Back to results
US 5,400,654 AGranted
Acceleration sensor with Hall element
AssigneeRobert Bosch GmbH
InventorsHarry Kaiser, Rainer Willig
Life of this patent
Estimating the term…
Abstract
An acceleration sensor has a casing, a deflection spring arranged in the casing and having one end fixed to the casing and a free end, a Hall element, at least one sensor element attached to the free end of the spring and being in active connection with the all element, and a plate having a recess. The deflection spring together with the sensor element is arranged in the recess of the plate, and a hybrid circuit is provided with the Hall element and located on the plate.
Claims10
An acceleration sensor, comprising a casing;
- a deflection spring arranged in said casing and having one fixed end and a free end;
- a Hall element;
- at least one magnetic sensor element attached to said free end of said spring and cooperating with said Hall element so that changes of magnetic field of said at least one magnetic sensor element induce an electric voltage in said Hall element;
- and a plate having a recess, said deflection spring together with said magnetic sensor element being arranged in said recess of said plate;
- and a hybrid circuit with said Hall element and located on said plate so that said plate supports said hybrid circuit and also serves as an overload protection for said deflection spring.
2 more elements
An acceleration sensor, comprising a casing;
- a deflection spring arranged in said casing and having one fixed end and a free end;
- a Hall element;
- at least one magnetic sensor element attached to said free end of said spring and cooperating with said Hall element so that changes of magnetic field of said at least one magnetic sensor element induce an electric voltage in said Hall element;
- and a plate having a recess, said deflection spring together with said magnetic sensor element being arranged in said recess of said plate;
- a hybrid circuit with said Hall element and located on said plate so that said plate supports said hybrid circuit and also serves as an overload protection for said deflection spring, said casing having a connector housing to which said plate is attached;
- and a plurality of cheese-head rivets which attach said plate to said connector housing.
3 more elements
An acceleration sensor, comprising a casing;
- a deflection spring arranged in said casing and having one fixed end and a free end;
- a Hall element;
- at least one magnetic sensor element attached to said free end of said spring and cooperating with said Hall element so that changes of magnetic field of said at least one magnetic sensor element induce an electric voltage in said Hall element;
- and a plate having a recess, said deflection spring together with said magnetic sensor element being arranged in said recess of said plate;
- a hybrid circuit with said Hall element and located on said plate so that said plate supports said hybrid circuit and also serves as an overload protection for said deflection spring;
- and a base plate arranged on said casing and having fixing flanges, said plate having an end which is away from said hybrid circuit, said base plate resting against said end of said plate at least in the region of said sensor element.
3 more elements
An acceleration sensor, comprising a casing;
- a deflection spring arranged in said casing and having one fixed end and a free end;
- a Hall element;
- at least one magnetic sensor element attached to said free end of said spring and cooperating with said Hall element so that changes of magnetic field of said at least one magnetic sensor element induce an electric voltage in said Hall element;
- and a plate having a recess, said deflection spring together with said magnetic sensor element being arranged in said recess of said plate;
- and a hybrid circuit with said Hall element and located on said plate so that said plate supports said hybrid circuit and also serves as an overload protection for said deflection spring, said sensor element having two permanent magnets with magnetic polarities running almost parallel to each other and aligned in direction toward said Hall element, and the polarities of said permanent magnets are set in opposition to each other.
2 more elements
Dependencies are inferred from the claim text.