Filter apparatus and frequency converter to which the filter apparatus is connected

Abstract

A power converter in which a filter apparatus is connected to a wiring drawing portion, said filter apparatus including: a condenser element having an electronic part having an insulator as a dielectric material held between conductor plates; a sealing agent sealing said condenser element; a filter circuit comprising said condenser element; a connection conductor establishing wiring connections of said filter circuit; and a filter housing supporting said sealing agent.

1 . A power converter in which a filter apparatus is connected to a wiring drawing portion, said filter apparatus comprising:
 a condenser element having an electronic part having an insulator as a dielectric material held between conductor plates;   a sealing agent sealing said condenser element;   a filter circuit comprising said condenser element;   a connection conductor establishing wiring connections of said filter circuit; and   a filter housing supporting said sealing agent.   
   
   
       2 . The power converter according to  claim 1 , wherein the connection conductor drawn from a side opposite to an opening of said filter housing is connected to the frequency converter on the ground electrode side. 
   
   
       3 . The power converter according to  claim 1 , wherein the connection conductor drawn from a side opposite to a side on which the connection conductor is connected to the wiring drawing portion of said frequency converter is connected to the frequency converter on the ground electrode side. 
   
   
       4 . The power converter according to  claim 1 , wherein said connection conductor covers part of the side face inside said filter housing. 
   
   
       5 . The power converter according to  claim 1 , wherein a wall for preventing said sealing agent from flowing out from a hole for taking the connection conductor on the ground side which is connected to said frequency converter on the ground electrode side is provided. 
   
   
       6 . The power converter according to  claim 5 , wherein if said sealing agent has a high viscosity, a wall for preventing said sealing agent from flowing out from a hole for taking the connection conductor on the ground side which is connected to said frequency converter on the ground electrode side is not provided. 
   
   
       7 . The power converter according to  claim 1 , wherein part of a housing of said frequency converter and part of the filter housing are fitted to each other to fix said filter housing to said frequency converter. 
   
   
       8 . The power converter according to  claim 1 , wherein the filter housing is provided with a fitting portion in which part of the filter housing is fitted to part of the housing of said frequency converter. 
   
   
       9 . The power converter according to  claim 8 , wherein the filter housing is provided with a raised portion fitted to a recessed groove in part of the housing of said frequency converter. 
   
   
       10 . The power converter according to  claim 8 , wherein the filter housing is provided with a recessed groove fitted to a raised portion in part of the housing of said frequency converter. 
   
   
       11 . The power converter according to  claim 1 , wherein characteristics of said filter apparatus are based on Class A of EN55011, Class B of EN55011 or the specification of EN61800.