CN-121989853-A - Bumper cover structure

Abstract

The present invention relates to a bumper cover structure. In a bumper cover of a front bumper, a radar unit is disposed between left and right grille parts in a grille opening, and a radome is disposed on a vehicle front side of the radar unit. The radar unit is mounted on the base part of the radar cover, and the upper locking part and the lower locking part of the base part are locked with the upper side and the lower side of the grille opening part respectively and are mounted on the bumper cover. Accordingly, the shape of the bumper cover deformed by the light impact is restored, and the relative position of the radar unit with respect to the grille opening is returned, so that the radar function of the radar unit can be prevented from being lowered.

Inventors

• IKENO EISUKE

Assignees

• 丰田自动车株式会社

Dates

Publication Date

20260508

Application Date

20251031

Priority Date

20241106

Claims (2)

1. 1. A bumper cover structure comprising: a bumper cover body having a grille opening formed therethrough in a vehicle front-rear direction; a grill member disposed at the grill opening; A radar device disposed at a vehicle width direction central portion of the grille member on a vehicle rear side of the grille opening, configured to radiate radar waves toward a vehicle front side and to receive reflected waves of the radar waves, and And a cover member disposed at the grille opening and covering a vehicle front side of the radar device, the radar device being attached to the cover member, and a vehicle upper portion side portion and a vehicle lower portion side portion of the cover member being attached to the bumper cover main body, respectively, the radar wave and the reflected wave being able to pass through the cover member.
2. 2. The bumper cover structure according to claim 1, wherein comprising: The cover member is attached to the bumper cover body at both sides in the vehicle width direction in each of a portion on the vehicle upper side and a portion on the vehicle lower side.

Description

Bumper cover structure Technical Field The present invention relates to a bumper cover structure for a vehicle. Background A front grille of a vehicle is disclosed in japanese patent laid-open publication 2017-077804. The front grille is provided in front of a front beam, and a millimeter wave radar is mounted on the front beam via a bracket. In the front grille, a radome holding portion is fitted into an opening formed in a vehicle width direction center portion, and a radome composed of a member that can transmit radio waves is fitted into the radome holding portion. The front of the millimeter wave radar is covered by the radome, thereby protecting the millimeter wave radar from wind, rain, snow, sand, flying stones, etc. Disclosure of Invention In general, in a vehicle, a millimeter wave radar provided as a radar device for monitoring a vehicle front side emits an electric wave (radar wave) to the vehicle front side through a grille opening formed in a bumper cover, and receives a reflected wave reflected by an object in front of the vehicle. At this time, the radar wave can be transmitted and received in a predetermined angle range, thereby realizing a desired radar function by the millimeter wave radar in the vehicle. On the other hand, in a vehicle, a bumper cover of a bumper is deformed by an impact, and the impact is absorbed by the bumper cover. In this case, in the millimeter wave radar, if the bumper cover or the like is deformed to change the angle range through which the radar wave or the reflected wave passes, the required radar function cannot be realized. Here, in the vehicle, a material having elasticity is used for the bumper cover or the like, and even if the bumper cover or the like is deformed by receiving an impact (light impact) smaller than a predetermined impact, the performance can be ensured so that the shape of the bumper cover or the like is restored after the impact is released. In such a test for ensuring the performance of the bumper, the test is performed by a so-called pendulum test or the like. However, in the millimeter wave radar, when the shape of the bumper cover or the like is restored, the relative position or the like with respect to the bumper cover or the like may be changed, and a desired radar function may not be maintained. The present invention has been made in view of the above circumstances, and an object thereof is to provide a bumper cover structure capable of suppressing a decrease in radar function of a radar device at the time of shape recovery. A bumper cover structure according to a first aspect of the present invention for achieving the above object includes: a bumper cover body having a grille opening formed therethrough in a vehicle front-rear direction; A grille member disposed in the grille opening, a radar device disposed in a vehicle width direction center portion of the grille member on a vehicle rear side of the grille opening, radiating radar waves toward a vehicle front side, and receiving reflected waves of the radar waves, and And a cover member disposed at the grille opening and covering a vehicle front side of the radar device, the radar device being attached to the cover member, and a vehicle upper portion side portion and a vehicle lower portion side portion of the cover member being attached to the bumper cover main body, respectively, the radar wave and the reflected wave being able to pass through the cover member. In the bumper cover structure according to the first aspect, the grille opening is formed in the bumper cover body, and the grille opening is formed to penetrate in the vehicle longitudinal direction of the bumper cover body. The grill opening is provided with grill members on both sides in the vehicle width direction, and the radar device is provided in the center in the vehicle width direction. The radar apparatus radiates radar waves toward the vehicle front side at the vehicle rear side of the grille opening, and receives reflected waves of the radar waves. In addition, a cover member that covers the front side of the radar device in the vehicle and is permeable to radar waves and reflected waves is disposed in the grille opening, and the radar device is mounted on the cover member. Here, the upper portion and the lower portion of the cover member are attached to the bumper cover main body, respectively. Therefore, even if the bumper cover main body is deformed and the grille opening is deformed, the change in the relative position of the radar device with respect to the grille opening is suppressed by the shape restoration. This can suppress a decrease in radar function of the radar device when the deformed bumper cover body is restored in shape. A bumper cover structure according to a second aspect includes, in a first aspect: The cover member is attached to the bumper cover body at both sides in the vehicle width direction in each of a portion on the vehicle upper side and a portion on the vehicle lower side. In