CN109455229B - Fiber reinforced composite reinforcing beam and vehicle with same - Google Patents

Fiber reinforced composite reinforcing beam and vehicle with same Download PDF

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Publication number
CN109455229B
CN109455229B CN201811511639.0A CN201811511639A CN109455229B CN 109455229 B CN109455229 B CN 109455229B CN 201811511639 A CN201811511639 A CN 201811511639A CN 109455229 B CN109455229 B CN 109455229B
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China
Prior art keywords
reinforced composite
glue
fiber reinforced
pillar
wall
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CN201811511639.0A
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CN109455229A (en
Inventor
杨宇威
马赛
田宇黎
姜熙宇
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Beijing Electric Vehicle Co Ltd
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Beijing Electric Vehicle Co Ltd
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Priority to CN201811511639.0A priority Critical patent/CN109455229B/en
Publication of CN109455229A publication Critical patent/CN109455229A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D25/00Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/02Side panels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D25/00Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/04Door pillars ; windshield pillars
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D27/00Connections between superstructure or understructure sub-units
    • B62D27/02Connections between superstructure or understructure sub-units rigid
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D27/00Connections between superstructure or understructure sub-units
    • B62D27/02Connections between superstructure or understructure sub-units rigid
    • B62D27/023Assembly of structural joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D27/00Connections between superstructure or understructure sub-units
    • B62D27/02Connections between superstructure or understructure sub-units rigid
    • B62D27/026Connections by glue bonding

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

The invention discloses a fiber reinforced composite material reinforcing beam and a vehicle with the same. The fiber reinforced composite reinforcing beam includes: the reinforcing beam comprises a reinforcing beam body and fixing sections arranged at two ends of the reinforcing beam body, wherein an adhesive bonding area is formed on each fixing section, and at least one end of the adhesive bonding area is provided with an adhesive blocking structure. According to the fiber reinforced composite material reinforcing beam, the glue blocking structure is arranged at the end part of the glue joint area, so that the glue joint area can be sealed, the glue is prevented from leaking, and the glue joint firmness of the fiber reinforced composite material reinforcing beam and surrounding parts is improved.

Description

Fiber reinforced composite reinforcing beam and vehicle with same
Technical Field
The invention relates to the field of automobiles, in particular to a fiber reinforced composite material reinforcing beam and a vehicle with the same.
Background
On the premise of ensuring the strength and the rigidity of the vehicle body, the vehicle is lightened to the greatest extent, the energy consumption of the vehicle is reduced, the energy is saved, the side wall assembly of the vehicle comprises a plurality of parts, and the vehicle is enabled to acquire better performance and lightweight characteristics by reasonably designing the structure, the manufacturing process and the assembling process of the side wall assembly of each part, so that the side wall assembly becomes one of the important points of researches of a plurality of vehicle manufacturers.
Disclosure of Invention
The present invention aims to solve, at least to some extent, one of the above technical problems in the prior art. Therefore, the invention provides the fiber reinforced composite material reinforcing beam, which can realize the light weight design of the vehicle on the premise of ensuring the strength and the rigidity of the vehicle body.
The invention also provides a vehicle with the fiber reinforced composite material reinforcing beam.
The fiber reinforced composite reinforcing beam according to the embodiment of the invention comprises: the reinforcing beam comprises a reinforcing beam body and fixing sections arranged at two ends of the reinforcing beam body, wherein an adhesive bonding area is formed on each fixing section, and at least one end of the adhesive bonding area is provided with an adhesive blocking structure.
According to the fiber reinforced composite material reinforcing beam provided by the embodiment of the invention, the glue blocking structure is arranged at the end part of the glue joint area, so that the glue joint area can be sealed, the glue is prevented from leaking, and the glue joint firmness of the fiber reinforced composite material reinforcing beam and surrounding parts is improved.
According to some embodiments of the invention, the glue barrier structure comprises: and the edge blocking ribs are arranged on the outer surface of the fixed section in a convex mode and are used for limiting the position of the cementing area.
According to some embodiments of the invention, both ends of the glue joint area are provided with the edge bead.
According to some embodiments of the invention, the edge bead is integrally formed with the fixed segment.
According to some embodiments of the invention, the edge bead is an annular boss.
According to some embodiments of the invention, the glue blocking structure further comprises: the glue blocking ring is arranged on one side, far away from the gluing area, of the edge blocking rib, and the glue blocking ring and the edge blocking rib form a double-layer glue blocking structure.
According to some embodiments of the invention, the glue barrier ring is a thermal expansion glue barrier ring.
According to some embodiments of the invention, the glue collar has an expanded state such that an outer diameter of the glue collar is greater than an outer diameter of the edge bead, thereby sealing an end of the glue area.
According to some embodiments of the invention, the glue blocking ring is adhered and fixed to the fixing section.
According to some embodiments of the invention, each of the glue blocking rings has a width of 5mm-15mm and a thickness of 0.5mm-5mm.
According to some embodiments of the invention, the expansion ratio of the material of the glue blocking ring is 2-10 times.
According to some embodiments of the invention, the rubber blocking ring is a rubber-foaming agent mixed material rubber blocking ring or a plastic blocking ring.
According to some embodiments of the invention, the glue joint region is internally provided with at least one gap control structure.
According to another embodiment of the invention, the vehicle comprises the fiber reinforced composite material reinforcing beam, and the fiber reinforced composite material reinforcing beam is arranged in a side wall cavity of a side wall of the vehicle.
Drawings
FIG. 1 is an exploded schematic view of a side wall assembly;
FIG. 2 is an assembled schematic view of a side gusset reinforcement structure;
FIG. 3 is a schematic view of a side body inner panel, side body outer panel, side body cavity;
FIG. 4 is a schematic illustration of a fiber reinforced composite reinforcement beam;
FIG. 5 is an enlarged schematic view of a portion of FIG. 4 at A;
FIG. 6 is an enlarged schematic view of a portion of FIG. 4 at B;
FIG. 7 is a schematic view of an A-pillar connection;
FIG. 8 is a schematic cross-sectional view of an A-pillar attachment, a side inner panel, and a side outer panel;
FIG. 9 is a schematic cross-sectional view of an A-pillar tie, a side inner panel, a side outer panel, a fiber reinforced composite reinforcement beam;
FIG. 10 is a schematic illustration of a B-pillar reinforcement panel, side body inner panel, and fiber reinforced composite reinforcement beam;
FIG. 11 is a schematic cross-sectional view of a B-pillar reinforcement panel, a side body inner panel, and a side body outer panel;
FIG. 12 is a schematic cross-sectional view of a B-pillar reinforcement panel, a side inner panel, a side outer panel, a fiber reinforced composite reinforcement beam;
FIG. 13 is an assembled schematic view of a C-pillar reinforcement panel, side body inner panel, and fiber reinforced composite reinforcement beam;
FIG. 14 is a schematic cross-sectional view of a C-pillar reinforcement panel, a side body inner panel, and a side body outer panel;
FIG. 15 is a schematic cross-sectional view of a C-pillar reinforcement panel, a side inner panel, a side outer panel, a fiber reinforced composite reinforcement beam;
FIG. 16 is a schematic cross-sectional view of a fiber reinforced composite reinforcement beam, a side body inner panel, and a side body outer panel between the A and B pillars.
Reference numerals:
side wall assembly 1000, side wall inner plate 1001, side wall outer plate 1002, side wall cavity 1003, first sleeve 1004, second sleeve 1005, beam accommodation space 1006, exhaust hole 1008, auxiliary fixing position 1009;
A column a connector (first connector) 100, an a upper wall 101, an a receiving groove bottom wall 102, an a lower wall 103, an a receiving groove wall 104, an a lower body portion 105, an a first connecting portion 106, an a second connecting portion 107, an a positioning hole 108, a first plate portion 109, a second plate portion 110, and a third plate portion 111;
A B pillar reinforcement plate (second reinforcement plate) 200, a B-site upper wall 201, a B-site accommodation groove bottom wall 202, a B-site lower wall 203, a B-site accommodation groove wall 204, a B-site second body portion 205, a B-site positioning hole 206, a B-site first connecting portion 207, a front flange 208, a rear flange 209;
A C pillar reinforcement plate (first reinforcement plate) 300, a C upper wall 301, a C receiving groove bottom wall 302, a C lower wall 303, a C receiving groove wall 304, a C rear body portion 305, a C first connecting portion 306, a C second connecting portion 307, a C positioning hole 308;
The fiber reinforced composite material reinforcing beam 400, a reinforcing beam body 401, a fixed section 402, a cementing area 403, edge retaining ribs (annular bosses) 404, bosses (circular bosses) 405, rivet holes 406, retaining rings 407, a first reinforcing beam section 408, a second reinforcing beam section 409, a first beam surface 410, a second beam surface 411, a third beam surface 412, a fourth beam surface 413 and a retaining structure 414; side gusset reinforcement structure 500.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present invention 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 invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may communicate with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Side wall assembly 1000 in accordance with an embodiment of the present invention is described in detail below in conjunction with fig. 1-16.
Referring to fig. 1-2, a side wall assembly 1000 according to an embodiment of the present invention includes: the side wall reinforcement 500 is disposed inside the side wall to increase the strength and rigidity of the side wall, thereby improving the overall strength and rigidity of the vehicle body.
Specifically, referring to fig. 1 and 3, the side wall includes: the side body inner plate 1001 and the side body outer plate 1002 form a side body cavity 1003 between the side body inner plate 1001 and the side body outer plate 1002, in other words, the side body cavity 1003 is positioned between the side body inner plate 1001 and the side body outer plate 1002, the side body cavity 1003 provides a deformation space for the side body, and when the side body is collided, the side body can deform towards the side body cavity 1003 direction, so that a part of collision energy is absorbed, and the collision energy transferred to passengers in the vehicle is reduced.
Referring to fig. 1 to 3, side gusset reinforcement 500 includes: the fiber reinforced composite material reinforcing beam 400, the first connecting piece 100 and the first reinforcing plate 300 are arranged in the side wall cavity 1003, the first connecting piece 100 and the first reinforcing plate 300 are fixed in the side wall cavity 1003, and the first connecting piece 100 and the first reinforcing plate 300 are arranged on the side wall inner plate 1001 and/or the side wall outer plate 1002 and used for fixing the fiber reinforced composite material reinforcing beam 400.
That is, the first tie 100 and the first gusset 300 may be fixed to only the side inner panel 1001, may be fixed to only the side outer panel 1002, or may be fixed to both the side inner panel 1001 and the side outer panel 1002. The fiber reinforced composite reinforcement beam 400 is secured within the side wall cavity 1003 by the first connector 100, the first reinforcement panel 300.
In the embodiment of the present invention, the first connector 100 is an a-pillar connector, and the first reinforcing plate 300 is a C-pillar reinforcing plate, however, in some embodiments, not shown, the first connector 100 and the first reinforcing plate 300 may be other parts. The first connector 100 is disposed at the vehicle a pillar, the first reinforcement plate 300 is disposed at the vehicle C pillar, and the first connector 100 and the first reinforcement plate 300 are separated. The first connector 100 is used to connect the fiber reinforced composite reinforcement beam 400 with the a-pillar, and the first reinforcement plate 300 is used to connect the fiber reinforced composite reinforcement beam 400 with the C-pillar.
The fiber-reinforced composite reinforcement beam 400 has a relatively low density without significantly increasing the weight of the vehicle body.
According to the side wall assembly 1000 disclosed by the embodiment of the invention, the strength and the rigidity of the side wall can be obviously increased by adding the side wall reinforcing piece 500 in the side wall, so that the overall strength and the rigidity of the vehicle are improved, and the collision performance of the vehicle is improved. In addition, the fiber reinforced composite material reinforcing beam 400 is adopted, so that the strength and the rigidity of the vehicle are improved, the weight of the vehicle is not increased remarkably, and the lightweight design of the vehicle is facilitated.
Referring to fig. 1-3 and 7-9, the first connector 100 (a pillar connector) is disposed in the side wall cavity 1003, the first connector 100 is disposed at the first end of the fiber reinforced composite material reinforcing beam 400, a first sleeve 1004 is formed between the first connector 100 and the cavity sidewall of the side wall cavity 1003, that is, a first sleeve 1004 is formed between the first connector 100 and the side wall inner panel 1001, and the first sleeve 1004 is used for accommodating the first end of the fiber reinforced composite material reinforcing beam 400.
Further, a glue joint area 403 at a is formed between the outer surface of the first end of the fiber reinforced composite reinforcement beam 400 and the inner wall of the first sleeve 1004. The adhesive is adapted to be injected into the glue area 403, whereby the glue fixing of the first end of the fiber reinforced composite reinforcement beam 400 to the first sleeve 1004 is completed, i.e. the indirect connection between the fiber reinforced composite reinforcement beam 400 and the a-pillar is completed.
Referring to fig. 1-3 and 13-15, the first reinforcing plate 300 (C-pillar reinforcing plate) is disposed in the side wall cavity 1003, the first reinforcing plate 300 is disposed at the second end of the fiber reinforced composite reinforcing beam 400, a second sleeve 1005 is formed between the first reinforcing plate 300 and the cavity sidewall, that is, a second sleeve 1005 is formed between the first reinforcing plate 300 and the side wall inner panel 1001, and the second sleeve 1005 is used for accommodating the second end of the fiber reinforced composite reinforcing beam 400.
Further, referring to fig. 9 and 15, a glue joint region 403 at C is formed between the outer surface of the second end of the fiber reinforced composite reinforcement beam 400 and the inner wall of the second sleeve 1005. The adhesive is adapted to be injected into the glue area 403, whereby the glue fastening of the second end of the fiber reinforced composite reinforcement beam 400 to the second sleeve 1005 is completed, i.e. the indirect connection between the fiber reinforced composite reinforcement beam 400 and the C-pillar is completed.
In the description of the present invention, the first end of the fiber-reinforced composite reinforcing beam 400 refers to the front end of the fiber-reinforced composite reinforcing beam 400, and the second end of the fiber-reinforced composite reinforcing beam 400 refers to the rear end of the fiber-reinforced composite reinforcing beam 400.
The adhesive is injected into the adhesive bonding areas 403 at the A and the C, so that the connection between the fiber reinforced composite material reinforcing beam 400 and the corresponding inner wall of the sleeve can be realized, and in addition, the adhesive bonding areas 403 at the A and the C are all in the shape of a circular column, so that the adhesive bonding area is increased compared with the traditional single-sided adhesive bonding mode, and the improvement of adhesive bonding performance is facilitated.
The sleeve connecting structure and the cementing mode of the invention can realize the connection of the fiber reinforced composite material reinforcing beam 400 and the sheet metal parts, and the corresponding position of the fiber reinforced composite material reinforcing beam 400 is not required to be perforated because the composite material is very sensitive to defects and the perforating on the composite material member is very unfavorable to the member performance.
Referring to fig. 1-3 and 10-12, side wall assembly 1000 further includes: and the second reinforcing plate 200, the second reinforcing plate 200 is arranged in the side wall cavity 1003, the second reinforcing plate 200 is arranged on the side wall inner plate 1001 and/or the side wall outer plate 1002, the second reinforcing plate 200 is positioned between the first connecting piece 100 and the first reinforcing plate 300 and forms a beam accommodating space 1006 with the side wall inner plate 1001, and the beam accommodating space 1006 accommodates one section of the fiber reinforced composite material reinforcing beam 400.
The fiber reinforced composite material reinforcing beam 400 is fixed to the second reinforcing plate 200 by gluing and/or riveting, thereby completing the fixation of the middle portion of the fiber reinforced composite material reinforcing beam 400 to the beam receiving space 1006. That is, the fiber reinforced composite reinforcing beam 400 and the second reinforcing plate 200 may be fixed by gluing, may be fixed by riveting, and may be doubly fixed by gluing and riveting.
In the embodiment of the present invention, the second reinforcing plate 200 is exemplified as a B-pillar reinforcing plate. The second reinforcement plate 200 is disposed at the B-pillar of the vehicle, and the second reinforcement plate 200 is used to connect the fiber reinforced composite reinforcement beam 400 with the B-pillar, the first connector 100, the second reinforcement plate 200, and the first reinforcement plate 300 are sequentially arranged in the front-rear direction of the vehicle, and the first connector 100, the second reinforcement plate 200, and the first reinforcement plate 300 are spaced apart from each other.
The first connector 100, the second reinforcement panel 200, and the first reinforcement panel 300 are provided as part of the side wall reinforcement structure 500, provide rigidity and strength to the side wall assembly 1000, and transmit forces during a crash to the fiber reinforced composite reinforcement beam 400. By securing the fiber reinforced composite reinforcing beam 400 to the first connector 100, the second reinforcing panel 200, and the first reinforcing panel 300, the rigidity and strength of the side wall assembly 1000 can be significantly increased.
Referring to fig. 4-5, the edge of the glue joint region 403 has edge dams 404, the edge dams 404 being arranged in a convex manner on the outer surface of the fiber reinforced composite reinforcement beam 400, and the edge dams 404 being used to define the position of the glue joint region 403. The edge bead 404 may seal the glue area 403, thereby limiting the amount of glue injected into the glue area 403.
Specifically, edge dams 404 are located at both ends of the glue area 403 to ensure that the glue is confined to the interior of the glue area 403. The edge barrier ribs 404 realize physical barrier to the adhesive, prevent the adhesive from leaking outside the bonding area 403 beyond the edge barrier ribs 404, and ensure the filling amount of the adhesive in the bonding area 403.
Optionally, the edge bead 404 is an annular boss, thereby achieving a full turn of blocking of the adhesive by the edge bead 404.
In addition, the glue line length of the glue line region 403 is defined between the edge ribs 404 at both ends of each glue line region 403, and the glue line length of the glue line region 403 can be changed by changing the position of the edge ribs 404 on the fiber reinforced composite reinforcing beam 400. The longer the distance between the two edge ribs 404, the longer the glue line length of the glue joint area 403, which is beneficial to increase the connection firmness between the fiber reinforced composite material reinforcing beam 400 and the corresponding inner wall of the sleeve.
Optionally, the edge rib 404 and the fiber reinforced composite material reinforcing beam 400 are integrally formed, so that assembly time of the fiber reinforced composite material reinforcing beam 400 is reduced, and the relative positions of the edge rib 404 and the fiber reinforced composite material reinforcing beam 400 are fixed, so that a certain length of the gluing area 403 is ensured, and gluing requirements are met. When the fiber reinforced composite material reinforcing beam 400 is manufactured, the edge ribs 404 and the bosses 405 can be integrated with the main body part of the fiber reinforced composite material reinforcing beam 400 through enrichment of resin at corresponding positions of the mold, so that the subsequent assembly procedures of the fiber reinforced composite material reinforcing beam 400 can be reduced, and the assembly working hours can be saved.
In other embodiments, the edge dams 404 may be adhesively secured to the fiber reinforced composite reinforcement beam 400 or otherwise secured to the fiber reinforced composite reinforcement beam 400. For example, when manufacturing the fiber reinforced composite material reinforcing beam 400, the edge rib 404 can be integrally formed with the main body portion of the fiber reinforced composite material reinforcing beam 400 through enrichment of resin at the corresponding position of the mold, so that the subsequent assembly process of the fiber reinforced composite material reinforcing beam 400 can be reduced, and the assembly working hour can be saved.
Referring to fig. 5, the adhesive bonding region 403 is provided with an adhesive blocking ring 407 whose form can be changed by expansion.
Further, the glue blocking ring 407 is also in a ring structure, the glue blocking ring 407 is arranged on one side, far away from the glue bonding area 403, of the edge blocking rib 404, and the glue blocking ring 407 and the edge blocking rib 404 form a double-layer glue blocking structure, so that the glue blocking effect can be enhanced, and the glue in the glue bonding area 403 is prevented from leaking out. In other words, when a small amount of adhesive passes over the edge rib 404 from the inside of the glue joint region 403 to the outside due to low manufacturing accuracy, the adhesive blocking ring 407 can perform a second layer of physical blocking on the adhesive, so as to prevent the adhesive from leaking to the outside of the adhesive blocking ring 407.
The glue blocking ring 407 has an expanded state, so that the outer diameter of the glue blocking ring 407 is larger than the outer diameter of the edge blocking rib 404, thereby sealing the end of the glue joint area 403, preventing the leakage of the adhesive and controlling the injection amount of the adhesive.
Specifically, the glue blocking ring 407 is a thermal expansion glue blocking ring. When the glue blocking ring 407 is baked at a high temperature, the glue blocking ring 407 is heated to expand, so that the volume is enlarged, the glue blocking ring 407 is better attached to the inner wall of the corresponding sleeve, the edge blocking ribs 404 are matched with the glue blocking ring 407 to seal the end part of the glue joint area 403, and a sealed space is provided for injecting the adhesive. By utilizing the self-expansion performance of the glue blocking ring 407, the glue blocking ring is only required to be cut into simple sheets and stuck to two sides of the glue joint area 403, and after expansion, the glue blocking ring can be automatically filled according to the size of a gap between the fiber reinforced composite material reinforcing beam 400 and the inner wall of the corresponding sleeve, so that the design difficulty and the processing cost are greatly reduced.
Optionally, the rubber blocking ring 407 is a rubber-foaming agent mixed material rubber blocking ring or a plastic blocking ring.
In some embodiments, not shown, the glue retainer 407 may also be a non-expanding material glue retainer, where the glue retainer 407 may still cooperate with the edge bead 404 to double seal the ends of the glue area 403.
The glue blocking ring 407 is adhered and fixed with the fiber reinforced composite material reinforcing beam 400.
The expansion ratio of the material of each glue blocking ring 407 is 2-10 times. For example, the expansion ratio of each of the glue collars 407 is 5 times or 8 times. The expansion ratio of the glue retaining ring 407 can be selected as desired to fill the size of the space.
Each glue blocking ring 407 has a width of 5mm-15mm and a thickness of 0.5mm-5mm. For example, each glue collar 407 has a width of 10mm and a thickness of 3mm. The glue blocking ring 407 may be directly attached to the outer surface of the fiber reinforced composite reinforcement beam 400 after being cut to size.
Referring to fig. 4-5, at least one gap controlling structure is provided inside each glue joint area 403, alternatively, the gap controlling structure is a boss 405, one end of the boss 405 is provided on the outer surface of the fiber reinforced composite material reinforcing beam 400 (e.g. on the outer surfaces of the first end and the second end of the fiber reinforced composite material reinforcing beam 400), and the other end is adapted to contact the corresponding inner wall of the sleeve (e.g. the side wall inner plate 1001 or the a-pillar connecting piece 100 or the C-pillar reinforcing plate 300), so that the fiber reinforced composite material reinforcing beam 400 is better positioned, i.e. the boss 405 has a positioning function. In addition, when the adhesive region 403 is filled with adhesive, the adhesive layer thickness is equal to the thickness of the boss 405, that is, the boss 405 also has the function of controlling the adhesive layer thickness. The effect of the boss 405, i.e., the effect of the gap control structure, will not be described in detail herein.
Alternatively, the boss 405 is a circular boss with the axis of the circular boss perpendicular to the outer surface of the fixed section 402 that is in contact with the circular boss.
The glue blocking ring 407 has excellent gap size adaptability, and gaps with different sizes, caused by design and caused by part tolerance can be automatically filled through expansion, and the problem of loose sealing of the glue bonding area 403 is solved by arranging the glue blocking ring 407 outside the glue bonding area 403, so that the complete sealing of the glue bonding area 403 is realized.
Optionally, the fiber reinforced composite material reinforcing beam 400 is a carbon fiber composite material reinforcing beam, the carbon fiber composite material is a lightweight material with excellent performance, and the fiber reinforced composite material reinforcing beam 400 is made of a carbon fiber composite material, so that the weight of the fiber reinforced composite material reinforcing beam 400 can be reduced while the strength is ensured, and the lightweight design of a vehicle is facilitated.
In other alternative embodiments, the fiber reinforced composite reinforcement beam 400 may also be one of a glass fiber composite reinforcement beam, a basalt fiber composite reinforcement beam, and a carbon glass hybrid fiber composite reinforcement beam.
Glue injection holes are formed in the side wall inner plate 1001 opposite to the glue joint area 403 of the fiber reinforced composite material reinforcing beam 400, the glue is filled into the glue joint area 403 through the glue injection holes, and the glue injection holes are formed in the side wall inner plate 1001, so that glue injection operation is convenient for operators.
Alternatively, the adhesive is an epoxy-based (EP) adhesive or a polyurethane-based (PU) adhesive.
Referring to fig. 1, at least one auxiliary fixing location 1009 is formed between the cavity side wall of the side wall cavity 1003 and the fiber reinforced composite reinforcing beam 400. As shown in fig. 16, the side wall cavity 1003 is occupied by the fiber reinforced composite material reinforcing beam 400, and an auxiliary fixing position 1009 is provided between the fiber reinforced composite material reinforcing beam 400 and the cavity side wall of the side wall cavity 1003, so that the fiber reinforced composite material reinforcing beam 400 can be prevented from being suspended in the side wall cavity 1003, and the NVH performance of the side wall cavity 1003 can be improved.
By arranging the auxiliary fixing position 1009 between the fiber reinforced composite material reinforcing beam 400 and the cavity side wall of the side wall cavity 1003, the side wall and the fiber reinforced composite material reinforcing beam 400 can form a connecting point on a large surface to form a stressed whole, so that the rigidity and the strength of the side wall are improved, the improvement of the compression resistance and the impact resistance of the side wall is facilitated, and the NVH performance of the side wall cavity 1003 is improved.
Auxiliary fixing locations 1009 are provided between the first connector 100 and the second reinforcing plate 200 and/or between the second reinforcing plate 200 and the first reinforcing plate 300.
In the embodiment shown in fig. 1 and 4, the auxiliary fixing bits 1009 are provided between the first connector 100 and the second reinforcing plate 200, and between the second reinforcing plate 200 and the first reinforcing plate 300. And the number of the auxiliary fixing locations 1009 between the first connector 100 and the second reinforcing plate 200 is greater than the number of the auxiliary fixing locations 1009 between the second reinforcing plate 200 and the first reinforcing plate 300.
In other words, the first reinforcing beam section 408 of the fiber reinforced composite reinforcing beam 400 is formed between the first connector 100 and the second reinforcing plate 200, the second reinforcing beam section 409 of the fiber reinforced composite reinforcing beam 400 is formed between the second reinforcing plate 200 and the first reinforcing plate 300, and the auxiliary fixing locations 1009 are formed on each of the first reinforcing beam section 408 and the second reinforcing beam section 409. And because the length of the first reinforcement beam section 408 is greater than the length of the second reinforcement beam section 409, the number of auxiliary fixing bits 1009 on the first reinforcement beam section 408 is preferably greater than the number of auxiliary fixing bits 1009 on the second reinforcement beam section 409.
The number of auxiliary fixing bits 1009 is 5-9.
Referring to fig. 4, the first reinforcement beam section 408 is bent to a greater extent than the second reinforcement beam section 409 to better position the fiber reinforced composite reinforcement beam 400 within the side wall cavity 1003.
Specifically, the auxiliary fixing portion 1009 is an auxiliary glue joint, so that the fiber reinforced composite reinforcing beam 400 and the cavity side wall of the side wall cavity 1003 are connected in a simple and reliable manner.
And the side wall of the cavity is provided with a glue injection hole, the glue injection hole is positioned at the center of the auxiliary glue joint, and the adhesive is injected into the auxiliary glue joint through the glue injection hole, so that uniform glue injection is facilitated. The adhesive at the auxiliary fixing position 1009 adopts Epoxy (EP) adhesive or Polyurethane (PU) adhesive, namely the adhesive at the auxiliary fixing position 1009 can be the same type as the adhesive in the cementing region 403 at the A and C.
The injection rate of the adhesive is 5-20cm 3/s, and the injection temperature T is more than 5 ℃, so that the adhesive can be ensured to have better viscosity and better adhesive effect.
The adhesive is cured to form a solid adhesive layer through a heating procedure, and online infrared heating equipment can be adopted for heating and curing the adhesive, wherein the heating temperature is 90-120 ℃ and the heating time is 50-80 s. The heating temperature is inversely proportional to the heating time period, for example, the heating time period is 80s when the heating temperature is 90 ℃, the heating time period is 70s when the heating temperature is 100 ℃, the heating time period is 60s when the heating temperature is 110 ℃, and the heating time period is 50s when the heating temperature is 120 ℃.
The aperture of the glue injection hole is 4mm-10mm so as to be matched with the size of the glue injection gun head, thereby ensuring more glue injection amount in unit time and improving glue injection efficiency.
At the auxiliary fixing location 1009, the gap between the fiber reinforced composite reinforcing beam 400 and the cavity side wall is 1mm-3mm. The glue line thickness at the auxiliary glue joint is equal to the gap to secure the fiber reinforced composite reinforcement beam 400 to the cavity sidewall.
When the gap between the fiber reinforced composite material reinforcing beam 400 and the side wall of the cavity is smaller, a sinking table can be arranged on the outer surface of the fiber reinforced composite material reinforcing beam 400 facing the side wall of the cavity at the auxiliary fixing position 1009, so that the gap between the bottom wall of the sinking table and the side wall of the cavity is 1mm-3mm; or the surface of the side wall inner plate 1001 facing the fiber reinforced composite material reinforcing beam 400 is provided with a sinking table, so that the gap between the bottom wall of the sinking table and the fiber reinforced composite material reinforcing beam 400 is ensured to be 1mm-3mm, and the thickness requirement of the adhesive layer is met.
The sinking table is a circular sinking table or a rectangular sinking table, and the smallest dimension of the sinking table is not smaller than the Z-direction diameter of the composite tubular beam 400. When the gap between the fiber reinforced composite material reinforcing beam 400 and the side wall of the cavity is larger, a protruding structure can be arranged on the outer surface of the fiber reinforced composite material reinforcing beam 400 facing the side wall of the cavity at the auxiliary fixing position 1009, so that the gap between the protruding structure and the side wall of the cavity is 1mm-3mm; or the surface of the side wall inner plate 1001 facing the fiber reinforced composite material reinforcing beam 400 is provided with a protruding structure, so that a gap between the protruding structure and the fiber reinforced composite material reinforcing beam 400 is ensured to be 1mm-3mm, and the glue layer thickness requirement is met.
A fiber-reinforced composite reinforcement beam 400 according to an embodiment of the present invention is described in detail below in conjunction with fig. 1-16.
Referring to fig. 1 and 3 to 4, the fiber reinforced composite reinforcing beam 400 includes: the reinforcing beam body 401 and the fixed sections 402 arranged at the two ends of the reinforcing beam body 401, wherein the fixed sections 402 are used for connecting the connecting pieces in the side wall cavity 1003. As shown in fig. 1, the fixing section 402 at the front end of the fiber reinforced composite material reinforcing beam 400 is adapted to be connected with the a-pillar connector 100, and the fixing section 402 at the rear end of the fiber reinforced composite material reinforcing beam 400 is adapted to be connected with the C-pillar reinforcing plate 300, thereby enabling the installation of the fiber reinforced composite material reinforcing beam 400 in the side wall cavity 1003.
The fixed section 402 is adapted to be fixed to a cavity side wall of a side cavity 1003, and the fiber reinforced composite reinforcing beam 400 has a shape-following structure adapted to the side cavity 1003. In other words, the fiber reinforced composite material reinforcing beam 400 has a variable axis structure, that is, the axis of the fiber reinforced composite material reinforcing beam 400 is curved, so that the fiber reinforced composite material reinforcing beam 400 satisfies the curvature change of the side wall cavity 1003 in the front-rear direction of the vehicle, and the shape of the fiber reinforced composite material reinforcing beam 400 changes with the profile of the side wall inner plate 1001, thereby ensuring that the fiber reinforced composite material reinforcing beam 400 is better installed in the side wall cavity 1003.
In addition, the length of the fiber reinforced composite reinforcement beam 400 may be designed according to the vehicle body dimensions, satisfying the requirements of the side body cavity 1003 extending through the upper part of the side body from the a-pillar to the C-pillar.
According to the fiber reinforced composite material reinforcing beam 400 provided by the embodiment of the invention, the strength of the side wall of the vehicle can be increased by arranging the fiber reinforced composite material reinforcing beam 400 in the side wall cavity 1003 of the side wall of the vehicle, so that the collision performance of the vehicle is improved. Compared with the common metal tubular beam, the fiber reinforced composite material reinforcing beam 400 has smaller density and lighter weight, does not obviously increase the weight of the vehicle body, and is beneficial to the lightweight design of the vehicle.
By arranging the glue blocking structure 414 at the end of the glue joint area 403, the glue joint area 403 can be sealed, and the glue is prevented from leaking, thereby being beneficial to improving the glue joint firmness of the fiber reinforced composite material reinforcing beam 400 and surrounding parts.
Referring to fig. 4-5, edge dams 404 are provided on the outer surface of the fixed section 402. The attachment of the fixing segments 402 to the corresponding inner wall of the sleeve is achieved by injecting an adhesive into the glue area 403. The glue blocking structure 414 can seal the glue joint area 403, limit the glue in the glue joint area 403, ensure sufficient glue quantity in the glue joint area 403, prevent the glue from leaking, thereby ensuring the firm connection between the fixed section 402 and the corresponding sleeve inner wall, and can also control the glue layer length of the glue joint area 403, thereby being beneficial to improving the glue joint firmness degree of the fiber reinforced composite material reinforcing beam 400 and surrounding parts.
In the length direction of the fiber reinforced composite reinforcement beam 400, the fiber reinforced composite reinforcement beam 400 is adapted to the side wall cavity 1003 by a variable cross section. As shown in fig. 9, a cross section of the fiber-reinforced composite reinforcement beam 400 at the a-pillar position, as shown in fig. 12, a cross section of the fiber-reinforced composite reinforcement beam 400 at the B-pillar position, as shown in fig. 15, a cross section of the fiber-reinforced composite reinforcement beam 400 at the C-pillar position, as shown in fig. 16, a cross section of the fiber-reinforced composite reinforcement beam 400 between the a-pillar and the B-pillar, whereby it can be seen that the cross sectional shape of the fiber-reinforced composite reinforcement beam 400 may be designed to be non-uniform in the front-to-rear direction of the vehicle.
The cross-sectional area of the fiber-reinforced composite material reinforcement beam 400 is constant or gradually increases in the front-to-rear direction of the vehicle. Because the fiber-reinforced composite reinforcement beam 400 is fabricated using a 3D braiding process, in some alternative embodiments, the cross-sectional area of the fiber-reinforced composite reinforcement beam 400 may be designed to be constant, thereby simplifying the processing of the fiber-reinforced composite reinforcement beam 400. In other alternative embodiments, where the cross-sectional area of the fiber reinforced composite reinforcement beam 400 is designed to gradually increase, the impact energy may be rapidly attenuated at the front end of the fiber reinforced composite reinforcement beam 400, thereby reducing the impact energy transmitted to the rear, when the vehicle is crashed.
In some alternative embodiments, the cross-sectional area of the fiber-reinforced composite reinforcement beam 400 may also increase and decrease in the vehicle forward-rearward direction, and the maximum cross-section of the fiber-reinforced composite reinforcement beam 400 may be located on the reinforcement beam body 401.
Referring to fig. 9, 12 and 15, the cross section of the fiber reinforced composite reinforcing beam 400 is a closed cross section having a substantially quadrangular or circular shape. From a mechanical point of view, by constructing the cross section of the fiber-reinforced composite reinforcement beam 400 as a closed cross section, the stiffness of the fiber-reinforced composite reinforcement beam 400 can be effectively increased relative to an open cross section.
The cross section of the fiber reinforced composite material reinforcing beam 400 is shaped, the cross section shape and the size are variable, and the variation of the perimeter of the cross section of the fiber reinforced composite material reinforcing beam 400 is not more than 30%, so that the fiber reinforced composite material reinforcing beam 400 can be matched with the side wall cavity 1003 better.
In some alternative embodiments, the fiber reinforced composite reinforcement beam 400 may also be of uniform cross-sectional configuration to meet different design requirements.
The fiber reinforced composite reinforcement beam 400 is a hollow tubular beam or a solid beam. For example, in the embodiments shown in fig. 9, 12 and 15, the fiber reinforced composite material reinforcing beam 400 is a hollow tubular beam, so that when the fiber reinforced composite material reinforcing beam 400 is deformed by extrusion, a deformation avoiding space is left in a hollow area inside the fiber reinforced composite material reinforcing beam 400, thereby improving the collision performance of the fiber reinforced composite material reinforcing beam 400. In other embodiments, not shown, the hollow tubular beam interior of the fiber-reinforced composite reinforcement beam 400 may be filled with a reinforcing material to increase the strength and rigidity of the fiber-reinforced composite reinforcement beam 400, which may be foam, honeycomb, metal tubes, metal rods, non-metal tubes, non-metal rods, or the like. Or in other embodiments not shown, the fiber-reinforced composite reinforcement beam 400 is a solid beam.
Further, the fiber reinforced composite material reinforcing beam 400 is a hollow tubular beam, and the wall thickness of the fiber reinforced composite material reinforcing beam 400 is 2mm-6mm. For example, the wall thickness of the fiber reinforced composite reinforcement beam 400 may be 3mm or 4mm or 5mm. Too thin wall thickness can lead to the weak intensity and rigidity of the fiber reinforced composite material reinforcing beam 400, and after the wall thickness is too thin, the material is wasted, and the wall thickness is set within the range of 2mm-6mm, so that the weight is not too large while the fiber reinforced composite material reinforcing beam 400 has higher intensity and rigidity.
Referring to fig. 4 and 6, a rivet hole 406 is provided in the middle section of the reinforcement beam body 401 to facilitate the rivet fixing of the reinforcement beam body 401 and the B-pillar reinforcement plate 200. Optionally, the number of rivet holes 406 is 3-5, which can improve the riveting fixing degree of the reinforcement beam body 401 and the B-pillar reinforcement plate 200. For example, in the example of fig. 6, the number of rivet holes 406 is 4.
The wall of the fiber reinforced composite reinforcing beam 400 adopts a three-dimensional woven preform, and the weaving angle of the woven preform is + -30-60 degrees relative to the main axis. The three-dimensional woven preform includes: the weaving angle of the first direction fibers and the spindle fibers and the weaving angle of the second direction fibers and the spindle fibers are all weaving angles, the weaving angle of the first direction fibers is plus (30-60) degrees, and the weaving angle of the second direction fibers is- (30-60) degrees, assuming that the spindle fibers are 0 degrees in direction.
An a-pillar connector 100 for a vehicle is described in detail below in connection with fig. 1-16.
Referring to fig. 1, 7 to 9, an a-pillar connection member 100 for a vehicle according to an embodiment of the present invention includes: the first connecting part 106 at A, the second connecting part 107 at A and the body part at A, and the first connecting part 106 at A and the second connecting part 107 at A are respectively connected to two sides of the body part at A; the A-position body part is provided with an A-position accommodating groove, and the A-position accommodating groove extends from one end of the A-position body part to the middle of the A-position body part and forms an A-position accommodating space from one end face of the A-position body part to the inside of the A-position body part.
Specifically, the a-side receiving groove has a-side receiving groove wall 104, the a-side receiving groove wall 104 has an open end and a-side receiving groove bottom wall 102 opposite to the open end of the a-side receiving groove wall 104, and the a-side receiving groove wall 104 extends from the open end of the a-side receiving groove wall 104 toward the a-side receiving groove bottom wall 102, forming an a-side receiving space from an end face of the open end to the a-side receiving groove bottom wall 102. The front end of the fiber reinforced composite reinforcing beam 400 is adapted to be inserted into the a-site accommodation space. The first connecting portion 106 at a is provided at an upper end of the accommodation groove wall 104 at a and extends in the Y direction of the vehicle, the second connecting portion 107 at a is provided at a lower end of the accommodation groove wall 104 at a, the first connecting portion 106 at a, the second connecting portion 107 at a are adapted to be fixed with the side gusset inner panel 1001, the accommodation groove wall 104 at a is adapted to be separated from the side gusset inner panel 1001, thereby forming a first sleeve 1004 between the accommodation groove wall 104 at a and the side gusset inner panel 1001, and a front end of the fiber reinforced composite reinforcing beam 400 is adapted to be inserted into the first sleeve 1004.
Optionally, the first connection portion 106 at a, the second connection portion 107 at a and the side wall inner plate 1001 can be fixed by welding, and meanwhile, the first connection portion 106 at a and the second connection portion 107 at a are also fixed with the side wall outer plate 1002 by welding, so that the fixing effect is good.
According to the A-pillar connecting piece 100 for the vehicle, the connection between the fiber reinforced composite material reinforcing beam 400 and the A-pillar structure can be realized, the A-position accommodating space in the A-position accommodating groove can be used for accommodating the front end of the fiber reinforced composite material reinforcing beam 400, so that the indirect connection between the fiber reinforced composite material reinforcing beam 400 and the A-pillar is realized, and the A-pillar connecting piece 100 can form a force transmission path for collision and transmit force and energy in the collision process to the fiber reinforced composite material reinforcing beam 400. By altering the structure of the a-pillar connector 100, the a-pillar connector 100 can be adapted for use with different a-pillar structures.
As shown in fig. 7 and 9, the accommodating groove wall 104 at a further includes: the upper wall 101 at A and the lower wall 103 at A, the bottom wall 102 of the accommodating groove at A is connected between the upper wall 101 at A and the lower wall 103 at A, and the upper wall 101 at A, the bottom wall 102 of the accommodating groove at A and the lower wall 103 at A are encircled to form the accommodating groove at A. The first connecting portion 106 at a is connected to the upper wall 101 at a, the second connecting portion 107 at a is connected to the lower wall 103 at a, the upper wall 101 at a and the lower wall 103 at a are disposed on the same side of the bottom wall 102 of the accommodating groove at a (i.e., the side toward the side gusset inner plate 1001), and the above-mentioned open end is formed between the ends of the upper wall 101 at a and the lower wall 103 at a, which are distant from the bottom wall 102 of the accommodating groove at a.
The shape of the upper wall 101 at a, the bottom wall 102 of the receiving groove at a, and the lower wall 103 at a is substantially identical to the shape of the outer surface of the opposite fiber reinforced composite material reinforcing beam 400, and provides a bonding surface for the fiber reinforced composite material reinforcing beam 400, so as to ensure that the fiber reinforced composite material reinforcing beam 400 is reliably fixed to the a-pillar connecting member 100, and the thickness of the adhesive layer in the bonding region 403 is identical.
The distance between the a-side upper wall 101 and the a-side lower wall 103 gradually increases in the direction from the outside of the vehicle to the inside of the vehicle, thereby ensuring that the fitting area of the fiber reinforced composite material reinforcing beam 400 and the side inner panel 1001 is large, and the Y-direction dimension of the a-side lower wall 103 is larger than the Y-direction dimension of the a-side upper wall 101.
The angle between the upper wall 101 at a and the bottom wall 102 of the receiving channel at a is alpha, alpha < 180 deg.. For example α=90°. When the side wall assembly 1000 is touched by a side, an included angle alpha is formed between the A-position upper wall 101 and the A-position containing groove bottom wall 102, so that the strength between the A-position upper wall 101 and the A-position containing groove bottom wall 102 can be ensured to be large enough to resist the side touching, and the deformation amount of the A-pillar connecting piece 100 is reduced.
The vent hole 1008 is formed in the a-position containing groove wall 104 of the a-pillar connecting piece 100, so that when the adhesive is injected into the a-position adhesive bonding region 403, the air in the adhesive bonding region 403 is discharged from the vent hole 1008 along with the increase of the adhesive, and when the adhesive bonding region 403 is filled with the adhesive, the adhesive is discharged from the vent hole 1008, so that an operator is reminded to stop injecting the adhesive into the adhesive bonding region 403. The number of exhaust holes 1008 is 1-3.
Glue injection holes are formed in the containing groove wall 104 at the position A, and the number of the glue injection holes is 1-2. The adhesive is injected into the adhesive bonding region 403 through the adhesive injection holes.
The thickness of the a-pillar connection 100 is 0.8mm-1.4mm. For example, the a-pillar connector 100 has a thickness of 1mm. The thickness is too thin, so that the strength and rigidity of the A-pillar connecting piece 100 are weak, the material is wasted after the thickness is too thin, the thickness is set within the range of 0.8mm-1.4mm, and the weight is not too large while the A-pillar connecting piece 100 has higher strength and rigidity.
The outer surface of the a-pillar connecting member 100 is provided with an electrophoretic layer, whereby the corrosion resistance of the a-pillar connecting member 100 can be improved, and rust of the a-pillar connecting member 100 can be prevented.
Referring to fig. 7, the portion of the a-pillar connecting member 100 located outside the a-site receiving groove wall 104 is adapted to match the shape surface of the side inner panel 1001, and the portion of the a-pillar connecting member 100 located outside the a-site receiving groove wall 104 is adapted to be fixed with the side inner panel 1001 to enhance the connection strength of the a-pillar connecting member 100 with the side inner panel 1001.
Specifically, the portion of the a-pillar connecting member 100 located outside the a-site accommodation groove wall 104 is an a-lower body portion 105, the a-lower body portion 105 being disposed forward and downward of the a-site accommodation groove wall 104, as shown with reference to fig. 7, the a-lower body portion 105 including: the first plate portion 109 and the second plate portion 110, the second plate portion 110 and the second connection portion 107 at a are not on the same plane, and the second plate portion 110 and the second connection portion 107 at a are connected by the third plate portion 111.
The a-pillar connector 100 is provided with a-position positioning holes 108 on a portion thereof located outside the a-position receiving groove wall 104, and as shown in fig. 7, the a-position positioning holes 108 are provided on the second plate portion 110 of the a-lower body portion 105 to correctly position the a-pillar connector 100 on the side body inner panel 1001. The lower body portion 105 forms an open triangular stable structure with the door pillar molding that transmits forces to the fiber reinforced composite reinforcement beam 400 during a crash.
The a-pillar connector 100 is also connected to other components of the a-pillar, for example, the a-pillar connector 100 is welded to the a-pillar lower inner panel and the a-pillar lower reinforcement panel. The A-pillar connecting piece 100 can be independently used according to the design and performance requirements of the A-pillar, and is directly connected with the A-pillar lower reinforcing plate, and the A-pillar connecting piece 100 can be matched with the A-pillar lower inner plate for use, and at the moment, the A-pillar connecting piece 100 can be arranged between the A-pillar lower inner plate and the A-pillar lower reinforcing plate.
Specifically, when the a-pillar connecting member 100 is used alone, the lower part of the a-pillar connecting member 100 is welded to the a-pillar lower reinforcing plate, the in-vehicle direction of the a-pillar connecting member 100 is welded to the side inner panel 1001, the out-vehicle direction is welded to the side outer panel 1002, and when the a-pillar connecting member 100 is used alone, a PHS (phosphatidylserine ), UHSS (Ultra HIGH STRENGTH STEEL Ultra high strength steel), AHSS (ADVANCED HIGH STRENGTH STEEL ) material, or the like may be selected, and the thickness is 1mm to 1.4mm.
When the lower reinforcing plate of the a-pillar has been designed with the upper triangular region, the a-pillar connector 100 according to the embodiment of the present invention may be placed between the side inner panel 1001 and the lower reinforcing plate of the a-pillar, the in-vehicle direction of the a-pillar connector 100 is welded to the side inner panel 1001, and the out-vehicle direction is welded to the lower reinforcing plate of the a-pillar, and at this time, the a-pillar connector 100 may be selected from HSS (HIGH SPEED STEELS, high-speed steel), LSS, aluminum alloy material, and the like, and the thickness is 0.8mm to 1.2mm.
The rigidity and strength of the a-pillar connector 100 can be adjusted by selecting materials (different brands of high-strength steel, aluminum alloy and the like) and designing the thickness (0.8 mm-1.4 mm) so as to keep the performance of the a-pillar connector 100 and the fiber reinforced composite material reinforcing beam 400 consistent.
The vehicle a-pillar side wall structure is described in detail below in conjunction with fig. 1-16.
Referring to fig. 1 and fig. 7 to 9, a vehicle a pillar side wall structure according to an embodiment of the invention includes: side body inner panel 1001, a-pillar brace 100, and fiber reinforced composite reinforcement beam 400.
The a pillar attachment 100 is provided on the side of the side inner panel 1001 facing the outside of the vehicle, the a pillar attachment 100 is adapted to be fixed to the side inner panel 1001, and the first sleeve 1004 is formed between the a pillar attachment 100 and the side inner panel 1001. As shown in fig. 1 and 9, the front end of the fiber-reinforced composite reinforcing beam 400 is inserted into the first sleeve 1004.
The amount of change in the cross-sectional area of the glue area 403 at a is no more than 10%.
The cross-sectional area of the glue area 403 is constant or gradually decreasing in the direction of the vehicle from front to back. In some alternative embodiments, the cross-sectional area of the glue area 403 is constant, thereby ensuring a uniform glue line thickness throughout the glue area 403. When the vehicle collides with, the collision force can be transmitted backward through the front end of the adhesive bonding region 403, and in other alternative embodiments, the cross-sectional area of the adhesive bonding region 403 is designed to gradually decrease, so that the collision energy can be rapidly attenuated at the front end of the adhesive bonding region 403, thereby reducing the collision energy transmitted to the rear.
According to the vehicle A-pillar side wall structure provided by the embodiment of the invention, the fiber reinforced composite material reinforcing beam 400 can be connected with the A-pillar connecting piece 100 and the side wall inner plate 1001. In other words, the a-pillar connection 100 may enable a connection between the fiber reinforced composite reinforcement beam 400 and the a-pillar and may form a force transfer path for a collision, transferring force and energy during the collision to the fiber reinforced composite reinforcement beam 400.
The a-pillar connector 100 needs to be consistent in component stiffness with the fiber reinforced composite reinforcement beam 400 to avoid abrupt changes in stiffness.
Alternatively, a-pillar attachment 100 is welded to side body inner panel 1001.
Referring to fig. 1, the vehicle a-pillar side wall structure further includes: side outer panel 1002, a pillar attachment 100 is disposed between side inner panel 1001 and side outer panel 1002.
The first connecting portion 106 at a and the second connecting portion 107 at a are adapted to be fixed to the side body inner panel 1001, and the first sleeve 1004 is formed between the body portion at a and the side body inner panel 1001.
As shown in fig. 9, the fiber-reinforced composite reinforcing beam 400 includes: the joined first beam face 410 is adapted to oppose side body inner panel 1001 and the a-way tube beam face 410 is adapted to oppose the a-way receiving groove wall 104 of the a-pillar attachment 100.
Specifically, the a-direction tubular beam surface includes: the second beam surface 411, the third beam surface 412 and the fourth beam surface 413, the third beam surface 412 is connected between the second beam surface 411 and the fourth beam surface 413, and the second beam surface 411 and the fourth beam surface 413 are connected with the first beam surface 410. The upper wall 101 at a is opposed to the fourth beam surface 413, the bottom wall 102 of the receiving tank at a is opposed to the third beam surface 412, and the lower wall 103 at a is opposed to the second beam surface 411.
Alternatively, the area of the first beam surface 410 is larger than the area of any one of the second beam surface 411, the third beam surface 412, and the fourth beam surface 413.
The fiber-reinforced composite reinforcing beam 400 is adhesively fixed within the first sleeve 1004 without contacting the inner wall of the first sleeve 1004, and the gap between the outer surface of the fiber-reinforced composite reinforcing beam 400 and the inner wall of the first sleeve 1004 is 0.5mm-5mm, for example 3mm.
That is, the gaps between the first beam surface 410 and the side body inner panel 1001, between the second beam surface 411 and the lower wall 103 at a, between the third beam surface 412 and the bottom wall 102 of the receiving groove at a, and between the fourth beam surface 413 and the upper wall 101 at a are all 0.5mm to 5mm.
Referring to fig. 4 to 5, a gap maintaining structure for maintaining the outer surface of the fiber reinforced composite reinforcing beam 400 not in contact with the inner wall of the first sleeve 1004 is provided on the fiber reinforced composite reinforcing beam 400, and since a bonding region 403 is formed between the outer surface of the fiber reinforced composite reinforcing beam 400 and the inner wall of the first sleeve 1004, the bonding region 403 can be ensured to have a specific thickness by providing the gap maintaining structure, so that the thickness of the adhesive layer can be ensured to be sufficiently large when the adhesive is injected into the bonding region 403, thereby improving the connection firmness of the outer surface of the fiber reinforced composite reinforcing beam 400 and the inner wall of the first sleeve 1004.
The gap retaining structure is a boss 405, one end of the boss 405 is in contact with the fiber reinforced composite reinforcing beam 400, and the other end is in contact with the inner wall of the first sleeve 1004. The height of the boss 405 is the maximum thickness of the adhesive.
The length of the bonding area 403 is L, the bonding area 403 is filled with an adhesive, the adhesive layer thickness of the adhesive is t, L, t satisfies the relation: l is more than or equal to 100mm, t is more than or equal to 0.5mm and less than or equal to 5mm. For example l=120 mm, t=3 mm.
A glue injection hole and an exhaust hole 1008 are formed in the side wall of the first sleeve 1004, the glue is filled into the glue joint area 403 through the glue injection hole, and the gas in the glue joint area 403 is exhausted through the exhaust hole 1008. When the glue joint area 403 is filled with glue, the glue will be discharged from the vent 1008, and the operator is reminded to stop injecting glue into the glue joint area 403.
The glue injection holes are formed in the side wall inner plate 1001 corresponding to the glue joint area 403, so that an operator can conveniently inject the adhesive into the glue joint area 403. The exhaust hole 1008 is formed on the side wall inner plate 1001 corresponding to the glue joint area 403 or on the a pillar connecting piece 100, preferably, the exhaust hole 1008 is formed on the side wall inner plate 1001, so that an operator can more intuitively observe whether the glue joint area 403 is full or not.
The B-pillar reinforcement panel 200 is described in detail below in conjunction with fig. 1-16.
Referring to fig. 1 and 10 to 12, a B-pillar reinforcement plate 200 according to an embodiment of the present invention includes: a first connection portion 207 at B and a body portion at B, the first connection portion 207 at B being connected to an upper side of the body portion at B, and the first connection portion 207 at B extending in a Y direction of the vehicle; the B part body part is provided with a B part accommodating groove, and the B part accommodating groove extends from one end of the B part body part to the middle of the B part body part and forms a B part accommodating space from one end face of the B part body part to the inside of the B part body part.
Specifically, the B-site accommodating groove has a B-site accommodating groove wall 204, the B-site accommodating groove wall 204 has an open end and a B-site accommodating groove bottom wall 202 opposite to the open end of the B-site accommodating groove wall 204, and the B-site accommodating groove wall 204 extends from the open end of the B-site accommodating groove wall 204 toward the B-site accommodating groove bottom wall 202, forming a B-site accommodating space from the end face of the open end to the B-site accommodating groove bottom wall 202. A section of the fiber-reinforced composite reinforcement beam 400 is adapted to pass through the B-site receiving space.
Referring to fig. 11, the first connecting portion 207 at the B-site is adapted to be fixed to the side inner panel 1001, the receiving groove wall 204 at the B-site is adapted to be separated from the side inner panel 1001, so that a beam receiving space 1006 is formed between the receiving groove wall 204 at the B-site and the side inner panel 1001, the beam receiving space 1006 is a space having an opening at the lower side, the beam receiving space 1006 is penetrated at the middle portion of the fiber reinforced composite material reinforcing beam 400, and the outer surface of the fiber reinforced composite material reinforcing beam 400 is glued and riveted to the inner wall of the beam receiving space 1006, thereby completing the indirect connection between the fiber reinforced composite material reinforcing beam 400 and the B-pillar.
Optionally, the fiber reinforced composite reinforcement beam 400 has an outer surface that is spaced from an inner wall of the beam receiving space 1006.
As shown in fig. 12, the upper wall 201 at the B is suitable for being opposite to the fiber reinforced composite material reinforcing beam 400, the first connecting portion 207 at the B and the side wall inner plate 1001 can be fixed by welding, and meanwhile, the first connecting portion 207 at the B and the side wall outer plate 1002 are welded and fixed, so that the fixing effect is good.
According to the B-pillar reinforcing plate 200 of the embodiment of the invention, the connection between the fiber reinforced composite material reinforcing beam 400 and the B-pillar structure can be realized, the B-site accommodating space in the B-site accommodating groove can be used for accommodating the middle part of the fiber reinforced composite material reinforcing beam 400, so that the indirect connection between the fiber reinforced composite material reinforcing beam 400 and the B-pillar is realized, and the B-pillar reinforcing plate 200 can form a force transmission path for collision, and the force and energy in the collision process can be transmitted to the fiber reinforced composite material reinforcing beam 400. By modifying the structure of the B-pillar stiffener 200, the B-pillar stiffener 200 can be adapted to different B-pillar structures.
As shown in fig. 10 and 12, the accommodating groove wall 204 at B further includes: the upper wall 201 at B and the lower wall 203 at B, the bottom wall 202 of the accommodating groove at B is connected between the upper wall 201 at B and the lower wall 203 at B, and the upper wall 201 at B, the bottom wall 202 of the accommodating groove at B and the lower wall 203 at B are encircled to form the accommodating groove at B. The first connecting portion 207 at B is connected to the upper wall 201 at B, the upper wall 201 at B and the lower wall 203 at B are disposed on the same side of the bottom wall 202 of the accommodating groove at B (i.e., the side toward the side gusset inner panel 1001), and the above-mentioned open end is formed between the ends of the upper wall 201 at B and the lower wall 203 at B, which are distant from the bottom wall 202 of the accommodating groove at B.
The shape of the upper wall 201 at B, the bottom wall 202 of the receiving groove at B, and the lower wall 203 at B are substantially identical to the shape of the outer surface of the opposite fiber reinforced composite reinforcing beam 400, and provide a bonding surface for the fiber reinforced composite reinforcing beam 400 to ensure that the fiber reinforced composite reinforcing beam 400 is reliably secured to the B-pillar reinforcing plate 200, and the thickness of the glue layer is substantially identical.
As shown in fig. 12, the portion of the body portion below the B-position accommodating groove wall 204 is a B-position second connecting portion 205, the B-position second connecting portion 205 is connected with the B-position lower wall 203, the B-position accommodating groove wall 204 and the B-position second connecting portion 205 are arranged in a T-shape, and the X-direction dimension of the B-position accommodating groove wall 204 is larger than the X-direction dimension of the B-position second connecting portion 205.
The first connection 207 at B and the second connection 205 at B are substantially orthogonal.
The first connection 207 at B is in a different plane than the upper wall 201 at B. As shown in fig. 12, the first connecting portion 207 at B narrows in a direction approaching the lower wall 203 at B with respect to the upper wall 201 at B.
Referring to fig. 10, the second B-site body portion 205 has a front flange 208 and a rear flange 209, the front flange 208 and the rear flange 209 being adapted to be fixed to the side gusset inner panel 1001, and the region of the second B-site body portion 205 between the front flange 208 and the rear flange 209 being adapted to be separated from the side gusset inner panel 1001.
The second B-pillar body portion 205 is provided with a B-pillar positioning hole 206 for correctly positioning the B-pillar reinforcement panel 200 on the side body inner panel 1001.
As shown in fig. 11 to 12, the distance between the upper wall 201 at B and the lower wall 203 at B gradually increases in the direction from the outside of the vehicle to the inside of the vehicle, thereby ensuring that the fitting area of the fiber reinforced composite reinforcing beam 400 and the side gusset inner panel 1001 is large, and the Y-directional dimension of the upper wall 201 at B is larger than the Y-directional dimension of the lower wall 203 at B, specifically, the Y-directional dimension of the lower wall 203 at B is not more than 1/3 of the Y-directional dimension of the upper wall 201 at B.
The angle between the upper wall 201 at B and the bottom wall 202 of the receiving groove at B is β, which satisfies: beta < 180 deg.. For example β=90°. When the side wall assembly 1000 is touched by a side, an included angle beta is formed between the upper wall 201 at the position B and the bottom wall 202 of the accommodating groove at the position B, so that the strength between the upper wall 201 at the position B and the bottom wall 202 of the accommodating groove at the position B can be ensured to be large enough to resist the side touching, and the deformation amount of the B column reinforcing plate 200 is reduced.
The B-pillar reinforcement plate 200 has a B-pillar rivet hole provided in the B-pillar receiving groove wall 204, and as shown in fig. 4 and 6, a rivet hole 406 is provided in the fiber reinforced composite reinforcement beam 400, and the fiber reinforced composite reinforcement beam 400 and the B-pillar reinforcement plate 200 are riveted and fixed at the B-pillar rivet hole and the rivet hole 406.
The thickness of the B-pillar stiffener 200 is 0.8mm-1.4mm. For example, the thickness of the B-pillar stiffener 200 is 1mm. Too thin thickness can lead to the B-pillar stiffener 200 being weaker in strength and rigidity, and too much material is wasted after the thickness is too thin, and the thickness is set within the range of 0.8mm-1.4mm, so that the weight is not too large while the B-pillar stiffener 200 has higher strength and rigidity.
The outer surface of the B-pillar reinforcing plate 200 is provided with an electrophoretic layer, whereby the corrosion resistance of the B-pillar reinforcing plate 200 can be improved, and the B-pillar reinforcing plate 200 is prevented from being rusted.
The vehicle B-pillar side wall structure is described in detail below in conjunction with fig. 1-16.
Referring to fig. 1 and 10 to 12, a side pillar B pillar structure of a vehicle according to an embodiment of the invention includes: side body inner panel 1001, B pillar reinforcement panel 200, and fiber reinforced composite reinforcement beam 400.
The B pillar reinforcement panel 200 is provided on the side of the side inner panel 1001 facing the outside of the vehicle, the B pillar reinforcement panel 200 is adapted to be fixed with the side inner panel 1001, and a beam receiving space 1006 is formed between the B pillar reinforcement panel 200 and the side inner panel 1001.
At least one section of the fiber reinforced composite material reinforcing beam 400 is penetrated through the beam receiving space 1006, and the outer surface of the fiber reinforced composite material reinforcing beam 400 is fixed by glue joint and riveting with the inner wall of the beam receiving space 1006.
According to the vehicle B-pillar side wall structure provided by the embodiment of the invention, the fiber reinforced composite material reinforcing beam 400 can be connected with the B-pillar reinforcing plate 200 and the side wall inner plate 1001. In other words, the B-pillar reinforcement panel 200 may provide a connection between the fiber reinforced composite reinforcement beam 400 and the B-pillar and may form a force transfer path for a crash, transmitting force and energy during the crash to the fiber reinforced composite reinforcement beam 400.
The B-pillar reinforcement panel 200 needs to maintain consistency in component stiffness with the fiber reinforced composite reinforcement beam 400 to avoid abrupt changes in stiffness.
The B-pillar reinforcement plate 200 is riveted to the fiber reinforced composite reinforcement beam 400. In addition, the fiber reinforced composite reinforcing beam 400 is also fixedly bonded to the B-pillar reinforcement panel 200 and the side body inner panel 1001.
The B pillar reinforcement panel 200 is welded to the side body inner panel 1001. Specifically, the side body inner panel 1001 has an inner panel flange, and the B pillar reinforcement panel 200 has a B-site upper wall 201, and the B-site upper wall 201 is welded to the inner panel flange. The upper wall 201 at B is located at the upper portion of the B-pillar reinforcement plate 200 and extends in the Y-direction.
Vehicle B post side wall structure still includes: the side outer panel 1002 and the b pillar reinforcement panel 200 are provided between the side inner panel 1001 and the side outer panel 1002.
Referring to fig. 10-12, first connecting portion 207 at B is adapted to be fixed to side gusset inner panel 1001, receiving groove wall 204 at B is adapted to be separated from side gusset inner panel 1001, and beam receiving space 1006 is formed between receiving groove wall 204 at B and side gusset inner panel 1001.
The lower wall 203 is separated from the side gusset inner panel 1001 at B.
The upper wall 201 at the position B, the bottom wall 202 of the accommodating groove at the position B and the lower wall 203 at the position B are glued with the fiber reinforced composite material reinforcing beam 400, and the bottom wall 202 of the accommodating groove at the position B is riveted with the fiber reinforced composite material reinforcing beam 400, so that the fiber reinforced composite material reinforcing beam 400 is fixed in the beam accommodating space 1006.
In the embodiment shown in fig. 12, the fiber reinforced composite material reinforcing beam 400 is adhesively fixed in the beam receiving space 1006 in such a manner that it does not contact the inner wall of the beam receiving space 1006, and the gap between the outer surface of the fiber reinforced composite material reinforcing beam 400 and the inner wall of the receiving groove wall 204 at B is 0.5mm to 5mm, for example 3mm. The gap between the outer surface of the fiber-reinforced composite reinforcement beam 400 and the side gusset inner panel 1001 is also 0.5mm to 5mm.
The fiber reinforced composite reinforcing beam 400 includes: the joined first beam face 410 and B-facing tube beam face, the first beam face 410 being adapted to oppose side gusset inner panel 1001, the B-facing tube beam face being adapted to oppose receiving slot wall 204 at B.
The B-direction tubular beam surface comprises: the second beam surface 411, the third beam surface 412 and the fourth beam surface 413, the third beam surface 412 is connected between the second beam surface 411 and the fourth beam surface 413, and the second beam surface 411 and the fourth beam surface 413 are connected with the first beam surface 410. The second beam surface 411 is adapted to oppose the lower wall 203 at B, the third beam surface 412 is adapted to oppose the bottom wall 202 of the receiving slot at B, and the fourth beam surface 413 is adapted to oppose the upper wall 201 at B.
In some embodiments, not shown, the B-site receiving slot bottom wall 202 may be in engagement with the third beam surface 412 to ensure a better staking effect between the B-site receiving slot bottom wall 202 and the third beam surface 412.
Alternatively, the area of the first beam surface 410 is larger than the area of any one of the second beam surface 411, the third beam surface 412, and the fourth beam surface 413.
The outer surfaces of the front end and the rear end of the fiber reinforced composite material reinforcing beam 400 are respectively provided with a boss 405, and the free ends of the bosses 405 are attached to the side wall inner plate 1001, so that the fiber reinforced composite material reinforcing beam 400 is spaced from the inner wall of the beam accommodating space 1006, and the fiber reinforced composite material reinforcing beam 400 is spaced from the B-pillar reinforcing plate 200 and the side wall inner plate 1001. The part of the body part at the position B, which is positioned below the groove wall 204 at the position B, is a second connecting part 205 at the position B, the second connecting part 205 at the position B is connected with the lower wall 203 at the position B, and the edge of the second connecting part 205 at the position B is fixed with the side wall inner plate 1001.
The C-pillar stiffener 300 is described in detail below in connection with fig. 1-16.
Referring to fig. 1 and 13 to 15, a C-pillar reinforcement plate 300 according to an embodiment of the present invention includes: a first connection part 306 at C, a second connection part 307 at C, and a body part at C, the first connection part 306 at C and the second connection part 307 at C being connected to both sides of the body part at C, respectively; the C-shaped body part is provided with a C-shaped accommodating groove, and the C-shaped accommodating groove extends from one end of the C-shaped body part to the middle of the C-shaped body part and forms a C-shaped accommodating space from one end face of the C-shaped body part to the inside of the C-shaped body part.
Specifically, the C-position receiving groove has a C-position receiving groove wall 304, the C-position receiving groove wall 304 has an open end and a C-position receiving groove bottom wall 302 opposite to the open end of the C-position receiving groove wall 304, the C-position receiving groove wall 304 extends from the open end of the C-position receiving groove wall 304 toward the C-position receiving groove bottom wall 302, forming a C-position receiving space from an end face of the open end to the C-position receiving groove bottom wall 302. The rear end of the fiber-reinforced composite reinforcement beam 400 is adapted to be inserted into the receiving space at C.
The first connecting portion 306 at C is provided at an upper end of the receiving groove wall 304 at C and extends in the Y direction of the vehicle, the second connecting portion 307 at C is provided at a lower end of the receiving groove wall 304 at C, the first connecting portion 306 at C, the second connecting portion 307 at C are adapted to be fixed with the side gusset inner panel 1001, the receiving groove wall 304 at C is adapted to be separated from the side gusset inner panel 1001, thereby forming a second sleeve 1005 between the receiving groove wall 304 at C and the side gusset inner panel 1001, and a rear end of the fiber-reinforced composite reinforcement beam 400 is adapted to be inserted into the second sleeve 1005.
Optionally, the first connection portion 306 at C, the second connection portion 307 at C and the side wall inner plate 1001 may be fixed by welding, and at the same time, the first connection portion 306 at C and the second connection portion 307 at C are also fixed by welding with the side wall outer plate 1002, so that the fixing effect is better.
According to the C-pillar reinforcement plate 300 of the embodiment of the present invention, connection between the fiber reinforced composite reinforcement beam 400 and the C-pillar structure can be achieved, the C-site accommodation space in the C-site accommodation groove can be used to accommodate the rear end of the fiber reinforced composite reinforcement beam 400, thereby achieving indirect connection between the fiber reinforced composite reinforcement beam 400 and the C-pillar, and the C-pillar reinforcement plate 300 can form a force transmission path for collision, and transmit force and energy in the collision process to the fiber reinforced composite reinforcement beam 400. By altering the structure of the C-pillar stiffener 300, the C-pillar stiffener 300 may be adapted for different C-pillar structures.
As shown in fig. 13 and 15, the accommodating groove wall 304 at C further includes: the C-position upper wall 301 and the C-position lower wall 303, the C-position containing groove bottom wall 302 is connected between the C-position upper wall 301 and the C-position lower wall 303, and the C-position upper wall 301, the C-position containing groove bottom wall 302 and the C-position lower wall 303 are encircled to form the C-position containing groove. The first connecting portion 306 at C is connected to the upper wall 301 at C, the second connecting portion 307 at C is connected to the lower wall 303 at C, the upper wall 301 at C and the lower wall 303 at C are disposed on the same side of the bottom wall 302 of the accommodating groove at C (i.e., the side toward the side gusset inner plate 1001), and the above-mentioned open end is formed between the ends of the upper wall 301 at C and the lower wall 303 at C which are distant from the bottom wall 302 of the accommodating groove at C.
The shape of the upper wall 301 at C, the bottom wall 302 of the receiving groove at C, and the lower wall 303 at C are substantially identical to the shape of the outer surface of the opposite fiber reinforced composite reinforcement beam 400, and provide a bonding surface for the fiber reinforced composite reinforcement beam 400, so as to ensure that the fiber reinforced composite reinforcement beam 400 is reliably fixed to the C-pillar reinforcement plate 300, and the thickness of the adhesive layer in the bonding region 403 is identical.
The distance between the upper wall 301 at C and the lower wall 303 at C gradually increases in the direction from the outside of the vehicle to the inside of the vehicle, thereby ensuring that the fitting area of the fiber reinforced composite reinforcing beam 400 and the side gusset inner panel 1001 is large, and the Y-direction dimension of the upper wall 301 at C is larger than the Y-direction dimension of the lower wall 303 at C.
The angle between the upper wall 301 at C and the bottom wall 302 of the receiving groove at C is γ, which satisfies: gamma is less than 180 degrees. For example γ=90°. When the side wall assembly 1000 is touched by a side, an included angle gamma is formed between the upper wall 301 at the C position and the bottom wall 302 of the accommodating groove at the C position, so that the strength between the upper wall 301 at the C position and the bottom wall 302 of the accommodating groove at the C position can be ensured to be large enough to resist the side touching, and the deformation amount of the C column reinforcing plate 300 is reduced.
In some alternative embodiments, the angle between the upper wall 301 at C and the bottom wall 302 of the receiving slot at C is greater than the angle between the lower wall 303 at C and the bottom wall 302 of the receiving slot at C.
The C-pillar reinforcement plate 300 has a vent hole (not shown) provided in the C-pillar accommodation groove wall 304, so that when the adhesive is injected into the C-pillar adhesion region 403, air in the adhesion region 403 is discharged from the vent hole as the adhesive increases, and when the adhesion region 403 is filled with the adhesive, the adhesive is discharged from the vent hole, thereby reminding an operator to stop injecting the adhesive into the adhesion region 403. The number of the exhaust holes is 1-3.
Glue injection holes (not shown) are formed in the containing groove wall 304 at the position C, and the number of the glue injection holes is 1-2. The adhesive is injected into the adhesive bonding region 403 through the adhesive injection holes.
The thickness of the C-pillar stiffener 300 is 0.8mm-1.4mm. For example, the thickness of the C-pillar stiffener 300 is 1mm. Too thin thickness can lead to the C post reinforcing plate 300 weak in strength and rigidity, and after the thickness is too thin, the material is wasted, and the thickness is set in the range of 0.8mm-1.4mm, so that the weight is not too large while the C post reinforcing plate 300 has high strength and rigidity.
The outer surface of the C-pillar reinforcement plate 300 is provided with an electrophoretic layer, whereby the corrosion resistance of the C-pillar reinforcement plate 300 can be improved, and the C-pillar reinforcement plate 300 is prevented from being rusted.
Referring to fig. 13, the portion of C-pillar reinforcement plate 300 located outside of C-located pocket wall 304 is adapted to match the shape of side gusset inner panel 1001, and the portion of C-pillar reinforcement plate 300 located outside of C-located pocket wall 304 is adapted to be secured with side gusset inner panel 1001.
Specifically, the portion of the C pillar reinforcement plate 300 located outside the C-position receiving groove wall 304 is a C-rear body portion 305, the C-rear body portion 305 is disposed behind the C-position receiving groove wall 304, and the C-rear body portion 305 is adapted to be fixed with the side gusset inner panel 1001 to enhance the connection strength of the C pillar reinforcement plate 300 and the side gusset inner panel 1001.
The portion of the C-pillar reinforcement panel 300 located outside the C-site receiving groove wall 304 is provided with a C-site positioning hole 308, and the C-site positioning hole 308 is provided on the C-rear body portion 305 to correctly position the C-pillar reinforcement panel 300 on the side inner panel 1001.
The vehicle C-pillar side wall structure is described in detail below in conjunction with fig. 1-16.
Referring to fig. 1 and 13 to 15, a vehicle C-pillar side wall structure according to an embodiment of the present invention includes: side body inner panel 1001, C pillar reinforcement panel 300, and fiber reinforced composite reinforcement beam 400.
The C pillar reinforcement panel 300 is provided at a side of the side inner panel 1001 facing the outside of the vehicle, and the C pillar reinforcement panel 300 is adapted to be fixed with the side inner panel 1001, and a second sleeve 1005 is formed between the C pillar reinforcement panel 300 and the side inner panel 1001, the second sleeve 1005 being for accommodating the rear end of the fiber-reinforced composite reinforcement beam 400.
The amount of change in the cross-sectional area of the glue joint region 403 at C is no more than 10%.
The cross-sectional area of the glue area 403 is constant or gradually decreasing in the direction of the vehicle from front to back. In some alternative embodiments, the cross-sectional area of the glue area 403 is constant, thereby ensuring a uniform glue line thickness throughout the glue area 403. When the vehicle collides with, the collision force can be transmitted backward through the front end of the adhesive bonding region 403, and in other alternative embodiments, the cross-sectional area of the adhesive bonding region 403 is designed to gradually decrease, so that the collision energy can be rapidly attenuated at the front end of the adhesive bonding region 403, thereby reducing the collision energy transmitted to the rear.
According to the vehicle C-pillar side wall structure provided by the embodiment of the invention, the fiber reinforced composite material reinforcing beam 400 can be connected with the C-pillar reinforcing plate 300 and the side wall inner plate 1001. In other words, the C-pillar reinforcement plate 300 may enable connection between the fiber reinforced composite reinforcement beam 400 and the C-pillar, and may form a force transfer path for a collision, transmitting force and energy during the collision to the fiber reinforced composite reinforcement beam 400.
The C-pillar reinforcement panel 300 needs to maintain consistency in component stiffness with the fiber reinforced composite reinforcement beam 400 to avoid abrupt changes in stiffness.
Optionally, the C-pillar reinforcement panel 300 is welded to the side body inner panel 1001.
Referring to fig. 1, the vehicle C-pillar side wall structure further includes: side outer panel 1002, and c pillar reinforcement panel 300 are provided between side inner panel 1001 and side outer panel 1002.
The first connecting portion 306 at C and the second connecting portion 307 at C are adapted to be fixed with the side gusset inner panel 1001, and the second sleeve 1005 is formed between the body portion at C and the side gusset inner panel 1001.
The receiving slot bottom wall 302 at C is parallel or approximately parallel to the side gusset inner panel 1001.
As shown in fig. 15, the fiber reinforced composite reinforcing beam 400 includes: the joined first beam face 410 and C-pillar tube beam face, the first beam face 410 being adapted to oppose the side inner panel 1001, the C-pillar tube beam face being adapted to oppose the C-pillar brace 300 at the C-receiving groove wall 304.
Specifically, the C-direction tubular beam surface includes: the second beam surface 411, the third beam surface 412 and the fourth beam surface 413, the third beam surface 412 is connected between the second beam surface 411 and the fourth beam surface 413, and the second beam surface 411 and the fourth beam surface 413 are connected with the first beam surface 410. The upper wall 301 at C is opposite the fourth beam face 413, the bottom wall 302 of the receiving slot is opposite the third beam face 412, and the lower wall 303 at C is opposite the second beam face 411.
Alternatively, the area of the first beam surface 410 is larger than the area of any one of the second beam surface 411, the third beam surface 412, and the fourth beam surface 413.
The fiber-reinforced composite reinforcing beam 400 is adhesively fixed within the second sleeve 1005 in a manner that does not contact the inner wall of the second sleeve 1005. And the gap between the outer surface of the fiber reinforced composite reinforcing beam 400 and the inner wall of the second sleeve 1005 is 0.5mm-5mm, for example 3mm.
That is, the gaps between the first beam surface 410 and the side body inner panel 1001, between the second beam surface 411 and the lower wall 303 at C, between the third beam surface 412 and the bottom wall 302 of the receiving groove at C, and between the fourth beam surface 413 and the upper wall 301 at C are all 0.5mm to 5mm.
Referring to fig. 4 to 5, a gap retaining structure for keeping the outer surface of the fiber reinforced composite material reinforcing beam 400 and the inner wall of the second sleeve 1005 from contact is provided on the fiber reinforced composite material reinforcing beam 400, and since the adhesive joint region 403 is formed between the outer surface of the fiber reinforced composite material reinforcing beam 400 and the inner wall of the second sleeve 1005, the adhesive joint region 403 can be ensured to have a specific thickness by providing the gap retaining structure, so that when the adhesive is injected into the adhesive joint region 403, the thickness of the adhesive layer can be ensured to be sufficiently large to improve the connection firmness between the outer surface of the fiber reinforced composite material reinforcing beam 400 and the inner wall of the second sleeve 1005.
The gap retaining structure is a boss 405, one end of the boss 405 is in contact with the fiber reinforced composite reinforcing beam 400, and the other end is in contact with the inner wall of the second sleeve 1005. The height of the boss 405 is the maximum thickness of the adhesive.
The length of the bonding area 403 is L, the bonding area 403 is filled with an adhesive, the adhesive layer thickness of the adhesive is t, L, t satisfies the relation: l is more than or equal to 100mm, t is more than or equal to 0.5mm and less than or equal to 5mm. For example l=120 mm, t=3 mm.
The side wall of the second sleeve 1005 is provided with a glue injection hole and a vent hole, the glue is filled into the glue joint area 403 through the glue injection hole, and the gas in the glue joint area 403 is discharged through the vent hole. When the adhesive bonding area 403 is filled with adhesive, the adhesive will be discharged from the vent hole, and the operator is reminded to stop injecting adhesive into the adhesive bonding area 403.
The glue injection holes are formed in the side wall inner plate 1001 corresponding to the glue joint area 403, so that an operator can conveniently inject the adhesive into the glue joint area 403. The vent holes are formed in the side wall inner plate 1001 or the C-pillar reinforcement plate 300 corresponding to the glue joint area 403, preferably, the vent holes are formed in the side wall inner plate 1001, so that an operator can more intuitively observe whether the glue joint area 403 is full of glue.
The glue area of the fiber reinforced composite reinforcement beam 400 to the lower wall 203 at the B of the second reinforcement plate 200 is smaller than the glue area of the fiber reinforced composite reinforcement beam 400 to the lower wall 103 at the a of the first connector 100 and smaller than the glue area of the fiber reinforced composite reinforcement beam 400 to the lower wall 103 at the a of the first reinforcement plate 300.
According to another aspect of the invention, a vehicle includes the fiber-reinforced composite reinforcement beam of the above embodiment. Other configurations of the vehicle, such as chassis, transmission, etc., are well known to those skilled in the art and will not be described in detail herein.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.

Claims (9)

1. A fiber-reinforced composite reinforcement beam (400), comprising: the reinforcing beam body (401) and fixed sections (402) arranged at two ends of the reinforcing beam body (401), a cementing area (403) is formed on each fixed section (402), at least one end of the cementing area (403) is provided with a glue blocking structure (414),
The glue blocking structure (414) comprises: an edge bead (404), which edge bead (404) is arranged in a convex manner on the outer surface of the fixing section (402) and serves to define the position of the glue joint region (403),
The glue blocking structure (414) further comprises: the glue blocking ring (407), the glue blocking ring (407) is arranged on one side of the edge blocking rib (404) far away from the glue joint area (403), and the glue blocking ring (407) and the edge blocking rib (404) form a double-layer glue blocking structure;
the glue blocking ring (407) is a thermal expansion glue blocking ring,
The glue retaining ring (407) has an expanded state such that the outer diameter of the glue retaining ring (407) is larger than the outer diameter of the edge bead (404) so as to seal the end of the glue joint area (403),
The edge rib (404) and the fixing section (402) are integrally formed.
2. The fiber reinforced composite reinforcement beam (400) according to claim 1, characterized in that both ends of the glue area (403) are provided with the edge bead (404).
3. The fiber reinforced composite reinforcement beam (400) of claim 1, wherein the edge rib (404) is an annular boss.
4. The fiber reinforced composite reinforcement beam (400) of claim 1, wherein the glue retaining ring (407) is adhesively secured to the securing section (402).
5. The fiber reinforced composite reinforcement beam (400) of claim 4, wherein each of said glue collars (407) has a width of 5mm to 15mm and a thickness of 0.5mm to 5mm.
6. The fiber reinforced composite reinforcement beam (400) of claim 4, wherein the expansion ratio of the material of the glue retaining ring (407) is 2-10 times.
7. The fiber reinforced composite reinforcement beam (400) of any of claims 4-6, wherein the glue barrier ring (407) is a rubber-blowing agent hybrid glue barrier ring or a rubber-or plastic-material glue barrier ring.
8. The fiber reinforced composite reinforcement beam (400) according to claim 1, wherein the interior of the glue area (403) is provided with at least one gap controlling structure.
9. A vehicle characterized by comprising a fiber reinforced composite reinforcement beam (400) according to any of claims 1-8, said fiber reinforced composite reinforcement beam (400) being disposed within a side body cavity (1003) provided in a side body of the vehicle.
CN201811511639.0A 2018-12-11 2018-12-11 Fiber reinforced composite reinforcing beam and vehicle with same Active CN109455229B (en)

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