Protective sleeve for a revolution rate sensor
AssigneeKNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
InventorsTobias Rohse, Timo Raiser
Life of this patent
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Abstract
A protective sleeve for a revolution rate sensor, in particular for the detection of wheel revolution rates of vehicles. It has: an upper end section, configured to lead electrical connections of the revolution rate sensor out of the protective sleeve, a side wall which connects to the upper end section and extends in the direction of a longitudinal axis, and a lower end section which connects to the side wall, in which the protective sleeve has a recess at its lower end section.
Claims14
A protective sleeve for accommodating a revolution rate sensor with at least one sensor element, comprising:
- an upper end section to lead electrical connections of the revolution rate sensor out of the protective sleeve;
- a side wall that connects to the upper end section and extends in the direction of a longitudinal axis;
- and
- a lower end section that connects to the side wall;
- wherein the protective sleeve has a recess at its lower end section.
A revolution rate sensor for inserting into a protective sleeve, comprising:
- a permanent magnet configured to generate a magnetic field;
- at least one sensor element in an area of the magnetic field to detect the revolution rate of an encoder element assigned to the revolution rate sensor and to convert it into an electrical signal;
- a plastic encapsulation arranged around the permanent magnet and the sensor element to protect the sensor element and fix its arrangement;
- wherein the plastic encapsulation has a protrusion which is configured so that it can be inserted into the recess formed in the lower end section of the protective sleeve and terminates flush with the bottom surface of the lower end section of the protective sleeve, and
- wherein the protective sleeve accommodates the revolution rate sensor with the at least one sensor element, and includes:
- an upper end section to lead electrical connections of the revolution rate sensor out of the protective sleeve;
- a side wall that connects to the upper end section and extends in the direction of a longitudinal axis;
- and
- a lower end section that connects to the side wall, wherein the protective sleeve has a recess at its lower end section.
A system, comprising:
- a protective sleeve for accommodating a revolution rate sensor with at least one sensor element, including:
- an upper end section to lead electrical connections of the revolution rate sensor out of the protective sleeve;
- a side wall that connects to the upper end section and extends in the direction of a longitudinal axis;
- and
- a lower end section that connects to the side wall, wherein the protective sleeve has a recess at its lower end section;
- and
- a revolution rate sensor inserted into the protective sleeve, including:
- a permanent magnet configured to generate a magnetic field;
- at least one sensor element in an area of the magnetic field to detect the revolution rate of an encoder element assigned to the revolution rate sensor and to convert it into an electrical signal;
- a plastic encapsulation arranged around the permanent magnet and the sensor element to protect the sensor element and fix its arrangement;
- wherein the plastic encapsulation has a protrusion which is configured so that it can be inserted into the recess formed in the lower end section of the protective sleeve and terminates flush with the bottom surface of the lower end section of the protective sleeve, and
- wherein the protective sleeve accommodates the revolution rate sensor with the at least one sensor element.
Dependencies are inferred from the claim text.