一种非接触式编码器
By using a non-contact encoder on the mouse wheel, and utilizing an optical signal recognition module and a precision assurance module, the problems of easy damage and misreading of existing encoders are solved, achieving high-precision motion recognition and long-life design.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN CHUANGZHENG NETWORK TECH CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-07-17
AI Technical Summary
Existing mouse wheel encoders are prone to damage and their grating structure is susceptible to dust and hair, leading to misreading. Additionally, an extra switch is required to identify vertical and axial movements.
It adopts a non-contact encoder and utilizes multiple sets of optical recognition modules and accuracy assurance modules set on the rotating body to identify circumferential, vertical and axial movements through changes in the amplitude of optical signals, avoiding contact power-on and power-off and increasing the ability to resist dust and hair.
It improves the lifespan of the encoder, reduces the failure rate, and enables accurate identification of circumferential, vertical, and axial movements, thus reducing misjudgments.
Smart Images
Figure CN224517799U_ABST
Abstract
Claims
1. A non-contact encoder comprising a rotator, characterized by: It also includes a light emitting element and a light receiving element. The rotating body is provided with a circumferential motion recognition area centered on the central axis of the rotating body. Multiple sets of light recognition modules are provided on the circumferential motion recognition area. The light recognition module includes at least three types of light recognition units with different photosensitive characteristics. The light transmittance of different light recognition units in the light recognition module is different. During the rotation of the rotating body, the light emitted by the light emitting element passes through the light recognition unit and is received by the light receiving element; or the reflectivity of different light recognition units in the light recognition module is different. During the rotation of the rotating body, the light emitted by the light emitting element is reflected by the light recognition unit and is received by the light receiving element.
2. A non-contact encoder according to claim 1, wherein: The rotating body is provided with a vertical motion recognition area. The distance between the vertical motion recognition area and the central axis of the rotating body is different from the distance between the optical recognition module and the central axis of the rotating body. The vertical motion recognition area is provided with a vertical motion recognition unit. The photosensitive characteristics of the vertical motion recognition unit are different from those of the optical recognition unit.
3. A non-contact encoder according to claim 1, wherein: An axial motion recognition area is provided on the outer circumferential surface of the rotating body. The axial motion recognition area includes at least two axial motion recognition units that are spaced apart along the axial direction. The photosensitive characteristics of the axial motion recognition units are different.
4. A non-contact encoder according to claim 3, wherein: The circumferential motion recognition area is located on the outer circumferential surface of the rotating body, and the axial motion recognition units are located on both sides of the circumferential motion recognition area. The learning and sensing characteristics of the axial motion recognition units and the optical recognition units are different.
5. A non-contact encoder according to any one of claims 1 to 4, wherein: The rotating body is also provided with a precision guarantee module, which includes a light-shielding unit. The light-shielding unit is located in the transition area between two adjacent light recognition units. When the light-shielding unit rotates to correspond with the light receiving unit, the light intensity received by the light receiving unit is the weakest.
6. A non-contact encoder according to any one of claims 1 to 4, wherein: The rotating body is also equipped with a precision guarantee module, which includes a strong response unit. The strong response unit is located in the transition area between two adjacent optical recognition units. When the strong response unit rotates to correspond with the optical receiving unit, the light intensity received by the optical receiving unit is the strongest.
7. A non-contact encoder according to any one of claims 1 to 4, wherein: The transmittance or reflectance of multiple light recognition units in each group of light recognition modules changes gradually.
8. A non-contact encoder according to claim 1, characterized in that: The light recognition unit is a spoke, and the spokes in each group of light recognition modules have different thicknesses so that the light transmittance of the light recognition unit is different.