CN211055256U - Boundary layer baffle, automobile body and car - Google Patents
Boundary layer baffle, automobile body and car Download PDFInfo
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- CN211055256U CN211055256U CN201921469673.6U CN201921469673U CN211055256U CN 211055256 U CN211055256 U CN 211055256U CN 201921469673 U CN201921469673 U CN 201921469673U CN 211055256 U CN211055256 U CN 211055256U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/82—Elements for improving aerodynamics
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Abstract
The utility model relates to the technical field of auto-parts, in particular to boundary layer baffle, automobile body and car, including constriction and water conservancy diversion portion, the constriction is the first curved surface of predetermineeing the within range for the camber, the curved surface of water conservancy diversion portion predetermineeing the within range for the camber at the second, the crooked direction of constriction with the crooked opposite direction of water conservancy diversion portion, the constriction with the water conservancy diversion portion is connected. After the boundary layer partition plate is adopted, the air above the boundary layer partition plate has higher speed, and can flow in a better fit manner, so that the air flow separation does not occur on the contraction curved surface at the tail part of the vehicle body under the condition of larger curvature; meanwhile, the tail of the automobile adopts a contraction curved surface with larger contraction curvature under the condition of space limitation, and the sectional area of the tail of the automobile is reduced, so that the area of a tail vortex is reduced, and the wind resistance is reduced.
Description
Technical Field
The utility model relates to the technical field of auto-parts, in particular to boundary layer baffle, automobile body and car.
Background
The boundary layer is a thin layer which is close to the object surface. In the counter pressure gradient section, the air flow velocity of the bottom layer of the boundary layer is gradually reduced to zero under the action of counter pressure, and flows back from back to front. The air flowing backwards upwards meets the air flowing downwards, so that the air on the boundary layer is accumulated and arched to be separated from the object plane, and is rolled by the main flow to generate a large amount of vortexes. Thus, the boundary layer flow cannot flow against the airfoil, and boundary layer separation occurs. Boundary layer separation, if it occurs on the wing, has a serious consequence of stalling. When the automobile runs at high speed, the boundary layer separation phenomenon can be generated, and when the boundary layer separation is generated, the wind resistance can be greatly increased.
The tail contraction of the automobile can reduce the tail vortex and reduce the wind resistance. However, automobiles are limited by space requirements and tend to require a larger curvature of the converging curved surface in order to allow the tail to converge to a smaller size. However, the air boundary layer at the tail of the automobile is often thick, and air separation is easy to occur when the curvature of the contraction curved surface is too large, so that the reduction of wind resistance is influenced. At present, the air flow separation at the restraining tail part of the automobile mainly adopts a turbulent flow means, and turbulent flow bulges or a turbulent flow plate are used for increasing the turbulence degree. The spoiler can reduce the lift force at the tail of the vehicle and improve the high-speed stability of the vehicle. However, the wind resistance is increased while the spoiler is installed.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is that when the curvature of the curved surface of the tail part of the automobile body is bigger, the boundary layer of the tail part of the automobile body can produce the problem of separation.
In order to solve the above technical problem, in a first aspect, an embodiment of the present application discloses a boundary layer separator, including: the flow guide device comprises a contraction part and a flow guide part, wherein the contraction part is a curved surface with curvature in a first preset range, the flow guide part is a curved surface with curvature in a second preset range, the bending direction of the contraction part is opposite to that of the flow guide part, and the contraction part is connected with the flow guide part.
Further, the first preset range is 10mm-500 mm; the second preset range is 10mm-500 mm.
Further, the contraction part is tangent to the flow guide part; or the like, or, alternatively,
the boundary layer clapboard further comprises a plane connecting part, the plane connecting part is tangent to the contraction part, and the flow guide part is tangent to the plane connecting part.
Further, the thickness value of the end region of the boundary layer separator is within a third preset range.
In a second aspect, the embodiment of the application discloses a vehicle body, wherein the vehicle body is provided with a contraction curved surface, the circle center of the curvature radius of the contraction curved surface is positioned on the inner side of the vehicle body, a flow guide curved surface is arranged behind the contraction curved surface, and the circle center of the curvature radius of the flow guide curved surface is positioned on the outer side of the vehicle body;
boundary layer clapboards are arranged on the outer sides of the contraction curved surface and the flow guide curved surface, the boundary layer clapboards are the boundary layer clapboards, the front end of the contraction part is arranged behind the front end of the contraction curved surface, and the tail end of the flow guide part is arranged in front of the tail end of the flow guide curved surface;
a flow guide channel is formed between the boundary layer partition board and the vehicle body, the front end edge of the contraction part and the vehicle body form an inlet of the flow guide channel, and the tail end edge of the flow guide part and the vehicle body form an outlet of the flow guide channel.
Further, the height of the flow guide channel increases continuously from the inlet to the outlet.
Further, the height of the inlet is 5mm-50 mm; the height of the outlet is 6.5mm-150 mm.
Further, the contraction curved surface is tangent to the flow guiding curved surface; or the like, or, alternatively,
the car body further comprises a connecting plane, the connecting plane is tangent to the contraction curved surface, and the flow guide curved surface is tangent to the connecting plane.
Further, the distance between the tail end of the boundary layer partition board and the tail end of the flow guide curved surface is 10mm-100 mm.
In a third aspect, the embodiment of the application discloses an automobile, which is characterized by comprising the automobile body.
By adopting the technical scheme, the boundary layer partition plate, the automobile body and the automobile have the following beneficial effects:
according to the boundary layer clapboard, after the boundary layer clapboard is adopted, the air above the boundary layer clapboard has higher speed, and can flow in a better fit manner, so that the air flow separation does not occur on the contraction curved surface at the tail part of the vehicle body under the condition of larger curvature; meanwhile, the tail of the automobile adopts a contraction curved surface with larger contraction curvature under the condition of space limitation, and the sectional area of the tail of the automobile is reduced, so that the area of a tail vortex is reduced, and the wind resistance is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic cross-sectional view of a boundary layer separator according to an embodiment of the present application;
FIG. 2 is a schematic view of a boundary layer spacer mounting structure according to an embodiment of the present application;
FIG. 3 is a schematic view of a boundary layer spacer mounting structure according to an embodiment of the present application;
the following is a supplementary description of the drawings:
10-boundary layer separator; 11-a constriction; 12-a flow guide part; 20-a vehicle body; 21-a shrinking curved surface; 22-a flow guiding curved surface; 23-flange.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all 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 application.
Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the present application. In the description of the present application, it is to be understood that the terms "upper", "lower", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," and the like 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 application described herein are capable of operation in sequences other than those illustrated or described herein.
To achieve a smaller vehicle tail area, a relatively large curvature is required for the vehicle tail's converging curve. When the curvature is large, the boundary layer is easy to separate, and the wind resistance is increased.
As shown in fig. 1, the present embodiment provides a boundary layer separator 10, including: the flow guide device comprises a contraction part 11 and a flow guide part 12, wherein the contraction part 11 is a curved surface with the curvature within a first preset range, the flow guide part 12 is a curved surface with the curvature within a second preset range, the bending direction of the contraction part 11 is opposite to that of the flow guide part 12, and the contraction part 11 is connected with the flow guide part 12.
In the embodiment of the application, after the boundary layer partition board 10 is adopted, the air above the boundary layer partition board 10 has higher speed, and can flow in a better fit manner, so that the air flow separation does not occur on the contraction curved surface 21 at the tail part of the vehicle body 20 under the condition of larger curvature; meanwhile, the tail part of the automobile adopts a contraction curved surface 21 with larger contraction curvature under the condition of space limitation, and the sectional area of the tail part of the automobile is reduced, so that the area of a tail vortex is reduced, and the wind resistance is reduced.
The first preset range is 10mm-500 mm; the second preset range is 10mm-500 mm.
As shown in fig. 1, in the embodiment of the present application, the contraction portion 11 is a continuous and smoothly contracted curved surface, and optionally, the curvature of the curved surface changes within a first preset range, and the junction of two adjacent curved surfaces with different curvatures is tangent. The flow guide part 12 connected with the contraction part 11 is a continuous and smooth curved surface, the connection part of the contraction part 11 and the flow guide part 12 is tangent, optionally, the curvature of the curved surface is changed within a second preset range, and the connection part of two adjacent arc surfaces with different curvatures is tangent.
In some embodiments, the boundary layer baffle 10 further comprises a planar connection tangent to the constriction 11 and the flow guide 12 tangent to the planar connection.
In other embodiments, the end of the flow guide portion 12 is further provided with a flat portion, and the flat portion is tangent to the end of the flow guide portion 12.
The thickness value of the end region of the boundary layer separator 10 is within a third predetermined range.
In the embodiment of the present application, the thickness of the boundary layer separator 10 is not more than 10mm from the end of the boundary layer separator 10 to the area 10mm away from the end. The length and thickness of the end region can be adjusted according to the practical application, and are not limited to the examples of the embodiments of the present application.
As shown in fig. 2 and fig. 3, the embodiment of the present application further provides a vehicle body 20, where the vehicle body 20 has a contracted curved surface 21, a center of a curvature radius of the contracted curved surface 21 is on an inner side of the vehicle body 20, a diversion curved surface 22 is arranged behind the contracted curved surface 21, and a center of a curvature radius of the diversion curved surface 22 is on an outer side of the vehicle body 20;
boundary layer partition plates 10 are arranged on the outer sides of the contraction curved surface 21 and the diversion curved surface 22, the boundary layer partition plates 10 are the boundary layer partition plates 10, the front end of the contraction part 11 is arranged behind the front end of the contraction curved surface 21, and the tail end of the diversion part 12 is arranged in front of the tail end of the diversion curved surface 22;
a flow guide channel is formed between the boundary layer clapboard 10 and the vehicle body 20, the front end edge of the contraction part 11 and the vehicle body 20 form an inlet of the flow guide channel, and the tail end edge of the flow guide part 12 and the vehicle body 20 form an outlet of the flow guide channel.
In the embodiment of the present application, the vehicle body 20 includes the boundary layer baffle 10, and the structure of the boundary layer baffle 10 refers to all the ways of the boundary layer baffle 10 described above. The converging curved surface 21 and the converging portion 11 of the boundary layer diaphragm 10 reduce the wake vortex area. The air flow angle can be adjusted by the curved guide surface 22 and the guide part 12 of the boundary layer clapboard 10, and the strength of the wake vortex is reduced. The contraction curved surface 21 is a continuous and smooth contraction curved surface, optionally, the curvatures of two adjacent curved surfaces are the same, and the contraction curvatures of two adjacent curved surfaces are different. The radius of curvature of the converging curved surface 21 may be between 10mm and 500 mm. The diversion curved surface 22 connected with the contraction curved surface 21 is a continuous smooth curved surface, the connection part of the contraction curved surface 21 and the diversion curved surface 22 is tangent, optionally, the curvatures of two adjacent curved surfaces are the same, and the optional contraction curvatures of two adjacent curved surfaces are different. The radius of curvature of the curved flow guide surface 22 may be between 10mm and 500 mm.
In some embodiments, the body 20 further includes a connecting plane that is tangent to the converging curved surface 21 and the deflecting curved surface 22 is tangent to the connecting plane.
In other embodiments, the end of the guiding curved surface 22 is further provided with a plane, and the plane is tangent to the end of the guiding curved surface 22.
In other embodiments, as shown in fig. 2 and 3, the boundary layer diaphragm 10 may be disposed at any portion of the vehicle body 20 having the contraction curved surface 21 and the diversion curved surface 22. The boundary layer baffle 10 can be arranged at the tail part of the vehicle roof, and also can be arranged at the rear side of the C pillar or the D pillar, or between the D pillar and the rear bumper and the lower side of the rear bumper. Optionally, the boundary layer clapboard 10 can be combined with the tail wing of the vehicle body 20, and the boundary layer clapboard 10 is arranged above the tail wing; optionally, the boundary layer partition 10 is combined with a rear tail lamp of the vehicle body 20, and the boundary layer partition 10 is arranged on the outer side of the rear tail lamp; optionally, the boundary layer baffle 10 is disposed at a post-protection position or outside the post-protection, etc. The above arrangements can be combined in various positions and in various ways.
The height of the flow guide channel increases continuously from the inlet to the outlet.
The height of the inlet is 5mm-50 mm; the height of the outlet is 6.5mm-150 mm.
In the embodiment of the application, the height of the flow guide channel can be continuously and gradually increased from the inlet to the outlet, and the contour line of the boundary layer partition plate 10 smoothly extends without bending. The height of the inlet of the drainage channel is smaller than that of the outlet of the drainage channel, so that a better drainage effect can be formed at the outlet of the drainage channel, and the capacity of sucking the adsorption surface layer at the inlet of the drainage channel is improved.
In some embodiments, the ratio of the outlet height to the inlet height is set to 1.3-10.
The distance between the tail end of the boundary layer baffle plate 10 and the tail end of the diversion curved surface 22 is 10mm-100 mm.
In the embodiment of the present application, as shown in fig. 1, the end of the boundary layer partition 10 is located forward of the end of the flow guiding curved surface 22, so as to enhance the flow guiding effect at the outlet of the flow guiding channel. In some embodiments, the end of the air guiding surface 22 includes a flange 23 protruding from the vehicle body 20, and the length of the flange 23 is included in the length of the air guiding surface 22.
An automobile comprising a body 20, the body 20 being constructed in all the ways described above with reference to the body 20.
Based on the above alternative embodiments, two alternative embodiments are described below.
Example 1:
as shown in fig. 1, the present embodiment provides a boundary layer separator 10, including: the flow guide device comprises a contraction part 11 and a flow guide part 12, wherein the contraction part 11 is a curved surface with the curvature within a first preset range, the flow guide part 12 is a curved surface with the curvature within a second preset range, the bending direction of the contraction part 11 is opposite to that of the flow guide part 12, and the contraction part 11 is connected with the flow guide part 12.
In the embodiment of the application, after the boundary layer partition board 10 is adopted, the air above the boundary layer partition board 10 has higher speed, and can flow in a better fit manner, so that the air flow separation does not occur on the contraction curved surface 21 at the tail part of the vehicle body 20 under the condition of larger curvature; meanwhile, the tail part of the automobile adopts a contraction curved surface 21 with larger contraction curvature under the condition of space limitation, and the sectional area of the tail part of the automobile is reduced, so that the area of a tail vortex is reduced, and the wind resistance is reduced.
The first preset range is 10mm-500 mm; the second preset range is 10mm-500 mm.
As shown in fig. 1, in the embodiment of the present application, the contraction portion 11 is a continuous and smoothly contracted curved surface, and optionally, the curvature of the curved surface changes within a first preset range, and the junction of two adjacent curved surfaces with different curvatures is tangent. The flow guide part 12 connected with the contraction part 11 is a continuous and smooth curved surface, the connection part of the contraction part 11 and the flow guide part 12 is tangent, optionally, the curvature of the curved surface is changed within a second preset range, and the connection part of two adjacent arc surfaces with different curvatures is tangent.
The end of the flow guide part 12 is also provided with a plane part which is tangent with the end of the flow guide part 12.
The thickness value of the end region of the boundary layer separator 10 is within a third predetermined range.
In the embodiment of the present application, a region from the end of the boundary layer separator 10 to 10mm from the end is in the end region, and the thickness value of the boundary layer separator 10 is not greater than 10 mm. The length and thickness of the end region can be adjusted according to the practical application, and are not limited to the examples of the embodiments of the present application.
As shown in fig. 2 and fig. 3, the embodiment of the present application further provides a vehicle body 20, where the vehicle body 20 has a contracted curved surface 21, a center of a curvature radius of the contracted curved surface 21 is on an inner side of the vehicle body 20, a diversion curved surface 22 is arranged behind the contracted curved surface 21, and a center of a curvature radius of the diversion curved surface 22 is on an outer side of the vehicle body 20;
boundary layer partition plates 10 are arranged on the outer sides of the contraction curved surface 21 and the diversion curved surface 22, the boundary layer partition plates 10 are the boundary layer partition plates 10, the front end of the contraction part 11 is arranged behind the front end of the contraction curved surface 21, and the tail end of the diversion part 12 is arranged in front of the tail end of the diversion curved surface 22;
a flow guide channel is formed between the boundary layer clapboard 10 and the vehicle body 20, the front end edge of the contraction part 11 and the vehicle body 20 form an inlet of the flow guide channel, and the tail end edge of the flow guide part 12 and the vehicle body 20 form an outlet of the flow guide channel.
In the embodiment of the present application, the vehicle body 20 includes the boundary layer baffle 10, and the structure of the boundary layer baffle 10 refers to all the ways of the boundary layer baffle 10 described above. The converging curved surface 21 and the converging portion 11 of the boundary layer diaphragm 10 reduce the wake vortex area. The air flow angle can be adjusted by the curved guide surface 22 and the guide part 12 of the boundary layer clapboard 10, and the strength of the wake vortex is reduced. The contraction curved surface 21 is a continuous and smooth contraction curved surface, optionally, the curvatures of two adjacent curved surfaces are the same, and the contraction curvatures of two adjacent curved surfaces are different. The radius of curvature of the converging curved surface 21 may be between 10mm and 500 mm. The diversion curved surface 22 connected with the contraction curved surface 21 is a continuous smooth curved surface, the connection part of the contraction curved surface 21 and the diversion curved surface 22 is tangent, optionally, the curvatures of two adjacent curved surfaces are the same, and the optional contraction curvatures of two adjacent curved surfaces are different. The radius of curvature of the curved flow guide surface 22 may be between 10mm and 500 mm.
The tail end of the diversion curved surface 22 is also provided with a section of plane, and the plane is tangent to the tail end of the diversion curved surface 22.
In other embodiments, as shown in fig. 2 and 3, the boundary layer diaphragm 10 may be disposed at any portion of the vehicle body 20 having the contraction curved surface 21 and the diversion curved surface 22. The boundary layer bulkhead 10 may be provided at the rear of the vehicle roof, and alternatively, the boundary layer bulkhead 10 may be combined with the rear wing of the vehicle body 20.
The height of the flow guide channel increases continuously from the inlet to the outlet.
The height of the inlet is 5mm-50 mm; the height of the outlet is 6.5mm-150 mm.
In the embodiment of the application, the height of the flow guide channel can be continuously and gradually increased from the inlet to the outlet, and the contour line of the boundary layer partition plate 10 smoothly extends without bending. The height of the inlet of the drainage channel is smaller than that of the outlet of the drainage channel, so that a better drainage effect can be formed at the outlet of the drainage channel, and the capacity of sucking the adsorption surface layer at the inlet of the drainage channel is improved.
In some embodiments, the ratio of the outlet height to the inlet height is set to 1.3-10.
The distance between the tail end of the boundary layer baffle plate 10 and the tail end of the diversion curved surface 22 is 10mm-100 mm.
In the embodiment of the present application, as shown in fig. 1, the end of the boundary layer partition 10 is located forward of the end of the flow guiding curved surface 22, so as to enhance the flow guiding effect at the outlet of the flow guiding channel.
An automobile comprising a body 20, the body 20 being constructed in all the ways described above with reference to the body 20.
Example 2:
as shown in fig. 1, the present embodiment provides a boundary layer separator 10, including: the flow guide device comprises a contraction part 11 and a flow guide part 12, wherein the contraction part 11 is a curved surface with the curvature within a first preset range, the flow guide part 12 is a curved surface with the curvature within a second preset range, the bending direction of the contraction part 11 is opposite to that of the flow guide part 12, and the contraction part 11 is connected with the flow guide part 12.
In the embodiment of the application, after the boundary layer partition board 10 is adopted, the air above the boundary layer partition board 10 has higher speed, and can flow in a better fit manner, so that the air flow separation does not occur on the contraction curved surface 21 at the tail part of the vehicle body 20 under the condition of larger curvature; meanwhile, the tail part of the automobile adopts a contraction curved surface 21 with larger contraction curvature under the condition of space limitation, and the sectional area of the tail part of the automobile is reduced, so that the area of a tail vortex is reduced, and the wind resistance is reduced.
The first preset range is 10mm-500 mm; the second preset range is 10mm-500 mm.
As shown in fig. 1, in the embodiment of the present application, the contraction portion 11 is a continuous and smoothly contracted curved surface, and optionally, the curvature of the curved surface changes within a first preset range, and the junction of two adjacent curved surfaces with different curvatures is tangent. The flow guide part 12 connected with the contraction part 11 is a continuous and smooth curved surface, the connection part of the contraction part 11 and the flow guide part 12 is tangent, optionally, the curvature of the curved surface is changed within a second preset range, and the connection part of two adjacent arc surfaces with different curvatures is tangent.
In some embodiments, the boundary layer baffle 10 further comprises a planar connection tangent to the constriction 11 and the flow guide 12 tangent to the planar connection.
The thickness value of the end region of the boundary layer separator 10 is within a third predetermined range.
In the embodiment of the present application, the thickness of the boundary layer separator 10 is not more than 10mm from the end of the boundary layer separator 10 to the area 10mm away from the end. The length and thickness of the end region can be adjusted according to the practical application, and are not limited to the examples of the embodiments of the present application.
As shown in fig. 2 and fig. 3, the embodiment of the present application further provides a vehicle body 20, where the vehicle body 20 has a contracted curved surface 21, a center of a curvature radius of the contracted curved surface 21 is on an inner side of the vehicle body 20, a diversion curved surface 22 is arranged behind the contracted curved surface 21, and a center of a curvature radius of the diversion curved surface 22 is on an outer side of the vehicle body 20;
boundary layer partition plates 10 are arranged on the outer sides of the contraction curved surface 21 and the diversion curved surface 22, the boundary layer partition plates 10 are the boundary layer partition plates 10, the front end of the contraction part 11 is arranged behind the front end of the contraction curved surface 21, and the tail end of the diversion part 12 is arranged in front of the tail end of the diversion curved surface 22;
a flow guide channel is formed between the boundary layer clapboard 10 and the vehicle body 20, the front end edge of the contraction part 11 and the vehicle body 20 form an inlet of the flow guide channel, and the tail end edge of the flow guide part 12 and the vehicle body 20 form an outlet of the flow guide channel.
In the embodiment of the present application, the vehicle body 20 includes the boundary layer baffle 10, and the structure of the boundary layer baffle 10 refers to all the ways of the boundary layer baffle 10 described above. The converging curved surface 21 and the converging portion 11 of the boundary layer diaphragm 10 reduce the wake vortex area. The air flow angle can be adjusted by the curved guide surface 22 and the guide part 12 of the boundary layer clapboard 10, and the strength of the wake vortex is reduced. The contraction curved surface 21 is a continuous and smooth contraction curved surface, optionally, the curvatures of two adjacent curved surfaces are the same, and the contraction curvatures of two adjacent curved surfaces are different. The radius of curvature of the converging curved surface 21 may be between 10mm and 500 mm. The diversion curved surface 22 connected with the contraction curved surface 21 is a continuous smooth curved surface, the connection part of the contraction curved surface 21 and the diversion curved surface 22 is tangent, optionally, the curvatures of two adjacent curved surfaces are the same, and the optional contraction curvatures of two adjacent curved surfaces are different. The radius of curvature of the curved flow guide surface 22 may be between 10mm and 500 mm.
In some embodiments, the body 20 further includes a connecting plane that is tangent to the converging curved surface 21 and the deflecting curved surface 22 is tangent to the connecting plane.
In other embodiments, as shown in fig. 2 and 3, the boundary layer diaphragm 10 may be disposed at any portion of the vehicle body 20 having the contraction curved surface 21 and the diversion curved surface 22. Alternatively, the boundary layer partition 10 is combined with a rear tail lamp of the vehicle body 20, and the boundary layer partition 10 is disposed outside the rear tail lamp.
The height of the flow guide channel increases continuously from the inlet to the outlet.
The height of the inlet is 5mm-50 mm; the height of the outlet is 6.5mm-150 mm.
In the embodiment of the application, the height of the flow guide channel can be continuously and gradually increased from the inlet to the outlet, and the contour line of the boundary layer partition plate 10 smoothly extends without bending. The height of the inlet of the drainage channel is smaller than that of the outlet of the drainage channel, so that a better drainage effect can be formed at the outlet of the drainage channel, and the capacity of sucking the adsorption surface layer at the inlet of the drainage channel is improved.
In some embodiments, the ratio of the outlet height to the inlet height is set to 1.3-10.
The distance between the tail end of the boundary layer baffle plate 10 and the tail end of the diversion curved surface 22 is 10mm-100 mm.
In the embodiment of the present application, as shown in fig. 1, the end of the boundary layer partition 10 is located forward of the end of the flow guiding curved surface 22, so as to enhance the flow guiding effect at the outlet of the flow guiding channel. In some embodiments, the end of the air guiding surface 22 includes a flange 23 protruding from the vehicle body 20, and the length of the flange 23 is included in the length of the air guiding surface 22.
An automobile comprising a body 20, the body 20 being constructed in all the ways described above with reference to the body 20.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A facing layer separator, comprising: constriction portion (11) and water conservancy diversion portion (12), constriction portion (11) are the curved surface of camber at first predetermined within range, water conservancy diversion portion (12) are the curved surface of camber at the second predetermined within range, the crooked direction of constriction portion (11) with the crooked direction of water conservancy diversion portion (12) is opposite, constriction portion (11) with water conservancy diversion portion (12) are connected.
2. The boundary layer separator of claim 1, wherein: the first preset range is 10mm-500 mm; the second preset range is 10mm-500 mm.
3. The boundary layer separator of claim 2, wherein: the contraction part (11) is tangent to the flow guide part (12); or the like, or, alternatively,
the boundary layer clapboard (10) also comprises a plane connecting part, the plane connecting part is tangent to the contraction part (11), and the flow guide part (12) is tangent to the plane connecting part.
4. The boundary layer separator of claim 3, wherein: the thickness value of the end region of the boundary layer baffle (10) is within a third preset range.
5. The vehicle body is characterized in that the vehicle body (20) is provided with a contracted curved surface (21), the center of a curvature radius of the contracted curved surface (21) is positioned on the inner side of the vehicle body (20), a diversion curved surface (22) is arranged behind the contracted curved surface (21), and the center of a curvature radius of the diversion curved surface (22) is positioned on the outer side of the vehicle body (20);
boundary layer partition plates (10) are arranged on the outer sides of the contraction curved surface (21) and the flow guide curved surface (22), the boundary layer partition plates (10) are the boundary layer partition plates according to any one of claims 1 to 4, the front end of the contraction part (11) is arranged behind the front end of the contraction curved surface (21), and the tail end of the flow guide part (12) is arranged in front of the tail end of the flow guide curved surface (22);
a flow guide channel is formed between the boundary layer partition plate (10) and the vehicle body (20), the front end edge of the contraction part (11) and the vehicle body (20) form an inlet of the flow guide channel, and the tail end edge of the flow guide part (12) and the vehicle body (20) form an outlet of the flow guide channel.
6. The vehicle body of claim 5, wherein: the height of the flow guide channel continuously increases from the inlet to the outlet.
7. The vehicle body of claim 6, wherein: the height of the inlet is 5mm-50 mm; the height of the outlet is 6.5mm-150 mm.
8. The vehicle body of claim 5, wherein: the contraction curved surface (21) is tangent to the flow guide curved surface (22); or the like, or, alternatively,
the car body (20) further comprises a connecting plane, the connecting plane is tangent to the contraction curved surface (21), and the flow guide curved surface (22) is tangent to the connecting plane.
9. The vehicle body of claim 8, wherein: the distance between the tail end of the boundary layer clapboard (10) and the tail end of the diversion curved surface (22) is 10mm-100 mm.
10. A motor vehicle, characterized by comprising a body (20) according to any one of claims 5-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921469673.6U CN211055256U (en) | 2019-09-05 | 2019-09-05 | Boundary layer baffle, automobile body and car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921469673.6U CN211055256U (en) | 2019-09-05 | 2019-09-05 | Boundary layer baffle, automobile body and car |
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| CN211055256U true CN211055256U (en) | 2020-07-21 |
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| CN201921469673.6U Active CN211055256U (en) | 2019-09-05 | 2019-09-05 | Boundary layer baffle, automobile body and car |
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| CN (1) | CN211055256U (en) |
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Effective date of registration: 20230807 Address after: 310051 No. 1760, Jiangling Road, Hangzhou, Zhejiang, Binjiang District Patentee after: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. Patentee after: Chongqing Ruilan Automobile Research Institute Co.,Ltd. Address before: No.3366 Weiwu Road, dajiangdong Industrial Cluster District, Hangzhou, Zhejiang Province Patentee before: ZHEJIANG JIZHI NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd. Patentee before: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. |
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