CN209757269U - Side wall threshold beam structure and car - Google Patents
Side wall threshold beam structure and car Download PDFInfo
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- CN209757269U CN209757269U CN201920546612.9U CN201920546612U CN209757269U CN 209757269 U CN209757269 U CN 209757269U CN 201920546612 U CN201920546612 U CN 201920546612U CN 209757269 U CN209757269 U CN 209757269U
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Abstract
The utility model provides a side wall threshold beam structure, which comprises a lower column A reinforcing plate, a B column reinforcing plate, a lower column C reinforcing plate and a side wall threshold beam body, wherein the side wall threshold beam body is of a tubular structure; the B-pillar reinforcing plate is provided with a first arc-shaped groove, and the middle part of the side-wall doorsill beam body is embedded into the first arc-shaped groove and is attached to and welded with the inner wall of the first arc-shaped groove; the peripheral face of the two ends of the side wall threshold beam body is respectively welded with the lower reinforcing plate of the A column and the lower reinforcing plate of the C column. The utility model also provides an automobile with above-mentioned side wall threshold beam structure. The utility model provides a side wall threshold beam structure, the welding of reinforcing plate under the direct and A post of side wall threshold roof beam body, C post, B post reinforcing plate, welding operation is convenient, low in production cost, and production efficiency is high, and side wall threshold roof beam body deformability is good in addition, and transverse strength is high, and when the vehicle bumps on the side, the impact can be to the transmission of below, top and the dead astern of side wall threshold roof beam body, and it is effectual to pass power.
Description
Technical Field
The utility model belongs to the technical field of the vehicle, more specifically say, relate to a side wall threshold beam structure and car.
Background
The existing car body side wall sill beam structure generally comprises a pillar A lower reinforcing plate, a pillar B reinforcing plate, a pillar C lower reinforcing plate and a side wall sill beam body. The two ends and the middle part of the side wall threshold beam body are respectively connected with the B column reinforcing plate, the A column lower reinforcing plate and the C column lower reinforcing plate.
In the prior art, the side sill body is mostly a spliced beam body formed by welding a plurality of stamping parts together or an integral beam body formed by stamping a steel plate, the longitudinal section of the side sill body of the structure is polygonal, and the side sill body is respectively different in section from an A-pillar lower reinforcing plate, a B-pillar reinforcing plate and a C-pillar lower reinforcing plate and needs to be connected by spot welding, so that the welding mode is complex in operation, and the production efficiency is low; and meanwhile, after connection, the risks of local cracking and wrinkling of the lower reinforcing plate of the A column and the lower reinforcing plate of the C column exist.
In addition, the Z-direction section of the side wall threshold beam body with the beam-shaped structure is deep in the whole vehicle, the problem of performance excess exists, when the vehicle is in side collision, the collision buffering and energy absorption efficiency of a first buffering cavity enclosed by the side wall threshold beam body and a side wall inner plate is low, the collision energy cannot be effectively transmitted to a second buffering cavity enclosed by the side wall inner plate and a floor threshold beam in time, the collision force can be transmitted to a vehicle door hinge through a B-column reinforcing plate in an inclined upward mode, the metal plate at the position of the vehicle door hinge is deformed, the vehicle door is not easy to open, and the safety of passengers is affected.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a side wall threshold beam structure aims at solving the problem that the roof beam-like structure's that exists side wall threshold beam body and A post lower reinforcing plate, B post reinforcing plate, C post lower reinforcing plate welding operation are complicated and the collision energy-absorbing is inefficient among the prior art.
In order to achieve the above object, the utility model adopts the following technical scheme: the side wall threshold beam structure comprises an A-pillar lower reinforcing plate, a B-pillar reinforcing plate, a C-pillar lower reinforcing plate and a side wall threshold beam body, wherein the side wall threshold beam body is of a tubular structure; the B-pillar reinforcing plate is provided with a first arc-shaped groove used for accommodating the side wall threshold beam body, the middle part of the side wall threshold beam body is embedded into the first arc-shaped groove, and the outer wall of the middle part is attached to and welded with the inner wall of the first arc-shaped groove; the outer peripheral surfaces of two ends of the side wall threshold beam body are respectively welded with the lower A pillar reinforcing plate and the lower C pillar reinforcing plate.
Further, the section circular arc of the circular arc surface of the first arc-shaped groove is a minor arc.
Further, a B-column inner plate is arranged on the inner side of the B-column reinforcing plate; be equipped with on the B post inner panel and be used for holding the second arc wall of side wall threshold roof beam body, the middle part parcel of side wall threshold roof beam body is in the second arc wall between the first arc wall, and the middle part outer wall with the laminating of second arc wall inner wall and welding.
Further, the section arc of the arc surface of the second arc-shaped groove is a minor arc.
Furthermore, a side wall outer plate is arranged on the outer side of the B-pillar reinforcing plate, and a first collision buffer cavity is defined by the side wall outer plate, the side wall sill beam body and the B-pillar inner plate.
Furthermore, the inner side of the B-pillar inner plate is provided with a floor threshold beam, and the B-pillar inner plate and the floor threshold beam enclose a second collision buffer cavity.
Furthermore, the side sill beam body is connected with the B-pillar reinforcing plate and the B-pillar inner plate through carbon dioxide arc welding respectively.
Furthermore, the outer peripheral surface of one end of the side wall threshold beam body is connected with the A pillar lower reinforcing plate through carbon dioxide arc welding.
Further, the outer peripheral surface of the other end of the side wall threshold beam body is connected with the C pillar lower reinforcing plate through carbon dioxide arc welding.
The utility model provides a side wall threshold beam structure's beneficial effect lies in: the utility model discloses side wall threshold beam body of side wall threshold beam structure is the tubular structure, the outer peripheral face at its both ends respectively with reinforcing plate under the A post, reinforcing plate welding under the C post, the outer peripheral face of middle part and the first arc wall laminating welding of B post reinforcing plate, adopt the mode of spot welding to compare with prior art, welding operation is convenient, high production efficiency, and the shaping is easily makeed to tubular structure's side wall threshold beam body, the mould development cost has been saved, in addition, the direct reinforcing plate under with the A post of side wall threshold beam body, the B post reinforcing plate, reinforcing plate welding under the C post, need not to use other connecting pieces, the production cost is saved, and the production efficiency is improved simultaneously.
Tubular structure's side wall threshold roof beam body self does not have dog-ear, and deformability is good, and transverse strength is high, and when the vehicle took place the side collision, the impact can be to the below of side wall threshold roof beam body, top and the transmission directly behind, has promoted the biography power effect of side collision, has avoided the impact to transmit to B post door lock region in the slant, has promoted driving safety performance.
Another object of the present invention is to provide an automobile, which includes the above side sill beam structure.
The utility model provides a beneficial effect of car is the same with the beneficial effect of side wall threshold beam structure, no longer gives unnecessary details here.
Drawings
Fig. 1 is a first schematic structural view of a side sill beam structure provided in an embodiment of the present invention;
Fig. 2 is a structural schematic view of a side sill beam structure provided in an embodiment of the present invention;
Fig. 3 is a sectional structural view of the line D-D of fig. 2 (the arrow in the figure indicates the direction of the collision force).
In the figure: 1. a column A lower reinforcing plate; 2. a B-pillar reinforcement plate; 21. a first arc-shaped slot; 3. c column lower reinforcing plate; 4. a side sill beam body; 5. b column inner plates; 51. a second arc-shaped slot; 6. a side outer plate; 7. a floor threshold beam; 8. a first crash cushion cavity; 9. a second crash cushion cavity.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to fig. 3, the structure of the side sill beam according to the present invention will now be described. The side wall sill beam structure comprises a lower pillar A reinforcing plate 1, a pillar B reinforcing plate 2, a lower pillar C reinforcing plate 3 and a side wall sill beam body 4. The side wall threshold beam body 4 is of a tubular structure, and the peripheral surfaces of two ends of the side wall threshold beam body are respectively welded with the A pillar lower reinforcing plate 1 and the C pillar lower reinforcing plate 3. Be equipped with on B post reinforcing plate 2 and be used for holding the first arc wall 21 of side wall threshold roof beam body 4, the middle part embedding first arc wall 21 of side wall threshold roof beam body 4, and the laminating of middle part outer wall and first arc wall 21 inner wall and welding.
The utility model provides a side wall threshold beam structure, 3 welding of reinforcing plate under 4 direct and A post reinforcing plate 1, B post reinforcing plate 2, the C post of side wall threshold beam body need not to use other connecting pieces, has saved manufacturing cost to compare with the mode that prior art adopted spot welding, welding operation is convenient, has improved production efficiency, and the shaping is easily makeed to tubular structure's side wall threshold beam body 4, has saved mould development cost.
In addition, the tubular structure's side wall threshold roof beam body 4 does not have dog-ear by itself, and deformability is good, and lateral strength is high, and when the vehicle took place the side collision, set up on the side wall planking 6 atress in the B post reinforcing plate 2 outside and transmit the impact to B post reinforcing plate 2 and side wall threshold roof beam body 4 on, first arc wall 21 and side wall threshold roof beam body 4 compression deformation to can be to the transmission of impact to side wall threshold roof beam body 4 below, top and dead astern, promoted the biography power effect of side collision, avoided the impact to transmit to B post door lock region in the slant, promoted driving safety performance.
Because B post reinforcing plate 2 adopts the cold stamping forming of high strength steel sheet, in order to satisfy the assembly requirement of B post reinforcing plate 2 and side wall threshold roof beam body 4 to simplify the stamping forming technology of B post reinforcing plate 2, as the utility model provides a concrete implementation of side wall threshold beam structure, the cross-section circular arc of the arc surface of first arc wall 21 is the minor arc, refers to fig. 3. Specifically, the lower part of the B-pillar reinforcing plate 2 is bent downwards to form a first arc-shaped groove 21, the central angle of a minor arc is slightly smaller than 90 degrees or equal to 90 degrees or slightly larger than 90 degrees, namely, the outer peripheral surface of the middle part of the side sill body 4, which is about one quarter, is attached to the arc surface of the first arc-shaped groove 21.
Referring to fig. 3, as a specific embodiment of the side wall sill beam structure provided by the present invention, the inner side of the B-pillar reinforcement plate 2 is provided with a B-pillar inner plate 5, the B-pillar inner plate 5 is provided with a second arc-shaped groove 51 for accommodating the side wall sill beam body 4, the middle portion of the side wall sill beam body 4 is wrapped between the second arc-shaped groove 51 and the first arc-shaped groove 21, and the outer wall of the middle portion is attached to and welded to the inner wall of the second arc-shaped groove 51. The middle part of the side wall threshold beam body 4 is coated between the B-pillar inner plate 5 and the B-pillar reinforcing plate 2, so that the deformation capacity of the side wall threshold beam body 4 is further improved.
Because the B-pillar inner panel 5 is formed by cold stamping of a high-strength steel plate, in order to meet the assembly requirements of the B-pillar inner panel 5 and the side sill beam body 4 and simplify the punch forming process of the B-pillar inner panel 5, on the basis of the above embodiment, the arc of the cross section of the arc surface of the second arc-shaped groove 51 is a minor arc, which is referred to fig. 3. Specifically, the middle part of B post inner panel 5 is buckled and is formed second arc wall 51, and the central angle of minor arc is less than 120 or equals 120 or is slightly more than 120 slightly, that is to say that the outer peripheral face about the third of the middle part of side wall threshold roof beam body 4 is laminated with the cambered surface of second arc wall 51, this kind of design makes B post inner panel 5 easily stamping forming, satisfy the assembly needs with side wall threshold roof beam body 4, and when the vehicle received side collision, the impact can be more easily to the transmission directly behind side wall threshold roof beam body 4.
Specifically, a first collision buffer cavity 8 is defined by the side wall outer plate 6, the side wall threshold beam body 4 and the B-pillar inner plate 5. The inner side of the B-pillar inner panel 5 is provided with a floor rocker 7, and the B-pillar inner panel 5 and the floor rocker 7 enclose a second crash cushion cavity 9, see fig. 3. After the side wall outer plate 6 is collided by the outside, the force is transmitted to the side wall doorsill beam body 4, and the side wall doorsill beam body 4 is welded with the B-pillar reinforcing plate 2 and the B-pillar inner plate 5, so that the firmness is high, and the collision force is transmitted to the second collision buffer cavity 9 through the B-pillar inner plate 5. This biography power route links into a whole with first collision buffering cavity 8, second collision buffering cavity 9, and the efficiency of biography power has very big promotion than current motorcycle type, can absorb outside power at the maximum after the collision, avoids the impact to transmit to B post door lock region in the slant, influences passenger's safety.
Referring to fig. 1 and 2, as a specific embodiment of the side sill beam structure of the present invention, a side sill beam body 4 is connected to a B-pillar reinforcement plate 2 and a B-pillar inner plate 5 by carbon dioxide arc welding. The outer peripheral surfaces of two ends of the side wall threshold beam body 4 are connected with the lower A pillar reinforcing plate 1 and the lower C pillar reinforcing plate 3 through carbon dioxide arc welding.
The utility model also provides an automobile, including foretell side wall threshold beam structure, the utility model provides a beneficial effect of automobile is the same with the beneficial effect of side wall threshold roof beam, no longer gives unnecessary details here.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. Side wall threshold beam structure, including reinforcing plate under A post, B post reinforcing plate, C post reinforcing plate and side wall threshold roof beam body, its characterized in that: the side wall threshold beam body is of a tubular structure; the B-pillar reinforcing plate is provided with a first arc-shaped groove used for accommodating the side wall threshold beam body, the middle part of the side wall threshold beam body is embedded into the first arc-shaped groove, and the outer wall of the middle part is attached to and welded with the inner wall of the first arc-shaped groove; the outer peripheral surfaces of two ends of the side wall threshold beam body are respectively welded with the lower A pillar reinforcing plate and the lower C pillar reinforcing plate.
2. The side sill beam structure of claim 1, wherein: the section circular arc of the circular arc surface of the first arc-shaped groove is a minor arc.
3. the side sill beam structure of claim 1 or 2, further comprising: the inner side of the B-column reinforcing plate is provided with a B-column inner plate; be equipped with on the B post inner panel and be used for holding the second arc wall of side wall threshold roof beam body, the middle part parcel of side wall threshold roof beam body is in the second arc wall between the first arc wall, and the middle part outer wall with the laminating of second arc wall inner wall and welding.
4. the side sill beam structure of claim 3, wherein: the section circular arc of the circular arc surface of the second arc-shaped groove is a minor arc.
5. The side sill beam structure of claim 4, wherein: and a side wall outer plate is arranged on the outer side of the B-pillar reinforcing plate, and a first collision buffer cavity is enclosed by the side wall outer plate, the side wall sill beam body and the B-pillar inner plate.
6. The side sill beam structure of claim 5, wherein: the inboard of B post inner panel is provided with floor threshold roof beam, B post inner panel with floor threshold roof beam encloses into second collision buffering cavity.
7. The side sill beam structure of claim 3, wherein: the side wall sill beam body is connected with the B-pillar reinforcing plate and the B-pillar inner plate through carbon dioxide arc welding respectively.
8. The side sill beam structure of claim 1, wherein: the outer peripheral surface of one end of the side wall threshold beam body is connected with the A pillar lower reinforcing plate through carbon dioxide arc welding.
9. The side sill beam structure of claim 8, wherein: the outer peripheral surface of the other end of the side wall threshold beam body is connected with the C pillar lower reinforcing plate through carbon dioxide arc welding.
10. An automobile, characterized in that: comprising the side sill beam structure of any of the claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920546612.9U CN209757269U (en) | 2019-04-18 | 2019-04-18 | Side wall threshold beam structure and car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920546612.9U CN209757269U (en) | 2019-04-18 | 2019-04-18 | Side wall threshold beam structure and car |
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| Publication Number | Publication Date |
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| CN209757269U true CN209757269U (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920546612.9U Active CN209757269U (en) | 2019-04-18 | 2019-04-18 | Side wall threshold beam structure and car |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111619675A (en) * | 2020-06-24 | 2020-09-04 | 安徽江淮汽车集团股份有限公司 | Automobile side wall outer plate structure |
| CN114684277A (en) * | 2022-03-24 | 2022-07-01 | 阿尔特汽车技术股份有限公司 | Threshold structure and vehicle |
| CN116118872A (en) * | 2023-03-29 | 2023-05-16 | 重庆长安新能源汽车科技有限公司 | Threshold structure of integrated blast pipe and car |
-
2019
- 2019-04-18 CN CN201920546612.9U patent/CN209757269U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111619675A (en) * | 2020-06-24 | 2020-09-04 | 安徽江淮汽车集团股份有限公司 | Automobile side wall outer plate structure |
| CN114684277A (en) * | 2022-03-24 | 2022-07-01 | 阿尔特汽车技术股份有限公司 | Threshold structure and vehicle |
| CN114684277B (en) * | 2022-03-24 | 2023-07-21 | 阿尔特汽车技术股份有限公司 | Threshold structure and vehicle |
| CN116118872A (en) * | 2023-03-29 | 2023-05-16 | 重庆长安新能源汽车科技有限公司 | Threshold structure of integrated blast pipe and car |
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