B-pillar-free vehicle body structure and vehicle

Abstract

The utility model relates to a kind of B-column-free vehicle body structure, including vehicle body and double-leaf car door, double-leaf car door includes front door and rear door;Front door includes first door outer plate, first door inner plate and first reinforcing part, first door outer plate and first door inner plate are connected and form first door cavity;First reinforcing part is set in first door cavity, and first reinforcing cavity is formed from the top of the rear end of front door and extends to the bottom of the rear end of front door;Rear door includes second door outer plate, second door inner plate and second reinforcing part, second door outer plate and second door inner plate are connected and form second door cavity;Second reinforcing part is set in second door cavity, and second reinforcing cavity is formed from the top of the front end of rear door and extends to the bottom of the front end of rear door.The utility model also proposes a kind of vehicle.The utility model can improve the rigidity and sealing performance of B-column-free vehicle body structure, help to improve the side impact performance of vehicle.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, specifically to a B-pillar-less body structure and vehicle. Background Technology

[0002] Some vehicles adopt a pillarless design, which creates more spacious entry and exit, improving vehicle convenience and comfort. However, eliminating the B-pillar may lead to the following technical issues: Insufficient body rigidity: When a side collision occurs, the lack of B-pillar support makes the doors prone to deformation and intrusion into the passenger compartment, threatening the safety of the occupants; the lack of B-pillar also reduces the overall torsional rigidity of the body, adversely affecting the vehicle's handling and durability.

[0003] Poor sealing performance: Due to the lack of a sealed transition through the B-pillar, rainwater leakage, excessive wind noise, and poor sound insulation are likely to occur in the gaps between the doors and the body, and between the front and rear doors.

[0004] Low door positioning accuracy: The front and rear doors usually open in opposite directions, and there is no B-pillar limiter at the joint of the front and rear doors. This makes it easy for uneven gaps to occur due to assembly errors or vibrations, which further aggravates the problems of insufficient body rigidity and poor sealing performance. Utility Model Content

[0005] The purpose of this invention is to provide a pillarless body structure and vehicle to alleviate or eliminate at least one of the aforementioned technical problems.

[0006] This utility model discloses a pillarless vehicle body structure, including a vehicle body and a double-door configuration disposed on the side of the vehicle body. The double-door configuration includes a front door and a rear door, and is configured to open or close via relative movement between the front door and the rear door. The front door includes a first outer door panel, a first inner door panel, and a first reinforcing member. The first outer door panel and the first inner door panel are fixedly connected and form a first door cavity. The first reinforcing member is disposed within the first door cavity, forming a first reinforcing cavity extending downwards from the top of the rear end of the front door to the bottom of the rear end of the front door. The rear door includes a second door outer panel, a second door inner panel, and a second reinforcing member. The second door outer panel and the second door inner panel are fixedly connected and form a second door cavity. The second reinforcing member is disposed in the second door cavity, forming a second reinforcing cavity that extends downward from the top of the front end of the rear door to the bottom of the front end of the rear door. When the double-leaf door is closed, the upper ends of the first reinforcing cavity and the upper ends of the second reinforcing cavity are located on the outer side of the side wall upper beam of the vehicle body, and the lower ends of the first reinforcing cavity and the lower ends of the second reinforcing cavity are located on the outer side of the sill beam of the vehicle body.

[0007] Optionally, the first reinforcing cavity and the second reinforcing cavity are closed cavities.

[0008] Optionally, the first reinforcing member is fixedly connected to the inner panel of the first door, and the first reinforcing member and the inner panel of the first door form the first reinforcing cavity; the second reinforcing member is fixedly connected to the inner panel of the second door, and the second reinforcing member and the inner panel of the second door form the second reinforcing cavity.

[0009] Optionally, the first reinforcing member is fixedly connected to the first door outer panel, and the first reinforcing member, the first door outer panel, and the first door inner panel form a third reinforcing cavity. The third reinforcing cavity extends downward from the top of the rear end of the front door to the bottom of the rear end of the front door, and the third reinforcing cavity is located behind the first reinforcing cavity. The second reinforcing member is fixedly connected to the second door outer panel, and the second reinforcing member, the second door outer panel, and the first door inner panel form a fourth reinforcing cavity. The fourth reinforcing cavity extends downward from the top of the front end of the rear door to the bottom of the front end of the rear door, and the fourth reinforcing cavity is located in front of the second reinforcing cavity.

[0010] Optionally, it also includes a first door lock disposed between the top of the rear end of the front door and the upper side beam of the side panel, the first door lock having a locked state and an unlocked state; it also includes a second door lock disposed between the top of the front end of the rear door and the upper side beam of the side panel, the second door lock having a locked state and an unlocked state.

[0011] Optionally, it also includes a third door lock disposed between the bottom of the rear end of the front door and the sill beam, the third door lock having a locked state and an unlocked state; and a fourth door lock disposed between the bottom of the front end of the rear door and the sill beam, the fourth door lock having a locked state and an unlocked state.

[0012] Optionally, multiple sealing strips are provided between the rear end of the front door and the front end of the rear door, and the multiple sealing strips are arranged sequentially at intervals from the outside of the vehicle to the inside of the vehicle.

[0013] Optionally, at least one of the sealing strips may include a rubber sealing layer, an elastic buffer layer, and a sound-absorbing material layer arranged sequentially from the outside to the inside.

[0014] Optionally, the plurality of sealing strips include a first sealing strip and a second sealing strip. The first sealing strip is installed on the rear end of the front door near the outer side of the vehicle. The rear end of the front door near the outer side of the vehicle has a first edge extending backward, which covers the outer side of the first sealing strip. The rear end of the rear door near the inner side of the vehicle has a second edge extending forward, and the second sealing strip is installed on the second edge.

[0015] This utility model also proposes a vehicle including the B-pillarless body structure described in any of the above claims.

[0016] This invention features reinforced cavity structures at the rear end of the front door and the front end of the rear door. These reinforced cavity structures create a force transmission path between the side panel upper crossbeam and the sill beam, which helps improve the rigidity of the pillarless body structure and enhances the vehicle's side impact performance. A sealing structure is installed between the rear end of the front door and the front end of the rear door to improve the sealing performance of the pillarless body structure. Properly placed door locks between the front door and the body body, and between the rear door and the body body, further ensure the rigidity and sealing performance of the pillarless body structure. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the B-pillarless body structure described in some embodiments when the door is open; Figure 2 This is a schematic diagram of the B-pillarless body structure described in some embodiments when the doors are closed; Figure 3 for Figure 2 AA section view in the middle; Figure 4 This is a schematic diagram of the force transmission path of the B-pillarless body structure described in some embodiments; Figure 5 This is a schematic diagram of the sealing structure of the B-pillarless body structure described in some embodiments; Figure 6 for Figure 5 A magnified view of a portion of the image.

[0018] In the diagram, 1—upper side panel beam, 2—sill beam, 3—front door, 4—rear door, 5—first sealing strip, 6—second sealing strip. 101—Door Lock Installation Department 301—Outer panel of the first door; 302—Inner panel of the first door; 303—First reinforcing member; 304—First edge; 305—First reinforcing cavity; 306—Third reinforcing cavity. 401—Second door outer panel, 402—Second door inner panel, 403—Second reinforcing member, 404—Second edge, 405—Second reinforcing cavity, 406—Fourth reinforcing cavity; 601—Connecting part, 602—Sealing part, 6021—Rubber sealing layer, 6022—Elastic buffer layer, 6023—Sound absorbing material layer. Detailed Implementation

[0019] The embodiments of this utility model will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be understood that the preferred embodiments are only for illustrating this utility model and not for limiting the scope of protection of this utility model.

[0020] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The illustrations only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0021] like Figures 1 to 3 The illustrated pillarless body structure includes a body body and suicide doors disposed on the side of the body body. The suicide doors include a front door 3 and a rear door 4, configured to open or close via relative movement between the front door 3 and the rear door 4. The front door 3 includes a first outer door panel 301, a first inner door panel 302, and a first reinforcing member 303. The first outer door panel 301 and the first inner door panel 302 are fixedly connected and form a first door cavity. The first reinforcing member 303 is disposed within the first door cavity, forming a first reinforcing cavity 305 extending downward from the top of the rear end of the front door 3 to the bottom of the rear end of the front door 3. The rear door 4 includes... The second door outer panel 401, the second door inner panel 402, and the second reinforcing member 403 are fixedly connected to form a second door cavity. The second reinforcing member 403 is disposed in the second door cavity, forming a second reinforcing cavity 405 extending downward from the top of the front end of the rear door 4 to the bottom of the front end of the rear door 4. When the double doors are closed, the upper ends of the first reinforcing cavity 305 and the upper ends of the second reinforcing cavity 405 are located on the outer side of the side upper beam 1 of the vehicle body, and the lower ends of the first reinforcing cavity 305 and the lower ends of the second reinforcing cavity 405 are located on the outer side of the sill beam 2 of the vehicle body.

[0022] Using the above technical solution, a first reinforcing cavity 305 is formed at the rear end of the front door 3, which enhances the deformation resistance of the rear end of the front door 3; a second reinforcing cavity 405 is formed at the front end of the rear door 4, which enhances the deformation resistance of the rear end of the front door 3. Both the first reinforcing cavity 305 and the second reinforcing cavity 405 extend vertically, from the outer side of the side panel upper beam 1 to the outer side of the sill beam 2, serving as the main load-bearing structure for the double-door design. Figure 4 As shown, in the event of a side collision, the side impact force can be transmitted to the upper side beam 1, front pillar, and sill beam 2 through the first reinforcing cavity 305 and the second reinforcing cavity 405, reducing the deformation of the front door 3 and rear door 4. By setting the first reinforcing cavity 305 and the second reinforcing cavity 405, the rigidity and other structural performance of the B-pillarless body structure can be improved, thus enhancing the vehicle's side impact performance.

[0023] In practical implementation, the front door 3 can be connected to the vehicle body using a door hinge or a sliding mechanism; the rear door 4 can also be connected to the vehicle body using a door hinge or a sliding mechanism. In practical implementation, the outer panel 301 of the first door and the outer panel 401 of the second door can be made of high-strength steel.

[0024] In some embodiments, the first reinforcing cavity 305 and the second reinforcing cavity 405 are closed cavities. By adopting the above technical solution, the closed cavities have better resistance to deformation, which helps to further improve the rigidity of the pillarless body structure and further improve the vehicle's side-impact performance.

[0025] In some embodiments, the first reinforcing member 303 is fixedly connected to the inner panel 302 of the first door, and the first reinforcing member 303 and the inner panel 302 of the first door form a first reinforcing cavity 305. Using the above technical solution, the distance between the first reinforcing cavity 305 and the upper side beam 1, and the distance between the first reinforcing cavity 305 and the sill beam 2, are smaller, which can better fulfill the functions of load bearing and force transmission. In specific implementations, the first reinforcing member 303 and the inner panel 302 of the first door can be fixedly connected by welding, such as spot welding.

[0026] In some embodiments, the second reinforcing member 403 is fixedly connected to the inner panel 402 of the second door, and the second reinforcing member 403 and the inner panel 402 of the second door form a second reinforcing cavity 405. Using the above technical solution, the distance between the second reinforcing cavity 405 and the upper side beam 1, and the distance between the second reinforcing cavity 405 and the sill beam 2, are smaller, which can better fulfill the functions of load bearing and force transmission. In specific implementations, the second reinforcing member 403 and the inner panel 402 of the second door can be fixedly connected by welding, such as spot welding.

[0027] In some embodiments, the first reinforcing member 303 is fixedly connected to the outer panel 301 of the first door, and the first reinforcing member 303, the outer panel 301, and the inner panel 302 of the first door form a third reinforcing cavity 306. The third reinforcing cavity 306 extends downward from the top of the rear end of the front door 3 to the bottom of the rear end of the front door 3, and is located behind the first reinforcing cavity 305. By adopting the above technical solution, a parallel and continuous cavity structure is formed at the rear end of the front door 3, which can further improve the deformation resistance of the rear end of the front door 3, so that the rear end of the front door 3 can better play the role of bearing and transmitting force.

[0028] In some embodiments, the second reinforcing member 403 is fixedly connected to the outer panel 401 of the second door, and the second reinforcing member 403, the outer panel 401 of the second door, and the inner panel 302 of the first door form a fourth reinforcing cavity 406. The fourth reinforcing cavity 406 extends downward from the top of the front end of the rear door 4 to the bottom of the front end of the rear door 4, and is located in front of the second reinforcing cavity 405. By adopting the above technical solution, a parallel and continuous cavity structure is formed at the rear end of the front door 3, which can further improve the deformation resistance of the rear end of the front door 3, so that the rear end of the front door 3 can better play the role of bearing and transmitting force.

[0029] In practical implementation, when the double doors are closed, the front door 3 and the rear door 4 are connected, and the first reinforcing cavity 305, the third reinforcing cavity 306, the second reinforcing cavity 405, and the fourth reinforcing cavity 406 form a continuous cavity structure, which can replace the longitudinal support function of the B-pillar.

[0030] In some embodiments, the pillarless body structure also includes a first door lock disposed between the top of the rear end of the front door 3 and the upper side beam 1 of the side wall. The first door lock has a locked state and an unlocked state. The first door lock can form a connection between the rear end of the front door 3 and the upper side beam 1 of the side wall, which helps to ensure the structural performance and sealing performance of the pillarless body structure.

[0031] In some embodiments, the pillarless body structure also includes a second door lock disposed between the top front end of the rear door 4 and the upper side beam 1 of the side wall. The second door lock has a locked state and an unlocked state. The provision of the second door lock enables a connection between the front end of the rear door 4 and the upper side beam 1 of the side wall, which helps to ensure the structural and sealing performance of the pillarless body structure.

[0032] In some embodiments, the pillarless body structure also includes a third door lock disposed between the bottom of the rear end of the front door 3 and the sill beam 2. The third door lock has a locked state and an unlocked state. The third door lock creates a connection between the rear end of the front door 3 and the sill beam 2, which helps ensure the structural and sealing performance of the pillarless body structure.

[0033] In some embodiments, the pillarless body structure also includes a fourth door lock disposed between the bottom front end of the rear door 4 and the sill beam 2. The fourth door lock has a locked state and an unlocked state. The fourth door lock creates a connection between the front end of the rear door 4 and the sill beam 2, which helps ensure the structural and sealing performance of the pillarless body structure.

[0034] In practice, by setting the first door lock, the second door lock, the third door lock and the fourth door lock, the rear end of the front door 3 and the front end of the rear door 4 are respectively connected between the side upper beam 1 and the sill beam 2, forming a longitudinal force transmission path of roof-cavity structure-sill beam 2, which can better replace the load-bearing function of the B pillar.

[0035] As a preferred example, to mitigate or eliminate the sealing degradation caused by installing the door lock at the upper side beam 1 of the side panel, a third sealing strip and a fourth sealing strip are installed on the outer surface of the upper side beam 1. Both the third and fourth sealing strips extend along the length of the upper side beam 1. The third sealing strip is located above the door lock mounting portion 101 on the upper side beam 1 for mounting the door lock body, and the fourth sealing strip is located below the door lock mounting portion 101 on the upper side beam 1. When the double doors are closed, the front door 3 contacts the front sections of both the third and fourth sealing strips to form a seal; the rear door 4 contacts the rear sections of both the third and fourth sealing strips to form a seal. The third and fourth sealing strips not only ensure the sealing performance at the door lock mounting portion 101 but also contribute to improving the sealing performance of the double doors.

[0036] In some embodiments, multiple sealing strips are provided between the rear end of the front door 3 and the front end of the rear door 4, with the sealing strips arranged alternately from the outside of the vehicle towards the inside. Because there is no B-pillar, sealing strips are needed to seal the front door 3 and the rear door 4. The use of multiple sealing strips to form a multi-layer seal can better ensure the sealing performance of the B-pillarless body structure.

[0037] In some embodiments, such as Figure 6 As shown, the sealing portion 602 of at least one sealing strip includes a rubber sealing layer 6021, an elastic buffer layer 6022, and a sound-absorbing material layer 6023 arranged sequentially from the outside to the inside. The rubber sealing layer 6021 prevents rainwater and dust from entering, the elastic buffer layer 6022 absorbs the impact of closing the door and assists in sealing, and the sound-absorbing material layer 6023 reduces wind noise. In specific implementations, the rubber sealing layer 6021 can be made of rubber, the elastic buffer layer 6022 can be made of foam material, and the sound-absorbing material layer 6023 can be made of sound-absorbing material, such as sound-absorbing cotton strips.

[0038] In some embodiments, such as Figure 5 As shown, the multiple sealing strips include a first sealing strip 5 and a second sealing strip 6. The first sealing strip 5 is installed on the rear end of the front door 3 near the outer side of the vehicle. The rear end of the front door 3 near the outer side of the vehicle has a first edge 304 extending rearward, which covers the outer side of the first sealing strip 5. The rear end of the rear door 4 near the inner side of the vehicle has a second edge 404 extending forward, and the second sealing strip 6 is installed on the second edge 404. The first sealing strip 5 and the second sealing strip 6 can provide a double sealing function.

[0039] In specific implementation, such as Figure 6 As shown, the second sealing strip 6 includes a connecting part 601 connected to the second edge 404 and a sealing part 602 that elastically contacts the rear end of the front door 3. The sealing part 602 includes a rubber sealing layer 6021, an elastic buffer layer 6022 and a sound-absorbing material layer 6023 arranged sequentially from the outside to the inside.

[0040] This utility model also proposes a vehicle including the B-pillarless body structure described in any of the above claims.

[0041] Vehicles can be, but are not limited to, pure electric vehicles (PEV / BEV), hybrid electric vehicles (HEV), range-extended electric vehicles (REEV), plug-in hybrid electric vehicles (PHEV), new energy vehicles, and gasoline vehicles.

[0042] The above embodiments are merely preferred embodiments provided to fully illustrate the present utility model, and the protection scope of the present utility model is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present utility model are all within the protection scope of the present utility model. In the description of this specification, the reference to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., means that a specific feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples. Furthermore, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0043] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "outside the vehicle," and "inside the vehicle," etc., indicate the location based on the appendix. Figure 1-3 The coordinate system in the diagram represents the orientation only for the convenience of describing the present invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

Claims

1. A pillarless vehicle body structure, characterized in that, The vehicle includes a vehicle body and a double-leaf door disposed on the side of the vehicle body. The double-leaf door includes a front door (3) and a rear door (4). The double-leaf door is configured to open or close by relative movement between the front door (3) and the rear door (4). The front door (3) includes a first door outer panel (301), a first door inner panel (302), and a first reinforcing member (303). The first door outer panel (301) and the first door inner panel (302) are fixedly connected and form a first door cavity. The first reinforcing member (303) is disposed in the first door cavity, forming a first reinforcing cavity (305) extending downward from the top of the rear end of the front door (3) to the bottom of the rear end of the front door (3). The rear door (4) includes a second door outer panel (301) and a rear door inner panel (302). 401), second door inner panel (402) and second reinforcing member (403), the second door outer panel (401) and the second door inner panel (402) are fixedly connected and form a second door cavity; the second reinforcing member (403) is disposed in the second door cavity to form a second reinforcing cavity (405) extending downward from the top of the front end of the rear door (4) to the bottom of the front end of the rear door (4); when the double doors are closed, the upper end of the first reinforcing cavity (305) and the upper end of the second reinforcing cavity (405) are located on the outside of the side wall upper beam (1) of the body body, and the lower end of the first reinforcing cavity (305) and the lower end of the second reinforcing cavity (405) are located on the outside of the sill beam (2) of the body body.

2. The pillarless body structure according to claim 1, characterized in that, The first reinforcing cavity (305) and the second reinforcing cavity (405) are closed cavities.

3. The pillarless body structure according to claim 1, characterized in that, The first reinforcing member (303) is fixedly connected to the first door inner panel (302), and the first reinforcing member (303) and the first door inner panel (302) form the first reinforcing cavity (305); the second reinforcing member (403) is fixedly connected to the second door inner panel (402), and the second reinforcing member (403) and the second door inner panel (402) form the second reinforcing cavity (405).

4. The pillarless body structure according to claim 3, characterized in that, The first reinforcing member (303) is fixedly connected to the first door outer panel (301). The first reinforcing member (303), the first door outer panel (301), and the first door inner panel (302) form a third reinforcing cavity (306). The third reinforcing cavity (306) extends downward from the top of the rear end of the front door (3) to the bottom of the rear end of the front door (3). The third reinforcing cavity (306) is located behind the first reinforcing cavity (305). The second reinforcing member (403) is fixedly connected to the second door outer panel (401). The second reinforcing member (403), the second door outer panel (401), and the first door inner panel (302) form a fourth reinforcing cavity (406). The fourth reinforcing cavity (406) extends downward from the top of the front end of the rear door (4) to the bottom of the front end of the rear door (4). The fourth reinforcing cavity (406) is located in front of the second reinforcing cavity (405).

5. The pillarless body structure according to claim 1, characterized in that, It also includes a first door lock disposed between the top of the rear end of the front door (3) and the upper side beam (1) of the side wall, the first door lock having a locked state and an unlocked state; it also includes a second door lock disposed between the top of the front end of the rear door (4) and the upper side beam (1), the second door lock having a locked state and an unlocked state.

6. The pillarless body structure according to claim 1, characterized in that, It also includes a third door lock disposed between the bottom of the rear end of the front door (3) and the sill beam (2), the third door lock having a locked state and an unlocked state; it also includes a fourth door lock disposed between the bottom of the front end of the rear door (4) and the sill beam (2), the fourth door lock having a locked state and an unlocked state.

7. The pillarless body structure according to claim 1, characterized in that, Multiple sealing strips are provided between the rear end of the front door (3) and the front end of the rear door (4), and the multiple sealing strips are arranged sequentially at intervals from the outside of the vehicle to the inside of the vehicle.

8. The pillarless body structure according to claim 7, characterized in that, The sealing portion (602) of at least one of the sealing strips includes a rubber sealing layer (6021), an elastic buffer layer (6022), and a sound-absorbing material layer (6023) arranged sequentially from the outside to the inside.

9. The pillarless body structure according to claim 7, characterized in that, The multiple sealing strips include a first sealing strip (5) and a second sealing strip (6). The first sealing strip (5) is installed on the rear end of the front door (3) near the outer side of the vehicle. The rear end of the front door (3) near the outer side of the vehicle has a first edge (304) extending backward. The first edge (304) covers the outer side of the first sealing strip (5). The rear end of the rear door (4) near the inner side of the vehicle has a second edge (404) extending forward. The second sealing strip (6) is installed on the second edge (404).

10. A vehicle, characterized in that, Including the B-pillarless body structure as described in any one of claims 1-9.

Images