Damper assembly

By introducing a one-way bearing and damping cavity design into the damper assembly, the problem of uneven damping force during the opening and closing of the rotary damper is solved, achieving smooth opening and buffered descent, thus improving the user experience and product lifespan.

CN223838898UActive Publication Date: 2026-01-27GUANGDONG PEIER TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520403652.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-07
Publication Date
2026-01-27
Estimated Expiration
2035-03-07

AI Technical Summary

Technical Problem

The existing rotary damper provides resistance during both the opening and closing of the top cover relative to the housing, resulting in uneven opening and affecting the feel.

Method used

The damper assembly design includes a lower seat, a rotating seat, and a one-way bearing. A damping cavity is formed between the rotating seat and the lower seat and filled with damping grease. The one-way bearing allows the shaft to rotate freely in one direction and provides damping in the other direction, achieving smooth opening and buffered descent.

Benefits of technology

The top cover allows for smooth opening, requiring minimal effort and providing a pleasant feel. It also offers a cushioning function during descent to prevent impacts and noise, thus extending the product's lifespan.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a damper assembly which comprises a lower base, a rotating base installed in the lower base and an upper sealing cover fixed to the upper end of the lower base, a plurality of damping cavities are formed between the rotating base and the lower base, damping grease is filled in the damping cavities, the rotating base is provided with a center hole penetrating through the upper end and the lower end, and a one-way bearing is fixedly embedded in the center hole. The one-way bearing is provided with a shaft hole, and the inner diameter of the shaft hole is smaller than that of the center hole. During use, the lower seat is fixed on the shell, the shaft hole of the one-way bearing is sleeved on the rotating shaft of the upper cover, and when the upper cover is opened relative to the shell by hands, the rotating shaft of the upper cover idles under the action of the one-way bearing, so that a user can smoothly open the upper cover, labor is saved, and the hand feeling is better. When the hand is released and the upper cover freely falls, the rotating shaft of the upper cover drives the rotating seat to rotate relative to the lower seat under the action of the one-way bearing, and the rotating seat is subjected to the resistance of the damping grease in the damping cavity when rotating relative to the lower seat, so that the rotating speed is reduced, and the buffering function is realized.
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Citation Information

Patent Citations

  • Novel rotary damper

    CN222229264U