Patent ID: 7755226
Filing Date: 2010-07-13
Classification: H02K

Abstract:
1. A stand ( 12 ) for a linear electric motor ( 14 ) comprising a primary ( 18 ) and a secondary ( 20 ), the stand ( 12 ) being mounted movable longitudinally by means of guide means ( 22 ) on a structure ( 16 ) comprising the secondary ( 20 ), the stand ( 12 ) comprising a central plate ( 24 ) to which the primary ( 18 ) is secured and which is connected respectively via a first connection portion ( 28 ) to a first upper wing ( 26 ) and via a second connection portion ( 32 ) to a second lower wing ( 30 ), each of the wings ( 26 , 30 ) comprising a portion of the means ( 22 ) for guiding the stand relative to the structure ( 16 ) which comprises the other matching portion of the guide means ( 22 ), the stand ( 12 ) comprising means ( 52 ) for compensating for the thermal expansion. of the stand ( 12 ) in order to absorb the thermal expansion of the material of the stand ( 12 ) caused by the heating of the primary ( 18 ) in operation, characterized in that the compensation means ( 52 ) consist of oblong slots ( 58 ) delimiting connection bridges ( 60 ) and in that the slots ( 58 ) form cooling vents through which a forced air circulation takes place during the movement of the stand ( 12 ) allowing the primary ( 18 ) to be cooled by convection.