CN222496485U - Guide plate and automobile - Google Patents
Guide plate and automobile Download PDFInfo
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- CN222496485U CN222496485U CN202421410158.1U CN202421410158U CN222496485U CN 222496485 U CN222496485 U CN 222496485U CN 202421410158 U CN202421410158 U CN 202421410158U CN 222496485 U CN222496485 U CN 222496485U
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- 230000009467 reduction Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 239000000446 fuel Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
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- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000000465 moulding Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
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Abstract
本实用新型涉及乘用车设计制造技术领域，公开了一种导流板及汽车，包括曲面体以及分别与曲面体连接的第一安装部和第二安装部，第一安装部上设有第一连接孔，第二安装部上设有第二连接孔；曲面体包括第一曲面部以及分别与第一曲面部连接的第二曲面部和第三曲面部，第一安装部与第一曲面部连接，第二曲面部与第二安装部连接；第一安装部和第二安装部之间设有第四曲面部，且第四曲面部与第三曲面部连接。以解决现有汽车运用导流板在降低整车风阻系数时，存在导流板安装操作复杂、通用性较低的问题。
The utility model relates to the technical field of passenger car design and manufacturing, and discloses a deflector and a car, comprising a curved body and a first mounting part and a second mounting part respectively connected to the curved body, the first mounting part is provided with a first connecting hole, the second mounting part is provided with a second connecting hole; the curved body comprises a first curved portion part and a second curved portion part and a third curved portion part respectively connected to the first curved portion part, the first mounting part is connected to the first curved portion part, the second curved portion part is connected to the second mounting part; a fourth curved portion part is provided between the first mounting part and the second mounting part, and the fourth curved portion part is connected to the third curved portion part. The utility model is used to solve the problems of complicated deflector installation operation and low versatility when the existing car uses a deflector to reduce the wind resistance coefficient of the whole car.
Description
Technical Field
The utility model relates to the technical field of design and manufacture of passenger cars, in particular to a guide plate and an automobile.
Background
In recent years, energy conservation and emission reduction in the automobile industry are one of the important points of national energy strategy, wherein the reduction of the resistance of the automobile in running by reducing the windage coefficient of the whole automobile is an important measure for realizing energy conservation and emission reduction of the automobile, and the windage, namely the air resistance of the automobile in the running process, is received. The air resistance related to a general vehicle comprises three forms, namely, resistance generated by air flow striking the front of the vehicle, wherein the resistance is almost generated by air flow striking, friction resistance is generated by air striking the vehicle body, appearance resistance is particularly the main air resistance source during high-speed running of the vehicle, and the appearance resistance is mainly generated by a vacuum area at the rear lower part of the vehicle, and the larger the vacuum area is, the larger the appearance resistance is born by the vehicle.
Based on this, the main modes for reducing the windage coefficient of the whole vehicle include designing a streamlined body profile, reducing turbulence generation around the body, increasing the smoothness of the side surface of the body, reducing the wake turbulence, and the like, which are mostly required to be completed in the early stage of vehicle design and development. The aerodynamic performance of the automobile can be optimized in the whole automobile stage by adding the pneumatic accessories of the automobile and the guide plates, so that the aim of reducing the running resistance of the whole automobile is fulfilled. The influence of aerodynamic resistance reduction of different vehicle types on the vehicle is different, for example, the wind resistance coefficient (Cd) of the whole vehicle of the fuel vehicle is reduced by 0.01, the corresponding comprehensive oil consumption can be reduced by about 0.1L/100km, the same wind resistance coefficient is reduced by the range-increasing vehicle type, the pure electric vehicle can be improved by 6-10 km, and the pure electric vehicle can be improved by about 10-15 km, so that the important effects of aerodynamic drag reduction on the energy consumption and the continuous voyage of the whole vehicle are further described.
In the existing research about reducing the wind resistance coefficient of the whole vehicle, most of the important points are on the whole vehicle modeling design, and the pneumatic resistance generated by the impact of high-speed air flow on the chassis at the rear lower part of the vehicle body chassis is reduced by considering that a sheet metal part and a guide plate are arranged on a secondary frame. In addition, the design of the deflector for mounting the rear lower chassis has larger limitation on the market, and the deflector has more complex mounting operation, large deflector area and lower universality.
Disclosure of utility model
The utility model aims to provide a guide plate and an automobile, and aims to solve the problems that the installation and the operation of the guide plate are complex and the universality is low when the wind resistance coefficient of the whole automobile is reduced by using the guide plate in the prior automobile.
The guide plate comprises a curved surface body, a first installation part and a second installation part, wherein the first installation part and the second installation part are respectively connected with the curved surface body, a first connection hole is formed in the first installation part, a second connection hole is formed in the second installation part, the curved surface body comprises a first curved surface part, a second curved surface part and a third curved surface part, the second curved surface part and the third curved surface part are respectively connected with the first curved surface part, the first installation part is connected with the first curved surface part, the second curved surface part is connected with the second installation part, a fourth curved surface part is arranged between the first installation part and the second installation part, and the fourth curved surface part is connected with the third curved surface part.
The automobile chassis connecting structure has the beneficial effects that 1, the surface of the curved surface body is utilized to interfere air flow entering the rear lower part of an automobile, so that the impact of the air flow on the automobile body rear chassis is reduced, the aerodynamic resistance born by the original automobile body at the rear lower part of the automobile is reduced, the pneumatic drag reduction effect on the automobile is realized, meanwhile, the connection between the automobile chassis and the automobile body of most automobile types can be realized by utilizing bolts on the first installation part and the second installation part due to the simple integral structure of the guide plate, and the problems of complex installation and operation and low universality of the existing guide plate are solved.
2. The detachable connection realizes the replaceability of the deflector after long-time use while realizing convenient installation, and ensures the effect of reducing air resistance after air flow disturbance.
3. The curved surface body is formed by combining a plurality of curved surface parts, the arc radius constraint range is carried out on each curved surface part, the shielding area of the guide plate to the rear lower part of the vehicle and the inside of the vehicle body can be better controlled according to the height difference between the installation position of the guide plate and the chassis, the optimal guide plate molded surface is matched, the air flow is reduced to the inside of the vehicle body, a positive pressure area is formed, and the aim of reducing the wind resistance coefficient of the whole vehicle is fulfilled.
Preferably, the radius of the curved arc of the first curved surface part is 150-250 mm, the radius of the curved arc of the second curved surface part is 120-180 mm, the radius of the curved arc of the third curved surface part is 130-170 mm, and the radius of the curved arc of the fourth curved surface part is 400-500 mm.
Preferably, the height of the whole guide plate is 150-200 mm, the width of the whole guide plate is 230-280 mm, and the length of the whole guide plate is 160-180 mm.
Preferably, the thicknesses of the curved surface body, the first mounting portion and the second mounting portion are all 2-3.5 mm.
Preferably, the first mounting portion and the second mounting portion are planar bodies.
Preferably, the first curved surface part and the second curved surface part are connected by vertical rounding, the radius of the rounding is 3-6 mm, and the first curved surface part and the third curved surface part and the fourth curved surface part are all connected in a tangent mode.
Preferably, the material of the guide plate is rubber or plastic.
Preferably, an automobile comprises the guide plate, and the guide plate is arranged on a rear auxiliary frame of an automobile body.
Drawings
FIG. 1 is a three-dimensional view of a baffle in a front view in accordance with an embodiment of the present utility model;
FIG. 2 is a perspective view of a baffle in a downward right oblique view in accordance with an embodiment of the present utility model;
fig. 3 is a three-dimensional view of a baffle in a right-hand view in accordance with an embodiment of the present utility model.
Detailed Description
The following is a further detailed description of the embodiments:
Reference numerals in the drawings of the specification include a first curved surface portion 1, a second curved surface portion 2, a third curved surface portion 3, a fourth curved surface portion 4, a first mounting portion 5, a first connection hole 51, a second mounting portion 6, and a second connection hole 61.
Examples
The embodiment is basically as shown in fig. 1-3, and the baffle shown in fig. 1 comprises a curved surface body, and a first installation part 5 and a second installation part 6 which are respectively connected with the curved surface body, wherein the first installation part 5 and the second installation part 6 are used for detachably installing the baffle on a rear lower chassis of an automobile, and the curved surface body enables the whole baffle to be of an irregular and asymmetric three-dimensional structure so as to ensure that only the first installation part 5 and the second installation part 6 are contacted with the chassis after the installation of the baffle, thereby realizing the installation of the baffle without interfering with the original automobile body component. After the automobile rear chassis is installed, the air flow entering the rear lower part of the automobile is disturbed through the surface of the curved surface body, so that the impact of the air flow on the automobile rear chassis is reduced, the aerodynamic resistance of the automobile body at the rear lower part of the original automobile is reduced, and the pneumatic drag reduction effect of the automobile is realized.
As shown in fig. 1, the first mounting portion 5 is provided with a first connecting hole 51, the second mounting portion 6 is provided with a second connecting hole 61, bolts are screwed into the first connecting hole 51 and the second connecting hole 61, and the detachable mounting of the deflector and the vehicle body is realized through the bolts. In the embodiment, the first installation part 5 is fixed on the sheet metal part of the chassis of the automobile body through bolts, the second installation part 6 is fixed on the rear auxiliary frame of the automobile through bolts, and in the traditional fuel-oil type automobile, the range-extended type automobile, the new energy passenger automobile and other automobile types including the whole automobile rear lower chassis without covering parts, the sheet metal part and the automobile with the rear auxiliary frame of the connecting rod structure can be subjected to the bolt connection installation of the guide plate, so that the universality of the guide plate is greatly improved, in addition, the bolt connection operation is simple, and the direct installation and the use of most automobiles can be realized. Through increasing the quantity of first connecting hole 51 and second connecting hole 61, can improve the joint strength and the stability of installation of guide plate, and change the distribution position of first connecting hole 51 and second connecting hole 61 then can make the guide plate adapt to the assembly between sheet metal component and the back sub vehicle frame of back chassis under more motorcycle types. In addition, the first installation part 5 and the second installation part 6 are both plane bodies so as to improve the connection area of the installation surface of the guide plate, the sheet metal part and the rear auxiliary frame, thereby further improving the connection stability and the connection strength of the guide plate.
The curved surface body includes a first curved surface portion 1, a second curved surface portion 2 connected to the right side of the first curved surface portion 1, and a third curved surface portion 3 connected to the lower side of the first curved surface portion 1, and as shown in fig. 1, a first mounting portion 5 is connected to the lower side of the first curved surface portion 1 and the third curved surface portion 3, and a second mounting portion 6 is connected to the lower side of the second curved surface portion 2 and the right side of the third curved surface portion 3. As shown in fig. 2 and 3, a fourth curved surface portion 4 is further disposed between the first mounting portion 5 and the second mounting portion 6, and the top of the fourth curved surface portion 4 is connected with the lower portion of the third curved surface portion 3, in this embodiment, the connection manner between each curved surface portion in each curved surface body and the first mounting portion and the second mounting portion 6 is an integral molding.
The curved surface body, the first installation part 5 and the second installation part 6 are made of rubber or plastic (namely, the material of the guide plate), the rubber or plastic has elasticity, can keep the shape unchanged under the action of air flow, is not easy to damage, is rebound after being deformed when not being shockable, can not generate noise due to vibration of a vehicle body after being installed, and has light weight and low price, and the rubber or plastic can be replaced with low cost after being damaged after being used for a long time by combining the detachability of the guide plate, so that the requirements of more users are met. In addition, the first curved surface part 1 and the second curved surface part 2 and the first installation part 5 and the first curved surface part 1 are vertically connected, in this embodiment, all vertical connection parts are vertically rounded connection, namely, the vertical connection parts of the two are rounded, the radius of the rounded corner is 3-6 mm, the first curved surface part 1 and the third curved surface part 3, the third curved surface part 3 and the fourth curved surface part 4, and the second curved surface part 2 and the second installation part 6 are tangentially connected, and the tangential connection parts are smoothly processed, so that the connection parts between every two parts are smoothly transited, the smoothness of the whole profile of the guide plate is ensured, and the purpose of reducing airflow impact is realized.
The curved arc radius of the first curved surface part 1 is 150-250 mm, the curved arc radius of the second curved surface part 2 is 120-180 mm, the curved arc radius of the third curved surface part 3 is 130-170 mm, the curved arc radius of the fourth curved surface part 4 is 400-500 mm, the range of the arc radius is limited and set on the basis of the structure below a conventional vehicle type, so that the overall arrangement requirement of the whole vehicle is met on the premise of ensuring the air flow interference intensity of a curved surface body, and the range of the arc radius constraint can better control the shielding area of a guide plate to the rear lower part of the vehicle and the inside of the vehicle body according to the height difference between the first installation part 5 and the sheet metal part, and match the profile of the optimal guide plate, thereby reducing the impact of the air flow to the inside of the vehicle body and forming a positive pressure area, and realizing the purpose of reducing the wind resistance coefficient of the whole vehicle.
In addition, in this embodiment, the height of the whole flow guiding plate in the Z direction is 150 to 200mm, the width of the whole flow guiding plate in the Y direction is 230 to 280mm, the length of the whole flow guiding plate in the X direction is 160 to 180mm, wherein the coordinate axis is in the state shown in fig. 1 as an example, the origin of coordinates is established at the lower right corner of fig. 1, the origin and the bottom surface of the first installation part 5 are located at the same horizontal plane, the Z axis is the height of the flow guiding plate vertically upwards, the Y axis is the width of the flow guiding plate from the left side of the first curved surface part 1 to the right side of the second curved surface part 2, and the X axis is the length of the flow guiding plate between the first installation part 4 and the second installation part 6. The volume of the guide plate is controlled while the assembly space conditions of the automobiles of all automobile types are met, so that the change of the air resistance at the rear end of the original automobile chassis is realized under the condition that the interference to the original automobile chassis is minimum. The thickness of the curved surface body, the first installation portion 5 and the second installation portion 6 is 2-3.5 mm, so that the structural stability of the guide plate is guaranteed, the whole weight of the guide plate is reduced, and the influence of the installation of the guide plate on the whole structure is reduced while the cost is reduced.
Finally, the embodiment also relates to an automobile, wherein the guide plate is arranged on the rear auxiliary frame at the rear lower part of the automobile body and is arranged on the automobile.
Through reasonable size design, the guide plate can play a good pneumatic drag reduction effect on different passenger cars (especially Cheng Chexing is increased), the additionally arranged guide plate can well guide airflow to the lower space behind the car body, the impact of the airflow in the area behind the guide plate Z on the car body is obviously reduced, and experiments prove that the guide plate is generally reduced by about 0.003-0.006 of the windage coefficient (Cd) of the whole car after being installed, the whole car is purely electric for continuous voyage and is promoted by about 2-5 km, and the fuel consumption of the fuel car is reduced by about 0.05L/100km.
The guide plate can be installed on various automobiles such as a new energy passenger car with traditional fuel oil, extended range and no covering part on the lower chassis behind the whole car, is a static part installed on the car body, is made of light and low-cost materials, does not need additional energy supply, reduces the impact of turbulent airflow of the chassis on the lower chassis behind when the car runs at high speed, reduces the pneumatic resistance of the rear car body, and achieves the aim of reducing the running resistance of the whole car. The guide plate has simple integral structure, convenient installation and low cost, and has higher economic benefit.
The foregoing is merely exemplary of the present utility model, and specific technical solutions and/or features that are well known in the art have not been described in detail herein. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present utility model, and these should also be regarded as the protection scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the practical applicability of the patent. The protection scope of the present utility model is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421410158.1U CN222496485U (en) | 2024-06-19 | 2024-06-19 | Guide plate and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421410158.1U CN222496485U (en) | 2024-06-19 | 2024-06-19 | Guide plate and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222496485U true CN222496485U (en) | 2025-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421410158.1U Active CN222496485U (en) | 2024-06-19 | 2024-06-19 | Guide plate and automobile |
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|---|---|
| CN (1) | CN222496485U (en) |
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- 2024-06-19 CN CN202421410158.1U patent/CN222496485U/en active Active
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