Automobile seat based on concave hexagonal negative poisson ratio cellular structure

Abstract

The invention provides an automobile seat based on a concave hexagonal negative Poisson's ratio cellular structure, which comprises a headrest area, a backrest area, a cushion area and a seat framework, wherein the cushion area comprises multiple layers of negative Poisson's ratio structures for buffering and fillers filled among the multiple layers of negative Poisson's ratio structures; the multi-layer negative Poisson's ratio structure is formed by a plurality of negative Poisson's ratio cell arrays, and the cell walls of the cells are in a regular concave hexagon shape. According to the invention, the negative Poisson's ratio structure can fully resist load pressure of a driver and passengers on the seat; in addition, when an automobile is in a rapid acceleration state, the energy absorption efficiency of the back cushion and the back cushion can be improved, impact force borne by the back is more stable, and therefore, the driving experience and comfort of the driver and the passengers are greatly improved. Besides, from the perspective of automobile light weight, compared with a traditional structure, the negative Poisson's ratio structure has the advantages that the mass is greatly reduced, the mass of the whole automobile is reduced, the driving cost of the automobile is saved, and the internal space of the automobile is saved.

Description

technical field [0001] The invention relates to a car seat, in particular to a car seat based on a concave hexagonal negative Poisson's ratio cell structure. Background technique [0002] At present, the foaming material of car seat generally adopts flexible polyurethane foaming, which is obtained by reacting isocyanate, polyether or polyester polyol, and adding other additives. Foam provides the shape and contour of the seat, and the properties of the foam affect ride comfort and the H-point. This kind of seat has better support, but its texture is relatively hard, which seriously affects the riding experience of the driver and passengers, especially during long-distance travel, this kind of seat will make people feel extremely uncomfortable. Thus, the increase of people's demand for riding experience cannot be achieved. [0003] When the material is subjected to unidirectional stress or compression, Poisson's ratio refers to the ratio of the absolute value of the transve...

AI Technical Summary

Problems solved by technology

This kind of seat has good support, but the texture is hard, which seriously affects the riding experience of the driver and passengers, especially during long-distance travel, this kind of seat will make people feel extremely uncomfortable

As a result, the increase in people's demand for ride experience cannot be achieved.

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