Electric angle regulator for vehicle seat

Abstract

The invention discloses an electric angle regulator for a vehicle seat. The electric angle regulator comprises a fixed gear housing, a movable gear housing, a closed ring, a drive base, an eccentric block, a clearance eliminating block, a spring, a gasket and a retainer ring, wherein a fixed gear housing shaft sleeve is arranged on the fixed gear housing; a shaft hole is formed in the middle of the shaft sleeve; an inner hole is formed in the movable gear housing; a ring-shaped convex ring is arranged at one side of the movable gear housing, and a lining is arranged in the convex ring; the drive base is arranged in the convex ring, and comprises a rotary disc; one side of the rotary disc is provided with a drive base center shaft; the eccentric block is arranged at one side of the rotary disc, and an eccentric block inner hole is formed in the eccentric block; the shaft sleeve extends into the eccentric block inner hole; an eccentric surface is arranged on the surface at the peripheralside of the eccentric block; an eccentric block baffle bulge is bulged on the peripheral side wall of the eccentric block; the clearance eliminating block is arranged at the outer side of the eccentric block; the inner side of the clearance eliminating block is provided with a clearance eliminating surface, and the outer side of the clearance eliminating block is matched with the inner wall of the lining; one end of the clearance eliminating block is provided with a clearance eliminating block baffle side, and a spring slot is formed in the other side of the clearance eliminating block; the spring is arranged in the spring slot of the clearance eliminating block; the gasket is arranged on the convex ring; and the retainer ring is arranged at one side of the drive base. The electric angleregulator is compact in structure, guarantees taking comfort, and reduces maintenance cost.

Description

technical field [0001] The invention belongs to the technical field of vehicle accessories, and in particular relates to an electric recliner for a car seat. Background technique [0002] Today, with the increasingly developed economy and society, automobiles, as a convenient means of transportation in people's daily life, have become more and more popular among people and have gradually become a necessity for family life. Passenger cars such as automobiles or commercial vehicles are usually equipped with a recliner that adjusts the angle of the seat back so that the seat back conforms to the comfortable curve of the back of the human body. With the continuous improvement of modern electrical automation technology and the rapid development of the new energy vehicle industry, people's demand for the automation of car seat adjustment is getting higher and higher. The electric recliner, which was originally only equipped on some high-end luxury cars, has become a Standard equi...

AI Technical Summary

Problems solved by technology

[0003] China Utility Model Patent Authorization Announcement No. CN203920481U discloses an "electric recliner for car seats", including a movable gear housing, a fixed gear housing with an inner gear, a locking device, a cladding, and a Cooperate with the inner ring gear of the fixed gear housing to form the tooth plate of the differential planetary gear transmission structure. The locking device includes a driver, a torsion spring, a self-lubricating bushing and two locking blocks. The annular groove of the movable gear housing is spaced along the circumferential direction. There are multiple sets of tooth sets, and the tooth plate is meshed with multiple sets of tooth sets of the movable tooth shell at the same time. The electric recliner has the advantages of compact structure, high strength of planetary gear transmission structure, safe and reliable operation, etc. But there are also the following defects: first, because the two free ends of the torsion spring are embedded in the arc grooves of the two lock blocks, the two lock blocks are stretched under the action of the torsion spring force, and the circular part of the torsion spring is designed On the outer periphery of the driver, when the driver continues to drive the lock block to rotate, the torsion spring will inevitably cause friction with the surface of the driver or other components. With the increase of the service life, some tiny cracks, defects and scars It will cause fatigue or even breakage of the torsion spring, which seriously affects its working strength, and cannot ensure that the lock block is effectively stretched to a certain distance, resulting in a gap in the meshing between the fixed gear housing and the movable gear housing, thus failing to ensure the comfort of the passengers; Secondly, since the driver is driven by the drive shaft to continuously rotate to adjust the seat back angle, the outer peripheral surface of the driver will continuously push the lock block to drive the movable gear housing seat for eccentric movement. During long-term use, The relevant parts of the driver will inevitably wear out. Once the driver cannot effectively drive the lock block, the entire driver needs to be replaced. The structure of the driver itself is a structure with a dial and a sleeve protruding from the disc. The structure is relatively complicated. Processing The process is cumbersome, the production cost is high, and the price of a single driver is high, which will also cause additional expenses for later maintenance

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