Midea Group had 103 patents in robotics during Q4 2023. The Midea Group Co Ltd filed patents for an internally meshing planetary gear apparatus, an internally engaged planetary gear device, a mobile health system for health tests and data acquisition, a robot with a robotic arm and multiple degrees of freedom, and a method for monitoring robot-assisted processes using machine-learned models. GlobalData’s report on Midea Group gives a 360-degreee view of the company including its patenting strategy. Buy the report here.
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Midea Group grant share with robotics as a theme is 41% in Q4 2023. Grant share is based on the ratio of number of grants to total number of patents.
Recent Patents
Application: Internally meshing planetary gear apparatus and joint apparatus for robot (Patent ID: US20230405805A1)
The patent filed by Midea Group Co Ltd describes an internally meshing planetary gear apparatus that includes a bearing component, internal gear, planetary gear, inner pins, and a support structure. The inner pins revolve within inner pin holes in the planetary gear and rotate relative to the internal gear, applying pre-pressure when not rotating. The support structure is designed to support the inner pins to counteract the moment generated by the pre-pressure. The device is suitable for applications such as joint devices for robots, where multiple planetary gears can be arranged side-by-side.
The support structure in the internal-meshing planetary gear device comprises holding parts that secure the inner pins on both sides of the planetary gear parallel to the rotation axis. Each set of holding parts includes a pair of rolling bearings. The pre-pressure is applied through a bending moment generated by the inner pins or a negative gap between the inner pin holes and the inner pins, which is less than one-hundredth of the inner pin diameter. Additionally, the joint device for a robot includes a first member fixed to the outer ring and a second member fixed to the inner ring, providing stability and support for the planetary gear system.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
