System for temperature monitoring
First Claim
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1. A system for monitoring a temperature prevailing in a stator unit of an electric drive, comprising:
- a position measurement device connected to the drive including a signal processor unit;
an electrical transmitter unit; and
a temperature sensor integrated into windings of the stator unit and configured to deliver a temperature-dependent sensor signal, the electrical transmitter unit configured to input the sensor signal into the signal processor unit;
wherein the temperature sensor includes a temperature-dependent resistor integrated into the windings of the stator unit; and
wherein the electrical transmitter unit includes at least two inductively coupled coils, a first one of the coils associated with the signal processor unit, a second one of the coils associated with the temperature sensor.
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Abstract
A system for monitoring the temperature prevailing in the stator unit of an electric drive includes a temperature sensor that is integrated into the windings of the stator unit and that transmits a temperature-dependent sensor signal. The sensor signal may be injected via an electrical transmitter unit into the signal processing unit of a position measuring device connected to the drive.
22 Citations
13 Claims
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1. A system for monitoring a temperature prevailing in a stator unit of an electric drive, comprising:
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a position measurement device connected to the drive including a signal processor unit;
an electrical transmitter unit; and
a temperature sensor integrated into windings of the stator unit and configured to deliver a temperature-dependent sensor signal, the electrical transmitter unit configured to input the sensor signal into the signal processor unit;
wherein the temperature sensor includes a temperature-dependent resistor integrated into the windings of the stator unit; and
wherein the electrical transmitter unit includes at least two inductively coupled coils, a first one of the coils associated with the signal processor unit, a second one of the coils associated with the temperature sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for monitoring a temperature prevailing in a stator unit of an electric drive, comprising:
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a position measurement device connected to the drive including a signal processor unit;
an electrical transmitter unit; and
a temperature sensor integrated into windings of the stator unit and configured to deliver a temperature-dependent sensor signal, the electrical transmitter unit configured to input the sensor signal into the signal processor unit;
wherein the temperature sensor includes a temperature-dependent resistor integrated into the windings of the stator unit;
wherein the electrical transmitter unit includes at least two inductively coupled coils, a first one of the coils associated with the signal processor unit, a second one of the coils associated with the temperature sensor;
wherein the first one of the coils is arranged to be acted on by activation signals via the electrical transmitter unit to detect the temperature-dependent sensor signal; and
wherein the electrical transmitter unit includes at least one measuring shunt having a constant resistance value. - View Dependent Claims (11, 12, 13)
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Specification