CN217835562U - Combined type automobile anti-collision beam with multi-cavity structure - Google Patents
Combined type automobile anti-collision beam with multi-cavity structure Download PDFInfo
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- CN217835562U CN217835562U CN202220986933.2U CN202220986933U CN217835562U CN 217835562 U CN217835562 U CN 217835562U CN 202220986933 U CN202220986933 U CN 202220986933U CN 217835562 U CN217835562 U CN 217835562U
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Abstract
An automobile anti-collision beam with a combined multi-cavity structure comprises an anti-collision beam body, an energy absorption box and a connecting plate; the anti-collision beam body is an arc-shaped cross beam matched with the shape of a vehicle body, the left end and the right end of the anti-collision beam body are respectively connected with the energy absorption boxes through bolts, the anti-collision beam body is of a multi-cavity structure and consists of a crumpling energy absorption cavity positioned on the outer side and a reinforcing support cavity positioned on the inner side, the thickness delta 1 of the side wall of the crumpling energy absorption cavity is smaller than the thickness delta 2 of the side wall of the reinforcing support cavity, and delta 1 is smaller than delta 2; the energy absorption box is assembled with the connecting plate through a bolt; the connecting plate is fixed on the vehicle body framework. The utility model discloses an optimal design to car anticollision roof beam structure has improved the transmission route of collision impact force to through the deformation of bursting in proper order of energy-absorbing structure, make the collision energy weaken gradually, thereby reached the purpose of protection vehicle and driver and crew safety.
Description
Technical Field
The utility model relates to an anticollision roof beam of car, especially a crashproof roof beam before modular many die cavity structures's car.
Background
As a first barrier for passive safety of automobiles, the automobile anti-collision beam is an important part for absorbing and buffering external impact force and protecting the safety of automobile bodies and drivers and passengers. The existing front anti-collision beam of the automobile is mostly made of steel or aluminum materials, and safety protection is realized through an auxiliary component with an energy absorption function, but the number of the components is large, welding assembly is needed among the components, and the manufacturing cost is relatively high; in addition, the existing steel or aluminum automobile anti-collision beam is large in weight and volume, is not beneficial to the space arrangement and light-weight design of a vehicle, and can reduce the strength of the anti-collision beam if the light-weight effect is obtained in a way of reducing the wall thickness of parts, so that the problem of deformation and fracture occurs when light collision occurs, and the safety performance of the vehicle is adversely affected.
SUMMERY OF THE UTILITY MODEL
The utility model provides a modular many die cavity structure's car anticollision roof beam aims at through the optimal design to car anticollision roof beam structure, improves the transmission route of collision impact force to through the deformation of collapsing in proper order of energy-absorbing structure, make the collision energy weaken gradually, thereby reach the purpose of protection vehicle and driver and crew's safety.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an automobile anti-collision beam with a combined multi-cavity structure comprises an anti-collision beam body, an energy absorption box and a connecting plate; the anti-collision beam body is an arc-shaped cross beam matched with the shape of a vehicle body, the left end and the right end of the anti-collision beam body are respectively connected with the energy absorption boxes through bolts, the anti-collision beam body is of a multi-cavity structure and consists of a crumple energy absorption cavity positioned on the outer side and a reinforced support cavity positioned on the inner side, the side wall thickness delta 1 of the crumple energy absorption cavity is smaller than the side wall thickness delta 2 of the reinforced support cavity, and delta 1 is smaller than delta 2; the energy absorption box is assembled with the connecting plate through a bolt; the connecting plate is fixed on the vehicle body framework.
In the automobile anti-collision beam with the combined multi-cavity structure, the crumple energy absorption cavity of the anti-collision beam body is a hollow cavity with a rectangular cross section, and the thickness delta 1 of the side wall of the anti-collision beam body is not less than 2mm; the reinforcing support cavity of anticollision roof beam body is the hollow cavity of rectangular cross section for being equipped with middle strengthening rib, and its lateral wall thickness delta 2=3mm.
Above-mentioned automobile anticollision roof beam of many die cavity structures of combination formula, the hollow cavity of rectangular cross section of the strengthening support cavity of anticollision roof beam body for being equipped with a middle strengthening rib, will strengthen the support cavity average partition through middle strengthening rib and be two rectangular hollow cavities.
Above-mentioned automobile anticollision roof beam of many die cavity structures of combination formula, the hollow cavity of rectangular cross section of the strengthening support cavity of anticollision roof beam body for being equipped with two middle strengthening ribs is the hollow cavity of three rectangle with strengthening support cavity average separation through two middle strengthening ribs.
According to the automobile anti-collision beam with the combined type multi-cavity structure, the anti-collision beam body is made of the composite material and is integrally formed through a pultrusion process.
The utility model relates to a modular many die cavity structure's automobile anticollision roof beam, its anticollision roof beam body adopts multi-chamber structure, by the burst energy-absorbing cavity that contracts that is located the outside with be located inboard enhancement support cavity and constitute, when the automobile body bumps, can be at first through the burst energy-absorbing cavity absorption part collision energy that contracts in the outside, support cavity transmission and dispersed energy by inboard enhancement again, last by the energy-absorbing box burst absorption collision energy that contracts, thereby make the impact and the energy that transmit automobile body longeron and passenger cabin weaken greatly, safety for vehicle driver and crew provides the guarantee. Additionally, the utility model discloses anticollision roof beam body adopts combined material in the structure, through pultrusion technology integrated into one piece to through bolted connection between each component part of anticollision roof beam, not only reduced spare part quantity and the space that occupies, reduced the dismouting degree of difficulty and put in order car weight, make it more accord with lightweight design theory, also reduced manufacturing cost simultaneously, can bring better economic benefits for the enterprise.
Drawings
Fig. 1 is a schematic view of an automobile anti-collision beam structure with a combined multi-cavity structure according to the present invention;
FIG. 2 is an exploded view of the structure of FIG. 1;
FIG. 3 is a cross-sectional structural view of a first embodiment of the impact beam body;
FIG. 4 is a cross-sectional structural view of a second embodiment of an impact beam body;
fig. 5 is traditional car anticollision roof beam and the utility model discloses combination formula multiple cavity structure's car anticollision roof beam simulation bump test's energy-absorbing curve contrasts picture.
The figures are numbered as follows:
1 is an anti-collision beam body, 1-1 is a crumple energy-absorbing cavity, 1-2 is a reinforcing support cavity, and 1-3 is a middle reinforcing rib; 2 is an energy absorption box; and 3, a connecting plate.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, 2 and 3, the automobile anti-collision beam with a combined multi-cavity structure of the present invention includes an anti-collision beam body 1, an energy absorption box 2 and a connection plate 3; the anti-collision beam comprises an anti-collision beam body 1, an energy absorption box 2, a multi-cavity structure, a collapse energy absorption cavity 1-1 and a reinforced support cavity 1-2, wherein the anti-collision beam body 1 is an arc-shaped cross beam matched with the shape of a vehicle body, the left end and the right end of the anti-collision beam body are respectively connected with the energy absorption box 2 through bolts, the anti-collision beam body 1 is of the multi-cavity structure and consists of a collapse energy absorption cavity 1-1 positioned on the outer side and a reinforced support cavity 1-2 positioned on the inner side, the thickness delta 1 of the side wall of the collapse energy absorption cavity 1-1 is smaller than the thickness delta 2 of the side wall of the reinforced support cavity 1-2, and delta 1 is smaller than delta 2; the energy absorption box 2 is assembled with the connecting plate 3 through bolts; the connecting plate 3 is fixed on the vehicle body framework.
Referring to fig. 3, the present invention provides a combined type multi-cavity structure of an anti-collision beam, which comprises the following first preferred embodiments: the collapse energy absorption cavity 1-1 of the anti-collision beam body 1 is a hollow cavity with a rectangular section, and the side wall thickness delta 1 of the collapse energy absorption cavity is 2mm; the thickness delta 2 of the side wall of the reinforcing support cavity 1-2 of the anti-collision beam body 1 is not less than 3mm, the reinforcing support cavity 1-2 is provided with a middle reinforcing rib 1-3, and the reinforcing support cavity is averagely divided into two rectangular hollow cavities through the middle reinforcing rib 1-3.
Referring to fig. 4, the present invention provides a combined type multi-cavity structure anti-collision beam, which has a second preferred embodiment: the collapse energy absorption cavity 1-1 of the anti-collision beam body 1 is a hollow cavity with a rectangular section, and the side wall thickness delta 1 of the collapse energy absorption cavity is 2mm; the thickness delta 2 of the side wall of the reinforcing support cavity 1-2 of the anti-collision beam body 1 is not less than 3mm, the reinforcing support cavity 1-2 is provided with two middle reinforcing ribs 1-3, and the reinforcing support cavity is averagely divided into three rectangular hollow cavities through the two middle reinforcing ribs 1-3.
Referring to fig. 1 to 5, the anti-collision beam body 1 of the combined multi-cavity structure of the present invention adopts a multi-cavity structure, and the design of the multi-cavity structure is characterized in that the outer-side crumple energy-absorbing cavity 1-1 is relatively fragile with the inner-side reinforcing support cavity 1-2, when receiving impact force, the outer-side crumple energy-absorbing cavity 1-1 can absorb part of the impact energy, the inner-side reinforcing support cavity 1-2 transmits and disperses the energy, and the energy-absorbing box 2 crumples and absorbs the impact energy, so that the impact force and the energy transmitted to the vehicle longitudinal beam and the passenger compartment are greatly weakened, and the safety of the vehicle driver and the passenger is ensured. Fig. 5 is to the utility model discloses second preferred embodiment and the 10km/h emulation crash test energy-absorbing effect contrast diagram of traditional anticollision roof beam (abscissa t takes place the back time for the collision in the picture, and ordinate E is the collision energy that the crashproof roof beam received), wherein I is the 10km/h collision emulation energy-absorbing effect curve of traditional anticollision roof beam, II does the utility model discloses second preferred embodiment's 10km/h collision emulation energy-absorbing effect curve, can see from the emulation test result the utility model discloses the energy-absorbing curve is more level and smooth, and is more excellent to the effect of alleviating the impact after bumping.
Claims (5)
1. The utility model provides a modular many die cavity structure's car anticollision roof beam which characterized in that: the energy-absorbing bumper comprises an anti-collision beam body (1), an energy-absorbing box (2) and a connecting plate (3); the anti-collision beam comprises an anti-collision beam body (1), an energy absorption box (2), a multi-cavity structure, a crumple energy absorption cavity (1-1) and a reinforced support cavity (1-2), wherein the anti-collision beam body (1) is an arc-shaped beam matched with the shape of a vehicle body, the left end and the right end of the anti-collision beam body are respectively connected with the energy absorption box (2) through bolts, the anti-collision beam body (1) is of the multi-cavity structure and consists of the crumple energy absorption cavity (1-1) positioned on the outer side and the reinforced support cavity (1-2) positioned on the inner side, the thickness delta 1 of the side wall of the crumple energy absorption cavity (1-1) is smaller than the thickness delta 2 of the side wall of the reinforced support cavity (1-2), namely delta 1 is smaller than delta 2; the energy absorption box (2) is assembled with the connecting plate (3) through bolts; the connecting plate (3) is fixed on the vehicle body framework.
2. The combined type multi-cavity structural automobile anti-collision beam as claimed in claim 1, wherein: the collapse energy absorption cavity (1-1) of the anti-collision beam body (1) is a hollow cavity with a rectangular cross section, and the side wall thickness delta 1 of the cavity is not less than 2mm; the reinforcing support cavity (1-2) of the anti-collision beam body (1) is a rectangular cross-section hollow cavity provided with middle reinforcing ribs (1-3), and the thickness of the side wall delta 2 of the cavity is 3mm.
3. The automobile anti-collision beam with the combined multi-cavity structure according to claim 2, characterized in that: the reinforcing support cavity (1-2) of the anti-collision beam body (1) is a rectangular-section hollow cavity provided with a middle reinforcing rib (1-3), and the reinforcing support cavity (1-2) is equally divided into two rectangular hollow cavities through the middle reinforcing rib (1-3).
4. The combined type multi-cavity structural automobile anti-collision beam as claimed in claim 2, wherein: the reinforcing and supporting cavity (1-2) of the anti-collision beam body (1) is a rectangular-section hollow cavity provided with two middle reinforcing ribs (1-3), and the reinforcing and supporting cavity (1-2) is evenly divided into three rectangular hollow cavities through the two middle reinforcing ribs (1-3).
5. The combined multi-cavity structural automobile impact beam according to any one of claims 1 to 4, wherein: the anti-collision beam body (1) is made of composite materials and is integrally formed through a pultrusion process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220986933.2U CN217835562U (en) | 2022-04-26 | 2022-04-26 | Combined type automobile anti-collision beam with multi-cavity structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220986933.2U CN217835562U (en) | 2022-04-26 | 2022-04-26 | Combined type automobile anti-collision beam with multi-cavity structure |
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| Publication Number | Publication Date |
|---|---|
| CN217835562U true CN217835562U (en) | 2022-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220986933.2U Active CN217835562U (en) | 2022-04-26 | 2022-04-26 | Combined type automobile anti-collision beam with multi-cavity structure |
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| Country | Link |
|---|---|
| CN (1) | CN217835562U (en) |
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- 2022-04-26 CN CN202220986933.2U patent/CN217835562U/en active Active
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