Vortex tongue strip for air conditioner indoor unit, air conditioner indoor unit and air conditioner

Abstract

The utility model relates to the technical field of air conditioners, in particular to a vortex tongue strip for an air conditioner indoor unit, the air conditioner indoor unit and an air conditioner. The problems that in the prior art, a zigzag structure adopts a linear middle parting line, the air supply amount is easily reduced, and noise is generated are solved. Therefore, the vortex tongue strip for the air conditioner indoor unit comprises a base and a plurality of sawtooth blades, the sawtooth blades are arranged on the base in an array mode, each sawtooth blade comprises a first air guide blade and a second air guide blade, the first air guide blade is arranged on the upper side of the second air guide blade, and a step is arranged on the connecting face of the first air guide blade and the second air guide blade. According to the utility model, the middle parting line of the sawtooth blade is provided with the bend, so that the airflow loss at the joint of the first air guide blade and the second air guide blade is reduced, the air supply volume can be increased, and meanwhile, as the airflow passing through the middle parting line is reduced, the scheme also can reduce the noise of air supply, so that a user has good use experience.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, and specifically provides a scroll tongue strip for an air conditioner indoor unit, the air conditioner indoor unit and an air conditioner. Background Art

[0002] In the application of vortex tongue strips in air-conditioning indoor units, the serrated structure shows significant advantages in optimizing airflow distribution, reducing vortexes and enhancing airflow mixing efficiency due to its unique geometric shape.

[0003] In the prior art, this type of structure is usually designed with a straight middle parting line, which is perpendicular to the main flow direction of the wind field, aiming to guide the airflow to pass more smoothly while reducing energy loss caused by sudden changes in the direction of the airflow.

[0004] However, in actual applications, due to limitations in the manufacturing process, such as insufficient mold precision, uneven wear, and slight deviations during assembly, the serrated structure actually produced may become uneven at the middle parting line, which directly affects the flow state of the airflow, disrupting the originally designed airflow path, and further affecting the air volume and noise level. This noise problem is particularly prominent under high wind speed conditions, seriously affecting the operating efficiency of the equipment and the user experience.

[0005] Therefore, the art needs a scroll tongue strip for an air-conditioning indoor unit, an air-conditioning indoor unit and an air conditioner to solve the above technical problems. Utility Model Content

[0006] The utility model aims to solve the above technical problem, that is, in the prior art, the sawtooth structure adopts a straight middle parting line, which easily reduces the air supply volume and generates noise.

[0007] In a first aspect, the utility model provides a vortex tongue strip for an air conditioner indoor unit, characterized in that the vortex tongue strip comprises a base and a plurality of sawtooth blades.

[0008] The plurality of sawtooth blades are arranged in an array on the base,

[0009] The sawtooth blade includes a first air guide blade and a second air guide blade connected to each other, wherein the first air guide blade is arranged on the upper side of the second air guide blade.

[0010] A step is provided on the connecting surface of the first air guide blade and the second air guide blade.

[0011] In the above embodiment of the vortex tongue strip for an air conditioner indoor unit, the first air guide blade includes an oblique air guide surface and a first arc-shaped air guide surface.

[0012] The second air guide blade includes a second arc-shaped air guide surface,

[0013] The second curved air guiding surface is connected to the lower edge of the first curved air guiding surface.

[0014] In the above-mentioned specific embodiment of the vortex tongue strip for an air-conditioning indoor unit, the first curved air-guiding surface and the second curved air-guiding surface have the same arc curvature.

[0015] In the above-mentioned specific embodiment of the vortex tongue strip for an air conditioner indoor unit, the inclination angle of the step ranges from 120° to 150°.

[0016] In the above-mentioned specific embodiment of the vortex tongue strip for an air conditioner indoor unit, the width of the first curved air guide surface is greater than the width of the second curved air guide surface, so that the bottom of the step forms a bulge.

[0017] In the above-mentioned specific embodiment of the vortex tongue strip for an air conditioner indoor unit, the width of the protrusion is in the range of 0.05 mm to 0.2 mm.

[0018] In the above-mentioned specific embodiment of the vortex tongue strip for an air-conditioning indoor unit, the number of the protrusions is two, and they are arranged on both sides of the first arc-shaped air-guiding surface.

[0019] In the above specific embodiment of the spiral tongue strip for an air-conditioning indoor unit, the two protrusions are symmetrically arranged.

[0020] Under the condition of adopting the above technical solution, the utility model provides a vortex tongue strip for an air conditioner indoor unit, the vortex tongue strip includes a base and a plurality of serrated blades, the plurality of serrated blades are arranged in an array on the base, the serrated blades include a first air guide blade and a second air guide blade, the first air guide blade is arranged on the upper side of the second air guide blade, and the connection surface of the first air guide blade and the second air guide blade is provided with a step. Based on the above structural setting, the utility model provides a step on the connection surface of the first air guide blade and the second air guide blade, so that the middle parting line of the serrated blade has a bend, thereby reducing the air flow loss at the connection between the first air guide blade and the second air guide blade, thereby allowing more gas to flow along the original path, that is, along the outer surface of the serrated blade. Therefore, the vortex tongue strip for an air conditioner indoor unit provided by the utility model can increase the air volume of the air supply. At the same time, since the air flow passing through the middle parting line is reduced, the solution can also reduce the noise of the air supply, so that the user has a good user experience.

[0021] Furthermore, the vortex tongue strip provided by the present invention for the indoor unit of the air conditioner defines an inclined air guide surface, a first curved air guide surface and a second curved air guide surface, so that the gas passes through the inclined air guide surface, the first curved air guide surface and the second curved air guide surface in sequence, thereby guiding the airflow to change direction and avoiding more air volume loss.

[0022] Furthermore, the vortex tongue strip for the indoor unit of the air conditioner provided by the present invention limits the arc curvature of the first curved air guide surface and the second curved air guide surface to be the same, so that when the airflow passes through the first curved air guide surface and the second curved air guide surface in sequence, the connecting surface thereof transitions smoothly, further reducing the air volume loss.

[0023] Furthermore, the vortex tongue strip for an air conditioner indoor unit provided by the present invention limits the inclination angle range of the step to 120°-150°, so as to minimize the air flow loss at the connection between the first guide blade and the second guide blade.

[0024] Furthermore, the vortex tongue strip provided by the present invention for the indoor unit of the air conditioner limits the bottom of the step to form a bulge, so that when the air flow passes through the first curved air guide surface to reach the second curved air guide surface, the spatial volume within the structure increases, thereby reducing the air pressure to reduce the air supply noise of the vortex tongue strip.

[0025] Furthermore, the vortex tongue strip for an air conditioner indoor unit provided by the present invention limits the width of the protrusion to a range of 0.05 mm to 0.2 mm, so as to minimize the air supply noise of the vortex tongue strip.

[0026] Furthermore, the vortex tongue strip for the air conditioner indoor unit provided by the present invention limits the protrusions to be arranged on both sides of the first curved air guide surface, so that the air supply noise on both sides of the first curved air guide surface is reduced at the same time, and the noise reduction effect is better.

[0027] Furthermore, the vortex tongue strip for an air conditioner indoor unit provided by the present invention defines two symmetrically arranged protrusions, so that the gas on both sides of the same serrated blade flows symmetrically, thereby maintaining air pressure balance.

[0028] In a second aspect, the present invention further provides an air-conditioning indoor unit, which includes the scroll tongue strip for the air-conditioning indoor unit as described in the above embodiment.

[0029] In a third aspect, the present invention further provides an air conditioner, which includes the air conditioner indoor unit as described in the above embodiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0031] Figure 1 This is a schematic structural diagram of a single sawtooth blade in a vortex tongue strip for an indoor unit of an air conditioner provided by the present invention;

[0032] Figure 2 This is another perspective view of a single sawtooth blade in the vortex tongue strip for an air conditioner indoor unit provided by the utility model;

[0033] Figure 3This is a structural diagram of a shell for an indoor unit of an air conditioner provided by the present utility model.

[0034] Reference numerals:

[0035] 01. Vortex tongue strip;

[0036] 1. Base;

[0037] 2. Serrated blades;

[0038] 21. First air guide blade; 22. Second air guide blade; 23. Step; 24. Protrusion;

[0039] 211. Oblique air guide surface; 212. First curved air guide surface; 221. Second curved air guide surface. DETAILED DESCRIPTION

[0040] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make adjustments to them as needed to adapt to specific applications. For example, although this specific embodiment is described in conjunction with the situation where the vortex tongue strip is applied to an air-conditioning indoor unit, the vortex tongue strip of the present invention can obviously also be used in other scenarios. Such changes in the application scenario do not deviate from the basic principles of the present invention and fall within the scope of protection of the present invention.

[0041] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to having a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0042] In the application of vortex tongue strips in air-conditioning indoor units, the serrated structure shows significant advantages in optimizing airflow distribution, reducing vortices and enhancing airflow mixing efficiency due to its unique geometric shape. In the existing technology, this type of structure is usually designed with a straight middle parting line, which is perpendicular to the main flow direction of the wind field, aiming to guide the airflow to pass more smoothly while reducing the energy loss caused by the sudden change in the direction of the airflow. However, in actual applications, due to the limitations of the manufacturing process, such as insufficient mold precision, uneven wear and slight deviations in the assembly process, the serrated structure actually produced may be uneven at the middle parting line position, which directly affects the flow state of the airflow, causing the originally designed airflow path to be disturbed, and then affecting the air volume and noise level of the air supply. Especially under high wind speed conditions, this noise problem is particularly prominent, seriously affecting the operating efficiency of the equipment and the user experience.

[0043] First, see Figure 1 , Figure 1 This is a schematic structural diagram of a single sawtooth blade in a vortex strip for an air conditioner indoor unit provided by the present invention. Figure 1 As shown, the present invention provides a vortex strip 01 for an air conditioner indoor unit. The vortex strip 01 includes a base 1 and a plurality of serrated blades 2 arranged in an array on the base 1. The serrated blades 2 include a first guide blade 21 and a second guide blade 22 connected to each other. The first guide blade 21 is disposed above the second guide blade 22, and a step 23 is provided at the connecting surface between the first guide blade 21 and the second guide blade 22. Based on the above structural arrangement, the present invention provides a step 23 at the connecting surface between the first guide blade 21 and the second guide blade 22, thereby creating a bend in the middle parting line of the serrated blade 2. This reduces airflow loss at the connection between the first guide blade 21 and the second guide blade 22, thereby allowing more air to flow along the original path, that is, along the outer surface of the serrated blade 2. Therefore, the vortex strip for an air conditioner indoor unit provided by the present invention can increase the airflow volume. At the same time, due to the reduced airflow passing through the middle parting line, this solution can also reduce airflow noise, providing a good user experience. It should be noted that the present invention does not impose any restrictions on the specific structure and setting position of the first guide vane 21 and the second guide vane 22, and technicians can set them according to actual use requirements.

[0044] In this preferred embodiment, the first air guide blade 21 includes an oblique air guide surface 211 and a first curved air guide surface 212, and the second air guide blade 22 includes a second curved air guide surface 221, which is connected to the lower edge of the first curved air guide surface 212. It is understood that during operation of the air conditioner indoor unit, airflow sequentially passes through the oblique air guide surface, the first curved air guide surface, and the second curved air guide surface to complete the air supply operation. This reduces airflow loss at the connection between the first air guide blade 21 and the second air guide blade 22, thereby increasing the air volume supplied by the air conditioner indoor unit. Based on the above structural arrangement, the interconnected oblique air guide surface 211, the first curved air guide surface 212, and the second curved air guide surface 221 can guide airflow to change direction, thereby avoiding further air volume loss. It should be noted that the present invention does not impose any restrictions on the specific structure and location of the oblique air guide surface 211, the first curved air guide surface 212, and the second curved air guide surface 221. Those skilled in the art can freely determine these locations based on actual usage requirements.

[0045] In this preferred embodiment, the first curved air guide surface 212 and the second curved air guide surface 221 have the same curvature, so that when the airflow passes through the first curved air guide surface 212 and the second curved air guide surface 221 in sequence, their connecting surface transitions smoothly, further reducing air volume loss. It will be appreciated that if the curvatures of the two air guide surfaces were different, turbulence or eddies might be generated when the airflow transitions from one air guide surface to the other, thereby increasing air volume loss.

[0046] It should be noted that the present invention does not impose any restrictions on the specific structure and location of the step 23, and technicians can set it according to actual usage requirements. Alternatively, according to experimental data, it can be found that when the step 23 extends upward from the second curved air guide surface 221 along the side of the serrated blade 2 to the base 1, and the inclination angle of the step is in the range of 120°-150°, the airflow loss at the connection between the first guide blade 21 and the second guide blade 22 is minimized.

[0047] In this preferred embodiment, see Figure 2 , Figure 2 This is another perspective view of a single sawtooth blade in the vortex tongue strip for an air conditioner indoor unit provided by the present invention. Figure 2As shown, the width of the first curved air guide surface 212 is greater than the width of the second curved air guide surface 221, so that a protrusion 24 is formed at the bottom of the step 23. When the airflow passes through the first curved air guide surface 212 and reaches the second curved air guide surface 221, the volume of the space within the structure increases, thereby reducing the air pressure and reducing the air supply noise of the vortex tongue strip 01. It is understandable that during the air supply process of the air conditioner indoor unit, the airflow inevitably passes through the side of the serrated blade 2. When the airflow passes through the side of the serrated blade 2, the noise is easily caused by the generation of vortices and turbulence. In the present invention, when the airflow leaves the protrusion 24 after passing through the first curved air guide surface 212 and enters an area with increased volume, the air pressure is reduced, thereby slowing the change in flow velocity of the airflow when passing through the vortex tongue strip 01, reducing the formation of vortices and turbulence, and thus achieving the purpose of reducing air supply noise.

[0048] It should be noted that the present invention does not impose any restrictions on the specific structure and location of the protrusion 24, and technicians can set it according to actual use needs. Optionally, according to experimental data, it can be found that when the width of the protrusion 24 ranges from 0.05mm to 0.2mm, the air supply noise of the vortex tongue strip 01 is minimized.

[0049] In this preferred embodiment, there are two protrusions 24, located on either side of the first curved air-guiding surface 212. Because the protrusions 24 are located on both sides of the first curved air-guiding surface 212, when airflow passes through the first curved air-guiding surface 212, the airflow is affected not only on one side but also on the other. This reduces airflow noise on both sides of the first curved air-guiding surface 212, rather than just on one side. Furthermore, compared to a design with a single protrusion 24, two protrusions 24 can more evenly disperse and guide the airflow, reducing the vortices and turbulence generated when the airflow passes through the vortex tongue strip 01, thereby achieving a better noise reduction effect.

[0050] In this preferred embodiment, the two protrusions 24 are symmetrically arranged, so that the air on both sides of the same serrated blade 2 is similarly guided. This ensures that the air flows symmetrically on both sides of the serrated blade 2, reducing turbulence and eddies caused by uneven flow. Furthermore, the symmetrical arrangement of the protrusions 24 helps maintain air pressure balance on both sides of the serrated blade 2, helping to disperse and guide the airflow, allowing it to flow more smoothly through the entire air supply system.

[0051] Second, see Figure 3 , Figure 3 This is a structural diagram of the housing for the indoor unit of the air conditioner provided by the present invention. Figure 3 As shown, the present invention further provides an air-conditioning indoor unit, which includes the vortex tongue strip 01 for the air-conditioning indoor unit as described in the above embodiment.

[0052] In a third aspect, the present invention further provides an air conditioner, which includes the air conditioner indoor unit as described in the above embodiment.

[0053] It should be noted that the above-mentioned embodiment is only used to illustrate the principle of the present invention and is not intended to limit the scope of protection of the present invention. Without departing from the principle of the present invention, those skilled in the art can adjust the above-mentioned structure so that the present invention can be applied to more specific application scenarios.

[0054] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A scroll tongue strip for an air conditioner indoor unit, characterized in that: The vortex tongue strip comprises a base and a plurality of sawtooth blades. The plurality of sawtooth blades are arranged in an array on the base, The sawtooth blade includes a first air guide blade and a second air guide blade connected to each other, wherein the first air guide blade is arranged on the upper side of the second air guide blade. A step is provided on the connecting surface of the first air guide blade and the second air guide blade.

2. The scroll tongue strip for an air conditioner indoor unit according to claim 1, characterized in that: The first air guide blade includes an oblique air guide surface and a first arc-shaped air guide surface. The second air guide blade includes a second arc-shaped air guide surface, The second curved air guiding surface is connected to the lower edge of the first curved air guiding surface.

3. The scroll tongue strip for an air conditioner indoor unit according to claim 2, characterized in that: The first curved air guiding surface and the second curved air guiding surface have the same arc curvature.

4. The scroll tongue strip for an air conditioner indoor unit according to claim 2, characterized in that: The inclination angle of the step ranges from 120° to 150°.

5. The scroll tongue strip for an air conditioner indoor unit according to claim 2, characterized in that: The width of the first curved air guiding surface is greater than the width of the second curved air guiding surface, so that the bottom of the step forms a bulge.

6. The scroll tongue strip for an air conditioner indoor unit according to claim 5, characterized in that: The width of the protrusion ranges from 0.05 mm to 0.2 mm.

7. The scroll tongue strip for an air conditioner indoor unit according to claim 5, characterized in that: There are two protrusions, which are arranged on both sides of the first arc-shaped air-guiding surface.

8. The scroll tongue strip for an air conditioner indoor unit according to claim 7, characterized in that: The two protrusions are symmetrically arranged.

9. An air conditioner indoor unit, characterized in that: The air-conditioning indoor unit includes the vortex tongue strip for the air-conditioning indoor unit according to any one of claims 1 to 8.

10. An air conditioner, characterized in that: The air conditioner includes the air conditioner indoor unit according to claim 9.

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