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CONTROL DEVICE, CIRCUIT BOARD INSTALLED AT SAID CONTROL DEVICE AND VACUUM PUMP APPLIED WITH SAID CONTROL DEVICE

机译:控制装置,安装在所述控制装置上的电路板以及应用于所述控制装置的真空泵

摘要

PROBLEM TO BE SOLVED: To provide a control device having a simple heat radiation structure enabling a cost at the time of replacement of its component element to be reduced in which a smaller type pump than that of the prior art can be constituted and its manufacturing can be carried more easily, a circuit board installed at said control device and a vacuum pump applied with said control device.SOLUTION: A driving current amplifier 5 including FET for use in flowing electric current against an electro-magnet 104 of a magnet bearing or the like and a driving current amplifier 7 including FET for use in flowing electric current against a three-phase motor 121 are installed on one power substrate 21. In turn, a magnet bearing floating control 6 composed of light current elements including a digital circuit or a sensor circuit for use in controlling floating of the magnetic bearing and light current elements including a digital circuit or a sensor circuit requisite for a rotating speed control 8 against the motor 121 are installed on one control board 23. Since only power substrate 21 includes the power element, only this power substrate 21 has a short life due to heat and it is easily troubled in operation. The power substrate 21 is fixed against a frame 12 through a heat radiation sheet 24.SELECTED DRAWING: Figure 2
机译:解决的问题:提供一种具有简单的散热结构的控制装置,该控制装置能够减少更换其组成元件时的成本,其中,可以构成比现有技术更小的泵,并且其制造可以解决方案:驱动电流放大器5包括FET,用于使电流流过电磁轴承或电磁轴承的电磁体104,以便更容易地携带该电路板和装有该控制设备的真空泵。在一个功率基板21上安装有类似的器件,并且包括用于使电流流过三相电动机121的FET的驱动电流放大器7安装在一个功率基板21上。继而,一个由浮动电流组成的磁体轴承6由包括数字电路或交流电的电流元件组成。用于控制磁性轴承和光电流元件浮动的传感器电路,包括数字电路或转速控制所需的传感器电路在一个控制基板23上安装有与电动机121抵接的支架8。由于仅功率基板21具有功率元件,因此仅该功率基板21因热而寿命短,容易引起作业上的麻烦。功率基板21通过散热片24固定在框架12上。

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