CN112793402A - Anti-collision beam structure - Google Patents
Anti-collision beam structure Download PDFInfo
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- CN112793402A CN112793402A CN202110084473.4A CN202110084473A CN112793402A CN 112793402 A CN112793402 A CN 112793402A CN 202110084473 A CN202110084473 A CN 202110084473A CN 112793402 A CN112793402 A CN 112793402A
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- main body
- connecting plate
- beam structure
- connecting piece
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J5/00—Doors
- B60J5/04—Doors arranged at the vehicle sides
- B60J5/042—Reinforcement elements
- B60J5/0422—Elongated type elements, e.g. beams, cables, belts or wires
- B60J5/0438—Elongated type elements, e.g. beams, cables, belts or wires characterised by the type of elongated elements
- B60J5/0443—Beams
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J5/00—Doors
- B60J5/04—Doors arranged at the vehicle sides
- B60J5/042—Reinforcement elements
- B60J5/0422—Elongated type elements, e.g. beams, cables, belts or wires
- B60J5/0423—Elongated type elements, e.g. beams, cables, belts or wires characterised by position in the lower door structure
- B60J5/0429—Elongated type elements, e.g. beams, cables, belts or wires characterised by position in the lower door structure the elements being arranged diagonally
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J5/00—Doors
- B60J5/04—Doors arranged at the vehicle sides
- B60J5/042—Reinforcement elements
- B60J5/0422—Elongated type elements, e.g. beams, cables, belts or wires
- B60J5/0437—Elongated type elements, e.g. beams, cables, belts or wires characterised by the attachment means to the door, e.g. releasable attachment means
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- Mechanical Engineering (AREA)
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Abstract
In order to solve the technical problems that an anti-collision beam structure in the prior art is heavy and is not beneficial to vehicle light weight, the invention provides an anti-collision beam structure, which comprises: the anti-collision beam is made of carbon fiber composite materials and comprises a main body; the first connecting piece is made of alloy, is glued to the first end of the main body and is used for being connected with an inner plate of a side door of a vehicle; the second connecting piece, the material of second connecting piece is the alloy, and the second connecting piece glues with the second end of main part, and the second connecting piece is used for being connected with the side door inner panel of vehicle. The connection among the anti-collision beam, the first connecting piece and the second connecting piece is realized through the interlocking design on the geometric structure, the fiber continuity of the carbon fiber composite material is not damaged, the connection strength is high, the collision performance is improved, the durability is good, and the anti-collision beam is more mature and reliable.
Description
Technical Field
The invention relates to the field of vehicle structures, in particular to an anti-collision beam structure.
Background
At present, the sustainable development of the automobile industry faces three problems of oil consumption, environmental protection and safety, so that the adoption of the automobile lightweight technology can save resources and protect the environment, and the automobile is the development direction of future automobiles. The carbon fiber composite material has high strength and light weight, so that the carbon fiber composite material is more and more applied to automobiles, and automobile body materials are developed towards diversification directions of high-strength steel, aluminum alloy, carbon fiber composite materials and the like. For example, a tubular side door anti-collision beam made of a carbon fiber composite material replaces a traditional thermal forming anti-collision beam or an ultra-high strength steel anti-collision beam, the weight is reduced by about 35% on the premise of ensuring the safety and the rigidity of a vehicle body, and the lightweight effect is obvious.
The existing side door anti-collision beam is formed by hot stamping and is connected with a door inner plate by adopting a spot welding process; or the front and rear connecting plates are connected with the anti-collision beam through two protective weldings. Compared with carbon fiber composite materials, steel parts are heavy, and light weight of the whole automobile is not facilitated; if the anti-collision beam is changed into a tubular part made of carbon fiber composite material, the problem of difficult connection between the carbon fiber composite material pipe and a metal part needs to be solved, and the conventional connection between the carbon fiber composite material and the metal part uses self-piercing riveting, bolt connection and hot melting self-tapping screw connection (FDS for short); however, the FDS connection needs professional equipment, the investment of tooling equipment is large, the control requirement of process parameters is strict, the quality stability is poor, the side door anti-collision beam is a key stressed part during side collision, and the FDS connection part is easy to lose effectiveness during side collision, so that the side collision safety is influenced.
Therefore, it is necessary to provide a solution to the technical problem that the weight of the impact beam structure is heavy and the vehicle is not light in weight in the prior art.
Disclosure of Invention
The invention provides an anti-collision beam structure, which aims to solve the technical problems that the anti-collision beam structure in the prior art is heavy and is not beneficial to vehicle light weight.
The present invention provides an impact beam structure, including:
the anti-collision beam is made of carbon fiber composite materials and comprises a main body;
the first connecting piece is made of alloy, is glued to the first end of the main body and is used for being connected with an inner plate of a side door of a vehicle;
the second connecting piece, the material of second connecting piece is the alloy, the second connecting piece with the second end of main part splices, the second connecting piece be used for with the side door inner panel of vehicle be connected.
The first connecting piece comprises a first connecting plate and a second connecting plate which are connected, the first connecting plate is provided with a first concave part, the second connecting plate is provided with a second concave part, the first concave part and the second concave part are arranged oppositely, the first concave part and the second concave part are arranged around the first end of the main body, and the first concave part and the second concave part are both glued with the first end of the main body.
The invention provides a further improvement of the anti-collision beam structure, wherein the first end of the main body extends along the radial direction to form a first stop block, the first stop block abuts against one side of the first concave part far away from the second end of the main body, and the first stop block abuts against one side of the second concave part far away from the second end of the main body.
The anti-collision beam structure provided by the invention is further improved in that the first connecting plate is provided with an avoiding groove, and the first stop block is accommodated in the avoiding groove.
The anti-collision beam structure provided by the invention is further improved in that a gap is arranged between the first stop block and the avoidance groove, and the gap is not less than 2 mm.
In a further improvement of the impact beam structure provided by the present invention, the second connecting plate is welded to the first connecting plate by resistance spot welding.
The anti-collision beam structure provided by the invention is further improved in that the second connecting piece comprises a third connecting plate and a fourth connecting plate which are connected, the third connecting plate is provided with a third concave part, the fourth connecting plate is provided with a fourth concave part, the third concave part and the fourth concave part are oppositely arranged, the third concave part and the fourth concave part are arranged around the second end of the main body, and the third concave part and the fourth concave part are both glued with the second end of the main body.
The invention provides a further improvement of the impact beam structure, wherein the second end of the main body extends along the radial direction to form a second stop block, the second stop block abuts against one side of the third concave part far away from the first end of the main body, and the second stop block abuts against one side of the fourth concave part far away from the first end of the main body.
In a further improvement of the impact beam structure according to the present invention, the fourth connecting plate is welded to the third connecting plate by a protective weld.
The invention provides a further improvement of the structure of the anti-collision beam, the anti-collision beam comprises 12 carbon fiber layers, and the ply angles of the 12 carbon fiber layers in the direction from outside to inside are respectively +45 degrees, -90 degrees, +45 degrees and-45 degrees;
the inner surface of the carbon fiber layer positioned on the inner side, the outer surface of the carbon fiber layer positioned on the outer side and a resin layer are arranged between the adjacent carbon fiber layers in the direction from outside to inside.
The connection among the anti-collision beam, the first connecting piece and the second connecting piece is realized through the interlocking design on the geometric structure, the fiber continuity of the carbon fiber composite material is not damaged, the connection strength is high, the collision performance is improved, the durability is good, and the anti-collision beam is more mature and reliable; the invention can ensure that the structural adhesive between the carbon fiber composite material anti-collision beam and the metal only bears shearing force and is not subjected to stripping force, can exert the function of the structural adhesive to the maximum extent, and has higher connection strength.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of an impact beam structure provided by the present invention.
Fig. 2 is a schematic structural view of the impact beam of the present invention.
Fig. 3 is a schematic structural diagram of a first connecting plate according to the present invention.
Fig. 4 is a schematic structural view of a second connecting plate in the present invention.
Fig. 5 is a schematic structural view of a third connecting plate in the present invention.
Fig. 6 is a schematic structural view of a fourth connecting plate in the present invention.
Fig. 7 is a schematic view of a connection structure of the impact beam, the first connecting member and the second connecting member according to the present invention.
Fig. 8 is a schematic cross-sectional view a-a of fig. 7.
Fig. 9 is a schematic cross-sectional view of B-B in fig. 7.
Fig. 10 is a schematic cross-sectional view of C-C in fig. 7.
Fig. 11 is a schematic cross-sectional view of D-D in fig. 7.
Fig. 12 is a schematic view of a connection structure of the impact beam and the first connecting member according to the present invention.
Fig. 13 is a schematic view of a connection structure of the impact beam and the second connecting member according to the present invention.
Fig. 14 is a schematic structural view of an impact beam structure and a side door inner panel provided by the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The invention provides an anti-collision beam structure, which aims to solve the technical problems that the anti-collision beam structure in the prior art is heavy and is not beneficial to vehicle light weight.
Referring to fig. 1 to 14, the present embodiment provides an impact beam structure, including:
the anti-collision beam comprises an anti-collision beam 10, wherein the anti-collision beam 10 is made of a carbon fiber composite material, and the anti-collision beam 10 comprises a main body;
the first connecting piece is made of alloy, is glued to the first end of the main body and is used for being connected with an inner plate of a side door of a vehicle;
the second connecting piece, the material of second connecting piece is the alloy, and the second connecting piece glues with the second end of main part, and the second connecting piece is used for being connected with the side door inner panel of vehicle.
In this embodiment, the first connecting piece and the second connecting piece are made of iron-carbon alloy, preferably steel; the carbon fiber beam is used as the anti-collision beam 10, and the density of the carbon fiber composite material is only 1/5 of steel, so that the weight of the anti-collision beam 10 can be reduced, the weight can be reduced by more than 35%, and the weight can be reduced. Preferably, the first connecting piece and the second connecting piece can be connected to the inner plate of the side door in a resistance spot welding manner, so that the anti-collision beam 10 is connected to the inner plate of the side door through the first connecting piece and the second connecting piece without self-piercing riveting, bolting and hot melting self-tapping screw connection, and the connecting structure is simple and reliable. Carbon-fibre composite's intensity is higher than the hot forming steel, and from this, this embodiment can reduce the weight of anticollision roof beam 10 on the basis of guaranteeing structural strength, and whole car lightweight effect is showing. The body in this embodiment is cylindrical.
Further, first connecting piece is including the first connecting plate 21 and the second connecting plate 22 that are connected, and first connecting plate 21 is equipped with first depressed part 31, and second connecting plate 22 is equipped with second depressed part 32, and first depressed part 31 sets up with second depressed part 32 relatively, and first depressed part 31 and second depressed part 32 enclose to locate outside the first end of main part, and first depressed part 31 and second depressed part 32 all splice with the first end of main part.
In this embodiment, the first end of the main body is clamped and glued between the first recess 31 and the second recess 32, so as to achieve reliable connection between the main body and the first connecting member. The first connecting plate 21 and the second connecting plate 22 are both made of high-strength steel by stamping and are made of HC340/590 DP. The shapes of the first concave part 31 and the second concave part 32 are matched with the first end of the main body, the curvature radius of the first concave part 31 is 0.2mm larger than that of the main body, and the length of the first concave part 31 is 40mm-60 mm; the thickness of the second connecting plate 22 is 0.2mm-0.4mm thinner than that of the first connecting plate 21, preferably, the material thickness of the first connecting plate 21 is 1.2mm, and the material thickness of the second connecting plate 22 is 0.8 mm; the radius of curvature and the length of the second concave portion 32 are the same as those of the first concave portion 31.
Further, a first end of the main body extends radially to form a first stop block 11, the first stop block 11 abuts against a side of the first recess 31 away from the second end of the main body, and the first stop block 11 abuts against a side of the second recess 32 away from the second end of the main body. In the embodiment, the diameter of the first stop block 11 is larger than that of the main body at the middle part, and generally, the diameter of the first stop block 11 is larger than that of the main body by 6mm-8mm, so that the first stop block 11 can be stopped by the first concave part 31 and the second concave part 32 to prevent the impact beam 10 from moving axially.
Furthermore, the first connecting plate 21 is provided with an avoiding slot 40, and the first stopping block 11 is accommodated in the avoiding slot 40.
Further, a gap is formed between the first stop block 11 and the escape groove 40, and the gap is not less than 2 mm.
In this embodiment, the shape of the avoiding groove 40 is adapted to the first stopping block 11, and a gap of more than 2mm is ensured between the avoiding groove 40 and the first stopping block 11, so as to prevent interference during assembly.
Further, the second connecting plate 22 is welded to the first connecting plate 21 by resistance spot welding, and the number of spot welds between the first connecting plate 21 and the second connecting plate 22 is 4.
Furthermore, the second connecting piece comprises a third connecting plate 23 and a fourth connecting plate 24 which are connected, the third connecting plate 23 is provided with a third recessed portion 33, the fourth connecting plate 24 is provided with a fourth recessed portion 34, the third recessed portion 33 and the fourth recessed portion 34 are arranged oppositely, the third recessed portion 33 and the fourth recessed portion 34 are arranged around the second end of the main body, and the third recessed portion 33 and the fourth recessed portion 34 are both glued with the second end of the main body.
In this embodiment, the second end of the main body is clamped and glued between the third recess 33 and the fourth recess 34, so as to achieve reliable connection between the main body and the second connector. The third connecting plate 23 and the fourth connecting plate 24 are both made of high-strength steel by stamping and are made of HC340/590 DP. The shapes of the third concave part 33 and the fourth concave part 34 are matched with the second end of the main body, the curvature radius of the third concave part 33 is 0.2mm larger than that of the main body, and the length of the third concave part 33 is 60mm-80 mm; the thickness of the fourth connecting plate 24 is 0.2mm-0.4mm thinner than that of the third connecting plate 23, preferably, the thickness of the material of the third connecting plate 23 is 1.2mm, and the thickness of the fourth connecting plate 24 is 0.8 mm; the fourth recessed portion 34 has the same radius of curvature and length as the third recessed portion 33.
Further, a second end of the main body extends radially to form a second stop block 12, the second stop block 12 abuts against a side of the third recess 33 away from the first end of the main body, and the second stop block 12 abuts against a side of the fourth recess 34 away from the first end of the main body. In the embodiment, the diameter of the second stop block 12 is larger than that of the main body of the middle part, and generally, the diameter of the second stop block 12 is larger than that of the main body by 6mm-8mm, so that the second stop block 12 can be stopped by the third recessed portion 33 and the fourth recessed portion 34, and the impact beam 10 is prevented from moving axially.
Further, the fourth connecting plate 24 is welded to the third connecting plate 23 by means of a shielded welding, with 6 sections of 3 sections per side, each 15mm in length, between the third connecting plate 23 and the fourth connecting plate 24.
Specifically, the diameter of the main body of the impact beam 10 is 25mm, a first end of the main body extends along the radial direction of the main body or the direction perpendicular to the center line to form a first stop block 11, a second end of the main body extends along the radial direction of the main body or the direction perpendicular to the center line to form a second stop block 12, and the diameters of the first stop block 11 and the second stop block 12 of the impact beam 10 are both 32 mm.
Further, the impact beam 10 includes 12 carbon fiber layers, and the ply angles of the 12 carbon fiber layers in the outside-in direction are +45 °, -45 °, 90 °, +45 °, -45 °, and-45 °; the inner surface of the carbon fiber layer positioned on the inner side, the outer surface of the carbon fiber layer positioned on the outer side and a resin layer are arranged between the adjacent carbon fiber layers in the direction from outside to inside. The thickness of the impact beam 10 in this embodiment is 4mm, 12 carbon fiber layers are adopted, the layer laying mode is +45 °, -45 °, 90 °, +45 ° and-45 °, the thickness of the single-layer carbon fiber layer is 0.3mm, the total thickness of the 12 carbon fiber layer is 3.6mm, the thickness of the single-layer resin layer is about 0.03mm, and the total thickness of the 13 resin layers is about 0.39 mm.
The material of the resin layer in the embodiment is high Tg (glass transition temperature) resin, specifically, the Tg of the resin layer in the embodiment is more than or equal to 185 ℃; the anti-collision beam 10 is required to be baked during the process of manufacturing, the baking temperature is high, and the high Tg resin can be used for avoiding softening and deformation during the baking process; from this, the anticollision roof beam structure that this embodiment provided can be adapted to the operating condition in traditional paint shop in the manufacture process, needn't carry out adaptability transformation or upgrading to traditional paint shop, is favorable to controlling manufacturing cost.
First connecting plate 21 and second connecting plate 22 have formed a ring after the welding, third connecting plate 23 and fourth connecting plate 24 have formed a ring after the welding, can restrict the radial displacement of carbon-fibre composite anticollision roof beam 10, the ring diameter of the upper and lower connecting plate of anticollision roof beam 10 is less than the diameter of first backstop 11 and second backstop 12, consequently, can restrict the axial displacement of carbon-fibre anticollision roof beam 10, and, scribble the structure between anticollision roof beam 10 and each connecting plate and glue, can restrict the rotation of carbon-fibre composite anticollision roof beam 10. Therefore, the mechanical connection among the anti-collision beam 10, the first connecting piece and the second connecting piece is realized through the geometrical characteristics of the anti-collision beam, the first connecting piece and the second connecting piece, the connection scheme is reliable, and the connection strength is high.
The carbon fiber composite material anti-collision beam 10 is a closed cavity and cannot be connected by self-piercing riveting and bolts; if adopt hot melt self tapping spiro union (FDS for short) to connect, nevertheless because FDS connects needs professional equipment, incompatible with current production line, the frock input is big, and technological parameter control requires strictly, can lead to product quality poor stability to side door anticollision roof beam 10 is the key atress part when bumping laterally, and FDS can destroy fibrous continuity, and FDS connection part takes place inefficacy easily during bumping laterally, influences the side and bumps safety. At present, the FDS technology between metal and carbon fiber composite materials is difficult, the technology is not mature enough, and the quality control is difficult.
Compared with hot melting self-tapping screw connection, the invention realizes the connection among the anti-collision beam 10, the first connecting piece and the second connecting piece through the interlocking design on the geometric structure, does not damage the fiber continuity of the carbon fiber composite material, has high connection strength, improves the collision performance, does not have the stress concentration problem of FDS, has good durability and is more mature and reliable; the method has the advantages that the method does not need to add FDS connecting equipment in a welding workshop, does not need to modify a production line and invest new assets, is completely compatible with the traditional production line, and is favorable for popularization and application of the carbon fiber composite material; the invention can ensure that the structural adhesive between the carbon fiber composite material anti-collision beam 10 and the metal only bears shearing force and is not subjected to stripping force, can exert the function of the structural adhesive to the maximum extent, and has higher connection strength.
The following provides a manufacturing method of an impact beam structure for manufacturing the impact beam structure in the present embodiment, the method including:
determining structural parameters of the impact beam 10;
adjusting the structure of the core mold according to the structural parameters;
carrying out three-dimensional weaving on the core mold by using carbon fibers according to the structural parameters to obtain a pre-woven piece;
taking out the core mold in the pre-woven piece and obtaining a prefabricated body;
placing the prefabricated body in a mould, and injecting epoxy resin into the mould;
carrying out pressurization and heat preservation curing treatment on the prefabricated body in the mold to obtain a cured part;
trimming the solidified piece to obtain an anti-collision beam 10;
coating structural adhesive on the first concave part 31 of the first connecting plate 21, the second concave part 32 of the second connecting plate 22, the third concave part 33 of the third connecting plate 23 and the fourth concave part 34 of the fourth connecting plate 24, wherein the thickness of the structural adhesive is 0.2 mm;
the first concave part 31 and the second concave part 32 are buckled outside the first end of the main body and fixed by a clamp, and the third concave part 33 and the fourth concave part 34 are buckled outside the second end of the main body and fixed by a clamp;
the first connecting plate 21 and the second connecting plate 22 are welded, and the third connecting plate 23 and the fourth connecting plate 24 are welded.
The carbon fiber composite material anti-collision beam 10 is formed by three-dimensional weaving, T700-grade carbon fibers are selected as a raw material of a prefabricated body, a Hangao Max5 resin system is selected as a curing resin, and a sand core is selected for molding as a mold core; the structural parameters of the impact beam 10 include thickness, length, number of carbon fiber layers, thickness of carbon fiber layers, number of resin layers, thickness of resin layers, and the like. The core mold form can be a sand core mold or an air bag mold and other core mold forms easy to demould; completing pre-knitting by controlling knitting parameters of a three-dimensional knitting machine; if a sand core mold is selected, the woven preform can be put into water to dissolve the sand core mold and obtain a preform for curing, and if an air bag mold is selected, the air bag mold can be directly taken out; putting the prefabricated body into a preheated HP-RTM mold, injecting high Tg epoxy resin, pressurizing, preserving heat and curing; obtaining a solidified piece after the solidification is finished; and obtaining a finished product after post-treatment such as trimming.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An impact beam structure, comprising:
the anti-collision beam is made of carbon fiber composite materials and comprises a main body (10);
the first connecting piece is made of alloy, is glued to the first end of the main body (10), and is used for being connected with a side door inner plate (60) of a vehicle;
the second connecting piece, the material of second connecting piece is the alloy, the second connecting piece with the second end of main part (10) bonds, the second connecting piece be used for with the side door inner panel (60) of vehicle be connected.
2. An impact beam structure according to claim 1, wherein said first connecting member comprises a first connecting plate (21) and a second connecting plate (22) connected to each other, said first connecting plate (21) being provided with a first recess (31), said second connecting plate (22) being provided with a second recess (32), said first recess (31) being arranged opposite to said second recess (32), said first recess (31) and said second recess (32) being arranged around said first end of said main body (10), said first recess (31) and said second recess (32) being glued to said first end of said main body (10).
3. An impact beam structure according to claim 2, wherein the first end of the main body (10) extends radially to form a first stop block (11), the first stop block (11) abuts against a side of the first recess (31) remote from the second end of the main body (10), and the first stop block (11) abuts against a side of the second recess (32) remote from the second end of the main body (10).
4. An impact beam structure according to claim 3, characterized in that said first connection plate (21) is provided with an escape slot (40), said first stop block (11) being housed in said escape slot (40).
5. An impact beam structure according to claim 4, characterized in that a gap is provided between said first stop block (11) and said avoidance groove (40), said gap being not less than 2 mm.
6. An impact beam structure according to claim 2, wherein said second connecting plate (22) is welded to said first connecting plate (21) by resistance spot welding.
7. An impact beam structure according to claim 2, wherein the second connecting member comprises a third connecting plate (23) and a fourth connecting plate (24) connected to each other, the third connecting plate (23) is provided with a third recess (33), the fourth connecting plate (24) is provided with a fourth recess (34), the third recess (33) and the fourth recess (34) are oppositely arranged, the third recess (33) and the fourth recess (34) are enclosed outside the second end of the main body (10), and the third recess (33) and the fourth recess (34) are both glued to the second end of the main body (10).
8. An impact beam structure according to claim 7, wherein the second end of the main body (10) extends radially to form a second stop block (12), the second stop block (12) abutting against a side of the third recess (33) remote from the first end of the main body (10), the second stop block (12) abutting against a side of the fourth recess (34) remote from the first end of the main body (10).
9. An impact beam structure according to claim 7, characterized in that said fourth web (24) is welded to said third web (23) by means of a shielded welding.
10. An impact beam structure according to claim 1, wherein said impact beam comprises 12 carbon fiber layers, and ply angles of 12 said carbon fiber layers in an outside-in direction are +45 °, -45 °, 90 °, +45 °, and-45 °, respectively;
the inner surface of the carbon fiber layer positioned on the inner side, the outer surface of the carbon fiber layer positioned on the outer side and a resin layer are arranged between the adjacent carbon fiber layers in the direction from outside to inside.
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|---|---|---|---|---|
| KR20030088921A (en) * | 2002-05-15 | 2003-11-21 | 현대자동차주식회사 | Door impact beam mounting structure of vehicle |
| JP2015182484A (en) * | 2014-03-20 | 2015-10-22 | ダイハツ工業株式会社 | Door structure for cab-over type vehicle |
| CN205273383U (en) * | 2015-12-28 | 2016-06-01 | 浙江龙纪汽车零部件股份有限公司 | Anti -collision beam for automobile door |
| JP2017149406A (en) * | 2016-02-19 | 2017-08-31 | 株式会社三五 | Vehicle door impact beam |
| CN106696654A (en) * | 2017-03-10 | 2017-05-24 | 吉林大学 | Carbon fiber reinforced composite vehicle door anti-collision beam |
| CN209870054U (en) * | 2019-02-22 | 2019-12-31 | 中国第一汽车股份有限公司 | Modular carbon fiber door anticollision roof beam |
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| CN112793402B (en) | 2023-06-27 |
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