Structure of single-phase reactor

Abstract

A single-phase reactor includes an outer peripheral iron core, at least four iron cores, which are in contact with or coupled to the inner surface of the outer peripheral iron core, and coils which are wound around at least two iron cores of the at least four iron cores. Gaps, which can be magnetically coupled, are each formed between two adjacent ones of the at least four iron cores, or are formed between the at least four iron cores and a central iron core positioned at the center of the outer peripheral iron core.

What is claimed is: 
     
         1 . A single-phase reactor comprising:
 an outer peripheral iron core;   at least four iron cores being in contact with or coupled to the inner surface of the outer peripheral iron core; and   coils wound around at least two iron cores of the at least four iron cores, wherein   gaps, which can be magnetically coupled, are each formed between two adjacent ones of the at least four iron cores, or are formed between the at least four iron cores and a central iron core positioned at the center of the outer peripheral iron core.   
     
     
         2 . The single-phase reactor according to  claim 1 , wherein the number of the at least four iron cores is an even number not less than 6. 
     
     
         3 . The single-phase reactor according to  claim 1 , wherein the iron cores are each comprised of a plurality of iron core portions. 
     
     
         4 . The single-phase reactor according to  claim 3 , wherein iron core portion gaps, which can be magnetically coupled, are each formed between adjacent ones of the plurality of iron core portions. 
     
     
         5 . The single-phase reactor according to  claim 1 , wherein outer peripheral iron core gaps, which can be magnetically coupled, are formed between the iron cores and the outer peripheral iron core. 
     
     
         6 . The single-phase reactor according to  claim 1 , wherein the outer peripheral iron core is comprised of a plurality of outer peripheral iron core portions. 
     
     
         7 . The single-phase reactor according to  claim 6 , wherein outer peripheral iron core portion gaps are each formed between adjacent ones of the plurality of outer peripheral iron core portions. 
     
     
         8 . The single-phase reactor according to  claim 1 , wherein the single-phase reactor comprises a first set comprised of at least two iron cores around which the coils are wound, and a second set comprised of the other at least two iron cores around which the coils are wound. 
     
     
         9 . The single-phase reactor according to  claim 8 , wherein the single-phase reactor has three or more sets each comprised of the at least two iron cores around which the coils are wound. 
     
     
         10 . The single-phase reactor according to  claim 1 , wherein a gap material that is a non-magnetic material, or an insulating paper or resin is inserted or charged into at least one of the gaps, the iron core portion gaps, or the outer peripheral iron core portion gaps in the single-phase reactor. 
     
     
         11 . The single-phase reactor according to  claim 1 , wherein a gap material that is a non-magnetic material, or an insulating material or resin is charged into the inside of the outer peripheral iron core in the single-phase reactor. 
     
     
         12 . A motor driving device comprising the single-phase reactor according to  claim 1 . 
     
     
         13 . A machine comprising the single-phase reactor according to  claim 1 . 
     
     
         14 . A rectifier device comprising the single-phase reactor according to  claim 1 . 
     
     
         15 . A charging device comprising the rectifier device according to  claim 14 .