Volute tongue and air conditioner

Abstract

The volute tongue comprises a volute tongue body and turbulent flow parts, the volute tongue body is provided with an air guide face facing a fan, the turbulent flow parts are arranged on the air guide face at intervals in the length direction of the volute tongue body, and each turbulent flow part comprises a plurality of arc-shaped turbulent flow strips arranged at intervals in the length direction of the volute tongue body. On a projection plane perpendicular to the height direction of the volute tongue body, in any two adjacent arc-shaped turbulent flow strips in each turbulent flow part, the length of the projection of the arc-shaped turbulent flow strip close to the center position of the turbulent flow part is larger than that of the projection of the arc-shaped turbulent flow strip away from the center position of the turbulent flow part. The volute tongue provided by the utility model can reduce the generation probability of turbulent flow and vortex in an air duct, and the air resistance and noise are low when the air conditioner runs.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioning technical field, concretely relates to a volute tongue and air conditioner. BACKGROUND

[0002] For the air conditioner using the cross-flow fan, the noise source is mainly the aerodynamic noise of the cross-flow fan blade. The rotating noise occupies the dominant position in the aerodynamic noise, and the rotating noise is formed by the interaction between the airflow and the surrounding volute tongue when the cross-flow fan blade rotates. In the related technology, in order to solve the rotating noise, the volute tongue is usually designed into a sawtooth volute tongue to reduce the area of the return air hitting on the volute tongue, but the sawtooth structure still causes the non-uniformity of the airflow during the operation of the cross-flow fan, and thus the noise is still generated and the local energy loss is caused. SUMMARY

[0003] The utility model aims at solving one of the technical problems in the related technology at least to some extent.

[0004] Therefore, the embodiment of the utility model provides a volute tongue, which can reduce the probability of turbulence and vortex generation in the air duct, and the air resistance and noise during the operation of the air conditioner are small.

[0005] The volute tongue of the utility model embodiment comprises a volute tongue body and a turbulence part, the volute tongue body is provided with a wind guide surface facing the fan, the turbulence part is arranged on the wind guide surface in a plurality of and interval along the length direction of the volute tongue body, the turbulence part comprises a plurality of arc turbulence strips arranged in interval along the length direction of the volute tongue body, in the projection plane perpendicular to the height direction of the volute tongue body, in any two adjacent arc turbulence strips in each turbulence part, the length of the projection of the arc turbulence strip adjacent to the center position of the turbulence part is greater than the length of the projection of the arc turbulence strip away from the center position of the turbulence part.

[0006] According to the volute tongue of the utility model embodiment, a plurality of turbulence parts arranged in interval along the length direction of the volute tongue body are arranged on the wind guide surface of the volute tongue body, the turbulence part comprises a plurality of arc turbulence strips arranged in interval along the length direction of the volute tongue body, and in the projection plane perpendicular to the height direction of the volute tongue body, the length of the projection of the arc turbulence strip in the center position of the turbulence part is the longest, and the length of the projection of the arc turbulence strip in the edge is the shortest, the shape of the turbulence part at this time is close to the shape of the shark skin surface scale, when the low-speed fluid close to the wind guide surface passes through the turbulence part, the turbulence part can effectively disturb the formation and development process of the vortex, effectively prevent the generation of large-scale vortex, also effectively reduce the generation of turbulence, the fluid flows more smoothly at this place, the energy loss is smaller, the air resistance and noise are lower at this place during the operation of the air conditioner, and the energy efficiency ratio of the air conditioner is higher.

[0007] In some embodiments, the plurality of arc-shaped turbulence strips in the turbulence portion includes a first turbulence strip, a second turbulence strip, and a third turbulence strip, the second turbulence strip is two and symmetrically arranged on both sides of the first turbulence strip, the third turbulence strip is two and symmetrically arranged on both sides of the first turbulence strip, and the third turbulence strip is located outside the second turbulence strip.

[0008] In some embodiments, in the projection plane perpendicular to the height direction of the snail tongue body, the length of the projection of the first turbulence strip is p1, the length of the projection of the second turbulence strip is p2, and the length of the projection of the third turbulence strip is p3, wherein 3.5mm≤p1≤5.5mm, 0.5*p1≤p2≤0.8*p1, and 0.25*p1≤p3≤0.5*p1.

[0009] In some embodiments, in the projection plane perpendicular to the length direction of the snail tongue body, the projection of the first turbulence strip away from the surface of the air guide face is an arc with a central angle q1, the projection of the second turbulence strip away from the surface of the air guide face is an arc with a central angle q2, and the projection of the third turbulence strip away from the surface of the air guide face is an arc with a central angle q3, wherein 108°≤q1≤130°, 80°≤q2≤104°, and 75°≤q3≤91°.

[0010] In some embodiments, the turbulence portion further includes two fourth turbulence strips arranged on the air guide face, and the two fourth turbulence strips are symmetrically arranged on both sides of the first turbulence strip.

[0011] In the projection plane perpendicular to the height direction of the snail tongue body, the projection of the fourth turbulence strip and the projection of the third turbulence strip are arranged along the length direction of the projection of the third turbulence strip, and the length of the projection of the fourth turbulence strip is less than the length of the projection of the third turbulence strip.

[0012] In some embodiments, the length of the projection of the fourth turbulence strip is p4, and 0.1*p1≤p4≤0.3*p1.

[0013] And / or, in the projection plane perpendicular to the length direction of the snail tongue body, the projection of the fourth turbulence strip away from the surface of the air guide face is an arc with a central angle q4, and 55°≤q4≤71°.

[0014] In some embodiments, the distance between any two adjacent turbulence portions is n1, and the distance between any two adjacent arc-shaped turbulence strips in each turbulence portion is n2, wherein n1=n2, and / or 1mm≤n2≤3mm.

[0015] In some embodiments, the width of any arc-shaped turbulence strip is m, wherein 0.8mm≤m≤3.5mm.

[0016] In some embodiments, along the extension direction of the arc-shaped spoiler strip, the height of any of the arc-shaped spoiler strips gradually decreases from the center position to both ends;

[0017] And / or, the maximum height of any of the arc-shaped spoiler strips is d, wherein d≤4mm.

[0018] The air conditioner according to the embodiments of the present application comprises the volute tongue as in any of the above embodiments.

[0019] The technical advantages of the air conditioner according to the embodiments of the present application are the same as those of the volute tongue in the above embodiments, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a top view of the volute tongue according to the embodiments of the present application.

[0021] Figure 2 is a top view of the spoiler part in the volute tongue according to the embodiments of the present application.

[0022] Figure 3 is a side view of the volute tongue according to the embodiments of the present application.

[0023] Figure 4 is an axonometric view of the volute tongue according to the embodiments of the present application.

[0024] LIST OF REFERENCE NUMBERS:

[0025] 1, volute tongue body; 11, air guide surface; 2, spoiler part; 21, first spoiler strip; 22, second spoiler strip; 23, third spoiler strip; 24, fourth spoiler strip. DETAILED DESCRIPTION

[0026] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0027] The volute tongue according to the embodiments of the present application will be described below in combination with Figures 1-4

[0028] ​The volute tongue body 1 is provided with a wind guide surface 11 facing the fan.

[0029] According to the volute tongue, the multiple turbulence portions 2 are arranged on the wind guide surface 11 of the volute tongue body 1 in the length direction of the volute tongue body 1, the turbulence portion 2 includes the multiple arc-shaped turbulence strips arranged in the length direction of the volute tongue body 1, and on the projection plane perpendicular to the height direction of the volute tongue body 1, the projection length of the arc-shaped turbulence strip located at the center position of the turbulence portion 2 is the longest, and the projection length of the arc-shaped turbulence strip located at the edge is the shortest, the shape of the turbulence portion 2 is close to the shape of the shark skin surface scale at this time, when the low-speed fluid close to the wind guide surface 11 passes through the turbulence portion 2, the turbulence portion 2 can effectively disturb the formation and development process of the vortex, effectively prevent the generation of large-scale vortex, and effectively reduce the generation of turbulence, the fluid flows more smoothly at this place, the energy loss is smaller, the air resistance and noise are lower at this place when the air conditioner is running, and the energy efficiency ratio of the air conditioner is higher.

[0030] It should be noted that on the projection plane perpendicular to the height direction of the volute tongue body 1, the projection contour of the turbulence portion 2 is basically the same as the contour of the shark skin surface scale, and is also in the shape of a shield.

[0031] In some embodiments, as shown in Figure 2 and Figure 3 The multiple arc-shaped turbulence strips in the turbulence portion 2 include a first turbulence strip 21, a second turbulence strip 22 and a third turbulence strip 23, the second turbulence strip 22 is provided on both sides of the first turbulence strip 21 in a symmetrical manner, the third turbulence strip 23 is provided on both sides of the first turbulence strip 21 in a symmetrical manner, and the third turbulence strip 23 is located outside the second turbulence strip 22.

[0032] At this time, the multiple grooves formed by the turbulence portion 2 are closer to the grooves on the shark skin surface scale, and can better disturb the formation and development process of the vortex, effectively prevent the generation of large-scale vortex, further reduce the generation probability of turbulence, the fluid flows more smoothly at this place, the energy loss is smaller, the air resistance and noise are lower at this place when the air conditioner is running, and the energy efficiency ratio of the air conditioner is higher.

[0033] Specifically, on a projection plane perpendicular to the length direction of the volute tongue body 1, the projection of the second turbulence strip 22 in the length direction is located inside the projection of the first turbulence strip 21 in the length direction, and the projection of the third turbulence strip 23 in the length direction is located inside the projection of the second turbulence strip 22 in the length direction.

[0034] In some embodiments, as shown in FIG. 2, on a projection plane perpendicular to the height direction of the volute tongue body 1, the length of the projection of the first turbulence strip 21 is p1, the length of the projection of the second turbulence strip 22 is p2, and the length of the projection of the third turbulence strip 23 is p3, where 3.5mm≤p1≤5.5mm, 0.5*p1≤p2≤0.8*p1, and 0.25*p1≤p3≤0.5*p1. Figure 2

[0035] At this time, the turbulence part 2 can better reduce the conversion of laminar flow to turbulent flow, reduce the generation of turbulent flow, and more reliably disturb the formation and development process of vortexes. The fluid flows more smoothly at the air guide surface 11, the air resistance is smaller, and the noise generated during the operation of the air conditioner is smaller.

[0036] Specifically, p1 can be 3.5mm, 4mm, 4.5mm, 5mm, and 5.5mm, p2 can be 0.5 times, 0.75 times, and 1 times of p1, and p3 can be 0.25 times, 0.4 times, and 0.5 times of p1.

[0037] In some embodiments, as shown in FIG. 2, on a projection plane perpendicular to the length direction of the volute tongue body 1, the projection of the first turbulence strip 21 away from the surface of the air guide surface 11 is an arc with a central angle of q1, the projection of the second turbulence strip 22 away from the surface of the air guide surface 11 is an arc with a central angle of q2, and the projection of the third turbulence strip 23 away from the surface of the air guide surface 11 is an arc with a central angle of q3, where 108°≤q1≤130°, 80°≤q2≤104°, and 75°≤q3≤91°. Figure 3 The arc surface design of the first turbulence strip 21 to the third turbulence strip 23 away from the air guide surface 11, combined with the above parameter settings, makes the low-speed airflow passing through the first turbulence strip 21 to the third turbulence strip 23 more smoothly, the air resistance is lower, and the noise generated during the operation of the air conditioner is smaller.

[0038] Specifically, q1 can be 108°, 120°, and 130°, q2 can be 80°, 90°, and 104°, and q3 can be 75°, 80°, and 91°.

[0039] In some embodiments, as shown in FIG. 2, on a projection plane perpendicular to the length direction of the volute tongue body 1, the projection of the first turbulence strip 21 away from the surface of the air guide surface 11 is an arc with a central angle of q1, the projection of the second turbulence strip 22 away from the surface of the air guide surface 11 is an arc with a central angle of q2, and the projection of the third turbulence strip 23 away from the surface of the air guide surface 11 is an arc with a central angle of q3, where 108°≤q1≤130°, 80°≤q2≤104°, and 75°≤q3≤91°.

[0040] Figure 2 ​​As shown, the turbulence portion 2 further comprises two fourth turbulence strips 24 arranged on the air guide surface 11, and the two fourth turbulence strips 24 are symmetrically arranged on both sides of the first turbulence strip 21. In the projection plane perpendicular to the height direction of the volute tongue body 1, the projection of the fourth turbulence strip 24 and the projection of the third turbulence strip 23 are arranged in the length direction of the projection of the third turbulence strip 23, and the length of the projection of the fourth turbulence strip 24 is less than the length of the projection of the third turbulence strip 23.

[0041] At this time, the shape of the turbulence portion 2 is closer to the shape of the shark skin surface scale, and the formation and development process of the vortex can be better disturbed, the generation of large-scale vortex can be effectively prevented, the generation probability of turbulence is further reduced, the fluid flows more smoothly at this place, the energy loss is smaller, the air resistance and noise are lower when the air conditioner is running, and the energy efficiency ratio of the air conditioner is higher.

[0042] Specifically, the two fourth turbulence strips 24 are located on the same side of the corresponding third turbulence strip 23 in the length direction thereof.

[0043] In some embodiments, the length of the projection of the fourth turbulence strip 24 is p4, and 0.1*p1≤p4≤0.3*p1. In the projection plane perpendicular to the length direction of the volute tongue body 1, the projection of the surface away from the air guide surface 11 of the fourth turbulence strip 24 is an arc line, and the central angle is q4, and 55°≤q4≤71°.

[0044] The arrangement makes the turbulence portion 2 better reduce the conversion from laminar flow to turbulent flow, reduce the generation of turbulence, and more reliably disturb the formation and development process of the vortex, so that the fluid flows more smoothly at the air guide surface 11, the air resistance is smaller, and the noise generated when the air conditioner is running is smaller.

[0045] Specifically, p4 can be 0.1 times, 0.2 times and 0.3 times of p1, and q4 can be 55°, 60°, 65° and 71°.

[0046] In some embodiments, the distance between any two adjacent turbulence portions 2 is n1, and the distance between any two adjacent arc-shaped turbulence strips in each turbulence portion 2 is n2, wherein n1=n2, and / or 1mm≤n2≤3mm.

[0047] Therefore, when the low-speed airflow passes through any region of the air guide surface 11 in the length direction thereof, the airflow is disturbed by the turbulence portion 2 to reduce the formation of turbulence and large-size vortex, the energy efficiency ratio is higher when the air conditioner is running, and the noise generated is smaller.

[0048] Specifically, n1 and n2 can be 1mm, 2mm and 3mm.

[0049] In some embodiments, the width of any of the arc-shaped turbulence strips is m, wherein 0.8mm≤m≤3.5mm.

[0050] The arrangement not only makes the size of the spoiler 2 closer to the size of the shark skin surface scale, thereby having better drag reduction and noise reduction effects, but also effectively avoids the situation that the width of the arc-shaped spoiler strip is too small, thereby increasing the manufacturing difficulty and manufacturing cost of the spoiler 2.

[0051] Specifically, the spoiler 2 and the volute tongue body 1 are integrally formed, and m can be 0.8 mm, 2 mm, 3 mm and 3.5 mm.

[0052] In some embodiments, as shown in Figure 3 As shown, along the extension direction of the arc-shaped spoiler strip, the height of any arc-shaped spoiler strip gradually decreases from the center position to both ends.

[0053] Therefore, the air flow has smaller resistance when passing through the arc surface of the arc-shaped spoiler strip away from the air guide surface 11, and the energy efficiency ratio of the air conditioner is higher.

[0054] In some embodiments, the maximum height of any arc-shaped spoiler strip is d, wherein d≤4 mm. Therefore, the arc-shaped spoiler strip effectively avoids occupying too much space between the air guide surface 11 and the fan, and ensures that it effectively reduces the generation of turbulence and vortex, thereby ensuring that the air conditioner has a higher energy efficiency ratio and smaller noise.

[0055] Specifically, d can be 2 mm, 3 mm and 4 mm.

[0056] The air conditioner according to the embodiments of the present application comprises the volute tongue according to any one of the above embodiments.

[0057] The technical advantages of the air conditioner according to the embodiments of the present application are the same as those of the volute tongue according to the above embodiments, which will not be repeated here.

[0058] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0059] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and do not connote or imply any relative importance or any meaning pertaining to the quantity of the features being described. Thus, a feature defined with "first", "second", etc. can include at least one of the features, explicitly or implicitly. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless specifically defined otherwise.

[0060] In the present application, unless specifically defined and limited otherwise, the terms "mounting", "connecting", "connection", "fixed", and the like should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection or communication with each other; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless specifically defined otherwise. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0061] In the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0062] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present application and the features of different embodiments or examples, without contradiction.

[0063] Although the above embodiments have been shown and described, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. Changes, modifications, replacements and variations of the above embodiments made by those skilled in the art are within the scope of the present application.

Claims

1. A cochlear tongue, characterized in that, include: The volute tongue body (1) is provided with a guide surface (11) facing the fan; The turbulence section (2) has multiple sections and is arranged at intervals along the length direction of the volute body (1) on the air guide surface (11). The turbulence section (2) includes multiple arc-shaped turbulence strips arranged at intervals along the length direction of the volute body (1). On the projection plane perpendicular to the height direction of the volute body (1), in any two adjacent arc-shaped turbulence strips in each turbulence section (2), the projection length of the arc-shaped turbulence strip near the center position of the turbulence section (2) is greater than the projection length of the arc-shaped turbulence strip far from the center position of the turbulence section (2).

2. The cochlear tongue according to claim 1, characterized in that, The plurality of arc-shaped spoilers in the spoiler section (2) include a first spoiler (21), a second spoiler (22) and a third spoiler (23). There are two second spoilers (22) symmetrically arranged on both sides of the first spoiler (21). There are two third spoilers (23) symmetrically arranged on both sides of the first spoiler (21). The third spoiler (23) is located outside the second spoiler (22).

3. The cochlear tongue according to claim 2, characterized in that, On the projection plane perpendicular to the height direction of the volute tongue body (1), the length of the projection of the first spoiler strip (21) is p1, the length of the projection of the second spoiler strip (22) is p2, and the length of the projection of the third spoiler strip (23) is p3, wherein 3.5mm≤p1≤5.5mm, 0.5*p1≤p2≤0.8*p1, and 0.25*p1≤p3≤0.5*p1.

4. The cochlear tongue according to claim 2, characterized in that, On the projection plane perpendicular to the length direction of the volute tongue body (1), the projection of the first baffle strip (21) away from the surface of the air guide surface (11) is an arc with a central angle of q1, the projection of the second baffle strip (22) away from the surface of the air guide surface (11) is an arc with a central angle of q2, and the projection of the third baffle strip (23) away from the surface of the air guide surface (11) is an arc with a central angle of q3, wherein 108°≤q1≤130°, 80°≤q2≤104°, and 75°≤q3≤91°.

5. The cochlear tongue according to claim 3, characterized in that, The turbulence section (2) further includes two fourth turbulence strips (24) disposed on the air guide surface (11), and the two fourth turbulence strips (24) are symmetrically disposed on both sides of the first turbulence strip (21); On the projection plane perpendicular to the height direction of the volute tongue body (1), the projections of the fourth spoiler (24) and the third spoiler (23) are arranged at intervals along the length direction of the projection of the third spoiler (23), and the length of the projection of the fourth spoiler (24) is less than the length of the projection of the third spoiler (23).

6. The cochlear tongue according to claim 5, characterized in that, The length of the projection of the fourth spoiler strip (24) is p4, 0.1*p1≤p4≤0.3*p1; And / or, on the projection plane perpendicular to the length direction of the volute body (1), the projection of the fourth turbulence strip (24) away from the surface of the air guide surface (11) is an arc with a central angle of q4, 55°≤q4≤71°.

7. The cochlear tongue according to any one of claims 1-6, characterized in that, The distance between any two adjacent spoiler sections (2) is n1, and the distance between any two adjacent arc-shaped spoiler strips in each spoiler section (2) is n2, where n1 = n2, and / or 1mm ≤ n2 ≤ 3mm.

8. The cochlear tongue according to any one of claims 1-6, characterized in that, The width of any of the arc-shaped spoilers is m, where 0.8mm ≤ m ≤ 3.5mm.

9. The cochlear tongue according to any one of claims 1-6, characterized in that, Along the extension direction of the arc-shaped spoiler, the height of any arc-shaped spoiler gradually decreases from the center position towards both ends; And / or, the maximum height of any of the said arc-shaped spoilers is d, where d≤4mm.

10. An air conditioner, characterized in that, Including the cochlear tongue according to any one of claims 1-9.

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