A protection device for hydrogen cylinder system of hydrogen fuel passenger car

Abstract

The invention discloses a hydrogen bottle system protection device for a hydrogen fuel passenger car, which includes a fixing device, a shear bolt and a longitudinal buffer for three-level protection; the fixing device and the frame are fixed to constrain the degree of freedom of the hydrogen bottle, so that the hydrogen bottle is under the condition of slight impact When the vehicle is subjected to a large longitudinal acceleration, the entire hydrogen cylinder fixing device will not be separated from the frame under the action of the shear bolt and its related restraint devices; when the vehicle is subjected to excessive longitudinal acceleration , the shear bolt is broken, so that the hydrogen bottle fixing device is separated from the frame as a whole and reciprocates in a linear motion in the slide rail. The longitudinal buffer, as the third-level protection of the device, can buffer the hydrogen bottle fixing device. Attenuate the energy of its motion in the slide rail; realize the protection of the hydrogen cylinder when the hydrogen fuel passenger car has a longitudinal collision, especially when it is hit by a large acceleration; and use the lateral buffer to buffer the left and right shaking The impact on the hydrogen bottle.

Description

technical field [0001] The invention relates to the technical field of anti-collision protection devices, in particular to a protection device for a hydrogen cylinder system of a hydrogen fuel passenger car. Background technique [0002] With the continuous development of society, the role of automobiles in people's lives has become more and more obvious, and people cannot do without automobiles when they are engaged in production activities. A fuel cell vehicle is a vehicle that uses hydrogen instead of traditional oil as a power source. It uses hydrogen and oxygen to generate a large amount of energy and water that is not harmful to the environment under the action of a catalyst. It achieves zero pollution and zero emissions to the environment. The ideal means of transportation in line with the concept of sustainable development. Many well-known car manufacturers and enterprises in the world have launched hydrogen fuel-powered vehicles. Through the application of hydrogen...

AI Technical Summary

Problems solved by technology

Because hydrogen molecules are extremely small, diffusion is easy to occur, and its explosion limit is between 4% and 74.2%, which is relatively large. Once a leak occurs, it is easy to explode and cause extremely serious consequences.

[0004] However, the current hydrogen bottle system on the market has only a simple fixing device, which cannot fundamentally protect the hydrogen bottle

This leads to a huge acceleration when the bus collides or rolls over, and the hydrogen bottle system will generate a huge inertial load and a very high impact force due to its heavy weight, which will cause the hydrogen bottle to fly out of the fixing device Or collide with the vehicle body, the hydrogen bottle system is prone to hydrogen leakage after the collision is damaged, which will pose a great threat to the safety of passengers

On the other hand, because the preparation of hydrogen is relatively difficult, and the production cost of hydrogen bottles is relatively high, the loss caused by damage will be very serious

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