Impact resistant component for a vehicle

Patent metadata

Field	Value
Publication number	US-10293770-B2
Application number	US-201715480569-A
Country	US
Kind code	B2
Filing date	Apr 6, 2017
Priority date	Jul 2, 2014
Publication date	May 21, 2019
Grant date	May 21, 2019

Abstract

Provided is a load-carrying or non-load carrying structural component for a vehicle having improved impact resistance, such as a gas tank protection shield, an underbody shield, a structural panel, an interior floor, a floor pan, a roof, an exterior surface, a storage area, a glove box, a console box, a trunk, a trunk floor, a truck bed, and combinations thereof. The component has a support structure with ridges, each spaced apart from one another at predetermined intervals, to form a corrugated surface capable of load-carrying. The ridges are longitudinally extending, raised ridges. The corrugated designs provide support structures that are impact resistant.

First claim

What is claimed is:

1. An impact resistant component for a vehicle, comprising:
a support structure comprising a plurality of elongate ridges formed therein, wherein each respective elongate ridge comprises a top wall and two side walls and each respective elongate ridge of the plurality is spaced apart from adjacent elongate ridges of the plurality at predetermined intervals to form a corrugated surface capable of load-carrying, wherein a height of the side walls extends from a lower terminal surface of the support structure including a thickness of the support structure to an upper terminal surface of the top wall, wherein the support structure comprises a fiber-reinforced composite material comprising a polymer and a carbon fiber, the fiber-reinforced composite material has a Young's modulus (E) of greater than or equal to about 20 GPa to less than or equal to about 30 GPa, a ratio of the height of the side walls to the Young's modulus (E) is greater than or equal to about 0.4 mm/GPa to less than or equal to about 1 mm/GPa, and the support structure is impact resistant.

2. The impact resistant component of claim 1 , wherein a ratio of a width of the top wall to the height of the side walls is greater than or equal to about 1 to less than or equal to about 3.

3. The impact resistant component of claim 1 , wherein the ratio of a width of the top wall to the height of the side walls is greater than or equal to about 1.25 to less than or equal to about 2.75.

4. The impact resistant component of claim 1 , wherein a width of the top wall is greater than or equal to about 20 millimeters to less than or equal to about 35 millimeters; and
wherein the height of the side walls is greater than or equal to about 10 millimeters to less than or equal to about 18 millimeters.

5. The impact resistant component of claim 1 , wherein regions between respective elongate ridges of the plurality of elongate ridges have a width of greater than or equal to about 25 millimeters to less than or equal to about 40 millimeters.

6. The impact resistant component of claim 1 , wherein the top wall of each of the plurality of ridges is flat and regions between respective elongate ridges of the plurality of elongate ridges are parallel to the top wall of each of the plurality of elongate ridges.

7. The impact resistant component of claim 1 , wherein each of the two side walls defines an angle with respect to the top wall that is less than or equal to about 20 degrees from perpendicular.

8. The impact resistant component of claim 1 , wherein each of the two side walls defines an angle with respect to the top wall that is greater than or equal to about 3 degrees to less than or equal to about 40 degrees from perpendicular.

9. The impact resistant component of claim 1 , further comprising a plurality of protrusions disposed on the plurality of elongate ridges that defines a predetermined periodicity, wherein the support structure comprises a first side and a second opposite side, so that the first side is a top surface and the second opposite side is a bottom surface and the plurality of protrusions is disposed on:
(i) the bottom surface of the second opposite side, while the top surface of the first side is smooth;
(ii) the top surface of the first side, while the bottom surface of the second opposite side is smooth; or
(iii) both the top surface of the first side and the bottom surface of the second opposite side.

10. The impact resistant component of claim 1 , wherein the fiber-reinforced composite material comprises a thermoplastic polymer.

11. The impact resistant component of claim 1 , wherein the thickness of the support structure is greater than or equal to about 1.5 mm to less than or equal to about 5 mm.

12. The impact resistant component of claim 1 , wherein the support structure is capable of withstanding greater than or equal to about 12 Joules of impact energy before cracking.

Assignees

• Gm Global Tech Operations Llc
• Teijin Ltd

Inventors

• Owens John N
• Voss Mark A
• Shah Bhavesh
• Aitharaju Venkateshwar R
• Wisniewski Chris James Tadeusz
• Yagi Yutaka
• Arai Tsukasa

Classifications

• B62D25/087 Primary

  Luggage compartments · CPC title

• B62D25/20

  Floors or bottom sub-units {(sub-frames for mounting engine or suspensions B62D21/11; drip trays F16N31/006)} · CPC title

• B62D33/02

  Platforms; Open load compartments {(flat wagons including posts or standards B61D3/08)} · CPC title

• B62D25/02

  Side panels {(B62D33/046 takes precedence; sideboards for open load compartments B62D33/023)} · CPC title

• B60R19/023 Primary

  Details · CPC title