CN210821728U - Passenger train air conditioner drag reduction structure - Google Patents
Passenger train air conditioner drag reduction structure Download PDFInfo
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- CN210821728U CN210821728U CN201921343048.7U CN201921343048U CN210821728U CN 210821728 U CN210821728 U CN 210821728U CN 201921343048 U CN201921343048 U CN 201921343048U CN 210821728 U CN210821728 U CN 210821728U
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- air conditioner
- drag reduction
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- passenger car
- arc transition
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Abstract
The utility model discloses a passenger train air conditioner drag reduction structure, including the air conditioner casing, its characterized in that: and a spherical convex structure is arranged on the arc transition surface at the tail part of the air conditioner shell. The spherical bulge structure is arranged on the arc transition surface at the tail part of the air conditioner shell of the passenger car, so that the air of the boundary layer is swept over from the spherical bulge, the air speed at the boundary layer is slowed, and the delay of boundary layer separation is facilitated; secondary vortex is generated when the airflow flows through the non-smooth surface, so that the aerodynamic resistance is reduced; the non-smooth surface causes a mixing effect of the wake flow, reducing energy losses.
Description
Technical Field
The utility model belongs to passenger train air conditioner field, concretely relates to passenger train air conditioner drag reduction structure.
Background
Along with the continuous improvement of people's environment, health consciousness and the continuous improvement of the call of energy saving and emission reduction, the energy consumption of passenger cars is more and more paid attention to by people, and higher energy consumption not only produces pollution to the surrounding environment, but also is the waste of energy simultaneously. In the market of passenger cars with intense competition, improving the utilization rate of energy of the passenger cars becomes a new competitive focus and a new technical development direction. Most of existing passenger car air conditioners are arranged in an overhead mode, when a vehicle runs at a high speed, the air conditioners are subjected to large flow resistance, energy consumption of the passenger car is achieved, and streamline research on the passenger car air conditioners is not mature at the present stage.
The appearance of the existing passenger car air conditioner has the following defects: the appearance structure of the existing passenger car air conditioner mainly considers the design of an internal assembly space and less considers the influence of the fluidity on the air conditioner; the structure of the existing passenger car air conditioner lacks of a streamline design, and the resistance per se is large; changing the outer contour of the passenger car air conditioner from the streamline has a great influence on internal parts.
SUMMERY OF THE UTILITY MODEL
To the defect that above-mentioned current passenger train air conditioner appearance exists, the utility model aims at providing a passenger train air conditioner drag reduction structure reduces the resistance of passenger train air conditioner, reduces the energy loss of passenger train.
The purpose of the utility model is realized through the following technical scheme.
The utility model provides a passenger train air conditioner drag reduction structure, includes air conditioner casing the spherical protruding structure has been arranged on air conditioner casing's afterbody circular arc transition face.
The diameter of the spherical bulge structure is 0.01-0.02 time of the width of the air conditioner of the passenger car.
The height of the spherical convex structure is 0.5-0.8 times of the diameter of the spherical convex structure.
The distance between the spherical convex structures is 1.5-2 times of the diameter of the spherical convex structures.
The arc transition surface at the tail part of the air conditioner shell can be further arranged to be of a rhombic convex structure, a spherical concave structure or a rhombic concave structure.
Compared with the prior art, the beneficial effects of the utility model are that: the spherical bulge structure is arranged on the arc transition surface at the tail part of the air conditioner shell of the passenger car, so that the air of the boundary layer is swept over from the spherical bulge, the air speed at the boundary layer is slowed, and the delay of boundary layer separation is facilitated; secondary vortex is generated when the airflow flows through the non-smooth surface, so that the aerodynamic resistance is reduced; the non-smooth surface causes a mixing effect of the wake flow, reducing energy losses. Compared with the prior art, the effect of drag reduction is realized under the condition of not changing greatly, the reduction of the whole flow resistance of the passenger car can be realized, and the effect of energy conservation is achieved.
Drawings
Fig. 1 is a structure of a conventional air conditioner case.
Fig. 2 shows the structure of the air conditioner casing of the present invention.
In the figure, 1 is an air conditioner condensation cover, 2 is an air conditioner evaporation cover, 3 is a circular arc transition surface, and 4 is a spherical convex structure
Detailed Description
As shown in figures 1-2, the resistance reducing structure of the passenger car air conditioner is used for the passenger car air conditioner structure and reduces resistance of the passenger car air conditioner. By adding the spherical convex structure on the arc transition surface at the tail part of the passenger car air conditioner, the wake flow generates a mixing effect through a non-smooth surface, and the energy loss is reduced; the resistance of the air conditioner of the passenger car can be reduced on the basis of not greatly changing the external contour.
This drag reduction structure includes air conditioner casing, and air conditioner casing includes air conditioner condensation lid 1, air conditioner evaporation lid 2 and circular arc transition face 3, and air conditioner condensation lid 1 sets up the front end at passenger train air conditioner, and circular arc transition face 3 sets up the afterbody at passenger train air conditioner, and air conditioner evaporation lid 2 sets up between air conditioner condensation lid 1 and circular arc transition face 3. Spherical protruding structures 4 are arranged on the tail arc transition surface 3 of the air conditioner shell, and the spherical protruding structures 4 can be uniformly arranged on the tail arc transition surface 3 and also can be non-uniformly arranged on the tail arc transition surface 3.
The diameter of the spherical convex structures 4 is 0.01-0.02 times of the width of the air conditioner of the passenger car, the height of the spherical convex structures 4 is 0.5-0.8 times of the diameter of the spherical convex structures, and the distance between the spherical convex structures 4 is 1.5-2 times of the diameter of the spherical convex structures.
Furthermore, a diamond-shaped convex structure, a spherical concave structure or a diamond-shaped concave structure can be arranged on the arc transition surface 3 at the tail part of the air conditioner shell.
The utility model discloses a theory of operation does: the drag reduction structure of the present application is configured according to the above structure, wherein the diameter of the spherical convex structures 4 is 0.01 times of the width of the air conditioner of the passenger car, the height of the spherical convex structures 4 is 0.5 times of the diameter of the spherical convex structures, and the distance between the spherical convex structures 4 is 1.5 times of the diameter of the spherical convex structures.
When the passenger car runs, the air of the boundary layer skims over the spherical bulge structure 4, so that the air speed at the boundary layer is slowed, and the delay of boundary layer separation is facilitated; secondary vortex is generated when the airflow flows through the non-smooth surface, so that the aerodynamic resistance can be reduced; the non-smooth surface causes a mixing effect in the wake, which can reduce energy losses.
The above description is only a preferred embodiment of the present invention, and is not a limitation to the technical solution of the present invention, it should be noted that, further improvements and changes can be made by those skilled in the art on the premise of the technical solution of the present invention, and all such improvements and changes should be covered in the protection scope of the present invention.
Claims (5)
1. The utility model provides a passenger train air conditioner drag reduction structure, includes air conditioner casing, its characterized in that: and a spherical convex structure is arranged on the arc transition surface at the tail part of the air conditioner shell.
2. The passenger car air conditioning drag reduction structure of claim 1, wherein: the diameter of the spherical bulge structure is 0.01-0.02 time of the width of the air conditioner of the passenger car.
3. The passenger car air conditioning drag reduction structure of claim 2, wherein: the height of the spherical convex structure is 0.5-0.8 times of the diameter of the spherical convex structure.
4. The passenger car air conditioning drag reduction structure of claim 3, wherein: the distance between the spherical convex structures is 1.5-2 times of the diameter of the spherical convex structures.
5. The passenger car air conditioning drag reduction structure of claim 1, wherein: and a rhombic convex structure, a spherical concave structure or a rhombic concave structure is arranged on the arc transition surface at the tail part of the air conditioner shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921343048.7U CN210821728U (en) | 2019-08-19 | 2019-08-19 | Passenger train air conditioner drag reduction structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921343048.7U CN210821728U (en) | 2019-08-19 | 2019-08-19 | Passenger train air conditioner drag reduction structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210821728U true CN210821728U (en) | 2020-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921343048.7U Active CN210821728U (en) | 2019-08-19 | 2019-08-19 | Passenger train air conditioner drag reduction structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN210821728U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110406353A (en) * | 2019-08-19 | 2019-11-05 | 郑州科林车用空调有限公司 | A kind of coach air conditioner drag reduction structures |
-
2019
- 2019-08-19 CN CN201921343048.7U patent/CN210821728U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110406353A (en) * | 2019-08-19 | 2019-11-05 | 郑州科林车用空调有限公司 | A kind of coach air conditioner drag reduction structures |
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