Liquid-cooled motor
First Claim
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1. A liquid-cooled motor comprising:
- a rotor having a rotor shaft in a central portion thereof;
a stator comprising a laminated core impregnated with a resin, said laminated core being provided with a plurality of pairs of cooling liquid passages each pair having two axially extending cooling liquid passages bored from one end face to another end face of said laminated core;
end plates applied to axially opposite end faces of the laminated core of said stator, respectively, said two axially extending cooling liquid passages of each pair being connected together at both end faces of said laminated core by a connecting passage;
a plurality of clamping means for inserting through the end plates and the cooling liquid passages of the laminated core, said clamping means for applying a compressive force to the laminated core by pressing the end plates against said axially opposite end faces of said laminated core, respectively, wherein said resin of said laminated core coats the cooling liquid passages of the laminated core with the resin to construct a leakproof construction after the laminated core is clamped with said clamping means.
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Abstract
A liquid-cooled motor having cooling liquid passages (26a, 26b, 26c) formed in the laminated core (16) of the stator (14). End plates (20, 22) are applied to the axially opposite end faces of the laminated core (16) of the stator (14), and a compressive force is applied through the end plates to the laminated core (16) by clamping the laminated core (16) with bolts (30) inserted through the end plates (20, 22) and the cooling liquid passages (26a, 26b) of the laminated core (16).
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Citations
4 Claims
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1. A liquid-cooled motor comprising:
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a rotor having a rotor shaft in a central portion thereof; a stator comprising a laminated core impregnated with a resin, said laminated core being provided with a plurality of pairs of cooling liquid passages each pair having two axially extending cooling liquid passages bored from one end face to another end face of said laminated core; end plates applied to axially opposite end faces of the laminated core of said stator, respectively, said two axially extending cooling liquid passages of each pair being connected together at both end faces of said laminated core by a connecting passage; a plurality of clamping means for inserting through the end plates and the cooling liquid passages of the laminated core, said clamping means for applying a compressive force to the laminated core by pressing the end plates against said axially opposite end faces of said laminated core, respectively, wherein said resin of said laminated core coats the cooling liquid passages of the laminated core with the resin to construct a leakproof construction after the laminated core is clamped with said clamping means. - View Dependent Claims (2, 3, 4)
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Specification