3results about How to "Avoid irreversible deformation" patented technology

This invention discloses a high-pressure-resistant power battery protective shell based on a multi-dimensional honeycomb structure, relating to the field of power battery protection technology. It includes an upper protective cover, with side plates fixedly connected to both ends of the upper protective cover via fixing mechanisms. The two side plates are arranged opposite each other and enclose a cell-accommodating cavity. A honeycomb pressure-resistant mechanism is provided on the side of the upper protective cover facing the cell-accommodating cavity. At least two sets of symmetrically distributed lifting mechanisms are provided on the outer sides of both side plates. The multi-dimensional gradient composite honeycomb structure achieves high pressure and impact resistance protection, while also possessing flame-retardant, heat-absorbing, and heat-dissipating properties. This solves the problems of insufficient pressure resistance, single protective function, and poor installation adaptability of traditional power battery protective shells, significantly improving the safety and stability of power battery use.

A wide-temperature, high-precision optical acceleration sensing chip and acceleration sensor based on the principle of a microcavity interferometer are disclosed. The acceleration sensing chip includes a first substrate, a second substrate, and a third substrate. An optical fiber mounting base and a light-transmitting hole are formed on the first substrate. The chip is characterized by a single-mode optical fiber assembly fixed on the optical fiber mounting base. The end face of the single-mode optical fiber assembly is precision ground and perpendicular to the axis of the optical fiber core. The optical fiber mounting base is a stepped hole with a first stepped portion and a second stepped portion. The single-mode optical fiber assembly includes a glass sleeve disposed on the outer layer and a single-mode optical fiber disposed in the core. The first stepped portion, the second stepped portion, the end face of the glass sleeve, and the end face of the single-mode optical fiber are all perpendicular to the core axis of the single-mode optical fiber. The first stepped portion forms a first fit with the end face of the glass sleeve, and the second stepped portion forms a second fit with the end face of the single-mode optical fiber.