New energy automobile vacuum pump with detection function

Abstract

The invention discloses a new energy automobile vacuum pump with a detection function. The new energy automobile vacuum pump comprises a pump body, an air inlet pipe is arranged at an air inlet of the pump body, a first connecting pipe and a second connecting pipe are arranged on the air inlet pipe, the first connecting pipe communicates with the air inlet pipe, and a moving mechanism is arranged on one side of the air inlet pipe. The new energy automobile vacuum pump is different from the prior art, by arranging the moving mechanism, when the vacuum pump is started, a moving plug can be driven to move in the sleeve under the action of atmospheric pressure, the moving condition of the moving plug can be visually observed through an observation window, then the abrasion condition of the vacuum pump is judged according to the moving amplitude of the moving plug, the condition of the vacuum pump can be conveniently and visually judged, the vacuum pump is maintained before the vacuum degree of the vacuum pump cannot reach the standard, the situation that the vacuum degree of the vacuum pump is insufficient is avoided, and normal use of a vehicle is guaranteed.

Description

technical field [0001] The invention relates to the technical field of new energy vehicles, in particular to a vacuum pump for new energy vehicles with a detection function. Background technique [0002] New energy vehicles refer to all other energy vehicles except gasoline and diesel engines, including fuel cell vehicles, hybrid vehicles, hydrogen energy vehicles and solar vehicles, etc., and their exhaust emissions are relatively low. According to incomplete statistics, the world's existing There are more than 4 million liquefied petroleum gas vehicles and more than 1 million natural gas vehicles. At present, most of the new energy vehicles on the Chinese market are hybrid vehicles and pure electric vehicles. According to the definition announced by the National Development and Reform Commission of the People's Republic of China, the new Energy vehicles refer to the use of unconventional vehicle fuels as power sources (or the use of conventional vehicle fuels, the use of n...

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Problems solved by technology

[0006] After long-term use of the vacuum pump, the vacuum degree will be insufficient due to wear and other problems. Although the vacuum degree sensor can detect the vacuum degree of the vacuum pump, the sensor only displays two states, namely, insufficient vacuum degree and sufficient vacuum degree. For vacuum degree If it is enough but close to the standard line, it cannot be detected. It is inconvenient for people to judge the use of the vacuum pump. When people need to travel long distances, they need to check many parts in the car. At this time, they need to use a vacuum gauge to check The vacuum degree of the vacuum pump is accurately detected, and then it is judged whether the vacuum pump needs to be maintained or repaired, and once the air leakage occurs at the joint between the vacuum pump and the vacuum gauge, it will lead to errors in the vacuum degree detection results

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