Driving and control device for a vacuum pump, vacuum pump, and method for producing a control circuit board for a vacuum pump

Abstract

In a separating wall, which separates a vacuum region from a region under atmospheric pressure, pins are provided as a current lead-through. The pins are cast in, for example, glass. A plug-in contact is arranged on a separate carrier plate in order to prevent force or stresses, which can occur in particular because of tolerances, from being introduced into the glass. The carrier plate is connected to the control device by a flexible cable.

What is claimed is: 
     
         1 . Driving and control device for a vacuum pump having
 an electric device arranged in a vacuum region of a vacuum pump,   a control device arranged outside the vacuum region of the vacuum pump,   a separating wall for delimiting the vacuum region and   a current lead-through arranged in the separating wall in a vacuum-tight manner and connected to the electric device via first current conductors and to the control device via second current conductors,   wherein   the second current conductor has a plug contact directly connected to the current lead-through, the plug contact, prior to assembly, being connected to the control device via at least one connecting web.   
     
     
         2 . Driving and control device of  claim 1 , wherein the control device has a control circuit board connected to the separating wall. 
     
     
         3 . Driving and control device of  claim 2 , wherein the plug contact is fastened on the separating wall. 
     
     
         4 . Driving and control device of  claim 1 , wherein the control device is fastened to a base plate which preferably is fastened on the separating wall. 
     
     
         5 . Driving and control device of  claim 4 , wherein the plug contact is fastened on the base plate. 
     
     
         6 . Driving and control device of  claim 2 , wherein the plug contact is connected to the control circuit board via a flexible conductor. 
     
     
         7 . Driving and control device of  claim 2 , wherein the at least one connecting web of the plug connector is connected to the control circuit board. 
     
     
         8 . Driving and control device of  claim 7 , wherein the plug contact is arranged on a carrier plate and the connecting webs are connected to the carrier plate. 
     
     
         9 . Driving and control device of  claim 7 , wherein the connecting webs are severed for a tolerance-compensating assembly. 
     
     
         10 . Vacuum pump comprising
 a rotor shaft arranged in a pump chamber, the shaft carrying at least one rotor element,   at least one stator element arranged in the pump housing and cooperating with the at least one rotor element,   an electric device arranged in a vacuum region of the vacuum pump,   a control device arranged outside the vacuum region of the vacuum pump,   a separating wall for delimiting the vacuum region, and   a current lead-through arranged in the separating wall in a vacuum-tight manner and connected to the electric device via first current conductors and to the control device via second current conductors,   wherein   the second current conductor has a plug contact directly connected to the current lead-through, the plug contact, prior to assembly, being connected to the control device via at least one connecting web.   
     
     
         11 . Method for manufacturing and mounting a control circuit board for a vacuum pump, the method comprising the following steps:
 manufacturing a circuit board carrier having a main carrier and a carrier plate connected to the main carrier via at least one connecting web,   equipping the main carrier with electronic components,   arranging a plug contact on the carrier plate, and   severing the at least one connecting web for or during assembly.   
     
     
         12 . Method of  claim 11 , wherein the main carrier and/or the carrier plate is assembled to a separating wall or a base plate of a driving and control device for a vacuum pump comprising: an electric device arranged in a vacuum region of a vacuum pump; a control device arranged outside the vacuum region of the vacuum pump; a separating wall for delimiting the vacuum region; and a current lead-through arranged in the separating wall in a vacuum-tight manner and connected to the electric device via first current conductors and to the control device via second current conductors, wherein the second current conductor has a plug contact directly connected to the current lead-through, the plug contact, prior to assembly, being connected to the control device via at least one connecting web, the plug contact being connected directly to the current lead-through. 
     
     
         13 . Method of  claim 11 , wherein the plug contact is fastened to the base plate from an outer side after having been plugged onto the current lead-through.