JP2003284268A5 - - Google Patents

Claims (14)

A first core member that continuously arranges a plurality of plate-like first core pieces and a second core member that continuously arranges a plurality of plate-like second core pieces, alternately in the stacking direction, The positions between the first core pieces of the first core member and the positions between the second core pieces of the second core member are shifted in the longitudinal direction, and adjacent edges in the stacking direction of the core pieces overlap each other. In the iron core device formed in a ring shape or a rectangular shape by connecting the edges of the core pieces adjacent to each other and provided with connecting means, and rotating the core pieces by the connecting means, The overlapping of the first core member and the second core member, which are alternately stacked one by one or a plurality of sheets, in the stacking direction is set to be smaller at the stack end than at the stack center. Iron core device to do.   The stacking direction of the first core member and the second core member is overlapped in a plurality of sheets at the center of the stack, and the stacking end portions are alternately overlapped one by one. The iron core device described.   The overlapping of the first core member and the second core member in the stacking direction is made smaller every number of sheets at the stacking end portion opposite to the stacking end portion where the through holes are provided than the stacking center portion. The iron core device according to claim 1. The stacking direction of the first core member and the second core member is overlapped with each other in the stacking center portion, and the stacking end portion opposite to the stacking end portion where the through holes are provided is alternately stacked one by one. The iron core device according to claim 3 , wherein the iron core device is overlapped. The connection means is formed on one end side edge front and back surfaces of the first core piece of the first core member and on the other end side edge front and back surfaces of the second core piece of the second core member, respectively. core device according to any one of claims 1 to 4 Aitonaru edge portions in the stacking direction is characterized by being composed by fittable recesses and protrusions. The iron core device according to any one of claims 1 to 4, wherein the connecting means is a pin connection using a pin member. The iron core device according to any one of claims 1 to 4, wherein the connecting means bends a thin portion of a back yoke. And the iron core according to any one of claims 1 to 7, the permanent magnet type motor characterized by comprising a rotor provided with permanent magnets. A hermetic compressor using the permanent magnet motor according to claim 8 .   A first core member that continuously arranges a plurality of plate-like first core pieces, and a second core member that continuously arranges a plurality of plate-like second core pieces, alternately in the stacking direction, and The overlapping of the core members in the stacking direction is made smaller at the stack end than at the stack center, and the position between the first core strips of the first core member and the second core strip of the second core member. A step of laminating the adjacent core pieces in the stacking direction of the core pieces and a connecting means for connecting the adjacent edge portions of the core pieces are provided. A method of manufacturing an iron core device, comprising: a step; and a step of forming each core piece in an annular or rectangular shape by rotating the core pieces by the connecting means. Overlapping alignment in the stacking direction of the first core member and the second core member, the laminated central portion is a plurality every claim 1 0 stack end is characterized in that the overlap for each one alternately The manufacturing method of the iron core apparatus as described in 2 .. After being subjected to the winding core member opposite warped state, manufacture of the core according to claim 1 0, characterized by an annular shape or a rectangular shape by rotating the core pieces in the coupling means Method. A first step in which a convex portion and a concave portion of the edge of the core piece are formed, and a caulking coupling uneven portion of the laminated core is formed in a central portion of the core piece;
A second step of forming both end surfaces and peripheral portions of both end surfaces as a second stage in which the first core member is processed in the peripheral portion where the concavo-convex portions are formed in the first step;
As a second step of processing the second core member in the peripheral portion where the uneven portion is formed in the first step, a third step of forming both end surfaces and peripheral portions of both end surfaces;
The first core member and the second core member are formed by alternately pressing and punching the portions where both end faces are formed in the second step and the third step, respectively. A fourth step in which the two-core member is sequentially laminated in the mold;
A plurality of first core members and a plurality of second core members are alternately stacked, and the overlapping in the stacking direction is made smaller at the stack end than at the stack center , A method of manufacturing an iron core device, wherein the intermittent operations of press punching in the step 2 and the third step are alternately performed for each overlapping number of times. 14. The method according to any one of claims 10 to 13, further comprising a step of measuring the laminated thickness of the core and adjusting the laminated thickness by removing one or more cores when the thickness is larger than a specified dimension value. A method for manufacturing the iron core device according to claim 1.