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CN-122009347-A - Automobile bottom guard board capable of reducing wind resistance

CN122009347ACN 122009347 ACN122009347 ACN 122009347ACN-122009347-A

Abstract

The application discloses an automobile bottom guard board capable of reducing wind resistance, which belongs to the technical field of automobile wind resistance reduction and comprises an oil tank bottom guard board body, wherein the oil tank bottom guard board body comprises an oil tank protection area, a guard board connecting area, a wind resistance optimizing area and a strength reinforcing area, the wind resistance optimizing area is positioned at the rear end of the oil tank bottom guard board body, a flanging board is arranged on the wind resistance optimizing area and is vertically arranged along the edge of the rear end of the oil tank bottom guard board body, the flanging board can effectively improve the wind resistance coefficient of the whole automobile, in which a rear suspension guard board cannot be additionally arranged below a rear suspension due to an exhaust pipe and the like, and experiments prove that the optimization can reduce wind resistance by 6counts and increase endurance by 1.2km.

Inventors

  • MA JINGJING
  • Rui Mingqi
  • GE YIHAO
  • DONG JUNCHAO

Assignees

  • 奇瑞新能源汽车股份有限公司

Dates

Publication Date
20260512
Application Date
20260108

Claims (10)

  1. 1. The automobile bottom guard plate capable of reducing wind resistance is characterized by comprising an oil tank lower guard plate body (1), wherein the oil tank lower guard plate body (1) comprises an oil tank protection area (2), a guard plate connecting area (3), a wind resistance optimizing area (4) and a strength reinforcing area (5), the wind resistance optimizing area (4) is located at the rear end of the oil tank lower guard plate body (1), a flanging plate (41) is arranged on the wind resistance optimizing area (4), and the flanging plate (41) is vertically arranged along the edge of the rear end of the oil tank lower guard plate body (1).
  2. 2. A wind-resistant automobile underbody shield according to claim 1, wherein the vertical height of the hemming plate (41) is 30mm.
  3. 3. The automobile bottom guard plate capable of reducing wind resistance according to claim 2, wherein the strength enhancement area (5) is located between the edge of the flanging plate (41) and the edge of the lower guard plate body (1) of the oil tank, a right-angle triangular block (51) is arranged on the strength enhancement area (5), one side right-angle surface of the right-angle triangular block (51) is fixedly connected to the inner wall of the flanging plate (41), the other side right-angle surface of the right-angle triangular block is fixedly connected to the bottom end of the lower guard plate body (1) of the oil tank, and the flanging plate (41), the right-angle triangular block (51) and the lower guard plate body (1) of the oil tank are integrally arranged.
  4. 4. The automobile bottom guard plate capable of reducing wind resistance according to claim 3 is characterized by further comprising a bottom battery pack, an oil tank and a rear auxiliary frame, wherein the oil tank guard zone (2) is located in the middle of the top end of the front surface of the oil tank bottom guard plate body (1), the oil tank guard zone (2) is used for covering an oil tank area, and the oil tank guard zone (2) is located behind the bottom battery pack of the whole automobile and in front of the rear auxiliary frame.
  5. 5. The automobile bottom guard board capable of reducing wind resistance according to claim 4, wherein the top end surface of the oil tank guard area (2) is smooth integrally, and a plurality of water leakage holes (21) are formed.
  6. 6. The automobile bottom guard board capable of reducing wind resistance according to claim 5, wherein the guard board connecting area (3) is located around the lower guard board body (1) of the oil tank and consists of a guard board front end connecting area (31), a guard board rear end connecting area (33) and a guard board side edge connecting area (35).
  7. 7. The automobile bottom guard plate capable of reducing wind resistance according to claim 6, further comprising a battery pack shell, an oil tank support and an automobile body frame, wherein the guard plate front end connecting area (31) enables the oil tank lower guard plate body (1) and the rear end of the battery pack shell to be connected through an oil tank lower guard plate connecting area front end mounting hole (32), the guard plate rear end connecting area (33) enables the oil tank lower guard plate body (1) and the oil tank support to be connected through an oil tank lower guard plate connecting area rear end mounting hole (34), and the guard plate side edge connecting area (35) enables the oil tank lower guard plate body (1) and the automobile body frame to be connected through an oil tank lower guard plate connecting area side edge mounting hole (36).
  8. 8. A wind-resistant automobile bottom guard plate according to claim 7, wherein the back of the oil tank guard region (2) is connected with the front end mounting hole (32) of the oil tank lower guard plate connecting region, the rear end mounting hole (34) of the oil tank lower guard plate connecting region and the side edge mounting hole (36) of the oil tank lower guard plate connecting region through three reinforcing ribs (22).
  9. 9. The automobile bottom guard board capable of reducing wind resistance according to claim 8, wherein the height of the reinforcing ribs (22) is 15mm.
  10. 10. The automobile bottom guard board capable of reducing wind resistance according to claim 9, wherein the length of each right-angle triangular block (51) is 45mm, and the spacing distance between adjacent right-angle triangular blocks (51) along the edge line of the flanging plate (41) is 96mm in one group of right-angle triangular blocks (51).

Description

Automobile bottom guard board capable of reducing wind resistance Technical Field The application belongs to the technical field of automobile windage resistance reduction, and particularly relates to an automobile bottom guard board capable of windage resistance reduction. Background The specific gravity of wind resistance in the whole vehicle energy consumption is larger under the condition that the vehicle runs at a high speed, and the aim of reducing the whole vehicle energy consumption is to reduce the wind resistance of the whole vehicle. The automobile wind resistance is mainly related to the external model of the automobile, but if the automobile is a sacrificial model which is one-taste for meeting the wind resistance, the automobile is easy to be homogeneous, the individual demands of customers are difficult to meet, and a model compromise method is not feasible in practical situations. Disclosure of Invention In order to solve the problems, the application provides an automobile bottom guard board capable of reducing wind resistance. The automobile bottom guard plate capable of reducing wind resistance comprises an oil tank lower guard plate body, wherein the oil tank lower guard plate body comprises an oil tank protection area, a guard plate connection area, a wind resistance optimization area and a strength enhancement area, the wind resistance optimization area is positioned at the rear end of the oil tank lower guard plate body, a flanging plate is arranged on the wind resistance optimization area, and the flanging plate is vertically arranged along the edge of the rear end of the oil tank lower guard plate body. Preferably, the vertical height of the flanging plate is 30mm. Preferably, the strength enhancement area is positioned between the flanging plate and the edge of the lower guard plate body of the oil tank; the right-angle triangular block is arranged on the strength reinforcing area, one side right-angle surface of the right-angle triangular block is fixedly connected to the inner wall of the flanging plate, the other side right-angle surface of the right-angle triangular block is fixedly connected to the bottom end of the lower guard plate body of the oil tank, and the flanging plate, the right-angle triangular block and the lower guard plate body of the oil tank are integrally arranged. The vehicle body comprises a vehicle body, a front protection plate body, a rear protection plate body, a bottom battery pack, an oil tank and a rear auxiliary frame, wherein the oil tank protection area is positioned in the middle of the top end of the front surface of the lower protection plate body of the oil tank, the oil tank protection area is used for covering the oil tank area, and the oil tank protection area is positioned behind the vehicle bottom battery pack and in front of the rear auxiliary frame. Preferably, the top end surface of the oil tank protection area is wholly smooth, and a plurality of water leakage holes are formed. Preferably, the guard board connecting area is positioned around the lower guard board body of the oil tank and is composed of a guard board front end connecting area, a guard board rear end connecting area and a guard board side edge connecting area. The automobile body frame is characterized by further comprising a battery pack shell, an oil tank support and an automobile body frame, wherein the front end connecting area of the guard plate is connected with the rear end of the battery pack shell through a front end mounting hole of the lower guard plate connecting area of the oil tank, the rear end connecting area of the guard plate is connected with the lower guard plate body of the oil tank and the oil tank support through a rear end mounting hole of the lower guard plate connecting area of the oil tank, and the side edge connecting area of the guard plate is connected with the lower guard plate body of the oil tank and the automobile body frame through a side edge mounting hole of the lower guard plate connecting area of the oil tank. Preferably, the back of the oil tank protection area is connected with the side edge mounting holes of the oil tank lower guard board connection area through three reinforcing ribs around the front end mounting holes of the oil tank lower guard board connection area and the rear end mounting holes of the oil tank lower guard board connection area. Preferably, the height of the reinforcing ribs is 15mm. Preferably, the length of each right-angle triangular block is 45mm, and the spacing distance between adjacent right-angle triangular blocks along the edge line of the flanging plate in one group of right-angle triangular blocks is 96mm. Compared with the prior art, the application has the following advantages: For the extended range vehicle, because the vehicle bottom guard board is difficult to cover the bottom of the whole vehicle due to the factors such as post-elimination and exhaust, the current situation that the extended