Air conditioner and its air guide plate

The air guide plate with slits and reinforcing portions addresses dust accumulation by redirecting airflow to prevent condensation, ensuring cleanliness and reducing maintenance.

JP2025532401APending Publication Date: 2025-09-29GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
View PDF 3 Cites 0 Cited by

Patent Information

Application Number
JP2025520035
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2022-10-27
Filing Date
2023-08-21
Publication Date
2025-09-29

AI Technical Summary

Technical Problem

The issue of dust accumulation on the air guide plate of an air conditioner due to condensation caused by the Coanda effect and low-pressure areas forming near the air outlet, leading to contamination.

Method used

The air guide plate features slits and reinforcing portions to redirect airflow, forming a negative pressure area that prevents hot and humid air from collecting and condensing on the plate, thereby reducing dust adsorption.

Benefits of technology

The solution effectively prevents condensation and dust accumulation on the air guide plate by redirecting airflow, maintaining cleanliness and reducing maintenance needs.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 2025532401000001_ABST
    Figure 2025532401000001_ABST
Patent Text Reader

Abstract

An air conditioner and its air guide plate, the air guide plate having a plate-shaped plate body, one or more slits formed in the plate body, the slits penetrating the plate body, and portions of the plate body on either side of the slits being offset from each other.
Need to check novelty before this filing date? Find Prior Art

Description

[Technical Field]

[0001] The present disclosure relates to a cooling device, and more particularly to an air conditioner and an air guide plate thereof. [Background technology]

[0002] When the air conditioner is cooling, the cold air blown out from the air outlet passes through the air guide plate, and because the flow rate of the cold air is high, a low-pressure area is formed nearby, and further, the moist and hot air in the vicinity is collected in the area below the air guide plate, and this moist and hot air comes into contact with the cold air on the air guide plate, causing condensation on the lower surface of the air guide plate, which attracts dust and dirty the air guide plate.

[0003] Furthermore, when the cold air blows out along the lower surface of the air guide plate, a vortex is formed at the end of the air guide plate due to the Coanda effect of the air, which sucks in the nearby warm and humid air flow and forms condensation, which then attracts dust and further worsens the contamination of the air guide plate. Summary of the Invention [Problem to be solved by the invention]

[0004] The following provides a summary of the subject matter detailed herein, and is not intended to limit the scope of protection of the claims. The technical problem that the embodiments of the present disclosure aim to solve is how to reduce dust adsorbed on the air guide plate of an air conditioner. [Means for solving the problem]

[0005] The technical means by which the embodiments of the present disclosure solve the above technical problems are as follows.

[0006] The air guide plate includes a plate-shaped plate body, The plate has one or more slits formed therethrough.

[0007] In one exemplary embodiment, the plate body includes a first airflow guide portion and a second airflow guide portion provided on one side of the first airflow guide portion; The slit has an intake end and a blowing end spaced apart from the intake end, The slit is provided between the first air guide section and the second air guide section, with the intake end facing one side closer to the first air guide section and the blowing end facing one side closer to the second air guide section.

[0008] In one exemplary embodiment, the first airflow guiding section and the second airflow guiding section are both configured as strip-shaped plate structures, and the first airflow guiding section, the second airflow guiding section, and the slits extend in the same direction; Both ends of the first airflow guiding section are connected to both ends of the second airflow guiding section, respectively.

[0009] In one exemplary embodiment, the cross sections of the first airflow guiding section and the second airflow guiding section are both arcs arching to the same side.

[0010] In one exemplary embodiment, the ratio of the length of the slit to the length of the plate ranges from 0.7 to 0.9.

[0011] In one exemplary embodiment, the width of the slit ranges from 5 mm to 15 mm.

[0012] In one exemplary embodiment, the air guide plate further includes a reinforcing portion, and the reinforcing portion is connected to portions of the plate body on both sides of the slit.

[0013] In one exemplary embodiment, the reinforcement portion is configured as a plate-like structure perpendicular to the plate body.

[0014] In one exemplary embodiment, a plurality of the reinforcing portions are provided, and the reinforcing portions are sequentially arranged at intervals along the slit.

[0015] In one exemplary embodiment, the plate surface of the plate body is further provided with a plurality of ribs arranged side by side.

[0016] An embodiment of the present disclosure further proposes an air conditioner including a body provided with the above-described air guide plate and air outlet, The air guide plate is provided at the air outlet and is rotatably connected to the airframe.

[0017] In one exemplary embodiment, the extension directions of the slits are perpendicular to the blowing direction of the blowing outlet.

[0018] When the air conditioner is cooling, as cool air is blown out from the outlet of the unit, a portion of the cool air flows along one surface of the air guide plate, from the leading edge to the trailing edge of the plate, and finally flows in the direction of the trailing edge, thereby changing the outlet direction and simultaneously forming a negative pressure area near the other surface of the plate. As the remaining portion of the cool air blown out from the outlet passes through the slits, it penetrates the slits and sprays cool air into the negative pressure area. The cool air sprayed into the negative pressure area prevents the hot and humid air around the air guide plate from collecting in the negative pressure area, thereby preventing the hot and humid air from contacting the air guide plate and causing condensation on the air guide plate, and significantly reducing dirt caused by dust adsorption due to condensation on the air guide plate.

[0019] Other aspects can be appreciated after studying the drawings and detailed description. [Brief explanation of the drawings]

[0020] [Figure 1] 1 is a schematic perspective view showing an air conditioner according to an embodiment of the present disclosure. [Figure 2] 1 is a partial schematic diagram showing an air conditioner according to an embodiment of the present disclosure. [Figure 3] FIG. 2 is a schematic bottom view showing an air conditioner according to an embodiment of the present disclosure. [Figure 4] FIG. 2 is a schematic perspective view showing the front of a baffle plate in an embodiment of the present disclosure. [Figure 5] FIG. 2 is a schematic half-sectional view showing the front of a baffle plate in an embodiment of the present disclosure. [Figure 6] FIG. 2 is a schematic perspective view showing the rear surface of the air guide plate in the embodiment of the present disclosure. [Figure 7] FIG. 4 is a partial schematic view showing the rear surface of the air guide plate in the embodiment of the present disclosure. [Figure 8] 1 is a partial cross-sectional schematic view showing an air conditioner according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0021] Hereinafter, the principles and features of the embodiments of the present disclosure will be described with reference to the drawings, and the examples given are used only to illustrate the present disclosure and are not intended to limit the scope of the present disclosure.

[0022] As shown in Figures 1 to 3, Figures 1 to 3 show the structure of an air conditioner 1 in this embodiment. The air conditioner 1 may be a ceiling air conditioner, a wall-mounted air conditioner, a cabinet-type air conditioner, etc., and this embodiment takes a ceiling air conditioner as an example. A ceiling air conditioner, also known as a ceiling unit or ceiling-mounted air conditioner, is a recessed air conditioner that can be recessed into a ceiling or suspended ceiling, making full use of the upper space in the room and saving installation space on the ground. At the same time, a ceiling air conditioner recessed into a ceiling or suspended ceiling is aesthetically pleasing and elegant.

[0023] The air conditioner 1 includes a body 11 and an air guide plate 12. The body 11 may be configured as a substantially rectangular structure. An air outlet 111 is provided in the body 11, and the air outlet 111 can blow air to the outside. The air outlet 111 may be configured as a straight strip-shaped opening. The air outlet 111 is provided close to one side of the body 11. In this embodiment, four air outlets 111 are provided, and the four air outlets 111 are provided on four sides of the body 11, respectively, and blow air in four directions from the body 11.

[0024] As shown in FIGS. 4 to 7 , the air guide plate 12 is provided at the air outlet 111. The air guide plate 12 includes a plate body 120 and a connecting frame 126. The plate body 120 is configured as a generally plate-like structure and may be a band-like plate structure. The connecting frame 126 may be configured as a straight strip. One end of the connecting frame 126 is connected to the plate body 120. One end of the connecting frame 126 may be connected to the plate body 120, and the connecting frame 126 and the plate body 120 may be perpendicular to each other. As shown in FIG. 8 , one end of the connecting frame 126 away from the plate body 120 may be rotatably connected to the body 11, and the connecting frame 126 may be connected to the body 11 by a hinge. In this way, the air guide plate 12 is rotatably connected to the body 11, and the inclination of the plate body 120 can be changed when the air guide plate 12 rotates, thereby changing the flow direction in which the airflow is blown out from the air outlet 111, i.e., the blowing direction of the air outlet 111 can be changed.

[0025] One side of the plate body 120 is a leading edge and the other side of the plate body 120 is a trailing edge, with the leading edge being closer to the air outlet 111 of the fuselage 11 than the downwind side. The plate body 120 is further provided with a slit between the leading edge and the trailing edge, which penetrates the plate body 120 in the thickness direction of the plate body 120. There may be one or more slits on the plate body 120. The slits may be configured in a strip shape, and it is preferable that the extending directions of the slits are perpendicular to each other in the blowing direction of the air outlet 111.

[0026] As shown in Figure 8, when the air conditioner is in cooling mode, as cool air is blown out from the air outlet 111 of the body 11, a portion of the cool air moves along one surface of the plate 120, flows from the leading edge of the plate 120 to the trailing edge of the plate 120, and finally moves in the direction of the trailing edge, thereby changing the blowing direction of the air outlet 111 and simultaneously forming a negative pressure area 2 near the other surface of the plate 120. As the other portion of the cool air blown out from the air outlet 111 passes through the slits, it penetrates the slits and is sprayed into the negative pressure area 2. The cool air sprayed into the negative pressure area 2 prevents the hot and humid air around the air guide plate 12 from collecting in the negative pressure area 2, thereby preventing the hot and humid air from contacting the air guide plate 12 and causing condensation on the air guide plate 12 and significantly reducing dirt caused by the condensation on the air guide plate 12 and dust adsorption.

[0027] In one exemplary embodiment, the plate body 120 includes a first air guiding section 121 and a second air guiding section 122. The first air guiding section 121 and the second air guiding section 122 are both configured as plate-like structures. The second air guiding section 122 is provided on one side of the first air guiding section 121 away from the air outlet 111, with the first air guiding section 121 being close to the leading end of the plate body 120 and the second air guiding section 122 being close to the trailing end of the plate body 120. A slit is provided between the first air guiding section 121 and the second air guiding section 122.

[0028] 8, slit 123 has intake end 124 and blowing end 125 facing intake end 124. Airflow enters slit 123 from intake end 124 and is then blown out from blowing end 125. One end of first air guide section 121 close to second air guide section 122 is offset from one end of second air guide section 122 close to first air guide section 121, so intake end 124 of slit 123 faces one side close to first air guide section 121, and blowing end 125 of slit 123 faces one side close to second air guide section 122.

[0029] The cool air flow from the air intake port flows sequentially along the first air guide section 121 and the second air guide section 122. When the cool air flow passes through the air intake port of the slit 123, the air intake end 124 of the slit 123 faces the side closer to the first air guide section 121, so that a larger amount of cool air flows into the slit 123. The cool air flow that has entered the slit 123 is then blown out from the outlet end 125 of the slit 123 to the side closer to the second air guide section 122. This cool air flow further prevents vortices from forming on the rear surface of the end of the second air guide section 122 that is away from the first air guide section 121, and further prevents condensation from forming on the end of the plate body 120 and reduces dust adsorption by the end of the plate body 120.

[0030] In one exemplary embodiment, the first airflow guide section 121 and the second airflow guide section 122 are both strip-shaped plate structures. The cross sections of the first airflow guide section 121 and the second airflow guide section 122 are both arcs arching on the same side. The first airflow guide section 121 and the second airflow guide section 122 can be configured as straight strip-shaped plate structures narrow at both ends and wide in the middle. The first airflow guide section 121 and the second airflow guide section 122 extend in the same direction. Opposing ends of the first airflow guide section 121 are respectively connected to opposing ends of the second airflow guide section 122. A slit 123 is provided between the first airflow guide section 121 and the second airflow guide section 122, and extends in the same direction as the first airflow guide section 121.

[0031] Both ends of first air guide plate 12 and second air guide section 122 are connected to each other, and slits 123 are provided between first air guide section 121 and second air guide section 122, which simplifies the structure of air guide plate 12 and makes it easy to process and manufacture. At the same time, the extension direction of slits 123 is the same as that of first air guide section 121 and second air guide section 122, allowing the cool air blown out from slits 123 to cover as wide an area as possible of negative pressure area 2 below second air guide section 122, further reducing the occurrence of condensation.

[0032] In one exemplary embodiment, the extension directions of the first airflow guiding section 121, the second airflow guiding section 122 and the slits 123 are the same, and the extension direction of the plate body 120 is the same as the extension direction of the slits 123. The ratio of the length of the slits 123 to the length of the plate body 120 ranges from 0.7 to 0.9, and preferably is 0.8.

[0033] When the ratio of the length of the slits 123 to the length of the plate 120 is 0.7-0.9, the plate 120 has sufficient structural strength, and the length of the slits 123 can be made as long as possible, so that the air guide plate 12 has a good anti-condensation effect.

[0034] In one exemplary embodiment, the width of the slit 123 ranges from 5 mm to 15 mm.

[0035] The width of the slits 123 can adjust the flow rate of cool air passing through the slits 123, and the wider the slits 123, the greater the flow rate of cool air passing through the slits 123, improving the dew condensation prevention effect of the air guide plate 12. However, if the slits 123 on the air guide plate 12 are too large, the air guide plate 12 will not be able to effectively guide the cool air blown out from the air outlet 111. When the width of the slits 123 is 5 mm to 15 mm, the air guide plate 12 will effectively guide the air flow and will also have a good dew condensation prevention effect.

[0036] In one exemplary embodiment, the air guide plate 12 further includes a reinforcing portion 127. The reinforcing portion 127 may be configured in a strip shape. The reinforcing portion 127 straddles the slit 123, with one end of the reinforcing portion 127 connected to the first air guide portion 121 and the other end of the reinforcing portion 127 connected to the second air guide portion 122.

[0037] Because slits 123 are provided between first air guide section 121 and second air guide section 122, these slits 123 weaken the structural strength of plate body 120, making plate body 120 more susceptible to deformation or damage under the action of external forces and potentially generating large-amplitude vibrations under the action of airflow. Reinforcement section 127 connects first air guide section 121 and second air guide section 122 to each other, and reinforcement section 127 can strengthen the structural strength of plate body 120 at slits 123, making plate body 120 less susceptible to deformation or damage and reducing the vibration amplitude of air guide plate 12.

[0038] In one exemplary embodiment, the reinforcing portion 127 is configured as a strip-shaped plate structure, and the plate surface of the reinforcing portion 127 is perpendicular to the plate surface of the plate body 120.

[0039] The reinforcing portion 127 is plate-shaped, and the plate surfaces of the reinforcing portion 127 are perpendicular to the plate surfaces of the plate body 120, so that the reinforcing portion 127 further reinforces the structural strength of the plate body 120 and can increase the bending moment resistance capacity of the plate body 120. It is more preferable that the plate surfaces of the reinforcing portion 127 are parallel to each other in the blowing direction of the air outlet 111, so that the reinforcing portion 127 will not impede the airflow from the air outlet 111 as much.

[0040] In one exemplary embodiment, a plurality of reinforcing portions 127 are provided, for example, six reinforcing portions 127. The plurality of reinforcing portions 127 may all be provided on the same side of the plate body 120. The plurality of reinforcing portions 127 are sequentially arranged along the extension direction of the slit 123, and two adjacent reinforcing portions 127 are spaced apart from each other at uniform intervals.

[0041] The reinforcing portions 127 are arranged sequentially along the slits 123, and can reinforce the structural strength of the plate body 120 along the slits 123, thereby increasing the structural strength of the plate body 120.

[0042] In one exemplary embodiment, a plurality of ribs 128 are provided on the plate surfaces of both the first air guiding section 121 and the second air guiding section 122. The ribs 128 are configured as strip-shaped protrusions. The plurality of ribs 128 are arranged side by side on the first air guiding section 121 and the second air guiding section 122, are parallel to each other, and adjacent two ribs 128 are spaced apart from each other. The extension direction of the ribs 128 is the same as the extension direction of the slits 123. The ribs 128 can reduce the occurrence of condensation on the first air guiding section 121 and the second air guiding section 122.

[0043] In describing the present disclosure, it will be understood that terms indicating directions and positional relationships, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," are based on the directions or positional relationships shown in the drawings and are merely intended to facilitate and simplify the description of the present disclosure, and do not indicate or imply that the referred devices or elements must have a particular orientation, configuration, or operation in a particular direction, and cannot be considered to limit the present disclosure.

[0044] It should be noted that the terms "first" and "second" are used for descriptive purposes only and cannot be understood as expressing or implying relative importance or the number of technical features being shown. Thus, a feature defined by "first" or "second" can explicitly or implicitly include at least one of the feature. In the description of the present invention, "plurality" means at least two, e.g., two, three, etc., unless otherwise specified.

[0045] In this disclosure, unless otherwise specified or limited, terms such as "attached," "coupled," "connected," and "fixed" should be understood in a broad sense, and may mean, for example, fixedly connected, detachably connected, or integrated, mechanically connected, electrically connected, directly connected, indirectly connected via an intermediate medium, internal communication between two elements, or an interactive relationship between two elements. Those skilled in the art will be able to understand the specific meaning of the above terms in this disclosure depending on the context.

[0046] In this disclosure, unless otherwise specified and limited, a first feature being "above" or "below" a second feature may include direct contact between the first and second features or indirect contact between the first and second features via an intermediate medium. Furthermore, a first feature being "above," "above," and "on top of" a second feature may mean that the first feature is directly above and diagonally above the second feature, or simply indicates that the horizontal height of the first feature is higher than that of the second feature. A first feature being "below," "below," and "on bottom of" a second feature may include that the first feature is directly below or diagonally below the second feature, or simply indicates that the horizontal height of the first feature is lower than that of the second feature.

[0047] In the description herein, a statement referring to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples" means that a particular feature, structure, material, or characteristic described with reference to that embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, general expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, a particular feature, structure, material, or characteristic described may be incorporated in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art can combine and combine the various embodiments or examples described herein and the features of the various embodiments or examples without mutual contradiction.

[0048] Although the embodiments of the present disclosure have been shown and described, the above embodiments are illustrative and should not be construed as limiting the present disclosure. It will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the above embodiments within the scope of the present disclosure. [CROSS-REFERENCE TO RELATED APPLICATIONS]

[0049] This patent application claims priority from a Chinese patent application filed on October 27, 2022, with application number 202222856058.9 and entitled "Air conditioner and air guide plate therefor," the disclosure of which is incorporated herein by reference. [Explanation of symbols]

[0050] 1. Air conditioner 11 aircraft 111 Air outlet 12 Wind guide plate 120 Plate 121 First air guide section 122 Second air guide section 123 Slit 124 Intake end 125 Outlet end 126 Connection Frame 127 Reinforcement 128 Ribs

Claims

1. An air guide plate applied to an air conditioner, comprising a plate-shaped plate body, The air guide plate has one or more slits formed in the plate body, the slits penetrating the plate body in the thickness direction, and portions of the plate body on both sides of the slits being offset from each other.

2. the plate body includes a first air guide section and a second air guide section provided on one side of the first air guide section, The slit has an intake end and a blowing end separated from the intake end, 2. The air guide plate according to claim 1, wherein the slit is provided between the first air guide section and the second air guide section, the intake end faces one side closer to the first air guide section, and the blowing end faces one side closer to the second air guide section.

3. the first airflow guiding section and the second airflow guiding section are both configured as strip-shaped plate structures, and the first airflow guiding section, the second airflow guiding section, and the slits extend in the same direction; The airflow guide plate according to claim 2 , wherein both ends of the first airflow guide section are connected to both ends of the second airflow guide section, respectively.

4. 4. The airflow guide plate according to claim 3, wherein the cross sections of the first airflow guide section and the second airflow guide section are both arcs arching toward the same side.

5. 5. The air guide plate according to claim 1, wherein the ratio of the length of the slit to the length of the plate body is in the range of 0.7 to 0.

9.

6. The air guide plate according to any one of claims 1 to 4, wherein the width of the slits ranges from 5 mm to 15 mm.

7. The air guide plate according to claim 1 , further comprising a reinforcing portion, the reinforcing portion being connected to portions of the plate body on both sides of the slit.

8. The air guide plate according to claim 7 , wherein the reinforcing portion is configured as a plate-like structure perpendicular to the plate body.

9. The air guide plate according to claim 7 or 8, wherein a plurality of the reinforcing portions are provided, and the plurality of reinforcing portions are sequentially arranged at intervals along the slit.

10. The air guide plate according to any one of claims 1 to 4, further comprising a plurality of ribs arranged side by side on the plate surface of the plate body.

11. An air conditioner comprising a body provided with the air guide plate and the air outlet according to any one of claims 1 to 4, The air guide plate is provided at the air outlet and rotatably connected to the body of the air conditioner.

12. The air conditioner according to claim 11, wherein the extending direction of the slits is perpendicular to the blowing direction of the air outlet.

Citation Information

Patent Citations

  • Air conditioner

    JP1997014742A

  • Indoor unit

    JP2013164218A

  • Wall-mounted air conditioner indoor unit and air deflector thereof

    WO2021169403A1