Energy absorbing type nut and automobile

Abstract

The invention discloses an energy absorbing type nut and an automobile. The energy absorbing type nut comprises a cover body, a locking part and a shell; a locking cavity penetrating through the locking part in an axial direction is formed in the locking part and is connected with a stud or a bolt; the cover body seals one end of the locking cavity; the cover body is fixedly connected with the locking part, so that a nut main body can be formed; the shell sleeves the outer side face of the nut main body and is fixedly connected with the nut main body; a first cavity is formed between the shelland the outer side face of the nut main body; and the shell can collapse and deform under the action of an external force. According to the energy absorbing type nut and the automobile of the invention, the first cavity and the shell capable of being deformed towards the first cavity are adopted, so that the energy absorbing type nut can be formed; when the nut is squeezed, the contact area of the nut during squeezing can be increased; squeezing strength and the penetrating capacity of the stud are reduced; the short circuit and power failure of the automobile caused by direct contact betweenthe electrified stud and an automobile body structure in the squeezing process are avoided; and therefore, safety is high, and user experience is improved.

Description

technical field [0001] The invention relates to the field of nut technology for automotive electrical appliances, in particular to a crush nut and an automobile. Background technique [0002] With the development of automobile functions and the emergence of new energy vehicles, there are more and more automotive electrical appliances. There are also more and more cases of low-voltage power failure in the frontal crash test of safe high-speed vehicles. At present, the mandatory Regulations and NCAP (New Car Assessment Program, New Car Collision Test) have increasingly stringent requirements for the protection of commonly used electrical appliances in collisions. [0003] At present, there are more and more incidents of low-voltage power failure, and the scope of involvement is wider and wider; for example: the fixed studs in the vehicle fuse box in the engine compartment are squeezed and penetrated through the box cover and short-circuited with the sheet metal during the coll...

AI Technical Summary

Problems solved by technology

[0003] At present, there are more and more incidents of low-voltage power failure, and the scope of involvement is wider and wider; for example: the fixed studs in the vehicle fuse box in the engine compartment are squeezed and penetrated through the box cover and short-circuited with the sheet metal during the collision; Cases where the studs and live devices such as batteries are extruded and penetrated the protective cover; in these cases, the strong penetration ability of the top of the studs makes direct contact between the live studs and the body structure during the extrusion process, which in turn leads to a short circuit of the vehicle Power down; poor security and degraded user experience

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