CN115978769A - Air duct structure and air conditioner with same - Google Patents
Air duct structure and air conditioner with same Download PDFInfo
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- CN115978769A CN115978769A CN202211652739.1A CN202211652739A CN115978769A CN 115978769 A CN115978769 A CN 115978769A CN 202211652739 A CN202211652739 A CN 202211652739A CN 115978769 A CN115978769 A CN 115978769A
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Abstract
The invention relates to the field of air ducts, and provides an air duct structure and an air conditioner with the same. Wherein, the wind channel structure includes: the air outlet duct extends along the height direction of the air duct structure, and the air outlet is positioned on the front side of the air outlet duct; the air deflector is arranged in the air outlet duct and used for guiding the airflow in the air outlet duct to the air outlet; the molded lines of the air outlet duct comprise back molded lines, and the back molded lines comprise externally convex line segments which are arranged corresponding to the air guide plates and used for ensuring the air outlet distance between the back wall surface of the air outlet duct and the air guide plates. The back molded lines of the air outlet duct of the air duct structure are optimized, and the outer convex line segments are arranged, so that the distance between the air duct back wall surface and the air deflector is increased, the utilization rate of the air outlet at the air deflector is improved, the low-speed area and the vortex inside the air outlet are eliminated, the area of the high-pressure area in the air outlet is reduced, the flow resistance of the air outlet is further reduced, and the air volume of the whole air conditioner is improved.
Description
Technical Field
The invention relates to the field of air ducts, in particular to an air duct structure and an air conditioner with the same.
Background
In the related art, an air deflector is usually arranged at an air outlet to guide the air flow in an air outlet duct to the air outlet positioned in front, but due to the size limitation of the air outlet of the up-and-down distributed air supply cabinet air conditioner, if the air duct profile of the air outlet duct is unreasonable, when the air deflector is in a forward-inclined state, the air deflector can partially shield the air outlet at the air deflector, and the air outlet interval between the back wall surface of the air outlet duct and the air deflector is small, so that the utilization rate of the air outlet at the air deflector is low, the flow resistance is large, a vortex is easy to form, and a low-speed area and a high-pressure area with a large area exist.
Disclosure of Invention
In order to solve the technical problem that the air outlet distance between the air deflector and the back wall surface of the air outlet duct is small due to unreasonable air duct profile arrangement of the air outlet duct in the related art, an air duct structure and an air conditioner with the air duct structure are provided.
According to an aspect of the present invention, there is provided an air duct structure including: the air outlet duct extends along the height direction of the air duct structure, and the air outlet is positioned on the front side of the air outlet duct; the air deflector is arranged in the air outlet duct and used for guiding the airflow in the air outlet duct to the air outlet; the molded lines of the air outlet duct comprise back molded lines, and the back molded lines comprise externally convex line segments which are arranged corresponding to the air guide plates and used for ensuring the air outlet distance between the back wall surface of the air outlet duct and the air guide plates.
Further, the convex molded line section comprises one or more of a curved line section and a broken line section.
Further, the convex line section is a curve section, the curve section comprises a first arc line section, the distance between the first arc line section and the vertical surface where the top point of the first arc line section is located is gradually increased, and the first arc line section and the air deflector are arranged correspondingly.
Furthermore, the convex line section is a broken line section, the broken line section comprises a first inclined straight line section which inclines outwards, and the first inclined straight line section is arranged corresponding to the air deflector.
Furthermore, the air deflector is rotatably arranged in the air outlet duct, and the convex molded line section is correspondingly arranged below the rotating center of the air deflector, so that when the air deflector rotates to a forward-inclined state, the air outlet distance between the back wall surface of the air outlet duct and the air deflector is ensured.
Furthermore, a plurality of air deflectors are arranged at intervals along the front and rear directions of the air outlet duct, and the rotation centers of the plurality of air deflectors are all on the same reference straight line.
Furthermore, the intersection point of the reference straight line and the back molded line is the vertex of the outward convex line segment; the outer convex line segment is an arc line segment, the included angle between the tangent line at the vertex of the arc line segment and the reference straight line is alpha, and the value range of the alpha is as follows: alpha is more than or equal to 60 degrees and less than or equal to 85 degrees; or the outward convex line segment is a first inclined straight line segment inclined outwards, the included angle between the first inclined straight line segment and the reference straight line is alpha, and the value range of the alpha is as follows: alpha is more than or equal to 95 degrees and less than or equal to 115 degrees.
Further, the reference straight line is disposed obliquely with respect to the horizontal line.
Furthermore, the molded lines of the air outlet duct also comprise front molded lines; the included angle between the horizontal line where the intersection point of the reference straight line and the front molded line is located and the reference straight line is beta, and the value range of the beta is as follows: beta is more than or equal to 160 degrees and less than or equal to 180 degrees.
Furthermore, the molded lines of the air outlet duct also comprise front molded lines; the distance between the intersection point of the reference straight line and the back molded line and the rotation center of the air deflector closest to the intersection point is n; the distance between the intersection point of the reference straight line and the front molded line and the rotation center of the air deflector closest to the intersection point is also n; the horizontal distance between the intersection point of the reference straight line and the back molded line and the intersection point of the reference straight line and the front molded line is p; the number of the air deflectors is z; the distance between two adjacent air deflectors is m, and the value range of m is: m = (p-2 × n)/(z-1).
Further, n is more than or equal to 15mm and less than or equal to 35mm; and/or z is more than or equal to 3 and less than or equal to 9; and/or p is more than or equal to 180mm and less than or equal to 250mm.
Furthermore, the air outlet is an upper air outlet, and the molded lines of the air outlet duct also comprise a molded line at the top end; the top end molded line comprises a second inclined straight line section which is inclined downwards towards one side of the air outlet.
Further, an included angle between the second oblique straight line segment and the horizontal line is γ, and a value range of γ is as follows: gamma is more than or equal to 5 degrees and less than or equal to 10 degrees.
Furthermore, the air outlet is an upper air outlet, and the molded lines of the air outlet duct also comprise a front molded line and a top molded line; from back to front, the top molded line comprises a first straight line segment AB and a first arc segment BC which are connected in sequence; the front molded line comprises a second straight line segment CD, a third straight line segment DE, a second arc segment EF, a fourth straight line segment FG and a fifth straight line segment GH which are connected in sequence, and the fourth straight line segment FG extends along the horizontal direction; the back molded line comprises a third arc line segment AL, a sixth line segment LK, a fourth arc line segment KJ and a seventh line segment J I which are sequentially connected, and the fourth arc line segment KJ is an outer convex line segment; or the back molded line comprises a third arc line segment AL, a sixth straight line segment LK, a seventh straight line segment KQ, an eighth straight line segment QJ and a ninth straight line segment J I which are connected in sequence, and the seventh straight line segment KQ is an outward convex molded line segment.
Furthermore, the air deflectors are rotatably arranged in the air outlet duct, and the air deflectors are arranged at intervals along the front-rear direction of the air outlet duct; a connection line of a vertex K of the outer convex line segment and a vertex G of the fifth straight line segment GH is a reference straight line segment GK, and the rotation centers of the plurality of air deflectors are all on the reference straight line segment GK; the number of the air deflectors is z, and z is more than or equal to 3 and less than or equal to 9; the horizontal distance between the vertex K of the outer convex line segment and the rotation center of the air deflector closest to the outer convex line segment is n, the horizontal distance between the vertex G of the fifth straight line segment GH and the rotation center of the air deflector closest to the fifth straight line segment is also n, and n is more than or equal to 15mm and less than or equal to 35mm; the horizontal distance between the vertex K of the outer convex line segment and the vertex G of the fifth straight line segment GH is p, and p is more than or equal to 180mm and less than or equal to 250mm; the horizontal distance between two adjacent air deflectors is m, and the value range of m is as follows: m = (p-2 × n)/(z-1); the included angle between the first straight line segment AB and the horizontal line is gamma, and the gamma is more than or equal to 5 degrees and less than or equal to 10 degrees; an included angle between the reference straight line segment GK and the fourth straight line segment FG is beta, and beta is more than or equal to 160 degrees and less than or equal to 180 degrees; the value range of the curvature radius of each point on the fourth arc segment KJ is more than or equal to 150mm and less than or equal to 450mm, the included angle between the tangent of the vertex K of the fourth arc segment and the reference straight-line segment GK is alpha, and alpha is more than or equal to 60 degrees and less than or equal to 85 degrees; or the vertical distance of the KQ of the seventh straight-line segment is s, s is more than or equal to 55mm and less than or equal to 70mm, the included angle between the KQ of the seventh straight-line segment and the GK of the reference straight-line segment is alpha, and alpha is more than or equal to 95 degrees and less than or equal to 115 degrees.
Further, the air duct structure also comprises a volute; the fan is positioned in the center of the volute; the main air duct is communicated with the volute; the air outlet duct is communicated with the main air duct; external air flow is sucked into the volute by the fan, the volute guides the air flow to the main air duct, then the air flow enters the air outlet air duct, passes through the air deflector and flows out of the air outlet.
According to another aspect of the present invention, there is also provided an air conditioner including the air duct structure described above.
By applying the technical scheme of the invention, the back molded line of the air outlet duct of the duct structure is optimized, namely the externally convex line segment arranged corresponding to the air deflector is arranged, so that the distance between the back wall surface of the duct and the air deflector is increased, the air outlet distance between the back wall surface of the duct and the air deflector is ensured, the utilization rate of the air outlet at the air deflector is improved, the low-speed area and the vortex inside the air outlet are eliminated, the area of the high-pressure area inside the air outlet is reduced, the flow resistance of the air outlet is further reduced, and the air volume of the whole machine is improved.
Drawings
FIG. 1 is a schematic view showing a structure of a duct in the related art;
FIG. 2 is a schematic view of a duct structure according to a first embodiment of the present invention;
FIG. 3 shows an enlarged view of a portion of the structure of the air duct structure of FIG. 2;
FIG. 4 shows a streamline comparison diagram of the air duct structure of FIG. 2 with the air duct structure of FIG. 1;
FIG. 5 is a graph illustrating a comparison of the velocity profiles of the air duct structure of FIG. 2 and the air duct structure of FIG. 1;
FIG. 6 is a graph showing a pressure distribution comparison of the air duct structure of FIG. 2 with the air duct structure of FIG. 1;
FIG. 7 is a schematic view showing the structure of a duct according to the second embodiment of the present invention;
FIG. 8 is an enlarged view of a portion of the air duct structure of FIG. 7;
FIG. 9 shows a streamline comparison of the air duct structure of FIG. 7 with the air duct structure of FIG. 1;
FIG. 10 is a graph showing a comparison of the velocity profiles of the air duct structure of FIG. 7 and the air duct structure of FIG. 1;
FIG. 11 shows a graph comparing the pressure distribution of the air duct structure of FIG. 7 with the air duct structure of FIG. 1.
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention.
In the drawings:
1. an air outlet duct; 11. back molded lines; 111. an outward convex line segment; 12. a top profile; 13. a front profile; 2. an air outlet; 3. an air deflector; 4. a volute; 5. a fan; 6. the main air duct.
Detailed Description
In order to make those skilled in the art better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides an air duct structure and an air conditioner with the same, and aims to solve the technical problem that the air outlet distance between an air deflector and the back wall surface of an air outlet duct is small due to unreasonable air duct profile arrangement of the air outlet duct in the related art.
As shown in fig. 1, in the related art, the profile of the air duct of the air outlet duct is unreasonable, the air outlet distance between the air deflector and the back wall of the air outlet duct is small, so that the air deflector partially blocks the air outlet at the air deflector, and the air outlet distance between the back wall of the air outlet duct and the air deflector is small, so that the air outlet at the air deflector has a low utilization rate, a large flow resistance, and is easy to form an eddy current, and a large area of low-speed area and a large area of high-pressure area exist.
As shown in fig. 2, 3, 7 and 8, the air duct structure includes: the air outlet duct 1 extends along the height direction of the air duct structure, and the air outlet 2 is positioned on the front side of the air outlet duct 1; the air deflector 3 is arranged in the air outlet duct 1 and used for guiding the air flow in the air outlet duct 1 to the air outlet 2; the molded line of the air outlet duct 1 includes a back molded line 11, and the back molded line 11 includes a convex molded line section 111 corresponding to the air deflector 3, so as to ensure an air outlet distance between the back wall surface of the air outlet duct 1 and the air deflector 3.
Like this, the back molded lines 11 of the air outlet duct 1 of the air duct structure is optimized, that is, the outer convex line segments 111 corresponding to the air deflectors 3 are arranged, so that the distance between the air duct back wall surface and the air deflectors 3 is increased, the air outlet distance between the air duct back wall surface and the air deflectors 3 is ensured, the utilization rate of the air outlet at the air deflectors 3 is improved, low-speed areas and vortexes inside the air outlet are eliminated, the area of high-pressure areas in the air outlet is reduced, the flow resistance of the air outlet is further reduced, and the air volume of the whole air conditioner is improved.
Optionally, the convex-shaped profile section 111 includes one or more of a curved section and a broken section. The shape of the outer convex line 111 is within the protection scope of the present application as long as the air outlet distance between the air duct back wall surface and the air deflector 3 can be ensured.
Optionally, the convex molded line segment 111 is a curved line segment, the arc line segment includes a first arc line segment, a distance between the first arc line segment and a vertical plane where a vertex of the first arc line segment is located is gradually increased, and the first arc line segment is arranged corresponding to the air deflector 3. Like this, the interval between first arc line segment and the aviation baffle 3 is great to can guarantee the air-out interval between wind channel back of the body wall face and the aviation baffle 3.
Optionally, the convex molded line segment 111 is a broken line segment, the broken line segment includes a first inclined straight line segment inclined outward, and the first inclined straight line segment is arranged corresponding to the air deflector 3. Therefore, the distance between the first inclined straight line section and the air guide plate 3 is large, and the air outlet distance between the air duct back wall surface and the air guide plate 3 can be ensured.
Optionally, the air guiding plate 3 is rotatably disposed in the air outlet duct 1, and the outward convex line 111 is correspondingly disposed below the rotation center of the air guiding plate 3, so as to ensure an air outlet distance between the back wall surface of the air outlet duct 1 and the air guiding plate 3 when the air guiding plate 3 rotates to the forward tilting state. Therefore, the air outlet angle can be changed by adjusting the angle of the air deflector 3, and when the air deflector 3 rotates to the maximum forward-inclined angle, the distance between the convex molded line section 111 and the air deflector 3 is larger, so that the air outlet distance between the air duct back wall surface and the air deflector 3 can be ensured.
Optionally, the air deflectors 3 are arranged at intervals along the front-back direction of the air outlet duct 1, and the rotation centers of the air deflectors 3 are all on the same reference straight line. Therefore, the air guide effect is better, and the parametric design and the installation of the air guide plate 3 are convenient.
Alternatively, a fixed inclined air deflector 3 is also within the scope of the present application.
Alternatively, it is within the scope of the present application to provide only one air deflector 3.
Optionally, the intersection point of the reference straight line and the back profile 11 is the vertex of the convex profile segment 111; the convex line segment 111 is an arc line segment, the included angle between the tangent line at the vertex of the arc line segment and the reference straight line is alpha, and the value range of alpha is as follows: alpha is more than or equal to 60 degrees and less than or equal to 85 degrees. When the parameters are set within the above numerical range, the effect is better.
Optionally, the intersection point of the reference straight line and the back profile 11 is the vertex of the convex profile segment 111; the outward convex line segment 111 is a first inclined straight line segment inclined outwards, the included angle between the first inclined straight line segment and the reference straight line is alpha, and the value range of the alpha is as follows: alpha is more than or equal to 95 degrees and less than or equal to 115 degrees. When the parameters are set within the above numerical ranges, the effect is better.
Alternatively, the reference straight line is disposed obliquely to the horizontal line. Thus, the air guide plate 3 has a better air guide effect.
Optionally, the reference straight line is inclined downwards towards one side of the air outlet.
Optionally, the molded lines of the air outlet duct 1 further include a front molded line 13; the included angle between the horizontal line where the intersection point of the reference straight line and the front molded line 13 is located and the reference straight line is beta, and the value range of beta is as follows: beta is more than or equal to 160 degrees and less than or equal to 180 degrees. When the parameters are set within the above numerical range, the effect is better.
Optionally, the molded lines of the air outlet duct 1 further include a front molded line 13; the distance between the intersection point of the reference straight line and the back molded line 11 and the rotation center of the air deflector 3 closest to the intersection point is n; the distance between the intersection point of the reference straight line and the front molded line 13 and the rotation center of the air deflector 3 closest to the intersection point is also n; the horizontal distance between the intersection point of the reference straight line and the back molded line 11 and the intersection point of the reference straight line and the front molded line 13 is p; the number of the air deflectors 3 is z; the distance between two adjacent air deflectors 3 is m, and the value range of m is: m = (p-2 × n)/(z-1).
Optionally, n is more than or equal to 15mm and less than or equal to 35mm; and/or z is more than or equal to 3 and less than or equal to 9; and/or p is more than or equal to 180mm and less than or equal to 250mm. When the parameters are set within the above numerical range, the effect is better.
Optionally, the air outlet 2 is an upper air outlet, and the profile of the air outlet duct 1 further includes a top profile 12; the top profile 12 comprises a second inclined straight line section inclined downwards towards one side of the air outlet 2.
Optionally, an included angle between the second oblique straight line segment and the horizontal line is γ, and a value range of γ is: gamma is more than or equal to 5 degrees and less than or equal to 10 degrees. When the parameters are set within the above numerical range, the effect is better.
Optionally, as shown in fig. 2 and 7, the air duct structure further includes a volute 4; the fan 5 is positioned in the center of the volute 4; the main air duct 6, the main air duct 6 communicates with volute 4; the air outlet duct 1, the air outlet duct 1 communicates with main air duct 6; external air flow is sucked into the volute by the fan, the volute guides the air flow to the main air duct 6, then the air flow enters the air outlet duct 1, and the air flow passes through the air deflector 3 and flows out of the air outlet 2.
The present application provides two embodiments for how the outward convex line section 111 is arranged, in the first embodiment, the outward convex line section 111 is an arc line section KJ, and the difference between the second embodiment and the first embodiment is that the outward convex line section 111 is a broken line section including a straight line section KQ and a straight line section QJ.
Example one
As shown in fig. 3, the profile of the air outlet duct 1 is formed by connecting 4 curves and 7 straight lines.
As shown in fig. 3, the air outlet 2 is an upper air outlet, and the profile of the air outlet duct 1 further includes a front profile 13 and a top profile 12; from back to front, the top-end molded line 12 comprises a first straight line segment AB and a first arc segment BC which are connected in sequence; the front-side molded line 13 comprises a second straight-line segment CD, a third straight-line segment DE, a second arc-shaped segment EF, a fourth straight-line segment FG and a fifth straight-line segment GH which are connected in sequence, and the fourth straight-line segment FG extends along the horizontal direction; the back molded line 11 includes a third arc segment AL, a sixth straight segment LK, a fourth arc segment KJ and a seventh straight segment J I, which are connected in sequence, and the fourth arc segment KJ is an outer convex segment 111.
This application reduces the inside flow resistance in air-out wind channel for improving the air outlet utilization ratio. The curvature radius of each point of the fourth arc segment KJ, the included angle between the tangent of the fourth arc segment KJ at the point K and the reference straight-line segment GK, the angle between the fourth straight-line segment FG and the reference straight-line segment GK, and the horizontal distance n need to be limited, so that the distance between the air deflector and the wall surface of the air duct in the forward tilting state and the air opening blockage caused by the air deflector are ensured. When the parameter design is adopted, the molded line of the back of the air outlet duct is a curve, so that the distance between the wall surface of the air duct and the leftmost air deflector can be increased.
Optionally, the air deflectors 3 are rotatably disposed in the air outlet duct 1, and the air deflectors 3 are disposed at intervals along the front-back direction of the air outlet duct 1; a connecting line of a vertex K of the outer convex line section 111 and a vertex G of the fifth straight line section GH is a reference straight line section GK, and the rotation centers of the air deflectors 3 are all on the reference straight line section GK; the number of the air deflectors 3 is z, and z is more than or equal to 3 and less than or equal to 9; the horizontal distance between the vertex K of the outward convex line section 111 and the rotation center of the air deflector 3 closest to the outward convex line section is n, the horizontal distance between the vertex G of the fifth straight line section GH and the rotation center of the air deflector 3 closest to the fifth straight line section is also n, and n is more than or equal to 15mm and less than or equal to 35mm; the horizontal distance between the vertex K of the outer convex line segment 111 and the vertex G of the fifth straight line segment GH is p, and p is more than or equal to 180mm and less than or equal to 250mm; the horizontal distance between two adjacent air deflectors 3 is m, and the value range of m is as follows: m = (p-2 x n)/(z-1); the included angle between the first straight line segment AB and the horizontal line is gamma, and the gamma is more than or equal to 5 degrees and less than or equal to 10 degrees; an included angle between the reference straight line segment GK and the fourth straight line segment FG is beta, and beta is more than or equal to 160 degrees and less than or equal to 180 degrees; the value range of the curvature radius of each point on the fourth arc segment KJ is more than or equal to 150mm and less than or equal to 450mm, the included angle between the tangent of the vertex K of the fourth arc segment and the reference straight-line segment GK is alpha, and alpha is more than or equal to 60 degrees and less than or equal to 85 degrees. When the parameters are set within the above numerical range, the effect is better.
Preferably, z =5, n =20mm, p =198mm, α =64 °, β =175 °, γ =8 °. When the parameters are set within the above numerical ranges, the effect is better.
Experimental test data show that the parameter design method can effectively improve the air volume of the whole machine by about 23m 3 H is used as the reference value. As shown in fig. 4, 5 and 6 after improvement, the air outlet duct designed by the parameter design method can improve the utilization rate of the air outlet, eliminate the vortex inside the duct, reduce the low-speed area and the high-pressure area, reduce the flow resistance of the air outlet, make the air flow smoother, and further improve the performance of the fan system and the air volume of the whole fan.
Example two
As shown in fig. 8, the air outlet duct profile is formed by connecting 3 curves and 9 straight-line segments.
As shown in fig. 8, the air outlet 2 is an upper air outlet, and the profile of the air outlet duct 1 further includes a front profile 13 and a top profile 12; from back to front, the top-end molded line 12 comprises a first straight line segment AB and a first arc segment BC which are connected in sequence; the front-side molded line 13 comprises a second straight-line segment CD, a third straight-line segment DE, a second arc-shaped segment EF, a fourth straight-line segment FG and a fifth straight-line segment GH which are connected in sequence, and the fourth straight-line segment FG extends along the horizontal direction; the back molded line 11 includes a third arc line segment AL, a sixth line segment LK, a seventh line segment KQ, an eighth line segment QJ, and a ninth line segment J I, which are connected in sequence, and the seventh line segment KQ is an outward convex molded line segment 111.
Therefore, the utilization rate of the air outlet is improved, and the flow resistance inside the air outlet duct is reduced. The parameters of the vertical distance between the point K and the point Q, the included angle between the point KQ and the reference straight line segment GK, the angle between the point FG and the reference straight line segment GK and the horizontal distance n need to be limited, so that the distance between the air deflector and the wall surface of the air duct in a forward tilting state and the air deflector cannot block the air port are ensured.
As shown in fig. 9, 10 and 11 after improvement, when such parameter design is adopted, the molded line of the back of the air outlet duct is a broken line, so that the distance between the wall surface of the duct and the leftmost air deflector can be increased. Meanwhile, the utilization rate of the air outlet can be improved, eddy flow in the air channel is eliminated, low-speed areas and high-pressure areas are reduced, the flow resistance of the air outlet is reduced, the air flow is smoother, and the system performance of the fan and the air volume of the whole fan are improved.
Optionally, the air deflectors 3 are rotatably arranged in the air outlet duct 1, and the air deflectors 3 are arranged at intervals along the front-back direction of the air outlet duct 1; a connecting line of a vertex K of the outer convex line segment 111 and a vertex G of the fifth straight line segment GH is a reference straight line segment GK, and the rotation centers of the air deflectors 3 are all on the reference straight line segment GK; the number of the air deflectors 3 is z, and z is more than or equal to 3 and less than or equal to 9; the horizontal distance between the vertex K of the outward convex line section 111 and the rotation center of the air deflector 3 closest to the outward convex line section is n, the horizontal distance between the vertex G of the fifth straight line section GH and the rotation center of the air deflector 3 closest to the fifth straight line section is also n, and n is more than or equal to 15mm and less than or equal to 35mm; the horizontal distance between the vertex K of the outer convex line segment 111 and the vertex G of the fifth straight line segment GH is p, and p is more than or equal to 180mm and less than or equal to 250mm; the horizontal distance between two adjacent air deflectors 3 is m, and the value range of m is as follows: m = (p-2 × n)/(z-1); the included angle between the first straight line segment AB and the horizontal line is gamma, and the gamma is more than or equal to 5 degrees and less than or equal to 10 degrees; an included angle between the reference straight line segment GK and the fourth straight line segment FG is beta, and beta is more than or equal to 160 degrees and less than or equal to 180 degrees; the vertical distance of the seventh straight-line segment KQ is s, s is more than or equal to 55mm and less than or equal to 70mm, the included angle between the seventh straight-line segment KQ and the reference straight-line segment GK is alpha, and alpha is more than or equal to 95 degrees and less than or equal to 115 degrees. When the parameters are set within the above numerical ranges, the effect is better.
Preferably, z =5, n =20mm, p =198mm, s =66mm, α =102 °, β =175 °, γ =8 °. When the parameters are set within the above numerical range, the effect is better.
Optionally, the present application further provides an air conditioner, including the above air duct structure.
Optionally, the air duct structure provided by the application is applied to an up-and-down distributed air supply cabinet air conditioner, and the cabinet air conditioner can realize bath type refrigeration and carpet type heating, so that the purposes that air does not blow people and cold and warm air are distributed are achieved. Due to the size limitation of the air outlet of the up-and-down distributed air supply cabinet air conditioner, the utilization rate of the area of the air outlet is very important. When the air outlet air deflector rotates to a forward-inclined state, the air deflector close to the wall surface side of the air duct can block part of the air outlet, the air duct profile of the air outlet duct in the related art is unreasonable, as shown in fig. 1, 4 to 6 and 9 to 11 before improvement, the area of the air outlet cannot be fully utilized, and the utilization rate of the air outlet is low. As shown before the improvement of fig. 4 and 9, in this state, there is a vortex at the position of the inner ring of the air outlet duct, which results in energy loss. As shown before the improvement of fig. 5 and 10, in this state, a large-area low-speed region exists inside the air outlet duct due to the flow resistance. As shown in fig. 6 and 11 before improvement, in this state, because the airflow is not smooth, a large-area high-pressure area exists inside the air outlet duct. In the related art, a plurality of EC fans are combined to replace air deflectors to be distributed at the air outlet, so that the utilization rate of the air outlet is increased. However, this method greatly increases the production cost due to too many fans, and the system operation stability is low.
This application is through parameterization design air-out wind channel molded lines, with air-out wind channel back molded lines optimal design for curvilinear figure or broken line shape, increases the interval of wind channel wall and leftmost aviation baffle, improves the air outlet utilization ratio, eliminates the inside vortex in wind channel, reduces low-speed region and high pressure region, reduces air outlet flow resistance, lets the air current more smooth and easy, and then improves fan system performance and complete machine amount of wind.
Optionally, the air duct structure of the air conditioner includes: air outlet 2, air outlet duct 1, main air duct 6, spiral case 4 and fan 5. The fan 5 is located in the centre of the volute 4. The main air duct 6 is connected with the volute 4 and the air outlet duct 1. The air outlet duct 1 internally comprises an air deflector 3. The air outlet duct 1 is connected with the air outlet 2 and the main air duct 6. External air flow is sucked into the volute 4 by the fan 5, the volute 4 guides the air flow to the main air duct 6, then the air flow enters the air outlet air duct 1, passes through the air deflector 3 and finally flows out of the air outlet 2.
Optionally, the fan 5 is a single centrifugal double suction fan.
The invention solves the following problems: the problem of air-out air conditioner air outlet utilization efficiency low and air outlet flow resistance too big about solving.
Exemplary embodiments of the present disclosure are specifically illustrated and described above. It is to be understood that the present disclosure is not limited to the precise construction, arrangements, or implementations described herein; on the contrary, the disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
For ease of description, spatially relative terms such as "over ...,"' over ...upper surface "," above ", etc. may be used herein to describe the spatial relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at ...above" may include both orientations "at ...above 8230; 'at 8230;' below 8230;" above ". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in other sequences than those illustrated or described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (17)
1. An air duct structure, comprising:
the air outlet structure comprises an air outlet duct (1) and an air outlet (2) communicated with the air outlet duct (1), wherein the air outlet duct (1) extends along the height direction of the air duct structure, and the air outlet (2) is positioned on the front surface of the air outlet duct (1);
the air deflector (3) is arranged in the air outlet duct (1) and used for guiding the air flow in the air outlet duct (1) to the air outlet (2);
the molded lines of the air outlet duct (1) comprise back molded lines (11), and the back molded lines (11) comprise outward convex line sections (111) which are arranged corresponding to the air guide plates (3) and are used for ensuring the air outlet distance between the back wall surfaces of the air outlet duct (1) and the air guide plates (3).
2. The air duct structure according to claim 1,
the outer convex line segment (111) comprises one or more of a curve segment and a broken line segment.
3. The air duct structure according to claim 1,
the convex line section (111) is a curve section, the curve section comprises a first arc line section, the distance between the first arc line section and a vertical surface where the vertex of the first arc line section is located is gradually increased, and the first arc line section and the air guide plate (3) are correspondingly arranged.
4. The air duct structure according to claim 1,
the outer convex line section (111) is a broken line section, the broken line section comprises a first inclined straight line section which inclines outwards, and the first inclined straight line section and the air guide plate (3) are arranged correspondingly.
5. The air duct structure according to claim 1,
the air guide plate (3) is rotatably arranged in the air outlet duct (1), and the outward convex line segment (111) is correspondingly arranged below the rotating center of the air guide plate (3) so as to ensure the air outlet distance between the back wall surface of the air outlet duct (1) and the air guide plate (3) when the air guide plate (3) rotates to a forward tilting state.
6. The air duct structure according to claim 5,
the air guide plates (3) are arranged at intervals along the front-back direction of the air outlet duct (1), and the rotation centers of the air guide plates (3) are on the same reference straight line.
7. The air duct structure according to claim 6,
the intersection point of the reference straight line and the back molded line (11) is the vertex of the outer convex line segment (111);
the convex line segment (111) is an arc line segment, the included angle between the tangent line where the vertex of the arc line segment is located and the reference straight line is alpha, and the numeric area of the alpha is as follows: alpha is more than or equal to 60 degrees and less than or equal to 85 degrees; or the outward convex line segment (111) is a first inclined straight line segment inclined outwards, the included angle between the first inclined straight line segment and the reference straight line is alpha, and the value range of the alpha is as follows: alpha is more than or equal to 95 degrees and less than or equal to 115 degrees.
8. The air duct structure according to claim 6,
the reference line is arranged obliquely with respect to the horizontal.
9. The air duct structure according to claim 6,
the molded line of the air outlet duct (1) also comprises a front molded line (13); an included angle between a horizontal line where the intersection point of the reference straight line and the front molded line (13) is located and the reference straight line is beta, and the value range of the beta is as follows: beta is more than or equal to 160 degrees and less than or equal to 180 degrees.
10. The air duct structure according to claim 6,
the molded lines of the air outlet duct (1) also comprise a front molded line (13);
the distance between the intersection point of the reference straight line and the back molded line (11) and the rotation center of the air deflector (3) closest to the intersection point is n;
the distance between the intersection point of the reference straight line and the front molded line (13) and the rotation center of the air deflector (3) closest to the intersection point is also n;
the horizontal distance between the intersection point of the reference straight line and the back profile line (11) and the intersection point of the reference straight line and the front profile line (13) is p;
the number of the air deflectors (3) is z;
the distance between two adjacent air deflectors (3) is m, and the value range of m is as follows: m = (p-2 x n)/(z-1).
11. The air duct structure according to claim 10,
n is more than or equal to 15mm and less than or equal to 35mm; and/or
Z is more than or equal to 3 and less than or equal to 9; and/or
180mm≤p≤250mm。
12. The air duct structure according to claim 1,
the air outlet (2) is an upper air outlet, and the molded line of the air outlet duct (1) also comprises a top molded line (12);
the top end molded line (12) comprises a second inclined straight line section which is inclined downwards towards one side of the air outlet (2).
13. The air duct structure according to claim 12,
the included angle between the second oblique straight line segment and the horizontal line is gamma, and the value range of gamma is as follows: gamma is more than or equal to 5 degrees and less than or equal to 10 degrees.
14. The air duct structure according to claim 1,
the air outlet (2) is an upper air outlet, and the molded line of the air outlet duct (1) further comprises a front molded line (13) and a top molded line (12);
from back to front, the top end molded line (12) comprises a first straight line segment AB and a first arc line segment BC which are connected in sequence;
the front molded line (13) comprises a second straight line segment CD, a third straight line segment DE, a second arc line segment EF, a fourth straight line segment FG and a fifth straight line segment GH which are sequentially connected, and the fourth straight line segment FG extends along the horizontal direction;
the back molded line (11) comprises a third arc line segment AL, a sixth line segment LK, a fourth arc line segment KJ and a seventh line segment J I which are sequentially connected, and the fourth arc line segment KJ is the outer convex line segment (111); or the back molded line (11) comprises a third arc line segment AL, a sixth line segment LK, a seventh line segment KQ, an eighth line segment QJ and a ninth line segment J I which are sequentially connected, and the seventh line segment KQ is the external convex line segment (111).
15. The air duct structure according to claim 14,
the air deflectors (3) are rotatably arranged in the air outlet duct (1), and the air deflectors (3) are arranged at intervals along the front-back direction of the air outlet duct (1); a connecting line of a vertex K of the outer convex line segment (111) and a vertex G of the fifth straight line segment GH is a reference straight line segment GK, and the rotation centers of the air deflectors (3) are all on the reference straight line segment GK;
the number of the air deflectors (3) is z, and z is more than or equal to 3 and less than or equal to 9;
the horizontal distance between the vertex K of the outward convex line segment (111) and the rotation center of the air deflector (3) closest to the outward convex line segment is n, the horizontal distance between the vertex G of the fifth straight line segment GH and the rotation center of the air deflector (3) closest to the fifth straight line segment is also n, and n is more than or equal to 15mm and less than or equal to 35mm;
the horizontal distance between the vertex K of the outward convex line segment (111) and the vertex G of the fifth straight-line segment GH is p, and p is more than or equal to 180mm and less than or equal to 250mm;
the horizontal distance between two adjacent air deflectors (3) is m, and the value range of m is as follows: m = (p-2 × n)/(z-1);
the included angle between the first straight line segment AB and the horizontal line is gamma, and the gamma is more than or equal to 5 degrees and less than or equal to 10 degrees;
an included angle between the reference straight line segment GK and the fourth straight line segment FG is beta, and beta is more than or equal to 160 degrees and less than or equal to 180 degrees;
the value range of the curvature radius of each point on the fourth arc line segment KJ is more than or equal to 150mm and less than or equal to 450mm, the included angle between the tangent of the fourth arc line segment at the vertex K and the reference straight line segment GK is alpha, and alpha is more than or equal to 60 degrees and less than or equal to 85 degrees; or the vertical distance of the seventh straight-line segment KQ is s, s is more than or equal to 55mm and less than or equal to 70mm, the included angle between the seventh straight-line segment KQ and the reference straight-line segment GK is alpha, and alpha is more than or equal to 95 degrees and less than or equal to 115 degrees.
16. The air duct structure according to claim 1, characterized in that the air duct structure further comprises:
a volute (4);
a fan (5), the fan (5) being located in the centre of the volute;
a main air duct (6), wherein the main air duct (6) is communicated with the volute (4);
the air outlet duct (1), the air outlet duct (1) is communicated with the main air duct (6);
external air flow is sucked into the volute by the fan, guided to the main air duct (6) by the volute, then enters the air outlet air duct (1), passes through the air deflector (3) and flows out of the air outlet (2).
17. An air conditioner characterized by comprising the air duct structure of any one of claims 1 to 16.
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| CN202211652739.1A CN115978769B (en) | 2022-12-21 | 2022-12-21 | Air duct structure and air conditioner with same |
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| CN202211652739.1A CN115978769B (en) | 2022-12-21 | 2022-12-21 | Air duct structure and air conditioner with same |
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