As a high-speed rotating working part, the automobile air compressor has a high probability of failure, and abnormal noise is a common fault. There are many reasons for the abnormal noise of the compressor. For example, the electromagnetic clutch of the compressor is damaged, or the internal wear of the compressor is severe, and abnormal noise can be generated. Yuyao Linsheng analyzed five potential causes for this failure:
1. The electromagnetic clutch of the compressor is a common part of abnormal noise.
Compressors often operate from low speed to high speed under high load, so the requirements for electromagnetic clutch are very high, and the installation position of the electromagnetic clutch is generally close to the ground, often exposed to rain and mud, when the bearing in the electromagnetic clutch is damaged. An abnormal noise will occur.
2, the tightness of the compressor drive tape also directly affects the life of the electromagnetic clutch
If the transmission tape is too loose, the electromagnetic clutch is prone to slippage; the transmission tape is too tight and the load on the electromagnetic clutch will increase. If the transmission tape is not tight, the compressor will not work, and the compressor will be damaged. When the drive belt is working, if the compressor pulley and the generator pulley are not in the same plane, the life of the drive belt or compressor will be reduced.
3, the repeated pull-in of the electromagnetic clutch will also cause abnormal noise in the compressor
For example, the generator does not generate enough power, the air conditioning system pressure is too high, or the engine load is too large, which will cause repeated clutching of the electromagnetic clutch.
4. The gap between the electromagnetic clutch and the compressor mounting surface
There should be a certain gap between the compressor mounting surfaces of the electromagnetic clutch. If the clearance is too large, the impact will increase. If the clearance is too small, the electromagnetic clutch will work with the compressor mounting surface to generate motion interference. It is also a common cause of abnormal noise.
5. Reliable lubrication is required when the compressor is working.
When the compressor lacks lubricating oil, or the lubricating oil is not used properly, serious internal noise will be generated inside the compressor, and even the wear and tear of the compressor will be scrapped. It is recommended to repair it in time. If it is stopped, it will become louder and louder. When the bearing is broken and the shaft is broken, you may change the whole air conditioner when you repair it.