CN113291381A - Car B post additional strengthening and car B post - Google Patents
Car B post additional strengthening and car B post Download PDFInfo
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- CN113291381A CN113291381A CN202110713057.6A CN202110713057A CN113291381A CN 113291381 A CN113291381 A CN 113291381A CN 202110713057 A CN202110713057 A CN 202110713057A CN 113291381 A CN113291381 A CN 113291381A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/04—Door pillars ; windshield pillars
Abstract
The application relates to an automobile B-pillar reinforcing structure and an automobile B-pillar, wherein the automobile B-pillar reinforcing structure comprises a B-pillar reinforcing plate, a B-pillar upper edge beam and a plurality of first supporting plates, and the B-pillar upper edge beam is connected to the top of the B-pillar reinforcing plate; the first supporting plates are assembled in a cavity of the B-pillar upper edge beam, and a triangular stable structure used for improving the jacking value of a vehicle body is formed in the connecting area of the B-pillar upper edge beam and the B-pillar reinforcing plate by the first supporting plates, the B-pillar upper edge beam and the B-pillar reinforcing plate. The first supporting plate can support the cavity of the B-column upper edge beam, so that the B-column upper edge beam is prevented from collapsing and deforming under the action of collision, and the supporting strength of the B-column upper edge beam is enhanced; the triangular stabilizing structure can improve the overall strength and rigidity of the joint of the B-column reinforcing plate and the B-column upper side beam and the peripheral area, and avoids stress concentration deformation formed in the joint and the peripheral area, so that the jacking performance of the whole vehicle body is improved, and the safety of passengers is improved.
Description
Technical Field
The application relates to the technical field of automobile industry, in particular to an automobile B column reinforcing structure and an automobile B column.
Background
At present, based on the popularization of global environmental protection and energy conservation consciousness, the market puts higher requirements on the light weight design of the body-in-white. And the requirements of consumers on the safety performance of passenger cars and the vibration and noise control of NVH (noise, vibration and harshness) -car bodies are increasingly improved, so that the rigidity and the strength of the whole car structure must be improved while the whole car body is thinned.
The safety performance is an important index of the body-in-white performance, particularly the side collision performance and the top pressure performance, and the body side B column structure plays a crucial role in absorbing and transmitting energy in the side collision due to the small buffer area of the side body structure, so that the strength of the body side B column structure is the key for ensuring the side collision performance.
There is data showing that in a collision accident between vehicles, the incidence of a side collision accounts for 19%, which exceeds the incidence of a frontal collision, next to the incidence of a rear-end collision. A crash investigation of a galloping car has shown that in all types of accidents, the mortality rate of side impacts is as high as 44%. This is because when the car is impacted in the front or rear, the engine compartment and the trunk both provide a large buffering and energy-absorbing space for the passenger compartment, and because the variable space of the side of the car body is small, the degree of injury to the door passengers after the collision is often more serious than the rear-end collision.
The B column reinforcing plate is a bearing beam between the front row and the rear row of an automobile cabin, is connected with a top cover and a lower floor, a wiring harness penetrates through the B column reinforcing plate, a safety belt fixing buckle is arranged, and even an air bag can be arranged.
In some related art solutions, when designing the B-pillar, the B-pillar reinforcement plate and the B-pillar roof side rail use high-strength thermoformed plate materials to improve strength. However, with the popularization of the current new energy vehicle type and the hybrid vehicle type and the upgrading of consumption, the corresponding vehicle type is large in size, the weight of the whole vehicle is increased, and higher requirements are provided for the side wall B column structure and the B column roof side rail strength. Therefore, related research and development personnel are required to analyze the stress conditions of the vehicle body under various working conditions and determine the B-pillar reinforcing structure when designing the specific white vehicle body component.
Disclosure of Invention
The embodiment of the application provides a car B post additional strengthening and car B post, not only can strengthen the support intensity of B post roof beam, can promote B post reinforcing plate and B post roof beam joint and peripheral region's bulk strength and rigidity moreover, avoid forming stress concentration deformation in joint and peripheral region to promote whole automobile body roof pressure performance, promote passenger's security.
In a first aspect, an automotive B-pillar reinforcement structure is provided, which includes:
a B-pillar reinforcement plate;
the B column upper edge beam is connected to the top of the B column reinforcing plate; and the number of the first and second groups,
the first supporting plates are assembled in a cavity of the B-column upper edge beam, and a triangular stable structure used for improving the jacking value of the automobile body is formed in the connecting area of the B-column upper edge beam and the B-column reinforcing plate by the first supporting plates, the B-column upper edge beam and the B-column reinforcing plate.
In some embodiments, the first support plate is in a zigzag configuration.
In some embodiments, two first support plates are provided, and the two first support plates are respectively located on two sides of the B-pillar reinforcing plate along the length direction of the vehicle body.
In some embodiments, the automobile B-pillar reinforcement structure further includes a second support plate disposed on the upper portion of the B-pillar reinforcement plate and located in the cavity of the B-pillar reinforcement plate, one end of the second support plate is connected to the inner wall of the cavity of the B-pillar reinforcement plate, and the other end of the second support plate is used for being connected to the B-pillar inner panel.
In some embodiments, one end of the second support plate is connected with the inner wall of the cavity of the B-pillar reinforcement plate in a spot welding mode, and the other end of the second support plate is connected with the B-pillar inner plate through a bolt.
In some embodiments, the second support plate is in a zigzag configuration.
In some embodiments, the second supporting plate covers the B-pillar reinforcing plate within 450mm from the top edge beam seam allowance of the B-pillar.
In some embodiments, the lower part of the B-pillar reinforcing plate is also formed with an energy-absorbing crumple area;
the automobile B-column reinforcing structure further comprises a B-column reinforcing plate, the B-column reinforcing plate is arranged on the B-column reinforcing plate and located in the energy-absorbing crumple area, and the B-column reinforcing plate is made of mild steel materials.
In some embodiments, the mild steel material has a post-fracture elongation of greater than 34%; and/or the presence of a gas in the gas,
along the length direction of the vehicle body, the B-column reinforcing plate covers two sides of the B-column reinforcing plate; and/or the presence of a gas in the gas,
the upper boundary of the energy-absorbing crumple zone is 450mm below a whole vehicle coordinate system, and the lower boundary of the energy-absorbing crumple zone is 15mm below the side threshold beam.
In a second aspect, an automotive B-pillar is provided, comprising:
the automobile B-pillar reinforcement structure as described in any one of the above;
the B-pillar inner plate is arranged on one side of the automobile B-pillar reinforcing structure;
and the B-column outer plate is arranged on the other side of the automobile B-column reinforcing structure.
The beneficial effect that technical scheme that this application provided brought includes:
(1) the embodiment of the application provides car B post additional strengthening and car B post, in this embodiment, on the one hand, owing to be provided with the first backup pad of a plurality of in the cavity of B post roof beam, when bumping, first backup pad can play the supporting role, supports the cavity of B post roof beam to prevent under the collision effort, the B post roof beam takes place to burst and contracts and warp, with this reinforcing B post roof beam's support strength, promotes passenger's security. On the other hand, because a plurality of first supporting plates are arranged in the cavity of the B-pillar roof side rail, so that each first supporting plate, the B-pillar roof side rail and the B-pillar reinforcing plate are connected with the area, where the B-pillar roof side rail is connected with the B-pillar reinforcing plate, to form a triangular stable structure.
(2) Adopt two first backup pads to along automobile body length direction, set up respectively in B post reinforcing plate both sides, satisfying formation triangle-shaped stable structure, under the condition of the bulk strength and the rigidity of promoting B post reinforcing plate and B post roof beam joint and peripheral region, used the first backup pad of minimum quantity, not only can reduce manufacturing cost, be favorable to the lightweight design of vehicle moreover.
(3) A second supporting plate is arranged in a cavity at the upper part of the B-column reinforcing plate, and in the side collision or jacking process, the second supporting plate can simultaneously transmit the collision force or the jacking force to the B-column reinforcing plate and the B-column inner plate, so that the upper part of the B-column is prevented from losing efficacy and deforming. The second support plate is designed to be connected with the B column reinforcing plate through spot welding and connected with the B column inner plate through bolts, and by adopting the structure, the B column reinforcing plate can be effectively enhanced, and meanwhile, the B column inner plate is connected with the B column reinforcing plate, so that a high-rigidity and ultra-safe B column structure is formed, the support strength of the B column is further enhanced, and the safety of passengers is improved.
(4) Set up the B post stiffening plate through crumpling the region at the energy-absorbing, and the B post stiffening plate adopts mild steel material preparation to form, can effectively promote B post lower part deformability, through crumpling the performance, can absorb the collision energy more at the collision in-process, and the protection thermoforming B post stiffening plate does not ftracture, protects passenger's safety effectively.
(5) The coverage range of the energy absorption and collapse area is set as follows: the upper boundary is 450mm below a finished automobile coordinate system, the lower boundary is 15mm below a side sill beam, the B-pillar reinforcing plate is designed to be made of a soft steel material with the elongation after fracture larger than 34%, the two sides of the B-pillar reinforcing plate are covered, meanwhile, the thickness of 1.35-1.5 mm and the tensile strength of 1300-1650 mpa are matched for use, the B-pillar reinforcing plate is thermoformed, the lower part of the B-pillar is further prevented from being broken under the side collision loading working condition, and therefore passengers are protected.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural view of a first automobile B-pillar provided by the present application;
FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic view of a B-pillar reinforcement structure of an automobile according to an embodiment of the present disclosure;
FIG. 4 is a schematic view of another perspective view of a B-pillar reinforcement structure of an automobile according to an embodiment of the present disclosure;
FIG. 5 is a schematic cross-sectional view taken along line B-B in FIG. 4.
In the figure: 1. a B-pillar reinforcement plate; 2. an upper edge beam of the B column; 3. a triangular stabilizing structure; 4. a first support plate; 5. a second support plate; 6. b column inner plates; 7. a bolt; 8. welding spots; 9. an energy-absorbing crumple zone; 10. a B-pillar reinforcing plate; 11. a B-pillar upper reinforcing plate; 12. and a reinforcing plate is arranged at the lower hinge mounting point.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Fig. 1 and 2 illustrate a first technical solution of a B-pillar of an automobile, specifically, a B-pillar reinforcing plate 1 is connected to a B-pillar roof rail, a B-pillar upper reinforcing plate 11 is disposed in a cavity of the B-pillar reinforcing plate 1, the B-pillar upper reinforcing plate 11 is located at an upper position of the B-pillar reinforcing plate 1, the B-pillar upper reinforcing plate 11 is a U-shaped reinforcing plate adapted to the cavity of the B-pillar reinforcing plate 1, and the B-pillar upper reinforcing plate 11 is disposed to improve the deformation resistance of the B-pillar upper portion, thereby reducing the deformation of the B-pillar upper portion in a collision process and protecting passengers.
Meanwhile, a lower hinge mounting point reinforcing plate 12 is further arranged in the cavity of the B-pillar reinforcing plate 1, and the lower hinge mounting point reinforcing plate 12 is located at the lower position of the B-pillar reinforcing plate 1.
The B-pillar reinforcing plate 1 and the B-pillar inner plate 6 are connected with each other, a closed cavity space is formed between the B-pillar reinforcing plate 1 and the B-pillar inner plate 6, the cavity space can improve structural rigidity on one hand, and on the other hand, the cavity space can improve deformation resistance when collision or impact occurs.
In addition, the B-pillar reinforcing plate 1 and the B-pillar upper edge beam 2 are made of high-strength hot forming parts, and the strength of the B-pillar is sequentially improved.
However, the inventors have found that the above structure still has many problems after trial and error.
Such as: the structure is only reinforced by the B-column reinforcing plate 1 and the B-column roof side rail 2 in a high-strength hot forming part mode, and the jacking value of the vehicle body is difficult to improve.
For another example: the B-pillar roof side rail 2 is weak in structure and is easy to deform in the collision process, and the safety of passengers is seriously influenced.
For another example: the B-pillar upper reinforcing plate 11 is a simple U-shaped patch reinforcing structure, has a small reinforcing effect and is easy to deform under the jacking working condition.
For another example: according to the conventional design conditions, in order to form a crumple energy absorption area at the lower part of the B column, the thickness of the thermoforming material at the lower part of the B column is distributed to be about 1.35-1.5 mm, the thickness of the material is thin, the elongation of the material at the lower part of the thermoforming B column is low, and the material is easy to crack in the severe side collision process (such as the C-IASI side collision working condition).
Therefore, the inventors further conducted experimental studies to provide an automobile B-pillar reinforcement structure according to the embodiment of the present application.
Referring to fig. 3 and 4, two schematic views of an automobile B-pillar reinforcement structure according to an embodiment of the present invention are shown, in this embodiment, the automobile B-pillar reinforcement structure includes a B-pillar reinforcement plate 1, a B-pillar roof side rail 2, and a plurality of first support plates 4, where the B-pillar roof side rail 2 is located above the B-pillar reinforcement plate 1, and the B-pillar roof side rail 2 is connected to the top of the B-pillar reinforcement plate 1; the first supporting plate 4 group is located the cavity of B post roof side rail 2 to each first supporting plate 4, B post roof side rail 2 and B post reinforcing plate 1 are formed with triangle-shaped stable structure 3 in B post roof side rail 2 and B post reinforcing plate 1 region of being connected altogether, and this triangle-shaped stable structure 3 can be used for promoting the automobile body roof pressure value.
In this embodiment, on the one hand, owing to be provided with the first backup pad 4 of a plurality of in the cavity of B post roof side rail 2, when bumping, first backup pad 4 can play the supporting role, supports the cavity of B post roof side rail 2 to prevent that under the collision effort, B post roof side rail 2 from taking place to crumple and warp, with this reinforcing B post roof side rail 2's support intensity, promote passenger's security.
On the other hand, because a plurality of first supporting plates 4 are arranged in the cavity of the B-pillar roof side rail 2, so that each first supporting plate 4, the B-pillar roof side rail 2 and the B-pillar reinforcing plate 1 form a triangular stable structure 3 in the connecting area of the B-pillar roof side rail 2 and the B-pillar reinforcing plate 1, when the jacking condition occurs, the triangular stable structure 3 can improve the overall strength and rigidity of the area where the triangular stable structure 3 is located, namely improve the overall strength and rigidity of the joint of the B-pillar roof side rail 1 and the B-pillar roof side rail 2 and the peripheral area, avoid forming stress concentration deformation in the joint and the peripheral area, further improve the jacking performance of the whole vehicle body, and improve the safety of passengers.
In some preferred embodiments, the material used for the B-pillar reinforcing plate 1 is a high-strength hot-forming material with a tensile strength of 1300-1650 mpa, the material used for the first supporting plate 4 is high-strength steel with a tensile strength greater than 780mpa, and by designing the triangular stable structure 3 and matching the hot-forming B-pillar reinforcing plate 1, the hot-forming B-pillar roof rail 2 and the hot-forming first supporting plate 4, the roof pressure value of the vehicle body can be further improved, so that the safety of the vehicle body is improved, and the relevant strict test standard is met.
In some preferred embodiments, the first supporting plate 4 may have a U-shaped structure, and of course, the first supporting plate 4 may also have a Z-shaped structure, and compared with the U-shaped structure, the first supporting plate 4 has a Z-shaped structure, and when a collision occurs, because two ends of the Z-shaped structure extend in opposite directions, the first supporting plate 4 may better resist the impact force, so as to better improve the safety of the passenger.
Referring to fig. 3, in some preferred embodiments, two first support plates 4 are provided, and the two first support plates 4 are respectively located at two sides of the B-pillar reinforcement plate 1 along the length direction of the vehicle body. Adopt two first backup pads 4 to along automobile body length direction, set up respectively in 1 both sides of B post reinforcing plate, satisfying and forming triangle-shaped stable structure 3, under the condition of promoting B post reinforcing plate 1 and B post roof side rail 2 joint and peripheral region's bulk strength and rigidity, used minimum quantity first backup pad 4, not only can reduce manufacturing cost, be favorable to the lightweight design of vehicle moreover.
Referring to fig. 3, 4 and 5, in some preferred embodiments, the B-pillar reinforcement structure of the automobile further includes a second support plate 5, the second support plate 5 is disposed on the upper portion of the B-pillar reinforcement plate 1 and located in the cavity of the B-pillar reinforcement plate 1, one end of the second support plate 5 is connected to the inner wall of the cavity of the B-pillar reinforcement plate 1, and the other end of the second support plate 5 is used for being connected to the B-pillar inner panel 6. In this embodiment, a second supporting plate 5 is disposed in the cavity at the upper part of the B-pillar reinforcement plate 1, so that during side impact or pressing, the second supporting plate 5 can transmit impact force or pressing force to the B-pillar reinforcement plate 1 and the B-pillar inner plate 6 at the same time, thereby ensuring that the upper part of the B-pillar does not deform due to failure.
In some preferred embodiments, the material used for the second support plate 5 is high strength steel with a tensile strength greater than 780 mpa.
Referring to fig. 5, in some preferred embodiments, one end of the second supporting plate 5 is spot-welded to the inner wall of the cavity of the B-pillar reinforcement plate 1, and is fixedly connected by a welding spot 8, and the other end of the second supporting plate 5 is connected to the B-pillar inner plate 6 by a bolt 7.
In this embodiment, the second supporting plate 5 is designed to be connected with the B-pillar reinforcement plate 1 by spot welding and connected with the B-pillar inner plate 6 by the bolt 7, and with this structure, the B-pillar reinforcement plate 1 can be effectively reinforced, and the B-pillar inner plate 6 is connected with the B-pillar reinforcement plate 1, so as to form a high-rigidity and ultra-safe B-pillar structure, further enhance the supporting strength of the B-pillar, and improve the safety of passengers.
In some preferred embodiments, the second support plate 5 may have a U-shaped structure, and as shown in fig. 5, the second support plate 5 may also have a Z-shaped structure, and as compared with the U-shaped structure, the second support plate 5 has a Z-shaped structure, and when a collision occurs, because two ends of the Z-shaped structure extend in opposite directions, the second support plate 5 can better resist the impact force, and thus the safety of the passenger can be better improved.
In some preferred embodiments, the second supporting plate 5 is covered on the B-pillar reinforcing plate 1 within 450mm from the seam allowance of the B-pillar roof side rail 2 through CAE settlement simulation, and the structure within the range is reinforced in turn.
In some preferred embodiments, referring to fig. 3 and 4, the lower portion of the B-pillar reinforcement plate 1 is further formed with an energy-absorbing crumple zone 9, the B-pillar reinforcement structure of the automobile further includes a B-pillar reinforcement plate 10, the B-pillar reinforcement plate 10 is disposed on the B-pillar reinforcement plate 1 and is located in the energy-absorbing crumple zone 9, and the B-pillar reinforcement plate 10 is made of a mild steel material. Through setting up B post stiffening plate 10 in energy-absorbing crumple zone 9, and B post stiffening plate 10 adopts mild steel material to make and forms, can effectively promote B post lower part deformability, through the performance of crumpling, can absorb the collision energy more at the collision in-process, and protection thermoforming B post stiffening plate 1 does not ftracture, protects passenger's safety effectively.
In some preferred embodiments, the elongation after fracture of the mild steel material is greater than 34%, the B-pillar reinforcing plate 10 covers both sides of the B-pillar reinforcing plate 1 along the length direction of the vehicle body, the upper boundary of the energy-absorbing crumple zone 9 is 450mm below the coordinate system of the whole vehicle, and the lower boundary of the energy-absorbing crumple zone 9 is 15mm below the side sill beam.
In the present embodiment, the coverage of the energy-absorbing crush zone 9 is set as follows: the upper boundary is 450mm below the coordinate system of the whole vehicle, the lower boundary is 15mm below the side sill beam, the B column reinforcing plate 10 is designed to be made of mild steel material with the elongation after fracture larger than 34%, the two sides of the B column reinforcing plate 1 are covered, meanwhile, the thickness of 1.35-1.5 mm and the tensile strength of 1300-1650 mpa are matched for use, the B column reinforcing plate 1 is thermoformed, the lower part of the B column is further prevented from being fractured under the side collision loading working condition, and therefore passengers are protected.
The embodiment of the application also provides an automobile B column, which comprises an inner B column plate 6, an outer B column plate and the automobile B column reinforcing structure provided by any one of the above embodiments, wherein the inner B column plate 6 is arranged on one side of the automobile B column reinforcing structure, and the outer B column plate is arranged on the other side of the automobile B column reinforcing structure.
The principle of the application is as follows:
(1) on the one hand, owing to be provided with the first backup pad 4 of a plurality of in the cavity of B post roof side rail 2, when bumping, first backup pad 4 can play the supporting role, supports the cavity of B post roof side rail 2 to prevent that under the collision effort, the B post roof side rail 2 takes place to burst and contracts and warp, with this reinforcing B post roof side rail 2's support intensity, promotes passenger's security.
On the other hand, because a plurality of first supporting plates 4 are arranged in the cavity of the B-pillar roof side rail 2, so that each first supporting plate 4, the B-pillar roof side rail 2 and the B-pillar reinforcing plate 1 form a triangular stable structure 3 in the connecting area of the B-pillar roof side rail 2 and the B-pillar reinforcing plate 1, when the jacking condition occurs, the triangular stable structure 3 can improve the overall strength and rigidity of the area where the triangular stable structure 3 is located, namely improve the overall strength and rigidity of the joint of the B-pillar roof side rail 1 and the B-pillar roof side rail 2 and the peripheral area, avoid forming stress concentration deformation in the joint and the peripheral area, further improve the jacking performance of the whole vehicle body, and improve the safety of passengers.
(2) The first supporting plate 4 adopts a Z-shaped structure, and when collision occurs, because two ends of the Z-shaped structure extend towards opposite directions, the first supporting plate 4 can better resist the impact force, so that the safety of passengers can be better improved.
(3) Adopt two first backup pads 4 to along automobile body length direction, set up respectively in 1 both sides of B post reinforcing plate, satisfying and forming triangle-shaped stable structure 3, under the condition of promoting B post reinforcing plate 1 and B post roof side rail 2 joint and peripheral region's bulk strength and rigidity, used minimum quantity first backup pad 4, not only can reduce manufacturing cost, be favorable to the lightweight design of vehicle moreover.
(4) A second supporting plate 5 is arranged in a cavity at the upper part of the B-column reinforcing plate 1, and the purpose is that in the side collision or jacking process, the second supporting plate 5 can transmit collision force or jacking force to the B-column reinforcing plate 1 and the B-column inner plate 6 at the same time, so that the upper part of the B-column is prevented from losing efficacy and deforming.
(5) The second supporting plate 5 is designed to be connected with the B-column reinforcing plate 1 through spot welding and connected with the B-column inner plate 6 through the bolt 7, and by adopting the structure, the B-column reinforcing plate 1 can be effectively enhanced, and meanwhile, the B-column inner plate 6 is connected with the B-column reinforcing plate 1, so that a high-rigidity and ultra-safe B-column structure is formed, the supporting strength of the B-column is further enhanced, and the safety of passengers is improved.
(6) The second support plate 5 adopts a zigzag structure, and when a collision occurs, because two ends of the zigzag structure extend towards opposite directions, the second support plate 5 can better resist the impact force, thereby better improving the safety of passengers.
(7) Through setting up B post stiffening plate 10 in energy-absorbing crumple zone 9, and B post stiffening plate 10 adopts mild steel material to make and forms, can effectively promote B post lower part deformability, through the performance of crumpling, can absorb the collision energy more at the collision in-process, and protection thermoforming B post stiffening plate 1 does not ftracture, protects passenger's safety effectively.
The coverage of the energy-absorbing crumple zone 9 is set as follows: the upper boundary is 450mm below the coordinate system of the whole vehicle, the lower boundary is 15mm below the side sill beam, the B column reinforcing plate 10 is designed to be made of mild steel material with the elongation after fracture larger than 34%, the two sides of the B column reinforcing plate 1 are covered, meanwhile, the thickness of 1.35-1.5 mm and the tensile strength of 1300-1650 mpa are matched for use, the B column reinforcing plate 1 is thermoformed, the lower part of the B column is further prevented from being fractured under the side collision loading working condition, and therefore passengers are protected.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An automobile B-pillar reinforcement structure, characterized in that it comprises:
a B-pillar reinforcement plate (1);
the B-column upper edge beam (2), and the B-column upper edge beam (2) is connected to the top of the B-column reinforcing plate (1); and the number of the first and second groups,
the supporting plates (4) are arranged in a cavity of the B-column upper edge beam (2), and a triangular stabilizing structure (3) for improving the jacking value of the vehicle body is formed in the connecting area of the B-column upper edge beam (2) and the B-column reinforcing plate (1) by the first supporting plates (4), the B-column upper edge beam (2) and the B-column reinforcing plate (1) together.
2. The B-pillar reinforcement structure for an automobile according to claim 1, wherein: the first supporting plate (4) is of a Z-shaped structure.
3. The B-pillar reinforcement structure for an automobile according to claim 1, wherein: the number of the first supporting plates (4) is two, and the two first supporting plates (4) are respectively located on two sides of the B-column reinforcing plate (1) along the length direction of the vehicle body.
4. The B-pillar reinforcement structure for an automobile according to claim 1, wherein: the automobile B-pillar reinforcing structure further comprises a second supporting plate (5), the second supporting plate (5) is arranged on the upper portion of the B-pillar reinforcing plate (1) and located in the cavity of the B-pillar reinforcing plate (1), one end of the second supporting plate (5) is connected with the inner wall of the cavity of the B-pillar reinforcing plate (1), and the other end of the second supporting plate (5) is used for being connected with a B-pillar inner plate (6).
5. The B-pillar reinforcement structure for an automobile according to claim 4, wherein:
one end of the second supporting plate (5) is connected with the inner wall of the cavity of the B-pillar reinforcing plate (1) in a spot welding mode, and the other end of the second supporting plate (5) is connected with the B-pillar inner plate (6) through a bolt (7).
6. The B-pillar reinforcement structure for an automobile according to claim 4, wherein:
the second supporting plate (5) is of a Z-shaped structure.
7. The B-pillar reinforcement structure for an automobile according to claim 4, wherein:
the range of the second supporting plate (5) covering the B-column reinforcing plate (1) is within 450mm from the seam allowance of the B-column upper edge beam (2) downwards.
8. The B-pillar reinforcement structure for an automobile according to claim 1, wherein:
the lower part of the B-pillar reinforcing plate (1) is also provided with an energy-absorbing crumple area (9);
the B-pillar reinforcing structure of the automobile further comprises a B-pillar reinforcing plate (10), the B-pillar reinforcing plate (10) is arranged on the B-pillar reinforcing plate (1) and located in the energy-absorbing crumple zone (9), and the B-pillar reinforcing plate (10) is made of a mild steel material.
9. The B-pillar reinforcement structure for an automobile according to claim 8, wherein:
the elongation after fracture of the mild steel material is more than 34 percent; and/or the presence of a gas in the gas,
along the length direction of the vehicle body, the B-column reinforcing plate (10) covers two sides of the B-column reinforcing plate (1); and/or the presence of a gas in the gas,
the upper boundary of the energy-absorbing crumple zone (9) is 450 millimeters below a whole vehicle coordinate system, and the lower boundary of the energy-absorbing crumple zone (9) is 15 millimeters below the side threshold beam.
10. An automotive B-pillar, comprising:
the automobile B-pillar reinforcement structure according to any one of claims 1 to 9;
the B-pillar inner plate (6), the B-pillar inner plate (6) is arranged on one side of the automobile B-pillar reinforcing structure;
and the B-column outer plate is arranged on the other side of the automobile B-column reinforcing structure.
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| CN202110713057.6A CN113291381A (en) | 2021-06-25 | 2021-06-25 | Car B post additional strengthening and car B post |
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| CN202110713057.6A CN113291381A (en) | 2021-06-25 | 2021-06-25 | Car B post additional strengthening and car B post |
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| CN113291381A true CN113291381A (en) | 2021-08-24 |
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| CN202110713057.6A Pending CN113291381A (en) | 2021-06-25 | 2021-06-25 | Car B post additional strengthening and car B post |
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Effective date of registration: 20220124 Address after: 430000 No. n3010, 3rd floor, R & D building, building n, Artificial Intelligence Science Park, Wuhan Economic and Technological Development Zone, Hubei Province Applicant after: Lantu Automobile Technology Co.,Ltd. Address before: 430056 No. 1 Dongfeng Avenue, Wuhan economic and Technological Development Zone, Hubei, Wuhan Applicant before: Dongfeng Motor Corp. |
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