US 12,584,725 B2 · Continuous rotation angle detection sensor 360 DEG SMD

Abstract

The present invention relates to a rotation angle detection sensor designed to overcome the limitations of current potentiometers in measuring angular positions. The sensor incorporates a resistive circular path and multiple collector paths or communicator tracks, enabling continuous measurements of rotation angles from 0 to 360 degrees in either the clockwise or the counterclockwise direction. The sensor achieves enhanced accuracy compared to traditional potentiometers by combining two parallel potentiometer paths. The compact design, comparable in size to existing potentiometers, eliminates dead space and offers a cost-effective alternative to non-contacting rotary position sensors. The sensor's functionality is supported by a fixed substrate or circuit board, slide contacts, spring mechanisms, and housing. Additionally, various circuit configurations and measurement methods are provided to process the output signals and determine the rotation angles accurately. Overall, this innovation presents a versatile and efficient solution for angle detection in a compact form.

Claims14

Dependent claims

A rotational angle-detection sensor for measuring an angle of rotation of a shaft relative to a sensor housing, and the rotational angle-detection sensor comprising:

the sensor housing accommodating a printed circuit board (PCB);
the printed circuit board (PCB) supporting:
an electrical input, a ground and first and second electrical outputs,
a continuous circular resistive track electrically connected to the electrical input and to the ground,
a first communicator track being connected with the first electrical output, and
a second communicator track being connected with the second electrical output;
a rotating disk being accommodated within the sensor housing and designed to engage with and be rotated by a motor shaft, and the rotating disk supporting a conductive body for electrically engaging with the continuous circular resistive track and the first and the second communicator tracks;
wherein a surface of the printed circuit board, facing the rotating disk, supports the continuous circular resistive track, the first communicator track and the second communicator track,
the conductive body faces the continuous circular resistive track, the first communicator track and the second communicator track, and
the angle of rotation of the shaft, relative to the sensor housing, being measured by integrating the first electrical output and the second electrical output with one another.

7 more elements

Dependencies are inferred from the claim text.

Continuous rotation angle detection sensor 360 DEG SMD

Life of this patent

Continuous rotation angle detection sensor 360 DEG SMD

Life of this patent

Abstract

Claims14