Electric motor template-wound coil

DETAILED DESCRIPTION It is an object of the present invention to provide an improved electric motor coil.
It is another object of the invention to provide a coil in which the case would include portions of insulating material and which could be automatically wound and inserted into a pole shoe.
These and other objects of the invention are attained by a coil for an electric motor and insertable into a pole shoe of the motor and comprising a winding which is wound in a template and two cases formed of an insulating material and positioned one opposite to the other, each of the cases being hollow and elongated and receiving therein in a direction of elongation turns of the winding.
The cases may be made of plastics and be arranged in mirror-invented relationship with one another.
The coil cases may be made of the same shape.
It is particularly advantageous for an automatic manufacturing of coils and for automatic connections of the coil end and start that the coil may include pockets formed on each of said cases for receiving contact terminals therein.
These terminals may be either hook-like plugs or sockets.
Each of said cases has an end and a lateral side, said pockets may be provided laterally outwardly of each case at the end thereof so that each pocket forms a stop surface for limiting an insertion of the coil into the pole shoe.
Each case may have a cover wall closing the case to form therein a hollow, through which the turns of the winding extend.
Each of the cases may have at the cover wall thereof two overlapping portions which are connected to each other by a glueing tape or by ultraviolet welding.
The cover wall may have a portion extending laterally outwardly of the case and be provided with recesses, each case having a side wall formed with locking projections received in said recesses and locking the case in a closed position.
Each case has a side wall, said cover wall and said side wall may be formed with portions overlapping each other and connected to each other by through studs