日本日柬工器公司开发了一种“直线式空气压缩机”,这是直线电动机应用领域里的一个新突破。众所周知,一般的空压机工作原理是通过旋转电机,曲轴、连杆机构将回转运动变为活塞的往复运动,使气体在气缸内完成进气、压缩、排气等过程,而直线式空压机是通过直线电动机的电枢带动活塞进行往复运动来工作的,不仅省去了比较复杂的传动机构,还具有体积小、重量轻、耗电省、噪声低、使用寿命长以及起动电流小(仅为工作电流的1.5倍)等特点。另外,活塞体上一部分采用了聚四氟乙烯树脂,所以摩擦阻力小,也无需油润滑。图1是单动式空压机的基本原理,直线电机使用交流电源及二极管半波整流(见图2)。其工作状态为:当电流经过绕组时,电磁铁将电枢连同活塞(整体)一起吸合,此时气缸内的吸气阀打开吸气(图2-t_A),然 JAPAN has developed a “linear air compressor”, which is a new breakthrough in the field of linear motor applications. As we all know, the general air compressor works by rotating the motor, crankshaft, connecting rod mechanism will be rotary motion into reciprocating piston, the gas in the cylinder to complete the intake, compression, exhaust and other processes, and linear pneumatics Machine is driven by a linear motor armature reciprocating piston to work, not only eliminates the need for more complex transmission, but also has small size, light weight, low power consumption, low noise, long service life and small starting current Only 1.5 times the operating current) and other characteristics. In addition, the piston body part of the polytetrafluoroethylene resin, so the friction resistance is small, no oil lubrication. Figure 1 is the basic principle of single-acting air compressor, linear motor AC power and diode half-wave rectifier (see Figure 2). The working state is: When the current through the winding, the electromagnet together with the piston (the whole) together, then inhalation valve in the cylinder open (Figure 2-t_A), then