As is further apparent from FIGS. 1 to 4, the illustrated exemplary embodiment of the measuring apparatus 10 comprises a second housing 12 and a metal shielding plate 14 that encompasses the second housing 12. In so doing, the metal shielding plate 14 is formed in a closed manner and pushed over the second housing 12. The second housing 12 is formed in the illustrated exemplary embodiment as a synthetic material housing. The measuring element 16.2 is formed in the illustrated embodiment as a TMR component 16.2A that is based on the TMR effect (tunnel magneto-resistive effect) and cooperates with the permanent magnet 22 that is arranged on the end of the shaft 26A of the brushless EC motor in order to detect the prevailing rotational position of the shaft 26A. It is naturally also possible to use other measuring elements 16.2 that are suitable to detect the prevailing rotational position of the shaft. In the illustrated exemplary embodiment of the measuring apparatus 10, a sensor electronic system 16 comprises in addition to the measuring element 16.2 a circuit board 16.1 on which is positioned and fastened the measuring element 16.2, and multiple current rails 16.3 are pressed into the circuit board [16] 16.1 and held in position by the second housing 12. As a consequence, the rotational position signal that is detected by the measuring element 16.2 is transmitted by way of the circuit board 16 and the current rails 16.3 to a (not illustrated) control device.
ROTORPOSITIONSSENSOR FÜR EINEN GLEICHSTROMMOTOR
ROTOR POSITION SENSOR FOR A DIRECT CURRENT MOTOR
CAPTEUR DE POSITION DE ROTOR POUR UN MOTEUR À COURANT CONTINU
2023-07-12
Patent
Electronic Resource
German
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