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US 6,179,105 B2Granted
Electrical model railway set
OwnerAdolf Haassinventor
Life of this patent
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Abstract
In an electrical model railway set, increased electromagnetic compatibility is achieved by using AC motors without commutator and slip ring as drive motors for the model vehicles, wherein a simple structure of drive and drive control is attained by performing pulse control of polyphase stator windings of the AC motors of the model vehicles while employing the multi-channel control which is moreover customary in model railway sets.
Claims38
An electrical model railway set comprising
- a current source (5) connected to tracks or to an overhead line (1),
- a stationary central station (6) for generating control signals which are capable of being coupled to the tracks or to the overhead line,
- a plurality of model vehicles (2, 3) movable on the tracks (1), each drawing electrical current from the tracks or from the overhead line (1) and capable of being driven by electrical torque motors (4), and
- control signal receivers (8, 13) located on said model vehicles, for extracting the control signals intended for a model vehicle (2, 3) and for supplying an adjustable electrical drive energy for the respective electrical torque motor, to control the rotary speed thereof,
- characterised in that
- the electrical torque motor is an AC motor (4) without slip ring or commutator, a stator of which presenting several windings is formed such as to generate a rotary magnetic field, and
- said control signal receiver (8, 13) contains a pulse generator unit (13) which applies to the stator windings of the electrical torque motor (4) pulses, the relative phase position of which is adjustable by means of the control signals of said central station (6) supplied to said pulse generator unit (13) in such a way that the rotary speed of the rotary field can be controlled.
4 more elements
Dependencies are inferred from the claim text.