CN116812009A - B-pillar structure, TRB differential plate, integrated door ring and automobile - Google Patents
B-pillar structure, TRB differential plate, integrated door ring and automobile Download PDFInfo
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- CN116812009A CN116812009A CN202310696581.6A CN202310696581A CN116812009A CN 116812009 A CN116812009 A CN 116812009A CN 202310696581 A CN202310696581 A CN 202310696581A CN 116812009 A CN116812009 A CN 116812009A
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Abstract
本发明公开了一种B柱结构、差厚板、一体式门环及汽车，包括TRB差厚板，该TRB差厚板在长度方向划分为区间A、区间B、区间C、区间D、区间E和区间F六个区间，每个区间内的板材厚度相同；以区间D的中心线为对称轴，区间C和区间E的长度相同，区间B和区间F的长度相同；每个区间的板材厚度为定值；两两相邻区间之间均设置有板材不等厚过渡区，每个板材不等厚过渡区的长度值为对应相邻的两区间之间90倍‑110倍的料厚差；本发明旨在使车身在满足安全强度的同时，实现显著的减重降本；门环B柱采用TRB差厚板，厚度变化灵活，能够精确满足门环在B柱不同位置上的厚度要求，极大限度地节省结构件，实现显著的减重降本效果。
The invention discloses a B-pillar structure, a differential thickness plate, an integrated door knocker and a car, including a TRB differential thickness plate. The TRB differential thickness plate is divided into interval A, interval B, interval C, interval D and interval E in the length direction. and interval F are six intervals, the plate thickness in each interval is the same; with the center line of interval D as the symmetry axis, the lengths of interval C and interval E are the same, the lengths of interval B and interval F are the same; the thickness of the plate in each interval is a fixed value; there are transition zones of unequal thickness of plates between two adjacent intervals, and the length value of each transition zone of unequal thickness of plates is 90 to 110 times the material thickness difference between the two adjacent intervals. ; This invention aims to achieve significant weight and cost reduction while meeting the safety requirements of the vehicle body; the B-pillar of the door ring adopts TRB differential thick plate, the thickness can be changed flexibly, and can accurately meet the thickness requirements of the door ring at different positions of the B-pillar, which is very convenient. Save structural parts to the greatest extent and achieve significant weight reduction and cost reduction.
Description
Technical Field
The application relates to the technical field of automobiles, in particular to a B-pillar structure, a thick plate, an integrated door ring and an automobile.
Background
The safety performance is an important index of the vehicle body performance, especially the requirement on the whole side wall reinforcing plate area of the vehicle is gradually improved in recent years, and more vehicle factories adopt an integrated front door ring structure.
At present, two main flow integral door rings are provided, one is an integral steel plate door ring, the other is a laser splice welding integral door ring, and the two main problems are as follows:
1. the integral steel plate door ring has the same integral thickness; in order to meet the safety strength requirements of different positions, structures such as patch plates, hinge reinforcing plates and the like are required to be added, and waste materials generated by blanking are poor in recycling, so that the weight and cost of a vehicle body are not facilitated.
2. Laser welding an integrated door ring, and discharging the patterns in each area independently; compared with an integral door ring, the safety strength requirements of different positions can be met by adopting different thicknesses through different blanking sheets while saving raw materials; however, because of the process limitation, the number of the segments welded in a splicing way cannot be too large, the thickness variation is limited, and in order to meet the severe safety performance requirement, structures such as patch plates, local reinforcing plates and the like are required to be welded, so that the weight and cost reduction effect of the automobile body is limited.
Disclosure of Invention
In order to solve the problems, the application provides a B-pillar structure, which aims to ensure that the vehicle body can realize significant weight and cost reduction while meeting the safety strength; the door ring B column adopts a TRB differential thick plate (Tailor Rolling Blanks, a rolling variable thickness plate and a continuous variable cross section thin plate obtained by a flexible rolling technology), the thickness change is flexible, the thickness requirement of the door ring on different positions of the B column can be accurately met, structural members are saved to the greatest extent, and the obvious weight and cost reduction effect is realized.
The application provides a B column structure, which comprises a TRB differential thick plate, wherein the TRB differential thick plate is divided into A, B, C, D, E and F six sections in the length direction, and the thickness of plates in each section is the same;
taking the center line of the section D as a symmetry axis, wherein the length of the section C is the same as that of the section E, and the length of the section B is the same as that of the section F;
the thickness of the plate in each interval is a fixed value, the thickness value is 1.4mm-2.35mm, and the different arrangement of the thickness of the plate in the interval can reduce the damage of collision deformation to the body of a driver, the safety target can be realized by the thickness of the plate being 1.4-2.35mm, the weight reducing effect is very obvious compared with the scheme of welding a plurality of thick plates, and meanwhile, the cost of a plurality of sets of dies is saved;
the plate unequal thickness transition areas are arranged between every two adjacent areas, the length value of each plate unequal thickness transition area is 90-110 times of the material thickness difference between every two adjacent areas, the strength of each area is distinguished through the arrangement of six areas, the damage of collision deformation to the body of drivers is reduced, the B column shows an inverted S shape after collision, the deformation is reasonably protected in place, and the safety is improved; the material thickness gradient curve is very gentle, and the maximum material thickness difference is 0.35mm, so that the unequal thickness transition zone of the plate in the length direction is much smaller than six equal thickness zones, and the matching stability is facilitated; and the parting lines on two sides of the unequal-thickness transition zone of each plate are consistent with the whole vehicle coordinate system of the B column in the X direction (the length direction of the vehicle body), namely are parallel to the impact line of the side impact barrier of the C-NCAP, so that the strength division during collision is more clear, and the deformation after collision is more reasonable.
The plate non-uniform thickness transition zone comprises a plate non-uniform thickness transition zone A-B, a plate non-uniform thickness transition zone B-C, a plate non-uniform thickness transition zone C-D, a plate non-uniform thickness transition zone D-E and a plate non-uniform thickness transition zone E-F; the length of the plate unequal-thickness transition zone B-C is the same as that of the plate unequal-thickness transition zone E-F, and the length of the plate unequal-thickness transition zone C-D is the same as that of the plate unequal-thickness transition zone D-E.
The starting point of the lower end of a section A of the B column structure is the lower edge of a threshold, and the end point of the upper end of the section A is arranged 15mm above the lower edge of a side impact barrier direct impact zone 51; the section A is a lower door sill area of a B column, the three-compartment car door sill is very low, the lower edge of the side collision barrier cannot hit the door sill, in order to prevent the door sill from collapsing to deform a seat beam after the side collision barrier is hit, the area is set as a collision weakening area, the lower part is deformed to absorb energy, and the thickness of the section A is set to be 1.4mm;
the starting point of the lower end of a section B of the B column structure is positioned 20mm above the lower edge of the direct impact area of the side impact barrier, and the end point of the upper end of the section B is positioned 70mm below the upper edge of the direct impact area of the side impact barrier; the whole length of the zone B is covered by the side collision barrier direct collision zone; the relation between the section and the dummy is that the section is positioned below the dummy R point and is not required to be too strong, but the section is also a fixed area of the lower hinge of the rear door, so that the section cannot be too weak, and the thickness of the section B is set to be 1.7mm;
the starting point of the lower end of the interval C of the B column structure is positioned 15mm below the upper edge of the side impact barrier direct impact area, and the ending point of the upper end of the interval C is positioned 125mm above the upper edge of the side impact barrier direct impact area; the C area is positioned between the upper edge of the side collision barrier direct collision area and the upper edge of the side collision barrier and covers the R point of the dummy, and the door sheath is provided with a large via hole in the area, so that strengthening treatment is required, and the thickness of the C area is set to be 2.0mm;
the starting point of the lower end of a section D of the B column structure is positioned 70mm below the upper edge of the side collision barrier, and the ending point of the upper end of the section D is positioned 345mm above the upper edge of the side collision barrier; the area D occupies about 50 percent of the length of the whole B column and is the strongest collision protection area; since the upper edge of the side impact barrier passes through the zone D, which is usually the most bending position, and the important organs of the human body are all located in the zone, the zone is required to be strongest to form the most effective protection; the thickness of the interval D is set to 2.35mm;
the starting point of the lower end of a section E of the B column structure is positioned 200mm below the top of the B column, and the ending point of the upper end of the section E is positioned 60mm below the top of the B column; from the angle of collision, the upper part of the B column cannot be too strong, the B column is damaged when being impacted due to the too strong structure, if the upper edge beam fails, the whole B column collapses, and the damage to a dummy is greatly increased; conversely, if the upper part of the B column is weakened to a certain extent, the B column can generate a trend and a form of revolving by taking the upper side beam as a rotating shaft, namely an inverted S shape; but if too weak, will produce the same effect as B-pillar collapse; the thickness of the section E is set to 2.0mm;
the starting point of the lower end of a section F of the B column structure is positioned at a position 35mm below the top of the B column, and the ending point of the upper end of the section F is positioned at the highest position of an upper boundary beam at the top of the B column; the thickness of the interval F was set to 1.7mm.
The TRB differential thick plate comprises a B-pillar structure, two B-pillar structures are arranged in the width direction of the plate in the same area up and down, and the arrangement directions of the two B-pillar structures are opposite.
The length direction of the plate is divided into A, B, C, D, E, F and G seven intervals in sequence from right to left, plate unequal thickness transition areas are arranged between every two adjacent intervals, the lengths of the plate unequal thickness transition areas A-B and the plate unequal thickness transition areas F-G are the same, the lengths of the plate unequal thickness transition areas B-C and the plate unequal thickness transition areas E-F are the same, and the lengths of the plate unequal thickness transition areas C-D and the plate unequal thickness transition areas D-E are the same; the B column structure on the upper part of the plate spans A, B, C, D, E and F six sections from right to left, the B column structure on the lower part of the plate spans B, C, D, E, F and G six sections from right to left, the center line of the section D of the B column structure on the upper part of the plate coincides with the center line of the section D of the B column structure on the lower part of the plate, the thicknesses of the section A and the section G are the same, the thicknesses of the section B and the section F are the same, the thicknesses of the section C and the section E are the same, the material thickness gradient curve of the plate is also symmetrical about the center line of the section D, and the arrangement ensures that two B column structures (left and right pieces) can be placed in the width direction of the TRB differential plate, and the material utilization rate is up to 65% or more.
The integrated door ring comprises an A column upper edge beam blanking piece, an A column blanking piece, a threshold blanking piece and a B column structure; one end of the B column structure is butted with one end of the blanking piece of the threshold, and is connected with the blanking piece of the threshold by laser splice welding; the other end of the B column structure is in butt joint with one end of the blanking piece of the upper boundary beam of the A column and is connected with the blanking piece of the upper boundary beam of the A column through laser splice welding; the other end of the blanking piece of the upper boundary beam of the column A is in butt joint with one end of the blanking piece of the column A and is connected through laser splice welding; the other end of the column A blanking piece is in butt joint with the other end of the threshold blanking piece and is connected through laser splice welding; the annular main body is formed by the upper side beam blanking sheet, the threshold blanking sheet and the lower side beam blanking sheet of the A column, the lower side beam blanking sheet of the B column are connected through laser splice welding, the door ring B column structure adopts a TRB differential thickness plate, the thickness change is flexible, the thickness requirement of the door ring on different positions of the B column can be accurately met, the B column is divided into strong and weak areas due to the arrangement of the partitions, the shape is good after collision, good protection is provided for members, the safety is improved, the same strength, rigidity and safety performance are ensured, structural members such as a B column door ring patch plate and a rear door hinge reinforcing plate are saved, the obvious weight and cost reduction effect is realized, and the plate differential thickness transition area is uniform transition, and stress concentration is avoided relative to the schemes such as laser splice welding; the plates are flexibly rolled, the thickness constant value of the material can be set according to the safety requirement, the welding process and the blanking and positioning processes of a plurality of plates are omitted relative to the patch scheme, and the production takt is improved.
The annular main body is formed by cold stamping or hot stamping.
The yield strength of the annular main body after hot stamping forming is 950-1200, and the tensile strength is more than or equal to 1500.
At present, the human engineering pursues smaller and smaller A column barrier angles, so that the section of an upper side beam of the A column is smaller and smaller, and the upper side beam region of the A column needs higher strength to resist the force transmitted in small offset collision and prevent the upper side beam of the A column from bending deformation, so that the thickness of a blanking piece of the upper side beam of the A column is 1.8mm; the impact force born by the A column blanking piece in the small offset collision process is particularly large, and because the section of the upper edge beam of the A column is smaller, the force transmitted from the shot gun (the connecting beam on the front wheel cover) in order to prevent most of the force from being transmitted to the upper edge beam of the A column during collision from causing the bending of the upper edge beam of the A column, the A column blanking piece needs to be weakened to absorb most of energy, and meanwhile, the A column blanking piece needs to have better ductility and energy absorption capacity in order to ensure that the A column blanking piece is not broken and the large-range welding spot of the seam allowance side is torn after collision, so that the thickness of the A column blanking piece is l.6mm, and the thickness of the threshold blanking piece is 1.4mm.
An automobile comprises the integrated door ring.
Advantageous effects
The application aims to ensure that the vehicle body can realize remarkable weight and cost reduction while meeting the safety strength; the door ring B column adopts a TRB differential thick plate, the thickness change is flexible, the thickness requirement of the door ring on different positions of the B column can be accurately met, structural members are saved to the greatest extent, and the obvious weight and cost reduction effect is realized.
Drawings
Fig. 1 is a schematic structural view of an integrated door ring according to the present application.
Fig. 2 is a schematic diagram of a splicing structure of blanking pieces of the present application.
FIG. 3 is a schematic diagram of the thickness distribution of the blanking sheet of the differential thickness plate.
In the figure:
1. a B column structure;
11. interval A;
12. interval B;
13. interval C;
14. interval D;
15. a section E;
16. a section F;
17. interval G;
111. the transition areas A-B of the plates with unequal thicknesses;
112. the transition areas B-C of different thicknesses of the plates;
113. the transition areas C-D of different thicknesses of the plates;
114. the transition areas D-E of different thicknesses of the plates;
115. the transition areas E-F of different thicknesses of the plates;
116. the transition areas F-G of different thicknesses of the plates;
2. blanking sheets of the side beams on the A column;
3. a column blanking piece;
4. a threshold blanking piece;
5. side impact barriers;
51. the side impact barrier directly impacts the area;
52. dummy R point;
6. a material thickness gradient curve.
Detailed Description
In order to make the technical problems solved, the technical scheme adopted and the technical effects achieved by the application more clear, the technical scheme of the application is further described below by a specific embodiment in combination with the attached drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the drawings related to the present application are shown.
In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixed or removable, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
Example 1
Referring to fig. 1-3, a B-pillar structure 1 is formed by rolling and blanking a TRB differential plate divided into A, B, C, D, E and F six sections 11, 12, 13, 14, 15, 16 in the length direction, wherein the thickness of the plate in each section is the same;
taking the center line of the section D14 as a symmetry axis, the length of the section C13 is the same as that of the section E15, and the length of the section B12 is the same as that of the section F16;
the thickness of the plate in each section is a fixed value, and the thickness value is 1.4mm, 1.7mm, 2.0mm or 2.35mm;
a plate unequal-thickness transition area is arranged between every two adjacent areas, and the length value of each plate unequal-thickness transition area is 100 times of the material thickness difference between every two adjacent areas; the material thickness gradient curve 6 is very gentle, and the maximum material thickness difference is 0.35mm, so that the non-uniform thickness transition area of the plate in the length direction is much smaller than six uniform thickness areas, and the matching stability is facilitated.
The plate non-uniform thickness transition zone comprises a plate non-uniform thickness transition zone A-B111, a plate non-uniform thickness transition zone B-C112, a plate non-uniform thickness transition zone C-D113, a plate non-uniform thickness transition zone D-E114 and a plate non-uniform thickness transition zone E-F115; the length of the plate unequal-thickness transition zone B-C112 is the same as that of the plate unequal-thickness transition zone E-F115, and the length of the plate unequal-thickness transition zone C-D113 is the same as that of the plate unequal-thickness transition zone D-E114.
Referring to FIG. 1, the principle of zoning will be explained below from the positional relationship with respect to the side impact barrier 5 of C-NCAP (China New vehicle evaluation protocol of China-New Car Assessment Program); each interval is called a starting point at the lowest along the Z axis and an ending point at the highest along the Z axis:
the starting point of the lower end of a section A11 of the B column structure 1 is the lower edge of a threshold, and the end point of the upper end of the section A11 is arranged 15mm above the lower edge of a side collision barrier direct collision zone 51; the thickness of the interval A11 is set to be 1.4mm;
the starting point of the lower end of a section B12 of the B column structure 1 is positioned 20mm above the lower edge of the side collision barrier direct impact area 51, and the end point of the upper end of the section B12 is positioned 70mm below the upper edge of the side collision barrier direct impact area 51; the entire length of zone B is covered by side impact barrier direct impact zone 51; the relation between the section and the dummy is that the section is positioned below the dummy R52 point and is not required to be too strong, but the section is also a fixed area of the lower hinge of the rear door, so that the section cannot be too weak, and the thickness of the section B12 is set to be 1.7mm;
the starting point of the lower end of the section C13 of the B column structure 1 is positioned 15mm below the upper edge of the side collision barrier direct impact area 51, and the ending point of the upper end of the section C13 is positioned 125mm above the upper edge of the side collision barrier direct impact area 51; the C area is positioned between the upper edge of the side collision barrier direct impact area 51 and the upper edge of the side collision barrier and covers the R52 point of the dummy, and the door sheath is provided with a large through hole in the area, so that strengthening treatment is required, and the thickness of the C13 area is set to be 2.0mm;
the starting point of the lower end of the section D14 of the B column structure 1 is positioned 70mm below the upper edge of the side collision barrier 5, and the ending point of the upper end of the section D14 is positioned 345mm above the upper edge of the side collision barrier 5; the thickness of the section D14 is set to 2.35mm;
the starting point of the lower end of the section E15 of the B column structure 1 is positioned 200mm below the top of the B column, and the ending point of the upper end of the section E15 is positioned 60mm below the top of the B column; the thickness of the section E15 is set to 2.0mm;
the starting point of the lower end of a section F16 of the B column structure 1 is positioned 35mm below the top of the B column, and the ending point of the upper end of the section F16 is positioned at the highest position of an upper boundary beam at the top of the B column; the thickness of the section F16 was set to 1.7mm.
Example 2
Referring to fig. 3, a TRB differential plate includes a B-pillar structure 1 on a plate, two B-pillar structures 1 are arranged vertically in the width direction of the plate in the same area, and the two B-pillar structures 1 are arranged in opposite directions.
The length direction of the plate is divided into seven sections A11, B12, C13, D14, E15, F16 and G17 from right to left, plate unequal thickness transition sections 111, 112, 113, 114, 115 and 116 are arranged between every two adjacent sections, the lengths of the plate unequal thickness transition sections A-B111 and the plate unequal thickness transition sections F-G116 are the same, the lengths of the plate unequal thickness transition sections B-C112 and the plate unequal thickness transition sections E-F115 are the same, and the lengths of the plate unequal thickness transition sections C-D113 and the plate unequal thickness transition sections D-E114 are the same; the B column structure 1 at the upper part of the plate spans A, B, C, D, E and F six sections from right to left, the B column structure 1 at the lower part of the plate spans B, C, D, E, F and G six sections from right to left, the center line of the section D14 of the B column structure 1 at the upper part of the plate coincides with the center line of the section D14 of the B column structure 1 at the lower part of the plate, the thicknesses of the section A11 and the section G17 are the same, the thicknesses of the section B12 and the section F16 are the same, and the thicknesses of the section C13 and the section E15 are the same.
Example 3
Referring to fig. 1-2, an integrated door ring comprises an a-pillar upper edge beam blanking sheet 2, an a-pillar blanking sheet 3, a threshold blanking sheet 4 and a B-pillar structure 1; one end of the B-pillar structure 1 is in butt joint with one end of the threshold blanking piece 4 and is connected through laser splice welding; the other end of the B column structure 1 is in butt joint with one end of the blanking piece 2 of the upper boundary beam of the A column and is connected through laser splice welding; the other end of the blanking piece 2 of the upper boundary beam of the column A is in butt joint with one end of the blanking piece 3 of the column A and is connected through laser splice welding; the other end of the A column blanking piece 3 is in butt joint with the other end of the threshold blanking piece 4 and is connected through laser splice welding; the A column upper edge beam blanking piece 2, the A column blanking piece 3, the threshold blanking piece 4 and the B column structure 1 which are connected through laser splice welding form an annular main body.
The annular main body is formed by hot stamping.
The annular body after hot stamping has a yield strength of 1100 and a tensile strength of 1700.
The thickness of the A column upper side beam blanking piece 2 is 1.8mm, the thickness of the A column blanking piece 3 is l.6mm, and the thickness of the threshold blanking piece 4 is 1.4mm.
Example 4
An automobile comprising the integrated door ring of embodiment 3.
While the application has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the application as defined by the appended claims.
Claims (10)
1. A B-pillar structure, characterized in that: the TRB differential thick plate comprises a TRB differential thick plate, wherein the TRB differential thick plate is divided into six sections in the length direction, namely a section A (11), a section B (12), a section C (13), a section D (14), a section E (15) and a section F (16), and the thickness of the plates in each section is the same;
the center line of the section D (14) is taken as a symmetry axis, the lengths of the section C (13) and the section E (15) are the same, and the lengths of the section B (12) and the section F (16) are the same;
the thickness of the plate in each interval is a fixed value;
and a plate unequal-thickness transition area is arranged between every two adjacent areas, and the length value of each plate unequal-thickness transition area is 90-110 times of the material thickness difference between every two adjacent areas.
2. A B-pillar structure according to claim 1, wherein: the plate non-uniform thickness transition zone comprises a plate non-uniform thickness transition zone A-B (111), a plate non-uniform thickness transition zone B-C (112), a plate non-uniform thickness transition zone C-D (113), a plate non-uniform thickness transition zone D-E (114) and a plate non-uniform thickness transition zone E-F (115); the length of the plate non-uniform thickness transition zone B-C (112) is the same as that of the plate non-uniform thickness transition zone E-F (115), and the length of the plate non-uniform thickness transition zone C-D (113) is the same as that of the plate non-uniform thickness transition zone D-E (114).
3. A B-pillar structure according to claim 1, wherein: the starting point of the lower end of a section A (11) of the B column structure (1) is the lower edge of a threshold, and the end point of the upper end of the section A (11) is arranged 15mm above the lower edge of a side collision barrier direct collision zone; the thickness of the section A (11) is set to 1.4mm;
the starting point of the lower end of a section B (12) of the B column structure (1) is positioned 20mm above the lower edge of the side impact barrier direct impact area, and the end point of the upper end of the section B (12) is positioned 70mm below the upper edge of the side impact barrier direct impact area; the thickness of the section B (12) is set to be 1.7mm;
the starting point of the lower end of a section C (13) of the B column structure (1) is positioned 15mm below the upper edge of the side impact barrier direct impact area, and the ending point of the upper end of the section C (13) is positioned 125mm above the upper edge of the side impact barrier direct impact area; the thickness of the section C (13) is set to 2.0mm;
the starting point of the lower end of a section D (14) of the B column structure (1) is positioned 70mm below the upper edge of the side collision barrier, and the ending point of the upper end of the section D (14) is positioned 345mm above the upper edge of the side collision barrier; the thickness of the section D (14) is set to 2.35mm;
the starting point of the lower end of a section E (15) of the B column structure (1) is positioned at a position 200mm below the top of the B column structure, and the ending point of the upper end of the section E (15) is positioned at a position 60mm below the top of the B column; the thickness of the section E (15) is set to 2.0mm;
the starting point of the lower end of a section F (16) of the B column structure (1) is positioned at a position 35mm below the top of the B column structure, and the end point of the upper end of the section F (16) is positioned at the highest position of an upper boundary beam at the top of the B column structure; the thickness of the section F (16) was set to 1.7mm.
4. The utility model provides a TRB differential plate which characterized in that: the board comprises the B-pillar structure (1) as set forth in any one of claims 1-3, two B-pillar structures (1) are arranged up and down in the width direction of the board in the same area, and the two B-pillar structures (1) are arranged in opposite directions.
5. The TRB differential plate according to claim 4, wherein: the length direction of the plate is divided into seven sections from right to left, namely a section A (11), a section B (12), a section C (13), a section D (14), a section E (15), a section F (16) and a section G (17), wherein plate unequal thickness transition areas are arranged between every two adjacent sections, the lengths of the plate unequal thickness transition areas A-B (111) and the plate unequal thickness transition areas F-G (116) are the same, the lengths of the plate unequal thickness transition areas B-C (112) and the plate unequal thickness transition areas E-F (115) are the same, and the lengths of the plate unequal thickness transition areas C-D (113) and the plate unequal thickness transition areas D-E (114) are the same; the B column structure (1) at the upper part of the plate spans A, B, C, D, E and F six sections from right to left, the B column structure (1) at the lower part of the plate spans B, C, D, E, F and G six sections from right to left, the center line of the section D (14) of the B column structure (1) at the upper part of the plate coincides with the center line of the section D (14) of the B column structure (1) at the lower part of the plate, the thicknesses of the section A (11) and the section G (17) are the same, the thicknesses of the section B (12) and the section F (16) are the same, and the thicknesses of the section C (13) and the section E (15) are the same.
6. Integral type door ring, its characterized in that: comprises an A-pillar upper edge beam blanking sheet (2), an A-pillar blanking sheet (3), a threshold blanking sheet (4) and a B-pillar structure (1) as claimed in claim 4 or 5; one end of the B column structure (1) is butted with one end of the threshold blanking piece (4) and is connected through laser splice welding; the other end of the B column structure (1) is in butt joint with one end of the blanking piece (2) of the upper boundary beam of the A column and is connected through laser splice welding; the other end of the blanking piece (2) of the upper side beam of the column A is in butt joint with one end of the blanking piece (3) of the column A and is connected through laser splice welding; the other end of the A column blanking piece (3) is in butt joint with the other end of the threshold blanking piece (4) and is connected through laser tailor-welding; a ring-shaped main body is formed by an A column upper edge beam blanking piece (2), an A column blanking piece (3), a threshold blanking piece (4) and a B column structure (1) which are connected through laser splice welding.
7. The integrated door ring of claim 6, wherein: the annular main body is formed by cold stamping or hot stamping.
8. The integrated door ring of claim 7, wherein: the yield strength of the annular main body after hot stamping forming is 950-1200, and the tensile strength is more than or equal to 1500.
9. The integrated door ring of claim 6, wherein: the thickness of the A column upper side beam blanking piece (2) is 1.8mm, the thickness of the A column blanking piece (3) is l.6mm, and the thickness of the threshold blanking piece (4) is 1.4mm.
10. An automobile, characterized in that: comprising an integrated door ring as claimed in any one of claims 6-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310696581.6A CN116812009A (en) | 2023-06-13 | 2023-06-13 | B-pillar structure, TRB differential plate, integrated door ring and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310696581.6A CN116812009A (en) | 2023-06-13 | 2023-06-13 | B-pillar structure, TRB differential plate, integrated door ring and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116812009A true CN116812009A (en) | 2023-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310696581.6A Pending CN116812009A (en) | 2023-06-13 | 2023-06-13 | B-pillar structure, TRB differential plate, integrated door ring and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116812009A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140008938A1 (en) * | 2011-03-23 | 2014-01-09 | Ford Global Technologies, Llc | Metal reinforcement for b-pillar |
| CN212195649U (en) * | 2020-04-27 | 2020-12-22 | 中国第一汽车股份有限公司 | Car B post and car |
| CN115257973A (en) * | 2022-08-12 | 2022-11-01 | 浙江吉利控股集团有限公司 | Side wall reinforcing plate and machining method thereof, side wall reinforcing plate assembly and vehicle |
| CN115401429A (en) * | 2022-10-14 | 2022-11-29 | 重庆至信实业集团有限公司 | Integrated molding method and mold for automobile door ring |
| DE102021117570A1 (en) * | 2021-07-07 | 2023-01-12 | Benteler Automobiltechnik Gmbh | Motor vehicle door ring system |
-
2023
- 2023-06-13 CN CN202310696581.6A patent/CN116812009A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140008938A1 (en) * | 2011-03-23 | 2014-01-09 | Ford Global Technologies, Llc | Metal reinforcement for b-pillar |
| CN212195649U (en) * | 2020-04-27 | 2020-12-22 | 中国第一汽车股份有限公司 | Car B post and car |
| DE102021117570A1 (en) * | 2021-07-07 | 2023-01-12 | Benteler Automobiltechnik Gmbh | Motor vehicle door ring system |
| CN115257973A (en) * | 2022-08-12 | 2022-11-01 | 浙江吉利控股集团有限公司 | Side wall reinforcing plate and machining method thereof, side wall reinforcing plate assembly and vehicle |
| CN115401429A (en) * | 2022-10-14 | 2022-11-29 | 重庆至信实业集团有限公司 | Integrated molding method and mold for automobile door ring |
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