US 12,407,229 B2
Method for producing an intermediate product for an electrical machine, comprising a stator laminated core and a housing part, connected thereto, of the housing
Sebastian Dieterich, Bad Neustadt a.d.Saale (DE)
Assigned to Valeo eAutomotive Germany GmbH, Erlangen (DE)
Appl. No. 18/006,322
Filed by Valeo eAutomotive Germany GmbH, Erlangen (DE)
PCT Filed Jul. 21, 2021, PCT No. PCT/EP2021/070415
§ 371(c)(1), (2) Date Jan. 20, 2023,
PCT Pub. No. WO2022/018151, PCT Pub. Date Jan. 27, 2022.
Claims priority of application No. 10 2020 119 442.0 (DE), filed on Jul. 23, 2020.
Prior Publication US 2023/0291293 A1, Sep. 14, 2023
Int. Cl. H02K 15/14 (2025.01); H02K 5/06 (2006.01); C22C 21/02 (2006.01)
CPC H02K 15/14 (2013.01) [H02K 5/06 (2013.01); C22C 21/02 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method for producing an intermediate product for an electrical machine, comprising:
supplying a mould for a housing part, the mould including a first mould part and a second mould part, an upper part of the first mould part including a cavity delimited a first horizontal surface, a second horizontal surface, and a vertical surface connecting the first and second horizontal surfaces and including a first recess, and the second mould part including a vertical surface including a second recess;
laying a stator laminated core inside the cavity of the first mould part such that the stator laminated core abuts the first horizontal surface and is vertically spaced apart from the second horizontal surface;
moving the second mould part towards the first mould part so as to close the mould, the closed mould including a space above the stator laminated core delimited by the first recess, a portion of the vertical wall of the first mould part, the second horizontal wall, a portion of the vertical wall of the second mould part, and the second recess; and
producing the housing part by introducing a molten metal alloy into the space of the closed mould,
wherein the molten metal alloy comes directly into contact with the stator laminated core,
wherein the metal alloy is a magnesium alloy or an aluminium alloy,
wherein the stator laminated core comes directly into contact with the molten metal alloy only at a circumference.