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US 10,707,008 B2Granted
Iron core including first iron core block and second iron core block
AssigneeFanuc Corporation
InventorMasatomo Shirouzu
Life of this patent
Estimating the term…
Abstract
An iron core includes a first iron core block and a second iron core block disposed so as to create a gap therebetween, and a non-magnetic fastener disposed in the gap. The fastener joins the first iron core block and the second iron core block to each other.
Claims12
An iron core, comprising:
- an outer peripheral core;
- at least three iron cores arranged inside the outer peripheral core which extend only in the radial direction of the outer peripheral core, wherein
- gaps, which can be magnetically coupled, are formed between one of the at least three iron cores and another iron core adjacent thereto, and between the at least three iron cores and the outer peripheral core, and
- the outer peripheral core and the at least three iron cores are formed by stacking a plurality of iron sheets, carbon steel sheets, electromagnetic steel sheets, or amorphous sheets in the stacking direction;
- and
- non-magnetic fasteners for joining, in the stacking direction, between the at least three iron cores as well as between the outer peripheral core and the at least three iron cores.
3 more elements
An iron core, comprising:
- an outer peripheral core;
- a central core arranged inside the outer peripheral core and which is provided with at least three extension portions which extend in only the radial direction of the outer peripheral core, wherein
- gaps, which can be magnetically coupled, are formed between the outer peripheral core and the at least three extension portions, and
- the outer peripheral core is formed by stacking a plurality of iron sheets, carbon steel sheets, electromagnetic steel sheets, or amorphous sheets in the stacking direction;
- and
- non-magnetic fasteners for joining, in the stacking direction, between the outer peripheral core and the at least three extension, wherein
- a radially outer end of each extension portion includes two inclined portions and an outermost portion located between the two inclined portions, and an area between the two inclined portions and an inner surface of the outer peripheral core and an area between the outermost portion and an inner surface of the outer peripheral core are parallel to each other.
4 more elements
An iron core, comprising:
- a first iron core block and a second iron core block disposed so as to create a gap therebetween;
- and
- a non-magnetic fastener disposed in the gap and joining the first iron core block and the second iron core block to each other, the non-magnetic fastener including
- a plurality of screws each including a head portion and a screw portion having outer threads on an outer surface of the screw portion, and
- a shaft having inner threads that engage the outer threads of the screw portion,
- wherein a maximum turning radius of a cross-section of the shaft of the non-magnetic fastener is equal to half a gap length of the gap.
3 more elements
Dependencies are inferred from the claim text.