air deflector body 51 opens the air outlet 12, the upward side is the first side, and its surface is the first side surface 511; the downward side is the second side, and its surface is the second side surface 512. It is defined that one end of the air deflector body 51 close to the upstream of the air supply airflow when the air outlet 12 is opened is the windward end (B end), and one end close to the downstream of the air supply airflow is the air outlet end (A end). The flow direction of the air supply airflow on the first side surface 511 of the air deflector body 51 is towards the air outlet end.

[0035] The plurality of air guiding rib groups 54 are respectively arranged on different length segments of the air deflector body 51 (for example Figure 2 , two air guiding rib groups 54 are respectively arranged on two length segments 501 and 502 of the air deflector body 51). Each air guiding rib group 54 includes a plurality of first air guiding ribs 541 and a plurality of second air guiding ribs 542 that protrude from the first side surface 511 facing upward when the air deflector body 51 opens the air outlet 12 and are arranged at intervals in sequence along the length direction (x direction) of the air deflector body 51. The first air guiding ribs 541 and the plurality of second air guiding ribs 542 extend towards the downstream direction of the air supply airflow and are respectively gradually deflected towards both ends of the length direction of the air deflector body 51, so that the air supply airflow flowing through this length segment diffuses and flows out towards both ends of this length segment.

[0036] For example Figure 2, the first air guiding rib 541 guides the air supply airflow to deflect to the left, and the second air guiding rib 542 guides the air supply airflow to deflect to the right. Multiple air guiding ribs and the air guiding plate body 51 can be made into an integral part by an integral molding process, such as integral injection molding.

[0037] When the air guiding plate of the prior art guides air, the air supply airflow only flows along the width direction of the air guiding plate, which makes the airflow blow out from the air outlet almost parallelly, forming a rectangular airflow. Usually, a swing leaf is additionally arranged inside the air outlet to adjust the left and right air outlet directions of the air outlet.

[0038] However, in the embodiment of the present invention, by arranging multiple groups of air guiding ribs 54 on the air guiding plate body 51, a part of the air supply airflow can be deviated from the width direction of the air guiding plate body 51, so that this part of the air supply airflow gradually diffuses to the two side regions in the length direction of the air guiding plate body 51, that is, diffuses to the left and right, forming a fan-shaped airflow. In this way, for the wall-mounted air conditioner indoor unit applying this air guiding plate, the diffusion angle of the air outlet in the left and right directions is increased, and the wide-angle air supply effect is realized, which makes the temperature inside the room more uniform and makes people feel more comfortable.

[0039] Moreover, at both ends of the air guiding plate body 51 in the length direction, the airflow gradually diffuses to the outer regions on both sides of the air guiding plate body 51 in the length direction, forming a fan-shaped air outlet surface as a whole, realizing wide-angle air supply, making the temperature inside the room more uniform and people feel more comfortable. At the same time, the intersection of adjacent two groups of air guiding ribs 54 will generate the intersection of the air supply airflow, and the air supply airflow after intersection flows out of the air outlet forward with greater power, and its air supply distance is farther. That is, the air guiding plate of the present invention has both wide-angle air supply and long-distance air supply functions at the same time.

[0040] For example Figure 2 , the number of multiple groups of air guiding ribs 54 is two, and the two are respectively located on the two 1 / 2 length segments 501, 502 of the air guiding plate body 51 (that is, the length of each length segment is half of the length of the air guiding plate body, with the plane C as the dividing interface). In this way, the left air guiding rib group 54 deflects the air to the left in the left region S2 of the air guiding plate body 51, and the right air guiding rib group 54 deflects the air to the right in the right region S3 of the air guiding plate body 51. The middle of the two air guiding rib groups deflects the air to the left and right respectively, forming an air flow intersection area S1, and the air flow at S1 has stronger power and a farther air supply distance.

[0041] Of course, in some alternative embodiments, three or more groups of air guiding ribs 54 can also be arranged to obtain more air flow intersection areas and make the air flow perform long-distance air supply more.

[0042] In some alternative ways, two groups of swing blades controlled separately on the left and right can be provided. When multiple swing blades on the left swing towards the left and the swing blades on the right swing towards the right, the air outlet also has a wide-angle air supply effect. However, since the swing blades are located more inside the air outlet relative to the air deflector, after the air supply airflow is deflected and guided by the swing blades, it does not directly blow out of the air outlet, but instead has to impact the surface of the air deflector to be guided up and down by the air deflector. However, during the process where the deflected airflow impacts the surface of the air deflector and is guided up or down by the air deflector, the degree of deflection will have a significant attenuation, making it difficult to achieve the desired wide-angle air supply effect.

[0043] In the embodiment of the present invention, a deflecting force is directly applied to the air supply airflow by the flow guiding ribs on the air deflector body 51. After the air supply airflow is deflected, it will directly blow out from the air outlet 12, and the degree of deflection is not affected by other components.

[0044] Each first flow guiding rib 541 can be formed by smoothly connecting two sections. The two sections are respectively bent along different cylindrical surfaces, and the bending radius of the section near the air outlet end A of the air deflector body 51 is smaller. In addition, each second flow guiding rib 542 can also be formed by smoothly connecting two sections. The two sections are respectively bent along different cylindrical surfaces, and the bending radius of the section near the air outlet end A of the air deflector body 51 is smaller. For example Figure 4 , the radii of the cylindrical surfaces corresponding to the two sections of the second flow guiding rib 542 are R1 and R2 respectively. R1 > R2. In this way, when the air supply airflow flows along the first flow guiding rib 541 or the second flow guiding rib 542, the deflection angle of the air supply airflow gradually increases (the deflection angle refers to the angle at which the air supply airflow deviates from the width direction of the air deflector body), making the direction change process of the air supply airflow smoother, which can reduce noise. Further, the value range of R1 / R2 can be 0.15 to 0.2, preferably 0.18, so as to obtain better flow guiding and noise reduction effects.

[0045] In some alternative embodiments, the flow guiding ribs can also extend in a plane that forms an acute angle with the width direction of the air deflector.

[0046] In some embodiments, as Figures 1 to 5 shown, the air deflector 50 further includes a wind-raising plate 52. The wind-raising plate 52 is installed on the air deflector body 51 and forms a gap with the first side surface 511. The wind-raising plate 52 is configured to guide the air supply airflow to deflect upward when the first side surface 511 faces the air outlet 12, that is, to make the wind blow upward. For example, the wind-raising plate 52 can be an arc-shaped plate with its axis parallel to the rotation axis of the air deflector body 51 and its convex surface facing the first side surface 511.

[0047] When the wall-mounted air conditioner indoor unit is cooling, blowing the air upwards is conducive to achieving faster and more uniform cooling indoors, and the air supply distance is farther. In addition, blowing the cold air or hot air upwards can also make the air avoid the human body to avoid discomfort caused by direct blowing on the human body. In the embodiment of the present invention, due to the setting of a special air-lifting plate, the designer can design a larger air-lifting angle to fully meet the requirements of the air conditioner for the air-lifting angle. The air deflector of the embodiment of the present invention has both the functions of air-lifting and wide-angle air supply, the design is very ingenious, and the improvement is very small and the cost is low.

[0048] As Figure 3 shown, in the flowing direction of the air supply air flow, the distance between the air-lifting plate 52 and the air deflector body 51 is gradually increased. In this way, the air-lifting plate 52 can guide the air upwards. Therefore, when the wall-mounted air conditioner indoor unit is operating in cooling mode, it is not necessary to rotate the air deflector body 51 to a state too close to the vertical (i.e., close to the state of closing the air outlet), so as to ensure that the air deflector 50 has a large enough opening degree to avoid affecting the air volume. Thus, the wall-mounted air conditioner indoor unit takes into account both the air supply angle and the air volume.

[0049] As Figures 1 to 3 shown, the air-lifting plate 52 can be made narrower than the air deflector body 51, and its projection on the first side surface 511 is located in the half area of the first side surface 511 close to the air outlet end (A end) of the air deflector body 51. That is to say, the air-lifting plate 52 is made closer to the downstream of the air flow, so that the air-lifting effect is better when the air flow is lifted by the air-lifting plate 52 just before flowing out of the air deflector.

[0050] As Figure 1 and Figure 2 shown, the air-lifting plate 52 can be made shorter than the air deflector body 51, so that the air flow out of the air deflector body 51 section not covered by the air-lifting plate 52 is more smooth. In this way, the middle area in the length direction of the air deflector 50 is lifted upwards, and the end side area is not lifted but conducts wide-angle air guiding, which makes the air flow out of the entire air deflector more three-dimensional, dispersed, and more comfortable.

[0051] As Figure 3 shown, in the embodiment of the present invention, the air-lifting plate 52 is spaced from the air deflector body 51 to allow a small part of the air supply air flow to flow out from the air flow channel 521 between the air-lifting plate 52 and the air deflector body 51, avoiding the adverse backflow phenomenon caused by the air flow hitting the windward end of the air-lifting plate 52.

[0052] The surface of the air deflecting plate 52 facing the air deflector body 51 can be in contact with a plurality of first flow guiding ribs 541 and a plurality of second flow guiding ribs 542 to achieve the structural connection between the air deflecting plate 52 and the air deflector body 51. The air deflecting plate 52, the first flow guiding ribs 541, the plurality of second flow guiding ribs 542, and the air deflector body 51 can be an integral part made by an integral molding process, such as integral injection molding, so as to facilitate processing and production and save costs.

[0053] The present invention also provides a wall-mounted air conditioner indoor unit. As Figure 5 shown, the wall-mounted air conditioner indoor unit according to an embodiment of the present invention generally may include a housing 10 and the air deflector 50 of any one of the above embodiments. An air inlet 11 and an air outlet 12 are provided on the housing 10. The air deflector body 51 of the air deflector 50 is rotatably installed at the air outlet 12.

[0054] In some embodiments, as Figures 1 to 5 shown, the air deflector 50 further includes at least one rotating arm 53, one end of which is connected to a driving device 70 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 can be provided, and 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.

[0055] As Figure 5 shown, the air outlet 12 can be located at the lower front side of the housing 10 and opened forward and downward. The rotating arm 53 is integrally a bent arm with one bend and the bend opening downward. The driving device 70 is installed at the bottom wall of the air duct 40. The purpose of setting the bent arm is that at each angle when the air deflector 50 opens the air outlet 12, the first side 511 faces the air outlet 12, so that the air supply airflow is guided by the first side 511, and the second side 512 faces away from the air outlet 12 and contacts the ambient air, which is conducive to realizing the air mixing function of the air deflector 50. Moreover, setting the bent arm also facilitates rotating the air deflector body 51 below the housing 10 to completely avoid the air supply airflow blown out from the air outlet 12, that is, completely opening the air outlet 12 so that the air deflector 50 does not block the airflow at all.

[0056] On this basis, one or more inner deflectors 80 can be additionally provided at the air outlet 12. The inner deflectors 80 are rotatably installed at the air outlet 12 and are located inside the air deflector 50 for adjusting the up and down air outlet directions of the air outlet 12. That is, the air deflector 50 plays more roles in opening and closing the air outlet and mixing air, and the inner deflectors 80 play roles in guiding air and swinging up and down.

[0057] As Figure 5As shown, the wall-mounted air conditioner indoor unit may include an evaporator 20, a blower 30, an air duct 40, and a swing blade 60. The evaporator 20 is configured to perform heat exchange with the air entering the housing 10 from the air inlet 11 to form a supply air flow (specifically, cold air during cooling and hot air during heating). The inlet of the air duct 40 faces the evaporator 20, and the outlet communicates with the air outlet 12. The blower 30 may be a cross-flow fan, which is disposed at the inlet of the air duct 40 to urge the air to flow from the evaporator 20 to the air outlet 12. The swing blade 60 is used to adjust the left and right air outlet directions of the air outlet 12.

[0058] Up to 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 from the disclosed content of 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 determined to cover all these other variations or modifications.

Claims

1. An air deflector for a wall-mounted air conditioner indoor unit, characterized in that Comprising: An air deflector body, which is rotatably mounted at the air outlet of the wall-mounted air conditioner indoor unit about an axis parallel to its own length direction; And Multiple groups of flow guiding ribs, which are respectively arranged on different length segments of the air deflector body; wherein Each group of flow guiding ribs includes a plurality of first flow guiding ribs and a plurality of second flow guiding ribs that protrude from the first side surface of the air deflector body facing upward when the air outlet is opened and are arranged at intervals in sequence along the length direction of the air deflector body. The first flow guiding ribs and the second flow guiding ribs extend towards the downstream direction of the air supply airflow and are respectively gradually deflected towards both ends of the length direction of the air deflector body, so that the air supply airflow flowing through this length segment diffuses and flows out towards both ends of this length segment; The number of the multiple groups of flow guiding ribs is two, and the two are respectively located on two 1 / 2 length segments of the air deflector body; Each first flow guiding rib is formed by smoothly connecting two sections, and the two sections are respectively bent along different cylindrical surfaces, and the bending radius of the section near the air outlet end of the air deflector body is smaller; Each second flow guiding rib is formed by smoothly connecting two sections, and the two sections are respectively bent along different cylindrical surfaces, and the bending radius of the section near the air outlet end of the air deflector body is smaller.

2. The air deflector according to claim 1, wherein It further comprises: A wind boosting plate, which is installed on the air deflector body at an interval from the first side surface, and is configured to guide the air supply airflow to deflect upward when the first side surface faces the air outlet to guide the air supply airflow.

3. The air deflector according to claim 2, wherein In the flowing direction of the air supply airflow, the interval distance between the wind boosting plate and the air deflector body gradually increases.

4. The air deflector according to claim 2, wherein The surface of the wind boosting plate facing the air deflector body is connected to the multiple first flow guiding ribs and the multiple second flow guiding ribs.

5. The air deflector according to claim 2, wherein The wind boosting plate is narrower than the air deflector body, and its projection on the first side surface is located in the half area of the first side surface close to the air outlet end of the air deflector body.

6. The air deflector according to claim 2, wherein The wind boosting plate is an arc-shaped plate with its axis parallel to the rotation axis of the air deflector body and its convex surface facing the first side surface.

7. A wall-mounted air conditioner indoor unit, characterized in that Comprising: A housing, which is provided with an air outlet; and An air deflector, which is the air deflector according to any one of claims 1 to 6, wherein the air deflector body is rotatably mounted at the air outlet.

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