1results about How to "Contactless" patented technology

This utility model discloses a smart knob with a bearing, including a base, a knob outer ring, an annular rotating component, an inner support component, a pinion, a bearing, and a PCBA circuit board. The base has a bearing mounting position and a pinion mounting position. The bearing is mounted outside the bearing mounting position, and the pinion is rotatably mounted on the pinion mounting position. The lower end of the annular rotating component is mounted outside the bearing, and the outer side of the annular rotating component is connected to the inner side of the knob outer ring. A large gear is located on the inner side of the upper end of the annular rotating component, and the pinion meshes with the large gear. A permanent magnet is installed inside the upper end of the pinion. The inner support component is connected to the base, located above the annular rotating component, and the annular rotating component can rotate below the inner support component. The PCBA circuit board is mounted on the inner support component and has a magnetic induction chip that magnetically inducts with the permanent magnet. This utility model exhibits good rotational smoothness.