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Underbody structure of automobile

A car body and automobile technology, applied in the direction of substructure, superstructure, vehicle parts, etc.

Active Publication Date: 2019-10-25
MAZDA MOTOR CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, in the case where the entire battery storage box is firmly constructed as in Patent Document 2, although the protection performance of the battery is improved, there is still room for improvement in terms of weight reduction of the vehicle body.

Method used

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Embodiment Construction

[0032] An embodiment of the present invention will be described in detail below based on the drawings.

[0033] figure 1 is a bottom view of the lower body structure of the automobile of this embodiment, figure 2 yes figure 1 The main part of the enlarged figure, image 3 viewed from above figure 1 A three-dimensional cross-sectional view of the main part of the A-A line, Figure 4 It is a longitudinal sectional view showing the main part of the central part in the width direction of the channel part, Figure 5 (a) is viewed from obliquely above figure 1 The three-dimensional cross-sectional view of the main part of the B-B line in, Figure 5 (b) is figure 1 A cross-sectional view of the main part of the C-C line, Image 6 (a) is a perspective view of the upper side panel of the front side underfloor beam viewed obliquely from above in front, Image 6 (b) is with Image 6 An enlarged sectional view of the beam under the front floor corresponding to line D-D in (a), ...

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Abstract

To provide an automobile underbody structure in which auxiliary equipment such as a battery is arranged under the floor so that the vehicle does not become heavier and the auxiliary equipment can be protected from severe side impacts such as columnar collisions. An auxiliary machine (40) is arranged in the space S between the floor frame (9a) extending in the front-rear direction and the channel side beam (8a) in the vehicle width direction on the lower side of the floor (4), and the beam (40) extending in the vehicle width direction is installed. 2, 3), the beam (2, 3) straddles the floor frame (9a) on the side where the auxiliary machine (40) is installed in the vehicle width direction and the side opposite to the side where the auxiliary machine (40) is installed The tunnel side beams (8b) on the side, and the tunnel corresponding parts (21, 31) corresponding to the tunnel part (4a) in the width direction of the beams (2, 3) are set so that the vehicle width direction resistance is higher than that of the auxiliary machine (40 ) corresponding to the auxiliary machine corresponding parts (31, 32) have lower endurance in the vehicle width direction.

Description

technical field [0001] The present invention relates to an underbody structure of an automobile in which auxiliary machines such as batteries are arranged below a floor. Background technique [0002] Patent Documents 1 and 2 disclose the underbody structure of an automobile in which auxiliary machines such as batteries are disposed below the floor. [0003] In Patent Document 1, the battery module as an auxiliary machine is arranged on the left and right sides of the floor, from the back side of the floor, in the space surrounded by the floor frame, the tunnel frame (tunnel side beams), and the seat beams on the front and rear sides. In the region, the floor frame and the tunnel frame are vehicle body rigid members extending in the front-rear direction, and the seat beams on the front and rear sides are vehicle body rigid members extending in the vehicle width direction. [0004] That is, the battery module of Patent Document 1 is arranged on the floor so as to be surrounde...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D25/20
CPCB60K1/04B60K13/04B60K2001/0438B60K2015/0634B60Y2306/01B62D21/157B62D25/20B60R16/04B62D21/16
Inventor 影山和宏田中润一
Owner MAZDA MOTOR CORP
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