Method for soldering a stator to a cooler, and stator comprising a solder connection to the stator support
First Claim
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1. Method for soldering a stator of an electric machine to a cooler with the steps:
- coating of the stator and/or the cooler, at least partially, with a layer of solder;
bringing together of the stator with the cooler such that the layer of solder is between the stator and the cooler; and
heating of the cooler to the melt temperature of the layer of solder, in order to produce a solder connection between the stator and the cooler,wherein the cooler is passed through by at least one fluid channel, characterised in that the step of heating comprises the steps;
pouring of a high-boiling liquid into the fluid channel;
inductive heating of the cooler on its side facing away from the stator up to evaporation of the boiling liquid; and
condensing of the boiling liquid in the fluid channel, in order to heat the layer of solder to its melt temperature.
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Abstract
A method for soldering a stator of an electric machine to a cooler is described. Firstly, the stator and/or the cooler is coated, at least partially, with a layer of solder. Then, the stator is brought together with the cooler such that the layer of solder is between the stator and the cooler. Finally, the cooler is heated to the melt temperature of the layer of solder in order to produce a solder connection between the stator and the cooler. The cooler can also act as support. Furthermore, a stator for an electric machine, comprising a stator support and a solder connection between the stator and the stator support is described.
35 Citations
6 Claims
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1. Method for soldering a stator of an electric machine to a cooler with the steps:
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coating of the stator and/or the cooler, at least partially, with a layer of solder; bringing together of the stator with the cooler such that the layer of solder is between the stator and the cooler; and heating of the cooler to the melt temperature of the layer of solder, in order to produce a solder connection between the stator and the cooler, wherein the cooler is passed through by at least one fluid channel, characterised in that the step of heating comprises the steps; pouring of a high-boiling liquid into the fluid channel; inductive heating of the cooler on its side facing away from the stator up to evaporation of the boiling liquid; and condensing of the boiling liquid in the fluid channel, in order to heat the layer of solder to its melt temperature. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification