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Vehicle collision-proof beam

A technology of anti-collision beams and automobiles, which is applied to vehicle parts, vehicle safety arrangements, bumpers, etc., can solve the problems of inability to guarantee safety standards, high structural fit and precision, and high manufacturing costs, so as to reduce injury index and improve safety Sexuality, the effect of protecting safety

Pending Publication Date: 2019-01-18
SHANGHAI COTECH AUTOMOTIVE ENG CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods require an overall modification of the front end of the entire vehicle, are not suitable for existing vehicles, and have high manufacturing costs and high requirements for structural fit and precision.
At the same time, this method does not guarantee that new security standards will be met

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 2 and image 3 As shown, the present embodiment provides an automobile anti-collision beam, including a main beam 21, an energy absorbing box 22 and a flange 5, the main beam 21 is connected to the front longitudinal beam 3 of the automobile through the flange 5 and bolts 6, and the main beam 21 An energy-absorbing box 22 is arranged between the front side member and the front longitudinal beam 3 . At present, there are many types of materials and manufacturing processes used for the main beam of automobiles, mainly divided into high-strength steel anti-collision beams; steel ultra-high-strength anti-collision beams; aluminum anti-collision beams, etc. The manufacturing process is mainly divided into: rolling process, stamping process; casting process; extrusion process, etc. The left / right crash box 22 is divided into an upper crash box 221 and a lower crash box 222, and the upper crash box 221 and the lower crash box 222 are connected by welding. Th...

Embodiment 2

[0041] The main girder in this embodiment is made of alloy steel with a model number of 980DP and a thickness of 1.8 mm. The width of the main girder is 45 mm and the height is 110 mm. The hook type of the side beam is a three-section two-fold structure. From one end connected to the main beam, the first section is an extension section on both sides of the main beam, with a length of 135mm. It is 135mm, and the third section is at an angle of 125 degrees to the transverse direction of the vehicle. One end is connected to the second section, and the other end is suspended in the air. The distance from the suspended end on the side beam to the shotgun structure is 30mm, and the rest is the same as in the first embodiment.

Embodiment 3

[0043] The main girder of this embodiment adopts the alloy steel of model 1100DP and thickness of 1.0 mm. The width of the main girder is 40 mm and the height is 105 mm; From the beginning, the first section is the extension section on both sides of the main beam, the length is 120mm, the second section is at an angle of 45 degrees to the transverse direction of the vehicle, and the length is 120mm, and the third section is at an angle of 123 degrees to the transverse direction of the vehicle, one end of which is connected to the second section , the other end is suspended in the air, and the distance from the suspended end of the side beam to the shotgun structure is 15mm, and the rest is the same as in the first embodiment.

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Abstract

The invention relates to a vehicle collision-proof beam, which comprises a main beam, an energy absorbing box and a flange, wherein the main beam is connected with a front longitudinal beam of an vehicle through a flange and a bolt, an energy absorbing box is arranged between the main beam and the flange, two mirror-symmetrical side beams are respectively arranged at left and right ends of the main beam, each side beam structure is of a hook type, one end of the hook type is connected with the main beam, and the other end of the hook type is suspended and pointing to a body shotgun structure.In accordance with that prior art, As that vehicle is in a small offset collision process, After the vehicle is impacted by the collider, because two side beams are added to the side of the main beam,the length of the whole anti-collision beam is increased, and the yield strength of the two side beams is higher than that of the energy absorbing box, the energy absorbing box on the side of the collision will collapse and absorb energy first, and then the side beam will collapse and bend to impact the front longitudinal beam. As a result, the vehicle deviates from the collider with the drivingpassenger along the projection plane of the collision direction, thereby reducing the passenger injury index and protecting the safety of passengers.

Description

technical field [0001] The invention relates to the field of automobile safety, in particular to an automobile anti-collision beam. Background technique [0002] With the development of automobile technology and the improvement of people's safety awareness, the requirements for automobile safety are getting higher and higher. There have always been two collision safety standards, C-NCAP and E-NCAP, which are used to conduct a safety test of 40% overlap collision of a car at a speed of 64km / h to ensure and evaluate the safety of the car. In 2017, China Automotive Engineering Research Institute and China Insurance Research Institute Automotive Technology Research Institute compiled the China Insurance Automobile Safety Index C-IASI regulations, which even proposed that the car needs to be 25% overlapped at a speed of 64km / h. Safety testing puts forward new requirements for the safety of automobiles. In the C-NCAP and E-NCAP collision environments, the 40% offset collision ba...

Claims

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Application Information

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IPC IPC(8): B60R19/18
CPCB60R19/18B60R2019/1813
Inventor 王治
Owner SHANGHAI COTECH AUTOMOTIVE ENG CORP LTD
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