Knee energy-absorbing protecting device and energy-absorbing support

Abstract

The invention relates to a knee energy-absorbing protecting device and an energy-absorbing support and aims at improving the problem that existing protecting devices are low in energy-absorbing efficiency. The protecting device comprises a manifold beam, a knee protecting plate and the energy-absorbing supports connecting the manifold beam with the knee protecting plate, each energy-absorbing support is formed by an outer frame and an inner supporting member supporting the outer frame, each outer frame comprises an upper frame, a lower frame, a left frame and a right frame, the upper frames and the lower frames are opposite in position, the left frames and the right frames are positioned at two ends of the upper frames and the lower frames, each inner supporting member comprises a first supporting member connecting the upper frame and the corresponding lower frame respectively, a second supporting member and a third supporting member, and the second supporting member and the third supporting member are positioned on the left side and the right side of the corresponding first supporting member. The upper frames and the lower frames are waved and are provided with multiple thinning portions and adjusting holes, so that after a collision occurs, collision energy can be effectively absorbed through deformation at the adjusting holes and the thinning portions.

Description

technical field [0001] The invention relates to the field of automobile safety, in particular to a knee energy-absorbing protection device and an energy-absorbing bracket used inside a cockpit assembly. Background technique [0002] There are many kinds of knee protection technologies used in automobiles, including setting airbag devices on the knees, sheet metal energy-absorbing brackets, foam energy-absorbing blocks, etc. The knee airbag device uses the airbag to cushion the energy of the collision, so as to protect the knee from injury. Generally speaking, the cost of knee airbags is relatively high, so they are mostly equipped in mid-to-high-end cars. In addition, the knee airbag modules are also relatively large in size and heavy in weight, making it difficult to arrange them in compact cars. The sheet metal energy-absorbing bracket cushions the collision of the knee through the deformation of the bracket to reduce the damage to the knee. However, sheet metal energy-a...

AI Technical Summary

Problems solved by technology

However, sheet metal energy-absorbing brackets are generally heavy in weight, and the energy-absorbing efficiency is not high, that is, less energy is absorbed in the same space. In addition, the scope of design and debugging is narrow, so the development time period is longer

The knee protection panel, because it is an appearance part, has high requirements for size and matching with the instrument panel, and the energy absorption efficiency is not high

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