Drive device with an electric motor and a relay switching the motor current
First Claim
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1. A drive device for use in combination with an electric motor with a permanent magnet and a pole top, the drive device comprising:
- a relay for switching a motor current through the electric motor, comprising at least one electromagnet comprising a relay coil and a relay armature, and at least one relay contact, wherein the relay is mounted in the pole top of the electric motor, and wherein the magnetic field lines generated by the electromagnet are closed through the permanent magnet and the pole top of the electric motor.
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Abstract
A drive device with an electric motor with permanent magnets and a pole top more particularly for use with servo drives in motor vehicles. A relay is provided for switching the motor current with at least one electromagnet, which contains a relay coil and a relay armature, and with at least one relay contact. The relay is mounted in the pole top of the electric motor and the magnetic field lines of the electromagnets are closed through the permanent magnets and the pole top of the electric motor.
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Citations
28 Claims
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1. A drive device for use in combination with an electric motor with a permanent magnet and a pole top, the drive device comprising:
a relay for switching a motor current through the electric motor, comprising at least one electromagnet comprising a relay coil and a relay armature, and at least one relay contact, wherein the relay is mounted in the pole top of the electric motor, and wherein the magnetic field lines generated by the electromagnet are closed through the permanent magnet and the pole top of the electric motor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
Specification