Automobile threshold assembly and automobile

Abstract

The automobile doorsill assembly comprises a doorsill outer plate and a doorsill inner plate, a cavity is defined by the doorsill outer plate and the doorsill inner plate, a plurality of reinforcing supports are arranged in the cavity and correspondingly connected to the doorsill outer plate and the doorsill inner plate, and when acting force facing the doorsill inner plate is applied to the doorsill outer plate, the reinforcing supports are connected to the doorsill outer plate and the doorsill inner plate. The reinforcing bracket is deformed; according to the automobile doorsill assembly and the automobile, the reinforcing support is arranged in the doorsill, so that the problem that the crushing energy absorption effect is poor due to the fact that energy absorption is insufficient and a cavity formed by the doorsill inner plate and the doorsill outer plate turns over when side columns collide is solved, meanwhile, compared with a reinforcing structure in the prior art, the production cost is greatly reduced, and the service life of the automobile doorsill assembly is prolonged. And the requirement of light weight of the structure is met.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles, in particular to an automobile door sill assembly and a vehicle. Background Art

[0002] As a new energy vehicle, electric vehicles have the advantages of energy saving and environmental protection. Electric vehicles are becoming more and more a hot topic in the automotive field. The battery pack that does not get squeezed and deformed in the side pillar collision has also become a research topic for the passive safety of the vehicle body. An important factor affecting the battery pack that does not get squeezed and deformed in the side pillar collision is the ability of the vehicle door sill assembly to get squeezed and deformed in the side pillar collision. In the prior art, the door sill outer plate and the door sill inner plate jointly form a cavity, and extruded aluminum profiles and connectors are arranged in the cavity as a reinforcement structure. However, under the side pillar collision condition, the Y-direction cross-sectional dimension of the extruded aluminum profile is relatively large. In order to ensure that the extruded aluminum profile inside the door sill does not become unstable during the collision, it is necessary to increase the material thickness and Z-direction cross-sectional dimension of the extruded aluminum profile. This method often increases production costs and is not conducive to lightweight structure. At the same time, it is impossible to decompose the locally concentrated energy in the side pillar collision and cannot meet the safety protection requirements for the battery.

[0003] Therefore, there is an urgent need to develop an automobile door sill assembly that can prevent instability inside the door sill cavity under the condition of a side pillar collision, ensure that the door sill is fully crushed, and have a good energy absorption effect, thereby reducing the probability of the battery pack being squeezed and deformed under the condition of a side pillar collision, thereby improving the safety performance of the automobile while meeting the requirements of lightweight structure and having a low production cost. Summary of the invention

[0004] In view of this, the purpose of the utility model is to provide an automobile door sill assembly and a vehicle, in which, under the condition of a side pillar collision, no instability will occur in the door sill cavity, and the door sill can be fully crushed to absorb energy, thereby reducing the probability of extrusion and deformation of the battery pack under the condition of a side pillar collision, while having a low production cost and meeting the requirements of lightweight structure.

[0005] The automobile threshold assembly of the utility model comprises a threshold outer plate and a threshold inner plate, the threshold outer plate and the threshold inner plate are arranged to form a cavity, a plurality of reinforcing brackets are arranged in the cavity, the plurality of reinforcing brackets are correspondingly connected to the threshold outer plate and the threshold inner plate, when the threshold outer plate is subjected to a force acting toward the threshold inner plate, the reinforcing brackets are deformed; the reinforcing brackets are arranged in the cavity to form an effective support, thereby avoiding instability inside the cavity in a side column collision condition, resulting in insufficient crushing energy absorption and overturning, which affects the safety of the battery pack at the bottom.

[0006] Furthermore, it also includes a connecting piece, which is overlapped between the rocker outer panel and the rocker inner panel and divides the cavity into an outer chamber and an inner chamber, and the multiple reinforcing brackets are arranged in the outer chamber and the inner chamber and are spaced apart along the length direction of the outer chamber and the inner chamber; multiple reinforcing brackets are arranged, and the reinforcing brackets are arranged on the front and rear sides of the connecting piece and are spaced apart along the length direction, which can ensure that under the side column collision condition, the connecting piece and the reinforcing bracket are fully crushed to absorb energy, thereby improving the rocker structure's energy absorption of the collision load and avoiding the battery module from being squeezed and damaged in the collision.

[0007] Furthermore, the reinforcing bracket is a hollow groove-shaped structure with openings at both ends, and a plurality of convex ribs are provided on the upper surface and / or the lower surface of the hollow groove-shaped structure; the provision of a plurality of convex ribs can enhance the structural strength of the reinforcing bracket itself.

[0008] Furthermore, the connecting piece is an integrally formed plate-like structure, and the cross-section of the connecting piece is a multi-angle bending structure; the connecting piece is integrally formed, which is convenient for forming and processing, and at the same time, the connecting piece is a multi-angle bending structure, which is convenient for inducing deformation during crushing energy absorption, thereby improving the crushing energy absorption effect.

[0009] Furthermore, the end of the hollow groove-shaped structure away from the connecting piece is provided with a plurality of outward flange structures, and the plurality of outward flange structures are respectively connected to the outer panel or the inner panel of the threshold; providing the flange structure can enhance the crushing energy absorption effect of the reinforced bracket and the structural strength of the threshold.

[0010] Furthermore, at least two inwardly bent positioning ears are provided at one end of the hollow groove-shaped structure close to the connecting piece; the positioning ears are provided to facilitate the positioning and installation of the strengthening bracket.

[0011] Furthermore, a plurality of battery pack mounting plates are arranged at intervals along the length direction of the side of the rocker inner plate close to the rocker outer plate, and the battery pack mounting plates are located below the reinforcing bracket and connected to the flange structure of the reinforcing bracket; welding the battery pack mounting plates to the flange structure can improve the root strength thereof, thereby reducing the probability of deformation of the battery pack under collision conditions.

[0012] Furthermore, the length of the connecting member is smaller than the length of the cavity; the length of the connecting member is smaller than the length of the cavity, so that the connecting member can achieve a lightweight structure while satisfying the effect of crushing energy absorption.

[0013] Furthermore, the reinforcing bracket is provided with a plurality of weight-reducing holes; by providing a plurality of weight-reducing holes, a lightweight structure can be achieved.

[0014] The utility model discloses a vehicle, comprising the automobile door sill assembly.

[0015] Beneficial effects of the present invention: In an automobile door sill assembly and a vehicle of the present invention, a reinforcing bracket is arranged in a cavity formed by an outer panel and an inner panel of the door sill, so that the structural strength of the door sill itself can be higher. At the same time, the cavity formed by the outer panel and the inner panel of the door sill can deform and absorb energy under collision conditions to reduce the impact on the passenger compartment. The reinforcing bracket can improve the structural strength of the door sill, and the reinforcing brackets are respectively connected to the outer panel and the inner panel of the door sill, so that under the collision condition of the side pillar, they can effectively crush and absorb energy to avoid instability of the internal cavity of the door sill, causing the door sill to flip over and affect the battery pack at the bottom, reduce the possibility of deformation of the battery pack, and improve the safety performance of the car. At the same time, compared with the method of increasing the material thickness and the Z-direction section thickness of the reinforcing structure in the prior art, the production cost is greatly reduced and the requirement of lightweight structure is met. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure when the door sill inner panel, the reinforcement bracket and the connecting parts are matched;

[0019] Figure 3 It is a structural schematic diagram of the cooperation between the inner panel of the door sill and the reinforcement bracket;

[0020] Figure 4 It is a structural schematic diagram of the cooperation between the door sill outer panel and the reinforcement bracket;

[0021] Figure 5 A schematic diagram of the structure of the reinforcement bracket;

[0022] The above drawings contain the following reference numerals:

[0023] 1. Door sill inner panel; 2. Connectors; 3. Reinforcement bracket; 301. Flanged structure; 302. Positioning lug; 303. Raised rib; 304. Weight reduction hole; 4. Door sill outer panel; 5. Battery pack mounting plate. DETAILED DESCRIPTION

[0024] Figure 1 It is a structural schematic diagram of the utility model. Figure 2 This is a schematic diagram of the structure of the sill inner panel, reinforcement bracket and connecting parts. Figure 3 This is a schematic diagram of the structure when the door sill inner panel and the reinforcement bracket are matched. Figure 4 This is a schematic diagram of the structure when the door sill outer panel and the reinforcement bracket are matched. Figure 5 The structural diagram of the reinforcement bracket is shown in FIG. Figure 1-5As shown: a vehicle threshold assembly of the present embodiment comprises a threshold outer panel 4 and a threshold inner panel 1, the threshold outer panel 4 and the threshold inner panel 1 are surrounded to form a cavity, a plurality of reinforcing brackets 3 are arranged in the cavity, the plurality of reinforcing brackets 3 are correspondingly connected to the threshold outer panel 4 and the threshold inner panel 1, when the threshold outer panel 4 is subjected to a force acting toward the threshold inner panel 1, the reinforcing bracket 3 is deformed; in the present structure, the reinforcing bracket 3 is made of steel material, which can ensure that the reinforcing bracket 3 has sufficient strength and improve the structural stability inside the threshold cavity at the same time, the reinforcing bracket 3 is arranged in the cavity and correspondingly connected to the threshold outer panel 4 and the threshold inner panel 1, which can support the cavity, thereby improving the structural strength of the vehicle threshold, thereby improving the service life of the threshold, and at the same time, the threshold outer panel 4 and the threshold inner panel 1 form a cavity, when the vehicle threshold is hit, it can be deformed to absorb impact energy, and the reinforcing bracket 3 can also be crushed to absorb energy, further improving the effect of the threshold collision energy absorption, reducing the possibility of causing harm to the occupants in the vehicle, and improving the safety performance of the vehicle.

[0025] In the prior art, the threshold outer panel 4 and the threshold inner panel 1 jointly form a cavity, and extruded aluminum profiles and connectors are arranged in the cavity as a reinforcement structure. However, under the side pillar collision condition, the Y-direction cross-sectional dimension of the extruded aluminum profile is relatively large. In order to ensure that the extruded aluminum profile inside the threshold does not become unstable during the collision, it is necessary to increase the material thickness and Z-direction cross-sectional dimension of the extruded aluminum profile. This method often increases the production cost and is not conducive to lightweight structure. The automobile threshold assembly of the utility model can fully crush and absorb energy under the side pillar collision condition, while the overall structure has a low production cost. The overall structure can reduce the possibility of instability inside the threshold, improve the energy absorption effect, and reduce the probability of extrusion and deformation of the battery pack under the side pillar collision condition, thereby improving the safety performance of the automobile. At the same time, compared with the method of increasing the material thickness and Z-direction cross-sectional thickness of the reinforcement structure in the prior art, the production cost is greatly reduced and the requirements of lightweight structure are met.

[0026] In this embodiment, a connecting member 2 is also included, and the connecting member 2 is overlapped between the threshold outer panel 4 and the threshold inner panel 1 and divides the cavity into an outer chamber and an inner chamber. The multiple reinforcing brackets 3 are arranged in the outer chamber and the inner chamber, and are arranged at intervals along the length direction of the outer chamber and the inner chamber. In this structure, the connecting member 2 is overlapped between the threshold outer panel 4 and the threshold inner panel 1 in the vertical direction (the vertical direction is the up and down direction of the vehicle), that is, it is connected to the stop of the threshold outer panel 4 and the threshold inner panel 1, which can improve the structural stability inside the cavity. The number of reinforcing brackets 3 is preferably six, and the six reinforcing brackets 3 are arranged on both sides of the connecting member 2, with three on one side. By arranging the reinforcing brackets 3, the structural strength of the threshold can be further improved. At the same time, three reinforcing brackets 3 are a group, which are respectively arranged in the accommodating space formed by the connecting member 2, the threshold outer panel 4 and the threshold inner panel 1, so as to facilitate assembly and connection.

[0027] In this embodiment, the reinforcing bracket 3 is a hollow groove-like structure with openings at both ends, and a plurality of convex ribs 303 are arranged on the upper surface and / or the lower surface of the hollow groove-like structure; in this structure, the reinforcing bracket 3 is a hollow groove-like structure, which can also deform and absorb energy when subjected to external force. A plurality of convex ribs 303 are arranged on the upper surface and / or the lower surface of the hollow groove-like structure, which can enhance the structural strength of the reinforcing bracket 3. Preferably, the convex ribs 303 are strip-like convex ribs protruding outward from the surface of the hollow groove-like structure.

[0028] In this embodiment, the connecting member 2 is an integrally formed plate-like structure, and the cross-section of the connecting member 2 is a multi-angle bending structure; the connecting member 2 is an integrally formed structure, which is convenient for forming and processing, and the connecting member 2 is a multi-angle bending structure, which can induce deformation during crushing energy absorption to improve the energy absorption effect.

[0029] In this embodiment, the end of the hollow groove-like structure away from the connecting member 2 is provided with a plurality of outward flange structures 301, and the plurality of outward flange structures 301 are respectively connected to the threshold outer panel 4 or the threshold inner panel 1; the upper surface, the lower surface, the left surface and the right surface of the hollow groove-like structure are respectively bent outward (outward relative to the hollow groove-like structure) at one end away from the connecting member 2 to form the flange structure 301, which is convenient for welding the reinforcing bracket 3 to the threshold outer panel 4 or the threshold inner panel 1, and at the same time can improve the connection strength between the reinforcing bracket 3 and the threshold outer panel 4 or the threshold inner panel 1, and the flange structure 301 can increase the energy absorption and crushing effect.

[0030] In this embodiment, at least two inwardly bent positioning ears 302 are provided at one end of the hollow groove-like structure close to the connecting member 2; the left surface and the right surface of the hollow groove-like structure close to the connecting member 2 are respectively bent inward to form positioning ears 302, and positioning holes are provided on the positioning ears 302 to facilitate installation and positioning, while maintaining a certain distance from the connecting member 2 to facilitate the connection and positioning of the internal structure of the threshold.

[0031] In this embodiment, a plurality of battery pack mounting plates 5 are arranged at intervals along the length direction of the side of the rocker inner panel 1 close to the rocker outer panel 4, and the battery pack mounting plates 5 are located below the reinforcing bracket and connected to the flange structure 301 of the reinforcing bracket 3; the plurality of battery pack mounting plates 5 are respectively connected to the flange structures of the reinforcing bracket 3, and the reinforcing brackets 3 are grouped into three, and the battery pack mounting plates 5 are respectively connected to the flange structures 301 of the front and rear two reinforcing brackets 3 of the same group, which can increase the root support strength in the vertical direction under collision conditions, reduce the probability of deformation of the battery pack under collision conditions, and improve the safety performance of the vehicle.

[0032] In this embodiment, the length of the connecting member 2 is smaller than the length of the cavity; the length of the connecting member 2 (i.e., the length of the connecting member 2 in the left-right direction relative to the automobile) is smaller than the length of the cavity, which can achieve lightweight structure while satisfying the crushing energy absorption effect.

[0033] In this embodiment, the reinforcing bracket 3 is provided with a plurality of weight-reducing holes 304 ; by providing a plurality of weight-reducing holes 304 on the reinforcing bracket 3 , the structure can be lightweight while ensuring that the reinforcing bracket 3 has sufficient structural strength.

[0034] The utility model discloses a vehicle, comprising the automobile door sill assembly.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An automobile door sill assembly, characterized in that: It includes a threshold outer panel and a threshold inner panel, which are arranged to form a cavity. A plurality of reinforcing brackets are arranged in the cavity. The plurality of reinforcing brackets are correspondingly connected to the threshold outer panel and the threshold inner panel. When the threshold outer panel is subjected to a force acting toward the threshold inner panel, the reinforcing brackets are deformed.

2. The automobile door sill assembly according to claim 1, characterized in that: It also includes a connecting member, which is overlapped between the outer panel and the inner panel of the rocker and divides the cavity into an outer chamber and an inner chamber. The multiple reinforcing brackets are arranged in the outer chamber and the inner chamber and are spaced apart along the length direction of the outer chamber and the inner chamber.

3. The automobile door sill assembly according to claim 2, characterized in that: The reinforcing bracket is a hollow groove-shaped structure with openings at both ends, and a plurality of convex ribs are arranged on the upper surface and / or the lower surface of the hollow groove-shaped structure.

4. The automobile door sill assembly according to claim 2, characterized in that: The connecting piece is an integrally formed plate-shaped structure, and the cross section of the connecting piece is a multi-angle bending structure.

5. The automobile door sill assembly according to claim 3, characterized in that: The end of the hollow groove-shaped structure away from the connecting piece is provided with a plurality of outward flange structures, and the plurality of outward flange structures are respectively connected to the outer panel of the threshold or the inner panel of the threshold.

6. The automobile door sill assembly according to claim 5, characterized in that: The hollow groove-shaped structure is provided with at least two inwardly bent positioning ears at one end close to the connecting piece.

7. The automobile door sill assembly according to claim 5, characterized in that: A plurality of battery pack mounting plates are arranged at intervals along the length direction of the side of the rocker inner plate close to the rocker outer plate. The battery pack mounting plates are located below the reinforcing bracket and connected to the flange structure of the reinforcing bracket.

8. The automobile door sill assembly according to claim 2, characterized in that: The length of the connecting member is smaller than the length of the cavity.

9. The automobile door sill assembly according to claim 1, characterized in that: The reinforcing bracket is provided with a plurality of weight-reducing holes.

10. A vehicle, characterized in that: The invention comprises the automobile door sill assembly as described in any one of claims 1 to 9.

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