CN116061660A - Vehicle side collision bearing system and vehicle - Google Patents

Abstract

The invention provides a vehicle side collision bearing system and a vehicle, which are applied to a vehicle without a B column, and comprise a vehicle door inner plate, a bearing structure and a vehicle door connecting structure; the bearing structure comprises a bearing part and an energy absorption part, wherein the bearing part is arranged at the upper part of the vehicle door, and the energy absorption part is arranged at the lower part of the vehicle door; the door inner plate is provided with a bearing structure installation part which is positioned at the original B column position and is longitudinally arranged along the door body; the bearing structure mounting part is used for mounting the bearing structure; the door connecting structure is arranged at the longitudinal end of the bearing structure and is used for connecting the door and the vehicle body, and comprises a door upper locking device and/or a door lower locking device. According to the system and the vehicle, the longitudinal connection of the original B-pillar position bearing structure of the side wall of the vehicle body is realized by arranging the bearing structure and the locking device, the reliability of the side surface structure of the vehicle body of the B-pillar-free vehicle is improved, the effective bearing and load transmission of the load can be realized in the side collision working condition, and the safety performance of the vehicle is improved.

Description

Vehicle side collision bearing system and vehicle

Technical Field

The invention relates to the field of vehicle safety, in particular to a vehicle side collision bearing system and a vehicle.

Background

In the conventional vehicle design, the B column is used as a main bearing component of the side wall of the vehicle body, and the invasion amount of the B column under the side collision working condition can be reduced by reinforcing the structural design of the B column in the general optimal design. And for the vehicle body structural design without the B column, the structural design of the B column cannot be further enhanced due to the fact that the B column is canceled, and the side collision structural strength is further improved.

In severe side high speed collision conditions such as IIHS, E-NCAP, C-NCAP, etc., existing B-pillar-free vehicles have poor side collision performance due to the elimination of the main load bearing member B-pillar. The side bearing reinforcement design of most of the current B-pillar-free vehicles mainly comprises a vehicle door and a locking structure, wherein a vehicle door lock is mainly arranged at the lower part of the vehicle door, the upper part of the vehicle door or joints among the vehicle doors according to different vehicle door structures; in the test, the locking structure is possibly unhooked after being impacted, so that the vehicle door is sunk, and meanwhile, the problem that the safety of passengers is directly endangered due to excessive deformation of the vehicle door and the like exists, so that the problem of safety performance development is solved. Therefore, there is a need for a load bearing system suitable for a B-pillar-free vehicle to improve the reliability of the side wall structure to some extent.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a vehicle side collision bearing system and a vehicle, which realize effective bearing and load transmission of a load and side collision safety performance equivalent to that of a B column through the system design of a side structure of a vehicle body, thereby improving the reliability of a side wall structure to a certain extent.

In order to achieve the above effects, the specific technical scheme of the invention is as follows:

in one aspect, the present invention provides a vehicle side impact load bearing system comprising a door inner panel, a load bearing structure, and a door connecting structure;

the bearing structure comprises a bearing part and an energy absorption part, wherein the bearing part is arranged at the upper part of the vehicle door, and the energy absorption part is arranged at the lower part of the vehicle door;

the vehicle door inner plate is provided with a bearing structure installation part which is positioned at the original B column position and is longitudinally arranged along the vehicle door inner plate; the bearing structure mounting part is used for mounting the bearing structure;

the door connecting structure is arranged at the longitudinal end part of the bearing structure and is used for connecting the door and the vehicle body, and comprises a door upper locking device and/or a door lower locking device.

In one embodiment of the present invention, the carrier structure may include a first carrier and a second carrier, where the first carrier and the second carrier are stacked, and the carrier portion is located in a stacked area of the first carrier and the second carrier.

Preferably, the length of the second bearing member in the longitudinal direction of the vehicle body is greater than the length of the first bearing member, the second bearing member further comprises a non-laminated region which is not laminated with the first bearing member, and the energy absorbing portion is disposed in the non-laminated region.

In another embodiment of the present invention, the vehicle side impact load bearing system may further comprise an auxiliary reinforcing structure, wherein the auxiliary reinforcing structure is disposed on the first door, and the load bearing structure is disposed on the second door.

Further, the auxiliary reinforcing structure comprises a third bearing piece and a connecting piece, wherein the third bearing piece is fixedly connected to the first vehicle door or the second vehicle door through the connecting piece.

As a preferred embodiment, the door upper latch device includes a lock body assembly mounted between the door inner panel and the load bearing structure.

Further, a groove is formed in the inner plate of the vehicle door, a cavity is formed between the bearing structure and the groove, and the cavity is used for accommodating the lock body assembly.

Further, the lock body assembly includes a lock body and a lock body mount for the lock body; the lock body mount is connected with the lock body and the door inner panel.

As a preferable arrangement of this embodiment, the lock body mount includes a fixing portion and a lock body accommodating portion of the lock body, the lock body accommodating portion being for accommodating the lock body, the lock body mount and the door inner panel being connected to the fixing portion.

In another aspect, the present invention further provides a vehicle, including any one of the vehicle side impact load bearing systems described above, based on the vehicle side impact load bearing system described above.

By adopting the technical scheme, the vehicle side collision bearing system and the vehicle have the following beneficial effects:

according to the vehicle side collision bearing system, the bearing structure and the vehicle door connecting structure are used for realizing the bearing system of the similar B column on the longitudinal direction of the side wall of the vehicle body, and in the side collision working condition, effective bearing and load transmission of a load can be realized, so that the side collision performance of the vehicle is improved.

2. According to the vehicle provided by the invention, the side collision bearing system of the vehicle is arranged, so that the side collision performance of the vehicle is improved to a certain extent, and the safety performance of the vehicle is improved.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the following description will make a brief introduction to the drawings used in the description of the embodiments or the prior art. It is evident that the drawings in the following description are only some embodiments of the present invention and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.

FIG. 1 is a block diagram of a vehicle side impact load bearing system according to one embodiment of the invention;

FIG. 2 illustrates the mounting effect of a load bearing structure of a side impact load bearing system for a vehicle in accordance with one embodiment of the present invention;

FIG. 3 is a block diagram of a door inner panel according to an embodiment of the invention;

FIG. 4 is a split block diagram of a load bearing structure according to one embodiment of the present invention;

FIG. 5 is a block diagram of a vehicle side impact load bearing system according to another embodiment of the invention;

FIG. 6 is a split block diagram of an auxiliary reinforcing structure of the side impact load bearing system of FIG. 5;

FIG. 7 is a mounting effect diagram of a door upper latch in a side impact load bearing system of a vehicle according to one embodiment;

FIG. 8 is a view showing the installation of the door upper latch device of FIG. 7 inside the cabin;

FIG. 9 is a block diagram of the lock body assembly of FIG. 8;

fig. 10 is a structural view of a first lock body mounting portion on a door inner panel.

Fig. 11 is a diagram showing a locking effect of the door upper locking device according to an embodiment of the present invention.

In the figure: the door lock comprises a bearing structure 20, a door upper locking device 21, a door lower locking device 22, a bearing part 201, an energy absorbing part 202, a door inner plate 210, a bearing structure mounting part 211, a first lock body mounting part 212, a second lock body mounting part 213, a first bearing part 221, a second bearing part 222, a non-lamination area 223, a first door 1, a second door 2, an auxiliary reinforcing structure 3, a roof side rail 5, a third bearing part 31, a connecting part 32, a lock body assembly 230, a lock body 231, a lock body mounting part 232, a lock body accommodating part 233, a fixing part 234 and a groove 236.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, apparatus, article, or device that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or device.

Example 1

Referring to fig. 1 to 2, the vehicle side collision bearing system of the present embodiment includes: a door inner panel 210, a load-bearing structure 20, a door upper latch device 21, and a door lower latch device 22; the load bearing structure 20 includes a load bearing portion 201 and an energy absorbing portion 202, the load bearing portion 201 is disposed at an upper portion of the vehicle door, and the energy absorbing portion 202 is disposed at a lower portion of the vehicle door.

Specifically, a load-bearing structure mounting portion 211 is provided on the door inner panel 210, and the load-bearing structure mounting portion 211 is provided at the original B-pillar position and longitudinally along the door inner panel; the carrier 20 is mounted on the carrier mounting portion 211.

The B pillar of the traditional vehicle is a pillar arranged between the front door and the rear door and is longitudinally connected between the roof side rail 5 and the threshold beam along the vehicle body; when the vehicle rolls or overturns, the longitudinal connecting structure of the B column on the vehicle body can effectively prevent the cockpit from being extruded and deformed, and the passenger in the vehicle can be protected. The original B column is located on a vehicle door of a vehicle without the B column, and corresponds to a bearing area longitudinally distributed at a front vehicle door parting joint and a rear vehicle door parting joint. The application sets up bearing structure 20 and door connection structure in former B post region on the door, is connected door and automobile body structure through door connection structure, can form continuous bearing structure on the automobile body is vertical, forms class B post bearing system, can effectively avoid the cockpit to be out of shape by the extrusion, plays the guard action to the passenger in the car.

As a preferred implementation manner of the present embodiment, the door connecting structure includes a door upper locking device 21 and a door lower locking device 22, the door upper locking device 21 is disposed at an upper portion of the door inner panel 210, and the door lower locking device 22 is disposed at a lower portion of the door inner panel 210. In the door lock state, the door upper lock device 21 and the door lower lock device 22 connect the door and the vehicle body structure from the door upper portion and the door lower portion, respectively. In the door lock state, the carrier structure 20, the door upper lock device 21, and the door lower lock device 22 realize a B-pillar-like connection structure of the vehicle body structure and the door in the longitudinal direction, and can improve the side collision performance of the vehicle.

In another embodiment of the present application, a door connection structure may be provided that includes a door upper latch device 21. The upper door bearing structure 20 and the upper door locking device 21 realize the connection of the side body and door load structure of the vehicle body and the roof side beam of the vehicle body, thereby forming a continuous load transmission path between the side body and the top of the vehicle body and improving the side collision performance of the vehicle to a certain extent.

In another embodiment of the present application, a door attachment structure may be provided that includes a door lower latch 22 during side impact conditions. The upper door carrier 20 and the lower door latch 22 connect the side body door load structure to the rocker beam, and in side collision conditions, form a continuous load transmission path between the side body and the bottom of the vehicle, so as to improve the side collision performance of the vehicle to a certain extent.

In an embodiment of the present invention, the carrier structure 20 may include a first carrier 221 and a second carrier 222, and referring to fig. 3 to fig. 4, the first carrier 221 and the second carrier 222 are stacked, and the carrier 201 is located in a stacking area of the first carrier 221 and the second carrier 222.

In one embodiment of the present invention, the second carrier 222 may be further provided to have a length in the longitudinal direction of the vehicle body greater than that of the first carrier 221, the second carrier 222 further including a non-laminated region 223 not laminated with the first carrier 221, and the energy absorbing portion 202 being provided at the non-laminated region 223.

In order to better implement the bearing structure, a patch hot stamping process may be applied in practical application, and the laminated area of the first bearing member 221 and the second bearing member 222 is processed to form the bearing portion 201; processing the non-laminated region 223 by using a thermoforming soft region process to form an energy absorbing portion 202; or the steel material meeting the requirement of the energy absorbing part 202 is directly welded on the lower part of the bearing part 201 as the energy absorbing part 202 through a laser bias welding process on the lower part of the bearing part 201.

It should be understood by those skilled in the art that the second bearing member 222 is provided with a length greater than that of the first bearing member 221 in the longitudinal direction of the vehicle body in the present embodiment, so as to reserve enough deformation space for the bending energy absorption of the energy absorption portion 202, and the problem that the door space of the B-pillar-free vehicle is limited in practical application is solved to a certain extent by the space under the first bearing member 221. The materials of the first bearing member 221 and the second bearing member 222 can be adjusted according to the need by those skilled in the art, for example, high-strength bearable profiles such as extruded aluminum, rolled high-strength steel pipes and the like can be adopted.

In particular, in some vehicle designs, considering that the width of the sheet metal of the upper portion of a single door is limited by the exterior shape, the cross-sectional width of the upper structure is insufficient, the carrying capacity is poor, and the upper portion of the side impact condition may be broken, in which case the carrying structure may be distributed over two doors. Increasing the upper carrier width transfers more load. In another embodiment of the present invention, the vehicle carrying system may further include an auxiliary reinforcing structure 3, referring to fig. 5 to 6, the auxiliary reinforcing structure 3 is disposed on the first door 1, and the carrying structure 20 is disposed on the second door 2.

The present embodiment provides a specific arrangement of the auxiliary reinforcing structure 3, which includes a third bearing member 31 and a connecting member 32, where the third bearing member 31 is fixedly connected to the first door 1 via the connecting member 32.

It will be appreciated by those skilled in the art that in the example of fig. 4, the first door 1 is provided as a front door of the vehicle, the second door 2 is provided as a rear door of the vehicle, and accordingly, the third carrier 31 is provided on the front door of the vehicle via the connector 32, and the carrier structure 20 is provided on the rear door of the vehicle. As an alternative, it is also possible to provide the auxiliary reinforcing structure 3 in fixed connection with the rear door of the vehicle and, correspondingly, the carrier structure 20 in fixed connection with the front door of the vehicle. The door upper latch device 21 and the door lower latch device 22 serve as structures for connecting the door and the vehicle body, and can be adapted by those skilled in the art according to the specific behavior of the vehicle in a side collision. For example, the door upper lock device 21 may be provided to connect the vehicle front door or the vehicle rear door, and the door upper lock device may be provided to lock the vehicle front door and the vehicle rear door at the same time; this adaptation is equally applicable to the arrangement of the door lower latch 22.

Further, this embodiment provides an embodiment of the door upper locking device 21, referring to fig. 7 to 10, the door upper locking device 21 is disposed in the original B pillar area of the vehicle body for locking the rear door of the vehicle with the vehicle body structure, and includes a lock assembly 230, wherein the lock assembly 230 is installed between the door inner panel 210 and the carrying structure 20.

Specifically, the door upper latch device 21 is preferably disposed at a first lock body mounting portion 212 on an upper portion of the door inner panel 210, and the lock body assembly 230 is mounted at the first lock body mounting portion 212 for structural locking with a latch hook disposed on the roof side rail 5. The door lower latch device 21 is preferably disposed at a second lock body mounting portion 213 at a lower portion of the door inner panel 210, and the door lock is mounted at the second lock body mounting portion 213 for structural locking with a latch hook disposed on the rocker beam.

Referring to fig. 10, a groove 236 is provided on the first lock body mounting portion 212, the lock body assembly 230 is mounted in a cavity formed between the load bearing structure 20 and the groove 236, preferably, the groove 230 is provided as a concave structure of the door inner plate 210 toward the outer side of the door, and the lock body assembly 230 is mounted in the cavity by providing a groove structure matched with the lock body assembly 230, so that the door lock mounting problem of limited door space of the vehicle without the B-pillar can be solved to a certain extent by effectively combining the load bearing strength improvement structure and the door lock mounting structure.

The second lock body mounting portion 213 is provided with a mounting hole for the door lower lock device 22, the lower door lock structure is mounted on the door inner panel 210, and the rocker beam is provided with a lock hook structure. In some application scenarios, the reliability of the lower door lock connection can be further improved by additionally arranging a reinforcing structure on the lower door lock structure. Specifically, a limiting piece can be arranged on the threshold beam, the structure of the limiting piece can be a bolt jack matching structure, a pin body of the limiting piece is arranged on the threshold beam, and a pin hole of the limiting piece and a door lock structure are integrally arranged. Therefore, when the door is closed, the pin body is clamped with the pin hole, and when the door is locked, the lock tongue of the lower door lock is locked with the lock hook arranged on the threshold beam, so that the connection strength of the door lock can be enhanced.

As an alternative embodiment, referring to fig. 9 and 10, a lock body assembly 230 includes a lock body 231 and a lock body mount 232 of the lock body 231; the lock body mount 232 is connected to the lock body 231 and the door inner panel 210.

As a preferable arrangement, the lock body mounting member 232 includes a fixing portion 234 and a lock body accommodating portion 233 of the lock body 231, the lock body accommodating portion 233 is used for accommodating the lock body 231, a fixing portion 234 is provided at an edge of the accommodating portion 233, and the lock body mounting member 232 and the door inner panel 210 are connected to the fixing portion 234. The space requirement of the lock body on the vehicle door can be reduced through the arrangement, the contact surface is also arranged on the inner door plate, and the fixed installation is completed on the surface of the inner vehicle door plate 210 through the welding process, so that the requirement on the operation space is further reduced.

The vehicle side collision bearing system of the embodiment is tightly connected with the main structure of the vehicle body through the upper door lock and the lower door lock, and the upper part and the lower part of the vehicle body are stably connected in a side collision mode through the upper door lock and the lower door lock instead of the welding spots, riveting and other traditional vehicle body connection modes. The door lock structure plays a critical role in preventing intrusion of the side barrier in a side collision.

In view of the problem of unhooking the door lock, which may occur during a side collision, the present embodiment further provides a locking structure of the door upper locking device 21. When the automobile door is locked, the lock body assembly 230 is locked with the lock hook assembly 240, wherein the lock hook assembly 240 comprises a U-shaped lock ring and a lock hook reinforcing member 250, the U-shaped lock ring is fixedly connected to the roof side rail inner plate, the lock hook reinforcing member 250 is matched with the lock hook body, and the lock hook reinforcing member comprises a first connecting part fixedly connected with the U-shaped lock ring and a second connecting part used for reinforcing the connection strength of the lock hook assembly 240 and the automobile door inner plate. As a preferred embodiment, the latch hook reinforcement 250 may be provided as an integrally formed part in a practical design.

According to the vehicle side collision bearing system, the connection structure of the vehicle body structure and the vehicle door similar to the B column in the longitudinal direction is realized through the bearing structure and the locking device, the bearing structure and the vehicle door locking device are utilized to realize effective bearing of load and load transmission, and the vehicle side collision performance of the system is improved to a certain extent in the side collision working condition.

Example 2

The embodiment further provides a vehicle on the basis of embodiment 1, and the vehicle of the embodiment is provided with the vehicle side collision bearing system, so that the vehicle side door bearing structure is optimized, and the safety performance of the vehicle is improved.

The invention further provides a B-pillar-free vehicle comprising a front vehicle door and a rear vehicle door, wherein the front vehicle door and the rear vehicle door are arranged to form a boundary line at the original B-pillar position; specifically, the auxiliary reinforcing structure 3 and the bearing structure 20 are respectively disposed on two sides of the dividing line, specifically, the auxiliary reinforcing structure 3 may be disposed on a front door of the vehicle, and the bearing structure 20 may be disposed on a rear door of the vehicle. As an alternative, it is also possible to provide the auxiliary reinforcing structure 3 in fixed connection with the rear door of the vehicle and, correspondingly, the carrier structure 20 in fixed connection with the front door of the vehicle.

The door upper lock device 21 and the door lower lock device 22 may be provided to the front door or the rear door of the vehicle as necessary, and in the door lock state, the door upper lock device 21 and the door lower lock device 22 connect the door and the vehicle body structure from the door upper portion and the door lower portion, respectively.

It should be noted that the vehicle of the present embodiment may be a door structure design of a side-by-side door or a sliding door, and that the adaptation of those skilled in the art without the inventive effort is included in the scope of the present application.

The foregoing description of the preferred embodiment of the present invention is not intended to be limiting, and it will be apparent to those skilled in the art that the present invention is not limited to the details of the foregoing exemplary embodiment, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (10)

1. A vehicle side impact load bearing system characterized by comprising a door inner panel (210), a load bearing structure (20) and a door connecting structure;

the bearing structure (20) comprises a bearing part (201) and an energy absorption part (202), wherein the bearing part (201) is arranged at the upper part of the vehicle door, and the energy absorption part (202) is arranged at the lower part of the vehicle door;

the vehicle door inner plate (210) is provided with a bearing structure mounting part (211), and the bearing structure mounting part (211) is positioned at the original B column position and is longitudinally arranged along the vehicle door inner plate (210); -the load-bearing structure mounting portion (211) for mounting the load-bearing structure (20);

the door connection is arranged at a longitudinal end of the carrier structure (20) for connecting the door to the vehicle body, comprising a door upper locking device (21) and/or a door lower locking device (22).

2. The vehicle side impact load bearing system according to claim 1, wherein the load bearing structure (20) comprises a first load bearing member (221) and a second load bearing member (222), the first load bearing member (221) and the second load bearing member (222) being arranged in a stack, the load bearing portion (201) being located in a stack area of the first load bearing member (221) and the second load bearing member (222).

3. The vehicle side impact load bearing system according to claim 2, wherein the second load bearing member (222) has a length in a vehicle body longitudinal direction that is longer than that of the first load bearing member (221), the second load bearing member (222) further includes a non-laminated region (223) that is not laminated with the first load bearing member (221), and the energy absorbing portion is provided to the non-laminated region (223).

4. The vehicle side impact load bearing system according to claim 1, further comprising an auxiliary reinforcement structure (3), the auxiliary reinforcement structure (3) being arranged on the first door (1) and the load bearing structure (20) being arranged on the second door (2).

5. The vehicle side impact load bearing system according to claim 4, wherein the auxiliary reinforcement structure (3) comprises a third load bearing member (31) and a connecting member (32), the third load bearing member (31) being fixedly connected to the first door (1) or the second door (2) via the connecting member (32).

6. The vehicle side impact load bearing system according to claim 1, wherein the door upper latch device (21) includes a lock body assembly (230), the lock body assembly (230) being mounted between the door inner panel (210) and the load bearing structure (20).

7. The vehicle side impact load bearing system according to claim 6, wherein a recess (236) is provided in the door inner panel (210), and a cavity is formed between the load bearing structure (20) and the recess (236) for receiving the lock assembly (230).

8. The vehicle side impact load bearing system according to claim 6, wherein the lock body assembly (230) comprises a lock body (231) and a lock body mount (232) of the lock body (231); the lock body mount (232) is connected to the lock body (231) and the door inner panel (210), respectively.

9. The vehicle side impact load bearing system according to claim 8, wherein the lock body mount (232) includes a fixing portion (234) and a lock body accommodating portion (233) of the lock body (231), the lock body accommodating portion (233) being for accommodating the lock body (231), the fixing portion (234) being for connecting the lock body mount (232) and the door inner panel (210).

10. A vehicle characterized by comprising a vehicle side impact load carrying system according to any one of claims 1 to 9.

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