Threshold beam structure and vehicle

Abstract

The utility model provides a doorsill beam structure and a vehicle, and belongs to the technical field of vehicle body structures, the doorsill beam structure comprises a doorsill beam body, a partition plate, a crumple plate and a mounting frame, the doorsill beam body is provided with a buffer channel formed in the front-back direction, and the upper portion of the inner side of the doorsill beam body is provided with a limiting part protruding inwards; the partition plates are arranged in the buffer channel and connected to the threshold beam body, and the partition plates divide the buffer channel into a plurality of mutually independent energy absorption chambers in the inside-outside direction; the crumple plates are arranged in the energy absorption chamber and divide the energy absorption chamber into a plurality of crumple areas in the vertical direction. The mounting frame is connected to the inner side of the doorsill beam body and located below the limiting part, and the mounting frame is used for being connected with a side wall inner plate. The utility model provides a doorsill beam structure and a vehicle and aims to solve the problem that in the prior art, when a vehicle is subjected to side collision, a doorsill beam is prone to being overturned upwards by traction force and intrudes into a cab, and safety of users in the vehicle is threatened.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle body structures, and more specifically, relates to a sill beam structure and a vehicle. Background Art

[0002] With the development of the automotive industry, the automotive crash safety performance has received wide attention. When suffering a side collision, especially a side pillar collision, the side pillars of some vehicle models may be difficult to effectively transmit force during a side impact. At this time, the sill beam will bear a great impact force and deform inward into the vehicle interior, invading the interior space of the vehicle. For new energy vehicles, the intrusion of the sill beam into the vehicle interior will cause the battery pack and internal modules to be squeezed, resulting in damage to the battery pack and even potentially causing the battery pack to catch fire and explode.

[0003] In addition, the sill beam is located at the vehicle floor and is at the bottom layer of the vehicle body. When a side collision occurs, usually positions such as the door are stressed, that is, the collision force generated during a vehicle side impact comes from above the sill beam. There is an inner panel of the side wall inside the sill beam. For the convenience of installation, there is usually a certain gap between the existing sill beam and the inner panel of the side wall. If the door position is subjected to an inward collision force and the door intrudes into the cockpit, it will inevitably cause the sill beam to deform. Since there is a gap between the sill beam and the inner panel of the side wall and there is no constraint on the sill beam in the in - out direction, after the vehicle body deforms inward, the sill beam will be pulled upward and flipped and invade the cockpit, threatening the safety of the passengers in the vehicle. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a sill beam structure and a vehicle, aiming to solve the problem in the prior art that when a vehicle has a side collision, the sill beam is easily pulled upward and flipped to invade the cockpit, threatening the safety of the users in the vehicle.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] In the first aspect, a sill beam structure is provided, including:

[0007] A sill beam body having a buffer channel opened along the front - rear direction, and an upper inner part of the sill beam body has a limiting part protruding inward;

[0008] A partition plate is arranged in the buffer channel and connected to the sill beam body. The partition plate divides the buffer channel into a plurality of independent energy - absorbing chambers along the in - out direction;

[0009] A crush plate is arranged in the energy - absorbing chamber. The crush plate divides the energy - absorbing chamber into a plurality of crush zones along the up - down direction; and

[0010] An installation bracket is connected to the inner side of the sill beam body and is located below the limiting part. The installation bracket is used for connecting with the inner panel of the side wall.

[0011] In combination with the first aspect, in a possible implementation, the cross-section of the sill beam body is polygonal, the mounting bracket includes a first mounting member and a second mounting member arranged at an angle, and the first mounting member and the second mounting member are respectively connected to two adjacent faces of the sill beam body.

[0012] In combination with the first aspect, in a possible implementation, the mounting bracket is provided with a first mounting hole in the inner and outer direction, and the first mounting hole is adapted to the second mounting hole of the inner panel of the side wall.

[0013] In combination with the first aspect, in a possible implementation, the sill beam body and the partition plate are both provided with weight reduction holes.

[0014] In combination with the first aspect, in a possible implementation, the sill beam structure further includes a reinforcing beam connected to the top of the sill beam body, and the reinforcing beam is located at the rear of the sill beam body.

[0015] In combination with the first aspect, in a possible implementation, the reinforcing beam includes:

[0016] A beam body, connected to the sill beam body, the beam body is provided with a cavity in the front-rear direction; and

[0017] A reinforcing plate, disposed in the cavity and connected to the beam body, the reinforcing plate separates the cavity into a plurality of reinforcing areas in the up-down direction.

[0018] In combination with the first aspect, in a possible implementation, the bottom surface of the sill beam body is flush with the front floor.

[0019] In combination with the first aspect, in a possible implementation, the sill beam structure further includes a reinforcing plate disposed in the crush zone, the inner side of the reinforcing plate is inclined downward, and the crush zone is divided into a plurality of triangular regions.

[0020] In combination with the first aspect, in a possible implementation, the crush plate is provided with a plurality of crush holes.

[0021] The beneficial effects of the sill beam structure provided by the present utility model are as follows: Compared with the prior art, the inner side of the sill beam body of the sill beam structure of the present utility model has a limiting portion protruding inwards. An installation bracket is provided below the limiting portion, and the installation bracket is connected to the inner side panel of the side wall. Therefore, there is no excessive gap between the lower part of the sill beam body and the inner side panel of the side wall. And the limiting portion is located above the installation bracket, so the gap between it and the inner side panel of the side wall is also small. When a side collision occurs to the vehicle, an inward collision force is applied above the sill beam structure. Due to the small gap between the inner side panel of the side wall and the limiting portion, there is no displacement space for the sill beam body, so it cannot flip upwards and intrude into the cockpit, effectively protecting the safety of the users in the cockpit. In addition, a partition plate and a crush plate are provided inside the sill beam body. On the one hand, it can improve the strength of the sill beam structure, absorb the energy generated by the collision, and prevent the sill beam from deforming inwards and squeezing the battery pack during a side collision; on the other hand, compared with the setting that the sill beam body is a solid component, it reduces the weight of the sill beam structure, which is beneficial to the lightweight of the whole vehicle. In the present utility model, the installation bracket and the limiting portion correspond up and down, reducing the gap between the upper part of the sill beam body and the inner side panel of the side wall, avoiding the sill beam structure from being flipped upwards by the external force above during a side collision, and protecting the safety of the users in the cockpit.

[0022] In a second aspect, an embodiment of the present utility model further provides a vehicle, including the sill beam structure described in any one of the above.

[0023] The beneficial effects of the vehicle provided by the present utility model are as follows: Compared with the prior art, the vehicle of the present utility model adopts the above-mentioned sill beam structure. The inner side of the sill beam body of the sill beam structure of the present utility model has a limiting portion protruding inwards. An installation bracket is provided below the limiting portion, and the installation bracket is connected to the inner side panel of the side wall. Therefore, there is no excessive gap between the lower part of the sill beam body and the inner side panel of the side wall. And the limiting portion is located above the installation bracket, so the gap between it and the inner side panel of the side wall is also small. When a side collision occurs to the vehicle, an inward collision force is applied above the sill beam structure. Due to the small gap between the inner side panel of the side wall and the limiting portion, there is no displacement space for the sill beam body, so it cannot flip upwards and intrude into the cockpit, effectively protecting the safety of the users in the cockpit. In addition, a partition plate and a crush plate are provided inside the sill beam body. On the one hand, it can improve the strength of the sill beam structure, absorb the energy generated by the collision, and prevent the sill beam from deforming inwards and squeezing the battery pack during a side collision; on the other hand, compared with the setting that the sill beam body is a solid component, it reduces the weight of the sill beam structure, which is beneficial to the lightweight of the whole vehicle. In the present utility model, the installation bracket and the limiting portion correspond up and down, reducing the gap between the upper part of the sill beam body and the inner side panel of the side wall, avoiding the sill beam structure from being flipped upwards by the external force above during a side collision, and protecting the safety of the users in the cockpit. Description of the Drawings

[0024] To more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 Structural schematic diagram of the sill beam structure provided by the embodiment of the present utility model;

[0026] Figure 2 For Figure 1 Partial enlarged view of part A in

[0027] Figure 3 Partial cross-sectional view of the sill beam structure and the vehicle body structure provided by the embodiment of the present utility model;

[0028] Figure 4 Structural schematic diagram of the mounting bracket adopted by the embodiment of the present utility model.

[0029] In the figure: 1, sill beam body; 101, limiting part; 102, weight reduction hole; 2, partition board; 201, crush zone; 3, crush plate; 301, crush hole; 4, mounting bracket; 401, first mounting member; 402, second mounting member; 403, first mounting hole; 5, reinforcing beam; 501, beam body; 502, reinforcing plate; 6, inner side panel of the side wall; 7, side wall reinforcing plate. Detailed implementation manners

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model more clear, the following further details the present utility model in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0031] In the claims, the description and the above-mentioned drawings of the present utility model, unless otherwise clearly defined, when using terms such as "first", "second" or "third", etc., they are used to distinguish different objects rather than to describe a specific order. In the claims, the description and the drawings of the present utility model, the orientation terms "upper" and "lower" are the same as the up and down directions of the vehicle body, the terms "left" and "right" are the same as the left and right directions of the vehicle body, the terms "front" and "rear" are the same as the front and rear directions of the vehicle body, and the term "inner side" refers to the side adjacent to the passenger compartment in the left and right directions of the vehicle body, and vice versa is the "outer side". Unless otherwise specified, the remaining orientation terms, such as "vertical", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation and position relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, so it should not be construed as limiting the specific protection scope of the present utility model. In the claims, the description and the above-mentioned drawings of the present utility model, unless otherwise clearly defined, when using the terms "fixed connection" or "fixedly connected", it should be understood in a broad sense, that is, any connection method without displacement relationship and relative rotation relationship between the two, that is, including non-detachable fixed connection, detachable fixed connection, being integrated as one body, and being fixed connected through other devices or elements. In the claims, the description and the above-mentioned drawings of the present utility model, when using the terms "comprising", "having" and their variants, are intended to mean "including but not limited to".

[0032] Please refer to Figures 1 to 4 simultaneously. Now, the sill beam structure and the vehicle provided by the present utility model will be described. The sill beam structure includes a sill beam body 1, a partition plate 2, a crush plate 3 and a mounting bracket 4. The sill beam body 1 has a buffer channel opened in the front-rear direction, and the upper part of the inner side of the sill beam body 1 has a limiting portion 101 protruding inwards; the partition plate 2 is arranged in the buffer channel and is connected to the sill beam body 1. The partition plate 2 divides the buffer channel into a plurality of independent energy absorption chambers in the inner-outer direction; the crush plate 3 is arranged in the energy absorption chamber, and the crush plate 3 divides the energy absorption chamber into a plurality of crush zones 201 in the up-down direction; the mounting bracket 4 is connected to the inner side of the sill beam body 1 and is located below the limiting portion 101. The mounting bracket 4 is used for connecting to the inner panel 6 of the side wall.

[0033] The sill beam structure provided by the present utility model, compared with the prior art, has an inwardly protruding limiting portion 101 on the inner side of the sill beam body 1 of the sill beam structure of the present utility model. An installation bracket 4 is provided below the limiting portion 101, and the installation bracket 4 is connected to the inner panel 6 of the side wall. Therefore, there is no excessive gap between the lower part of the sill beam body 1 and the inner panel 6 of the side wall. And the limiting portion 101 is located above the installation bracket 4, so the gap between it and the inner panel 6 of the side wall is also small. When a side collision occurs to the vehicle, an inward collision force is applied above the sill beam structure. Due to the small gap between the inner panel 6 of the side wall and the limiting portion 101, there is no displacement space for the sill beam body 1, so it cannot flip upward and intrude into the cockpit, effectively protecting the safety of the users in the cockpit. In addition, a partition plate 2 and a crush plate 3 are provided inside the sill beam body 1. On the one hand, it can improve the strength of the sill beam structure, absorb the energy generated by the collision, and prevent the sill beam from deforming inward and squeezing the battery pack during a side collision; on the other hand, compared with the setting that the sill beam body 1 is a solid component, it reduces the weight of the sill beam structure, which is beneficial to the lightweight of the whole vehicle. In the present utility model, the installation bracket 4 and the limiting portion 101 are vertically corresponding, reducing the gap between the upper part of the sill beam body 1 and the inner panel 6 of the side wall, avoiding the sill beam structure from being flipped upward by an external force above during a side collision, and protecting the safety of the users in the cockpit.

[0034] Optionally, the crush plate 3 is a corrugated plate body with upward and / or downward protrusions. Compared with the solution of a flat plate-shaped component, it not only increases the strength, but also can better resist the collision force and reduce the probability of the sill beam body 1 deforming inward.

[0035] Optionally, the cross-section of the sill beam body 1 is a closed structure connected end to end.

[0036] Optionally, the crush plates 3 in adjacent two energy absorption chambers are arranged in one-to-one correspondence.

[0037] Optionally, a plurality of crush plates 3 are sequentially arranged at intervals in the up-down direction in the energy absorption chamber.

[0038] Optionally, a plurality of partition plates 2 are sequentially arranged at intervals in the left-right direction in the buffer channel.

[0039] In some embodiments, please refer to Figures 1 to 3 , the cross-section of the sill beam body 1 is a polygon, and the installation bracket 4 includes a first installation member 401 and a second installation member 402 arranged at an angle. The first installation member 401 and the second installation member 402 are respectively connected to two adjacent faces of the sill beam body 1.

[0040] The first installation member 401 and the second installation member 402 are arranged at an angle and are respectively connected to two adjacent faces of the sill beam body 1, so as to limit the installation bracket 4 in two different directions and increase the stability of the installation bracket 4.

[0041] Optionally, the first mounting member 401 and the second mounting member 402 are respectively welded or bonded to the sill beam body 1, without opening holes in the sill beam body, ensuring the strength of the sill beam body 1.

[0042] Optionally, a plurality of mounting brackets 4 are provided at intervals in the front-rear direction. This can not only ensure the firm connection between the sill beam body 1 and the inner panel 6 of the side wall, but also reduce the structural weight of the sill beam compared to the scheme where the mounting bracket 4 completely covers the sill beam body 1 in the front-rear direction.

[0043] In some embodiments, refer to Figure 4 , the mounting bracket 4 is provided with a first mounting hole 403 in the inner-outer direction, and the first mounting hole 403 is adapted to the second mounting hole of the inner panel 6 of the side wall.

[0044] After the first mounting hole 403 corresponds to the second mounting hole, a connecting member is inserted into the first mounting hole 403 and the second mounting hole to realize the connection between the mounting bracket 4 and the inner panel 6 of the side wall.

[0045] Optionally, the first mounting hole 403 is a threaded hole and the connecting member is a threaded part. Or the connecting member is a clamping part, and the clamping part is inserted into the first mounting hole 403 and the second mounting hole to realize the clamping fit.

[0046] In some embodiments, refer to Figure 1 , both the sill beam body 1 and the partition plate 2 are provided with weight-reducing holes 102.

[0047] The weight-reducing holes 102 can reduce the weights of the sill beam body 1 and the partition plate 2, which is beneficial to realizing the lightweight of the whole vehicle.

[0048] In some embodiments, refer to Figure 1 , the sill beam structure further includes a reinforcing beam connected to the top of the sill beam body 1, and the reinforcing beam is located at the rear of the sill beam body 1.

[0049] The reinforcing beam is provided at the rear of the sill beam body 1 to increase the strength of the sill beam structure, ensure that the sill beam structure does not bend during a 25% small overlap collision of the vehicle body, and improve the safety performance of the vehicle.

[0050] It should be noted that the 25% small overlap collision means that the test vehicle hits a solid object with an overlap area equivalent to only 25% of the vehicle body width at a speed of 40 miles per hour (64 kilometers per hour). Since the collision area is greatly reduced, the pressure will increase a lot, so the requirements for the safety performance of the vehicle are also higher.

[0051] In some embodiments, refer to Figure 1, the reinforcing beam includes a beam body 501 and a reinforcing plate. The beam body 501 is connected to the sill beam body 1, and the beam body 501 is provided with a cavity in the front-rear direction; the reinforcing plate is arranged in the cavity and connected to the beam body 501, and the reinforcing plate separates the cavity into multiple reinforcing areas in the up-down direction.

[0052] In this embodiment, the beam body 501 adopts a cavity structure, which can effectively reduce the weight of the beam body 501. At the same time, a reinforcing plate is arranged in the cavity, improving the strength and anti-deformation ability of the reinforcing beam 5.

[0053] In some embodiments, please refer to Figure 1 , the bottom surface of the sill beam body 1 is flush with the front floor.

[0054] When a side collision occurs to the vehicle, the solution in this embodiment can transfer the side collision force from the sill beam to the front floor, and then transmit it to the seat crossbeam, which is beneficial to quickly spread the side collision force to the vehicle body and reduce the local stress concentration phenomenon.

[0055] Optionally, the sill beam body 1 is also flush with the sill beam connection plate.

[0056] In some embodiments, not shown in the figure, the sill beam structure further includes a reinforcing plate 502 arranged in the crush zone 201. The inner side of the reinforcing plate 502 is inclined downward, and the crush zone 201 is divided into multiple triangular regions.

[0057] Due to the stability of the triangle, when an external force is transmitted to the crush zone 201, the design of the reinforcing plate 502 can effectively resist the external force impact, reduce the deformation amount of the crush zone 201, reduce the probability of the inward deformation of the sill beam assembly, and protect the safety of passengers.

[0058] In some embodiments, please refer to Figures 1 to 2 , the crush plate 3 is provided with a plurality of crush holes 301

[0059] The design of the crush holes 301 can, on the one hand, reduce the weight of the crush plate 3, and on the other hand, provide a crush space when a side collision occurs to the vehicle, absorbing the energy generated by the collision.

[0060] Based on the same inventive concept, the present utility model further provides a vehicle. The vehicle includes the sill beam structure of any one of the above.

[0061] The vehicle provided by the present utility model adopts the above-mentioned sill beam structure. The inner side of the sill beam body 1 of the sill beam structure of the present utility model has a limiting part 101 protruding inwards. An installation bracket 4 is provided below the limiting part 101, and the installation bracket 4 is connected to the inner panel 6 of the side wall, so that there is no excessive gap between the lower part of the sill beam body 1 and the inner panel 6 of the side wall. And the limiting part 101 is located above the installation bracket 4, so the gap between it and the inner panel 6 of the side wall is also small. When a side collision occurs to the vehicle, an inward collision force is applied above the sill beam structure. Due to the small gap between the inner panel 6 of the side wall and the limiting part 101, there is no displacement space for the sill beam body 1, so it cannot flip upwards and intrude into the cockpit, effectively protecting the safety of the users in the cockpit. In addition, a partition plate 2 and a crush plate 3 are provided inside the sill beam body 1. On the one hand, it can improve the strength of the sill beam structure, absorb the energy generated by the collision, and avoid the sill beam deforming inwards and squeezing the battery pack during a side collision; on the other hand, compared with the setting that the sill beam body 1 is a solid part, it reduces the weight of the sill beam structure, which is beneficial to the lightweight of the whole vehicle. In the present utility model, the installation bracket 4 and the limiting part 101 are vertically corresponding, reducing the gap between the upper part of the sill beam body 1 and the inner panel 6 of the side wall, avoiding the sill beam structure being turned upwards by the external force above during a side collision, and protecting the safety of the users in the cockpit.

[0062] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. The threshold beam structure is characterized by: include: The threshold beam body (1) has a buffer channel opened in the front-rear direction, and the inner upper part of the threshold beam body (1) has a limiting portion (101) protruding inwards; A partition plate (2) is arranged in the buffer channel and connected to the threshold beam body (1), wherein the partition plate (2) divides the buffer channel into a plurality of mutually independent energy absorption chambers along the inner and outer directions; A crush plate (3) is arranged in the energy absorbing chamber, and the crush plate (3) divides the energy absorbing chamber into a plurality of crush zones (201) along a vertical direction; and The mounting frame (4) is connected to the inner side of the door sill beam body (1) and is located below the limiting portion (101). The mounting frame (4) is used to be connected to the side inner panel (6).

2. The threshold beam structure according to claim 1, characterized in that: The cross section of the threshold beam body (1) is polygonal, and the mounting frame (4) comprises a first mounting member (401) and a second mounting member (402) which are arranged at an angle, and the first mounting member (401) and the second mounting member (402) are respectively connected to two adjacent surfaces of the threshold beam body (1).

3. The threshold beam structure according to claim 1, characterized in that: The mounting frame (4) is provided with a first mounting hole (403) along the inner and outer directions, and the first mounting hole (403) is adapted to the second mounting hole of the side enclosure inner plate (6).

4. The threshold beam structure according to claim 1, characterized in that: The threshold beam body (1) and the partition plate (2) are both provided with weight-reducing holes (102).

5. The threshold beam structure according to claim 1, characterized in that: The threshold beam structure further comprises a reinforcing beam connected to the top of the threshold beam body (1), and the reinforcing beam is located at the rear of the threshold beam body (1).

6. The threshold beam structure according to claim 5, characterized in that: The reinforcing beam comprises: A beam body (501) is connected to the threshold beam body (1), and the beam body (501) is provided with a cavity along the front-rear direction; and A reinforcement plate is arranged in the cavity and connected to the beam body (501), and the reinforcement plate separates the cavity into a plurality of reinforcement areas along the up and down directions.

7. The threshold beam structure according to claim 1, characterized in that: The bottom surface of the door sill beam body (1) is flush with the front floor.

8. The door sill beam structure according to claim 1, characterized in that: The sill beam structure further comprises a reinforcing plate (502) arranged in the crush zone (201); the inner side of the reinforcing plate (502) is arranged to be inclined downward, and the crush zone (201) is divided into a plurality of triangular areas.

9. The door sill beam structure according to claim 1, characterized in that: The collapse plate (3) is provided with a plurality of collapse holes (301).

10. A vehicle, characterized in that A sill beam structure according to any one of claims 1 to 9.

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