ROTATIONAL JOINT AND DEVICE HAVING SAME

WIPO Patent Application WO/2023/124856

A1

A rotational joint, comprising a joint housing (20), a drive apparatus mounted in the joint housing (20), and an encoder module (30) mounted on the drive apparatus, the drive apparatus having an inner shaft (12) and an outer shaft (11) surrounding the inner shaft (12) and separated radially from the inner shaft (12). The encoder module (30) comprises: a first magnetic disc assembly (31) configured to rotate synchronously with the outer shaft (11); a second magnetic disc assembly (32) configured to rotate synchronously with the inner shaft (12); a first sensor assembly arranged adjacent to the first magnetic disc assembly (31) so as to detect the movement of a magnetic disc of the first magnetic disc assembly (31); and a second sensor assembly arranged adjacent to the second magnetic disc assembly (32) so as to detect the movement of a magnetic disc of the second magnetic disc assembly (32), a magnetic disc surface of the first magnetic disc assembly (31) and a magnetic disc surface of the second magnetic disc assembly (32) being arranged to be coplanar and spaced radially by at least a predetermined distance. Also provided is an apparatus having the rotational joint, the apparatus comprising at least one rotational joint.

SONG TINGKE (US)
AN RAN (US)
WANG XUAN (CN)
CHEN POYEN (US)

PCT/CN2022/137226

July 06, 2023

December 07, 2022

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SHANGHAI FLEXIV ROBOTICS TECH CO LTD (CN)

B25J17/02; B25J19/00

CN114193507A	2022-03-18
CN216682262U	2022-06-07
CN108638096A	2018-10-12
CN212435537U	2021-01-29
CN113799169A	2021-12-17
CN213971276U	2021-08-17
US20030094568A1	2003-05-22

ADVANCE CHINA IP LAW OFFICE (CN)

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