JPS5950546U - Iron core of electrical equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

Figure 1 is a vertical cross-sectional view of the stator core of a rotating electrical machine with a ventilation cooling structure that eliminates the need for duct pieces, Figure 2 is a plan view of the core plate that constitutes the same stator core, and Figure 3 is shown in Figure 2. A plan view of a core plate in which ventilation holes are provided at slightly shifted positions in the circumferential direction, Figure 4 is a plan view of a core plate without ventilation holes, and Figure 5 is an example of this invention. FIG. 6 is a cross-sectional view of a ventilation duct passing through the inside of the iron core according to an embodiment, FIG. 6 is a cross-sectional view of a ventilation duct passing through the inside of the iron core according to another embodiment of this invention, and FIG. It is an enlarged longitudinal cross-sectional view of a part. 1.11.21: Core plate, 3: Teeth, 41~46°-1
41-146: Ventilation holes, 15. 25: Refrigerant flow path (
ventilation duct).

Claims (2)

[Scope of utility model registration request] (1) A block is formed by stacking a plurality of iron core plates in which a plurality of holes are arranged at equal intervals in the circumferential direction and shifted in radial positions, and the blocks are stacked with the blocks shifted from each other in the circumferential direction. An iron core for an electrical device having a formed ventilation passage, the iron core plate having a plurality of types of iron core plates arranged at the same radial position but shifted in the circumferential direction to form a block, An iron core for an electrical device, characterized in that a ventilation passage is formed by stacking the blocks offset from each other in the circumferential direction. (2) Utility Model Registration Scope of Claims In the iron core for an electrical device as set forth in claim 1, a block is formed by overlapping a plurality of iron core plates with a plurality of holes and a plurality of iron core plates without holes, respectively, and the block is An iron core for electrical equipment, characterized in that a ventilation passage is formed by laminating layers offset from each other in the circumferential direction.