Electric seat and angle adjustment device thereof

An angle adjustment device for an electric seat, comprising an inner toothed plate and an outer toothed plate engaging with each other, an eccentric cavity being formed between the inner toothed plate and the outer toothed plate, an eccentric ring filling a forward eccentric zone of the eccentric cavity being arranged in the eccentric cavity, the eccentric ring being provided with a first accommodating zone and a second accommodating zone in a circumferential direction, and the angle adjustment device for an electric seat further comprising a driving member for driving the eccentric ring to rotate;

• wherein, a damping member is arranged in the first accommodating zone and/or the second accommodating zone, and the damping member is in a compressed state during working of the driving member,
• a wedge-shaped block is arranged in the first accommodating zone, and the driving member is configured to drive the wedge-shaped block or the eccentric ring to drive the eccentric ring to rotate;
• and
• the angle adjustment device further comprises an elastic member for compressing the eccentric ring and the wedge-shaped block,
• the driving member comprises a first driving block extending into the first accommodating zone and a second driving block extending into the second accommodating zone, and each of the first driving block and the second driving block has a driving working surface and a non-driving working surface;
• and
• the damping member comprises a first damping element arranged in the first accommodating zone and a second damping element arranged in the second accommodating zone, one end of each of the first damping element and the second damping abuts against the non-driving working surface of a relative driving block, and another end of each of the first damping element and the second damping element abuts against a side wall of a relative accommodating zone.