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US 2026/0291349 A1Published application
Method for producing at least one liquid channel in a laminated core, laminated core produced therewith, and electric machine having said laminated core
Assigneevoestalpine Stahl GmbH
InventorRonald Fluch
Life of this patent
Estimating the term…
Abstract
A method for producing at least one liquid channel in a laminated core, a laminated core produced therewith, and an electric machine having said laminated core are disclosed. In order to enable achievement of outstanding properties, it is proposed for at least two openings of the sheet metal parts to each have a collar with tabs, wherein these collars engage with one another along the liquid channel and overlap with one another at least by means of their tabs.
Claims22
A method for producing at least one liquid channel in a laminated core, comprising:
- producing a plurality of openings in a piece of sheet metal or in a sheet metal strip that has an adhesive on at least one flat side, each of the plurality of openings having a circumference contour,
- separating a plurality of sheet metal parts from the piece of sheet metal or the sheet metal strip, each of the plurality of sheet metal parts having at least one opening of the plurality of openings,
- stacking the plurality of sheet metal parts on top of one another in such a way that the plurality of openings define the at least one liquid channel extending in the laminated core, and
- bonding the stacked sheet metal parts to one another with the adhesive to form the laminated core,
- wherein the circumference contours of at least two of the plurality of openings have a plurality of tabs, and
- a collar is produced on each of the at least two openings
- so that the collars engage in one another along the at least one liquid channel and overlap at least by their tabs when the sheet metal parts having the collars (20) are stacked on top of one another.
4 more elements
A laminated core with a liquid channel, comprising:
- a plurality of sheet metal parts stacked on top of one another, and bonded to one another at least with an adhesive, wherein the plurality of sheet metal parts have openings, which define the liquid channel extending in the laminated core, wherein at least two of the openings of the plurality of sheet metal parts each have a collar with tabs, wherein the collars engage with one another along the liquid channel and overlap at least with their tabs.
Dependencies are inferred from the claim text.