Side impact energy absorption threshold reinforcing structure

Abstract

The utility model provides a side collision energy absorption threshold reinforcing structure which comprises an energy absorption box arranged in a threshold cavity, the energy absorption box comprises a plurality of sets of threshold supporting plates arranged in parallel, and the sides, facing the outside of a vehicle, of the threshold supporting plates are perpendicularly and fixedly connected with threshold connecting plates. A doorsill reinforcing plate is vertically and fixedly connected to the bottom of the doorsill supporting plate, the doorsill connecting plate is fixedly connected with the inner side wall and the inner top wall of a vehicle body doorsill, and the doorsill reinforcing plate is fixedly connected with the inner bottom wall of the vehicle body doorsill. The doorsill reinforcing structure solves the problem that an existing doorsill reinforcing structure is insufficient in strength.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile bodies, in particular to a side impact energy absorption door sill reinforcement structure. Background Art

[0002] In recent years, with the rapid development of new energy vehicles, the requirements for automobile safety have become more and more stringent, especially the safety control of fuel vehicles modified into new energy vehicles is more stringent. Most of the battery packs of existing new energy vehicles are arranged at the bottom of the floor between the front and rear axles. During the column collision test, the door sill is prone to collision safety deformation. In response to this problem, some models on the market have set up reinforcement structures at the door sill to prevent serious deformation of the door sill during side collisions, which is beneficial to protecting the safety of the battery. For example, a door sill reinforcement plate assembly structure with announcement number CN216153869U achieves reinforcement by setting an M-shaped energy absorption box in the door sill cavity, but the energy absorption box and the inner side wall of the door sill are only welded by two bent edges, and the other positions are in a suspended state, and the overall structural strength is insufficient, and the protection performance of the battery is poor. Therefore, it is necessary to invent a new side collision energy absorption door sill reinforcement structure. Utility Model Content

[0003] The utility model aims to provide a side impact energy absorption door sill reinforcement structure to solve the problem of insufficient strength of the existing door sill reinforcement structure.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A side impact energy absorption threshold reinforcement structure includes an energy absorption box arranged in a threshold cavity, the energy absorption box includes a plurality of groups of threshold support plates arranged in parallel, a threshold connecting plate is vertically fixedly connected to the side of the threshold support plate facing the outside of the vehicle, a threshold reinforcement plate is vertically fixedly connected to the bottom of the threshold support plate, the threshold connecting plate is fixedly connected to the inner side wall and the inner top wall of the vehicle body threshold, and the threshold reinforcement plate is fixedly connected to the inner bottom wall of the vehicle body threshold.

[0006] Preferably, in combination with the above solution, the threshold support plate is bent toward one side of the threshold connecting plate to provide a side fixing edge, and the side fixing edge is fixedly connected to the inner side surface of the threshold connecting plate.

[0007] Preferably, in combination with the above solution, the sill support plate is bent toward the sill reinforcement plate to provide a lower fixed edge, and the lower fixed edge is fixedly connected to the upper end surface of the sill reinforcement plate.

[0008] Preferably, in combination with the above solution, a first reinforcing flange is provided on the edge of the door sill support plate.

[0009] Preferably, in combination with the above solution, a first reinforcing rib of an X-shaped structure is provided on the threshold support plate.

[0010] Preferably, in combination with the above solution, an upper fixed edge is bent at the upper end of the door sill connecting plate, and the upper fixed edge is fixedly connected to the inner top wall of the vehicle body door sill.

[0011] Preferably, in combination with the above solution, a plurality of groups of second reinforcing ribs are arranged at intervals on the threshold connecting plate, and the second reinforcing ribs are arranged along the up-down direction.

[0012] Preferably, in combination with the above solution, a second reinforcing flange is provided on the side of the door sill reinforcement plate facing the interior of the vehicle.

[0013] Preferably, in combination with the above solution, a plurality of groups of connecting bosses are arranged at intervals on the door sill reinforcement plate, and connecting holes are arranged on the connecting bosses.

[0014] Preferably, in combination with the above solution, the connecting boss is connected to a buckle on the expansion rubber block, and the expansion rubber block is arranged in the gap between the door sill support plates.

[0015] Beneficial effects of the utility model: the utility model arranges an energy absorption box structure with a threshold support plate, a threshold connecting plate and a threshold reinforcement plate in the threshold cavity. The structure has strong connection stability and high structural rigidity. The deformation amount becomes smaller during the collision. It can play a good energy absorption role during the collision and can effectively protect the battery.

[0016] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a side impact energy absorption door sill reinforcement structure diagram.

[0018] Figure 2 This is a structural diagram of the threshold support plate in the utility model.

[0019] Figure 3 It is a structural diagram of the threshold connecting plate in the utility model.

[0020] Figure 4 It is a structural diagram of the door sill reinforcement plate in the utility model. DETAILED DESCRIPTION

[0021] like Figure 1A side impact energy absorption door sill reinforcement structure shown includes an energy absorption box arranged in a door sill cavity, which can be arranged below the B-pillar or at intervals along the length direction of the door sill. The energy absorption box includes a plurality of sets of door sill support plates 1 arranged in parallel, a door sill connecting plate 2 is vertically fixedly connected to the side of the door sill support plate 1 facing the outside of the vehicle, a door sill reinforcement plate 3 is vertically fixedly connected to the bottom of the door sill support plate 1, the door sill connecting plate 2 is fixedly connected to the inner side wall and the inner top wall of the vehicle body door sill by welding, and the door sill reinforcement plate 3 is fixedly connected to the inner bottom wall of the vehicle body door sill by welding.

[0022] In order to better fix the threshold support plate 1 and the threshold connecting plate 2 and ensure the stability of the connection, the threshold support plate 1 is bent toward the side of the threshold connecting plate 2 to provide a side fixing edge 11, and the side fixing edge 11 is fixedly connected to the inner side surface of the threshold connecting plate 2 by welding.

[0023] In order to better fix the threshold support plate 1 and the threshold reinforcement plate 3 and ensure the stability of the connection, the threshold support plate 1 is bent toward the side of the threshold reinforcement plate 3 to provide a lower fixed edge 12, and the lower fixed edge 12 is fixedly connected to the upper end surface of the threshold reinforcement plate 3 by welding.

[0024] In order to increase the structural rigidity of the side of the rocker support plate 1 facing the interior of the vehicle, a first reinforcing flange 13 is provided at the edge of the rocker support plate 1 .

[0025] In order to increase the structural rigidity of the threshold support plate 1, a first reinforcing rib 14 of an X-shaped structure is protruded from the threshold support plate 1. In this embodiment, the first reinforcing rib 14 is an X-shaped structure, and reinforcing ribs of other structures may also be provided to ensure the overall structural rigidity.

[0026] In order to facilitate the fixed connection between the threshold connecting plate 2 and the inner top wall of the vehicle body threshold and ensure the stability of the connection, the upper end of the threshold connecting plate 2 is bent to provide an upper fixed edge 21, and the upper fixed edge 21 is fixedly connected to the inner top wall of the vehicle body threshold.

[0027] In order to increase the structural rigidity of the threshold connecting plate 2 , a plurality of groups of second reinforcing ribs 22 are arranged at intervals on the threshold connecting plate 2 , and the second reinforcing ribs 22 are arranged in the up-and-down direction.

[0028] In order to increase the structural rigidity of the rocker connecting plate 2 , a second reinforcing flange 31 is provided on one side of the rocker reinforcing plate 3 facing the interior of the vehicle.

[0029] In order to facilitate the installation of the expansion rubber block, a plurality of groups of connecting bosses 32 are arranged at intervals on the threshold reinforcement plate 3, and a connecting hole is arranged on the connecting boss 32. The connecting hole can be connected with the buckle at the bottom of the expansion rubber block.

[0030] In order to facilitate the installation of the expansion rubber block, the connection boss 32 is connected to the buckle on the expansion rubber block, and the expansion rubber block is arranged in the gap between the door sill support plates 1. When the expansion rubber block expands after being heated, it fills the gap between the energy absorption box and the door sill, which not only ensures that the connection between the energy absorption box and the door sill is more stable, but also plays a certain buffering role.

[0031] In order to achieve a lightweight design, the threshold support plate 1 and the threshold connecting plate 2 are both provided with a plurality of groups of weight-reducing holes, and the threshold reinforcing plate 3 is provided with a plurality of groups of weight-reducing grooves 33 .

[0032] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "bottom", "inside", "outside", "one end", "one side", "two ends", "both sides", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] The utility model is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the utility model, or they are directly applied to other occasions, they all fall within the protection scope of the utility model.

Claims

1. A side impact energy absorption door sill reinforcement structure, comprising an energy absorption box arranged in a door sill cavity, characterized in that: The energy absorption box comprises a plurality of groups of sill support plates (1) arranged in parallel, wherein the side of the sill support plate (1) facing the outside of the vehicle is vertically fixedly connected to a sill connecting plate (2), the bottom of the sill support plate (1) is vertically fixedly connected to a sill reinforcement plate (3), the sill connecting plate (2) is fixedly connected to the inner side wall and the inner top wall of the vehicle body sill, and the sill reinforcement plate (3) is fixedly connected to the inner bottom wall of the vehicle body sill.

2. The side impact energy absorption door sill reinforcement structure according to claim 1 is characterized in that: The threshold support plate (1) is bent toward one side of the threshold connecting plate (2) to provide a side fixing edge (11), and the side fixing edge (11) is fixedly connected to the inner side surface of the threshold connecting plate (2).

3. The side impact energy absorption door sill reinforcement structure according to claim 1 is characterized in that: The threshold support plate (1) is bent toward one side of the threshold reinforcement plate (3) to provide a lower fixed edge (12), and the lower fixed edge (12) is fixedly connected to the upper end surface of the threshold reinforcement plate (3).

4. The side impact energy absorbing door sill reinforcement structure according to claim 1 is characterized in that: The edge of the threshold support plate (1) is provided with a first reinforcing flange (13).

5. The side impact energy absorbing door sill reinforcement structure according to claim 1 is characterized in that: The threshold support plate (1) is provided with a first reinforcing rib (14) of an X-shaped structure.

6. The side impact energy absorbing door sill reinforcement structure according to claim 1 is characterized in that: An upper fixed edge (21) is bent at the upper end of the door sill connecting plate (2), and the upper fixed edge (21) is fixedly connected to the inner top wall of the vehicle body door sill.

7. The side impact energy absorbing door sill reinforcement structure according to claim 1 is characterized in that: A plurality of groups of second reinforcing ribs (22) are arranged at intervals on the threshold connecting plate (2), and the second reinforcing ribs (22) are arranged in the up-down direction.

8. The side impact energy absorbing door sill reinforcement structure according to claim 1 is characterized in that: A second reinforcing flange (31) is provided on one side of the door sill reinforcement plate (3) facing the interior of the vehicle.

9. The side impact energy absorbing door sill reinforcement structure according to claim 1 is characterized in that: A plurality of groups of connecting bosses (32) are arranged at intervals on the door sill reinforcement plate (3), and connecting holes are arranged on the connecting bosses (32).

10. The side impact energy absorbing door sill reinforcement structure according to claim 9, characterized in that: The connecting boss (32) is connected to the buckle on the expansion rubber block, and the expansion rubber block is arranged in the gap between the door sill support plates (1).

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