CN209258240U - A kind of composite-material body side threshold anti-collision structure - Google Patents

Abstract

The utility model relates to a kind of composite-material body side threshold anti-collision structures, it is characterized by: energy-absorbing buffering core material is rectangular tubular structure, energy-absorbing buffering core material front end is fixedly connected with front end and reinforces shell, energy-absorbing buffering core material rear end is fixedly connected with rear end and reinforces shell, reinforce shell in front end, reinforce shell in rear end, energy-absorbing buffering core material forms threshold anti-collision structure main body, multiple threshold anti-collision structure main bodys in tandem and are fixedly connected on inside composite material side wall body sill, threshold anti-collision structure main body is connected on composite material side wall body sill inner wall along the one end in the direction vehicle x, it can improve composite material automobile doorsill structure intensity, when side collision occurs for automobile, reduce vehicle occupant compartment intrusion volume, and it absorbs impact energy and guarantees passenger safety.

Description

A kind of composite-material body side threshold anti-collision structure

Technical field

The utility model relates to a kind of composite-material body side threshold anti-collision structures, belong to automobile anti-collision protective device skill Art field.

Background technique

In recent years, automotive light weight technology becomes the focal point of world car industry, and exploitation meets safety mark and requires and light The auto parts and components of matter, improving VE Vehicle Economy becomes the development trend of automobile industry.Composite is sent out as present material One of important trend of exhibition also becomes one of great potential and following material in automotive light weight technology selection.Composite material is Refer to the material being composed of two or more different performances, different shape component material by combination process, can satisfy Physical property and the specific function requirement that homogenous material cannot achieve.Composite material is anisotropic material, and structural member is set For meter, its reinforcing fiber laying direction can be designed by actual loading direction completely, to realize maximum lightweight.

Traditional metal plate body side wall threshold is designed as hollow cavity, connects metal reinforcement in inside with welding manner, Guarantee vehicle body side wall when colliding can be absorbed and disperse enough energy with guarantee space locating for driver not by The life security of interior driver and passenger is protected in intrusion.Nowadays, for vehicle complete vehicle lightweight index request, there are many compound The case that material vehicle body side wall structure is successfully developed and applied, but original body side wall threshold metal reinforcement is because of connection side The reasons such as formula and electrochemical corrosion have not been suitable for the reinforcement of current composite material cavity body structure.Therefore, a kind of be applicable in need to be developed In composite material cavity body structure, support side threshold and buffering collision can be played, and Joining Technology is simple, easy to produce and dimension It repairs, cost is relatively low, the completely new anti-collision structure without galvanic corrosion.

Summary of the invention

The purpose of the utility model is to provide a kind of composite-material body side threshold anti-collision structures, can improve composite wood Expect automobile threshold structure intensity, when side collision occurs for automobile, reduce vehicle occupant compartment intrusion volume, and absorbs impact energy guarantor Demonstrate,prove passenger safety.

The technical solution of the utility model is achieved in that a kind of composite-material body side threshold anti-collision structure, by Shell is reinforced in front end, shell is reinforced in rear end, energy-absorbing buffering core material composition, it is characterised in that: energy-absorbing buffering core material is rectangular tubular Structure, energy-absorbing buffering core material front end are fixedly connected with front end and reinforce shell, and energy-absorbing buffering core material rear end is fixedly connected with rear end stiffened shell Body, shell is reinforced in front end, shell is reinforced in rear end, energy-absorbing buffering core material forms threshold anti-collision structure main body, multiple threshold anticollision knots Structure main body in tandem and is fixedly connected on inside composite material side wall body sill, and threshold anti-collision structure main body is along the vehicle side x To one end be connected on composite material side wall body sill inner wall, reinforce the side of shell to reinforce shell and composite material Side wall outer panel of automobile body adhesion type face, the other side are the adhesion type face for reinforcing shell and composite-material body side-wall inner-plate, stiffened shell There is a protrusion of step in the front end of body, and raised stiffened shell object table terrace agrees with Nian Jie with the rear end that another reinforces shell, adds Strong casing step face center is provided with cemented in place hole between a reinforcement shell, passes through reinforcement shell between two reinforcement shells Between cemented in place hole aligned position guarantee precision, the two sides of stiffened shell object table terrace are along having the step transition face with angle, platform The angle of rank transition face is 155 degree of -165 degree.

The good effect of the utility model be the anti-collision structure enhance composite-material body side threshold structural strength and Buffering energy-absorbing ability, structure is simply easy to produce, select composite material as reinforce shell eliminate original metal reinforcement with Galvanic corrosion problem existing for composite material threshold.Meanwhile in this reinforcement structure energy-absorbing buffering core material play energy-absorbing buffering with Absorbing sound and lowering noise effect.

Detailed description of the invention

Fig. 1 is the schematic diagram of the utility model.

Fig. 2 is the anti-collision unit of the utility model and the schematic diagram of two sides reinforcement casing assembling structure.

Fig. 3 is the schematic diagram of the reinforcement shell structure of the utility model.

Fig. 4 is the cross-sectional view of the utility model body side wall threshold anti-collision structure overlook direction.

Specific embodiment

The utility model is described further with reference to the accompanying drawing: as shown in Figs 1-4, a kind of composite-material body side wall Threshold anti-collision structure reinforces shell 1 by front end, shell 2 is reinforced in rear end, energy-absorbing buffering core material 3 forms, it is characterised in that: energy-absorbing Buffering core material 3 is rectangular tubular structure, and 3 front end of energy-absorbing buffering core material is fixedly connected with front end and reinforces shell 1, energy-absorbing buffering core material 3 Rear end is fixedly connected with rear end and reinforces shell 2, and it is anti-that shell 1 is reinforced in front end, shell 2 is reinforced in rear end, energy-absorbing buffering core material 3 forms threshold Hit main structure body, multiple threshold anti-collision structure main bodys in tandem and are fixedly connected in composite material side wall body sill 121 Portion, threshold anti-collision structure main body are connected on 121 inner wall of composite material side wall body sill along the one end in the direction vehicle x, add The side of shell 1 is reinforcement shell and composite-material body side-wall outer-plate adhesion type face 131 by force, and the other side is for reinforcement shell and again There are the protrusion of step, raised stiffened shell object table in the adhesion type face 132 of condensation material body side wall inner panel, the front end for reinforcing shell Terrace 133 agrees with Nian Jie with the rear end that another reinforces shell, and 133 center of stiffened shell object table terrace is provided with a stiffened shell Cemented in place hole 134 between body guarantees essence by 134 aligned position of cemented in place hole between reinforcing shell between two reinforcement shells Degree, along there is the step transition face 135 with angle, the angle in step transition face 135 is for the two sides of stiffened shell object table terrace 133 155 degree of -165 degree.

As shown in Figure 1, composite-material body side threshold anti-collision structure 110 is applied to a kind of composite-material body, set It is placed in the threshold cavity body structure in 121 part of composite-material body side threshold comprising composite-material body A column 122 is answered Condensation material center body pillar 123, composite-material body C column 124, composite material car door crossbeam 125 and composite-material body side wall door Sill 121.Wherein threshold anti-collision structure is installed at 121 assembly of composite material side wall body sill, threshold strengthening structure width side To one end be connected on 121 inner wall of composite material side wall body sill.

As shown in Fig. 2, the first reinforcement shell 111, second reinforces shell 112 and energy-absorbing buffering core material 113 together constitutes Anti-collision unit 110.First reinforcement shell 111 is opposite with the second reinforcement shell and is arranged in parallel, and 113 one end of energy-absorbing buffering core material is viscous It is connected to 111 inner surface of the first reinforcement shell, the other end of energy-absorbing buffering core material 113 is adhered to 112 inner surface of the second reinforcement shell； 131 is reinforce shell and composite-material body side-wall outer-plate adhesion type face, and 132 is in reinforcement shell and composite-material body side walls The adhesion type face of plate.133 be stiffened shell object table terrace, i.e., with it back to the bonding adhesion type face reinforced between shell, 133 areas It can amplify and reduce with adhesive strength demand；134 be cemented in place hole between the reinforcement shell being mutually bonded, to guarantee to be bonded Setting accuracy.135 be step transition face, and angle is 155 degree ~ 165 degree, is designed according to required conquassation deformation requirements.

The left shell of the second stiffening plate 1-112 is adhered to composite-material body side-wall outer-plate in first group of reinforcer unit Threshold mounting portion, the right shell body of the second stiffening plate 1-112 is adhered in composite-material body side wall in first group of reinforcer unit Plate threshold mounting portion；The left shell of the first stiffening plate 2-111 is adhered to composite-material body side wall in second group of anti-collision unit Outside plate threshold mounting portion, the right shell body of the first stiffening plate 2-111 is adhered to composite-material body side wall in second group of anti-collision unit Inner panel threshold mounting portion.First reinforcement in second stiffening plate 1-112 and second group of anti-collision unit in first group of anti-collision unit simultaneously Plate 2-111 is further formed " I " fonts section structure 140, corresponding energy-absorbing buffering core after bonding connection, the two bonding Material is fixed between continuous two " I " fonts section structures, remaining group anti-collision unit is as described above along side threshold length direction Successively assembly bonding.Multiple anti-collision units be formed by " I " fonts and energy-absorbing buffering core material support construction 110 as shown in Fig. 2, And anti-collision structure 110 is adhered between composite-material body side-wall outer-plate and composite-material body side-wall inner-plate, make composite wood Continuous overall structure is formed at material body side wall inner and outer plates threshold, improves composite-material body doorsill structure intensity, is reduced Intrusion volume when crew module is by lateral impact.In present pre-ferred embodiments, first, which reinforces shell 111 and second, reinforces shell 112 constitute anisotropy mechanical structure part by epoxy-carbon fiber-based composite material with a thickness of 3mm, and energy-absorbing buffering core material 113 is Polymethacrylimide foam.

Claims (1)

1. a kind of composite-material body side threshold anti-collision structure reinforces shell by front end, shell, energy-absorbing buffering core are reinforced in rear end Material composition, it is characterised in that: energy-absorbing buffering core material is rectangular tubular structure, and energy-absorbing buffering core material front end is fixedly connected with front end reinforcement Shell, energy-absorbing buffering core material rear end are fixedly connected with rear end and reinforce shell, and shell is reinforced in front end, shell, energy-absorbing buffering are reinforced in rear end Core material forms threshold anti-collision structure main body, and multiple threshold anti-collision structure main bodys in tandem and are fixedly connected on composite material side wall Inside body sill, threshold anti-collision structure main body is connected to composite material side wall body sill inner wall along the one end in the direction vehicle x On, reinforce the side of shell to reinforce shell and composite-material body side-wall outer-plate adhesion type face, the other side is to reinforce shell With the adhesion type face of composite-material body side-wall inner-plate, there are the protrusion of step, raised reinforcement shell in the front end for reinforcing shell Step surface agrees with Nian Jie with the rear end that another reinforces shell, and stiffened shell object table terrace center is provided between a reinforcement shell Cemented in place hole guarantees precision by cemented in place hole aligned position between reinforcing shell between two reinforcement shells, reinforces shell Along there is the step transition face with angle, the angle in step transition face is 155 degree of -165 degree for the two sides of step surface.