Tyre pressure monitoring arrangement

摘要

The arrangement has a pneumatically actuable pressure sensor (15) which is attached to a vehicle rim (11) and has a platelet-shaped base body (26) consisting of a metal substrate. The latter has a diaphragm (28) which is formed by a depression (27), open towards the interior of the tyre, of the base body (26). On the side, facing away from the interior of the tyre, of the diaphragm (28), elements (33, 35) for pressure detection and signal processing are arranged. The elements are covered with an insulating layer (37). The base body (26) of the pressure sensor (15) is inserted in a flush fashion into a stepped through-hole (19) of the rim wall (18) from the inside of the tyre with the depression (27) directed towards the inside of the tyre, and the said base body (26) is connected to the rim (11) in a positively engaging or frictionally engaging manner or is connected using a material or materials. The elements (33, 35) for pressure detecting and signal processing are arranged in the through hole section (23) which is on the outside of the tyre and smaller in cross-section. By means of this flush arrangement of the sensor in the rim, in particular the diaphragm and the elements for pressure detection and signal processing are protected against mechanical damage.